522 files changed, 8351 insertions, 15091 deletions

diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index b275f0e49..000000000
--- a/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-*~
-\#*\#
-a.out
diff --git a/firmware/README b/firmware/README
index a010493c8..251486955 100644
--- a/firmware/README
+++ b/firmware/README
@@ -1,4 +1,6 @@
-This is a placeholder for the firmware code (microblaze and 8051).
+########################################################################
+# Firmware for USRP devices
+########################################################################
 
-The layout should have a common library of source and header files.
-Each usrp-like will have its own device-specific libs and apps.
+fx2 - firmware for USRP1
+zpu - firmware for USRP2 and N Series
diff --git a/firmware/microblaze/.gitignore b/firmware/microblaze/.gitignore
deleted file mode 100644
index e867fe87c..000000000
--- a/firmware/microblaze/.gitignore
+++ /dev/null
@@ -1,46 +0,0 @@
-/*-stamp
-/*.a
-/*.bin
-/*.dump
-/*.log
-/*.rom
-/.deps
-/*.guess
-/*.sub
-/Makefile
-/Makefile.in
-/aclocal.m4
-/autom4te.cache
-/blink_leds
-/blink_leds2
-/build
-/compile
-/config.h
-/config.h.in
-/config.log
-/config.status
-/configure
-/depcomp
-/eth_test
-/gen_eth_packets
-/ibs_rx_test
-/ibs_tx_test
-/install-sh
-/libtool
-/ltmain.sh
-/missing
-/py-compile
-/rcv_eth_packets
-/run_tests.sh
-/stamp-h1
-/test1
-/test_phy_comm
-/timer_test
-/buf_ram_test
-/buf_ram_zero
-/hello
-/configure.lineno
-/configure.guess
-/configure.sub
-*.deps
-*.o
diff --git a/firmware/microblaze/COPYING b/firmware/microblaze/COPYING
deleted file mode 100644
index 94a9ed024..000000000
--- a/firmware/microblaze/COPYING
+++ /dev/null
@@ -1,674 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
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-
-  13. Use with the GNU Affero General Public License.
-
-  Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU Affero General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the special requirements of the GNU Affero General Public License,
-section 13, concerning interaction through a network will apply to the
-combination as such.
-
-  14. Revised Versions of this License.
-
-  The Free Software Foundation may publish revised and/or new versions of
-the GNU General Public License from time to time.  Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<http://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/firmware/microblaze/ChangeLog b/firmware/microblaze/ChangeLog
deleted file mode 100644
index 8b1378917..000000000
--- a/firmware/microblaze/ChangeLog
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/firmware/microblaze/INSTALL b/firmware/microblaze/INSTALL
deleted file mode 100644
index 5458714e1..000000000
--- a/firmware/microblaze/INSTALL
+++ /dev/null
@@ -1,234 +0,0 @@
-Installation Instructions
-*************************
-
-Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
-2006 Free Software Foundation, Inc.
-
-This file is free documentation; the Free Software Foundation gives
-unlimited permission to copy, distribute and modify it.
-
-Basic Installation
-==================
-
-Briefly, the shell commands `./configure; make; make install' should
-configure, build, and install this package.  The following
-more-detailed instructions are generic; see the `README' file for
-instructions specific to this package.
-
-   The `configure' shell script attempts to guess correct values for
-various system-dependent variables used during compilation.  It uses
-those values to create a `Makefile' in each directory of the package.
-It may also create one or more `.h' files containing system-dependent
-definitions.  Finally, it creates a shell script `config.status' that
-you can run in the future to recreate the current configuration, and a
-file `config.log' containing compiler output (useful mainly for
-debugging `configure').
-
-   It can also use an optional file (typically called `config.cache'
-and enabled with `--cache-file=config.cache' or simply `-C') that saves
-the results of its tests to speed up reconfiguring.  Caching is
-disabled by default to prevent problems with accidental use of stale
-cache files.
-
-   If you need to do unusual things to compile the package, please try
-to figure out how `configure' could check whether to do them, and mail
-diffs or instructions to the address given in the `README' so they can
-be considered for the next release.  If you are using the cache, and at
-some point `config.cache' contains results you don't want to keep, you
-may remove or edit it.
-
-   The file `configure.ac' (or `configure.in') is used to create
-`configure' by a program called `autoconf'.  You need `configure.ac' if
-you want to change it or regenerate `configure' using a newer version
-of `autoconf'.
-
-The simplest way to compile this package is:
-
-  1. `cd' to the directory containing the package's source code and type
-     `./configure' to configure the package for your system.
-
-     Running `configure' might take a while.  While running, it prints
-     some messages telling which features it is checking for.
-
-  2. Type `make' to compile the package.
-
-  3. Optionally, type `make check' to run any self-tests that come with
-     the package.
-
-  4. Type `make install' to install the programs and any data files and
-     documentation.
-
-  5. You can remove the program binaries and object files from the
-     source code directory by typing `make clean'.  To also remove the
-     files that `configure' created (so you can compile the package for
-     a different kind of computer), type `make distclean'.  There is
-     also a `make maintainer-clean' target, but that is intended mainly
-     for the package's developers.  If you use it, you may have to get
-     all sorts of other programs in order to regenerate files that came
-     with the distribution.
-
-Compilers and Options
-=====================
-
-Some systems require unusual options for compilation or linking that the
-`configure' script does not know about.  Run `./configure --help' for
-details on some of the pertinent environment variables.
-
-   You can give `configure' initial values for configuration parameters
-by setting variables in the command line or in the environment.  Here
-is an example:
-
-     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
-
-   *Note Defining Variables::, for more details.
-
-Compiling For Multiple Architectures
-====================================
-
-You can compile the package for more than one kind of computer at the
-same time, by placing the object files for each architecture in their
-own directory.  To do this, you can use GNU `make'.  `cd' to the
-directory where you want the object files and executables to go and run
-the `configure' script.  `configure' automatically checks for the
-source code in the directory that `configure' is in and in `..'.
-
-   With a non-GNU `make', it is safer to compile the package for one
-architecture at a time in the source code directory.  After you have
-installed the package for one architecture, use `make distclean' before
-reconfiguring for another architecture.
-
-Installation Names
-==================
-
-By default, `make install' installs the package's commands under
-`/usr/local/bin', include files under `/usr/local/include', etc.  You
-can specify an installation prefix other than `/usr/local' by giving
-`configure' the option `--prefix=PREFIX'.
-
-   You can specify separate installation prefixes for
-architecture-specific files and architecture-independent files.  If you
-pass the option `--exec-prefix=PREFIX' to `configure', the package uses
-PREFIX as the prefix for installing programs and libraries.
-Documentation and other data files still use the regular prefix.
-
-   In addition, if you use an unusual directory layout you can give
-options like `--bindir=DIR' to specify different values for particular
-kinds of files.  Run `configure --help' for a list of the directories
-you can set and what kinds of files go in them.
-
-   If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving `configure' the
-option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
-
-Optional Features
-=================
-
-Some packages pay attention to `--enable-FEATURE' options to
-`configure', where FEATURE indicates an optional part of the package.
-They may also pay attention to `--with-PACKAGE' options, where PACKAGE
-is something like `gnu-as' or `x' (for the X Window System).  The
-`README' should mention any `--enable-' and `--with-' options that the
-package recognizes.
-
-   For packages that use the X Window System, `configure' can usually
-find the X include and library files automatically, but if it doesn't,
-you can use the `configure' options `--x-includes=DIR' and
-`--x-libraries=DIR' to specify their locations.
-
-Specifying the System Type
-==========================
-
-There may be some features `configure' cannot figure out automatically,
-but needs to determine by the type of machine the package will run on.
-Usually, assuming the package is built to be run on the _same_
-architectures, `configure' can figure that out, but if it prints a
-message saying it cannot guess the machine type, give it the
-`--build=TYPE' option.  TYPE can either be a short name for the system
-type, such as `sun4', or a canonical name which has the form:
-
-     CPU-COMPANY-SYSTEM
-
-where SYSTEM can have one of these forms:
-
-     OS KERNEL-OS
-
-   See the file `config.sub' for the possible values of each field.  If
-`config.sub' isn't included in this package, then this package doesn't
-need to know the machine type.
-
-   If you are _building_ compiler tools for cross-compiling, you should
-use the option `--target=TYPE' to select the type of system they will
-produce code for.
-
-   If you want to _use_ a cross compiler, that generates code for a
-platform different from the build platform, you should specify the
-"host" platform (i.e., that on which the generated programs will
-eventually be run) with `--host=TYPE'.
-
-Sharing Defaults
-================
-
-If you want to set default values for `configure' scripts to share, you
-can create a site shell script called `config.site' that gives default
-values for variables like `CC', `cache_file', and `prefix'.
-`configure' looks for `PREFIX/share/config.site' if it exists, then
-`PREFIX/etc/config.site' if it exists.  Or, you can set the
-`CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all `configure' scripts look for a site script.
-
-Defining Variables
-==================
-
-Variables not defined in a site shell script can be set in the
-environment passed to `configure'.  However, some packages may run
-configure again during the build, and the customized values of these
-variables may be lost.  In order to avoid this problem, you should set
-them in the `configure' command line, using `VAR=value'.  For example:
-
-     ./configure CC=/usr/local2/bin/gcc
-
-causes the specified `gcc' to be used as the C compiler (unless it is
-overridden in the site shell script).
-
-Unfortunately, this technique does not work for `CONFIG_SHELL' due to
-an Autoconf bug.  Until the bug is fixed you can use this workaround:
-
-     CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
-
-`configure' Invocation
-======================
-
-`configure' recognizes the following options to control how it operates.
-
-`--help'
-`-h'
-     Print a summary of the options to `configure', and exit.
-
-`--version'
-`-V'
-     Print the version of Autoconf used to generate the `configure'
-     script, and exit.
-
-`--cache-file=FILE'
-     Enable the cache: use and save the results of the tests in FILE,
-     traditionally `config.cache'.  FILE defaults to `/dev/null' to
-     disable caching.
-
-`--config-cache'
-`-C'
-     Alias for `--cache-file=config.cache'.
-
-`--quiet'
-`--silent'
-`-q'
-     Do not print messages saying which checks are being made.  To
-     suppress all normal output, redirect it to `/dev/null' (any error
-     messages will still be shown).
-
-`--srcdir=DIR'
-     Look for the package's source code in directory DIR.  Usually
-     `configure' can determine that directory automatically.
-
-`configure' also accepts some other, not widely useful, options.  Run
-`configure --help' for more details.
-
diff --git a/firmware/microblaze/Makefile.am b/firmware/microblaze/Makefile.am
deleted file mode 100644
index 52fa649c2..000000000
--- a/firmware/microblaze/Makefile.am
+++ /dev/null
@@ -1,29 +0,0 @@
-#
-# Copyright 2010 Ettus Research LLC
-#
-# Copyright 2007,2008 Free Software Foundation, Inc.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-
-include $(top_srcdir)/Makefile.common
-
-EXTRA_DIST = \
-	u2_flash_tool
-
-SUBDIRS = \
-	usrp2 \
-	usrp2p \
-	usrp2p/bootloader
-
diff --git a/firmware/microblaze/Makefile.common b/firmware/microblaze/Makefile.common
deleted file mode 100644
index 4e726edab..000000000
--- a/firmware/microblaze/Makefile.common
+++ /dev/null
@@ -1,88 +0,0 @@
-#
-# Copyright 2010 Ettus Research LLC
-#
-# Copyright 2007 Free Software Foundation, Inc.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-
-include $(top_srcdir)/lib/Makefile.inc
-
-########################################################################
-# lwIP header include dirs
-########################################################################
-LWIPDIR = $(top_srcdir)/lwip/lwip-1.3.1
-
-LWIP_INCLUDES = \
-	-I$(top_srcdir)/lwip \
-	-I$(top_srcdir)/lwip_port \
-	-I$(LWIPDIR)/src/include \
-	-I$(LWIPDIR)/src/include/ipv4
-
-########################################################################
-# misc flags for the mb-gcc compiler
-########################################################################
-MBGCC_CFLAGS = \
-	--std=gnu99 -Wall -Werror-implicit-function-declaration \
-	-mxl-soft-div -msoft-float -mxl-soft-mul -mxl-barrel-shift
-
-########################################################################
-# define for the hal io (FIXME move?)
-########################################################################
-#HAL_IO = -DHAL_IO_USES_DBOARD_PINS 
-HAL_IO = -DHAL_IO_USES_UART 
-
-########################################################################
-# common cflags and ldflags
-########################################################################
-COMMON_CFLAGS = \
-	-I$(top_srcdir)/../../host/lib/usrp \
-	-I$(top_srcdir)/lib \
-	$(MBGCC_CFLAGS) \
-	$(LWIP_INCLUDES) \
-	$(HAL_IO)
-
-COMMON_LFLAGS = \
-	-Wl,-Map -Wl,$(@:.elf=.map)
-
-########################################################################
-# Common stuff for building top level microblaze images
-########################################################################
-#we use COMMON_IHX_ARGS to relocate the reset and interrupt vectors to
-#just below the start of code. upon creating the BIN, any leading padding
-#is thrown out, so the .bin file is valid for uploading to USRP2P. this 
-#does not affect USRP2 because the USRP2 already starts at 0x0000, and
-#because the relocate_args are not defined for USRP2's Makefile.am.
-.elf.bin:
-	$(MB_OBJCOPY) -O binary $(RELOCATE_ARGS) $< $@
-
-.elf.dump:
-	$(MB_OBJDUMP) -DSC $< > $@
-
-.bin.rom:
-	$(HEXDUMP) -v -e'1/1 "%.2X\n"' $< > $@
-
-.elf.ihx:
-	$(MB_OBJCOPY) -O ihex $(RELOCATE_ARGS) $< $@
-
-_generated_from_elf = \
-	$(noinst_PROGRAMS:.elf=.map) \
-	$(noinst_PROGRAMS:.elf=.bin) \
-	$(noinst_PROGRAMS:.elf=.dump) \
-	$(noinst_PROGRAMS:.elf=.rom) \
-	$(noinst_PROGRAMS:.elf=.ihx)
-
-noinst_DATA = $(_generated_from_elf)
-
-MOSTLYCLEANFILES = $(_generated_from_elf)
diff --git a/firmware/microblaze/NEWS b/firmware/microblaze/NEWS
deleted file mode 100644
index e69de29bb..000000000
--- a/firmware/microblaze/NEWS
+++ /dev/null
diff --git a/firmware/microblaze/README b/firmware/microblaze/README
deleted file mode 100644
index 1479ffe1f..000000000
--- a/firmware/microblaze/README
+++ /dev/null
@@ -1,3 +0,0 @@
-./bootstrap
-./configure --host=mb
-make
diff --git a/firmware/microblaze/apps/bitrot/tx_drop.c b/firmware/microblaze/apps/bitrot/tx_drop.c
deleted file mode 100644
index 3a336e938..000000000
--- a/firmware/microblaze/apps/bitrot/tx_drop.c
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_common.h"
-#include "print_rmon_regs.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-/*
- * Like tx_only.c, but we discard data packets instead of sending them to the
- * DSP TX pipeline.
- */
-
-int total_rx_pkts = 0;
-int total_rx_bytes = 0;
-
-
-static int timer_delta = MASTER_CLK_RATE/1000;	// tick at 1kHz
-
-/*
- * This program can respond to queries from the host
- * and stream rx samples.
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to eth flow
- * Buffers 4 and 5 are used to double-buffer the eth to DSP Tx  eth flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-//#define CPU_TX_BUF 	1	// cpu -> eth
-
-#define	DSP_RX_BUF_0	2	// dsp rx -> eth (double buffer)
-#define	DSP_RX_BUF_1	3	// dsp rx -> eth
-#define	DSP_TX_BUF_0	4	// eth -> dsp tx (double buffer)
-#define	DSP_TX_BUF_1	5	// eth -> dsp tx
-
-
-/*
- * ================================================================
- *      configure DSP TX double buffering state machine
- * ================================================================
- */
-
-// 4 lines of ethernet hdr + 2 lines (word0 + timestamp)
-// DSP Tx reads word0 (flags) + timestamp followed by samples
-
-#define DSP_TX_FIRST_LINE		  4
-#define DSP_TX_SAMPLES_PER_FRAME	250	// not used except w/ debugging
-#define	DSP_TX_EXTRA_LINES		  2	// reads word0 + timestamp
-
-// Receive from ethernet
-buf_cmd_args_t dsp_tx_recv_args = {
-  PORT_ETH,
-  0,
-  BP_LAST_LINE
-};
-
-// send to DSP Tx
-buf_cmd_args_t dsp_tx_send_args = {
-  PORT_DSP,
-  DSP_TX_FIRST_LINE,	// starts just past ethernet header
-  0			// filled in from last_line register
-};
-
-dbsm_t dsp_tx_sm;	// the state machine
-
-
-// ----------------------------------------------------------------
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-void
-timer_irq_handler(unsigned irq)
-{
-  hal_set_timeout(timer_delta);	// schedule next timeout
-}
-
-// Tx DSP underrun
-void
-underrun_irq_handler(unsigned irq)
-{
-  putchar('U');
-
-  dbsm_stop(&dsp_tx_sm);
-  dsp_tx_regs->clear_state = 1;
-  dbsm_start(&dsp_tx_sm);  // restart sm so we're listening to ethernet again
-
-  // putstr("\nirq: underrun\n");
-}
-
-
-void
-start_rx_cmd(const eth_mac_addr_t *host, op_start_rx_t *p)
-{
-}
-
-void
-stop_rx_cmd(void)
-{
-}
-
-static void
-setup_tx()
-{
-  dsp_tx_regs->clear_state = 1;
-  bp_clear_buf(DSP_TX_BUF_0);
-  bp_clear_buf(DSP_TX_BUF_1);
-
-  int tx_scale = 256;
-  int interp = 32;
-
-  op_config_tx_t def_config;
-  memset(&def_config, 0, sizeof(def_config));
-  def_config.phase_inc  = 408021893;			// 9.5 MHz [2**32 * fc/fsample]
-  def_config.scale_iq = (tx_scale << 16) | tx_scale;
-  def_config.interp = interp;
-
-  // setup Tx DSP regs
-  config_tx_cmd(&def_config);
-}
-
-
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  uint32_t  status = buffer_pool_status->status;
-
-  if (status & BPS_ERROR_ALL){
-    // FIXME rare path, handle error conditions
-    putstr("Errors! status = ");
-    puthex32_nl(status);
-
-    printf("total_rx_pkts  = %d\n", total_rx_pkts);
-    printf("total_rx_bytes = %d\n", total_rx_bytes);
-
-    print_rmon_regs();
-
-    if (status & (BPS_ERROR(DSP_TX_BUF_0) | BPS_ERROR(DSP_TX_BUF_1))){
-      dbsm_stop(&dsp_tx_sm);		
-      dsp_tx_regs->clear_state = 1; // try to restart
-      dbsm_start(&dsp_tx_sm);
-      return;
-    }
-  }
-
-  dbsm_process_status(&dsp_tx_sm, status);
-
-  if (status & BPS_DONE(CPU_TX_BUF)){
-    bp_clear_buf(CPU_TX_BUF);
-  }
-}
-
-
-/*
- * Called when an ethernet packet is received.
- *
- * Claim that we handled all the packets,
- * dropping those destined for the TX DSP chain
- * on the ground.
- */
-bool
-nop_eth_pkt_inspector(dbsm_t *sm, int bufno)
-{
-  hal_toggle_leds(0x1);
-
-  u2_eth_packet_t *pkt = (u2_eth_packet_t *) buffer_ram(bufno);
-  size_t byte_len = (buffer_pool_status->last_line[bufno] - 1) * 4;
-
-  total_rx_pkts++;
-  total_rx_bytes += byte_len;
-
-  // inspect rcvd frame and figure out what do do.
-
-  if (pkt->ehdr.ethertype != U2_ETHERTYPE)
-    return true;	// ignore, probably bogus PAUSE frame from MAC
-
-  int chan = u2p_chan(&pkt->fixed);
-
-  switch (chan){
-  case CONTROL_CHAN:
-    handle_control_chan_frame(pkt, byte_len);
-    return true;	// we handled the packet
-    break;
-
-  case 0:
-  default:
-    return true;	// We handled the data by dropping it :)
-    break;
-  }
-}
-
-
-int
-main(void)
-{
-  u2_init();
-
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  hal_gpio_set_tx_mode(15, 0, GPIOM_FPGA_1);
-  hal_gpio_set_rx_mode(15, 0, GPIOM_FPGA_1);
-
-  putstr("\ntx_drop\n");
-  
-  // Control LEDs
-  hal_set_leds(0x0, 0x3);
-
-  pic_register_handler(IRQ_UNDERRUN, underrun_irq_handler);
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-  ethernet_init();
-
-  // initialize double buffering state machine for ethernet -> DSP Tx
-
-  dbsm_init(&dsp_tx_sm, DSP_TX_BUF_0,
-	    &dsp_tx_recv_args, &dsp_tx_send_args,
-	    nop_eth_pkt_inspector);
-
-  // program tx registers
-  setup_tx();
-
-  // kick off the state machine
-  dbsm_start(&dsp_tx_sm);
-
-  while(1){
-    buffer_irq_handler(0);
-  }
-}
-
diff --git a/firmware/microblaze/apps/bitrot/tx_drop2.c b/firmware/microblaze/apps/bitrot/tx_drop2.c
deleted file mode 100644
index 3afd722e6..000000000
--- a/firmware/microblaze/apps/bitrot/tx_drop2.c
+++ /dev/null
@@ -1,292 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_common.h"
-#include "print_rmon_regs.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-/*
- * Like tx_only.c, but we discard data packets instead of sending them to the
- * DSP TX pipeline.
- */
-
-int total_rx_pkts = 0;
-int total_rx_bytes = 0;
-
-
-static int timer_delta = MASTER_CLK_RATE/1000;	// tick at 1kHz
-
-/*
- * This program can respond to queries from the host
- * and stream rx samples.
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to eth flow
- * Buffers 4 and 5 are used to double-buffer the eth to DSP Tx  eth flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-//#define CPU_TX_BUF 	1	// cpu -> eth
-
-#define	DSP_RX_BUF_0	2	// dsp rx -> eth (double buffer)
-#define	DSP_RX_BUF_1	3	// dsp rx -> eth
-#define	DSP_TX_BUF_0	4	// eth -> dsp tx (double buffer)
-#define	DSP_TX_BUF_1	5	// eth -> dsp tx
-
-
-/*
- * ================================================================
- *      configure DSP RX double buffering state machine
- * ================================================================
- */
-
-// 4 lines of ethernet hdr + 1 line (word0)
-// DSP Rx writes timestamp followed by nlines_per_frame of samples
-#define DSP_RX_FIRST_LINE		  5
-#define DSP_RX_SAMPLES_PER_FRAME	128
-#define	DSP_RX_EXTRA_LINES		  1	// writes timestamp
-
-// Receive from DSP Rx
-buf_cmd_args_t dsp_rx_recv_args = {
-  PORT_DSP,
-  DSP_RX_FIRST_LINE,
-  BP_LAST_LINE
-};
-
-// send to ethernet
-buf_cmd_args_t dsp_rx_send_args = {
-  PORT_ETH,
-  0,		// starts with ethernet header in line 0
-  0,		// filled in from last_line register
-};
-
-dbsm_t dsp_rx_sm;	// the state machine
-
-/*
- * ================================================================
- *      configure DSP TX double buffering state machine
- * ================================================================
- */
-
-// 4 lines of ethernet hdr + 2 lines (word0 + timestamp)
-// DSP Tx reads word0 (flags) + timestamp followed by samples
-
-#define DSP_TX_FIRST_LINE		  4
-#define DSP_TX_SAMPLES_PER_FRAME	250	// not used except w/ debugging
-#define	DSP_TX_EXTRA_LINES		  2	// reads word0 + timestamp
-
-// Receive from ethernet
-buf_cmd_args_t dsp_tx_recv_args = {
-  PORT_ETH,
-  0,
-  BP_LAST_LINE
-};
-
-// send to DSP Tx
-buf_cmd_args_t dsp_tx_send_args = {
-  PORT_DSP,
-  DSP_TX_FIRST_LINE,	// starts just past ethernet header
-  0			// filled in from last_line register
-};
-
-dbsm_t dsp_tx_sm;	// the state machine
-
-
-// ----------------------------------------------------------------
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-void
-timer_irq_handler(unsigned irq)
-{
-  hal_set_timeout(timer_delta);	// schedule next timeout
-}
-
-// Tx DSP underrun
-void
-underrun_irq_handler(unsigned irq)
-{
-  putchar('U');
-
-  dbsm_stop(&dsp_tx_sm);
-  dsp_tx_regs->clear_state = 1;
-  dbsm_start(&dsp_tx_sm);  // restart sm so we're listening to ethernet again
-
-  // putstr("\nirq: underrun\n");
-}
-
-
-void
-start_rx_cmd(const eth_mac_addr_t *host, op_start_rx_t *p)
-{
-}
-
-void
-stop_rx_cmd(void)
-{
-}
-
-static void
-setup_tx()
-{
-  dsp_tx_regs->clear_state = 1;
-  bp_clear_buf(DSP_TX_BUF_0);
-  bp_clear_buf(DSP_TX_BUF_1);
-
-#if 1
-  int tx_scale = 256;
-  int interp = 32;
-
-  op_config_tx_t def_config;
-  memset(&def_config, 0, sizeof(def_config));
-  def_config.phase_inc  = 408021893;			// 9.5 MHz [2**32 * fc/fsample]
-  def_config.scale_iq = (tx_scale << 16) | tx_scale;
-  def_config.interp = interp;
-
-  // setup Tx DSP regs
-  config_tx_cmd(&def_config);
-#endif
-}
-
-
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  uint32_t  status = buffer_pool_status->status;
-
-  if (status & BPS_ERROR_ALL){
-    // FIXME rare path, handle error conditions
-    putstr("Errors! status = ");
-    puthex32_nl(status);
-
-    printf("total_rx_pkts  = %d\n", total_rx_pkts);
-    printf("total_rx_bytes = %d\n", total_rx_bytes);
-
-    print_rmon_regs();
-
-    if (status & (BPS_ERROR(DSP_TX_BUF_0) | BPS_ERROR(DSP_TX_BUF_1))){
-      dbsm_stop(&dsp_tx_sm);		
-      dsp_tx_regs->clear_state = 1; // try to restart
-      dbsm_start(&dsp_tx_sm);
-      return;
-    }
-  }
-
-  dbsm_process_status(&dsp_tx_sm, status);
-
-  if (status & BPS_DONE(CPU_TX_BUF)){
-    bp_clear_buf(CPU_TX_BUF);
-  }
-}
-
-/*
- * Called when an ethernet packet is received.
- * Return true if we handled it here (always!)
- */
-bool
-nop_eth_pkt_inspector(dbsm_t *sm, int bufno)
-{
-  hal_toggle_leds(0x1);
-
-  u2_eth_packet_t *pkt = (u2_eth_packet_t *) buffer_ram(bufno);
-  size_t byte_len = (buffer_pool_status->last_line[bufno] - 1) * 4;
-
-  total_rx_pkts++;
-  total_rx_bytes += byte_len;
-
-  // inspect rcvd frame and figure out what do do.
-
-  if (pkt->ehdr.ethertype != U2_ETHERTYPE)
-    return true;	// ignore, probably bogus PAUSE frame from MAC
-
-  int chan = u2p_chan(&pkt->fixed);
-
-  switch (chan){
-  case CONTROL_CHAN:
-    handle_control_chan_frame(pkt, byte_len);
-    return true;	// we handled the packet
-    break;
-
-  case 0:
-  default:
-    return true;	// say we handled it
-    break;
-  }
-}
-
-
-int
-main(void)
-{
-  u2_init();
-
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  hal_gpio_set_tx_mode(15, 0, GPIOM_FPGA_1);
-  hal_gpio_set_rx_mode(15, 0, GPIOM_FPGA_1);	// no printing...
-
-  putstr("\ntx_drop2\n");
-  
-  // Control LEDs
-  hal_set_leds(0x0, 0x3);
-
-  // pic_register_handler(IRQ_OVERRUN,  overrun_irq_handler);
-  pic_register_handler(IRQ_UNDERRUN, underrun_irq_handler);
-
-  //pic_register_handler(IRQ_TIMER, timer_irq_handler);
-  //hal_set_timeout(timer_delta);
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-
-  ethernet_init();
-
-  // initialize double buffering state machine for ethernet -> DSP Tx
-
-  dbsm_init(&dsp_tx_sm, DSP_TX_BUF_0,
-	    &dsp_tx_recv_args, &dsp_tx_send_args,
-	    nop_eth_pkt_inspector);
-
-  // program tx registers
-  setup_tx();
-
-  // kick off the state machine
-  dbsm_start(&dsp_tx_sm);
-
-  while(1){
-    buffer_irq_handler(0);
-  }
-}
-
diff --git a/firmware/microblaze/apps/bitrot/tx_drop_rate_limited.c b/firmware/microblaze/apps/bitrot/tx_drop_rate_limited.c
deleted file mode 100644
index 2b8db7f7d..000000000
--- a/firmware/microblaze/apps/bitrot/tx_drop_rate_limited.c
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_common.h"
-#include "print_rmon_regs.h"
-#include "eth_mac.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-/*
- * receive packets from ethernet at a fixed rate and discard them
- */
-
-int total_rx_pkts = 0;
-int total_rx_bytes = 0;
-
-
-static int timer_delta = (int)(MASTER_CLK_RATE * 10e-6); // 10us / tick
-
-
-/*
- * This program can respond to queries from the host
- * and stream rx samples.
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to eth flow
- * Buffers 4 and 5 are used to double-buffer the eth to DSP Tx  eth flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-//#define CPU_TX_BUF 	1	// cpu -> eth
-
-#define	DSP_RX_BUF_0	2	// dsp rx -> eth (double buffer)
-#define	DSP_RX_BUF_1	3	// dsp rx -> eth
-#define	DSP_TX_BUF_0	4	// eth -> dsp tx (double buffer)
-#define	DSP_TX_BUF_1	5	// eth -> dsp tx
-
-
-
-// ----------------------------------------------------------------
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-static volatile bool receive_packet_now = false;
-
-void
-timer_irq_handler(unsigned irq)
-{
-  hal_set_timeout(timer_delta);	// schedule next timeout
-  receive_packet_now = true;
-}
-
-
-// Tx DSP underrun
-void
-underrun_irq_handler(unsigned irq)
-{
-  putchar('U');
-}
-
-
-void
-start_rx_cmd(const eth_mac_addr_t *host, op_start_rx_t *p)
-{
-}
-
-void
-stop_rx_cmd(void)
-{
-}
-
-static void
-setup_tx()
-{
-  dsp_tx_regs->clear_state = 1;
-  bp_clear_buf(DSP_TX_BUF_0);
-  bp_clear_buf(DSP_TX_BUF_1);
-
-  int tx_scale = 256;
-  int interp = 32;
-
-  op_config_tx_t def_config;
-  memset(&def_config, 0, sizeof(def_config));
-  def_config.phase_inc  = 408021893;			// 9.5 MHz [2**32 * fc/fsample]
-  def_config.scale_iq = (tx_scale << 16) | tx_scale;
-  def_config.interp = interp;
-
-  // setup Tx DSP regs
-  config_tx_cmd(&def_config);
-}
-
-
-/*
- * Called when an ethernet packet is received.
- *
- * Claim that we handled all the packets,
- * dropping those destined for the TX DSP chain
- * on the ground.
- */
-bool
-nop_eth_pkt_inspector(dbsm_t *sm, int bufno)
-{
-  hal_toggle_leds(0x1);
-
-  u2_eth_packet_t *pkt = (u2_eth_packet_t *) buffer_ram(bufno);
-  size_t byte_len = (buffer_pool_status->last_line[bufno] - 1) * 4;
-
-  total_rx_pkts++;
-  total_rx_bytes += byte_len;
-
-  // inspect rcvd frame and figure out what do do.
-
-  if (pkt->ehdr.ethertype != U2_ETHERTYPE)
-    return true;	// ignore, probably bogus PAUSE frame from MAC
-
-  int chan = u2p_chan(&pkt->fixed);
-
-  switch (chan){
-  case CONTROL_CHAN:
-    handle_control_chan_frame(pkt, byte_len);
-    return true;	// we handled the packet
-    break;
-
-  case 0:
-  default:
-    return true;	// We handled the data by dropping it :)
-    break;
-  }
-}
-
-
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  uint32_t  status = buffer_pool_status->status;
-
-  if (status & (BPS_DONE(CPU_TX_BUF) | BPS_ERROR(CPU_TX_BUF)))
-    bp_clear_buf(CPU_TX_BUF);
-
-  if (status & (BPS_DONE(DSP_TX_BUF_0) | BPS_ERROR(DSP_TX_BUF_0))){
-    bp_clear_buf(DSP_TX_BUF_0);
-
-    if (status & BPS_ERROR(DSP_TX_BUF_0)){
-      int crc = eth_mac_read_rmon(0x05);
-      int fifo_full = eth_mac_read_rmon(0x06);
-      int too_short_too_long = eth_mac_read_rmon(0x07);
-      putstr("Errors! status = ");
-      puthex32_nl(status);
-
-      printf("crc_err\t\t= %d\n", crc);
-      printf("fifo_full\t\t= %d\n", fifo_full);
-      printf("too_short_too_long\t= %d\n", too_short_too_long);
-
-      printf("total_rx_pkts  = %d\n", total_rx_pkts);
-      printf("total_rx_bytes = %d\n", total_rx_bytes);
-    }
-    else
-      nop_eth_pkt_inspector(0, DSP_TX_BUF_0);
-  }
-
-  if (receive_packet_now && (status & BPS_IDLE(DSP_TX_BUF_0))){
-    receive_packet_now = false;
-    bp_receive_to_buf(DSP_TX_BUF_0, PORT_ETH, 1, 0, BP_LAST_LINE);
-  }
-}
-
-
-int
-main(void)
-{
-  u2_init();
-
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  hal_gpio_set_tx_mode(15, 0, GPIOM_FPGA_1);
-  hal_gpio_set_rx_mode(15, 0, GPIOM_FPGA_1);
-
-  putstr("\ntx_drop_rate_limited\n");
-  
-  // Control LEDs
-  hal_set_leds(0x0, 0x3);
-
-  pic_register_handler(IRQ_UNDERRUN, underrun_irq_handler);
-
-  pic_register_handler(IRQ_TIMER, timer_irq_handler);
-  hal_set_timeout(timer_delta);
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-  ethernet_init();
-
-  // program tx registers
-  setup_tx();
-
-  // start a receive from ethernet
-  bp_receive_to_buf(DSP_TX_BUF_0, PORT_ETH, 1, 0, BP_LAST_LINE);
-
-  while(1){
-    buffer_irq_handler(0);
-  }
-}
-
diff --git a/firmware/microblaze/apps/cruft/Makefile.am b/firmware/microblaze/apps/cruft/Makefile.am
deleted file mode 100644
index a4f79935b..000000000
--- a/firmware/microblaze/apps/cruft/Makefile.am
+++ /dev/null
@@ -1,82 +0,0 @@
-#
-# Copyright 2010 Ettus Research LLC
-#
-# Copyright 2007,2008 Free Software Foundation, Inc.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-
-include $(top_srcdir)/Makefile.common
-
-LDADD = $(top_srcdir)/lib/libu2fw.a
-
-AM_CFLAGS += -I$(top_srcdir)/../../host/lib/usrp
-
-noinst_PROGRAMS = txrx_uhd.elf
-
-#	blink_leds \
-#	blink_leds2 \
-#	buf_ram_test \
-#	burn_dbsrx_eeprom \
-#	can_i_sub \
-#	echo \
-#	hello \
-#	read_dbids \
-#	set_hw_rev \
-#	test1 \
-#	test_db_spi \
-#	test_i2c \
-#	test_sd \
-#	test_ram \
-#	test_phy_comm \
-#	test_lsadc \
-#	test_lsdac \
-#	timer_test \
-#	txrx \
-#	burnrev30 \
-#	burnrev31 \
-#	burnrev40 \
-#	sd_gentest \
-#	sd_bounce
-#
-
-#nononono =  \
-#	eth_serdes \
-#	gen_eth_packets \
-#	rcv_eth_packets \
-#	tx_standalone \
-#	factory_test \
-#	serdes_txrx \
-#	mimo_tx \
-#	mimo_tx_slave \
-#	ibs_rx_test \
-#	ibs_tx_test
-
-# tx_drop_SOURCES = tx_drop.c app_common.c
-# tx_drop_rate_limited_SOURCES = tx_drop_rate_limited.c app_common.c
-# tx_drop2_SOURCES = tx_drop2.c app_common.c
-txrx_uhd_elf_SOURCES = txrx_uhd.c
-# app_common_v2.c
-#factory_test_SOURCES = factory_test.c app_common_v2.c
-#eth_serdes_SOURCES = eth_serdes.c app_passthru_v2.c
-#serdes_txrx_SOURCES = serdes_txrx.c app_common_v2.c
-#mimo_tx_SOURCES = mimo_tx.c mimo_app_common_v2.c
-#mimo_tx_slave_SOURCES = mimo_tx_slave.c app_common_v2.c
-
-#noinst_HEADERS = \
-#        app_common_v2.h \
-#        app_passthru_v2.h \
-#        mimo_app_common_v2.h
-#
-
diff --git a/firmware/microblaze/apps/cruft/app_passthru_v2.c b/firmware/microblaze/apps/cruft/app_passthru_v2.c
deleted file mode 100644
index 406c56b3b..000000000
--- a/firmware/microblaze/apps/cruft/app_passthru_v2.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "app_passthru_v2.h"
-#include "buffer_pool.h"
-#include "memcpy_wa.h"
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "print_rmon_regs.h"
-#include "db.h"
-#include "clocks.h"
-#include <string.h>
-
-volatile bool link_is_up = false;	// eth handler sets this
-
-
-// If this is non-zero, this dbsm could be writing to the ethernet
-dbsm_t *ac_could_be_sending_to_eth;
-
-//static unsigned char exp_seqno = 0;
-
-void
-set_reply_hdr(u2_eth_packet_t *reply_pkt, u2_eth_packet_t const *cmd_pkt)
-{
-  reply_pkt->ehdr.dst = cmd_pkt->ehdr.src;
-  reply_pkt->ehdr.src = *ethernet_mac_addr();
-  reply_pkt->ehdr.ethertype = U2_ETHERTYPE;
-  reply_pkt->thdr.flags = 0;
-  reply_pkt->thdr.fifo_status = 0;	// written by protocol engine
-  reply_pkt->thdr.seqno = 0;		// written by protocol engine
-  reply_pkt->thdr.ack = 0;		// written by protocol engine
-  u2p_set_word0(&reply_pkt->fixed, 0, CONTROL_CHAN);
-  reply_pkt->fixed.timestamp = timer_regs->time;
-}
-
-static void
-send_reply(unsigned char *reply, size_t reply_len)
-{
-  if (reply_len < 64)
-    reply_len = 64;
-
-  // wait for buffer to become idle
-  hal_set_leds(0x4, 0x4);
-  while((buffer_pool_status->status & BPS_IDLE(CPU_TX_BUF)) == 0)
-    ;
-  hal_set_leds(0x0, 0x4);
-
-  // copy reply into CPU_TX_BUF
-  memcpy_wa(buffer_ram(CPU_TX_BUF), reply, reply_len);
-
-  // wait until nobody else is sending to the ethernet
-  if (ac_could_be_sending_to_eth){
-    hal_set_leds(0x8, 0x8);
-    dbsm_wait_for_opening(ac_could_be_sending_to_eth);
-    hal_set_leds(0x0, 0x8);
-  }
-
-  // fire it off
-  bp_send_from_buf(CPU_TX_BUF, PORT_ETH, 1, 0, reply_len/4);
-
-  // wait for it to complete (not long, it's a small pkt)
-  while((buffer_pool_status->status & (BPS_DONE(CPU_TX_BUF) | BPS_ERROR(CPU_TX_BUF))) == 0)
-    ;
-
-  bp_clear_buf(CPU_TX_BUF);
-}
-
-
-static size_t
-op_id_cmd(const op_generic_t *p,
-	  void *reply_payload, size_t reply_payload_space)
-{
-  op_id_reply_t *r = (op_id_reply_t *) reply_payload;
-  if (reply_payload_space < sizeof(*r))	// no room
-    return 0;
-
-  // Build reply subpacket
-
-  r->opcode = OP_ID_REPLY;
-  r->len = sizeof(op_id_reply_t);
-  r->rid = p->rid;
-  r->addr = *ethernet_mac_addr();
-  r->hw_rev = 0x0000;	// FIXME
-  // r->fpga_md5sum = ;	// FIXME
-  // r->sw_md5sum = ;	// FIXME
-
-  // FIXME Add d'board info, including dbid, min/max gain, min/max freq
-
-  return r->len;
-}
-
-static size_t
-add_eop(void *reply_payload, size_t reply_payload_space)
-{
-  op_generic_t *r = (op_generic_t *) reply_payload;
-  if (reply_payload_space < sizeof(*r))		
-    return 0;					// no room
-
-  r->opcode = OP_EOP;
-  r->len = sizeof(*r);
-  r->rid = 0;
-  r->ok =  0;
-
-  return r->len;
-}
-
-bool
-handle_control_chan_frame(u2_eth_packet_t *pkt, size_t len)
-{
-  unsigned char reply[sizeof(u2_eth_packet_t) + 4 * sizeof(u2_subpkt_t)] _AL4;
-  unsigned char *reply_payload = &reply[sizeof(u2_eth_packet_t)];
-  int reply_payload_space = sizeof(reply) - sizeof(u2_eth_packet_t);
-
-  bool handled_it = false;
-
-  // initialize reply
-  memset(reply, 0, sizeof(reply));
-  set_reply_hdr((u2_eth_packet_t *) reply, pkt);
-
-  // point to beginning of payload (subpackets)
-  unsigned char *payload = ((unsigned char *) pkt) + sizeof(u2_eth_packet_t);
-  int payload_len = len - sizeof(u2_eth_packet_t);
-
-  size_t subpktlen = 0;
-
-  while (payload_len >= sizeof(op_generic_t)){
-    const op_generic_t *gp = (const op_generic_t *) payload;
-    subpktlen = 0;
-
-    switch(gp->opcode){
-    case OP_EOP:		// end of subpackets
-      goto end_of_subpackets;
-
-    case OP_ID:
-      subpktlen = op_id_cmd(gp, reply_payload, reply_payload_space);
-      handled_it = true;
-      break;
-
-    default:
-      if (0){
-	printf("\npassing on %d\n", gp->opcode);
-      }
-      break;
-    }
-
-    int t = (gp->len + 3) & ~3;		// bump to a multiple of 4
-    payload += t;
-    payload_len -= t;
-
-    subpktlen = (subpktlen + 3) & ~3;	// bump to a multiple of 4
-    reply_payload += subpktlen;
-    reply_payload_space -= subpktlen;
-  }
-
- end_of_subpackets:
-
-  if (handled_it){
-    // add the EOP marker
-    subpktlen = add_eop(reply_payload, reply_payload_space);
-    subpktlen = (subpktlen + 3) & ~3;	// bump to a multiple of 4
-    reply_payload += subpktlen;
-    reply_payload_space -= subpktlen;
-
-    send_reply(reply, reply_payload - reply);
-  }
-
-  return handled_it;
-}
-
-
-/*
- * Called when an ethernet packet is received.
- * Return true if we handled it here, otherwise
- * it'll be passed on to the DSP Tx pipe
- */
-bool
-eth_pkt_inspector(dbsm_t *sm, int bufno)
-{
-  u2_eth_packet_t *pkt = (u2_eth_packet_t *) buffer_ram(bufno);
-  size_t byte_len = (buffer_pool_status->last_line[bufno] - 3) * 4;
-
-  //static size_t last_len = 0;
-
-  // hal_toggle_leds(0x1);
-
-  // inspect rcvd frame and figure out what do do.
-
-  if (pkt->ehdr.ethertype != U2_ETHERTYPE)
-    return true;	// ignore, probably bogus PAUSE frame from MAC
-
-  int chan = u2p_chan(&pkt->fixed);
-
-  switch (chan){
-  case CONTROL_CHAN:
-    return handle_control_chan_frame(pkt, byte_len);
-    break;
-
-  case 0:
-  default:
-#if 0
-    if (last_len != 0){
-      if (byte_len != last_len){
-	printf("Len: %d last: %d\n", byte_len, last_len);
-      }
-    }
-    last_len = byte_len;
-
-    if((pkt->thdr.seqno) == exp_seqno){
-      exp_seqno++;
-      //putchar('.');
-    }
-    else {
-      // putchar('S');
-      //printf("S%d %d ",exp_seqno,pkt->thdr.seqno);
-      exp_seqno = pkt->thdr.seqno + 1;
-    }
-#endif
-    return false;	// pass it on to Tx DSP
-    break;
-  }
-}
-
-/*
- * Called when eth phy state changes (w/ interrupts disabled)
- */
-void
-link_changed_callback(int speed)
-{
-  link_is_up = speed != 0;
-  hal_set_leds(link_is_up ? LED_RJ45 : 0x0, LED_RJ45);
-  printf("\neth link changed: speed = %d\n", speed);
-}
diff --git a/firmware/microblaze/apps/cruft/app_passthru_v2.h b/firmware/microblaze/apps/cruft/app_passthru_v2.h
deleted file mode 100644
index 3904c670f..000000000
--- a/firmware/microblaze/apps/cruft/app_passthru_v2.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef INCLUDED_APP_COMMON_H
-#define INCLUDED_APP_COMMON_H
-
-#include <stdbool.h>
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "memory_map.h"
-#include "hal_io.h"
-#include <stddef.h>
-#include <db.h>
-
-#define CPU_TX_BUF 	7	// cpu -> eth
-
-#define	_AL4 __attribute__((aligned (4)))
-
-extern volatile bool link_is_up;	// eth handler sets this
-
-
-// If there's a dbsm that sends to the ethernet, put it's address here
-extern dbsm_t *ac_could_be_sending_to_eth;
-
-
-void set_reply_hdr(u2_eth_packet_t *reply_pkt, u2_eth_packet_t const *cmd_pkt);
-
-/*
- * Called when an ethernet packet is received.
- * Return true if we handled it here, otherwise
- * it'll be passed on to the DSP Tx pipe
- */
-bool eth_pkt_inspector(dbsm_t *sm, int bufno);
-
-void link_changed_callback(int speed);
-
-bool handle_control_chan_frame(u2_eth_packet_t *pkt, size_t len);
-
-#endif /* INCLUDED_APP_COMMON_H */
diff --git a/firmware/microblaze/apps/cruft/blink_leds2.c b/firmware/microblaze/apps/cruft/blink_leds2.c
deleted file mode 100644
index 13e78afb3..000000000
--- a/firmware/microblaze/apps/cruft/blink_leds2.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "hal_io.h"
-#include "pic.h"
-#include "nonstdio.h"
-
-//#define DELTA_T  (MASTER_CLK_RATE/2)	// 0.5s (10ns per tick)
-#define DELTA_T  5000  		// 5 us (10ns per tick)
-
-
-void
-timer_handler(unsigned irq)
-{
-  hal_set_timeout(DELTA_T);	// schedule next timeout
-  hal_toggle_leds(0x2);
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  putstr("blink_leds2\n");
-  pic_register_handler(IRQ_ONETIME, timer_handler);
-  hal_set_timeout(DELTA_T);	// schedule next timeout
-
-  while(1){
-    hal_toggle_leds(0x1);
-  }
-
-  return 0;
-}
diff --git a/firmware/microblaze/apps/cruft/buf_ram_test.c b/firmware/microblaze/apps/cruft/buf_ram_test.c
deleted file mode 100644
index 1aca2aec5..000000000
--- a/firmware/microblaze/apps/cruft/buf_ram_test.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include <stdbool.h>
-#include "nonstdio.h"
-#include "hal_io.h"
-#include "mdelay.h"
-
-
-static void
-write_bufs(void)
-{
-  int	i, n;
-  int	counter = 0;
-
-  for (n = 0; n < NBUFFERS; n++){
-    volatile int *p = buffer_ram(n);
-    for (i = 0; i < BP_NLINES; i++)
-      p[i] = counter++;
-  }
-}
-
-// return number of errors detected
-static int
-check_bufs(void)
-{
-  int	i, n;
-  int	counter = 0;
-  int	nerrors = 0;
-
-  for (n = 0; n < NBUFFERS; n++){
-    volatile int *p = buffer_ram(n);
-    for (i = 0; i < BP_NLINES; i++, counter++){
-      int rd = p[i];
-      if (rd != counter){
-	putchar('b');
-	putchar(n + '0');
-	putchar('[');
-	puthex16(i);
-	putstr("] exp: ");
-	puthex32(counter);
-	putstr(" got: ");
-	puthex32_nl(rd);
-	nerrors++;
-      }
-    }
-  }
-  return nerrors;
-}
-
-
-int
-main(void)
-{
-  u2_init();
-
-  output_regs->leds = 0;
-
-  write_bufs();
-  int nerrors = check_bufs();
-
-  if (nerrors == 0){
-    output_regs->leds = 0x3;		// leds on  -> PASS
-    putstr("PASS\n");
-  }
-  else {
-    output_regs->leds = 0x0;		// leds off -> FAIL
-    putstr("FAIL\n");
-  }
-
-  hal_finish();
-  return 0;
-}
diff --git a/firmware/microblaze/apps/cruft/burn_dbsrx_eeprom.c b/firmware/microblaze/apps/cruft/burn_dbsrx_eeprom.c
deleted file mode 100644
index 116d4d8d0..000000000
--- a/firmware/microblaze/apps/cruft/burn_dbsrx_eeprom.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2009 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "i2c.h"
-#include "usrp2_i2c_addr.h"
-#include "mdelay.h"
-#include "hal_io.h"
-#include "nonstdio.h"
-#include <stdbool.h>
-
-
-
-int read_dboard_eeprom(int i2c_addr);
-
-
-#define USRP_DBID_DBS_RX          	 0x0002
-#define USRP_DBID_DBS_RX_WITH_CLOCK_MOD  0x000d
-
-const char dbs_rx_rev2_eeprom[] = {
-  0xdb, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18
-};
-
-#define	LED_VALS   (LED_A | LED_B | LED_C | LED_D)
-#define	LED_MASK   (LED_A | LED_B | LED_C | LED_D)
-
-int
-main(void)
-{
-  u2_init();
-
-  puts("\nburn_dbsrx_eeprom\n");
-
-  hal_set_leds(0, ~0);	// all off
-
-  int i2c_addr = I2C_ADDR_RX_A;
-  int dbid = read_dboard_eeprom(i2c_addr);
-  bool ok;
-  const char *msg = 0;
-
-  switch (dbid){
-  case -1:
-    msg = "No RX daughterboard found";
-    goto bad;
-
-  case -2:
-    msg = "Invalid RX EEPROM contents";
-    goto bad;
-
-  case USRP_DBID_DBS_RX_WITH_CLOCK_MOD:
-    msg = "RX Daughterboard already reports being a DBS RX w/ CLOCK_MOD";
-    goto good;
-
-  case USRP_DBID_DBS_RX:
-    // Says it's a DBS_RX, attempt to burn the EEPROM
-    ok = eeprom_write(i2c_addr, 0,
-		      dbs_rx_rev2_eeprom, sizeof(dbs_rx_rev2_eeprom));
-    if (ok){
-      msg = "Successfully programmed db as DBS RX Rev 2.1";
-      goto good;
-    }
-    else {
-      msg = "Failed to write daugherboard eeprom";
-      goto bad;
-    }
-
-  default:
-    msg = "Daughterboard is not a DBS RX; ignored";
-    goto bad;
-  }
-  
- good:
-  puts(msg);
-  hal_set_leds(LED_VALS, LED_MASK);
-  while (1)
-    ;
-
- bad:
-  puts(msg);
-  while(1){
-    hal_toggle_leds(LED_VALS);
-    mdelay(50);
-  }
-}
diff --git a/firmware/microblaze/apps/cruft/burnrev30.c b/firmware/microblaze/apps/cruft/burnrev30.c
deleted file mode 100644
index 40fa53e34..000000000
--- a/firmware/microblaze/apps/cruft/burnrev30.c
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_common_v2.h"
-#include "memcpy_wa.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <i2c.h>
-#include <usrp2_i2c_addr.h>
-#include <clocks.h>
-#include "sd.h"
-#include "mdelay.h"
-
-#define HW_REV_MAJOR 3
-#define HW_REV_MINOR 0
-
-int test_ram()
-{
-  int i,j,k;
-  output_regs->ram_page = 1<<10;
-  
-  extram[0] = 0xDEADBEEF;
-  extram[1] = 0xF00D1234;
-  extram[7] = 0x76543210;
-  
-  output_regs->ram_page = 2<<10;
-  extram[7] = 0x55555555;
-  extram[1] = 0xaaaaaaaa;
-  extram[0] = 0xeeeeeeee;
-  
-  output_regs->ram_page = 1<<10;
-  
-  i = extram[0];
-  k = extram[1];
-  j = extram[7];
-  
-  if((i != 0xDEADBEEF)||(j!=0x76543210)||(k!=0xF00D1234)) {
-    puts("RAM FAIL1!\n");
-    puthex32_nl(i);
-    puthex32_nl(j);
-    puthex32_nl(k);
-    return 0;
-  }
-  
-  output_regs->ram_page = 2<<10;
-
-  j = extram[7];
-  k = extram[1];
-  i = extram[0];
-
-  if((i != 0xeeeeeeee)||(j!=0x55555555)||(k!=0xaaaaaaaa)) {
-    puts("RAM FAIL2!\n");
-    puthex32_nl(i);
-    puthex32_nl(j);
-    puthex32_nl(k);
-    return 0;
-  }
-  return 1;
-}
-
-int test_sd()
-{
-  int i = sd_init();
-  if(i==0) {
-    puts("FAILED INIT of Card\n");
-    return 0;
-  }
-  
-  unsigned char buf[512];
-  i = sd_read_block(2048,buf);
-  if(i == 0) {
-    puts("READ Command Rejected\n");
-    return 0;
-  }
-  if((buf[0]==0xb8)&&(buf[1]==0x08)&&(buf[2]==0x00)&&(buf[3]==0x50))
-    ;
-  else {
-    puts("Read bad data from SD Card\n");
-    return 0;
-  }
-  return 1;
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  putstr("\nFactory Test, Board Rev 3.0\n");
-
-  bool ok = true;
-  unsigned char maj = HW_REV_MAJOR;
-  unsigned char min = HW_REV_MINOR;
-  ok = eeprom_write(I2C_ADDR_MBOARD, MBOARD_REV_MSB, &maj, 1);
-  ok &= eeprom_write(I2C_ADDR_MBOARD, MBOARD_REV_LSB, &min, 1);
-
-  putstr("\nset_hw_rev\n");
-  if (ok)
-    printf("OK: set h/w rev to %d.%d\n", HW_REV_MAJOR, HW_REV_MINOR);
-  else {
-    printf("FAILED to set h/w rev to %d.%d\n", HW_REV_MAJOR, HW_REV_MINOR);
-    hal_finish();
-    return 0;
-  }
-
-  if(test_sd())
-    puts("SD OK\n");
-  else {
-    puts("SD FAIL\n");
-    //hal_finish();
-    //return 0;
-  }
-  if(test_ram())
-    puts("RAM OK\n");
-  else {
-    puts("RAM FAIL\n");
-    hal_finish();
-    return 0;
-  }
-
-  print_mac_addr(ethernet_mac_addr()->addr);
-  newline();
-
-  clocks_mimo_config(MC_WE_LOCK_TO_SMA);
-
-  while (!clocks_lock_detect()) {
-    puts("No Lock");
-    mdelay(1000);
-  }
-  puts("Clock Locked\n");
-
-}
diff --git a/firmware/microblaze/apps/cruft/burnrev31.c b/firmware/microblaze/apps/cruft/burnrev31.c
deleted file mode 100644
index f6b08d187..000000000
--- a/firmware/microblaze/apps/cruft/burnrev31.c
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_common_v2.h"
-#include "memcpy_wa.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <i2c.h>
-#include <usrp2_i2c_addr.h>
-#include <clocks.h>
-#include "sd.h"
-#include "mdelay.h"
-
-#define HW_REV_MAJOR 3
-#define HW_REV_MINOR 1
-
-int test_ram()
-{
-  int i,j,k;
-  output_regs->ram_page = 1<<10;
-  
-  extram[0] = 0xDEADBEEF;
-  extram[1] = 0xF00D1234;
-  extram[7] = 0x76543210;
-  
-  output_regs->ram_page = 2<<10;
-  extram[7] = 0x55555555;
-  extram[1] = 0xaaaaaaaa;
-  extram[0] = 0xeeeeeeee;
-  
-  output_regs->ram_page = 1<<10;
-  
-  i = extram[0];
-  k = extram[1];
-  j = extram[7];
-  
-  if((i != 0xDEADBEEF)||(j!=0x76543210)||(k!=0xF00D1234)) {
-    puts("RAM FAIL1!\n");
-    puthex32_nl(i);
-    puthex32_nl(j);
-    puthex32_nl(k);
-    return 0;
-  }
-  
-  output_regs->ram_page = 2<<10;
-
-  j = extram[7];
-  k = extram[1];
-  i = extram[0];
-
-  if((i != 0xeeeeeeee)||(j!=0x55555555)||(k!=0xaaaaaaaa)) {
-    puts("RAM FAIL2!\n");
-    puthex32_nl(i);
-    puthex32_nl(j);
-    puthex32_nl(k);
-    return 0;
-  }
-  return 1;
-}
-
-int test_sd()
-{
-  int i = sd_init();
-  if(i==0) {
-    puts("FAILED INIT of Card\n");
-    return 0;
-  }
-  
-  unsigned char buf[512];
-  i = sd_read_block(2048,buf);
-  if(i == 0) {
-    puts("READ Command Rejected\n");
-    return 0;
-  }
-  if((buf[0]==0xb8)&&(buf[1]==0x08)&&(buf[2]==0x00)&&(buf[3]==0x50))
-    ;
-  else {
-    puts("Read bad data from SD Card\n");
-    return 0;
-  }
-  return 1;
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  putstr("\nFactory Test, Board Rev 3.1\n");
-
-  bool ok = true;
-  unsigned char maj = HW_REV_MAJOR;
-  unsigned char min = HW_REV_MINOR;
-  ok = eeprom_write(I2C_ADDR_MBOARD, MBOARD_REV_MSB, &maj, 1);
-  ok &= eeprom_write(I2C_ADDR_MBOARD, MBOARD_REV_LSB, &min, 1);
-
-  putstr("\nset_hw_rev\n");
-  if (ok)
-    printf("OK: set h/w rev to %d.%d\n", HW_REV_MAJOR, HW_REV_MINOR);
-  else {
-    printf("FAILED to set h/w rev to %d.%d\n", HW_REV_MAJOR, HW_REV_MINOR);
-    hal_finish();
-    return 0;
-  }
-
-  if(test_sd())
-    puts("SD OK\n");
-  else {
-    puts("SD FAIL\n");
-    //hal_finish();
-    //return 0;
-  }
-  if(test_ram())
-    puts("RAM OK\n");
-  else {
-    puts("RAM FAIL\n");
-    hal_finish();
-    return 0;
-  }
-
-  print_mac_addr(ethernet_mac_addr()->addr);
-  newline();
-
-  clocks_mimo_config(MC_WE_LOCK_TO_SMA);
-
-  while (!clocks_lock_detect()) {
-    puts("No Lock");
-    mdelay(1000);
-  }
-  puts("Clock Locked\n");
-
-}
diff --git a/firmware/microblaze/apps/cruft/can_i_sub.c b/firmware/microblaze/apps/cruft/can_i_sub.c
deleted file mode 100644
index ed49791f0..000000000
--- a/firmware/microblaze/apps/cruft/can_i_sub.c
+++ /dev/null
@@ -1,25 +0,0 @@
-#include <u2_init.h>
-#include <nonstdio.h>
-
-//typedef long long int64_t;
-
-
-int64_t sub(int64_t a, int64_t b);
-void print(int64_t d);
-
-int main(void)
-{
-  u2_init();
-
-  int64_t d = sub(462550990848000LL, 462028800000000LL);
-  print_uint64(d);
-  newline();
-  return 0;
-}
-
-int64_t sub(int64_t a, int64_t b)
-{
-  return a - b;
-}
-
-
diff --git a/firmware/microblaze/apps/cruft/double_buffer_fragment.c b/firmware/microblaze/apps/cruft/double_buffer_fragment.c
deleted file mode 100644
index cfc061247..000000000
--- a/firmware/microblaze/apps/cruft/double_buffer_fragment.c
+++ /dev/null
@@ -1,138 +0,0 @@
-#if 0
-void 
-double_buffering(int port) {
-  unsigned int localstatus = buffer_pool_status->status;
-
-  if(localstatus & BPS_DONE_0) {
-    bp_clear_buf(0);
-    if(buffer_state[0] == FILLING) {
-      buffer_state[0] = FULL;
-      if(buffer_state[1] == EMPTY) {
-	bp_receive_to_buf(1, 1, 1, 10, 509);  // DSP_RX to buffer 1, use 500 lines
-	buffer_state[1] = FILLING;
-      }
-      else
-	dsp_rx_idle = 1;
-      if(serdes_tx_idle) {
-	serdes_tx_idle = 0;
-	bp_send_from_buf(0, port, 1, 10, 509);  // SERDES_TX from buffer 0
-	buffer_state[0] = EMPTYING;
-      }
-    }
-    else {  // buffer was emptying
-      buffer_state[0] = EMPTY;
-      if(dsp_rx_idle) {
-	dsp_rx_idle = 0;
-	bp_receive_to_buf(0, 1, 1, 10, 509);  // DSP_RX to buffer 0, use 500 lines
-	buffer_state[0] = FILLING;
-      }
-      if(buffer_state[1] == FULL) {
-	bp_send_from_buf(1, port, 1, 10, 509);  // SERDES_TX from buffer 1
-	buffer_state[1] = EMPTYING;
-      }
-      else
-	serdes_tx_idle = 1;
-    }
-    putstr("Int Proc'ed 0\n");
-  }
-
-  if(localstatus & BPS_DONE_1) {
-    bp_clear_buf(1);
-    if(buffer_state[1] == FILLING) {
-      buffer_state[1] = FULL;
-      if(buffer_state[0] == EMPTY) {
-	bp_receive_to_buf(0, 1, 1, 10, 509);  // DSP_RX to buffer 1, use 500 lines
-	buffer_state[0] = FILLING;
-      }
-      else
-	dsp_rx_idle = 1;
-      if(serdes_tx_idle) {
-	serdes_tx_idle = 0;
-	bp_send_from_buf(1, port, 1, 10, 509);  // SERDES_TX from buffer 1
-	buffer_state[1] = EMPTYING;
-      }
-    }
-    else {  // buffer was emptying
-      buffer_state[1] = EMPTY;
-      if(dsp_rx_idle) {
-	dsp_rx_idle = 0;
-	bp_receive_to_buf(1, 1, 1, 10, 509);  // DSP_RX to buffer 1, use 500 lines
-	buffer_state[1] = FILLING;
-      }
-      if(buffer_state[0] == FULL) {
-	bp_send_from_buf(0, port, 1, 10, 509);  // SERDES_TX from buffer 0
-	buffer_state[0] = EMPTYING;
-      }
-      else
-	serdes_tx_idle = 1;
-    }
-  putstr("Int Proc'ed 1\n");
-  }
-
-  if(localstatus & BPS_DONE_2) {
-    bp_clear_buf(2);
-    if(buffer_state[2] == FILLING) {
-      buffer_state[2] = FULL;
-      if(buffer_state[3] == EMPTY) {
-	bp_receive_to_buf(3, port, 1, 5, 504);  // SERDES_RX to buffer 3, use 500 lines
-	buffer_state[3] = FILLING;
-      }
-      else
-	serdes_rx_idle = 1;
-      if(dsp_tx_idle) {
-	dsp_tx_idle = 0;
-	bp_send_from_buf(2, 1, 1, 5, 504);  // DSP_TX from buffer 2
-	buffer_state[2] = EMPTYING;
-      }
-    }
-    else {  // buffer was emptying
-      buffer_state[2] = EMPTY;
-      if(serdes_rx_idle) {
-	serdes_rx_idle = 0;
-	bp_receive_to_buf(2, port, 1, 5, 504);  // SERDES_RX to buffer 2
-	buffer_state[2] = FILLING;
-      }
-      if(buffer_state[3] == FULL) {
-	bp_send_from_buf(3, 1, 1, 5, 504);  // DSP_TX from buffer 3
-	buffer_state[3] = EMPTYING;
-      }
-      else
-	dsp_tx_idle = 1;
-    }
-  putstr("Int Proc'ed 2\n");
-  }
-
-  if(localstatus & BPS_DONE_3) {
-    bp_clear_buf(3);
-    if(buffer_state[3] == FILLING) {
-      buffer_state[3] = FULL;
-      if(buffer_state[2] == EMPTY) {
-	bp_receive_to_buf(2, port, 1, 5, 504);  // SERDES_RX to buffer 2, use 500 lines
-	buffer_state[2] = FILLING;
-      }
-      else
-	serdes_rx_idle = 1;
-      if(dsp_tx_idle) {
-	dsp_tx_idle = 0;
-	bp_send_from_buf(3, 1, 1, 5, 504);  // DSP_TX from buffer 3
-	buffer_state[3] = EMPTYING;
-      }
-    }
-    else {  // buffer was emptying
-      buffer_state[3] = EMPTY;
-      if(serdes_rx_idle) {
-	serdes_rx_idle = 0;
-	bp_receive_to_buf(3, port, 1, 5, 504);  // SERDES_RX to buffer 3
-	buffer_state[3] = FILLING;
-      }
-      if(buffer_state[2] == FULL) {
-	bp_send_from_buf(2, 1, 1, 5, 504);  // DSP_TX from buffer 2
-	buffer_state[2] = EMPTYING;
-      }
-      else
-	dsp_tx_idle = 1;
-    }
-  putstr("Int Proc'ed 3\n");
-  }
-}
-#endif
diff --git a/firmware/microblaze/apps/cruft/eth_serdes.c b/firmware/microblaze/apps/cruft/eth_serdes.c
deleted file mode 100644
index 2d2ddc1ca..000000000
--- a/firmware/microblaze/apps/cruft/eth_serdes.c
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_passthru_v2.h"
-#include "memcpy_wa.h"
-#include "clocks.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-#define FW_SETS_SEQNO	1	// define to 0 or 1 (FIXME must be 1 for now)
-
-#if (FW_SETS_SEQNO)
-static int fw_seqno __attribute__((unused));	// used when f/w is filling in sequence numbers
-#endif
-
-
-/*
- * Full duplex Tx and Rx between ethernet and serdes
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to eth flow
- * Buffers 4 and 5 are used to double-buffer the eth to DSP Tx  eth flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-
-#define	DSP_RX_BUF_0	2	// serdes -> eth (double buffer)
-#define	DSP_RX_BUF_1	3	// serdes -> eth
-#define	DSP_TX_BUF_0	4	// eth -> serdes (double buffer)
-#define	DSP_TX_BUF_1	5	// eth -> serdes
-
-/*
- * ================================================================
- *   configure serdes double buffering state machine (eth -> serdes)
- * ================================================================
- */
-
-
-// Receive from ethernet
-buf_cmd_args_t dsp_tx_recv_args = {
-  PORT_ETH,
-  0,
-  BP_LAST_LINE
-};
-
-// send to serdes
-buf_cmd_args_t dsp_tx_send_args = {
-  PORT_SERDES,
-  0,
-  0			// filled in from last_line register
-};
-
-dbsm_t dsp_tx_sm;	// the state machine
-
-/*
- * ====================================================================
- *   configure serdes RX double buffering state machine (serdes -> eth)
- * ====================================================================
- */
-
-// receive from serdes
-buf_cmd_args_t dsp_rx_recv_args = {
-  PORT_SERDES,
-  0,
-  BP_LAST_LINE
-};
-
-// send to ETH
-buf_cmd_args_t dsp_rx_send_args = {
-  PORT_ETH,
-  0,		// starts with ethernet header in line 0
-  0,		// filled in from list_line register
-};
-
-dbsm_t dsp_rx_sm;	// the state machine
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-// ----------------------------------------------------------------
-
-
-#if (FW_SETS_SEQNO)
-/*
- * Debugging ONLY.  This will be handled by the tx_protocol_engine.
- *
- * This is called when the DSP Rx chain has filled in a packet.
- * We set and increment the seqno, then return false, indicating
- * that we didn't handle the packet.  A bit of a kludge
- * but it should work.
- */
-
-bool 
-fw_sets_seqno_inspector(dbsm_t *sm, int buf_this)	// returns false
-{
-#if 0
-  uint32_t *p = buffer_ram(buf_this);
-  uint32_t last_line = buffer_pool_status->last_line[buf_this] - sm->last_line_adj;
-  printf("fw_sets_seqno_inspector: buf_this = %d, last_line = %d\n",
-	 buf_this, last_line);
-
-  print_buffer(p, (last_line + 1));
-#endif
-
-#if 0
-  uint32_t *p = buffer_ram(buf_this);
-  uint32_t seqno = fw_seqno++;
-
-  // KLUDGE all kinds of nasty magic numbers and embedded knowledge
-  uint32_t t = p[4];
-  t = (t & 0xffff00ff) | ((seqno & 0xff) << 8);
-  p[4] = t;
-#endif
-
-  return false;		// we didn't handle the packet
-}
-#endif
-
-
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  uint32_t  status = buffer_pool_status->status;
-
-  if (0 && (status & ~BPS_IDLE_ALL)){
-    putstr("status = ");
-    puthex32_nl(status);
-  }
-    
-  dbsm_process_status(&dsp_tx_sm, status);
-  dbsm_process_status(&dsp_rx_sm, status);
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  output_regs->led_src = 0x3;		// h/w controls bottom two bits
-  clocks_enable_test_clk(true, 1);
-
-  putstr("\neth <-> serdes\n");
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-  ethernet_init();
-
-  // clocks_mimo_config(MC_WE_LOCK_TO_SMA | MC_PROVIDE_CLK_TO_MIMO);
-  clocks_mimo_config(MC_WE_DONT_LOCK | MC_PROVIDE_CLK_TO_MIMO);
-
-#if 0
-  // make bit 15 of Tx gpio's be a s/w output
-  hal_gpio_set_sel(GPIO_TX_BANK, 15, 's');
-  hal_gpio_set_ddr(GPIO_TX_BANK, 0x8000, 0x8000);
-#endif
-
-#if 1
-  output_regs->debug_mux_ctrl = 1;
-  hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111");
-  hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111");
-  hal_gpio_set_ddr(GPIO_TX_BANK, 0xffff, 0xffff);
-  hal_gpio_set_ddr(GPIO_RX_BANK, 0xffff, 0xffff);
-#endif
-
-
-  // initialize double buffering state machine for ethernet -> serdes
-
-  dbsm_init(&dsp_tx_sm, DSP_TX_BUF_0,
-	    &dsp_tx_recv_args, &dsp_tx_send_args,
-	    eth_pkt_inspector);
-
-
-  // initialize double buffering state machine for serdes -> ethernet
-
-  if (FW_SETS_SEQNO){
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      fw_sets_seqno_inspector);
-  }
-  else {
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      dbsm_nop_inspector);
-  }
-
-  // tell app_common that this dbsm could be sending to the ethernet
-  ac_could_be_sending_to_eth = &dsp_rx_sm;
-
-
-  // kick off the state machines
-  dbsm_start(&dsp_tx_sm);
-  dbsm_start(&dsp_rx_sm);
-
-  //int which = 0;
-
-  while(1){
-    // hal_gpio_write(GPIO_TX_BANK, which, 0x8000);
-    // which ^= 0x8000;
-
-    buffer_irq_handler(0);
-  }
-}
diff --git a/firmware/microblaze/apps/cruft/factory_test.c b/firmware/microblaze/apps/cruft/factory_test.c
deleted file mode 100644
index e1fbb0e40..000000000
--- a/firmware/microblaze/apps/cruft/factory_test.c
+++ /dev/null
@@ -1,438 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_common_v2.h"
-#include "memcpy_wa.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <i2c.h>
-#include <usrp2_i2c_addr.h>
-#include <clocks.h>
-#include "sd.h"
-
-#define FW_SETS_SEQNO	1	// define to 0 or 1 (FIXME must be 1 for now)
-
-#if (FW_SETS_SEQNO)
-static int fw_seqno;	// used when f/w is filling in sequence numbers
-#endif
-
-
-/*
- * Full duplex Tx and Rx between ethernet and DSP pipelines
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to eth flow
- * Buffers 4 and 5 are used to double-buffer the eth to DSP Tx  eth flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-
-#define	DSP_RX_BUF_0	2	// dsp rx -> eth (double buffer)
-#define	DSP_RX_BUF_1	3	// dsp rx -> eth
-#define	DSP_TX_BUF_0	4	// eth -> dsp tx (double buffer)
-#define	DSP_TX_BUF_1	5	// eth -> dsp tx
-
-/*
- * ================================================================
- *   configure DSP TX double buffering state machine (eth -> dsp)
- * ================================================================
- */
-
-// 4 lines of ethernet hdr + 1 line transport hdr + 2 lines (word0 + timestamp)
-// DSP Tx reads word0 (flags) + timestamp followed by samples
-
-#define DSP_TX_FIRST_LINE ((sizeof(u2_eth_hdr_t) + sizeof(u2_transport_hdr_t))/4)
-
-// Receive from ethernet
-buf_cmd_args_t dsp_tx_recv_args = {
-  PORT_ETH,
-  0,
-  BP_LAST_LINE
-};
-
-// send to DSP Tx
-buf_cmd_args_t dsp_tx_send_args = {
-  PORT_DSP,
-  DSP_TX_FIRST_LINE,	// starts just past transport header
-  0			// filled in from last_line register
-};
-
-dbsm_t dsp_tx_sm;	// the state machine
-
-/*
- * ================================================================
- *   configure DSP RX double buffering state machine (dsp -> eth)
- * ================================================================
- */
-
-// 4 lines of ethernet hdr + 1 line transport hdr + 1 line (word0)
-// DSP Rx writes timestamp followed by nlines_per_frame of samples
-#define DSP_RX_FIRST_LINE ((sizeof(u2_eth_hdr_t) + sizeof(u2_transport_hdr_t))/4 + 1)
-
-// receive from DSP
-buf_cmd_args_t dsp_rx_recv_args = {
-  PORT_DSP,
-  DSP_RX_FIRST_LINE,
-  BP_LAST_LINE
-};
-
-// send to ETH
-buf_cmd_args_t dsp_rx_send_args = {
-  PORT_ETH,
-  0,		// starts with ethernet header in line 0
-  0,		// filled in from list_line register
-};
-
-dbsm_t dsp_rx_sm;	// the state machine
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-// variables for streaming mode
-
-static bool         streaming_p = false;
-static unsigned int streaming_items_per_frame = 0;
-static int          streaming_frame_count = 0;
-#define FRAMES_PER_CMD	1000
-
-bool is_streaming(void){ return streaming_p; }
-
-// ----------------------------------------------------------------
-
-
-void
-restart_streaming(void)
-{
-  // setup RX DSP regs
-  dsp_rx_regs->clear_state = 1;			// reset
-
-  streaming_p = true;
-  streaming_frame_count = FRAMES_PER_CMD;
-
-  dsp_rx_regs->rx_command =
-    MK_RX_CMD(FRAMES_PER_CMD * streaming_items_per_frame,
-	      streaming_items_per_frame,
-	      1, 1);			// set "chain" bit
-
-  // kick off the state machine
-  dbsm_start(&dsp_rx_sm);
-
-  dsp_rx_regs->rx_time = 0;		// enqueue first of two commands
-
-  // make sure this one and the rest have the "now" and "chain" bits set.
-  dsp_rx_regs->rx_command =
-    MK_RX_CMD(FRAMES_PER_CMD * streaming_items_per_frame,
-	      streaming_items_per_frame,
-	      1, 1);				
-
-  dsp_rx_regs->rx_time = 0;		// enqueue second command
-}
-
-void
-start_rx_streaming_cmd(const eth_mac_addr_t *host, op_start_rx_streaming_t *p)
-{
-  host_mac_addr = *host;	// remember who we're sending to
-
-  /*
-   * Construct  ethernet header and word0 and preload into two buffers
-   */
-  u2_eth_packet_t	pkt;
-  memset(&pkt, 0, sizeof(pkt));
-  pkt.ehdr.dst = *host;
-  pkt.ehdr.src = *ethernet_mac_addr();
-  pkt.ehdr.ethertype = U2_ETHERTYPE;
-  u2p_set_word0(&pkt.fixed, 0, 0);
-  // DSP RX will fill in timestamp
-
-  memcpy_wa(buffer_ram(DSP_RX_BUF_0), &pkt, sizeof(pkt));
-  memcpy_wa(buffer_ram(DSP_RX_BUF_1), &pkt, sizeof(pkt));
-
-
-  if (FW_SETS_SEQNO)
-    fw_seqno = 0;
-
-  streaming_items_per_frame = p->items_per_frame;
-  restart_streaming();
-}
-
-
-void
-stop_rx_cmd(void)
-{
-  streaming_p = false;
-  dsp_rx_regs->clear_state = 1;	// flush cmd queue
-  bp_clear_buf(DSP_RX_BUF_0);
-  bp_clear_buf(DSP_RX_BUF_1);
-}
-
-
-static void
-setup_tx()
-{
-  dsp_tx_regs->clear_state = 1;
-  bp_clear_buf(DSP_TX_BUF_0);
-  bp_clear_buf(DSP_TX_BUF_1);
-
-  int tx_scale = 256;
-  int interp = 32;
-
-  // setup some defaults
-
-  dsp_tx_regs->freq = 0;
-  dsp_tx_regs->scale_iq = (tx_scale << 16) | tx_scale;
-  dsp_tx_regs->interp_rate = interp;
-}
-
-
-#if (FW_SETS_SEQNO)
-/*
- * Debugging ONLY.  This will be handled by the tx_protocol_engine.
- *
- * This is called when the DSP Rx chain has filled in a packet.
- * We set and increment the seqno, then return false, indicating
- * that we didn't handle the packet.  A bit of a kludge
- * but it should work.
- */
-bool 
-fw_sets_seqno_inspector(dbsm_t *sm, int buf_this)	// returns false
-{
-  uint32_t *p = buffer_ram(buf_this);
-  uint32_t seqno = fw_seqno++;
-
-  // KLUDGE all kinds of nasty magic numbers and embedded knowledge
-  uint32_t t = p[4];
-  t = (t & 0xffff00ff) | ((seqno & 0xff) << 8);
-  p[4] = t;
-
-  // queue up another rx command when required
-  if (streaming_p && --streaming_frame_count == 0){
-    streaming_frame_count = FRAMES_PER_CMD;
-    dsp_rx_regs->rx_time = 0;
-  }
-
-  return false;		// we didn't handle the packet
-}
-#endif
-
-
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  uint32_t  status = buffer_pool_status->status;
-
-  dbsm_process_status(&dsp_tx_sm, status);
-  dbsm_process_status(&dsp_rx_sm, status);
-}
-
-int test_ram()
-{
-  int i,j,k;
-  output_regs->ram_page = 1<<10;
-  
-  extram[0] = 0xDEADBEEF;
-  extram[1] = 0xF00D1234;
-  extram[7] = 0x76543210;
-  
-  output_regs->ram_page = 2<<10;
-  extram[7] = 0x55555555;
-  extram[1] = 0xaaaaaaaa;
-  extram[0] = 0xeeeeeeee;
-  
-  output_regs->ram_page = 1<<10;
-  
-  i = extram[0];
-  k = extram[1];
-  j = extram[7];
-  
-  if((i != 0xDEADBEEF)||(j!=0x76543210)||(k!=0xF00D1234)) {
-    puts("RAM FAIL1!\n");
-    puthex32_nl(i);
-    puthex32_nl(j);
-    puthex32_nl(k);
-    return 0;
-  }
-  
-  output_regs->ram_page = 2<<10;
-
-  j = extram[7];
-  k = extram[1];
-  i = extram[0];
-
-  if((i != 0xeeeeeeee)||(j!=0x55555555)||(k!=0xaaaaaaaa)) {
-    puts("RAM FAIL2!\n");
-    puthex32_nl(i);
-    puthex32_nl(j);
-    puthex32_nl(k);
-    return 0;
-  }
-  return 1;
-}
-
-int test_sd()
-{
-  int i = sd_init();
-  if(i==0) {
-    puts("FAILED INIT of Card\n");
-    return 0;
-  }
-  
-  unsigned char buf[512];
-  i = sd_read_block(2048,buf);
-  if(i == 0) {
-    puts("READ Command Rejected\n");
-    return 0;
-  }
-  if((buf[0]==0xb8)&&(buf[1]==0x08)&&(buf[2]==0x00)&&(buf[3]==0x50))
-    ;
-  else {
-    puts("Read bad data from SD Card\n");
-    return 0;
-  }
-  return 1;
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  putstr("\nFactory Test\n");
-
-  print_mac_addr(ethernet_mac_addr()->addr);
-  newline();
-
-  if(test_sd())
-    puts("SD OK\n");
-  else {
-    puts("SD FAIL\n");
-    //    hal_finish();
-    //return 0;
-  }
-  if(test_ram())
-    puts("RAM OK\n");
-  else {
-    puts("RAM FAIL\n");
-    hal_finish();
-    return 0;
-  }
-
-  print_mac_addr(ethernet_mac_addr()->addr);
-  newline();
-
-  output_regs->led_src = 0x7;  // make bottom 3 controlled by HW
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-  ethernet_init();
-
-  clocks_enable_tx_dboard(true,1);
-  clocks_mimo_config(MC_WE_LOCK_TO_SMA);
-#if 0
-  // make bit 15 of Tx gpio's be a s/w output
-  hal_gpio_set_sel(GPIO_TX_BANK, 15, 's');
-  hal_gpio_set_ddr(GPIO_TX_BANK, 0x8000, 0x8000);
-#endif
-
-  output_regs->debug_mux_ctrl = 1;
-#if 0
-  hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111");
-  hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111");
-  hal_gpio_set_ddr(GPIO_TX_BANK, 0xffff, 0xffff);
-  hal_gpio_set_ddr(GPIO_RX_BANK, 0xffff, 0xffff);
-#endif
-
-
-  // initialize double buffering state machine for ethernet -> DSP Tx
-
-  dbsm_init(&dsp_tx_sm, DSP_TX_BUF_0,
-	    &dsp_tx_recv_args, &dsp_tx_send_args,
-	    eth_pkt_inspector);
-
-
-  // initialize double buffering state machine for DSP RX -> Ethernet
-
-  if (FW_SETS_SEQNO){
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      fw_sets_seqno_inspector);
-  }
-  else {
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      dbsm_nop_inspector);
-  }
-
-  // tell app_common that this dbsm could be sending to the ethernet
-  ac_could_be_sending_to_eth = &dsp_rx_sm;
-
-
-  // program tx registers
-  setup_tx();
-
-  // kick off the state machine
-  dbsm_start(&dsp_tx_sm);
-
-  //int which = 0;
-
-  while(1){
-    // hal_gpio_write(GPIO_TX_BANK, which, 0x8000);
-    // which ^= 0x8000;
-
-    buffer_irq_handler(0);
-
-    int pending = pic_regs->pending;		// poll for under or overrun
-
-    if (pending & PIC_UNDERRUN_INT){
-      dbsm_handle_tx_underrun(&dsp_tx_sm);
-      pic_regs->pending = PIC_UNDERRUN_INT;	// clear interrupt
-      putchar('U');
-    }
-
-    if (pending & PIC_OVERRUN_INT){
-      dbsm_handle_rx_overrun(&dsp_rx_sm);
-      pic_regs->pending = PIC_OVERRUN_INT;	// clear pending interrupt
-
-      // FIXME Figure out how to handle this robustly.
-      // Any buffers that are emptying should be allowed to drain...
-
-      if (streaming_p){
-	// restart_streaming();
-	// FIXME report error
-      }
-      else {
-	// FIXME report error
-      }
-      putchar('O');
-    }
-  }
-}
diff --git a/firmware/microblaze/apps/cruft/gen_eth_packets.c b/firmware/microblaze/apps/cruft/gen_eth_packets.c
deleted file mode 100644
index 4d521f6bf..000000000
--- a/firmware/microblaze/apps/cruft/gen_eth_packets.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "memcpy_wa.h"
-#include "print_rmon_regs.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-// ----------------------------------------------------------------
-
-static eth_mac_addr_t dst_mac_addr =
-  {{  0xff, 0xff, 0xff, 0xff, 0xff, 0xff }};
-
-// ----------------------------------------------------------------
-
-// #define	PACKET_SIZE 1500		// bytes
-// #define ETH_DATA_RATE 1000000		// 1MB/s
-// #define	ETH_PACKET_RATE (ETH_DATA_RATE/PACKET_SIZE)	// 13,3333 pkts/s
-
-// static int timer_delta = MASTER_CLK_RATE/ETH_PACKET_RATE;	// ticks between interrupts
-
-static int timer_delta = (int)(MASTER_CLK_RATE * 1e-3);		// tick at 1 kHz
-static int sim_timer_delta = (int)(MASTER_CLK_RATE * 100e-6);	// tick at 10 kHz
-
-static volatile bool send_packet_now = false;   // timer handler sets this
-static volatile bool link_is_up = false;	// eth handler sets this
-
-int packet_number = 0;
-
-
-#define CPU_TX_BUF	0	// cpu xmits ethernet frames from here
-#define CPU_RX_BUF	1	// receive ethernet frames here
-
-// ----------------------------------------------------------------
-
-/*
- * Called when eth phy state changes (w/ interrupts disabled)
- */
-void
-link_changed_callback(int speed)
-{
-  link_is_up = speed == 0 ? false : true;
-  hal_set_leds(link_is_up ? 0x2 : 0x0, 0x2);
-  printf("\neth link changed: speed = %d\n", speed);
-}
-
-void
-timer_irq_handler(unsigned irq)
-{
-  hal_set_timeout(timer_delta);	// schedule next timeout
-  send_packet_now = 1;
-}
-
-
-static void
-init_packet(int *buf, const u2_eth_packet_t *pkt, int bufnum)
-{
-  int i = 0;
-  int mark = ((bufnum & 0xff) << 24) | 0x005A0000;
-
-  for (i = 0; i < BP_NLINES; i++){
-    buf[i] = mark | i;
-    mark ^= 0x00FF0000;
-  }
-
-  // copy header into buffer
-  memcpy_wa(buf, pkt, sizeof(*pkt));
-}
-
-static void
-init_packets(void)
-{
-  u2_eth_packet_t	pkt __attribute__((aligned (4)));
-
-  memset(&pkt, 0, sizeof(pkt));
-
-  pkt.ehdr.dst = dst_mac_addr;
-  pkt.ehdr.src = *ethernet_mac_addr();
-  pkt.ehdr.ethertype = U2_ETHERTYPE;
-  pkt.fixed.word0 = 0x01234567;
-  pkt.fixed.timestamp = 0xffffffff;
-
-  // init just the one we're using
-  init_packet((void *)buffer_ram(CPU_TX_BUF), &pkt, CPU_TX_BUF);
-}
-
-int
-main(void)
-{
-  int npackets_sent = 0;
-
-  u2_init();
-
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  //hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111");
-  //hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111");
-
-  putstr("\ngen_eth_packets\n");
-  
-  hal_set_leds(0x0, 0x3);
-
-  init_packets();
-
-  pic_register_handler(IRQ_TIMER, timer_irq_handler);
-
-  if (hwconfig_simulation_p())
-    timer_delta = sim_timer_delta;
-
-  hal_set_timeout(timer_delta);
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-  ethernet_init();
-
-  /*
-  if (hwconfig_simulation_p()){
-    eth_mac->speed = 4;	// hardcode mac speed to 1000
-    link_is_up = true;
-  }
-  */
-
-  // fire off a receive from the ethernet
-  bp_receive_to_buf(CPU_RX_BUF, PORT_ETH, 1, 0, BP_LAST_LINE);
-
-  while(1){
-    uint32_t status = buffer_pool_status->status;
-
-    if (status & (BPS_DONE(CPU_RX_BUF) | BPS_ERROR(CPU_RX_BUF))){
-      bp_clear_buf(CPU_RX_BUF);
-      // ignore incoming ethernet packets; they were looped back in sim
-      bp_receive_to_buf(CPU_RX_BUF, PORT_ETH, 1, 0, BP_LAST_LINE);
-    }
-
-    if (status & (BPS_DONE(CPU_TX_BUF) | BPS_ERROR(CPU_TX_BUF))){
-      if (status & BPS_ERROR(CPU_TX_BUF)){
-	putchar('E');
-      }
-      bp_clear_buf(CPU_TX_BUF);
-      npackets_sent++;
-      if ((npackets_sent & 0xF) == 0){	// print after every 16 packets
-	//print_rmon_regs();
-	putchar('.');
-      }
-    }
-
-    if (link_is_up && send_packet_now && (status & BPS_IDLE(CPU_TX_BUF))){
-      send_packet_now = false;
-
-      // kick off the next packet
-      // FIXME set packet number in packet
-
-      bp_send_from_buf(CPU_TX_BUF, PORT_ETH, 1, 0, 255);	// 1KB total
-      hal_toggle_leds(0x1);
-    }
-  }
-
-  hal_finish();
-  return 1;
-}
diff --git a/firmware/microblaze/apps/cruft/gen_pause_frames.c b/firmware/microblaze/apps/cruft/gen_pause_frames.c
deleted file mode 100644
index 0f81dafff..000000000
--- a/firmware/microblaze/apps/cruft/gen_pause_frames.c
+++ /dev/null
@@ -1,207 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "u2_eth_packet.h"
-#include "memcpy_wa.h"
-#include <stddef.h>
-#include <stdlib.h>
-
-
-// ----------------------------------------------------------------
-
-unsigned char dst_mac_addr[6] = {
-  0xff, 0xff, 0xff, 0xff, 0xff, 0xff
-};
-
-// ----------------------------------------------------------------
-
-// #define	PACKET_SIZE 1500		// bytes
-// #define ETH_DATA_RATE 1000000		// 1MB/s
-// #define	ETH_PACKET_RATE (ETH_DATA_RATE/PACKET_SIZE)	// 13,3333 pkts/s
-
-// static int timer_delta = MASTER_CLK_RATE/ETH_PACKET_RATE;	// ticks between interrupts
-
-static int timer_delta = MASTER_CLK_RATE/1000;	// tick at 1kHz
-
-static volatile bool send_packet_now = false;   // timer handler sets this
-static volatile bool link_is_up = false;	// eth handler sets this
-
-int packet_number = 0;
-
-// ----------------------------------------------------------------
-
-// debugging output on tx pins
-#define LS_MASK  0xE0000
-#define LS_1000  0x80000
-#define LS_100   0x40000
-#define LS_10    0x20000
-
-
-/*
- * Called when eth phy state changes (w/ interrupts disabled)
- */
-void
-link_changed_callback(int speed)
-{
-  int v = 0;
-  switch(speed){
-  case 10:
-    v = LS_10;
-    link_is_up = true;
-    break;
-    
-  case 100:
-    v = LS_100;
-    link_is_up = true;
-    break;
-    
-  case 1000:
-    v = LS_100;
-    link_is_up = true;
-    break;
-
-  default:
-    v = 0;
-    link_is_up = false;
-    break;
-  }
-
-  hal_gpio_set_tx(v, LS_MASK);	/* set debug bits on d'board */
-
-  putstr("\neth link changed: speed = ");
-  puthex16_nl(speed);
-}
-
-void
-timer_irq_handler(unsigned irq)
-{
-  hal_set_timeout(timer_delta);	// schedule next timeout
-  send_packet_now = 1;
-}
-
-
-void
-buffer_irq_handler(unsigned irq)
-{
-  // FIXME
-}
-
-static void
-init_packet(int *buf, const u2_eth_packet_t *pkt, int bufnum)
-{
-  int i = 0;
-  int mark = ((bufnum & 0xff) << 24) | 0x005A0000;
-
-  for (i = 0; i < BP_NLINES; i++){
-    buf[i] = mark | i;
-    mark ^= 0x00FF0000;
-  }
-
-  // copy header into buffer
-  memcpy_wa(buf, pkt, sizeof(*pkt));
-}
-
-static void
-init_packets(void)
-{
-  int	i;
-  
-  u2_eth_packet_t	pkt __attribute__((aligned (4)));
-
-  for (i = 0; i < 6; i++){
-    pkt.ehdr.dst.addr[i] = dst_mac_addr[i];
-  }
-  pkt.ehdr.src = *ethernet_mac_addr();
-  pkt.ehdr.ethertype = U2_ETHERTYPE;
-
-  // fill ALL buffers for debugging
-  for (i = 0; i < 8; i++)
-    init_packet((void *)buffer_ram(i), &pkt, i);
-}
-
-static int led_counter = 0;
-
-int
-main(void)
-{
-  int send_pause = 1;
-  
-  u2_init();
-
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  //hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111");
-  //hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111");
-
-  putstr("\ngen_eth_packets\n");
-  
-  // Control LEDs
-  output_regs->leds = 0x00;
-
-  init_packets();
-
-  // pic_register_handler(IRQ_BUFFER, buffer_irq_handler);  // poll for now
-  pic_register_handler(IRQ_TIMER, timer_irq_handler);
-  hal_set_timeout(timer_delta);
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-
-  ethernet_init();
-
-  eth_mac->pause_frame_send_en = 1;
-  eth_mac->pause_quanta_set = 16384 / 512;
-
-  // eth_mac->speed = 4;	// FIXME hardcode mac speed to 1000
-
-  while(1){
-    if (link_is_up && send_packet_now){
-      send_packet_now = false;
-
-
-      if (send_pause)
-	eth_mac->xon_cpu = 1;
-      else
-	eth_mac->xon_cpu = 0;
-
-      send_pause ^= 1;
-
-      // kick off the next packet
-      // FIXME set packet number in packet
-
-#if 0
-      bp_send_from_buf(0, PORT_ETH, 1, 0, 255);	// 1KB total
-
-      while ((buffer_pool_status->status & (BPS_DONE_0|BPS_ERROR_0)) == 0)
-	;
-      bp_clear_buf(0);
-#endif
-
-      output_regs->leds = ((++led_counter) & 0x1) | (link_is_up ? 0x2 : 0x0);
-    }
-  }
-
-  hal_finish();
-  return 1;
-}
diff --git a/firmware/microblaze/apps/cruft/hello.c b/firmware/microblaze/apps/cruft/hello.c
deleted file mode 100644
index bce843093..000000000
--- a/firmware/microblaze/apps/cruft/hello.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "u2_init.h"
-#include "stdio.h"
-
-int
-main(void)
-{
-  u2_init();
-
-  puts("Hello World");
-  puts("Goodbye World");
-
-  return 0;
-}
diff --git a/firmware/microblaze/apps/cruft/ibs_rx_test.c b/firmware/microblaze/apps/cruft/ibs_rx_test.c
deleted file mode 100644
index bdc04747e..000000000
--- a/firmware/microblaze/apps/cruft/ibs_rx_test.c
+++ /dev/null
@@ -1,82 +0,0 @@
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "nonstdio.h"
-
-#define PORT 2    // ethernet = 2, serdes = 0
-int dsp_rx_buf, dsp_tx_buf, serdes_rx_buf, serdes_tx_buf;
-int dsp_rx_idle, dsp_tx_idle, serdes_rx_idle, serdes_tx_idle;
-
-int buffer_state[4];
-
-static void __attribute__((unused))
-wait_until_status_nonzero(void) 
-{
-  while (buffer_pool_status->status == 0)
-    ;
-}
-
-int
-main(void)
-{
-  int i;
-  
-  u2_init();
-
-  output_regs->adc_ctrl = 0x0A;
-
-  dsp_rx_regs->freq = 0;
-  dsp_rx_regs->scale_iq = (1 << 16) | 1;
-  dsp_rx_regs->decim_rate = 8;
-
-  volatile unsigned int *buffer0 = buffer_ram(0);
-  volatile unsigned int *buffer1 = buffer_ram(1);
-  volatile unsigned int *buffer2 = buffer_ram(2);
-  
-  putstr("Starting RX\n");
-  bp_clear_buf(0);
-  bp_receive_to_buf(0, 1, 1, 0, 99);
-
-  dsp_rx_regs->rx_command = (50 << 9) | 100;   // Numlines, lines per frame
-  dsp_rx_regs->rx_time = 0x2000;
-
-  dsp_rx_regs->rx_command = (137 << 9) | 50;   // Numlines, lines per frame
-  dsp_rx_regs->rx_time = 0x2200;
-
-  while (buffer_pool_status->status == 0)
-    ;
-  bp_clear_buf(0);
-  bp_clear_buf(1);
-  bp_receive_to_buf(1, 1, 1, 0, 99);
-  while (buffer_pool_status->status == 0)
-    ;
-  bp_clear_buf(2);
-  bp_receive_to_buf(2, 1, 1, 0, 99);
-  while (buffer_pool_status->status == 0)
-    ;
-  
-  for(i=0;i<100;i++) {
-    puthex(i);
-    putstr("   ");
-    puthex_nl(buffer0[i]);
-  }
-  for(i=0;i<60;i++) {
-    puthex(i);
-    putstr("   ");
-    puthex_nl(buffer1[i]);
-  }
-  for(i=0;i<60;i++) {
-    puthex(i);
-    putstr("   ");
-    puthex_nl(buffer2[i]);
-  }
-  //while(timer_regs -> time < 0x6000)
-  //  {}
-
-  putstr("Done\n");
-  hal_finish();
-  
-  return 1;
-}
diff --git a/firmware/microblaze/apps/cruft/ibs_tx_test.c b/firmware/microblaze/apps/cruft/ibs_tx_test.c
deleted file mode 100644
index ff9446d92..000000000
--- a/firmware/microblaze/apps/cruft/ibs_tx_test.c
+++ /dev/null
@@ -1,160 +0,0 @@
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "nonstdio.h"
-
-// Globals
-#define EMPTY 0
-#define FILLING 1
-#define FULL 2
-#define EMPTYING 3
-
-#define PORT 2    // ethernet = 2, serdes = 0
-int dsp_rx_buf, dsp_tx_buf, serdes_rx_buf, serdes_tx_buf;
-int dsp_rx_idle, dsp_tx_idle, serdes_rx_idle, serdes_tx_idle;
-
-int buffer_state[4];
-
-static void
-wait_until_status_nonzero(void)
-{
-  while (buffer_pool_status->status == 0)
-    ;
-}
-
-int
-main(void)
-{
-  int i;
-  
-  u2_init();
-  
-  dsp_tx_regs->freq = 0;
-  dsp_tx_regs->scale_iq = (1 << 16) | 1;
-  dsp_tx_regs->interp_rate = 8;
-
-  // Write data to be sent into the first buffer
-  volatile unsigned int *buffer0 = buffer_ram(0);
-  volatile unsigned int *buffer1 = buffer_ram(1);
-  
-
-  putstr("Starting to fill in RAM\n");
-  for(i=0;i<512;i++) 
-    buffer0[i] = i;
-  putstr("Filled in RAM\n");
-  
-  buffer0[0] = 7; // start and end of buffer, send immediately
-  buffer0[1] = 0x0000;  // start time
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 1, 1, 0, 9);
-  while (buffer_pool_status->status == 0)
-    ;
-  while(timer_regs -> time < 0x6000)
-    {}
-
-  buffer0[0] = 3; // start and end of buffer
-  buffer0[1] = 0x8000;  // start time
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 1, 1, 0, 9);
-  while (buffer_pool_status->status == 0)
-    ;
-  while(timer_regs -> time < 0x8400)
-    {}
-
-  buffer0[0] = 3; // start and end of buffer
-  buffer0[1] = 0x8800;  // start time
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 1, 1, 0, 9);
-  while (buffer_pool_status->status == 0)
-    ;
-  while(timer_regs -> time < 0x9000)
-    {}
-
-  buffer0[0] = 0x2;  // not last
-  buffer0[1] = 0x9100;  // start time
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 1, 1, 0, 9);
-  while (buffer_pool_status->status == 0)
-    ;
-  buffer0[0] = 0x1;  // last
-  buffer0[1] = 0x0000;  // start time
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 1, 1, 0, 9);
-  while (buffer_pool_status->status == 0)
-    ;
-
-  
-  buffer0[0] = 0x3;  // first and last
-  buffer0[1] = 0x8000;  // Time in the past
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 1, 1, 0, 9);
-  while (buffer_pool_status->status == 0)
-    ;
-
-  /*
-  buffer0[0] = 0x2; // not last
-  buffer0[1] = 0x9600;  // start time
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 1, 1, 0, 9);
-  while (buffer_pool_status->status == 0)
-    ;
-  */
-
-  while(timer_regs -> time < 0xa000)
-    {}
-
-  putstr("Done\n");
-
-  while(1)
-    {}
-  hal_finish();
-  
-  // Send a bunch, let them pile up in FIFO
-  bp_send_from_buf(0, 2, 1, 21, 80);    wait_until_status_nonzero();
-  bp_clear_buf(0);
-  putstr("First add'l TX done\n");
-  bp_send_from_buf(0, 2, 1, 81, 288);   wait_until_status_nonzero();
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 2, 1, 289, 292);  wait_until_status_nonzero();
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 2, 1, 293, 326);  wait_until_status_nonzero();
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 2, 1, 327, 399);  wait_until_status_nonzero();
-  bp_clear_buf(0);
-  bp_send_from_buf(0, 2, 1, 400, 511);  wait_until_status_nonzero();
-  bp_clear_buf(0);
-  putstr("All add'l TX done\n");
-  
-  bp_receive_to_buf(1, 2, 1, 21, 80);   wait_until_status_nonzero();
-  bp_clear_buf(1);
-  putstr("First add'l RX done\n");
-  bp_receive_to_buf(1, 2, 1, 81, 288);  wait_until_status_nonzero();
-  bp_clear_buf(1);
-  bp_receive_to_buf(1, 2, 1, 289, 292); wait_until_status_nonzero();
-  bp_clear_buf(1);
-  bp_receive_to_buf(1, 2, 1, 293, 326); wait_until_status_nonzero();
-  bp_clear_buf(1);
-  bp_receive_to_buf(1, 2, 1, 327, 399); wait_until_status_nonzero();
-  bp_clear_buf(1);
-  bp_receive_to_buf(1, 2, 1, 400, 511); wait_until_status_nonzero();
-  bp_clear_buf(1);
-  putstr("All add'l RX done\n");
-
-  for(i=0;i<512;i++)
-    if(buffer0[i] != buffer1[i]) {
-      putstr("ERROR at location: ");
-      puthex_nl(i);
-      putstr("Value sent: ");
-      puthex_nl(buffer0[i]);
-      putstr("Value rcvd: ");
-      puthex_nl(buffer1[i]);
-      //break;
-    }
-  
-  putstr("Done Testing\n");
-  
-  hal_finish();
-  return 1;
-}
diff --git a/firmware/microblaze/apps/cruft/mimo_app_common_v2.c b/firmware/microblaze/apps/cruft/mimo_app_common_v2.c
deleted file mode 100644
index 5dbecb0d0..000000000
--- a/firmware/microblaze/apps/cruft/mimo_app_common_v2.c
+++ /dev/null
@@ -1,582 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2007,2008,2009 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "mimo_app_common_v2.h"
-#include "buffer_pool.h"
-#include "memcpy_wa.h"
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "print_rmon_regs.h"
-#include "db.h"
-#include "db_base.h"
-#include "clocks.h"
-#include "u2_init.h"
-#include <string.h>
-
-volatile bool link_is_up = false;	// eth handler sets this
-int cpu_tx_buf_dest_port = PORT_ETH;
-
-// If this is non-zero, this dbsm could be writing to the ethernet
-dbsm_t *ac_could_be_sending_to_eth;
-
-static unsigned char exp_seqno __attribute__((unused)) = 0;
-
-void abort(void);
-
-static bool
-burn_mac_addr(const op_burn_mac_addr_t *p)
-{
-  return ethernet_set_mac_addr(&p->addr);
-}
-
-static bool
-sync_to_pps(const op_generic_t *p)
-{
-  timesync_regs->sync_on_next_pps = 1;
-  putstr("SYNC to PPS\n");
-  return true;
-}
-
-static bool
-config_mimo_cmd(const op_config_mimo_t *p)
-{
-  clocks_mimo_config(p->flags);
-  return true;
-}
-
-void
-set_reply_hdr(u2_eth_packet_t *reply_pkt, u2_eth_packet_t const *cmd_pkt)
-{
-  reply_pkt->ehdr.dst = cmd_pkt->ehdr.src;
-  reply_pkt->ehdr.src = *ethernet_mac_addr();
-  reply_pkt->ehdr.ethertype = U2_ETHERTYPE;
-  reply_pkt->thdr.flags = 0;
-  reply_pkt->thdr.fifo_status = 0;	// written by protocol engine
-  reply_pkt->thdr.seqno = 0;		// written by protocol engine
-  reply_pkt->thdr.ack = 0;		// written by protocol engine
-  u2p_set_word0(&reply_pkt->fixed, 0, CONTROL_CHAN);
-  reply_pkt->fixed.timestamp = timer_regs->time;
-}
-
-static void
-send_reply(unsigned char *reply, size_t reply_len)
-{
-  if (reply_len < 64)
-    reply_len = 64;
-
-  // wait for buffer to become idle
-  hal_set_leds(0x4, 0x4);
-  while((buffer_pool_status->status & BPS_IDLE(CPU_TX_BUF)) == 0)
-    ;
-  hal_set_leds(0x0, 0x4);
-
-  // copy reply into CPU_TX_BUF
-  memcpy_wa(buffer_ram(CPU_TX_BUF), reply, reply_len);
-
-  // wait until nobody else is sending to the ethernet
-  if (ac_could_be_sending_to_eth){
-    hal_set_leds(0x8, 0x8);
-    dbsm_wait_for_opening(ac_could_be_sending_to_eth);
-    hal_set_leds(0x0, 0x8);
-  }
-
-  if (0){
-    printf("sending_reply to port %d, len = %d\n", cpu_tx_buf_dest_port, (int)reply_len);
-    print_buffer(buffer_ram(CPU_TX_BUF), reply_len/4);
-  }
-
-  // fire it off
-  bp_send_from_buf(CPU_TX_BUF, cpu_tx_buf_dest_port, 1, 0, reply_len/4);
-
-  // wait for it to complete (not long, it's a small pkt)
-  while((buffer_pool_status->status & (BPS_DONE(CPU_TX_BUF) | BPS_ERROR(CPU_TX_BUF))) == 0)
-    ;
-
-  bp_clear_buf(CPU_TX_BUF);
-}
-
-
-static size_t
-op_id_cmd(const op_generic_t *p,
-	  void *reply_payload, size_t reply_payload_space)
-{
-  op_id_reply_t *r = (op_id_reply_t *) reply_payload;
-  if (reply_payload_space < sizeof(*r))	// no room
-    return 0;
-
-  // Build reply subpacket
-
-  r->opcode = OP_ID_REPLY;
-  r->len = sizeof(op_id_reply_t);
-  r->rid = p->rid;
-  r->addr = *ethernet_mac_addr();
-  r->hw_rev = (u2_hw_rev_major << 8) | u2_hw_rev_minor;
-  // r->fpga_md5sum = ;	// FIXME
-  // r->sw_md5sum = ;	// FIXME
-
-  return r->len;
-}
-
-
-static size_t
-config_tx_v2_cmd(const op_config_tx_v2_t *p,
-		 void *reply_payload, size_t reply_payload_space)
-{
-  op_config_tx_reply_v2_t *r = (op_config_tx_reply_v2_t *) reply_payload;
-  if (reply_payload_space < sizeof(*r))
-    return 0;					// no room
-
-  struct tune_result	tune_result;
-  memset(&tune_result, 0, sizeof(tune_result));
-
-  bool ok = true;
-  
-#if 0
-  if (p->valid & CFGV_GAIN){
-    ok &= db_set_gain(tx_dboard, p->gain);
-  }
-
-  if (p->valid & CFGV_FREQ){
-    bool was_streaming = is_streaming();
-    if (was_streaming)
-      stop_rx_cmd();
-    
-    u2_fxpt_freq_t f = u2_fxpt_freq_from_hilo(p->freq_hi, p->freq_lo);
-    bool tune_ok = db_tune(tx_dboard, f, &tune_result);
-    ok &= tune_ok;
-    print_tune_result("Tx", tune_ok, f, &tune_result);
-
-    if (was_streaming)
-      restart_streaming();
-  }
-
-  if (p->valid & CFGV_INTERP_DECIM){
-    int interp = p->interp;
-    int hb1 = 0;
-    int hb2 = 0;
-
-    if (!(interp & 1)){
-      hb2 = 1;
-      interp = interp >> 1;
-    }
-
-    if (!(interp & 1)){
-      hb1 = 1;
-      interp = interp >> 1;
-    }
-    
-    if (interp < MIN_CIC_INTERP || interp > MAX_CIC_INTERP)
-      ok = false;
-    else {
-      dsp_tx_regs->interp_rate = (hb1<<9) | (hb2<<8) | interp;
-      // printf("Interp: %d, register %d\n", p->interp, (hb1<<9) | (hb2<<8) | interp);
-    }
-  }
-
-  if (p->valid & CFGV_SCALE_IQ){
-    dsp_tx_regs->scale_iq = p->scale_iq;
-  }
-#endif
-
-  // Build reply subpacket
-
-  r->opcode = OP_CONFIG_TX_REPLY_V2;
-  r->len = sizeof(*r);
-  r->rid = p->rid;
-  r->ok = ok;
-  r->inverted = tune_result.inverted;
-  r->baseband_freq_hi = u2_fxpt_freq_hi(tune_result.baseband_freq);
-  r->baseband_freq_lo = u2_fxpt_freq_lo(tune_result.baseband_freq);
-  r->duc_freq_hi = u2_fxpt_freq_hi(tune_result.dxc_freq);
-  r->duc_freq_lo = u2_fxpt_freq_lo(tune_result.dxc_freq);
-  r->residual_freq_hi = u2_fxpt_freq_hi(tune_result.residual_freq);
-  r->residual_freq_lo = u2_fxpt_freq_lo(tune_result.residual_freq);
-  return r->len;
-}
-
-static size_t
-config_rx_v2_cmd(const op_config_rx_v2_t *p, 
-		 void *reply_payload, size_t reply_payload_space)
-{
-  op_config_rx_reply_v2_t *r = (op_config_rx_reply_v2_t *) reply_payload;
-  if (reply_payload_space < sizeof(*r))
-    return 0;				// no room
-
-  struct tune_result	tune_result;
-  memset(&tune_result, 0, sizeof(tune_result));
-
-  bool ok = true;
-  
-  if (p->valid & CFGV_GAIN){
-    ok &= db_set_gain(rx_dboard, p->gain);
-  }
-
-  if (p->valid & CFGV_FREQ){
-    bool was_streaming = is_streaming();
-    if (was_streaming)
-      stop_rx_cmd();
-    
-    u2_fxpt_freq_t f = u2_fxpt_freq_from_hilo(p->freq_hi, p->freq_lo);
-    bool tune_ok = db_tune(rx_dboard, f, &tune_result);
-    ok &= tune_ok;
-    print_tune_result("Rx", tune_ok, f, &tune_result);
-
-    if (was_streaming)
-      restart_streaming();
-  }
-
-  if (p->valid & CFGV_INTERP_DECIM){
-    int decim = p->decim;
-    int hb1 = 0;
-    int hb2 = 0;
-    
-    if(!(decim & 1)) {
-      hb2 = 1;
-      decim = decim >> 1;
-    }
-    
-    if(!(decim & 1)) {
-      hb1 = 1;
-      decim = decim >> 1;
-    }
-    
-    if (decim < MIN_CIC_DECIM || decim > MAX_CIC_DECIM)
-      ok = false;
-    else {
-      dsp_rx_regs->decim_rate = (hb1<<9) | (hb2<<8) | decim;
-      // printf("Decim: %d, register %d\n", p->decim, (hb1<<9) | (hb2<<8) | decim);
-    }
-  }
-
-  if (p->valid & CFGV_SCALE_IQ){
-    dsp_rx_regs->scale_iq = p->scale_iq;
-  }
-
-  // Build reply subpacket
-
-  r->opcode = OP_CONFIG_RX_REPLY_V2;
-  r->len = sizeof(*r);
-  r->rid = p->rid;
-  r->ok = ok;
-  r->inverted = tune_result.inverted;
-  r->baseband_freq_hi = u2_fxpt_freq_hi(tune_result.baseband_freq);
-  r->baseband_freq_lo = u2_fxpt_freq_lo(tune_result.baseband_freq);
-  r->ddc_freq_hi = u2_fxpt_freq_hi(tune_result.dxc_freq);
-  r->ddc_freq_lo = u2_fxpt_freq_lo(tune_result.dxc_freq);
-  r->residual_freq_hi = u2_fxpt_freq_hi(tune_result.residual_freq);
-  r->residual_freq_lo = u2_fxpt_freq_lo(tune_result.residual_freq);
-
-  return r->len;
-}
-
-static size_t
-read_time_cmd(const op_generic_t *p,
-	      void *reply_payload, size_t reply_payload_space)
-{
-  op_read_time_reply_t *r = (op_read_time_reply_t *) reply_payload;
-  if (reply_payload_space < sizeof(*r))		
-    return 0;					// no room
-
-  r->opcode = OP_READ_TIME_REPLY;
-  r->len = sizeof(*r);
-  r->rid = p->rid;
-  r->time = timer_regs->time;
-
-  return r->len;
-}
-
-static void
-fill_db_info(u2_db_info_t *p, const struct db_base *db)
-{
-  p->dbid = db->dbid;
-  p->freq_min_hi = u2_fxpt_freq_hi(db->freq_min);
-  p->freq_min_lo = u2_fxpt_freq_lo(db->freq_min);
-  p->freq_max_hi = u2_fxpt_freq_hi(db->freq_max);
-  p->freq_max_lo = u2_fxpt_freq_lo(db->freq_max);
-  p->gain_min = db->gain_min;
-  p->gain_max = db->gain_max;
-  p->gain_step_size = db->gain_step_size;
-}
-
-static size_t
-dboard_info_cmd(const op_generic_t *p,
-		void *reply_payload, size_t reply_payload_space)
-{
-  op_dboard_info_reply_t *r = (op_dboard_info_reply_t *) reply_payload;
-  if (reply_payload_space < sizeof(*r))		
-    return 0;					// no room
-
-  r->opcode = OP_DBOARD_INFO_REPLY;
-  r->len = sizeof(*r);
-  r->rid = p->rid;
-  r->ok = true;
-
-  fill_db_info(&r->tx_db_info, tx_dboard);
-  fill_db_info(&r->rx_db_info, rx_dboard);
-
-  return r->len;
-}
-
-static size_t
-peek_cmd(const op_peek_t *p,
-	 void *reply_payload, size_t reply_payload_space)
-{
-  op_generic_t *r = (op_generic_t *) reply_payload;
-
-  putstr("peek: addr="); puthex32(p->addr);
-  printf(" bytes=%u\n", p->bytes);
-
-  if ((reply_payload_space < (sizeof(*r) + p->bytes)) ||
-      p->bytes > MAX_SUBPKT_LEN - sizeof(op_generic_t)) {
-    putstr("peek: insufficient reply packet space\n");
-    return 0;			// FIXME do partial read?
-  }
-
-  r->opcode = OP_PEEK_REPLY;
-  r->len = sizeof(*r)+p->bytes;
-  r->rid = p->rid;
-  r->ok = true;
-
-  memcpy_wa(reply_payload+sizeof(*r), (void *)p->addr, p->bytes);
-
-  return r->len;
-}
-
-static bool
-poke_cmd(const op_poke_t *p)
-{
-  int bytes = p->len - sizeof(*p);
-  putstr("poke: addr="); puthex32(p->addr);
-  printf(" bytes=%u\n", bytes);
-
-  uint8_t *src = (uint8_t *)p + sizeof(*p);
-  memcpy_wa((void *)p->addr, src, bytes);
-
-  return true;
-}
-
-static size_t
-generic_reply(const op_generic_t *p,
-	      void *reply_payload, size_t reply_payload_space,
-	      bool ok)
-{
-  op_generic_t *r = (op_generic_t *) reply_payload;
-  if (reply_payload_space < sizeof(*r))		
-    return 0;					// no room
-
-  r->opcode = p->opcode | OP_REPLY_BIT;
-  r->len = sizeof(*r);
-  r->rid = p->rid;
-  r->ok = ok;
-
-  return r->len;
-}
-
-static size_t
-add_eop(void *reply_payload, size_t reply_payload_space)
-{
-  op_generic_t *r = (op_generic_t *) reply_payload;
-  if (reply_payload_space < sizeof(*r))		
-    return 0;					// no room
-
-  r->opcode = OP_EOP;
-  r->len = sizeof(*r);
-  r->rid = 0;
-  r->ok =  0;
-
-  return r->len;
-}
-
-void
-handle_control_chan_frame(u2_eth_packet_t *pkt, size_t len)
-{
-  unsigned char reply[sizeof(u2_eth_packet_t) + 4 * sizeof(u2_subpkt_t)] _AL4;
-  unsigned char *reply_payload = &reply[sizeof(u2_eth_packet_t)];
-  int reply_payload_space = sizeof(reply) - sizeof(u2_eth_packet_t);
-
-  // initialize reply
-  memset(reply, 0, sizeof(reply));
-  set_reply_hdr((u2_eth_packet_t *) reply, pkt);
-
-  // point to beginning of payload (subpackets)
-  unsigned char *payload = ((unsigned char *) pkt) + sizeof(u2_eth_packet_t);
-  int payload_len = len - sizeof(u2_eth_packet_t);
-
-  size_t subpktlen = 0;
-
-  while (payload_len >= sizeof(op_generic_t)){
-    const op_generic_t *gp = (const op_generic_t *) payload;
-    subpktlen = 0;
-
-    // printf("\nopcode = %d\n", gp->opcode);
-
-    switch(gp->opcode){
-    case OP_EOP:		// end of subpackets
-      goto end_of_subpackets;
-
-    case OP_ID:
-      subpktlen = op_id_cmd(gp, reply_payload, reply_payload_space);
-      break;
-    
-    case OP_CONFIG_TX_V2:
-      subpktlen = config_tx_v2_cmd((op_config_tx_v2_t *) payload,
-				   reply_payload, reply_payload_space);
-      break;
-
-    case OP_CONFIG_RX_V2:
-      subpktlen = config_rx_v2_cmd((op_config_rx_v2_t *) payload,
-				   reply_payload, reply_payload_space);
-      break;
-
-    case OP_START_RX_STREAMING:
-      start_rx_streaming_cmd(&pkt->ehdr.src, (op_start_rx_streaming_t *) payload);
-      subpktlen = generic_reply(gp, reply_payload, reply_payload_space, true);
-      break;
-    
-    case OP_STOP_RX:
-      stop_rx_cmd();
-      subpktlen = generic_reply(gp, reply_payload, reply_payload_space, true);
-      break;
-    
-    case OP_BURN_MAC_ADDR:
-      subpktlen = generic_reply(gp, reply_payload, reply_payload_space,
-				burn_mac_addr((op_burn_mac_addr_t *) payload));
-      break;
-
-    case OP_CONFIG_MIMO:
-      subpktlen = generic_reply(gp, reply_payload, reply_payload_space,
-				config_mimo_cmd((op_config_mimo_t *) payload));
-      break;
-
-    case OP_READ_TIME:
-      subpktlen = read_time_cmd(gp, reply_payload, reply_payload_space);
-      break;
-
-    case OP_DBOARD_INFO:
-      subpktlen = dboard_info_cmd(gp, reply_payload, reply_payload_space);
-      break;
-
-    case OP_SYNC_TO_PPS:
-      subpktlen = generic_reply(gp, reply_payload, reply_payload_space,
-				sync_to_pps((op_generic_t *) payload));
-      break;
-
-    case OP_PEEK:
-      subpktlen = peek_cmd((op_peek_t *)payload, reply_payload, reply_payload_space);
-      break;
-
-    case OP_POKE:
-      subpktlen = generic_reply(gp, reply_payload, reply_payload_space,
-				poke_cmd((op_poke_t *)payload));
-      break;
-
-    default:
-      printf("app_common_v2: unhandled opcode = %d\n", gp->opcode);
-      break;
-    }
-
-    int t = (gp->len + 3) & ~3;		// bump to a multiple of 4
-    payload += t;
-    payload_len -= t;
-
-    subpktlen = (subpktlen + 3) & ~3;	// bump to a multiple of 4
-    reply_payload += subpktlen;
-    reply_payload_space -= subpktlen;
-  }
-
- end_of_subpackets:
-
-  // add the EOP marker
-  subpktlen = add_eop(reply_payload, reply_payload_space);
-  subpktlen = (subpktlen + 3) & ~3;	// bump to a multiple of 4
-  reply_payload += subpktlen;
-  reply_payload_space -= subpktlen;
-
-  send_reply(reply, reply_payload - reply);
-}
-
-
-/*
- * Called when an ethernet packet is received.
- * Return true if we handled it here, otherwise
- * it'll be passed on to the DSP Tx pipe
- */
-int
-eth_pkt_inspector(bsm12_t *sm, int bufno)
-{
-  u2_eth_packet_t *pkt = (u2_eth_packet_t *) buffer_ram(bufno);
-  size_t byte_len = (buffer_pool_status->last_line[bufno] - 3) * 4;
-
-  //static size_t last_len = 0;
-
-  // hal_toggle_leds(0x1);
-
-  // inspect rcvd frame and figure out what do do.
-
-  if (pkt->ehdr.ethertype != U2_ETHERTYPE)
-    return true;	// ignore, probably bogus PAUSE frame from MAC
-
-  int chan = u2p_chan(&pkt->fixed);
-
-  switch (chan){
-  case CONTROL_CHAN:
-    handle_control_chan_frame(pkt, byte_len);
-    return -1;
-    break;
-
-  case 0:
-    return 0;	// pass it off to DSP TX
-
-  case 1:
-    return 1;	// pass it off to SERDES TX
-
-  default:
-    abort();
-    break;
-  }
-}
-
-/*
- * Called when eth phy state changes (w/ interrupts disabled)
- */
-void
-link_changed_callback(int speed)
-{
-  link_is_up = speed != 0;
-  hal_set_leds(link_is_up ? LED_RJ45 : 0x0, LED_RJ45);
-  printf("\neth link changed: speed = %d\n", speed);
-}
-
-
-void
-print_tune_result(char *msg, bool tune_ok,
-		  u2_fxpt_freq_t target_freq, struct tune_result *r)
-{
-#if 0
-  printf("db_tune %s %s\n", msg, tune_ok ? "true" : "false");
-  putstr("  target_freq   "); print_fxpt_freq(target_freq); newline();
-  putstr("  baseband_freq "); print_fxpt_freq(r->baseband_freq); newline();
-  putstr("  dxc_freq      "); print_fxpt_freq(r->dxc_freq); newline();
-  putstr("  residual_freq "); print_fxpt_freq(r->residual_freq); newline();
-  printf("  inverted      %s\n", r->inverted ? "true" : "false");
-#endif
-}
diff --git a/firmware/microblaze/apps/cruft/mimo_app_common_v2.h b/firmware/microblaze/apps/cruft/mimo_app_common_v2.h
deleted file mode 100644
index 1e62ced37..000000000
--- a/firmware/microblaze/apps/cruft/mimo_app_common_v2.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef INCLUDED_APP_COMMON_H
-#define INCLUDED_APP_COMMON_H
-
-#include <stdbool.h>
-#include "usrp2_eth_packet.h"
-#include "bsm12.h"
-#include "memory_map.h"
-#include "hal_io.h"
-#include <stddef.h>
-#include <db.h>
-
-#define CPU_TX_BUF 	7	// cpu -> eth
-
-#define	_AL4 __attribute__((aligned (4)))
-
-extern volatile bool link_is_up;	// eth handler sets this
-
-// If there's a dbsm that sends to the ethernet, put it's address here
-extern dbsm_t *ac_could_be_sending_to_eth;
-
-extern int cpu_tx_buf_dest_port;
-
-void set_reply_hdr(u2_eth_packet_t *reply_pkt, u2_eth_packet_t const *cmd_pkt);
-
-/*
- * Called when an ethernet packet is received.
- */
-int eth_pkt_inspector(bsm12_t *sm, int bufno);
-
-
-void link_changed_callback(int speed);
-
-void
-print_tune_result(char *msg, bool tune_ok,
-		  u2_fxpt_freq_t target_freq, struct tune_result *r);
-
-
-void start_rx_streaming_cmd(const eth_mac_addr_t *host, op_start_rx_streaming_t *p);
-void stop_rx_cmd(void);
-void restart_streaming(void);
-bool is_streaming(void);
-
-void handle_control_chan_frame(u2_eth_packet_t *pkt, size_t len);
-
-#endif /* INCLUDED_APP_COMMON_H */
diff --git a/firmware/microblaze/apps/cruft/mimo_tx.c b/firmware/microblaze/apps/cruft/mimo_tx.c
deleted file mode 100644
index e0f8aa6fa..000000000
--- a/firmware/microblaze/apps/cruft/mimo_tx.c
+++ /dev/null
@@ -1,363 +0,0 @@
-/*
- * Copyright 2007,2008,2009 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/*
- * This is a down and dirty test program that confirms that the we can
- * coherently transmit different signals to two USRP2s connected via a
- * mimo cable.  This code runs in the USRP2 connected to the ethernet.
- * The other USRP runs mimo_tx_slave.  The host runs test_mimo_tx.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "bsm12.h"
-#include "mimo_app_common_v2.h"
-#include "memcpy_wa.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include "clocks.h"
-
-#define FW_SETS_SEQNO	1	// define to 0 or 1 (FIXME must be 1 for now)
-
-#if (FW_SETS_SEQNO)
-static int fw_seqno;	// used when f/w is filling in sequence numbers
-#endif
-
-
-/*
- * Experimental code to transmit packets to DSP Tx and SERDES
- *
- * Hard wire the Tx config so we don't have to deal with control stuff yet.
- */
-
-#define	BUF_BSM12_0	4
-#define	BUF_BSM12_1	5
-#define	BUF_BSM12_2	6
-
-//#define CPU_TX_BUF	7	// cpu -> eth
-
-// 4 lines of ethernet hdr + 1 line transport hdr + 2 lines (word0 + timestamp)
-// DSP Tx reads word0 (flags) + timestamp followed by samples
-
-#define DSP_TX_FIRST_LINE ((sizeof(u2_eth_hdr_t) + sizeof(u2_transport_hdr_t))/4)
-
-// Receive from ethernet
-buf_cmd_args_t bsm12_recv_args = {
-  PORT_ETH,
-  0,
-  BP_LAST_LINE
-};
-
-// send to DSP Tx
-buf_cmd_args_t bsm12_send0_args = {
-  PORT_DSP,
-  DSP_TX_FIRST_LINE,	// starts just past transport header
-  0			// filled in from last_line register
-};
-
-// send to SERDES
-buf_cmd_args_t bsm12_send1_args = {
-  PORT_SERDES,
-  0,			// starts just past transport header
-  0			// filled in from last_line register
-};
-
-bsm12_t bsm12_sm;	// the state machine
-
-#if 0
-/*
- * ================================================================
- *   configure DSP RX double buffering state machine (dsp -> eth)
- * ================================================================
- */
-
-// 4 lines of ethernet hdr + 1 line transport hdr + 1 line (word0)
-// DSP Rx writes timestamp followed by nlines_per_frame of samples
-#define DSP_RX_FIRST_LINE ((sizeof(u2_eth_hdr_t) + sizeof(u2_transport_hdr_t))/4 + 1)
-
-// receive from DSP
-buf_cmd_args_t dsp_rx_recv_args = {
-  PORT_DSP,
-  DSP_RX_FIRST_LINE,
-  BP_LAST_LINE
-};
-
-// send to ETH
-buf_cmd_args_t dsp_rx_send_args = {
-  PORT_ETH,
-  0,		// starts with ethernet header in line 0
-  0,		// filled in from list_line register
-};
-
-dbsm_t dsp_rx_sm;	// the state machine
-#endif
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-// variables for streaming mode
-
-static bool         streaming_p = false;
-static unsigned int streaming_items_per_frame = 0;
-static int          streaming_frame_count = 0;
-#define FRAMES_PER_CMD	1000
-
-bool is_streaming(void){ return streaming_p; }
-
-
-// ----------------------------------------------------------------
-
-
-void
-restart_streaming(void)
-{
-#if 0
-  // setup RX DSP regs
-  dsp_rx_regs->clear_state = 1;			// reset
-
-  streaming_p = true;
-  streaming_frame_count = FRAMES_PER_CMD;
-
-  dsp_rx_regs->rx_command =
-    MK_RX_CMD(FRAMES_PER_CMD * streaming_items_per_frame,
-	      streaming_items_per_frame,
-	      1, 1);			// set "chain" bit
-
-  // kick off the state machine
-  dbsm_start(&dsp_rx_sm);
-
-  dsp_rx_regs->rx_time = 0;		// enqueue first of two commands
-
-  // make sure this one and the rest have the "now" and "chain" bits set.
-  dsp_rx_regs->rx_command =
-    MK_RX_CMD(FRAMES_PER_CMD * streaming_items_per_frame,
-	      streaming_items_per_frame,
-	      1, 1);				
-
-  dsp_rx_regs->rx_time = 0;		// enqueue second command
-#endif
-}
-
-void
-start_rx_streaming_cmd(const eth_mac_addr_t *host, op_start_rx_streaming_t *p)
-{
-#if 0
-  host_mac_addr = *host;	// remember who we're sending to
-
-  /*
-   * Construct  ethernet header and word0 and preload into two buffers
-   */
-  u2_eth_packet_t	pkt;
-  memset(&pkt, 0, sizeof(pkt));
-  pkt.ehdr.dst = *host;
-  pkt.ehdr.src = *ethernet_mac_addr();
-  pkt.ehdr.ethertype = U2_ETHERTYPE;
-  u2p_set_word0(&pkt.fixed, 0, 0);
-  // DSP RX will fill in timestamp
-
-  memcpy_wa(buffer_ram(DSP_RX_BUF_0), &pkt, sizeof(pkt));
-  memcpy_wa(buffer_ram(DSP_RX_BUF_1), &pkt, sizeof(pkt));
-
-
-  if (FW_SETS_SEQNO)
-    fw_seqno = 0;
-
-  streaming_items_per_frame = p->items_per_frame;
-  restart_streaming();
-#endif
-}
-
-
-void
-stop_rx_cmd(void)
-{
-#if 0
-  streaming_p = false;
-  dsp_rx_regs->clear_state = 1;	// flush cmd queue
-  bp_clear_buf(DSP_RX_BUF_0);
-  bp_clear_buf(DSP_RX_BUF_1);
-#endif
-}
-
-
-static void
-setup_tx()
-{
-  dsp_tx_regs->clear_state = 1;
-
-  int tx_scale = 2500;
-  int interp = 8;		// * 4
-
-  // setup some defaults
-
-  dsp_tx_regs->freq = 429496730;	// 10MHz
-  dsp_tx_regs->scale_iq = (tx_scale << 16) | tx_scale;
-  dsp_tx_regs->interp_rate = (1 << 9) | (1 << 8) | interp;
-}
-
-
-#if 0
-#if (FW_SETS_SEQNO)
-/*
- * Debugging ONLY.  This will be handled by the tx_protocol_engine.
- *
- * This is called when the DSP Rx chain has filled in a packet.
- * We set and increment the seqno, then return false, indicating
- * that we didn't handle the packet.  A bit of a kludge
- * but it should work.
- */
-int
-fw_sets_seqno_inspector(bsm12_t *sm, int buf_this)
-{
-  uint32_t *p = buffer_ram(buf_this);
-  uint32_t seqno = fw_seqno++;
-
-  // KLUDGE all kinds of nasty magic numbers and embedded knowledge
-  uint32_t t = p[4];
-  t = (t & 0xffff00ff) | ((seqno & 0xff) << 8);
-  p[4] = t;
-
-  // queue up another rx command when required
-  if (streaming_p && --streaming_frame_count == 0){
-    streaming_frame_count = FRAMES_PER_CMD;
-    dsp_rx_regs->rx_time = 0;
-  }
-
-  return false;		// we didn't handle the packet
-}
-#endif
-#endif
-
-
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  uint32_t  status = buffer_pool_status->status;
-
-  bsm12_process_status(&bsm12_sm, status);
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  putstr("\nMIMO Tx\n");
-  print_mac_addr(ethernet_mac_addr()->addr);
-  newline();
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-  ethernet_init();
-
-  clocks_mimo_config(MC_WE_DONT_LOCK | MC_PROVIDE_CLK_TO_MIMO);
-
-#if 0
-  // make bit 15 of Tx gpio's be a s/w output
-  hal_gpio_set_sel(GPIO_TX_BANK, 15, 's');
-  hal_gpio_set_ddr(GPIO_TX_BANK, 0x8000, 0x8000);
-#endif
-
-  output_regs->debug_mux_ctrl = 1;
-#if 0
-  hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111");
-  hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111");
-  hal_gpio_set_ddr(GPIO_TX_BANK, 0xffff, 0xffff);
-  hal_gpio_set_ddr(GPIO_RX_BANK, 0xffff, 0xffff);
-#endif
-
-
-  // initialize double buffering state machine for ethernet -> DSP Tx
-
-  bsm12_init(&bsm12_sm, BUF_BSM12_0,
-	     &bsm12_recv_args, &bsm12_send0_args, &bsm12_send1_args,
-	     eth_pkt_inspector);
-
-
-#if 0
-  // initialize double buffering state machine for DSP RX -> Ethernet
-
-  if (FW_SETS_SEQNO){
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      fw_sets_seqno_inspector);
-  }
-  else {
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      dbsm_nop_inspector);
-  }
-
-  // tell app_common that this dbsm could be sending to the ethernet
-  ac_could_be_sending_to_eth = &dsp_rx_sm;
-#endif
-
-
-  // program tx registers
-  setup_tx();
-
-  // kick off the state machine
-  bsm12_start(&bsm12_sm);
-
-  //int which = 0;
-
-  while(1){
-    // hal_gpio_write(GPIO_TX_BANK, which, 0x8000);
-    // which ^= 0x8000;
-
-    buffer_irq_handler(0);
-
-    int pending = pic_regs->pending;		// poll for under or overrun
-
-    if (pending & PIC_UNDERRUN_INT){
-      // dbsm_handle_tx_underrun(&dsp_tx_sm);
-      pic_regs->pending = PIC_UNDERRUN_INT;	// clear interrupt
-      putchar('U');
-    }
-
-    if (pending & PIC_OVERRUN_INT){
-      // dbsm_handle_rx_overrun(&dsp_rx_sm);
-      pic_regs->pending = PIC_OVERRUN_INT;	// clear pending interrupt
-
-      // FIXME Figure out how to handle this robustly.
-      // Any buffers that are emptying should be allowed to drain...
-
-      if (streaming_p){
-	// restart_streaming();
-	// FIXME report error
-      }
-      else {
-	// FIXME report error
-      }
-      putchar('O');
-    }
-  }
-}
diff --git a/firmware/microblaze/apps/cruft/mimo_tx_slave.c b/firmware/microblaze/apps/cruft/mimo_tx_slave.c
deleted file mode 100644
index cdf9c03c2..000000000
--- a/firmware/microblaze/apps/cruft/mimo_tx_slave.c
+++ /dev/null
@@ -1,376 +0,0 @@
-/*
- * Copyright 2007,2008,2009 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/*
- * This is a down and dirty test program that confirms that the we can
- * coherently transmit different signals to two USRP2s connected via a
- * mimo cable.  This code runs in the USRP2 NOT connected to the
- * ethernet.  The USRP connected to the ethernet runs mimo_tx.  The
- * host runs test_mimo_tx.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_common_v2.h"
-#include "memcpy_wa.h"
-#include "clocks.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-#define FW_SETS_SEQNO	1	// define to 0 or 1 (FIXME must be 1 for now)
-
-#if (FW_SETS_SEQNO)
-static int fw_seqno;	// used when f/w is filling in sequence numbers
-#endif
-
-
-/*
- * Full duplex Tx and Rx between serdes and DSP pipelines
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to serdes flow
- * Buffers 4 and 5 are used to double-buffer the serdes to DSP Tx flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-
-#define	DSP_RX_BUF_0	2	// dsp rx -> serdes (double buffer)
-#define	DSP_RX_BUF_1	3	// dsp rx -> serdes
-#define	DSP_TX_BUF_0	4	// serdes -> dsp tx (double buffer)
-#define	DSP_TX_BUF_1	5	// serdes -> dsp tx
-
-/*
- * ==================================================================
- *   configure DSP TX double buffering state machine (serdes -> dsp)
- * ==================================================================
- */
-
-// 4 lines of ethernet hdr + 1 line transport hdr + 2 lines (word0 + timestamp)
-// DSP Tx reads word0 (flags) + timestamp followed by samples
-
-#define DSP_TX_FIRST_LINE ((sizeof(u2_eth_hdr_t) + sizeof(u2_transport_hdr_t))/4)
-
-// Receive from serdes
-buf_cmd_args_t dsp_tx_recv_args = {
-  PORT_SERDES,
-  0,
-  BP_LAST_LINE
-};
-
-// send to DSP Tx
-buf_cmd_args_t dsp_tx_send_args = {
-  PORT_DSP,
-  DSP_TX_FIRST_LINE,	// starts just past transport header
-  0			// filled in from last_line register
-};
-
-dbsm_t dsp_tx_sm;	// the state machine
-
-/*
- * =================================================================
- *   configure DSP RX double buffering state machine (dsp -> serdes)
- * =================================================================
- */
-
-// 4 lines of ethernet hdr + 1 line transport hdr + 1 line (word0)
-// DSP Rx writes timestamp followed by nlines_per_frame of samples
-#define DSP_RX_FIRST_LINE ((sizeof(u2_eth_hdr_t) + sizeof(u2_transport_hdr_t))/4 + 1)
-
-// receive from DSP
-buf_cmd_args_t dsp_rx_recv_args = {
-  PORT_DSP,
-  DSP_RX_FIRST_LINE,
-  BP_LAST_LINE
-};
-
-// send to serdes
-buf_cmd_args_t dsp_rx_send_args = {
-  PORT_SERDES,
-  0,		// starts with ethernet header in line 0
-  0,		// filled in from list_line register
-};
-
-dbsm_t dsp_rx_sm;	// the state machine
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-// variables for streaming mode
-
-static bool         streaming_p = false;
-static unsigned int streaming_items_per_frame = 0;
-static int          streaming_frame_count = 0;
-#define FRAMES_PER_CMD	1000
-
-bool is_streaming(void){ return streaming_p; }
-
-// ----------------------------------------------------------------
-
-
-void
-restart_streaming(void)
-{
-  // setup RX DSP regs
-  dsp_rx_regs->clear_state = 1;			// reset
-
-  streaming_p = true;
-  streaming_frame_count = FRAMES_PER_CMD;
-
-  dsp_rx_regs->rx_command =
-    MK_RX_CMD(FRAMES_PER_CMD * streaming_items_per_frame,
-	      streaming_items_per_frame,
-	      1, 1);			// set "chain" bit
-
-  // kick off the state machine
-  dbsm_start(&dsp_rx_sm);
-
-  dsp_rx_regs->rx_time = 0;		// enqueue first of two commands
-
-  // make sure this one and the rest have the "now" and "chain" bits set.
-  dsp_rx_regs->rx_command =
-    MK_RX_CMD(FRAMES_PER_CMD * streaming_items_per_frame,
-	      streaming_items_per_frame,
-	      1, 1);				
-
-  dsp_rx_regs->rx_time = 0;		// enqueue second command
-}
-
-void
-start_rx_streaming_cmd(const eth_mac_addr_t *host, op_start_rx_streaming_t *p)
-{
-  host_mac_addr = *host;	// remember who we're sending to
-
-  /*
-   * Construct  ethernet header and word0 and preload into two buffers
-   */
-  u2_eth_packet_t	pkt;
-  memset(&pkt, 0, sizeof(pkt));
-  pkt.ehdr.dst = *host;
-  pkt.ehdr.src = *ethernet_mac_addr();
-  pkt.ehdr.ethertype = U2_ETHERTYPE;
-  u2p_set_word0(&pkt.fixed, 0, 0);
-  // DSP RX will fill in timestamp
-
-  memcpy_wa(buffer_ram(DSP_RX_BUF_0), &pkt, sizeof(pkt));
-  memcpy_wa(buffer_ram(DSP_RX_BUF_1), &pkt, sizeof(pkt));
-
-
-  if (FW_SETS_SEQNO)
-    fw_seqno = 0;
-
-  streaming_items_per_frame = p->items_per_frame;
-  restart_streaming();
-}
-
-
-void
-stop_rx_cmd(void)
-{
-  streaming_p = false;
-  dsp_rx_regs->clear_state = 1;	// flush cmd queue
-  bp_clear_buf(DSP_RX_BUF_0);
-  bp_clear_buf(DSP_RX_BUF_1);
-}
-
-
-static void
-setup_tx()
-{
-  dsp_tx_regs->clear_state = 1;
-  bp_clear_buf(DSP_TX_BUF_0);
-  bp_clear_buf(DSP_TX_BUF_1);
-
-  int tx_scale = 2500;
-  int interp = 8;		// * 4
-
-  // setup some defaults
-
-  dsp_tx_regs->freq = 429496730;	// 10MHz
-  dsp_tx_regs->scale_iq = (tx_scale << 16) | tx_scale;
-  dsp_tx_regs->interp_rate = (1 << 9) | (1 << 8) | interp;
-}
-
-
-#if (FW_SETS_SEQNO)
-/*
- * Debugging ONLY.  This will be handled by the tx_protocol_engine.
- *
- * This is called when the DSP Rx chain has filled in a packet.
- * We set and increment the seqno, then return false, indicating
- * that we didn't handle the packet.  A bit of a kludge
- * but it should work.
- */
-bool 
-fw_sets_seqno_inspector(dbsm_t *sm, int buf_this)	// returns false
-{
-  uint32_t *p = buffer_ram(buf_this);
-  uint32_t seqno = fw_seqno++;
-
-  // KLUDGE all kinds of nasty magic numbers and embedded knowledge
-  uint32_t t = p[4];
-  t = (t & 0xffff00ff) | ((seqno & 0xff) << 8);
-  p[4] = t;
-
-  // queue up another rx command when required
-  if (streaming_p && --streaming_frame_count == 0){
-    streaming_frame_count = FRAMES_PER_CMD;
-    dsp_rx_regs->rx_time = 0;
-  }
-
-  return false;		// we didn't handle the packet
-}
-#endif
-
-
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  // hal_toggle_leds(LED_A);
-
-  uint32_t  status = buffer_pool_status->status;
-
-  if (0 && (status & ~BPS_IDLE_ALL)){
-    putstr("status = ");
-    puthex32_nl(status);
-  }
-
-  dbsm_process_status(&dsp_tx_sm, status);
-  dbsm_process_status(&dsp_rx_sm, status);
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  output_regs->led_src = 0x3;		// h/w controls bottom two bits
-  clocks_enable_test_clk(true, 1);
-
-  putstr("\nMIMO Tx Slave\n");
-
-  cpu_tx_buf_dest_port = PORT_SERDES;
-
-  // ethernet_register_link_changed_callback(link_changed_callback);
-  // ethernet_init();
-
-  clocks_mimo_config(MC_WE_LOCK_TO_MIMO);
-
-  // puts("post clocks_mimo_config");
-
-#if 0
-  // make bit 15 of Tx gpio's be a s/w output
-  hal_gpio_set_sel(GPIO_TX_BANK, 15, 's');
-  hal_gpio_set_ddr(GPIO_TX_BANK, 0x8000, 0x8000);
-#endif
-
-#if 0
-  output_regs->debug_mux_ctrl = 1;
-  hal_gpio_set_sels(GPIO_TX_BANK, "0000000000000000");
-  hal_gpio_set_sels(GPIO_RX_BANK, "0000000000000000");
-  hal_gpio_set_ddr(GPIO_TX_BANK, 0xffff, 0xffff);
-  hal_gpio_set_ddr(GPIO_RX_BANK, 0xffff, 0xffff);
-#endif
-
-
-  // initialize double buffering state machine for ethernet -> DSP Tx
-
-  dbsm_init(&dsp_tx_sm, DSP_TX_BUF_0,
-	    &dsp_tx_recv_args, &dsp_tx_send_args,
-	    eth_pkt_inspector);
-
-
-  //output_regs->flush_icache = 1;
- 
-  // initialize double buffering state machine for DSP RX -> Ethernet
-
-  if (FW_SETS_SEQNO){
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      fw_sets_seqno_inspector);
-  }
-  else {
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      dbsm_nop_inspector);
-  }
-
-  // puts("post dbsm_init's");
-
-  // tell app_common that this dbsm could be sending to the ethernet
-  ac_could_be_sending_to_eth = &dsp_rx_sm;
-
-
-  // program tx registers
-  setup_tx();
-
-  // puts("post setup_tx");
-
-  // kick off the state machine
-  dbsm_start(&dsp_tx_sm);
-
-  // puts("post dbsm_start");
-
-  //int which = 0;
-
-  while(1){
-    // hal_gpio_write(GPIO_TX_BANK, which, 0x8000);
-    // which ^= 0x8000;
-
-    buffer_irq_handler(0);
-
-    int pending = pic_regs->pending;		// poll for under or overrun
-
-    if (pending & PIC_UNDERRUN_INT){
-      dbsm_handle_tx_underrun(&dsp_tx_sm);
-      pic_regs->pending = PIC_UNDERRUN_INT;	// clear interrupt
-      putchar('U');
-    }
-
-    if (pending & PIC_OVERRUN_INT){
-      dbsm_handle_rx_overrun(&dsp_rx_sm);
-      pic_regs->pending = PIC_OVERRUN_INT;	// clear pending interrupt
-
-      // FIXME Figure out how to handle this robustly.
-      // Any buffers that are emptying should be allowed to drain...
-
-      if (streaming_p){
-	// restart_streaming();
-	// FIXME report error
-      }
-      else {
-	// FIXME report error
-      }
-      putchar('O');
-    }
-  }
-}
diff --git a/firmware/microblaze/apps/cruft/rcv_eth_packets.c b/firmware/microblaze/apps/cruft/rcv_eth_packets.c
deleted file mode 100644
index 03fc94354..000000000
--- a/firmware/microblaze/apps/cruft/rcv_eth_packets.c
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "memcpy_wa.h"
-#include <stddef.h>
-#include <stdlib.h>
-
-
-// ----------------------------------------------------------------
-
-static eth_mac_addr_t dst_mac_addr =
-  {{  0xff, 0xff, 0xff, 0xff, 0xff, 0xff }};
-
-
-// ----------------------------------------------------------------
-
-#define	PACKET_SIZE 1500		// bytes
-#define ETH_DATA_RATE 1000000		// 1MB/s
-#define	ETH_PACKET_RATE (ETH_DATA_RATE/PACKET_SIZE)	// 13,3333 pkts/s
-
-#define TIMER_RATE 100000000		// 100 MHz clock
-
-static int timer_delta = TIMER_RATE/ETH_PACKET_RATE;	// ticks between interrupts
-
-static volatile bool send_packet_now = false;   // timer handler sets this
-static volatile bool link_is_up = false;	// eth handler sets this
-
-int packet_number = 0;
-
-// ----------------------------------------------------------------
-
-// debugging output on tx pins
-#define LS_MASK  0xE0000
-#define LS_1000  0x80000
-#define LS_100   0x40000
-#define LS_10    0x20000
-
-
-/*
- * Called when eth phy state changes (w/ interrupts disabled)
- */
-void
-link_changed_callback(int speed)
-{
-  int v = 0;
-  switch(speed){
-  case 10:
-    v = LS_10;
-    link_is_up = true;
-    break;
-    
-  case 100:
-    v = LS_100;
-    link_is_up = true;
-    break;
-    
-  case 1000:
-    v = LS_100;
-    link_is_up = true;
-    break;
-
-  default:
-    v = 0;
-    link_is_up = false;
-    break;
-  }
-
-  //hal_gpio_set_tx(v, LS_MASK);	/* set debug bits on d'board */
-
-  putstr("\neth link changed: speed = ");
-  puthex16_nl(speed);
-}
-
-void
-timer_irq_handler(unsigned irq)
-{
-  hal_set_timeout(timer_delta);	// schedule next timeout
-  send_packet_now = 1;
-}
-
-
-void
-buffer_irq_handler(unsigned irq)
-{
-  // FIXME
-}
-
-static void
-init_packet(int *buf, const u2_eth_packet_t *pkt, int bufnum)
-{
-  int i = 0;
-  int mark = ((bufnum & 0xff) << 24) | 0x005A0000;
-
-  for (i = 0; i < BP_NLINES; i++){
-    buf[i] = mark | i;
-    mark ^= 0x00FF0000;
-  }
-
-  // copy header into buffer
-  memcpy_wa(buf, pkt, sizeof(*pkt));
-}
-
-static void
-init_packets(void)
-{
-  int	i;
-  
-  u2_eth_packet_t	pkt __attribute__((aligned (4)));
-
-  pkt.ehdr.dst = dst_mac_addr;
-  pkt.ehdr.src = *ethernet_mac_addr();
-  pkt.ehdr.ethertype = U2_ETHERTYPE;
-
-  // fill ALL buffers for debugging
-  for (i = 0; i < 8; i++)
-    init_packet((void *)buffer_ram(i), &pkt, i);
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  int	prev_leds = -1;
-  int	new_leds  = 0x00;
-  output_regs->leds = 0x00;
-
-  int peak_hold_count = 0;
-
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  //hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111");
-  //hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111");
-
-  putstr("\nrcv_eth_packets\n");
-  
-  init_packets();
-
-  // pic_register_handler(IRQ_BUFFER, buffer_irq_handler);  // poll for now
-
-  // FIXME turn off timer since I don't think MTS and MFS instructions are implemented
-  // pic_register_handler(IRQ_TIMER, timer_irq_handler);
-  // hal_set_timeout(timer_delta);
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-
-  ethernet_init();
-
-  //eth_mac->speed = 4;	// FIXME hardcode mac speed to 1000
-
-  // kick off a receive
-  bp_receive_to_buf(2, PORT_ETH, 1, 0, 511);
-
-  while(1){
-    // u2_eth_packet_t	pkt;
-
-    new_leds = 0;
-    if (link_is_up)
-      new_leds = 0x2;
-
-    if ((buffer_pool_status->status & (BPS_DONE_2|BPS_ERROR_2)) != 0){
-      // we've got a packet!
-
-#if 0
-      // copy to stack buffer so we can byte address it
-      memcpy_wa(&pkt, (void *)buffer_ram(2), sizeof(pkt));
-      
-      putstr("Rx: src: ");
-      print_mac_addr(pkt.ehdr.dst_addr);
-      putstr(" dst: ");
-      print_mac_addr(pkt.ehdr.src_addr);
-      putstr(" ethtype: ");
-      puthex16(pkt.ehdr.ethertype);
-      putstr(" len: ");
-      int len = (buffer_pool_status->last_line[2] + 1) * 4;
-      puthex16_nl(len);
-#else
-      volatile int *bp = buffer_ram(2);
-      int	i;
-      for (i = 0; i < 16; i++){
-	puthex8(i);
-	putchar(':');
-	puthex32_nl(bp[i]);
-      }
-#endif
-      
-      // kick off next receive
-      bp_clear_buf(2);
-      bp_receive_to_buf(2, PORT_ETH, 1, 0, 511);
-
-      peak_hold_count = 2048 * 10;
-    }
-
-    if (peak_hold_count > 0){
-      peak_hold_count--;
-      new_leds |= 0x1;
-    }
-
-    if (new_leds != prev_leds){
-      prev_leds = new_leds;
-      output_regs->leds = new_leds;
-    }
-  }
-
-  hal_finish();
-  return 1;
-}
diff --git a/firmware/microblaze/apps/cruft/read_dbids.c b/firmware/microblaze/apps/cruft/read_dbids.c
deleted file mode 100644
index 24c6d9ab4..000000000
--- a/firmware/microblaze/apps/cruft/read_dbids.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <nonstdio.h>
-#include <u2_init.h>
-#include <stdbool.h>
-#include <usrp2_i2c_addr.h>
-#include <i2c.h>
-
-
-int main(void)
-{
-  u2_init();
-
-  puts("\nread_dbids");
-
-  unsigned char dbid_tx[2];
-  unsigned char dbid_rx[2];
-  bool ok;
-
-  ok = eeprom_read(I2C_ADDR_TX_A, 1, dbid_tx, 2);
-  if (!ok){
-    puts("failed to read Tx Daugherboard EEPROM");
-  }
-  else {
-    putstr("Tx Daugherboard ID: ");
-    puthex8(dbid_tx[1]);    // MSB
-    puthex8(dbid_tx[0]);    // LSB
-    newline();
-  }
-
-  ok = eeprom_read(I2C_ADDR_RX_A, 1, dbid_rx, 2);
-  if (!ok){
-    puts("failed to read Rx Daugherboard EEPROM");
-  }
-  else {
-    putstr("Rx Daugherboard ID: ");
-    puthex8(dbid_rx[1]);    // MSB
-    puthex8(dbid_rx[0]);    // LSB
-    newline();
-  }
-
-  return 0;
-}
diff --git a/firmware/microblaze/apps/cruft/sd_bounce.c b/firmware/microblaze/apps/cruft/sd_bounce.c
deleted file mode 100644
index c1b48f170..000000000
--- a/firmware/microblaze/apps/cruft/sd_bounce.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* 
- * Loopback SERDES to SERDES
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "nonstdio.h"
-#include "memset_wa.h"
-#include <dbsm.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <clocks.h>
-
-
-
-// ----------------------------------------------------------------
-
-#define SERDES_RX_BUF_0		0
-#define	SERDES_RX_BUF_1		1
-
-/*
- * ================================================================
- *      configure SD RX double buffering state machine
- * ================================================================
- */
-
-// receive from SERDES
-buf_cmd_args_t sd_recv_args = {
-  PORT_SERDES,
-  0,
-  BP_LAST_LINE
-};
-
-// send to SERDES
-buf_cmd_args_t sd_send_args = {
-  PORT_SERDES,
-  0,		// starts with packet in line 0
-  0,		// filled in from list_line register
-};
-
-dbsm_t sd_sm;	// the state machine
-
-
-
-
-// ----------------------------------------------------------------
-
-#if 0
-static bool
-check_packet(int *buf, int nlines)
-{
-  bool ok = true;
-  int i = 0;
-  for (i = 0; i < nlines; i++){
-    int expected = ((2*i + 0) << 16) | (2*i+1);
-    if (buf[i] != expected){
-      ok = false;
-      printf("buf[%d] = 0x%x  expected = 0x%x\n", i, buf[i], expected);
-    }
-  }
-  return ok;
-}
-
-static void
-zero_buffer(int bufno)
-{
-  memset_wa(buffer_ram(bufno), 0, BP_NLINES * 4);
-}
-#endif
-
-
-bool
-sd_rx_inspector(dbsm_t *sm, int buf_this)
-{
-  hal_toggle_leds(0x2);
-
-#if 0
-  int last_line = buffer_pool_status->last_line[buf_this];
-  bool ok = check_packet(buffer_ram(buf_this), last_line);
-  static int good = 0;
-  static int bad = 0;
-
-  if (ok)
-    good++;
-  else
-    bad++;
-
-  if(good+bad == 10000) {
-    printf("Good %d\tBad %d\n",good,bad);
-    good = 0;
-    bad = 0;
-  }
-#endif
-
-  return false;
-}
-
-
-inline static void
-buffer_irq_handler(void)
-{
-  uint32_t  status = buffer_pool_status->status;
-  dbsm_process_status(&sd_sm, status);
-}
-
-
-int
-main(void)
-{
-  u2_init();
-
-  putstr("\nsd_bounce\n");
-
-  // Get our clock from the mimo interface
-  clocks_mimo_config(MC_WE_LOCK_TO_MIMO);
-
-  dbsm_init(&sd_sm, SERDES_RX_BUF_0,
-	    &sd_recv_args, &sd_send_args,
-	    sd_rx_inspector);
-
-  // kick off the state machine
-  dbsm_start(&sd_sm);
-
-  while(1){
-    buffer_irq_handler();
-  }
-}
diff --git a/firmware/microblaze/apps/cruft/sd_gentest.c b/firmware/microblaze/apps/cruft/sd_gentest.c
deleted file mode 100644
index 35e912615..000000000
--- a/firmware/microblaze/apps/cruft/sd_gentest.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "nonstdio.h"
-#include "memset_wa.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <clocks.h>
-#include <mdelay.h>
-
-// ----------------------------------------------------------------
-
-int packet_number = 0;
-volatile bool send_packet_now = 0;
-
-#define SERDES_TX_BUF	0
-#define	SERDES_RX_BUF 	1
-
-
-#define NLINES_PER_PKT	380
-
-
-// ----------------------------------------------------------------
-
-//static int timer_delta = (int)(MASTER_CLK_RATE * 100e-6);
-static int timer_delta = 1000000; // .01 second
-
-void
-timer_irq_handler(unsigned irq)
-{
-  hal_set_timeout(timer_delta);	// schedule next timeout
-  send_packet_now = true;
-}
-
-
-static void
-init_packet(int *buf)
-{
-  int i = 0;
-  for (i = 0; i < BP_NLINES; i++){
-    buf[i] = ((2*i + 0) << 16) | (2*i+1);
-  }
-}
-
-static bool
-check_packet(int *buf, int nlines)
-{
-  bool ok = true;
-  int i = 0;
-  for (i = 0; i < nlines; i++){
-    int expected = ((2*i + 0) << 16) | (2*i+1);
-    if (buf[i] != expected){
-      ok = false;
-      printf("buf[%d] = 0x%x  expected = 0x%x\n", i, buf[i], expected);
-    }
-  }
-  return ok;
-}
-
-static void
-zero_buffer(int bufno)
-{
-  memset_wa(buffer_ram(bufno), 0, BP_NLINES * 4);
-}
-
-static void
-init_packets(void)
-{
-  // init just the one we're using
-  init_packet(buffer_ram(SERDES_TX_BUF));
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  // We're free running and provide clock to the MIMO interface
-  clocks_mimo_config(MC_WE_DONT_LOCK | MC_PROVIDE_CLK_TO_MIMO);
-
-
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  // output_regs->debug_mux_ctrl = 1;
-  // hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111");
-  // hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111");
-
-  putstr("\nsd_gentest\n");
-  
-  // Set up serdes (already enabled)
-  //output_regs->serdes_ctrl = (SERDES_ENABLE | SERDES_RXEN | SERDES_LOOPEN);
-  //output_regs->serdes_ctrl = (SERDES_ENABLE | SERDES_RXEN);
-
-  init_packets();
-
-  // pic_register_handler(IRQ_TIMER, timer_irq_handler);
-
-  //if (hwconfig_simulation_p())
-  //  timer_delta = sim_timer_delta;
-
-  // start a receive from sd
-  zero_buffer(SERDES_RX_BUF);
-  bp_receive_to_buf(SERDES_RX_BUF, PORT_SERDES, 1, 0, BP_LAST_LINE);
-
-  // fire off the first packet
-  bp_send_from_buf(SERDES_TX_BUF, PORT_SERDES, 1, 0, NLINES_PER_PKT);
-  hal_set_timeout(timer_delta);
-  int ready_to_send = 0;
-
-  int counter __attribute__((unused)) = 0;
-  int sent = 1;
-  int txerr = 0;
-  int rxerr = 0;
-  int rcvd = 0;
-  int rxcrc = 0;
-  int sent_acc = 0;
-  int txerr_acc = 0;
-  int rxerr_acc = 0;
-  int rcvd_acc = 0;
-  int rxcrc_acc = 0;
-
-#define EXPECTING_PKT() ((counter & 0x1) == 0)
-#define	SEND_PKT()      ((counter & 0x1) != 0)
-
-  bool got_packet = false;
-
-  while(1){
-    uint32_t status = buffer_pool_status->status;
-
-    if (status & (BPS_DONE(SERDES_RX_BUF))){
-      bp_clear_buf(SERDES_RX_BUF);
-      got_packet = true;
-
-      //hal_toggle_leds(0x2);
-
-      // check packet
-      int last_line = buffer_pool_status->last_line[SERDES_RX_BUF]-1;
-      bool ok = check_packet(buffer_ram(SERDES_RX_BUF), last_line);
-      
-      if (ok) {
-	rcvd++;
-	//putchar('r');
-      }
-      else {
-	rcvd++;
-	rxcrc++;
-	//putchar('P');
-      }
-      // start a receive from sd
-      zero_buffer(SERDES_RX_BUF);
-      bp_receive_to_buf(SERDES_RX_BUF, PORT_SERDES, 1, 0, BP_LAST_LINE);
-    }
-
-    if (status & (BPS_ERROR(SERDES_RX_BUF))){
-      bp_clear_buf(SERDES_RX_BUF);
-      got_packet = true;
-      rcvd++;
-      rxerr++;
-      //putchar('E');
-
-      // start a receive from sd
-      zero_buffer(SERDES_RX_BUF);
-      bp_receive_to_buf(SERDES_RX_BUF, PORT_SERDES, 1, 0, BP_LAST_LINE);
-    }
-
-    if (status & (BPS_DONE(SERDES_TX_BUF))){
-      bp_clear_buf(SERDES_TX_BUF);
-      //putchar('t');
-      bp_send_from_buf(SERDES_TX_BUF, PORT_SERDES, 1, 0, NLINES_PER_PKT);
-      //mdelay(1);
-      int	i;
-      for (i = 0; i < 50; i++){
-	asm volatile ("or  r0, r0, r0\n\
-		   or  r0, r0, r0\n    \
-		   or  r0, r0, r0\n    \
-		   or  r0, r0, r0\n    \
-		   or  r0, r0, r0\n    \
-		   or  r0, r0, r0\n    \
-		   or  r0, r0, r0\n");
-      }
-      sent ++;
-      ready_to_send = 1;
-      //hal_toggle_leds(0x1);
-    }
-
-    if (status & BPS_ERROR(SERDES_TX_BUF)){
-      bp_clear_buf(SERDES_TX_BUF);
-      sent++;
-      txerr++;
-      ready_to_send = 1;
-      //putchar('X');
-    }
-
-    if(sent >=1000) {
-      printf("Status\tSENT %d\tTXERR %d\t",sent,txerr);
-      printf("RX %d\tERR %d\tCRC %d\tMISSED %d\n",rcvd, rxerr, rxcrc, sent-rcvd);
-      sent_acc += sent; sent = 0;
-      txerr_acc += txerr; txerr = 0;
-      rcvd_acc += rcvd; rcvd = 0;
-      rxerr_acc += rxerr; rxerr = 0;
-      rxcrc_acc += rxcrc; rxcrc = 0;
-    }
-
-    if(sent_acc >=10000) {
-      printf("\nOverall\tSENT %d\tTXERR %d\t",sent_acc,txerr_acc);
-      printf("RX %d\tERR %d\tCRC %d\tMISSED %d\n\n",rcvd_acc, rxerr_acc, rxcrc_acc, sent_acc-rcvd_acc);
-      sent_acc = 0;
-      txerr_acc = 0;
-      rcvd_acc = 0;
-      rxerr_acc = 0;
-      rxcrc_acc = 0;
-    }
-#if 0
-    int pending = pic_regs->pending;
-    if (pending & PIC_TIMER_INT){
-      hal_set_timeout(timer_delta);
-      
-      /*
-	if (EXPECTING_PKT()){
-	if (!got_packet)
-	  putchar('T');
-	got_packet = false;
-      }
-
-      if (SEND_PKT()){
-	if (status & BPS_IDLE(SERDES_TX_BUF))
-	  bp_send_from_buf(SERDES_TX_BUF, PORT_SERDES, 1, 0, NLINES_PER_PKT);
-      }
-      counter++;
-      */
-
-      putchar('T');
-      if(ready_to_send) {
-	bp_send_from_buf(SERDES_TX_BUF, PORT_SERDES, 1, 0, NLINES_PER_PKT);
-	counter++;
-	ready_to_send = 0;
-      }
-      
-      pic_regs->pending = PIC_TIMER_INT;	// clear pending interrupt
-    }
-#endif
-  }
-  
-  return 0;
-}
diff --git a/firmware/microblaze/apps/cruft/serdes_to_dsp.c b/firmware/microblaze/apps/cruft/serdes_to_dsp.c
deleted file mode 100644
index 4994e0a69..000000000
--- a/firmware/microblaze/apps/cruft/serdes_to_dsp.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_common.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-/*
- * This program can respond to queries from the host
- * and stream rx samples.
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to eth flow
- * Buffers 4 and 5 are used to double-buffer the eth to DSP Tx  eth flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-//#define CPU_TX_BUF 	1	// cpu -> eth
-
-#define	DSP_RX_BUF_0	2	// dsp rx -> eth (double buffer)
-#define	DSP_RX_BUF_1	3	// dsp rx -> eth
-#define	DSP_TX_BUF_0	4	// eth -> dsp tx (double buffer)
-#define	DSP_TX_BUF_1	5	// eth -> dsp tx
-
-/*
- * ================================================================
- *      configure DSP TX double buffering state machine
- * ================================================================
- */
-
-// 4 lines of ethernet hdr + 1 line transport hdr + 2 lines (word0 + timestamp)
-// DSP Tx reads word0 (flags) + timestamp followed by samples
-
-#define DSP_TX_FIRST_LINE ((sizeof(u2_eth_hdr_t) + sizeof(u2_transport_hdr_t))/4)
-
-// Receive from ethernet
-buf_cmd_args_t dsp_tx_recv_args = {
-  PORT_SERDES,
-  0,
-  BP_LAST_LINE
-};
-
-// send to DSP Tx
-buf_cmd_args_t dsp_tx_send_args = {
-  PORT_DSP,
-  DSP_TX_FIRST_LINE,	// starts just past transport header
-  0			// filled in from last_line register
-};
-
-dbsm_t dsp_tx_sm;	// the state machine
-
-
-// ----------------------------------------------------------------
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-void
-start_rx_cmd(const eth_mac_addr_t *host, op_start_rx_t *p)
-{
-}
-
-void
-stop_rx_cmd(void)
-{
-}
-
-static void
-setup_tx()
-{
-  dsp_tx_regs->clear_state = 1;
-  bp_clear_buf(DSP_TX_BUF_0);
-  bp_clear_buf(DSP_TX_BUF_1);
-
-  int tx_scale = 256;
-  int interp = 32;
-
-  op_config_tx_t def_config;
-  memset(&def_config, 0, sizeof(def_config));
-  def_config.phase_inc  = 408021893;			// 9.5 MHz [2**32 * fc/fsample]
-  def_config.scale_iq = (tx_scale << 16) | tx_scale;
-  def_config.interp = interp;
-
-  // setup Tx DSP regs
-  config_tx_cmd(&def_config);
-}
-
-
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  //hal_toggle_leds(0x2);
-
-  uint32_t  status = buffer_pool_status->status;
-
-  dbsm_process_status(&dsp_tx_sm, status);
-
-  if (status & BPS_DONE(CPU_TX_BUF)){
-    bp_clear_buf(CPU_TX_BUF);
-  }
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  // Get our clock from the mimo interface
-
-  clocks_enable_test_clk(true,1);
-  clocks_mimo_config(MC_WE_LOCK_TO_MIMO);
-  
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  //hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111");
-  //hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111");
-
-  putstr("\nserdes_to_dsp\n");
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-  ethernet_init();
-
-
-  // initialize double buffering state machine for ethernet -> DSP Tx
-
-  dbsm_init(&dsp_tx_sm, DSP_TX_BUF_0,
-	    &dsp_tx_recv_args, &dsp_tx_send_args,
-	    eth_pkt_inspector);
-
-  // program tx registers
-  setup_tx();
-
-  // kick off the state machine
-  dbsm_start(&dsp_tx_sm);
-
-  while(1){
-    buffer_irq_handler(0);
-
-    int pending = pic_regs->pending;	// poll for under or overrun
-
-    if (pending & PIC_UNDERRUN_INT){
-      dbsm_handle_tx_underrun(&dsp_tx_sm);
-      pic_regs->pending = PIC_UNDERRUN_INT;	// clear interrupt
-      putchar('U');
-    }
-  }
-}
-
diff --git a/firmware/microblaze/apps/cruft/serdes_txrx.c b/firmware/microblaze/apps/cruft/serdes_txrx.c
deleted file mode 100644
index 2c47c9628..000000000
--- a/firmware/microblaze/apps/cruft/serdes_txrx.c
+++ /dev/null
@@ -1,368 +0,0 @@
-/*
- * Copyright 2007,2008,2009 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_common_v2.h"
-#include "memcpy_wa.h"
-#include "clocks.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-#define FW_SETS_SEQNO	1	// define to 0 or 1 (FIXME must be 1 for now)
-
-#if (FW_SETS_SEQNO)
-static int fw_seqno;	// used when f/w is filling in sequence numbers
-#endif
-
-
-/*
- * Full duplex Tx and Rx between serdes and DSP pipelines
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to serdes flow
- * Buffers 4 and 5 are used to double-buffer the serdes to DSP Tx flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-
-#define	DSP_RX_BUF_0	2	// dsp rx -> serdes (double buffer)
-#define	DSP_RX_BUF_1	3	// dsp rx -> serdes
-#define	DSP_TX_BUF_0	4	// serdes -> dsp tx (double buffer)
-#define	DSP_TX_BUF_1	5	// serdes -> dsp tx
-
-/*
- * ==================================================================
- *   configure DSP TX double buffering state machine (serdes -> dsp)
- * ==================================================================
- */
-
-// 4 lines of ethernet hdr + 1 line transport hdr + 2 lines (word0 + timestamp)
-// DSP Tx reads word0 (flags) + timestamp followed by samples
-
-#define DSP_TX_FIRST_LINE ((sizeof(u2_eth_hdr_t) + sizeof(u2_transport_hdr_t))/4)
-
-// Receive from serdes
-buf_cmd_args_t dsp_tx_recv_args = {
-  PORT_SERDES,
-  0,
-  BP_LAST_LINE
-};
-
-// send to DSP Tx
-buf_cmd_args_t dsp_tx_send_args = {
-  PORT_DSP,
-  DSP_TX_FIRST_LINE,	// starts just past transport header
-  0			// filled in from last_line register
-};
-
-dbsm_t dsp_tx_sm;	// the state machine
-
-/*
- * =================================================================
- *   configure DSP RX double buffering state machine (dsp -> serdes)
- * =================================================================
- */
-
-// 4 lines of ethernet hdr + 1 line transport hdr + 1 line (word0)
-// DSP Rx writes timestamp followed by nlines_per_frame of samples
-#define DSP_RX_FIRST_LINE ((sizeof(u2_eth_hdr_t) + sizeof(u2_transport_hdr_t))/4 + 1)
-
-// receive from DSP
-buf_cmd_args_t dsp_rx_recv_args = {
-  PORT_DSP,
-  DSP_RX_FIRST_LINE,
-  BP_LAST_LINE
-};
-
-// send to serdes
-buf_cmd_args_t dsp_rx_send_args = {
-  PORT_SERDES,
-  0,		// starts with ethernet header in line 0
-  0,		// filled in from list_line register
-};
-
-dbsm_t dsp_rx_sm;	// the state machine
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-// variables for streaming mode
-
-static bool         streaming_p = false;
-static unsigned int streaming_items_per_frame = 0;
-static int          streaming_frame_count = 0;
-#define FRAMES_PER_CMD	1000
-
-bool is_streaming(void){ return streaming_p; }
-
-// ----------------------------------------------------------------
-
-
-void
-restart_streaming(void)
-{
-  // setup RX DSP regs
-  dsp_rx_regs->clear_state = 1;			// reset
-
-  streaming_p = true;
-  streaming_frame_count = FRAMES_PER_CMD;
-
-  dsp_rx_regs->rx_command =
-    MK_RX_CMD(FRAMES_PER_CMD * streaming_items_per_frame,
-	      streaming_items_per_frame,
-	      1, 1);			// set "chain" bit
-
-  // kick off the state machine
-  dbsm_start(&dsp_rx_sm);
-
-  dsp_rx_regs->rx_time = 0;		// enqueue first of two commands
-
-  // make sure this one and the rest have the "now" and "chain" bits set.
-  dsp_rx_regs->rx_command =
-    MK_RX_CMD(FRAMES_PER_CMD * streaming_items_per_frame,
-	      streaming_items_per_frame,
-	      1, 1);				
-
-  dsp_rx_regs->rx_time = 0;		// enqueue second command
-}
-
-void
-start_rx_streaming_cmd(const eth_mac_addr_t *host, op_start_rx_streaming_t *p)
-{
-  host_mac_addr = *host;	// remember who we're sending to
-
-  /*
-   * Construct  ethernet header and word0 and preload into two buffers
-   */
-  u2_eth_packet_t	pkt;
-  memset(&pkt, 0, sizeof(pkt));
-  pkt.ehdr.dst = *host;
-  pkt.ehdr.src = *ethernet_mac_addr();
-  pkt.ehdr.ethertype = U2_ETHERTYPE;
-  u2p_set_word0(&pkt.fixed, 0, 0);
-  // DSP RX will fill in timestamp
-
-  memcpy_wa(buffer_ram(DSP_RX_BUF_0), &pkt, sizeof(pkt));
-  memcpy_wa(buffer_ram(DSP_RX_BUF_1), &pkt, sizeof(pkt));
-
-
-  if (FW_SETS_SEQNO)
-    fw_seqno = 0;
-
-  streaming_items_per_frame = p->items_per_frame;
-  restart_streaming();
-}
-
-
-void
-stop_rx_cmd(void)
-{
-  streaming_p = false;
-  dsp_rx_regs->clear_state = 1;	// flush cmd queue
-  bp_clear_buf(DSP_RX_BUF_0);
-  bp_clear_buf(DSP_RX_BUF_1);
-}
-
-
-static void
-setup_tx()
-{
-  dsp_tx_regs->clear_state = 1;
-  bp_clear_buf(DSP_TX_BUF_0);
-  bp_clear_buf(DSP_TX_BUF_1);
-
-  int tx_scale = 256;
-  int interp = 32;
-
-  // setup some defaults
-
-  dsp_tx_regs->freq = 0;
-  dsp_tx_regs->scale_iq = (tx_scale << 16) | tx_scale;
-  dsp_tx_regs->interp_rate = interp;
-}
-
-
-#if (FW_SETS_SEQNO)
-/*
- * Debugging ONLY.  This will be handled by the tx_protocol_engine.
- *
- * This is called when the DSP Rx chain has filled in a packet.
- * We set and increment the seqno, then return false, indicating
- * that we didn't handle the packet.  A bit of a kludge
- * but it should work.
- */
-bool 
-fw_sets_seqno_inspector(dbsm_t *sm, int buf_this)	// returns false
-{
-  uint32_t *p = buffer_ram(buf_this);
-  uint32_t seqno = fw_seqno++;
-
-  // KLUDGE all kinds of nasty magic numbers and embedded knowledge
-  uint32_t t = p[4];
-  t = (t & 0xffff00ff) | ((seqno & 0xff) << 8);
-  p[4] = t;
-
-  // queue up another rx command when required
-  if (streaming_p && --streaming_frame_count == 0){
-    streaming_frame_count = FRAMES_PER_CMD;
-    dsp_rx_regs->rx_time = 0;
-  }
-
-  return false;		// we didn't handle the packet
-}
-#endif
-
-
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  // hal_toggle_leds(LED_A);
-
-  uint32_t  status = buffer_pool_status->status;
-
-  if (0 && (status & ~BPS_IDLE_ALL)){
-    putstr("status = ");
-    puthex32_nl(status);
-  }
-
-  dbsm_process_status(&dsp_tx_sm, status);
-  dbsm_process_status(&dsp_rx_sm, status);
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  output_regs->led_src = 0x3;		// h/w controls bottom two bits
-  clocks_enable_test_clk(true, 1);
-
-  putstr("\nSERDES TxRx\n");
-
-  cpu_tx_buf_dest_port = PORT_SERDES;
-
-  // ethernet_register_link_changed_callback(link_changed_callback);
-  // ethernet_init();
-
-  clocks_mimo_config(MC_WE_LOCK_TO_MIMO);
-
-  // puts("post clocks_mimo_config");
-
-#if 0
-  // make bit 15 of Tx gpio's be a s/w output
-  hal_gpio_set_sel(GPIO_TX_BANK, 15, 's');
-  hal_gpio_set_ddr(GPIO_TX_BANK, 0x8000, 0x8000);
-#endif
-
-#if 0
-  output_regs->debug_mux_ctrl = 1;
-  hal_gpio_set_sels(GPIO_TX_BANK, "0000000000000000");
-  hal_gpio_set_sels(GPIO_RX_BANK, "0000000000000000");
-  hal_gpio_set_ddr(GPIO_TX_BANK, 0xffff, 0xffff);
-  hal_gpio_set_ddr(GPIO_RX_BANK, 0xffff, 0xffff);
-#endif
-
-
-  // initialize double buffering state machine for ethernet -> DSP Tx
-
-  dbsm_init(&dsp_tx_sm, DSP_TX_BUF_0,
-	    &dsp_tx_recv_args, &dsp_tx_send_args,
-	    eth_pkt_inspector);
-
-
-  //output_regs->flush_icache = 1;
- 
-  // initialize double buffering state machine for DSP RX -> Ethernet
-
-  if (FW_SETS_SEQNO){
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      fw_sets_seqno_inspector);
-  }
-  else {
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      dbsm_nop_inspector);
-  }
-
-  // puts("post dbsm_init's");
-
-  // tell app_common that this dbsm could be sending to the ethernet
-  ac_could_be_sending_to_eth = &dsp_rx_sm;
-
-
-  // program tx registers
-  setup_tx();
-
-  // puts("post setup_tx");
-
-  // kick off the state machine
-  dbsm_start(&dsp_tx_sm);
-
-  // puts("post dbsm_start");
-
-  //int which = 0;
-
-  while(1){
-    // hal_gpio_write(GPIO_TX_BANK, which, 0x8000);
-    // which ^= 0x8000;
-
-    buffer_irq_handler(0);
-
-    int pending = pic_regs->pending;		// poll for under or overrun
-
-    if (pending & PIC_UNDERRUN_INT){
-      dbsm_handle_tx_underrun(&dsp_tx_sm);
-      pic_regs->pending = PIC_UNDERRUN_INT;	// clear interrupt
-      putchar('U');
-    }
-
-    if (pending & PIC_OVERRUN_INT){
-      dbsm_handle_rx_overrun(&dsp_rx_sm);
-      pic_regs->pending = PIC_OVERRUN_INT;	// clear pending interrupt
-
-      // FIXME Figure out how to handle this robustly.
-      // Any buffers that are emptying should be allowed to drain...
-
-      if (streaming_p){
-	// restart_streaming();
-	// FIXME report error
-      }
-      else {
-	// FIXME report error
-      }
-      putchar('O');
-    }
-  }
-}
diff --git a/firmware/microblaze/apps/cruft/set_hw_rev.c b/firmware/microblaze/apps/cruft/set_hw_rev.c
deleted file mode 100644
index d4ac8ff81..000000000
--- a/firmware/microblaze/apps/cruft/set_hw_rev.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#include <u2_init.h>
-#include <nonstdio.h>
-#include <i2c.h>
-#include <usrp2_i2c_addr.h>
-
-#define HW_REV_MAJOR 0
-#define HW_REV_MINOR 3
-
-int
-main(void)
-{
-  u2_init();
-
-  putstr("\nset_hw_rev\n");
-
-  bool ok = true;
-  unsigned char maj = HW_REV_MAJOR;
-  unsigned char min = HW_REV_MINOR;
-  ok = eeprom_write(I2C_ADDR_MBOARD, MBOARD_REV_MSB, &maj, 1);
-  ok &= eeprom_write(I2C_ADDR_MBOARD, MBOARD_REV_LSB, &min, 1);
-
-  if (ok)
-    printf("OK: set h/w rev to %d.%d\n", HW_REV_MAJOR, HW_REV_MINOR);
-  else
-    printf("FAILED to set h/w rev to %d.%d\n", HW_REV_MAJOR, HW_REV_MINOR);
-
-  return 0;
-}
diff --git a/firmware/microblaze/apps/cruft/test1.c b/firmware/microblaze/apps/cruft/test1.c
deleted file mode 100644
index c3cc3be56..000000000
--- a/firmware/microblaze/apps/cruft/test1.c
+++ /dev/null
@@ -1,282 +0,0 @@
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include "nonstdio.h"
-
-// Globals
-#define EMPTY 0
-#define FILLING 1
-#define FULL 2
-#define EMPTYING 3
-
-#define PORT 2    // ethernet = 2, serdes = 0
-int dsp_rx_buf, dsp_tx_buf, serdes_rx_buf, serdes_tx_buf;
-int dsp_rx_idle, dsp_tx_idle, serdes_rx_idle, serdes_tx_idle;
-
-int buffer_state[4];
-
-
-void double_buffering(int port);
-
-//
-// We register this in the secondary interrupt vector.
-// It's called on buffer manager interrupts
-//
-void
-buffer_irq_handler(unsigned irq)
-{
-  double_buffering(PORT);
-}
-
-int
-main(void)
-{
-  int i;
-
-  u2_init();
-
-  // Control LEDs
-  output_regs->leds = 0x02;
-
-  // Turn on ADCs
-  output_regs->adc_ctrl = 0x0A;
-
-  // Set up TX Chain
-  dsp_tx_regs->freq = 0;
-  dsp_tx_regs->scale_iq = (1 << 16) | 1;
-  dsp_tx_regs->interp_rate = 8;
-
-  // Set up RX Chain
-  dsp_rx_regs->freq = 0;
-  dsp_rx_regs->scale_iq = (1 << 16) | 1;
-  dsp_rx_regs->decim_rate = 8;
-
-  // Set up buffer control, using only 4 for now
-  for(i=0;i<4;i++) 
-    buffer_state[i] = EMPTY;
-
-  // Set up DSP RX
-  buffer_state[0] = FILLING;
-  serdes_tx_idle = 1;
-  bp_receive_to_buf(0, 1, 1, 10, 509);  // DSP_RX to buffer 0, use 500 lines
-
-  //dsp_rx_regs->run_rx = 1;           // Start DSP_RX
-  putstr("Done DSP RX setup\n");
-
-  // Set up serdes RX
-  buffer_state[2] = FILLING;
-  dsp_tx_idle = 1;
-  bp_receive_to_buf(2, PORT, 1, 5, 504);
-
-  while (buffer_pool_status->status == 0)  // wait for completion of DSP RX
-    ;
-
-  putstr("Done DSP TX setup\n");
-  //dsp_tx_regs->run_tx = 1;
-
-  // register interrupt handler
-  pic_register_handler(IRQ_BUFFER, buffer_irq_handler);
-
-  while (1)
-    ;
-
-  hal_finish();
-  return 1;
-}
-
-void 
-double_buffering(int port) {
-  unsigned int localstatus = buffer_pool_status->status;
-
-  if(localstatus & BPS_DONE_0) {
-    bp_clear_buf(0);
-    if(buffer_state[0] == FILLING) {
-      buffer_state[0] = FULL;
-      if(buffer_state[1] == EMPTY) {
-	bp_receive_to_buf(1, 1, 1, 10, 509);  // DSP_RX to buffer 1, use 500 lines
-	buffer_state[1] = FILLING;
-      }
-      else
-	dsp_rx_idle = 1;
-      if(serdes_tx_idle) {
-	serdes_tx_idle = 0;
-	bp_send_from_buf(0, port, 1, 10, 509);  // SERDES_TX from buffer 0
-	buffer_state[0] = EMPTYING;
-      }
-    }
-    else {  // buffer was emptying
-      buffer_state[0] = EMPTY;
-      if(dsp_rx_idle) {
-	dsp_rx_idle = 0;
-	bp_receive_to_buf(0, 1, 1, 10, 509);  // DSP_RX to buffer 0, use 500 lines
-	buffer_state[0] = FILLING;
-      }
-      if(buffer_state[1] == FULL) {
-	bp_send_from_buf(1, port, 1, 10, 509);  // SERDES_TX from buffer 1
-	buffer_state[1] = EMPTYING;
-      }
-      else
-	serdes_tx_idle = 1;
-    }
-    putstr("Int Proc'ed 0\n");
-  }
-  if(localstatus & BPS_DONE_1) {
-    bp_clear_buf(1);
-    if(buffer_state[1] == FILLING) {
-      buffer_state[1] = FULL;
-      if(buffer_state[0] == EMPTY) {
-	bp_receive_to_buf(0, 1, 1, 10, 509);  // DSP_RX to buffer 1, use 500 lines
-	buffer_state[0] = FILLING;
-      }
-      else
-	dsp_rx_idle = 1;
-      if(serdes_tx_idle) {
-	serdes_tx_idle = 0;
-	bp_send_from_buf(1, port, 1, 10, 509);  // SERDES_TX from buffer 1
-	buffer_state[1] = EMPTYING;
-      }
-    }
-    else {  // buffer was emptying
-      buffer_state[1] = EMPTY;
-      if(dsp_rx_idle) {
-	dsp_rx_idle = 0;
-	bp_receive_to_buf(1, 1, 1, 10, 509);  // DSP_RX to buffer 1, use 500 lines
-	buffer_state[1] = FILLING;
-      }
-      if(buffer_state[0] == FULL) {
-	bp_send_from_buf(0, port, 1, 10, 509);  // SERDES_TX from buffer 0
-	buffer_state[0] = EMPTYING;
-      }
-      else
-	serdes_tx_idle = 1;
-    }
-  putstr("Int Proc'ed 1\n");
-  }
-  if(localstatus & BPS_DONE_2) {
-    bp_clear_buf(2);
-    if(buffer_state[2] == FILLING) {
-      buffer_state[2] = FULL;
-      if(buffer_state[3] == EMPTY) {
-	bp_receive_to_buf(3, port, 1, 5, 504);  // SERDES_RX to buffer 3, use 500 lines
-	buffer_state[3] = FILLING;
-      }
-      else
-	serdes_rx_idle = 1;
-      if(dsp_tx_idle) {
-	dsp_tx_idle = 0;
-	bp_send_from_buf(2, 1, 1, 5, 504);  // DSP_TX from buffer 2
-	buffer_state[2] = EMPTYING;
-      }
-    }
-    else {  // buffer was emptying
-      buffer_state[2] = EMPTY;
-      if(serdes_rx_idle) {
-	serdes_rx_idle = 0;
-	bp_receive_to_buf(2, port, 1, 5, 504);  // SERDES_RX to buffer 2
-	buffer_state[2] = FILLING;
-      }
-      if(buffer_state[3] == FULL) {
-	bp_send_from_buf(3, 1, 1, 5, 504);  // DSP_TX from buffer 3
-	buffer_state[3] = EMPTYING;
-      }
-      else
-	dsp_tx_idle = 1;
-    }
-  putstr("Int Proc'ed 2\n");
-  }
-  if(localstatus & BPS_DONE_3) {
-    bp_clear_buf(3);
-    if(buffer_state[3] == FILLING) {
-      buffer_state[3] = FULL;
-      if(buffer_state[2] == EMPTY) {
-	bp_receive_to_buf(2, port, 1, 5, 504);  // SERDES_RX to buffer 2, use 500 lines
-	buffer_state[2] = FILLING;
-      }
-      else
-	serdes_rx_idle = 1;
-      if(dsp_tx_idle) {
-	dsp_tx_idle = 0;
-	bp_send_from_buf(3, 1, 1, 5, 504);  // DSP_TX from buffer 3
-	buffer_state[3] = EMPTYING;
-      }
-    }
-    else {  // buffer was emptying
-      buffer_state[3] = EMPTY;
-      if(serdes_rx_idle) {
-	serdes_rx_idle = 0;
-	bp_receive_to_buf(3, port, 1, 5, 504);  // SERDES_RX to buffer 3
-	buffer_state[3] = FILLING;
-      }
-      if(buffer_state[2] == FULL) {
-	bp_send_from_buf(2, 1, 1, 5, 504);  // DSP_TX from buffer 2
-	buffer_state[2] = EMPTYING;
-      }
-      else
-	dsp_tx_idle = 1;
-    }
-  putstr("Int Proc'ed 3\n");
-  }
-}
-
-// Spare Code
-
-#if 0  
-  // Set up LSDAC
-  int i = 0;
-  while(1) {
-    int command = (3 << 19) | (0 << 16) |  (i & 0xffff);
-    spi_transact(SPI_TXONLY, SPI_SS_TX_DAC, command, 24, 1); // negate TX phase
-    i++;
-  }
-#endif
-
-#if 0  
-  // Write to buffer 0
-  int *buf = (int *)(BUFFER_BASE + BUFFER_0);
-  puthex_nl((int)buf);
-
-  for(i=0;i<BUFFER_SIZE;i++)
-    buf[i] = i;
-
-  putstr("Filled buffer 0\n");
-
-  // Write to buffer 1
-  buf = (int *)(BUFFER_BASE + BUFFER_1);
-  puthex_nl((int)buf);
-  for(i=0;i<BUFFER_SIZE;i++)
-    buf[i] =  i + ((i^0xFFFF) << 16);
-
-  putstr("Filled buffer 1\n");
-
-#endif
-
-#if 0
-  // rx SERDES into buffer #2  (buf,port,step,fl,ll)
-  bp_receive_to_buf(2, 0, 1, 10, 300);
-  putstr("SERDES RX buffer setup\n");
-
-  // send SERDES from buffer #0 (buf,port,step,fl,ll)
-  bp_send_from_buf(0, 0, 1, 20, 200);
-  putstr("SERDES TX buffer setup\n");
-
-#endif
-
-#if 0
-  // send to DACs from buffer #1
-  bp_send_from_buf(1 /*buf#*/, 1 /*port*/, 1 /*step*/, 20 /*fl*/, 250 /*ll*/);
-  putstr("DAC Buffer setup\n");
-#endif
-
-#if 0
-  //putstr("ENTER INT\n");
-  for(i=0;i<8;i++)
-    if(*status & (1<<i)) {
-      //putstr("Clearing buf ");
-      puthex_nl(i);
-      bp_clear_buf(i);
-    }
-  //putstr("EXIT INT\n");
-#endif
diff --git a/firmware/microblaze/apps/cruft/test_db_spi.c b/firmware/microblaze/apps/cruft/test_db_spi.c
deleted file mode 100644
index f4fa98ef1..000000000
--- a/firmware/microblaze/apps/cruft/test_db_spi.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <u2_init.h>
-#include <nonstdio.h>
-#include <hal_io.h>
-#include <spi.h>
-
-int
-main(void)
-{
-  u2_init();
-
-  puts("\ntest_db_spi");
-
-  while(1){
-    spi_transact(SPI_TXONLY, SPI_SS_RX_DB, 0xCC33, 16, SPIF_PUSH_FALL);
-    spi_transact(SPI_TXONLY, SPI_SS_TX_DB, 0x33CC, 16, SPIF_PUSH_FALL);
-  }
-}
diff --git a/firmware/microblaze/apps/cruft/test_i2c.c b/firmware/microblaze/apps/cruft/test_i2c.c
deleted file mode 100644
index f349ead88..000000000
--- a/firmware/microblaze/apps/cruft/test_i2c.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <u2_init.h>		/* FIXME */
-#include <i2c.h>
-#include <usrp2_i2c_addr.h>
-#include <string.h>
-#include <hal_io.h>
-
-
-
-#define ASSERT_TRUE(x) \
-  do { \
-    if (!(x)){ \
-      printf("ASSERT_TRUE failed on line %d\n", __LINE__); \
-      nerrors++; \
-    } \
-  } while(0)
-
-#define ASSERT_FALSE(x) \
-  do { \
-    if (x){ \
-      printf("ASSERT_FALSE failed on line %d\n", __LINE__); \
-      nerrors++; \
-    } \
-  } while(0)
-
-
-#define BUFSIZE 128
-
-int
-main(void)
-{
-  int i;
-  bool ok;
-  int  nerrors = 0;
-  uint8_t buf[BUFSIZE];
-  int not_dev_addr = 0x35;	// no device with this address on the i2c bus.
-  int offset;
-  int len;
-  
-  u2_init();
-
-  puts("test_i2c\n");
-
-  // try writing a non-existent device
-  buf[0] = 0xA5;
-  ok = i2c_write(not_dev_addr, buf, 1);
-  ASSERT_FALSE(ok);
-
-  // try read from non-existent device
-  buf[0] = 0;
-  ok = i2c_read(not_dev_addr, buf, 1);
-  ASSERT_FALSE(ok);
-
-  // try writing eeprom
-  offset = 31;
-  len = 8;
-  memset(buf, 0, sizeof(buf));
-  for (i = 0; i < len; i++)
-    buf[i] = i;
-  ok = eeprom_write(I2C_ADDR_MBOARD, offset, buf, len);
-  ASSERT_TRUE(ok);
-
-  // now try to read it back
-  offset = 31;
-  len = 8;
-  memset(buf, 0, sizeof(buf));
-  ok = eeprom_read(I2C_ADDR_MBOARD, offset, buf, len);
-  ASSERT_TRUE(ok);
-
-  // check result
-  for (i = 0; i < len; i++){
-    if (buf[i] != i){
-      printf("buf[%d] = %d, should be %d\n", i, buf[i], i);
-      nerrors++;
-    }
-  }
-  
-  if (nerrors == 0){
-    output_regs->leds = 0x3;
-    puts("PASSED\n");
-  }
-  else {
-    output_regs->leds = 0x0;
-    puts("FAILED\n");
-  }
-
-  hal_finish();
-  return 0;
-}
-
diff --git a/firmware/microblaze/apps/cruft/test_lsadc.c b/firmware/microblaze/apps/cruft/test_lsadc.c
deleted file mode 100644
index 5fda29cd7..000000000
--- a/firmware/microblaze/apps/cruft/test_lsadc.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <lsadc.h>
-#include <lsdac.h>
-#include <u2_init.h>
-#include <nonstdio.h>
-#include <hal_io.h>
-
-int
-main(void)
-{
-  u2_init();
-
-  puts("\ntest_lsadc");
-
-  uint32_t r;
-
-  unsigned int up_counter = 0;
-  
-  while (1){
-    unsigned int v;
-    v = up_counter;
-
-    lsdac_write_rx(0, v << 0);
-    lsdac_write_rx(2, v << 1);
-
-#if 1
-    r = lsadc_read_rx(0);
-    lsdac_write_rx(1, r & 0x0fff);
-    //puthex32_nl(r);
-#endif
-
-#if 1
-    r = lsadc_read_rx(1);
-    lsdac_write_rx(3, r & 0x0fff);
-    //puthex32_nl(r);
-#endif
-
-    up_counter++;
-  }
-}
diff --git a/firmware/microblaze/apps/cruft/test_lsdac.c b/firmware/microblaze/apps/cruft/test_lsdac.c
deleted file mode 100644
index 8c1bf333b..000000000
--- a/firmware/microblaze/apps/cruft/test_lsdac.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <lsdac.h>
-#include <u2_init.h>
-#include <nonstdio.h>
-#include <hal_io.h>
-
-int
-main(void)
-{
-  u2_init();
-
-  puts("\ntest_lsdac");
-
-  unsigned int up_counter = 0;
-  unsigned int dn_counter = 0;
-
-  while(1){
-    unsigned int v;
-    v = up_counter;
-    lsdac_write_rx(0, v << 0);
-    lsdac_write_rx(1, v << 1);
-    lsdac_write_rx(2, v << 2);
-    lsdac_write_rx(3, v << 3);
-
-    v = up_counter;
-    lsdac_write_tx(0, v << 0);
-    lsdac_write_tx(1, v << 1);
-    lsdac_write_tx(2, v << 2);
-    lsdac_write_tx(3, v << 3);
-
-    up_counter++;
-    dn_counter--;
-  }
-}
diff --git a/firmware/microblaze/apps/cruft/test_phy_comm.c b/firmware/microblaze/apps/cruft/test_phy_comm.c
deleted file mode 100644
index d312ca4cc..000000000
--- a/firmware/microblaze/apps/cruft/test_phy_comm.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-// check communication with ethernet PHY chip
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "hal_io.h"
-#include "ethernet.h"
-#include "pic.h"
-#include "nonstdio.h"
-
-
-#define DELTA_T     12500000  		// .125s (10ns per tick)
-//#define DELTA_T      10000
-
-// debugging output on tx pins
-#define LS_MASK  0xE0000
-#define LS_1000  0x80000
-#define LS_100   0x40000
-#define LS_10    0x20000
-
-
-
-#define U2_ETHERTYPE 0xBEEF
-
-
-static volatile int led_link_up_flag = 0;
-
-/*
- * Called when eth phy state changes (w/ interrupts disabled)
- */
-void
-link_changed_callback(int speed)
-{
-  int v = 0;
-  switch(speed){
-  case 10:
-    v = LS_10;
-    led_link_up_flag = 0x2;
-    break;
-    
-  case 100:
-    v = LS_100;
-    led_link_up_flag = 0x2;
-    break;
-    
-  case 1000:
-    v = LS_100;
-    led_link_up_flag = 0x2;
-    break;
-
-  default:
-    v = 0;
-    led_link_up_flag = 0;
-    break;
-  }
-
-  //hal_gpio_set_tx(v, LS_MASK);	/* set debug bits on d'board */
-
-  putstr("\neth link changed: speed = ");
-  puthex_nl(speed);
-}
-
-void
-timer_handler(unsigned irq)
-{
-  static int led_counter = 0;
-
-  hal_set_timeout(DELTA_T);	// schedule next timeout
-  output_regs->leds = (led_counter++ & 0x1) | led_link_up_flag;
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  putstr("\n test_phy_comm\n");
-
-  pic_register_handler(IRQ_ONETIME, timer_handler);
-  hal_set_timeout(DELTA_T);	// schedule timeout
-
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  //hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111");
-  //hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111");
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-
-  output_regs->phy_ctrl = 1;	/* reset the eth PHY */
-  output_regs->phy_ctrl = 0;
-
-  ethernet_init();
-
-  while(1)
-    ;
-
-  return 0;
-}
diff --git a/firmware/microblaze/apps/cruft/test_ram.c b/firmware/microblaze/apps/cruft/test_ram.c
deleted file mode 100644
index 77ee693f6..000000000
--- a/firmware/microblaze/apps/cruft/test_ram.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <u2_init.h>		/* FIXME */
-#include <sd.h>
-#include <string.h>
-#include <hal_io.h>
-#include <nonstdio.h>
-#include <hal_uart.h>
-
-#define ASSERT_TRUE(x) \
-  do { \
-    if (!(x)){ \
-      printf("ASSERT_TRUE failed on line %d\n", __LINE__); \
-      nerrors++; \
-    } \
-  } while(0)
-
-#define ASSERT_FALSE(x) \
-  do { \
-    if (x){ \
-      printf("ASSERT_FALSE failed on line %d\n", __LINE__); \
-      nerrors++; \
-    } \
-  } while(0)
-
-
-#define BUFSIZE 128
-
-int test_ram()
-{
-  int i,j,k;
-  output_regs->ram_page = 1<<10;
-  
-  extram[0] = 0xDEADBEEF;
-  extram[1] = 0xF00D1234;
-  extram[7] = 0x76543210;
-  
-  output_regs->ram_page = 2<<10;
-  extram[7] = 0x55555555;
-  extram[1] = 0xaaaaaaaa;
-  extram[0] = 0xeeeeeeee;
-  
-  output_regs->ram_page = 1<<10;
-  
-  i = extram[0];
-  k = extram[1];
-  j = extram[7];
-  
-  if((i != 0xDEADBEEF)||(j!=0x76543210)||(k!=0xF00D1234)) {
-    puts("RAM FAIL1!\n");
-    puthex32_nl(i);
-    puthex32_nl(j);
-    puthex32_nl(k);
-    return 0;
-  }
-  
-  output_regs->ram_page = 2<<10;
-
-  j = extram[7];
-  k = extram[1];
-  i = extram[0];
-
-  if((i != 0xeeeeeeee)||(j!=0x55555555)||(k!=0xaaaaaaaa)) {
-    puts("RAM FAIL2!\n");
-    puthex32_nl(i);
-    puthex32_nl(j);
-    puthex32_nl(k);
-    return 0;
-  }
-  return 1;
-}
-
-int
-main(void)
-{
-
-  u2_init();
-  puts("\ntest_ram\n");
-  int success = test_ram();
-  if(success)
-    puts("RAM Passed Tests\n");
-  else
-    puts("RAM Failed\n");
-
-  hal_finish();
-  return 0;
-}
-
diff --git a/firmware/microblaze/apps/cruft/test_sd.c b/firmware/microblaze/apps/cruft/test_sd.c
deleted file mode 100644
index 494432d7f..000000000
--- a/firmware/microblaze/apps/cruft/test_sd.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <u2_init.h>		/* FIXME */
-#include <sd.h>
-#include <string.h>
-#include <hal_io.h>
-#include <nonstdio.h>
-
-
-#define ASSERT_TRUE(x) \
-  do { \
-    if (!(x)){ \
-      printf("ASSERT_TRUE failed on line %d\n", __LINE__); \
-      nerrors++; \
-    } \
-  } while(0)
-
-#define ASSERT_FALSE(x) \
-  do { \
-    if (x){ \
-      printf("ASSERT_FALSE failed on line %d\n", __LINE__); \
-      nerrors++; \
-    } \
-  } while(0)
-
-
-#define BUFSIZE 128
-
-int
-main(void)
-{
-  int i;
-  unsigned char buf[512];
-
-  u2_init();
-
-  puts("\ntest_sd\n");
-  
-
-  i = sd_init();
-  if(i)
-    puts("Successfully Init'ed Card\n");
-  else
-    puts("FAILED INIT of Card\n");
-
-  i = sd_read_block(2048,buf);
-  if(i) {
-    puts("READ Command accepted\n");
-    for(i=0;i<512;i++)
-      if((i&15) == 15)
-	puthex8_nl(buf[i]);
-      else {
-	puthex8(buf[i]);
-	putchar(' ');
-      }
-  }
-  else
-    puts("READ Command Rejected\n");
-  
-  puts("Done");
-  hal_finish();
-  return 0;
-}
-
diff --git a/firmware/microblaze/apps/cruft/timer_test.c b/firmware/microblaze/apps/cruft/timer_test.c
deleted file mode 100644
index 44e80b5f1..000000000
--- a/firmware/microblaze/apps/cruft/timer_test.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include "nonstdio.h"
-#include "hal_io.h"
-
-#define DELTA_T  500  		// 5 us (10ns per tick)
-
-
-void 
-timer_handler(unsigned irq)
-{
-  hal_set_timeout(DELTA_T);
-
-  putstr("Tick: ");
-  puthex_nl(0);
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  // setup timer
-
-  putstr("Setting up timer\n");
-  pic_register_handler(IRQ_ONETIME, timer_handler);
-
-  hal_set_timeout(DELTA_T);
-
-  while (1)
-    ;
-
-  putstr("Done Testing\n");
-  
-  hal_finish();
-  return 1;
-}
diff --git a/firmware/microblaze/apps/cruft/tx_standalone.c b/firmware/microblaze/apps/cruft/tx_standalone.c
deleted file mode 100644
index 1645fa8ba..000000000
--- a/firmware/microblaze/apps/cruft/tx_standalone.c
+++ /dev/null
@@ -1,339 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "memcpy_wa.h"
-#include "dbsm.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define	_AL4 __attribute__((aligned (4)))
-
-#define USE_BUFFER_INTERRUPT	0	// 0 or 1
-
-
-static int timer_delta = MASTER_CLK_RATE/1000;	// tick at 1kHz
-
-/*
- * This program can respond to queries from the host
- * and stream rx samples.
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to eth flow
- * Buffers 4 and 5 are used to double-buffer the eth to DSP Tx  eth flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-#define CPU_TX_BUF 	1	// cpu -> eth
-
-#define	DSP_RX_BUF_0	2	// dsp rx -> eth (double buffer)
-#define	DSP_RX_BUF_1	3	// dsp rx -> eth
-#define	DSP_TX_BUF_0	4	// eth -> dsp tx (double buffer)
-#define	DSP_TX_BUF_1	5	// eth -> dsp tx
-
-
-/*
- * ================================================================
- *      configure DSP RX double buffering state machine
- * ================================================================
- */
-
-
-// 4 lines of ethernet hdr + 1 line (word0)
-// DSP Rx writes timestamp followed by nlines_per_frame of samples
-#define DSP_RX_FIRST_LINE		  5
-#define DSP_RX_SAMPLES_PER_FRAME	128
-#define	DSP_RX_EXTRA_LINES		  1	// writes timestamp
-
-// Receive from DSP Rx
-buf_cmd_args_t dsp_rx_recv_args = {
-  PORT_DSP,
-  DSP_RX_FIRST_LINE,
-  BP_LAST_LINE
-};
-
-// send to ethernet
-buf_cmd_args_t dsp_rx_send_args = {
-  PORT_ETH,
-  0,		// starts with ethernet header in line 0
-  0,		// filled in from last_line register
-};
-
-dbsm_t dsp_rx_sm;	// the state machine
-
-/*
- * ================================================================
- *      configure DSP TX double buffering state machine
- * ================================================================
- */
-
-// 4 lines of ethernet hdr + 2 lines (word0 + timestamp)
-// DSP Tx reads word0 (flags) + timestamp followed by samples
-
-#define DSP_TX_FIRST_LINE		  4
-#define DSP_TX_SAMPLES_PER_FRAME	250	// not used except w/ debugging
-#define	DSP_TX_EXTRA_LINES		  2	// reads word0 + timestamp
-
-// Receive from ethernet
-buf_cmd_args_t dsp_tx_recv_args = {
-  PORT_ETH,
-  0,
-  BP_LAST_LINE
-};
-
-// send to DSP Tx
-buf_cmd_args_t dsp_tx_send_args = {
-  PORT_DSP,
-  DSP_TX_FIRST_LINE,	// starts just past ethernet header
-  0			// filled in from last_line register
-};
-
-dbsm_t dsp_tx_sm;	// the state machine
-
-/*
- * send constant buffer to DSP TX
- */
-static inline void 
-SEND_CONST_TO_DSP_TX(void)
-{
-  bp_send_from_buf(DSP_TX_BUF_0, PORT_DSP, 1,
-		   DSP_TX_FIRST_LINE,
-		   DSP_TX_FIRST_LINE + DSP_TX_EXTRA_LINES + DSP_TX_SAMPLES_PER_FRAME - 1);
-}
-
-// ----------------------------------------------------------------
-
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-void link_changed_callback(int speed);
-static volatile bool link_is_up = false;	// eth handler sets this
-
-
-void
-timer_irq_handler(unsigned irq)
-{
-  hal_set_timeout(timer_delta);	// schedule next timeout
-}
-
-// Tx DSP underrun
-void
-underrun_irq_handler(unsigned irq)
-{
-  dsp_tx_regs->clear_state = 1;
-  bp_clear_buf(DSP_TX_BUF_0);
-  bp_clear_buf(DSP_TX_BUF_1);
-  dbsm_stop(&dsp_tx_sm);
-
-  // FIXME anything else?
-
-  putstr("\nirq: underrun\n");
-}
-
-// Rx DSP overrun
-void
-overrun_irq_handler(unsigned irq)
-{
-  dsp_rx_regs->clear_state = 1;
-  bp_clear_buf(DSP_RX_BUF_0);
-  bp_clear_buf(DSP_RX_BUF_1);
-  dbsm_stop(&dsp_rx_sm);
-
-  // FIXME anything else?
-
-  putstr("\nirq: overrun\n");
-}
-
-static void
-start_tx_transfers(void)
-{
-  bp_clear_buf(DSP_TX_BUF_0);	// FIXME, really goes in state machine
-  bp_clear_buf(DSP_TX_BUF_1);
-
-  // fill everything with a constant 32k + 0j
-
-  uint32_t const_sample = (32000 << 16) | 0;
-  int i;
-  for (i = 0; i < BP_NLINES; i++){
-    buffer_ram(DSP_TX_BUF_0)[i] = const_sample;
-    buffer_ram(DSP_TX_BUF_1)[i] = const_sample;
-  }
-
-  /*
-   * Construct  ethernet header and word0 and preload into two buffers
-   */
-  u2_eth_packet_t	pkt;
-  memset(&pkt, 0, sizeof(pkt));
-  //pkt.ehdr.dst = *host;
-  pkt.ehdr.src = *ethernet_mac_addr();
-  pkt.ehdr.ethertype = U2_ETHERTYPE;
-  u2p_set_word0(&pkt.fixed,
-		U2P_TX_IMMEDIATE | U2P_TX_START_OF_BURST, 0);
-  u2p_set_timestamp(&pkt.fixed, T_NOW);
-
-  memcpy_wa(buffer_ram(DSP_TX_BUF_0), &pkt, sizeof(pkt));
-  memcpy_wa(buffer_ram(DSP_TX_BUF_1), &pkt, sizeof(pkt));
-
-
-  int tx_scale = 256;
-
-  // setup Tx DSP regs
-  dsp_tx_regs->clear_state = 1;			// reset
-  dsp_tx_regs->freq = 408021893;		// 9.5 MHz [2**32 * fc/fsample]
-  dsp_tx_regs->scale_iq = (tx_scale << 16) | tx_scale;
-  dsp_tx_regs->interp_rate = 32;
-
-  // kick off the state machine
-  // dbsm_start(&dsp_rx_sm);
-
-  SEND_CONST_TO_DSP_TX();	// send constant buffer to DSP TX
-}
-
-
-void
-buffer_irq_handler(unsigned irq)
-{
-  uint32_t  status = buffer_pool_status->status;
-
-  if (0){
-    putstr("irq: ");
-    puthex32(status);
-    putchar('\n');
-  }
-
-  if (status & BPS_ERROR_ALL){
-    // FIXME rare path, handle error conditions
-  }
-
-  if (status & BPS_DONE(DSP_TX_BUF_0)){
-    bp_clear_buf(DSP_TX_BUF_0);
-    SEND_CONST_TO_DSP_TX();
-    hal_toggle_leds(0x1);
-  }
-
-}
-
-int
-main(void)
-{
-  u2_init();
-
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  //hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111");
-  //hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111");
-
-  putstr("\ntx_only\n");
-  
-  // Control LEDs
-  hal_set_leds(0x0, 0x3);
-
-  if (USE_BUFFER_INTERRUPT)
-    pic_register_handler(IRQ_BUFFER,   buffer_irq_handler);
-
-  pic_register_handler(IRQ_OVERRUN,  overrun_irq_handler);
-  pic_register_handler(IRQ_UNDERRUN, underrun_irq_handler);
-
-  //pic_register_handler(IRQ_TIMER, timer_irq_handler);
-  //hal_set_timeout(timer_delta);
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-
-  ethernet_init();
-
-  // initialize double buffering state machine for DSP RX -> Ethernet
-  dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	    &dsp_rx_recv_args, &dsp_rx_send_args,
-	    dbsm_nop_inspector);
-
-  // setup receive from ETH
-  // bp_receive_to_buf(CPU_RX_BUF, PORT_ETH, 1, 0, BP_LAST_LINE);
-
-#if 0
-  if (hwconfig_simulation_p()){
-    // If we're simulating, pretend that we got a start command from the host
-    eth_mac_addr_t host = {{ 0x00, 0x0A, 0xE4, 0x3E, 0xD2, 0xD5 }};
-    start_rx_cmd(&host);
-  }
-#endif
-
-  start_tx_transfers();		// send constant buffers to DSP TX
-
-  while(1){
-    if (!USE_BUFFER_INTERRUPT)
-      buffer_irq_handler(0);
-  }
-}
-
-// ----------------------------------------------------------------
-
-// debugging output on tx pins
-#define LS_MASK  0xE0000
-#define LS_1000  0x80000
-#define LS_100   0x40000
-#define LS_10    0x20000
-
-/*
- * Called when eth phy state changes (w/ interrupts disabled)
- */
-void
-link_changed_callback(int speed)
-{
-  int v = 0;
-  switch(speed){
-  case 10:
-    v = LS_10;
-    link_is_up = true;
-    break;
-    
-  case 100:
-    v = LS_100;
-    link_is_up = true;
-    break;
-    
-  case 1000:
-    v = LS_100;
-    link_is_up = true;
-    break;
-
-  default:
-    v = 0;
-    link_is_up = false;
-    break;
-  }
-
-  //hal_gpio_set_tx(v, LS_MASK);	/* set debug bits on d'board */
-
-  // hal_set_leds(link_is_up ? 0x2 : 0x0, 0x2);
-
-  printf("\neth link changed: speed = %d\n", speed);
-}
diff --git a/firmware/microblaze/bootstrap b/firmware/microblaze/bootstrap
deleted file mode 100755
index 26987b0ec..000000000
--- a/firmware/microblaze/bootstrap
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/bin/sh
-#
-# Copyright 2010 Ettus Research LLC
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-
-rm -rf *.cache
-rm -rf libusrp2/.deps
-rm -rf libusrp2p/.deps
-
-aclocal
-autoconf
-libtoolize --automake
-automake --add-missing --gnu --warnings=all
diff --git a/firmware/microblaze/configure.ac b/firmware/microblaze/configure.ac
deleted file mode 100644
index f6986f2dd..000000000
--- a/firmware/microblaze/configure.ac
+++ /dev/null
@@ -1,54 +0,0 @@
-#
-# Copyright 2010 Ettus Research LLC
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-
-##################################################
-## Setup Autotools
-##################################################
-AC_PREREQ(2.60)
-AC_INIT
-AM_INIT_AUTOMAKE(uhd-mb, 0)
-
-##################################################
-## Setup Compiler
-##################################################
-dnl Fix 2.64 cross compile detection for AVR and RTEMS
-dnl by not trying to compile fopen.
-m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64],
-  [m4_foreach([_GCC_LANG], [C, C++, Fortran, Fortran 77],
-     [m4_define([_AC_LANG_IO_PROGRAM(]_GCC_LANG[)], m4_defn([AC_LANG_PROGRAM(]_GCC_LANG[)]))])]) 
-
-AC_PROG_CC([mb-gcc])
-AM_PROG_CC_C_O
-LT_INIT
-
-##################################################
-## Setup Tools
-##################################################
-AC_PATH_PROG([MB_OBJCOPY], [mb-objcopy])
-AC_PATH_PROG([MB_OBJDUMP], [mb-objdump])
-AC_PATH_PROG([HEXDUMP],    [hexdump])
-
-##################################################
-## Create Files
-##################################################
-AC_CONFIG_FILES([ \
-    Makefile \
-    usrp2p/bootloader/Makefile \
-    usrp2/Makefile \
-    usrp2p/Makefile \
-])
-AC_OUTPUT
diff --git a/firmware/microblaze/lib/Makefile.inc b/firmware/microblaze/lib/Makefile.inc
deleted file mode 100644
index 38c630df4..000000000
--- a/firmware/microblaze/lib/Makefile.inc
+++ /dev/null
@@ -1,50 +0,0 @@
-#
-# Copyright 2010 Ettus Research LLC
-#
-# Copyright 2007 Free Software Foundation, Inc.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-
-COMMON_SRCS = \
-	$(top_srcdir)/lib/u2_init.c \
-	$(top_srcdir)/lib/abort.c \
-	$(top_srcdir)/lib/ad9510.c \
-	$(top_srcdir)/lib/bsm12.c \
-	$(top_srcdir)/lib/buffer_pool.c \
-	$(top_srcdir)/lib/clocks.c \
-	$(top_srcdir)/lib/dbsm.c \
-	$(top_srcdir)/lib/eeprom.c \
-	$(top_srcdir)/lib/eth_addrs.c \
-	$(top_srcdir)/lib/eth_mac.c \
-	$(top_srcdir)/lib/_exit.c \
-	$(top_srcdir)/lib/exit.c \
-	$(top_srcdir)/lib/hal_io.c \
-	$(top_srcdir)/lib/hal_uart.c \
-	$(top_srcdir)/lib/i2c.c \
-	$(top_srcdir)/lib/i2c_async.c \
-	$(top_srcdir)/lib/mdelay.c \
-	$(top_srcdir)/lib/memcpy_wa.c \
-	$(top_srcdir)/lib/memset_wa.c \
-	$(top_srcdir)/lib/nonstdio.c \
-	$(top_srcdir)/lib/pic.c \
-	$(top_srcdir)/lib/print_mac_addr.c \
-	$(top_srcdir)/lib/print_rmon_regs.c \
-	$(top_srcdir)/lib/print_buffer.c \
-	$(top_srcdir)/lib/printf.c \
-	$(top_srcdir)/lib/ihex.c \
-	$(top_srcdir)/lib/spi.c \
-	$(top_srcdir)/lib/net_common.c \
-	$(top_srcdir)/lib/arp_cache.c \
-	$(top_srcdir)/lib/banal.c
diff --git a/firmware/microblaze/lib/bootconfig.c b/firmware/microblaze/lib/bootconfig.c
deleted file mode 100644
index 93adc05c2..000000000
--- a/firmware/microblaze/lib/bootconfig.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/* -*- c -*- */
-/*
- * Copyright 2009 Ettus Research LLC
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "bootconfig.h"
-#include "bootconfig_private.h"
-#include <stdint.h>
-#include <stddef.h>
-#include <i2c.h>
-#include <quadradio/i2c_addr.h>
-#include <mdelay.h>
-#include <xilinx_v5_icap.h>
-#include <nonstdio.h>
-
-eeprom_boot_info_t eeprom_shadow;
-
-static eeprom_boot_info_t eeprom_default = {
-  .magic = EEPROM_BOOT_INFO_MAGIC,
-  .nattempts = 1,
-  .next_boot.fpga_image_number = 0,
-  .next_boot.firmware_image_number = 0,
-  .default_boot.fpga_image_number = 0,
-  .default_boot.firmware_image_number = 0
-};
-
-eeprom_boot_info_t *
-_bc_get_eeprom_shadow(void)
-{
-  return &eeprom_shadow;
-}
-
-
-bool
-_bc_write_eeprom_shadow(void)
-{
-  return eeprom_write(I2C_ADDR_MBOARD, BOOT_INFO_OFFSET, &eeprom_shadow, sizeof(eeprom_shadow));
-}
-
-void
-bootconfig_init(void)
-{
-  if (!eeprom_read(I2C_ADDR_MBOARD, BOOT_INFO_OFFSET, &eeprom_shadow, sizeof(eeprom_shadow))
-      || eeprom_shadow.magic != EEPROM_BOOT_INFO_MAGIC){
-    eeprom_shadow = eeprom_default;
-    _bc_write_eeprom_shadow();
-  }
-}
-
-bootconfig_t 
-bootconfig_get_default(void)
-{
-  return eeprom_shadow.default_boot;
-}
-
-bool
-bootconfig_set_default(bootconfig_t bc)
-{
-  if (!validate_bootconfig(bc))
-    return false;
-
-  eeprom_shadow.default_boot  = bc;
-  eeprom_shadow.next_boot  = bc;
-  return _bc_write_eeprom_shadow();
-}
-
-void
-bootconfig_boot(bootconfig_t bc)
-{
-  if (!validate_bootconfig(bc))
-    return;
-
-  eeprom_shadow.next_boot = bc;
-  eeprom_shadow.nattempts = 1;
-  _bc_write_eeprom_shadow();
-
-  if (1){
-    puts("\nbootconfig: chaining to FPGA slot 0 bootloader");
-    mdelay(100);
-  }
-
-  while (1){
-    // Reload fpga with code from SPI flash address 0x0.
-    icap_reload_fpga(0x00000000);
-  }
-}  
diff --git a/firmware/microblaze/lib/bsm12.c b/firmware/microblaze/lib/bsm12.c
deleted file mode 100644
index 3f17fe42d..000000000
--- a/firmware/microblaze/lib/bsm12.c
+++ /dev/null
@@ -1,319 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2009 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/*
- * buffer state machine: 1 input to two outputs
- *
- * Typically used to read packets from the ethernet and then after inspecting,
- * handle the packet in firmware or pass it on to 1 of the 2 buffer destinations.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "bsm12.h"
-#include "memory_map.h"
-#include "buffer_pool.h"
-#include <stdbool.h>
-#include "nonstdio.h"
-#include <stdlib.h>
-
-typedef enum {
-  BS_EMPTY,
-  BS_FILLING,
-  BS_FULL,
-  BS_EMPTYING,
-} buffer_state_t;
-
-static buffer_state_t buffer_state[NBUFFERS];
-static uint32_t last_send_ctrl[NBUFFERS];
-static int8_t  buffer_target[NBUFFERS];	    // -1, 0 or 1.
-static uint8_t buffer_dst[NBUFFERS];	    // 0 or 1. Valid only when BF_EMPTYING
-
-#define ST_IDLE (-1)
-
-void
-bsm12_init(bsm12_t *sm, int buf0,
-	   const buf_cmd_args_t *recv,
-	   const buf_cmd_args_t *send0,
-	   const buf_cmd_args_t *send1,
-	   bsm12_inspector_t inspect)
-{
-  if (buf0 & 0x3)	// precondition: buf0 % 4 == 0
-    abort();
-
-  sm->buf0 = buf0;
-  sm->running = false;
-  sm->recv_args = *recv;
-  sm->send_args[0] = *send0;
-  sm->send_args[1] = *send1;
-
-  sm->rx_state = ST_IDLE;
-  sm->tx_state[0] = ST_IDLE;
-  sm->tx_state[1] = ST_IDLE;
-
-  sm->inspect = inspect;
-
-  sm->bps_error = BPS_ERROR(buf0 + 0) | BPS_ERROR(buf0 + 1) | BPS_ERROR(buf0 + 2);
-  sm->bps_done  = BPS_DONE(buf0 + 0)  | BPS_DONE(buf0 + 1)  | BPS_DONE(buf0 + 2);
-  sm->bps_error_or_done = sm->bps_error | sm->bps_done;
-
-  // How much to adjust the last_line register.
-  // It's 1 for everything but the ethernet.
-  sm->last_line_adj = recv->port == PORT_ETH ? 3 : 1;
-
-  buffer_state[sm->buf0 + 0] = BS_EMPTY;
-  buffer_state[sm->buf0 + 1] = BS_EMPTY;
-  buffer_state[sm->buf0 + 2] = BS_EMPTY;
-
-  buffer_target[sm->buf0 + 0] = -1;
-  buffer_target[sm->buf0 + 1] = -1;
-  buffer_target[sm->buf0 + 2] = -1;
-
-  for (int i = 0; i < NBUFFERS; i++)
-    sm->next_buf[i] = buf0;
-
-  sm->next_buf[buf0 + 0] = buf0 + 1;
-  sm->next_buf[buf0 + 1] = buf0 + 2;
-  sm->next_buf[buf0 + 2] = buf0 + 0;
-
-  for (int i = 0; i < 3; i++){
-    sm->precomputed_receive_to_buf_ctrl_word[i] =
-      (BPC_READ
-       | BPC_BUFFER(sm->buf0 + i)
-       | BPC_PORT(sm->recv_args.port)
-       | BPC_STEP(1)
-       | BPC_FIRST_LINE(sm->recv_args.first_line)
-       | BPC_LAST_LINE(sm->recv_args.last_line));
-    
-    for (int j = 0; j < 2; j++){
-      sm->precomputed_send_from_buf_ctrl_word[i][j] =
-	(BPC_WRITE
-	 | BPC_BUFFER(sm->buf0 + i)
-	 | BPC_PORT(sm->send_args[j].port)
-	 | BPC_STEP(1)
-	 | BPC_FIRST_LINE(sm->send_args[j].first_line)
-	 | BPC_LAST_LINE(0));		// last line filled in at runtime
-    }
-  }
-}
-
-static inline void
-bsm12_receive_to_buf(bsm12_t *sm, int bufno)
-{
-  buffer_pool_ctrl->ctrl = sm->precomputed_receive_to_buf_ctrl_word[bufno & 0x3];
-}
-
-static inline void
-bsm12_send_from_buf(bsm12_t *sm, int bufno, int dst_idx)
-{
-  dst_idx &= 0x1;
-
-  uint32_t t = 
-    (sm->precomputed_send_from_buf_ctrl_word[bufno & 0x3][dst_idx]
-     | BPC_LAST_LINE(buffer_pool_status->last_line[bufno] - sm->last_line_adj));
-
-  buffer_pool_ctrl->ctrl = t;
-  last_send_ctrl[bufno] = t;
-  buffer_dst[bufno] = dst_idx;
-}
-
-static inline void
-bsm12_resend_from_buf(bsm12_t *sm, int bufno)
-{
-  buffer_pool_ctrl->ctrl = last_send_ctrl[bufno];
-}
-
-void
-bsm12_start(bsm12_t *sm)
-{
-  sm->running = true;
-
-  buffer_state[sm->buf0 + 0] = BS_EMPTY;
-  buffer_state[sm->buf0 + 1] = BS_EMPTY;
-  buffer_state[sm->buf0 + 2] = BS_EMPTY;
-
-  buffer_target[sm->buf0 + 0] = -1;
-  buffer_target[sm->buf0 + 1] = -1;
-  buffer_target[sm->buf0 + 2] = -1;
-
-  bp_clear_buf(sm->buf0 + 0);
-  bp_clear_buf(sm->buf0 + 1);
-  bp_clear_buf(sm->buf0 + 2);
-
-  sm->rx_state = 0;
-  sm->tx_state[0] = ST_IDLE;
-  sm->tx_state[1] = ST_IDLE;
-  bsm12_receive_to_buf(sm, sm->buf0);
-  buffer_state[sm->buf0] = BS_FILLING;
-}
-
-void
-bsm12_stop(bsm12_t *sm)
-{
-  sm->running = false;
-  bp_clear_buf(sm->buf0 + 0);
-  bp_clear_buf(sm->buf0 + 1);
-  bp_clear_buf(sm->buf0 + 2);
-  buffer_state[sm->buf0 + 0] = BS_EMPTY;
-  buffer_state[sm->buf0 + 1] = BS_EMPTY;
-  buffer_state[sm->buf0 + 2] = BS_EMPTY;
-}
-
-static void bsm12_process_helper(bsm12_t *sm, int buf_this);
-static void bsm12_error_helper(bsm12_t *sm, int buf_this);
-
-void
-bsm12_process_status(bsm12_t *sm, uint32_t status)
-{
-  // anything for us?
-  if ((status & sm->bps_error_or_done) == 0 || !sm->running)
-    return;
-
-  if (status & sm->bps_error){
-    // Most likely an ethernet Rx error.  We just restart the transfer.
-    if (status & (BPS_ERROR(sm->buf0 + 0)))
-      bsm12_error_helper(sm, sm->buf0 + 0);
-
-    if (status & (BPS_ERROR(sm->buf0 + 1)))
-      bsm12_error_helper(sm, sm->buf0 + 1);
-
-    if (status & (BPS_ERROR(sm->buf0 + 2)))
-      bsm12_error_helper(sm, sm->buf0 + 2);
-  }
-
-  if (status & BPS_DONE(sm->buf0 + 0))
-    bsm12_process_helper(sm, sm->buf0 + 0);
-
-  if (status & BPS_DONE(sm->buf0 + 1))
-    bsm12_process_helper(sm, sm->buf0 + 1);
-
-  if (status & BPS_DONE(sm->buf0 + 2))
-    bsm12_process_helper(sm, sm->buf0 + 2);
-}
-
-static void 
-bsm12_process_helper(bsm12_t *sm, int buf_this)
-{
-  bp_clear_buf(buf_this);
-
-  if (buffer_state[buf_this] == BS_FILLING){
-
-    buffer_state[buf_this] = BS_FULL;
-    buffer_target[buf_this] = -1;
-
-    //
-    // where does this packet go?
-    //
-    int dst = sm->inspect(sm, buf_this);
-    if (dst == -1){
-      //
-      // f/w handled the packet; refill the buffer
-      //
-      bsm12_receive_to_buf(sm, buf_this);
-      buffer_state[buf_this] = BS_FILLING;
-      buffer_target[buf_this] = -1;
-      sm->rx_state = buf_this & 0x3;
-    }
-    else {	// goes to dst 0 or 1
-      //
-      // If the next buffer is empty, start a receive on it
-      //
-      int t = sm->next_buf[buf_this];
-      if (buffer_state[t] == BS_EMPTY){
-	bsm12_receive_to_buf(sm, t);
-	buffer_state[t] = BS_FILLING;
-	buffer_target[t] = -1;
-	sm->rx_state = t & 0x3;
-      }
-      else
-	sm->rx_state = ST_IDLE;
-
-      //
-      // If the destination is idle, start the xfer, othewise remember it
-      //
-      if (sm->tx_state[dst] == ST_IDLE){
-	bsm12_send_from_buf(sm, buf_this, dst);
-	sm->tx_state[dst] = buf_this & 0x3;
-	buffer_state[buf_this] = BS_EMPTYING;
-	buffer_target[buf_this] = -1;
-      }
-      else {
-	buffer_target[buf_this] = dst;
-      }
-    }
-  }
-
-  else {    // BS_EMPTYING
-
-    buffer_state[buf_this] = BS_EMPTY;
-    buffer_target[buf_this] = -1;
-
-    if (sm->rx_state == ST_IDLE){	// fire off another receive
-      sm->rx_state = buf_this & 0x3;
-      bsm12_receive_to_buf(sm, buf_this);
-      buffer_state[buf_this] = BS_FILLING;
-      buffer_target[buf_this] = -1;
-    }
-
-    int dst = buffer_dst[buf_this];	// the dst we were emptying into
-    // is the next buffer full and for us?
-    int t = sm->next_buf[buf_this];
-    if (buffer_target[t] == dst){		// yes,
-      bsm12_send_from_buf(sm, t, dst);		// send it
-      buffer_state[t] = BS_EMPTYING;
-      buffer_target[t] = -1;
-      sm->tx_state[dst] = t & 0x3;
-    }
-    // how about the one after that?
-    else if (buffer_target[t=sm->next_buf[t]] == dst){	// yes,
-      bsm12_send_from_buf(sm, t, dst);			// send it
-      buffer_state[t] = BS_EMPTYING;
-      buffer_target[t] = -1;
-      sm->tx_state[dst] = t & 0x3;
-    }
-    else {
-      sm->tx_state[dst] = ST_IDLE;
-    }
-  }
-}
-
-static void
-bsm12_error_helper(bsm12_t *sm, int buf_this)
-{
-  bp_clear_buf(buf_this);		  // clears ERROR flag
-
-  if (buffer_state[buf_this] == BS_FILLING){
-    bsm12_receive_to_buf(sm, buf_this);	  // restart the xfer
-  }
-  else { // buffer was emptying
-    bsm12_resend_from_buf(sm, buf_this);  // restart the xfer
-  }
-}
-
-
-void
-bsm12_handle_tx_underrun(bsm12_t *sm)
-{
-}
-
-void
-bsm12_handle_rx_overrun(bsm12_t *sm)
-{
-}
diff --git a/firmware/microblaze/lib/bsm12.h b/firmware/microblaze/lib/bsm12.h
deleted file mode 100644
index b8e576b79..000000000
--- a/firmware/microblaze/lib/bsm12.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2009 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef INCLUDED_BSM12_H
-#define INCLUDED_BSM12_H
-
-#include "dbsm.h"
-#include "memory_map.h"
-
-/*!
- * buffer state machine: 1 input to two outputs
- *
- * Typically used to read packets from the ethernet and then after inspecting,
- * handle the packet in firmware or pass it on to 1 of the 2 buffer destinations.
- */
-
-struct _bsm12;
-typedef struct _bsm12 bsm12_t;
-
-/*!
- * Pointer to function that does packet inspection.
- *
- * \param sm		the state machine
- * \param buf_this	the index of the buffer to inspect and/or pass on
- *
- * Returns -1, 0 or 1.  If it returns -1, it means that the s/w
- * handled that packet, and that it should NOT be passed on to one of
- * the buffer endpoints.  0 indicates the first endpoint, 1 the second endpoint.
- */
-typedef int (*bsm12_inspector_t)(bsm12_t *sm, int buf_this);
-
-
-/*!
- * buffer state machine: 1 input to two outputs
- */
-struct _bsm12
-{
-  uint8_t	  buf0;	 // This machine uses buf0, buf0+1 and buf0+2.  buf0 % 4 == 0.
-  uint8_t	  running;
-  int8_t	  rx_state;	// -1, 0, 1, 2  which buffer we're receiving into
-  int8_t	  tx_state[2];	// -1, 0, 1, 2  which buffer we're sending from
-  buf_cmd_args_t  recv_args;
-  buf_cmd_args_t  send_args[2];
-  bsm12_inspector_t inspect;
-  int		  last_line_adj;
-  uint32_t	  bps_error;
-  uint32_t	  bps_done;
-  uint32_t	  bps_error_or_done;
-  uint8_t	  next_buf[NBUFFERS];
-  uint32_t	  precomputed_receive_to_buf_ctrl_word[3];
-  uint32_t	  precomputed_send_from_buf_ctrl_word[4][2];  // really only 3, not 4 
-                                                              //   (easier addr comp)
-};
-
-void bsm12_init(bsm12_t *sm, int buf0,
-		const buf_cmd_args_t *recv,
-		const buf_cmd_args_t *send0,
-		const buf_cmd_args_t *send1,
-		bsm12_inspector_t inspect);
-
-void bsm12_start(bsm12_t *sm);
-void bsm12_stop(bsm12_t *sm);
-void bsm12_process_status(bsm12_t *sm, uint32_t status);
-void bsm12_handle_tx_underrun(bsm12_t *sm);
-void bsm12_handle_rx_overrun(bsm12_t *sm);
-
-
-#endif /* INCLUDED_BSM12_H */
diff --git a/firmware/microblaze/lib/buffer_pool.c b/firmware/microblaze/lib/buffer_pool.c
deleted file mode 100644
index 77e7c5213..000000000
--- a/firmware/microblaze/lib/buffer_pool.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "memory_map.h"
-#include "buffer_pool.h"
-#include "hal_io.h" 
-
-void
-bp_init(void)
-{
-  int i;
-  bp_disable_port(PORT_SERDES);
-  bp_disable_port(PORT_DSP);
-  bp_disable_port(PORT_ETH);
-  bp_disable_port(PORT_RAM);
-
-  for (i = 0; i < NBUFFERS; i++)
-    bp_clear_buf(i);
-}
-
-#ifndef INLINE_BUFFER_POOL
-
-void
-bp_clear_buf(int bufnum)
-{
-  buffer_pool_ctrl->ctrl = BPC_BUFFER(bufnum) | BPC_PORT_NIL | BPC_CLR;
-}
-
-void
-bp_disable_port(int portnum) 
-{
-  // disable buffer connections to this port
-  buffer_pool_ctrl->ctrl = BPC_BUFFER_NIL | BPC_PORT(portnum);
-}
-
-void
-bp_receive_to_buf(int bufnum, int port, int step, int fl, int ll)
-{
-  buffer_pool_ctrl->ctrl = (BPC_READ
-			    | BPC_BUFFER(bufnum)
-			    | BPC_PORT(port)
-			    | BPC_STEP(step)
-			    | BPC_FIRST_LINE(fl)
-			    | BPC_LAST_LINE(ll));
-}
-
-void
-bp_send_from_buf(int bufnum, int port, int step, int fl, int ll)
-{
-  buffer_pool_ctrl->ctrl = (BPC_WRITE
-			    | BPC_BUFFER(bufnum)
-			    | BPC_PORT(port)
-			    | BPC_STEP(step)
-			    | BPC_FIRST_LINE(fl)
-			    | BPC_LAST_LINE(ll));
-}
-
-#endif
diff --git a/firmware/microblaze/lib/buffer_pool.h b/firmware/microblaze/lib/buffer_pool.h
deleted file mode 100644
index 145b20f8d..000000000
--- a/firmware/microblaze/lib/buffer_pool.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef INCLUDED_BUFFER_POOL_H
-#define INCLUDED_BUFFER_POOL_H
-
-#include "memory_map.h"
-
-// Buffer Pool Management
-
-
-// define to have common buffer operations inlined
-#define INLINE_BUFFER_POOL 1
-
-void bp_init(void);
-
-#ifndef INLINE_BUFFER_POOL
-
-void bp_clear_buf(int bufnum);
-void bp_disable_port(int portnum);
-void bp_receive_to_buf(int bufnum, int port, int step, int fl, int ll);
-void bp_send_from_buf(int bufnum, int port, int step, int fl, int ll);
-
-#else
-
-static inline void
-bp_clear_buf(int bufnum)
-{
-  buffer_pool_ctrl->ctrl = BPC_BUFFER(bufnum) | BPC_PORT_NIL | BPC_CLR;
-}
-
-static inline void
-bp_disable_port(int portnum) 
-{
-  // disable buffer connections to this port
-  buffer_pool_ctrl->ctrl = BPC_BUFFER_NIL | BPC_PORT(portnum);
-}
-
-static inline void
-bp_receive_to_buf(int bufnum, int port, int step, int fl, int ll)
-{
-  buffer_pool_ctrl->ctrl = (BPC_READ
-			    | BPC_BUFFER(bufnum)
-			    | BPC_PORT(port)
-			    | BPC_STEP(step)
-			    | BPC_FIRST_LINE(fl)
-			    | BPC_LAST_LINE(ll));
-}
-
-static inline void
-bp_send_from_buf(int bufnum, int port, int step, int fl, int ll)
-{
-  buffer_pool_ctrl->ctrl = (BPC_WRITE
-			    | BPC_BUFFER(bufnum)
-			    | BPC_PORT(port)
-			    | BPC_STEP(step)
-			    | BPC_FIRST_LINE(fl)
-			    | BPC_LAST_LINE(ll));
-}
-#endif
-#endif
diff --git a/firmware/microblaze/lib/dbsm.c b/firmware/microblaze/lib/dbsm.c
deleted file mode 100644
index cee343eaa..000000000
--- a/firmware/microblaze/lib/dbsm.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/*
- * Double Buffering State Machine
- */
-
-#include "dbsm.h"
-#include "memory_map.h"
-#include "buffer_pool.h"
-#include <stdbool.h>
-#include "nonstdio.h"
-#include <stdlib.h>
-
-typedef enum {
-  BS_EMPTY,
-  BS_FILLING,
-  BS_FULL,
-  BS_EMPTYING,
-} buffer_state_t;
-
-static buffer_state_t buffer_state[NBUFFERS];
-
-bool
-dbsm_nop_inspector(dbsm_t *sm, int buf_this)
-{
-  return false;
-}
-
-void
-dbsm_init(dbsm_t *sm, int buf0,
-	  const buf_cmd_args_t *recv, const buf_cmd_args_t *send,
-	  inspector_t inspect)
-{
-  if (buf0 & 0x1)	// must be even
-    abort();
-
-  sm->buf0 = buf0;
-  sm->running = false;
-  sm->recv_args = *recv;
-  sm->send_args = *send;
-
-  sm->rx_idle = true;
-  sm->tx_idle = true;
-
-  sm->inspect = inspect;
-
-  // How much to adjust the last_line register.
-  // It's 1 for everything but the ethernet.
-  //sm->last_line_adj = recv->port == PORT_ETH ? 3 : 1;
-  sm->last_line_adj = 1;
-
-  buffer_state[sm->buf0] = BS_EMPTY;
-  buffer_state[sm->buf0 ^ 1] = BS_EMPTY;
-
-  sm->precomputed_receive_to_buf_ctrl_word[0] =
-    (BPC_READ
-     | BPC_BUFFER(sm->buf0)
-     | BPC_PORT(sm->recv_args.port)
-     | BPC_STEP(1)
-     | BPC_FIRST_LINE(sm->recv_args.first_line)
-     | BPC_LAST_LINE(sm->recv_args.last_line));
-    
-  sm->precomputed_receive_to_buf_ctrl_word[1] =
-    (BPC_READ
-     | BPC_BUFFER(sm->buf0 ^ 1)
-     | BPC_PORT(sm->recv_args.port)
-     | BPC_STEP(1)
-     | BPC_FIRST_LINE(sm->recv_args.first_line)
-     | BPC_LAST_LINE(sm->recv_args.last_line));
-    
-  sm->precomputed_send_from_buf_ctrl_word[0] =
-    (BPC_WRITE
-     | BPC_BUFFER(sm->buf0)
-     | BPC_PORT(sm->send_args.port)
-     | BPC_STEP(1)
-     | BPC_FIRST_LINE(sm->send_args.first_line)
-     | BPC_LAST_LINE(0));		// last line filled in at runtime
-    
-  sm->precomputed_send_from_buf_ctrl_word[1] =
-    (BPC_WRITE
-     | BPC_BUFFER(sm->buf0 ^ 1)
-     | BPC_PORT(sm->send_args.port)
-     | BPC_STEP(1)
-     | BPC_FIRST_LINE(sm->send_args.first_line)
-     | BPC_LAST_LINE(0));		// last line filled in at runtime
-    
-}
-
-static inline void
-dbsm_receive_to_buf(dbsm_t *sm, int bufno)
-{
-  buffer_pool_ctrl->ctrl = sm->precomputed_receive_to_buf_ctrl_word[bufno & 1];
-}
-
-static inline void
-dbsm_send_from_buf(dbsm_t *sm, int bufno)
-{
-  buffer_pool_ctrl->ctrl =
-    (sm->precomputed_send_from_buf_ctrl_word[bufno & 1]
-     | BPC_LAST_LINE(buffer_pool_status->last_line[bufno] - sm->last_line_adj));
-}
-
-void
-dbsm_start(dbsm_t *sm)
-{
-  // printf("dbsm_start: buf0 = %d, recv_port = %d\n", sm->buf0, sm->recv_args.port);
-
-  sm->running = true;
-
-  buffer_state[sm->buf0] = BS_EMPTY;
-  buffer_state[sm->buf0 ^ 1] = BS_EMPTY;
-
-  bp_clear_buf(sm->buf0);
-  bp_clear_buf(sm->buf0 ^ 1);
-
-  sm->tx_idle = true;
-  sm->rx_idle = false;
-  dbsm_receive_to_buf(sm, sm->buf0);
-  buffer_state[sm->buf0] = BS_FILLING;
-
-}
-
-
-void
-dbsm_stop(dbsm_t *sm)
-{
-  sm->running = false;
-  bp_clear_buf(sm->buf0);
-  bp_clear_buf(sm->buf0 ^ 1);
-  buffer_state[sm->buf0] = BS_EMPTY;
-  buffer_state[sm->buf0 ^ 1] = BS_EMPTY;
-}
-
-static void dbsm_process_helper(dbsm_t *sm, int buf_this);
-static void dbsm_error_helper(dbsm_t *sm, int buf_this);
-
-void
-dbsm_process_status(dbsm_t *sm, uint32_t status)
-{
-  if (!sm->running)
-    return;
-
-  if (status & (BPS_ERROR(sm->buf0) | BPS_ERROR(sm->buf0 ^ 1))){
-    putchar('E');
-    // Most likely an ethernet Rx error.  We just restart the transfer.
-    if (status & (BPS_ERROR(sm->buf0)))
-      dbsm_error_helper(sm, sm->buf0);
-      //dbsm_process_helper(sm, sm->buf0); //forward errors
-
-    if (status & (BPS_ERROR(sm->buf0 ^ 1)))
-      dbsm_error_helper(sm, sm->buf0 ^ 1);
-      //dbsm_process_helper(sm, sm->buf0 ^ 1); //forward errors
-  }
-
-  if (status & BPS_DONE(sm->buf0))
-    dbsm_process_helper(sm, sm->buf0);
-
-  if (status & BPS_DONE(sm->buf0 ^ 1))
-    dbsm_process_helper(sm, sm->buf0 ^ 1);
-}
-
-static void
-dbsm_process_helper(dbsm_t *sm, int buf_this)
-{
-  int buf_other = buf_this ^ 1;
-
-  bp_clear_buf(buf_this);
-
-  if (buffer_state[buf_this] == BS_FILLING){
-    buffer_state[buf_this] = BS_FULL;
-    //
-    // does s/w handle this packet?
-    //
-    if (sm->inspect(sm, buf_this)){
-      // s/w handled the packet; refill the buffer
-      dbsm_receive_to_buf(sm, buf_this);
-      buffer_state[buf_this] = BS_FILLING;
-    }
-
-    else {	// s/w didn't handle this; pass it on
-
-      if(buffer_state[buf_other] == BS_EMPTY){
-	dbsm_receive_to_buf(sm, buf_other);
-	buffer_state[buf_other] = BS_FILLING;
-      }
-      else
-	sm->rx_idle = true;
-
-      if (sm->tx_idle){
-	sm->tx_idle = false;
-	dbsm_send_from_buf(sm, buf_this);
-	buffer_state[buf_this] = BS_EMPTYING;
-      }
-    }
-  }
-  else {  // buffer was emptying
-    buffer_state[buf_this] = BS_EMPTY;
-    if (sm->rx_idle){
-      sm->rx_idle = false;
-      dbsm_receive_to_buf(sm, buf_this);
-      buffer_state[buf_this] = BS_FILLING;
-    }
-    if (buffer_state[buf_other] == BS_FULL){
-      dbsm_send_from_buf(sm, buf_other);
-      buffer_state[buf_other] = BS_EMPTYING;
-    }
-    else
-      sm->tx_idle = true;
-  }
-}
-
-static void
-dbsm_error_helper(dbsm_t *sm, int buf_this)
-{
-  bp_clear_buf(buf_this);		// clears ERROR flag
-
-  if (buffer_state[buf_this] == BS_FILLING){
-    dbsm_receive_to_buf(sm, buf_this);	  // restart the xfer
-  }
-  else { // buffer was emptying
-    dbsm_send_from_buf(sm, buf_this);	  // restart the xfer
-  }
-}
-
-/*
- * Handle DSP Tx underrun
- */
-void
-dbsm_handle_tx_underrun(dbsm_t *sm)
-{
-  // clear the DSP Tx state machine
-  sr_tx_ctrl->clear_state = 1;
-
-  // If there's a buffer that's empyting, clear it & flush xfer
-
-  if (buffer_state[sm->buf0] == BS_EMPTYING){
-    bp_clear_buf(sm->buf0);
-    sr_tx_ctrl->clear_state = 1;	// flush partial packet
-    // drop frame in progress on ground.  Pretend it finished
-    dbsm_process_helper(sm, sm->buf0);
-  }
-  else if (buffer_state[sm->buf0 ^ 1] == BS_EMPTYING){
-    bp_clear_buf(sm->buf0 ^ 1);
-    sr_tx_ctrl->clear_state = 1;	// flush partial packet
-    // drop frame in progress on ground.  Pretend it finished
-    dbsm_process_helper(sm, sm->buf0 ^ 1);
-  }
-}
-
-/*
- * Handle DSP Rx overrun
- */
-void
-dbsm_handle_rx_overrun(dbsm_t *sm)
-{
-  sr_rx_ctrl->clear_overrun = 1;
-
-  // If there's a buffer that's filling, clear it.
-  // Any restart will be the job of the caller.
-  
-  if (buffer_state[sm->buf0] == BS_FILLING)
-    bp_clear_buf(sm->buf0);
-
-  if (buffer_state[sm->buf0 ^1] == BS_FILLING)
-    bp_clear_buf(sm->buf0 ^ 1);
-}
-
-void 
-dbsm_wait_for_opening(dbsm_t *sm)
-{
-  if (buffer_state[sm->buf0] == BS_EMPTYING){
-    // wait for xfer to complete
-    int mask = BPS_DONE(sm->buf0) | BPS_ERROR(sm->buf0) | BPS_IDLE(sm->buf0);
-    while ((buffer_pool_status->status & mask) == 0)
-      ;
-  }
-  else if (buffer_state[sm->buf0 ^ 1] == BS_EMPTYING){
-    // wait for xfer to complete
-    int mask = BPS_DONE(sm->buf0 ^ 1) | BPS_ERROR(sm->buf0 ^ 1) | BPS_IDLE(sm->buf0 ^ 1);
-    while ((buffer_pool_status->status & mask) == 0)
-      ;
-  }
-}
diff --git a/firmware/microblaze/lib/dbsm.h b/firmware/microblaze/lib/dbsm.h
deleted file mode 100644
index cb7e12fc3..000000000
--- a/firmware/microblaze/lib/dbsm.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef INCLUDED_DBSM_H
-#define INCLUDED_DBSM_H
-
-/*
- * Double Buffering State Machine
- */
-
-#include <stdint.h>
-#include <stdbool.h>
-
-struct _dbsm;
-typedef struct _dbsm dbsm_t;
-
-/*
- * pointer to function that does packet inspection.
- *
- * If one of these returns true, it means that the s/w
- * handled that packet, and that it should NOT be passed
- * on to the normal destination port.
- */
-typedef bool (*inspector_t)(dbsm_t *sm, int buf_this);
-
-bool dbsm_nop_inspector(dbsm_t *sm, int buf_this);	// returns false
-
-
-typedef struct
-{
-  uint16_t	port;
-  uint16_t	first_line;
-  uint16_t	last_line;
-} buf_cmd_args_t;
-
-/*!
- * double buffer state machine
- */
-struct _dbsm
-{
-  uint8_t	  buf0;	     // Must be even. This machine uses buf0 and buf0+1
-  uint8_t	  running;
-  uint8_t	  rx_idle;
-  uint8_t	  tx_idle;
-  buf_cmd_args_t  recv_args;
-  buf_cmd_args_t  send_args;
-  inspector_t	  inspect;
-  uint32_t	  precomputed_receive_to_buf_ctrl_word[2];
-  uint32_t	  precomputed_send_from_buf_ctrl_word[2];
-  int		  last_line_adj;
-};
-
-void dbsm_init(dbsm_t *sm, int buf0,
-	       const buf_cmd_args_t *recv, const buf_cmd_args_t *send,
-	       inspector_t inspect);
-
-void dbsm_start(dbsm_t *sm);
-void dbsm_stop(dbsm_t *sm);
-void dbsm_process_status(dbsm_t *sm, uint32_t status);
-void dbsm_handle_tx_underrun(dbsm_t *sm);
-void dbsm_handle_rx_overrun(dbsm_t *sm);
-
-/*
- * The cpu calls this when it want to ensure that it can send a buffer
- * to the same destination being used by this state machine.
- *
- * If neither buffer is EMPTYING it returns immediately.  If a buffer
- * is EMPYTING, it waits for the h/w to transition to the DONE or
- * ERROR state.
- *
- * When this function returns, the caller queues it's buffer and busy
- * waits for it to complete.
- */
-void dbsm_wait_for_opening(dbsm_t *sm);
-
-#endif /* INCLUDED_DBSM_H */
diff --git a/firmware/microblaze/lib/gdbstub2.c b/firmware/microblaze/lib/gdbstub2.c
deleted file mode 100644
index 4c63dfce2..000000000
--- a/firmware/microblaze/lib/gdbstub2.c
+++ /dev/null
@@ -1,506 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2009 Ettus Research LLC
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/*
- * Implement a eensy weensy part of the GDB Remote Serial Protocol
- *
- * See Appendix D of the GDB manual
- *
- *   m<addr>,<length> 		-- read <length> bytes of memory starting at <addr>
- *     Reply:
- *     XX...		XX... is memory contents in hex
- *     ENN		ENN   NN is a hex error number
- *
- *   M<addr>,<length>:XX...     -- write memory, data in hex
- *     Reply:
- *     OK		for success
- *     ENN		for an error.  NN is a hex error number
- *
- *   X<addr>,<length>:XX...     -- write memory, data in binary
- *     Reply:
- *     OK		for success
- *     ENN		for an error.  NN is a hex error number
- *
- *   c<addr>			-- continue.  <addr> is the address to resume (goto).
- *     Reply: <none>
- *
- *   \x80 New Format...
- */
-
-#include "gdbstub2.h"
-#include "loader_parser.h"
-#include "hal_uart.h"
-#include <stdbool.h>
-#include <stddef.h>
-
-#define MAX_PACKET	1024
-
-/*
- * Get raw character from serial port, no echo.
- */
-static inline int 
-gdb_getc(void)
-{
-  return hal_uart_getc();
-}
-
-/*
- * Put character to serial port.  Raw output.
- */
-static inline void
-gdb_putc(int ch)
-{
-  hal_uart_putc(ch);
-}
-
-// ------------------------------------------------------------------------
-
-#define	GDB_ESCAPE 0x7d
-
-static unsigned char hex_table[16] = { 
-  '0', '1', '2', '3', '4', '5', '6', '7',
-  '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
-};
-
-static int
-put_hex8_checksum(int ch, int checksum)
-{
-  unsigned char t = hex_table[(ch >> 4) & 0xf];
-  checksum += t;
-  gdb_putc(t);
-
-  t = hex_table[ch & 0xf];
-  checksum += t;
-  gdb_putc(t);
-  return checksum;
-}
-
-static void
-put_hex8(int ch)
-{
-  put_hex8_checksum(ch, 0);
-}
-
-static bool
-hex4_to_bin(int ch, int *value)
-{
-  if ('0' <= ch && ch <= '9'){
-    *value = ch - '0';
-    return true;
-  }
-  if ('a' <= ch && ch <= 'f'){
-    *value = ch - 'a' + 10;
-    return true;
-  }
-  if ('A' <= ch && ch <= 'F'){
-    *value = ch - 'A' + 10;
-    return true;
-  }
-  *value = 0;
-  return false;
-}
-
-static bool
-hex8_to_bin(const unsigned char *s, int *value)
-{
-  int v0, v1;
-  if (hex4_to_bin(s[0], &v0) && hex4_to_bin(s[1], &v1)){
-    *value = (v0 << 4) | v1;
-    return true;
-  }
-  return false;
-}
-
-static bool
-hex_to_bin_array(unsigned char *binary_data, const unsigned char *hex_data, size_t nbytes)
-{
-  for (size_t i = 0; i < nbytes; i++){
-    int t;
-    if (!hex8_to_bin(&hex_data[2*i], &t))
-      return false;
-    binary_data[i] = t;
-  }
-  return true;
-}
-
-static bool
-needs_escaping(int ch)
-{
-  return ch == '$' || ch == '#' || ch == GDB_ESCAPE;
-}
-
-/*
- * \brief Wait for a packet.  
- * \param[out] pkt_buf gets the received packet payload.
- * \param[in]  max_size is the maximum number of bytes to write into \p pkt_buf.
- * \param[out] actual_size is the number of bytes written to \p pkt_buf.
- *
- * \returns true iff the payload fits and the checksum is OK.
- *
- * Packets have this format:
- *
- *  $<packet-data>#<checksum>
- *
- * Where <packet-data> is anything and <checksum> is a two byte hex
- * checksum.  In <packet-data> '$', '#' and 0x7d are escaped with 0x7d.
- * The checksum is computed as the modulo 256 sum of all characters
- * btween the leading '$' and the trailing '#' (an 8-bit unsigned
- * checksum).
- */
-static bool
-get_packet(unsigned char *pkt_buf, size_t max_size, size_t *actual_size)
-{
-  typedef enum states {
-    LOOKING_FOR_DOLLAR,
-    LOOKING_FOR_HASH,
-    CSUM1,
-    CSUM2,
-  } state_t;
-
-  *actual_size = 0;
-  unsigned char csum[2] = {0, 0};
-  state_t state = LOOKING_FOR_DOLLAR;
-  size_t  pi = 0;
-
-  while (1){
-    int ch = gdb_getc();
-
-    switch (state){
-    case LOOKING_FOR_DOLLAR:
-      if (ch == '$'){
-	pi = 0;
-	state = LOOKING_FOR_HASH;
-      }
-      else if (ch == '#'){	// most likely missed the $
-	return false;
-      }
-      break;
-	
-    case LOOKING_FOR_HASH:
-      if (ch == '$'){
-	return false;
-      }
-      else if (ch == '#'){
-	state = CSUM1;
-      }
-      else {
-	if (pi >= max_size)	// payload too big
-	  return false;
-
-	if (ch == GDB_ESCAPE)
-	  ch = gdb_getc();
-
-	pkt_buf[pi++] = ch;
-      }
-      break;
-      
-    case CSUM1:
-      csum[0] = ch;
-      state = CSUM2;
-      break;
-
-    case CSUM2:
-      csum[1] = ch;
-      *actual_size = pi;
-
-      // accept .. as a correct checksum
-      if (csum[0] == '.' && csum[1] == '.')
-	return true;
-
-      int expected_checksum;
-      if (!hex8_to_bin(csum, &expected_checksum))
-	return false;
-
-      int checksum = 0;
-      for (size_t i = 0; i < pi; i++)
-	checksum += pkt_buf[i];
-
-      checksum &= 0xff;
-      return checksum == expected_checksum;
-    }
-  }
-}
-
-static void
-put_packet_trailer(int checksum)
-{
-  gdb_putc('#');
-  put_hex8(checksum & 0xff);
-  gdb_putc('\r');
-  gdb_putc('\n');
-}
-
-static void
-put_packet(const unsigned char *pkt_buf, size_t size)
-{
-  gdb_putc('$');
-
-  int checksum = 0;
-  for (size_t i = 0; i < size; i++){
-    int ch = pkt_buf[i];
-    if (needs_escaping(ch))
-      gdb_putc(GDB_ESCAPE);
-    gdb_putc(ch);
-    checksum += ch;
-  }
-  put_packet_trailer(checksum);
-}
-
-/*!
- * Read a hex number
- *
- * \param[inout] bufptr - pointer to pointer to buffer (updated on return)
- * \param[in] end - one past end of valid data in buf
- * \param[out] value - the parsed value
- *
- * \returns true iff a valid hex number was read from bufptr
- */
-static bool
-parse_number(const unsigned char **bufptr, const unsigned char *end, unsigned int *value)
-{
-  const unsigned char *buf = *bufptr;
-  unsigned int v = 0;
-  bool valid = false;
-  int nibble;
-
-  while (buf < end && hex4_to_bin(*buf, &nibble)){
-    valid = true;
-    v = (v << 4) | nibble;
-    buf++;
-  }
-  
-  *value = v;
-  *bufptr = buf;
-  return valid;
-}
-
-static bool
-parse_char(const unsigned char **bufptr, const unsigned char *end, unsigned char *ch)
-{
-  const unsigned char *buf = *bufptr;
-  if (buf < end){
-    *ch = *buf++;
-    *bufptr = buf;
-    return true;
-  }
-  return false;
-}
-
-static bool
-expect_char(const unsigned char **bufptr, const unsigned char *end, unsigned char expected)
-{
-  unsigned char ch;
-  return parse_char(bufptr, end, &ch) && ch == expected;
-}
-
-static bool
-expect_end(const unsigned char **bufptr, const unsigned char *end)
-{
-  return *bufptr == end;
-}
-
-static bool
-parse_addr_length(const unsigned char **bufptr, const unsigned char *end,
-		  unsigned int *addr, unsigned int *length)
-{
-  return (parse_number(bufptr, end, addr)
-	  && expect_char(bufptr, end, ',')
-	  && parse_number(bufptr, end, length));
-}
-
-static void
-put_error(int error)
-{
-  unsigned char buf[3];
-  buf[0] = 'E';
-  buf[1] = hex_table[(error >> 4) & 0xf];
-  buf[2] = hex_table[error & 0xf];
-  
-  put_packet(buf, sizeof(buf));
-}
-
-static void
-put_ok(void)
-{
-  const unsigned char buf[2] = "OK";
-  put_packet(buf, sizeof(buf));
-}
-
-/*
- * Read memory and send the reply.
- * We do it on the fly so that our packet size is effectively unlimited
- */
-static void
-read_memory(unsigned int addr, unsigned int nbytes)
-{
-  int checksum = 0;
-  gdb_putc('$');
-
-  if ((addr & 0x3) == 0 && (nbytes & 0x3) == 0){	// word aligned
-    union {
-      unsigned int	i;
-      unsigned char	c[4];
-    } u;
-
-    unsigned int *p = (unsigned int *) addr;
-    unsigned int length = nbytes / 4;
-
-    for (unsigned int i = 0; i < length; i++){
-      u.i = p[i];	// do a word read
-      checksum = put_hex8_checksum(u.c[0], checksum);
-      checksum = put_hex8_checksum(u.c[1], checksum);
-      checksum = put_hex8_checksum(u.c[2], checksum);
-      checksum = put_hex8_checksum(u.c[3], checksum);
-    }
-  }
-  else {						// byte aligned
-    unsigned char *p = (unsigned char *) addr;
-    for (unsigned int i = 0; i < nbytes; i++)
-      checksum = put_hex8_checksum(p[i], checksum);
-  }
-
-  put_packet_trailer(checksum);
-}
-
-static unsigned int
-get_unaligned_int(const unsigned char *p)
-{
-  // we're bigendian
-  return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3]);
-}
-
-static bool
-write_memory(unsigned int addr, size_t nbytes,
-	     const unsigned char *data)
-{
-  if ((addr & 0x3) == 0 && (nbytes & 0x3) == 0){	// word-aligned dst
-    unsigned int *dst = (unsigned int *) addr;
-    size_t length = nbytes / 4;
-    for (size_t i = 0; i < length; i++){
-      unsigned int t = get_unaligned_int(&data[4*i]);
-      dst[i] = t;					// word writes
-    }
-  }
-  else {						// non-word-aligned dst
-    unsigned char *dst = (unsigned char *) addr;
-    for (size_t i = 0; i < nbytes; i++){
-      dst[i] = data[i];
-    }
-  }
-  return true;
-}
-
-void
-gdbstub2_main_loop(void)
-{
-  unsigned char inpkt[MAX_PACKET + 24];
-  unsigned char binary_data[MAX_PACKET/2] __attribute__((aligned (4)));
-
-  hal_uart_set_mode(UART_MODE_RAW); //tell UART HAL not to map \n to \r\n
-
-  while (1){
-    size_t	inpkt_len;
-    bool ok = get_packet(inpkt, sizeof(inpkt), &inpkt_len);
-    if (!ok){
-      gdb_putc('-');
-      continue;
-    }
-    gdb_putc('+');
-
-    const unsigned char *buf = inpkt;
-    const unsigned char *end = inpkt + inpkt_len;
-    unsigned char ch;
-
-    if (!parse_char(&buf, end, &ch)){	// empty packet
-      put_packet(0, 0);
-      continue;
-    }
-
-    unsigned int addr;
-    unsigned int length;
-
-    switch(ch){
-    case 'm':		// m<addr>,<length>  -- read <length> bytes starting at <addr>
-      if (!(parse_addr_length(&buf, end, &addr, &length) && expect_end(&buf, end))){
-	put_error(1);
-      }
-      else {
-	read_memory(addr, length);
-      }
-      break;
-
-    case 'M':		// M<addr>,<length>:XX...  -- write <length> bytes starting at <addr>
-			//   XX... is the data in hex
-      if (!(parse_addr_length(&buf, end, &addr, &length)
-	    && expect_char(&buf, end, ':')
-	    && (end - buf) == 2 * length)){
-	put_error(1);
-      }
-      else {
-	if (!hex_to_bin_array(binary_data, buf, length))
-	  put_error(2);
-	else if (!write_memory(addr, length, binary_data))
-	  put_error(3);
-	else
-	  put_ok();
-      }
-      break;
-
-    case 'X':		// X<addr>,<length>:XX...  -- write <length> bytes starting at <addr>
-			//   XX... is the data in binary
-      if (!(parse_addr_length(&buf, end, &addr, &length)
-	    && expect_char(&buf, end, ':')
-	    && (end - buf) == length)){
-	put_error(1);
-      }
-      else {
-	if (!write_memory(addr, length, buf))
-	  put_error(3);
-	else
-	  put_ok();
-      }
-      break;
-
-    case 'c':		// c<addr>	-- continue.  <addr> is the address to resume (goto).
-      if (!(parse_number(&buf, end, &addr)
-	    && expect_end(&buf, end))){
-	put_error(1);
-      }
-      else {
-	typedef void (*fptr_t)(void);
-	(*(fptr_t) addr)();	// most likely no return
-      }
-      break;
-/*
-    case 0x80:
-      {
-	unsigned char *output = binary_data;  // reuse
-	size_t sizeof_output = sizeof(binary_data);
-	size_t actual_olen;
-	loader_parser(buf, end-buf,
-		      output, sizeof_output, &actual_olen);
-	put_packet(output, actual_olen);
-      }
-      break;
-*/
-    default:		// unknown packet type
-      put_packet(0, 0);
-      break;
-    }
-  }
-}
diff --git a/firmware/microblaze/lib/mdelay.c b/firmware/microblaze/lib/mdelay.c
deleted file mode 100644
index c8c119b1a..000000000
--- a/firmware/microblaze/lib/mdelay.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/* -*- c -*- */
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "mdelay.h"
-#include "memory_map.h"
-
-// Delay about one millisecond.
-//
-// Need 33,333 cycles at 33 MHz.
-// Each time around the loop is 10 cycles
-//
-
-#define LOOPCNT(wb_div) (MASTER_CLK_RATE/(wb_div) / 10000)
-
-inline static void
-delay_1ms(int loop_count)
-{
-  int	i;
-  for (i = 0; i < loop_count; i++){
-    asm volatile ("or  r0, r0, r0\n\
-		   or  r0, r0, r0\n\
-		   or  r0, r0, r0\n\
-		   or  r0, r0, r0\n\
-		   or  r0, r0, r0\n\
-		   or  r0, r0, r0\n\
-		   or  r0, r0, r0\n");
-  }
-}
-
-// delay about ms milliseconds
-void
-mdelay(int ms)
-{
-  static int loop_count = -1;
-
-  if (hwconfig_simulation_p())
-    return;
-
-  if (loop_count < 0){
-    // set correct loop_count
-    static unsigned short lc[8] = {
-      0,
-      LOOPCNT(1),
-      LOOPCNT(2),
-      LOOPCNT(3),
-      LOOPCNT(4),
-      LOOPCNT(5),
-      LOOPCNT(6),
-      LOOPCNT(7)
-    };
-
-    loop_count = lc[hwconfig_wishbone_divisor() & 0x7];
-  }
-
-  int i;
-  for (i = 0; i < ms; i++)
-    delay_1ms(loop_count);
-}
diff --git a/firmware/microblaze/lib/net/.gitignore b/firmware/microblaze/lib/net/.gitignore
deleted file mode 100644
index 282522db0..000000000
--- a/firmware/microblaze/lib/net/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-Makefile
-Makefile.in
diff --git a/firmware/microblaze/lib/usrp2_bytesex.h b/firmware/microblaze/lib/usrp2_bytesex.h
deleted file mode 100644
index 2b74f2a0b..000000000
--- a/firmware/microblaze/lib/usrp2_bytesex.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef INCLUDED_USRP2_BYTESEX_H
-#define INCLUDED_USRP2_BYTESEX_H
-
-// The USRP2 speaks big-endian...
-// Use the standard include files or provide substitutions for
-// htons and friends
-
-#if defined(HAVE_ARPA_INET_H)
-#include <arpa/inet.h>
-#elif defined(HAVE_NETINET_IN_H)
-#include <netinet/in.h>
-#else
-#include <stdint.h>
-
-#ifdef WORDS_BIGENDIAN  // nothing to do...
-
-static inline uint32_t htonl(uint32_t x){ return x; }
-static inline uint16_t htons(uint16_t x){ return x; }
-static inline uint32_t ntohl(uint32_t x){ return x; }
-static inline uint16_t ntohs(uint16_t x){ return x; }
-
-#else
-
-#ifdef HAVE_BYTESWAP_H
-#include <byteswap.h>
-#else
-
-static inline uint16_t
-bswap_16 (uint16_t x)
-{
-  return ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8));
-}
-
-static inline uint32_t
-bswap_32 (uint32_t x)
-{
-  return ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >>  8) \
-        | (((x) & 0x0000ff00) <<  8) | (((x) & 0x000000ff) << 24));
-}
-#endif
-
-static inline uint32_t htonl(uint32_t x){ return bswap_32(x); }
-static inline uint16_t htons(uint16_t x){ return bswap_16(x); }
-static inline uint32_t ntohl(uint32_t x){ return bswap_32(x); }
-static inline uint16_t ntohs(uint16_t x){ return bswap_16(x); }
-
-#endif
-#endif
-#endif /* INCLUDED_USRP2_BYTESEX_H */
diff --git a/firmware/microblaze/lib/wb16550.h b/firmware/microblaze/lib/wb16550.h
deleted file mode 100644
index 7522f4438..000000000
--- a/firmware/microblaze/lib/wb16550.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/* -*- c -*- */
-/*
- * Copyright 2007 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-
-// Wishbone National Semiconductor 16550A compatible UART 
-
-#ifndef INCLUDED_WB16550_H
-#define INCLUDED_WB16550_H
-
-#include <stdint.h>
-
-typedef struct {
-  volatile uint8_t data;     // 0 r/w: r: rx fifo, w: tx fifo (if DLAB: LSB of divisor)
-  volatile uint8_t ier;      // 1 r/w: Interrupt Enable Register (if DLAB: MSB of divisor)
-  volatile uint8_t iir_fcr;  // 2 r/w: r: Interrupt ID Register,
-                             //        w: Fifo Control Register
-  volatile uint8_t lcr;      // 3 r/w: Line Control Register
-  volatile uint8_t mcr;      // 4 w:   Modem Control Register
-  volatile uint8_t lsr;      // 5 r:   Line Status Register
-  volatile uint8_t msr;      // 6 r:   Modem Status Register
-
-} wb16550_reg_t;
-
-#define UART_IER_RDI		0x01  // Enable received data interrupt
-#define UART_IER_THRI		0x02  // Enable transmitter holding reg empty int.
-#define	UART_IER_RLSI		0x04  // Enable receiver line status interrupt
-#define UART_IER_MSI		0x08  // Enable modem status interrupt
-
-#define	UART_IIR_NO_INT		0x01  // No interrupts pending
-#define UART_IIR_ID_MASK	0x06  // Mask for interrupt ID
-#define	UART_IIR_MSI		0x00  // Modem status interrupt
-#define	UART_IIR_THRI		0x02  // Tx holding register empty int
-#define	UART_IIR_RDI		0x04  // Rx data available int
-#define UART_IIR_RLSI		0x06  // Receiver line status int
-
-#define	UART_FCR_ENABLE_FIFO	0x01  // ignore, always enabled
-#define UART_FCR_CLEAR_RCVR	0x02  // Clear the RCVR FIFO
-#define UART_FCR_CLEAR_XMIT	0x04  // Clear the XMIT FIFO
-#define UART_FCR_TRIGGER_MASK	0xC0  // Mask for FIFO trigger range
-#define	UART_FCR_TRIGGER_1	0x00  // Rx fifo trigger level:  1 byte
-#define	UART_FCR_TRIGGER_4	0x40  // Rx fifo trigger level:  4 bytes
-#define	UART_FCR_TRIGGER_8	0x80  // Rx fifo trigger level:  8 bytes
-#define	UART_FCR_TRIGGER_14	0xC0  // Rx fifo trigger level: 14 bytes
-
-#define UART_LCR_DLAB		0x80  // Divisor latch access bit 
-#define UART_LCR_SBC		0x40  // Set break control 
-#define UART_LCR_SPAR		0x20  // Stick parity
-#define UART_LCR_EPAR		0x10  // Even parity select 
-#define UART_LCR_PARITY		0x08  // Parity Enable 
-#define UART_LCR_STOP		0x04  // Stop bits: 0=1 bit, 1=2 bits 
-#define UART_LCR_WLEN5		0x00  // Wordlength: 5 bits 
-#define UART_LCR_WLEN6		0x01  // Wordlength: 6 bits 
-#define UART_LCR_WLEN7		0x02  // Wordlength: 7 bits 
-#define UART_LCR_WLEN8		0x03  // Wordlength: 8 bits 
-
-#define UART_MCR_LOOP		0x10  // Enable loopback test mode 
-#define UART_MCR_OUT2n		0x08  // Out2 complement (loopback mode)
-#define UART_MCR_OUT1n		0x04  // Out1 complement (loopback mode)
-#define UART_MCR_RTSn		0x02  // RTS complement 
-#define UART_MCR_DTRn		0x01  // DTR complement 
-
-#define UART_LSR_TEMT		0x40  // Transmitter empty 
-#define UART_LSR_THRE		0x20  // Transmit-hold-register empty 
-#define UART_LSR_BI		0x10  // Break interrupt indicator 
-#define UART_LSR_FE		0x08  // Frame error indicator 
-#define UART_LSR_PE		0x04  // Parity error indicator 
-#define UART_LSR_OE		0x02  // Overrun error indicator 
-#define UART_LSR_DR		0x01  // Receiver data ready 
-#define UART_LSR_BRK_ERROR_BITS	0x1E  // BI, FE, PE, OE bits 
-#define UART_LSR_ERROR		0x80  // At least 1 PE, FE or BI are in the fifo
-
-#define UART_MSR_DCD		0x80  // Data Carrier Detect 
-#define UART_MSR_RI		0x40  // Ring Indicator 
-#define UART_MSR_DSR		0x20  // Data Set Ready 
-#define UART_MSR_CTS		0x10  // Clear to Send 
-#define UART_MSR_DDCD		0x08  // Delta DCD 
-#define UART_MSR_TERI		0x04  // Trailing edge ring indicator 
-#define UART_MSR_DDSR		0x02  // Delta DSR 
-#define UART_MSR_DCTS		0x01  // Delta CTS 
-#define UART_MSR_ANY_DELTA	0x0F  // Any of the delta bits! 
-
-
-#endif  // INCLUDED_WB16550_H 
diff --git a/firmware/microblaze/u2_flash_tool b/firmware/microblaze/u2_flash_tool
deleted file mode 100755
index 2b66a4ac0..000000000
--- a/firmware/microblaze/u2_flash_tool
+++ /dev/null
@@ -1,116 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from optparse import OptionParser
-
-SECTOR_SIZE = 512                 # bytes
-MAX_FILE_SIZE =  1 * (2**20)      # maximum number of bytes we'll burn to a slot
-
-FPGA_OFFSET = 0                   # offset in flash to fpga image
-FIRMWARE_OFFSET = 1 * (2**20)     # offset in flash to firmware image
-
-def read_file_data(filename):
-    f = open(filename, "rb")
-    file_data = f.read(MAX_FILE_SIZE)
-    t = len(file_data) % SECTOR_SIZE
-    if t != 0:
-        file_data += (SECTOR_SIZE - t)*chr(0)  # pad to an even sector size w/ zeros
-    return file_data
-
-
-def write_flash(offset, filename, devname):
-    file_data = read_file_data(filename)
-    dev = open(devname, "wb")
-    dev.seek(offset, 0)                 # seek to absolute byte offset
-    dev.write(file_data)
-    dev.flush()
-    dev.close()
-    return True
-
-
-def verify_flash(offset, filename, devname):
-    file_data = read_file_data(filename)
-    dev = open(devname, "rb")
-    dev.seek(offset, 0)                 # seek to absolute byte offset
-    dev_data = dev.read(len(file_data))
-    if len(dev_data) != len(file_data):
-        sys.stderr.write("short read on device %s\n" % (devname,))
-        return False
-
-    if file_data == dev_data:
-        return True
-
-    # doesn't match
-    nwrong = 0
-    for i in range(len(file_data)):
-        if dev_data[i] != file_data[i]:
-            sys.stderr.write("mismatch at offset %7d.  Expected 0x%02x, got 0x%02x\n" % (
-                i, ord(file_data[i]), ord(dev_data[i])))
-            nwrong += 1
-            if nwrong > 16:
-                sys.stderr.write("> 16 errors, stopping comparison\n")
-                break
-    return False
-
-def read_flash(offset, filename, devname):
-    dev = open(devname, "rb")
-    dev.seek(offset, 0)                 # seek to absolute byte offset
-    dev_data = dev.read(MAX_FILE_SIZE)
-    dev.close()
-    open(filename, "wb").write(dev_data)
-
-    
-def main():
-    parser = OptionParser(usage="%prog: [options] filename")
-    parser.add_option("-w", "--write", action="store_const", const="write", dest="mode",
-                      help="write FILE to TARGET slot")
-    parser.add_option("-v", "--verify",  action="store_const", const="verify", dest="mode",
-                      help="verify FILE against TARGET slot")
-    parser.add_option("-r", "--read",  action="store_const", const="read", dest="mode",
-                      help="read TARGET slot, write to FILE")
-    parser.add_option("-t", "--target", type="choice", choices=("fpga", "s/w"), default="s/w",
-                      help="select TARGET slot from: fpga, s/w [default=%default]")
-    parser.add_option("", "--dev", default=None,
-                      help="specify flash device file, e.g., /dev/sdb.  Be careful!")
-    parser.set_defaults(target="s/w", mode=None)
-
-    (options, args) = parser.parse_args()
-    if len(args) != 1:
-        parser.print_help()
-        raise SystemExit
-
-    filename = args[0]
-
-    if options.mode is None:
-        sys.stderr.write("specify mode with -w, -v or -r\n")
-        parser.print_help()
-        raise SystemExit
-
-    if options.dev is None:
-        sys.stderr.write("specify the device file with --dev\n")
-        parser.print_help()
-        raise SystemExit
-
-    offset = { "fpga" : FPGA_OFFSET, "s/w" : FIRMWARE_OFFSET }[options.target]
-    
-    if options.mode == "write":
-        r = (write_flash(offset, filename, options.dev)
-             and verify_flash(offset, filename, options.dev))
-    elif options.mode == "verify":
-        r = verify_flash(offset, filename, options.dev)
-    elif options.mode == "read":
-        r = read_flash(offset, filename, options.dev)
-    else:
-        raise NotImplemented
-
-    if not r:
-        raise SystemExit, 1
-
-
-if __name__ == "__main__":
-    main()
-
-    
-
-
-    
diff --git a/firmware/microblaze/usrp2/.gitignore b/firmware/microblaze/usrp2/.gitignore
deleted file mode 100644
index 18f715618..000000000
--- a/firmware/microblaze/usrp2/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-/Makefile
-/Makefile.in
-/*.a
-/*.bin
-/*.dump
-/*.ihx
-/*.elf
-/*.rom
-/*.map
diff --git a/firmware/microblaze/usrp2/udp_fw_update.c b/firmware/microblaze/usrp2/udp_fw_update.c
deleted file mode 100644
index 14eb0b1ee..000000000
--- a/firmware/microblaze/usrp2/udp_fw_update.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2010 Ettus Research LLC
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-//Routines to handle updating the SPI Flash firmware via UDP
-
-#include "net_common.h"
-#include "usrp2/fw_common.h"
-#include <nonstdio.h>
-#include "udp_fw_update.h"
-
-//Firmware update packet handler
-void handle_udp_fw_update_packet(struct socket_address src, struct socket_address dst,
-                                 unsigned char *payload, int payload_len) {
-
-  usrp2_fw_update_data_t update_data_out;
-  update_data_out.id = USRP2_FW_UPDATE_ID_WAT;
-
-  send_udp_pkt(USRP2_UDP_UPDATE_PORT, src, &update_data_out, sizeof(update_data_out));
-}
diff --git a/firmware/microblaze/usrp2p/.gitignore b/firmware/microblaze/usrp2p/.gitignore
deleted file mode 100644
index 18f715618..000000000
--- a/firmware/microblaze/usrp2p/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-/Makefile
-/Makefile.in
-/*.a
-/*.bin
-/*.dump
-/*.ihx
-/*.elf
-/*.rom
-/*.map
diff --git a/firmware/microblaze/usrp2p/Makefile.am b/firmware/microblaze/usrp2p/Makefile.am
deleted file mode 100644
index 40766b406..000000000
--- a/firmware/microblaze/usrp2p/Makefile.am
+++ /dev/null
@@ -1,71 +0,0 @@
-#
-# Copyright 2010 Ettus Research LLC
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-
-include $(top_srcdir)/Makefile.common
-
-AM_CFLAGS = \
-	$(COMMON_CFLAGS) \
-	-DUSRP2P
-
-AM_LDFLAGS = \
-	$(COMMON_LFLAGS) \
-	-Wl,-defsym -Wl,_TEXT_START_ADDR=0x8050 \
-	-Wl,-defsym -Wl,_STACK_SIZE=3072
-
-LDADD = libusrp2p.a
-
-#all of this here is to relocate the hardware vectors to somewhere normal.
-RELOCATE_ARGS = \
-	--change-section-address .vectors.sw_exception+0x8000 \
-	--change-section-address .vectors.hw_exception+0x8000 \
-	--change-section-address .vectors.interrupt+0x8000 \
-	--change-section-address .vectors.reset+0x8000
-
-#	$(MB_OBJCOPY) -O ihex $< $@
-# the below would work if objcopy weren't written by apes
-#	$(MB_OBJCOPY) -O ihex -w --change-section-address .vectors*+0x8000 $< $@
-# using the below will throw away the interrupt vectors when they get relocated below 0x0000.
-#	$(MB_OBJCOPY) -O ihex --change-addresses -0x8000 $< $@
-
-########################################################################
-# USRP2P specific library and programs
-########################################################################
-noinst_LIBRARIES = libusrp2p.a
-
-libusrp2p_a_SOURCES = \
-	$(COMMON_SRCS) \
-	spif.c \
-	spi_flash.c \
-	spi_flash_read.c \
-	bootloader_utils.c \
-	ethernet.c \
-	xilinx_s3_icap.c \
-  udp_fw_update.c
-
-noinst_PROGRAMS = \
-	usrp2p_txrx_uhd.elf \
-  usrp2p_blinkenlights.elf \
-  usrp2p_uart_flash_loader.elf
-
-usrp2p_txrx_uhd_elf_SOURCES = \
-	$(top_srcdir)/apps/txrx_uhd.c
-
-usrp2p_blinkenlights_elf_SOURCES = \
-  $(top_srcdir)/apps/blinkenlights.c
-
-usrp2p_uart_flash_loader_elf_SOURCES = \
-  $(top_srcdir)/apps/uart_flash_loader.c
diff --git a/firmware/microblaze/usrp2p/bootloader/.gitignore b/firmware/microblaze/usrp2p/bootloader/.gitignore
deleted file mode 100644
index 17b0f82f3..000000000
--- a/firmware/microblaze/usrp2p/bootloader/.gitignore
+++ /dev/null
@@ -1,11 +0,0 @@
-/*.ihx
-/*.rmi
-/*_rom
-/*.elf
-/*.bin
-/*.dump
-/*.log
-/*.rom
-/*.map
-/Makefile
-/Makefile.in
diff --git a/firmware/microblaze/usrp2p/bootloader/Makefile.am b/firmware/microblaze/usrp2p/bootloader/Makefile.am
deleted file mode 100644
index 1fc5daf9c..000000000
--- a/firmware/microblaze/usrp2p/bootloader/Makefile.am
+++ /dev/null
@@ -1,39 +0,0 @@
-#
-# Copyright 2007,2008,2009 Free Software Foundation, Inc.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-
-include $(top_srcdir)/Makefile.common
-
-ROM_LINKER_SCRIPT = u2p2-rom.ld
-
-# loads into 8K boot ram located at 0x0000_0000
-AM_CFLAGS = $(COMMON_CFLAGS) -I$(top_srcdir)/usrp2p
-AM_LDFLAGS = -Wl,-T,$(ROM_LINKER_SCRIPT) $(COMMON_LFLAGS) -Wl,-defsym -Wl,_STACK_SIZE=1024
-
-EXTRA_DIST = $(ROM_LINKER_SCRIPT)
-
-LDADD = $(top_srcdir)/usrp2p/libusrp2p.a
-
-noinst_PROGRAMS = \
-	init_bootloader.elf
-
-init_bootloader_elf_SOURCES = init_bootloader.c
-
-.bin.rmi:
-	$(top_srcdir)/bin/bin_to_ram_macro_init.py $< $@
-
-_generated_from_elf += \
-	$(noinst_PROGRAMS:.elf=.rmi)
diff --git a/firmware/microblaze/usrp2p/bootloader_utils.c b/firmware/microblaze/usrp2p/bootloader_utils.c
deleted file mode 100644
index fadd225bb..000000000
--- a/firmware/microblaze/usrp2p/bootloader_utils.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2010 Ettus Research LLC
- *
- */
-
-//contains routines for loading programs from Flash. depends on Flash libraries.
-//also contains routines for reading / writing EEPROM flags for the bootloader
-#include <stdbool.h>
-#include <string.h>
-#include <bootloader_utils.h>
-#include <spi_flash.h>
-
-int is_valid_fpga_image(uint32_t addr) {
-	uint8_t imgbuf[64];
-	spi_flash_read(addr, 64, imgbuf);
-	//we're just looking for leading 0xFF padding, followed by the sync bytes 0xAA 0x99
-	int i = 0;
-	for(i; i<63; i++) {
-		if(imgbuf[i] == 0xFF) continue;
-		if(imgbuf[i] == 0xAA && imgbuf[i+1] == 0x99) return 1;
-	}
-	
-	return 0;
-}
-
-int is_valid_fw_image(uint32_t addr) {
-	static const uint8_t fwheader[] = {0xB0, 0x00, 0x00, 0x00, 0xB8, 0x08}; //just lookin for a jump to anywhere located at the reset vector
-	uint8_t buf[12];
-	spi_flash_read(addr, 6, buf);
-	return memcmp(buf, fwheader, 6) == 0;
-}
-
-void start_program(uint32_t addr)
-{
-	memcpy(0x00000000, addr+0x00000000, 36); //copy the whole vector table, with the reset vector, into boot RAM
-	typedef void (*fptr_t)(void);
-	(*(fptr_t) 0x00000000)();	// most likely no return
-}
diff --git a/firmware/zpu/.gitignore b/firmware/zpu/.gitignore
new file mode 100644
index 000000000..796b96d1c
--- /dev/null
+++ b/firmware/zpu/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/firmware/microblaze/AUTHORS b/firmware/zpu/AUTHORS
index c365261f8..c230624fb 100644
--- a/firmware/microblaze/AUTHORS
+++ b/firmware/zpu/AUTHORS
@@ -1,3 +1,4 @@
 Eric Blossom <eb@comsec.com>
 Matt Ettus <matt@ettus.com>
 Josh Blum <josh@ettus.com>
+Nick Foster <nick@ettus.com>
diff --git a/firmware/zpu/CMakeLists.txt b/firmware/zpu/CMakeLists.txt
new file mode 100644
index 000000000..d7cedbfb9
--- /dev/null
+++ b/firmware/zpu/CMakeLists.txt
@@ -0,0 +1,121 @@
+#
+# Copyright 2010-2011 Ettus Research LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+########################################################################
+# setup project and compiler
+########################################################################
+CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
+#force the compiler because the check wont use the special flag below
+INCLUDE(CMakeForceCompiler)
+CMAKE_FORCE_C_COMPILER(zpu-elf-gcc GNU)
+PROJECT(USRP_NXXX_FW C)
+
+########################################################################
+# lwIP header include dirs
+########################################################################
+SET(LWIPDIR ${CMAKE_SOURCE_DIR}/lwip/lwip-1.3.1)
+
+INCLUDE_DIRECTORIES(
+    ${CMAKE_SOURCE_DIR}/lwip
+    ${CMAKE_SOURCE_DIR}/lwip_port
+    ${LWIPDIR}/src/include
+    ${LWIPDIR}/src/include/ipv4
+)
+
+########################################################################
+# misc flags for the gcc compiler
+########################################################################
+SET(CMAKE_C_FLAGS -phi) #always needed compile time and link time
+ADD_DEFINITIONS(-Os)
+ADD_DEFINITIONS(--std=gnu99)
+ADD_DEFINITIONS(-Wall)
+ADD_DEFINITIONS(-Werror-implicit-function-declaration)
+ADD_DEFINITIONS(-ffunction-sections)
+
+MACRO(ADD_LINKER_FLAGS flags)
+    SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${flags}")
+ENDMACRO(ADD_LINKER_FLAGS)
+
+ADD_LINKER_FLAGS("-Wl,--gc-sections")
+ADD_LINKER_FLAGS("-Wl,--relax")
+
+########################################################################
+# define for the hal io (FIXME move?)
+########################################################################
+#ADD_DEFINITIONS(-DHAL_IO_USES_DBOARD_PINS)
+ADD_DEFINITIONS(-DHAL_IO_USES_UART)
+
+########################################################################
+# common cflags and ldflags
+########################################################################
+INCLUDE_DIRECTORIES(
+    ${CMAKE_SOURCE_DIR}/../../host/lib/usrp
+    ${CMAKE_SOURCE_DIR}/lib
+)
+
+########################################################################
+# setup programs for output files
+########################################################################
+FIND_PROGRAM(LINKER zpu-elf-ld)
+FIND_PROGRAM(OBJCOPY zpu-elf-objcopy)
+FIND_PROGRAM(OBJDUMP zpu-elf-objdump)
+FIND_PROGRAM(HEXDUMP hexdump)
+
+########################################################################
+# helper functions to build output formats
+########################################################################
+SET(GEN_OUTPUTS_BIN_SIZE "bin_size_not_set") #set before calling
+MACRO(GEN_OUTPUTS target)
+    GET_FILENAME_COMPONENT(name ${target} NAME_WE)
+    #command to create a map from elf
+    ADD_CUSTOM_COMMAND(
+        OUTPUT ${name}.map DEPENDS ${target}
+        COMMAND ${LINKER} -Map ${name}.map ${target}
+    )
+    #command to create a bin from elf
+    ADD_CUSTOM_COMMAND(
+        OUTPUT ${name}.bin DEPENDS ${target}
+        COMMAND ${OBJCOPY} -O binary ${target} ${name}.bin
+        --pad-to ${GEN_OUTPUTS_BIN_SIZE}
+    )
+    #command to create a ihx from elf
+    ADD_CUSTOM_COMMAND(
+        OUTPUT ${name}.ihx DEPENDS ${target}
+        COMMAND ${OBJCOPY} -O ihex ${target} ${name}.ihx
+        --pad-to ${GEN_OUTPUTS_BIN_SIZE}
+    )
+    #command to create a dump from elf
+    ADD_CUSTOM_COMMAND(
+        OUTPUT ${name}.dump DEPENDS ${target}
+        COMMAND ${OBJDUMP} -DSC ${target} > ${name}.dump
+    )
+    #command to create a rom from bin
+    ADD_CUSTOM_COMMAND(
+        OUTPUT ${name}.rom DEPENDS ${name}.bin
+        COMMAND ${HEXDUMP} -v -e'1/1 \"%.2X\\n\"' ${name}.bin > ${name}.rom
+    )
+    #add a top level target for output files
+    ADD_CUSTOM_TARGET(
+        ${name}_outputs ALL DEPENDS ${name}.map ${name}.bin ${name}.ihx ${name}.dump ${name}.rom
+    )
+ENDMACRO(GEN_OUTPUTS)
+
+########################################################################
+# Add the subdirectories
+########################################################################
+ADD_SUBDIRECTORY(usrp2)
+ADD_SUBDIRECTORY(usrp2p)
diff --git a/firmware/zpu/README b/firmware/zpu/README
new file mode 100644
index 000000000..ba0aa11eb
--- /dev/null
+++ b/firmware/zpu/README
@@ -0,0 +1,16 @@
+########################################################################
+# ZPU firmware code for USRP2 and N Series
+########################################################################
+This code requires the gcc-zpu tool-chain which can be found here:
+
+http://opensource.zylin.com/zpudownload.html
+
+zpu-elf-gcc should be in your $PATH
+
+########################################################################
+# Run the following commands to build
+########################################################################
+mkdir build
+cd build
+cmake ../
+make
diff --git a/firmware/microblaze/apps/blinkenlights.c b/firmware/zpu/apps/blinkenlights.c
index 4cebe5c9d..30cb33a7f 100644
--- a/firmware/microblaze/apps/blinkenlights.c
+++ b/firmware/zpu/apps/blinkenlights.c
@@ -12,9 +12,11 @@ int main(int argc, char *argv[]) {
 	uint32_t c = 0;
 	uint8_t i = 0;
 
+	output_regs->led_src = 0;
+
 	while(1) {
 		//delay(5000000);
-		for(c=0;c<5000000;c++) asm("NOP");
+		for(c=0;c<50000;c++) asm("NOP");
 		output_regs->leds = (i++ % 2) ? 0xFF : 0x00; //blink everything on that register
 	}
 
diff --git a/firmware/microblaze/apps/flash_test.c b/firmware/zpu/apps/flash_test.c
index 5b4569030..5b4569030 100644
--- a/firmware/microblaze/apps/flash_test.c
+++ b/firmware/zpu/apps/flash_test.c
diff --git a/firmware/microblaze/apps/hardware_testbed.c b/firmware/zpu/apps/hardware_testbed.c
index e68e68ff7..e68e68ff7 100644
--- a/firmware/microblaze/apps/hardware_testbed.c
+++ b/firmware/zpu/apps/hardware_testbed.c
diff --git a/firmware/microblaze/apps/txrx_uhd.c b/firmware/zpu/apps/txrx_uhd.c
index 9c1873e1c..4ccb585e2 100644
--- a/firmware/microblaze/apps/txrx_uhd.c
+++ b/firmware/zpu/apps/txrx_uhd.c
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 /*
  * Copyright 2007,2008 Free Software Foundation, Inc.
@@ -28,12 +28,10 @@
 #include "memory_map.h"
 #include "spi.h"
 #include "hal_io.h"
-#include "buffer_pool.h"
 #include "pic.h"
 #include <stdbool.h>
 #include "ethernet.h"
 #include "nonstdio.h"
-#include "dbsm.h"
 #include <net/padded_eth_hdr.h>
 #include <net_common.h>
 #include "memcpy_wa.h"
@@ -42,87 +40,12 @@
 #include <string.h>
 #include "clocks.h"
 #include "usrp2/fw_common.h"
-#include <i2c_async.h>
 #include <i2c.h>
 #include <ethertype.h>
 #include <arp_cache.h>
 #include "udp_fw_update.h"
-
-/*
- * Full duplex Tx and Rx between ethernet and DSP pipelines
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to eth flow
- * Buffers 4 and 5 are used to double-buffer the eth to DSP Tx  eth flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-
-#define	DSP_RX_BUF_0	2	// dsp rx -> eth (double buffer)
-#define	DSP_RX_BUF_1	3	// dsp rx -> eth
-#define	DSP_TX_BUF_0	4	// eth -> dsp tx (double buffer)
-#define	DSP_TX_BUF_1	5	// eth -> dsp tx
-
-/*
- * ================================================================
- *   configure DSP TX double buffering state machine (eth -> dsp)
- * ================================================================
- */
-
-// DSP Tx reads ethernet header words
-#define DSP_TX_FIRST_LINE ((sizeof(padded_eth_hdr_t) + sizeof(struct ip_hdr) + sizeof(struct udp_hdr))/sizeof(uint32_t))
-
-// Receive from ethernet
-buf_cmd_args_t dsp_tx_recv_args = {
-  PORT_ETH,
-  0,
-  BP_LAST_LINE
-};
-
-// send to DSP Tx
-buf_cmd_args_t dsp_tx_send_args = {
-  PORT_DSP,
-  DSP_TX_FIRST_LINE,	// starts just past transport header
-  0			// filled in from last_line register
-};
-
-dbsm_t dsp_tx_sm;	// the state machine
-
-/*
- * ================================================================
- *   configure DSP RX double buffering state machine (dsp -> eth)
- * ================================================================
- */
-
-static const uint32_t rx_ctrl_word = 1 << 16;
-
-// DSP Rx writes ethernet header words
-#define DSP_RX_FIRST_LINE sizeof(rx_ctrl_word)/sizeof(uint32_t)
-
-static bool dbsm_rx_inspector(dbsm_t *sm, int buf_this){
-    size_t num_lines = buffer_pool_status->last_line[buf_this]-DSP_RX_FIRST_LINE;
-    ((uint32_t*)buffer_ram(buf_this))[0] = (num_lines*sizeof(uint32_t)) | (1 << 16);
-    return false;
-}
-
-// receive from DSP
-buf_cmd_args_t dsp_rx_recv_args = {
-  PORT_DSP,
-  DSP_RX_FIRST_LINE,
-  BP_LAST_LINE
-};
-
-// send to ETH
-buf_cmd_args_t dsp_rx_send_args = {
-  PORT_ETH,
-  0,		// starts with ethernet header in line 0
-  0,		// filled in from list_line register
-};
-
-dbsm_t dsp_rx_sm;	// the state machine
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
+#include "pkt_ctrl.h"
+#include "banal.h"
 
 static void setup_network(void);
 
@@ -130,78 +53,50 @@ static void setup_network(void);
 // the fast-path setup global variables
 // ----------------------------------------------------------------
 static eth_mac_addr_t fp_mac_addr_src, fp_mac_addr_dst;
-static struct socket_address fp_socket_src, fp_socket_dst;
-
-// ----------------------------------------------------------------
-void start_rx_streaming_cmd(void);
-void stop_rx_cmd(void);
+extern struct socket_address fp_socket_src, fp_socket_dst;
 
-static void print_ip_addr(const void *t){
-    uint8_t *p = (uint8_t *)t;
-    printf("%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
+static void handle_udp_err0_packet(
+    struct socket_address src, struct socket_address dst,
+    unsigned char *payload, int payload_len
+){
+    sr_udp_sm->err0_port = (((uint32_t)dst.port) << 16) | src.port;
+    printf("Storing for async error path:\n");
+    printf("  source udp port: %d\n", dst.port);
+    printf("  destination udp port: %d\n", src.port);
+    newline();
 }
 
-void handle_udp_data_packet(
+static void handle_udp_data_packet(
     struct socket_address src, struct socket_address dst,
     unsigned char *payload, int payload_len
 ){
-    //its a tiny payload, load the fast-path variables
     fp_mac_addr_src = *ethernet_mac_addr();
     arp_cache_lookup_mac(&src.addr, &fp_mac_addr_dst);
     fp_socket_src = dst;
     fp_socket_dst = src;
+    sr_udp_sm->dsp0_port = (((uint32_t)dst.port) << 16) | src.port;
     printf("Storing for fast path:\n");
     printf("  source mac addr: ");
-    print_mac_addr(fp_mac_addr_src.addr); newline();
+    print_mac_addr(&fp_mac_addr_src); newline();
     printf("  source ip addr: ");
     print_ip_addr(&fp_socket_src.addr); newline();
     printf("  source udp port: %d\n", fp_socket_src.port);
     printf("  destination mac addr: ");
-    print_mac_addr(fp_mac_addr_dst.addr); newline();
+    print_mac_addr(&fp_mac_addr_dst); newline();
     printf("  destination ip addr: ");
     print_ip_addr(&fp_socket_dst.addr); newline();
     printf("  destination udp port: %d\n", fp_socket_dst.port);
     newline();
 
-    //setup network and vrt
+    //setup network
     setup_network();
 
-    // kick off the state machine
-    dbsm_start(&dsp_rx_sm);
-
 }
 
 #define OTW_GPIO_BANK_TO_NUM(bank) \
     (((bank) == USRP2_DIR_RX)? (GPIO_RX_BANK) : (GPIO_TX_BANK))
 
-//setup the output data
-static usrp2_ctrl_data_t ctrl_data_out;
-static struct socket_address i2c_src;
-static struct socket_address spi_src;
-
-static volatile bool i2c_done = false;
-void i2c_read_done_callback(void) {
-  //printf("I2C read done callback\n");
-  i2c_async_data_ready(ctrl_data_out.data.i2c_args.data);
-  i2c_done = true;
-  i2c_register_callback(0);
-}
-
-void i2c_write_done_callback(void) {
-  //printf("I2C write done callback\n");
-  i2c_done = true;
-  i2c_register_callback(0);
-}
-
-static volatile bool spi_done = false;
-static volatile uint32_t spi_readback_data;
-void get_spi_readback_data(void) {
-  ctrl_data_out.data.spi_args.data = spi_get_data();
-  spi_done = true;
-  spi_register_callback(0);
-}
-
-void handle_udp_ctrl_packet(
+static void handle_udp_ctrl_packet(
     struct socket_address src, struct socket_address dst,
     unsigned char *payload, int payload_len
 ){
@@ -226,6 +121,7 @@ void handle_udp_ctrl_packet(
     }
 
     //setup the output data
+    usrp2_ctrl_data_t ctrl_data_out;
     ctrl_data_out.proto_ver = USRP2_FW_COMPAT_NUM;
     ctrl_data_out.id=USRP2_CTRL_ID_HUH_WHAT;
     ctrl_data_out.seq=ctrl_data_in->seq;
@@ -239,7 +135,6 @@ void handle_udp_ctrl_packet(
     case USRP2_CTRL_ID_WAZZUP_BRO:
         ctrl_data_out.id = USRP2_CTRL_ID_WAZZUP_DUDE;
         memcpy(&ctrl_data_out.data.ip_addr, get_ip_addr(), sizeof(struct ip_addr));
-        send_udp_pkt(USRP2_UDP_CTRL_PORT, src, &ctrl_data_out, sizeof(ctrl_data_out));
         break;
 
     /*******************************************************************
@@ -247,21 +142,19 @@ void handle_udp_ctrl_packet(
      ******************************************************************/
     case USRP2_CTRL_ID_TRANSACT_ME_SOME_SPI_BRO:{
             //transact
-            bool success = spi_async_transact(
-                //(ctrl_data_in->data.spi_args.readback == 0)? SPI_TXONLY : SPI_TXRX,
+            uint32_t result = spi_transact(
+                (ctrl_data_in->data.spi_args.readback == 0)? SPI_TXONLY : SPI_TXRX,
                 ctrl_data_in->data.spi_args.dev,      //which device
                 ctrl_data_in->data.spi_args.data,     //32 bit data
                 ctrl_data_in->data.spi_args.num_bits, //length in bits
-                (ctrl_data_in->data.spi_args.mosi_edge == USRP2_CLK_EDGE_RISE)? SPIF_PUSH_FALL : SPIF_PUSH_RISE | //flags
-                (ctrl_data_in->data.spi_args.miso_edge == USRP2_CLK_EDGE_RISE)? SPIF_LATCH_RISE : SPIF_LATCH_FALL,
-                get_spi_readback_data //callback
+                (ctrl_data_in->data.spi_args.mosi_edge == USRP2_CLK_EDGE_RISE)? SPIF_PUSH_FALL : SPIF_PUSH_RISE |
+                (ctrl_data_in->data.spi_args.miso_edge == USRP2_CLK_EDGE_RISE)? SPIF_LATCH_RISE : SPIF_LATCH_FALL
             );
 
             //load output
+            ctrl_data_out.data.spi_args.data = result;
             ctrl_data_out.id = USRP2_CTRL_ID_OMG_TRANSACTED_SPI_DUDE;
-            spi_src = src;
         }
-//        send_udp_pkt(USRP2_UDP_CTRL_PORT, src, &ctrl_data_out, sizeof(ctrl_data_out));
         break;
 
     /*******************************************************************
@@ -269,13 +162,11 @@ void handle_udp_ctrl_packet(
      ******************************************************************/
     case USRP2_CTRL_ID_DO_AN_I2C_READ_FOR_ME_BRO:{
             uint8_t num_bytes = ctrl_data_in->data.i2c_args.bytes;
-            i2c_register_callback(i2c_read_done_callback);
-            i2c_async_read(
+            i2c_read(
                 ctrl_data_in->data.i2c_args.addr,
+                ctrl_data_out.data.i2c_args.data,
                 num_bytes
             );
-            i2c_src = src;
-//            i2c_dst = dst;
             ctrl_data_out.id = USRP2_CTRL_ID_HERES_THE_I2C_DATA_DUDE;
             ctrl_data_out.data.i2c_args.bytes = num_bytes;
         }
@@ -283,14 +174,11 @@ void handle_udp_ctrl_packet(
 
     case USRP2_CTRL_ID_WRITE_THESE_I2C_VALUES_BRO:{
             uint8_t num_bytes = ctrl_data_in->data.i2c_args.bytes;
-            i2c_register_callback(i2c_read_done_callback);
-            i2c_async_write(
+            i2c_write(
                 ctrl_data_in->data.i2c_args.addr,
                 ctrl_data_in->data.i2c_args.data,
                 num_bytes
             );
-            i2c_src = src;
-//            i2c_dst = dst;
             ctrl_data_out.id = USRP2_CTRL_ID_COOL_IM_DONE_I2C_WRITE_DUDE;
             ctrl_data_out.data.i2c_args.bytes = num_bytes;
         }
@@ -304,10 +192,6 @@ void handle_udp_ctrl_packet(
             printf("error! tried to poke into 0x%x\n", ctrl_data_in->data.poke_args.addr);
         }
         else switch(ctrl_data_in->data.poke_args.num_bytes){
-        case sizeof(uint64_t):
-            *((uint32_t *) ctrl_data_in->data.poke_args.addrhi) = (uint32_t)ctrl_data_in->data.poke_args.datahi;
-            //continue to uint32_t for low addr:
-
         case sizeof(uint32_t):
             *((uint32_t *) ctrl_data_in->data.poke_args.addr) = (uint32_t)ctrl_data_in->data.poke_args.data;
             break;
@@ -322,15 +206,10 @@ void handle_udp_ctrl_packet(
 
         }
         ctrl_data_out.id = USRP2_CTRL_ID_OMG_POKED_REGISTER_SO_BAD_DUDE;
-        send_udp_pkt(USRP2_UDP_CTRL_PORT, src, &ctrl_data_out, sizeof(ctrl_data_out));
         break;
 
     case USRP2_CTRL_ID_PEEK_AT_THIS_REGISTER_FOR_ME_BRO:
         switch(ctrl_data_in->data.poke_args.num_bytes){
-        case sizeof(uint64_t):
-            ctrl_data_out.data.poke_args.datahi = *((uint32_t *) ctrl_data_in->data.poke_args.addrhi);
-            //continue to uint32_t for low addr:
-
         case sizeof(uint32_t):
             ctrl_data_out.data.poke_args.data = *((uint32_t *) ctrl_data_in->data.poke_args.addr);
             break;
@@ -345,14 +224,13 @@ void handle_udp_ctrl_packet(
 
         }
         ctrl_data_out.id = USRP2_CTRL_ID_WOAH_I_DEFINITELY_PEEKED_IT_DUDE;
-        send_udp_pkt(USRP2_UDP_CTRL_PORT, src, &ctrl_data_out, sizeof(ctrl_data_out));
         break;
 
     case USRP2_CTRL_ID_SO_LIKE_CAN_YOU_READ_THIS_UART_BRO:{
       //executes a readline()-style read, up to num_bytes long, up to and including newline
       int num_bytes = ctrl_data_in->data.uart_args.bytes;
       if(num_bytes > 20) num_bytes = 20;
-      num_bytes = fngets_timeout(ctrl_data_in->data.uart_args.dev, (char *) ctrl_data_out.data.uart_args.data, num_bytes);
+      num_bytes = fngets_noblock(ctrl_data_in->data.uart_args.dev, (char *) ctrl_data_out.data.uart_args.data, num_bytes);
       ctrl_data_out.id = USRP2_CTRL_ID_I_HELLA_READ_THAT_UART_DUDE;
       ctrl_data_out.data.uart_args.bytes = num_bytes;
       break;
@@ -372,32 +250,11 @@ void handle_udp_ctrl_packet(
 
     default:
         ctrl_data_out.id = USRP2_CTRL_ID_HUH_WHAT;
-        send_udp_pkt(USRP2_UDP_CTRL_PORT, src, &ctrl_data_out, sizeof(ctrl_data_out));
     }
-    
+    send_udp_pkt(USRP2_UDP_CTRL_PORT, src, &ctrl_data_out, sizeof(ctrl_data_out));
 }
 
-/*
- * Called when an ethernet packet is received.
- * Return true if we handled it here, otherwise
- * it'll be passed on to the DSP Tx pipe
- */
-static bool
-eth_pkt_inspector(dbsm_t *sm, int bufno)
-{
-  //point me to the ethernet frame
-  uint32_t *buff = (uint32_t *)buffer_ram(bufno);
-
-  //treat this as fast-path data?
-  // We have to do this operation as fast as possible.
-  // Therefore, we do not check all the headers,
-  // just check that the udp port matches
-  // and that the vrt header is non zero.
-  // In the future, a hardware state machine will do this...
-  if ( //warning! magic numbers approaching....
-      (((buff + ((2 + 14 + 20)/sizeof(uint32_t)))[0] & 0xffff) == USRP2_UDP_DATA_PORT) &&
-      ((buff + ((2 + 14 + 20 + 8)/sizeof(uint32_t)))[1] != USRP2_INVALID_VRT_HEADER)
-  ) return false;
+static void handle_inp_packet(uint32_t *buff, size_t num_lines){
 
   //test if its an ip recovery packet
   typedef struct{
@@ -411,42 +268,30 @@ eth_pkt_inspector(dbsm_t *sm, int bufno)
   if (recovery_packet->eth_hdr.ethertype == 0xbeee && strncmp(recovery_packet->code, "addr", 4) == 0){
       printf("Got ip recovery packet: "); print_ip_addr(&recovery_packet->data.ip_addr); newline();
       set_ip_addr(&recovery_packet->data.ip_addr);
-      return true;
+      return;
   }
 
   //pass it to the slow-path handler
-  size_t len = buffer_pool_status->last_line[bufno] - 3;
-  handle_eth_packet(buff, len);
-  return true;
+  handle_eth_packet(buff, num_lines);
 }
 
-//------------------------------------------------------------------
 
-/*
- * 1's complement sum for IP and UDP headers
- *
- * init chksum to zero to start.
- */
-static unsigned int
-CHKSUM(unsigned int x, unsigned int *chksum)
-{
-  *chksum += x;
-  *chksum = (*chksum & 0xffff) + (*chksum>>16);
-  *chksum = (*chksum & 0xffff) + (*chksum>>16);
-  return x;
-}
+//------------------------------------------------------------------
 
 /*
  * Called when eth phy state changes (w/ interrupts disabled)
  */
-volatile bool link_is_up = false;	// eth handler sets this
-void
-link_changed_callback(int speed)
-{
-  link_is_up = speed != 0;
-  hal_set_leds(link_is_up ? LED_RJ45 : 0x0, LED_RJ45);
-  printf("\neth link changed: speed = %d\n", speed);
-  if (link_is_up) send_gratuitous_arp();
+void link_changed_callback(int speed){
+    printf("\neth link changed: speed = %d\n", speed);
+    if (speed != 0){
+        hal_set_leds(LED_RJ45, LED_RJ45);
+        pkt_ctrl_set_routing_mode(PKT_CTRL_ROUTING_MODE_MASTER);
+        send_gratuitous_arp();
+    }
+    else{
+        hal_set_leds(0x0, LED_RJ45);
+        pkt_ctrl_set_routing_mode(PKT_CTRL_ROUTING_MODE_SLAVE);
+    }
 }
 
 static void setup_network(void){
@@ -477,110 +322,62 @@ static void setup_network(void){
   sr_udp_sm->ip_hdr.checksum = UDP_SM_INS_IP_HDR_CHKSUM | (chksum & 0xffff);
 
   //setup the udp header machine
-  sr_udp_sm->udp_hdr.src_port = fp_socket_src.port;
-  sr_udp_sm->udp_hdr.dst_port = fp_socket_dst.port;
+  sr_udp_sm->udp_hdr.src_port = UDP_SM_INS_UDP_SRC_PORT;
+  sr_udp_sm->udp_hdr.dst_port = UDP_SM_INS_UDP_DST_PORT;
   sr_udp_sm->udp_hdr.length = UDP_SM_INS_UDP_LEN;
   sr_udp_sm->udp_hdr.checksum = UDP_SM_LAST_WORD;		// zero UDP checksum
 }
 
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  uint32_t  status = buffer_pool_status->status;
-
-  dbsm_process_status(&dsp_tx_sm, status);
-  dbsm_process_status(&dsp_rx_sm, status);
-}
-
 int
 main(void)
 {
   u2_init();
 
-//we do this to see if we should set a default ip addr or not
-#ifdef USRP2P
-  bool safe_fw = find_safe_booted_flag();
-  set_safe_booted_flag(0);
-  if(safe_fw) {
-    set_default_ip_addr();
-    set_default_mac_addr();
-  }
-#endif
-
-  putstr("\nTxRx-NEWETH\n");
-  print_mac_addr(ethernet_mac_addr()->addr);
-  newline();
+  putstr("\nTxRx-UHD-ZPU\n");
+  print_mac_addr(ethernet_mac_addr()); newline();
   print_ip_addr(get_ip_addr()); newline();
   printf("FPGA compatibility number: %d\n", USRP2_FPGA_COMPAT_NUM);
   printf("Firmware compatibility number: %d\n", USRP2_FW_COMPAT_NUM);
 
   //1) register the addresses into the network stack
-  register_mac_addr(ethernet_mac_addr());
-  register_ip_addr(get_ip_addr());
-  
+  register_addrs(ethernet_mac_addr(), get_ip_addr());
+  pkt_ctrl_program_inspector(get_ip_addr(), USRP2_UDP_DATA_PORT);
+
   //2) register callbacks for udp ports we service
+  init_udp_listeners();
   register_udp_listener(USRP2_UDP_CTRL_PORT, handle_udp_ctrl_packet);
   register_udp_listener(USRP2_UDP_DATA_PORT, handle_udp_data_packet);
+  register_udp_listener(USRP2_UDP_ERR0_PORT, handle_udp_err0_packet);
+#ifdef USRP2P
   register_udp_listener(USRP2_UDP_UPDATE_PORT, handle_udp_fw_update_packet);
+#endif
 
-  //3) setup ethernet hardware to bring the link up
+  //3) set the routing mode to slave to set defaults
+  pkt_ctrl_set_routing_mode(PKT_CTRL_ROUTING_MODE_SLAVE);
+
+  //4) setup ethernet hardware to bring the link up
   ethernet_register_link_changed_callback(link_changed_callback);
   ethernet_init();
 
-  // initialize double buffering state machine for ethernet -> DSP Tx
-
-  dbsm_init(&dsp_tx_sm, DSP_TX_BUF_0,
-	    &dsp_tx_recv_args, &dsp_tx_send_args,
-	    eth_pkt_inspector);
-
-
-  // initialize double buffering state machine for DSP RX -> Ethernet
-
-    dbsm_init(&dsp_rx_sm, DSP_RX_BUF_0,
-	      &dsp_rx_recv_args, &dsp_rx_send_args,
-	      dbsm_rx_inspector);
+  while(true){
 
-  sr_tx_ctrl->clear_state = 1;
-  bp_clear_buf(DSP_TX_BUF_0);
-  bp_clear_buf(DSP_TX_BUF_1);
-
-  // kick off the state machine
-  dbsm_start(&dsp_tx_sm);
-
-  //int which = 0;
-
-  while(1){
-    // hal_gpio_write(GPIO_TX_BANK, which, 0x8000);
-    // which ^= 0x8000;
-
-    buffer_irq_handler(0);
-
-    if(i2c_done) {
-      i2c_done = false;
-      send_udp_pkt(USRP2_UDP_CTRL_PORT, i2c_src, &ctrl_data_out, sizeof(ctrl_data_out));
-      //printf("Sending UDP packet from main loop for I2C...\n");
-    }
-
-    if(spi_done) {
-      spi_done = false;
-      send_udp_pkt(USRP2_UDP_CTRL_PORT, spi_src, &ctrl_data_out, sizeof(ctrl_data_out));
+    size_t num_lines;
+    void *buff = pkt_ctrl_claim_incoming_buffer(&num_lines);
+    if (buff != NULL){
+        handle_inp_packet((uint32_t *)buff, num_lines);
+        pkt_ctrl_release_incoming_buffer();
     }
 
+    pic_interrupt_handler();
     int pending = pic_regs->pending;		// poll for under or overrun
 
     if (pending & PIC_UNDERRUN_INT){
-      //dbsm_handle_tx_underrun(&dsp_tx_sm);
       pic_regs->pending = PIC_UNDERRUN_INT;	// clear interrupt
       putchar('U');
     }
 
     if (pending & PIC_OVERRUN_INT){
-      //dbsm_handle_rx_overrun(&dsp_rx_sm);
-      pic_regs->pending = PIC_OVERRUN_INT;	// clear pending interrupt
-
-      // FIXME Figure out how to handle this robustly.
-      // Any buffers that are emptying should be allowed to drain...
-
+      pic_regs->pending = PIC_OVERRUN_INT;	// clear interrupt
       putchar('O');
     }
   }
diff --git a/firmware/microblaze/apps/uart_flash_loader.c b/firmware/zpu/apps/uart_flash_loader.c
index d67b84677..4ec89284a 100644
--- a/firmware/microblaze/apps/uart_flash_loader.c
+++ b/firmware/zpu/apps/uart_flash_loader.c
@@ -139,8 +139,8 @@ void delay(uint32_t t) {
 }
 
 int main(int argc, char *argv[]) {
-	uint8_t buf[32];
-	int i = 0;
+	//uint8_t buf[32];
+	//int i = 0;
 
   hal_disable_ints();	// In case we got here via jmp 0x0
 
diff --git a/firmware/microblaze/bin/bin_to_mif.py b/firmware/zpu/bin/bin_to_mif.py
index cefce4e92..cefce4e92 100755
--- a/firmware/microblaze/bin/bin_to_mif.py
+++ b/firmware/zpu/bin/bin_to_mif.py
diff --git a/firmware/microblaze/bin/bin_to_ram_macro_init.py b/firmware/zpu/bin/bin_to_ram_macro_init.py
index 65cf2dbdf..085045290 100755
--- a/firmware/microblaze/bin/bin_to_ram_macro_init.py
+++ b/firmware/zpu/bin/bin_to_ram_macro_init.py
@@ -12,8 +12,9 @@ def bin_to_ram_macro_init(bin_input_file, ram_init_output_file):
     ifile = open(bin_input_file, 'rb')
     ofile = open(ram_init_output_file, 'w')
     idata = ifile.read()
-    fmt = ">%dI" % ((len(idata) / 4),)
-    words = struct.unpack(fmt, idata)
+    idata_words = len(idata) / 4
+    fmt = ">%dI"%idata_words
+    words = struct.unpack(fmt, idata[:idata_words*4])
 
     # pad to a multiple of 8 words
     r = len(words) % 8
diff --git a/firmware/microblaze/divisors.py b/firmware/zpu/bin/divisors.py
index d31bd4dad..d31bd4dad 100755
--- a/firmware/microblaze/divisors.py
+++ b/firmware/zpu/bin/divisors.py
diff --git a/firmware/microblaze/bin/elf_to_sbf b/firmware/zpu/bin/elf_to_sbf
index d1be10c0d..d1be10c0d 100755
--- a/firmware/microblaze/bin/elf_to_sbf
+++ b/firmware/zpu/bin/elf_to_sbf
diff --git a/firmware/microblaze/bin/sbf.py b/firmware/zpu/bin/sbf.py
index 8e2c868a5..8e2c868a5 100644..100755
--- a/firmware/microblaze/bin/sbf.py
+++ b/firmware/zpu/bin/sbf.py
diff --git a/firmware/microblaze/bin/serial_loader b/firmware/zpu/bin/serial_loader
index 9bd5aada7..9bd5aada7 100755
--- a/firmware/microblaze/bin/serial_loader
+++ b/firmware/zpu/bin/serial_loader
diff --git a/firmware/microblaze/bin/uart_ihex_flash_loader.py b/firmware/zpu/bin/uart_ihex_flash_loader.py
index 5a3300f34..5a3300f34 100755
--- a/firmware/microblaze/bin/uart_ihex_flash_loader.py
+++ b/firmware/zpu/bin/uart_ihex_flash_loader.py
diff --git a/firmware/microblaze/bin/uart_ihex_ram_loader.py b/firmware/zpu/bin/uart_ihex_ram_loader.py
index c90fbe1d8..c90fbe1d8 100755
--- a/firmware/microblaze/bin/uart_ihex_ram_loader.py
+++ b/firmware/zpu/bin/uart_ihex_ram_loader.py
diff --git a/firmware/zpu/lib/CMakeLists.txt b/firmware/zpu/lib/CMakeLists.txt
new file mode 100644
index 000000000..193d63cfa
--- /dev/null
+++ b/firmware/zpu/lib/CMakeLists.txt
@@ -0,0 +1,47 @@
+#
+# Copyright 2010 Ettus Research LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+########################################################################
+SET(COMMON_SRCS
+    ${CMAKE_SOURCE_DIR}/lib/u2_init.c
+    ${CMAKE_SOURCE_DIR}/lib/abort.c
+    ${CMAKE_SOURCE_DIR}/lib/ad9510.c
+    ${CMAKE_SOURCE_DIR}/lib/clocks.c
+    ${CMAKE_SOURCE_DIR}/lib/eeprom.c
+    ${CMAKE_SOURCE_DIR}/lib/eth_addrs.c
+    ${CMAKE_SOURCE_DIR}/lib/eth_mac.c
+    ${CMAKE_SOURCE_DIR}/lib/_exit.c
+    ${CMAKE_SOURCE_DIR}/lib/exit.c
+    ${CMAKE_SOURCE_DIR}/lib/hal_io.c
+    ${CMAKE_SOURCE_DIR}/lib/hal_uart.c
+    ${CMAKE_SOURCE_DIR}/lib/i2c.c
+    ${CMAKE_SOURCE_DIR}/lib/mdelay.c
+    ${CMAKE_SOURCE_DIR}/lib/memcpy_wa.c
+    ${CMAKE_SOURCE_DIR}/lib/memset_wa.c
+    ${CMAKE_SOURCE_DIR}/lib/nonstdio.c
+    ${CMAKE_SOURCE_DIR}/lib/pic.c
+    ${CMAKE_SOURCE_DIR}/lib/pkt_ctrl.c
+    ${CMAKE_SOURCE_DIR}/lib/print_addrs.c
+    ${CMAKE_SOURCE_DIR}/lib/print_rmon_regs.c
+    ${CMAKE_SOURCE_DIR}/lib/print_buffer.c
+    ${CMAKE_SOURCE_DIR}/lib/printf.c
+    ${CMAKE_SOURCE_DIR}/lib/ihex.c
+    ${CMAKE_SOURCE_DIR}/lib/spi.c
+    ${CMAKE_SOURCE_DIR}/lib/net_common.c
+    ${CMAKE_SOURCE_DIR}/lib/arp_cache.c
+    ${CMAKE_SOURCE_DIR}/lib/banal.c
+)
diff --git a/firmware/microblaze/lib/_exit.c b/firmware/zpu/lib/_exit.c
index 9b40ab2ee..9b40ab2ee 100644
--- a/firmware/microblaze/lib/_exit.c
+++ b/firmware/zpu/lib/_exit.c
diff --git a/firmware/microblaze/lib/abort.c b/firmware/zpu/lib/abort.c
index d1d709392..d1d709392 100644
--- a/firmware/microblaze/lib/abort.c
+++ b/firmware/zpu/lib/abort.c
diff --git a/firmware/microblaze/lib/ad9510.c b/firmware/zpu/lib/ad9510.c
index 4d3acb65d..4d3acb65d 100644
--- a/firmware/microblaze/lib/ad9510.c
+++ b/firmware/zpu/lib/ad9510.c
diff --git a/firmware/microblaze/lib/ad9510.h b/firmware/zpu/lib/ad9510.h
index a395e5223..a395e5223 100644
--- a/firmware/microblaze/lib/ad9510.h
+++ b/firmware/zpu/lib/ad9510.h
diff --git a/firmware/microblaze/lib/arp_cache.c b/firmware/zpu/lib/arp_cache.c
index 9c586fa6b..8e14d8f17 100644
--- a/firmware/microblaze/lib/arp_cache.c
+++ b/firmware/zpu/lib/arp_cache.c
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/lib/arp_cache.h b/firmware/zpu/lib/arp_cache.h
index 8e84a1f94..e0e125d89 100644
--- a/firmware/microblaze/lib/arp_cache.h
+++ b/firmware/zpu/lib/arp_cache.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/lib/banal.c b/firmware/zpu/lib/banal.c
index 42937957f..dfb8df355 100644
--- a/firmware/microblaze/lib/banal.c
+++ b/firmware/zpu/lib/banal.c
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/lib/banal.h b/firmware/zpu/lib/banal.h
index 7b3c71a20..e9e55bca5 100644
--- a/firmware/microblaze/lib/banal.h
+++ b/firmware/zpu/lib/banal.h
@@ -1,6 +1,6 @@
 /* -*- c -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,24 +19,8 @@
 #define INCLUDED_BANAL_H
 
 #include <stdint.h>
-#include <lwip/ip_addr.h>
 
-/*
- * 1's complement sum for IP and UDP headers
- *
- * init chksum to zero to start.
- */
-static inline unsigned int
-CHKSUM(unsigned int x, unsigned int *chksum)
-{
-  *chksum += x;
-  *chksum = (*chksum & 0xffff) + (*chksum>>16);
-  *chksum = (*chksum & 0xffff) + (*chksum>>16);
-  return x;
-}
-
-unsigned int 
-chksum_buffer(unsigned short *buf, int nshorts, unsigned int initial_chksum);
+#define dimof(x) (sizeof(x)/sizeof(x[0]))
 
 //-------------- unsigned get_int 8, 16, 32, 64 --------------//
 
@@ -84,7 +68,4 @@ get_int64(const unsigned char *s)
   return get_uint64(s);
 }
 
-void
-print_ip(struct ip_addr ip);
-
 #endif /* INCLUDED_BANAL_H */
diff --git a/firmware/microblaze/lib/clock_bits.h b/firmware/zpu/lib/clock_bits.h
index d2052e941..d2052e941 100644
--- a/firmware/microblaze/lib/clock_bits.h
+++ b/firmware/zpu/lib/clock_bits.h
diff --git a/firmware/microblaze/lib/clocks.c b/firmware/zpu/lib/clocks.c
index 2b352a385..2b352a385 100644
--- a/firmware/microblaze/lib/clocks.c
+++ b/firmware/zpu/lib/clocks.c
diff --git a/firmware/microblaze/lib/clocks.h b/firmware/zpu/lib/clocks.h
index 28d1d542f..28d1d542f 100644
--- a/firmware/microblaze/lib/clocks.h
+++ b/firmware/zpu/lib/clocks.h
diff --git a/firmware/microblaze/lib/compiler.h b/firmware/zpu/lib/compiler.h
index 4fa9b49f8..f677bdc3b 100644
--- a/firmware/microblaze/lib/compiler.h
+++ b/firmware/zpu/lib/compiler.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009, 2010 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,5 +21,6 @@
 // FIXME gcc specific.
 #define _AL4   __attribute__((aligned (4)))
 
+#define FORCE_INLINE inline __attribute__((always_inline))
 
 #endif /* INCLUDED_COMPILER_H */
diff --git a/firmware/microblaze/lib/eeprom.c b/firmware/zpu/lib/eeprom.c
index d4e170046..d4e170046 100644
--- a/firmware/microblaze/lib/eeprom.c
+++ b/firmware/zpu/lib/eeprom.c
diff --git a/firmware/microblaze/lib/eth_addrs.c b/firmware/zpu/lib/eth_addrs.c
index ff5d04f4d..c45ce7559 100644
--- a/firmware/microblaze/lib/eth_addrs.c
+++ b/firmware/zpu/lib/eth_addrs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010 Ettus Research LLC
+ * Copyright 2010-2011 Ettus Research LLC
  * Copyright 2007 Free Software Foundation, Inc.
  *
  * This program is free software: you can redistribute it and/or modify
@@ -23,12 +23,6 @@
 #include "i2c.h"
 #include "usrp2/fw_common.h"
 
-////////////////////////////////////////////////////////////////////////
-// EEPROM Layout
-////////////////////////////////////////////////////////////////////////
-#define USRP2_EE_MBOARD_MAC_ADDR 0x02 //6 bytes
-#define USRP2_EE_MBOARD_IP_ADDR  0x0C //uint32, big-endian
-
 static bool
 unprogrammed(const void *t, size_t len)
 {
@@ -45,7 +39,7 @@ unprogrammed(const void *t, size_t len)
 
 //////////////////// MAC Addr Stuff ///////////////////////
 
-static int8_t src_mac_addr_initialized = false;
+static bool src_mac_addr_initialized = false;
 
 static const eth_mac_addr_t default_mac_addr = {{
     0x00, 0x50, 0xC2, 0x85, 0x3f, 0xff
@@ -98,7 +92,7 @@ ethernet_set_mac_addr(const eth_mac_addr_t *t)
 
 //////////////////// IP Addr Stuff ///////////////////////
 
-static int8_t src_ip_addr_initialized = false;
+static bool src_ip_addr_initialized = false;
 
 static const struct ip_addr default_ip_addr = {
     (192 << 24 | 168 << 16 | 10 << 8 | 2 << 0)
diff --git a/firmware/microblaze/lib/eth_mac.c b/firmware/zpu/lib/eth_mac.c
index 034a4d494..581a5c69f 100644
--- a/firmware/microblaze/lib/eth_mac.c
+++ b/firmware/zpu/lib/eth_mac.c
@@ -28,6 +28,7 @@
 void
 eth_mac_set_addr(const eth_mac_addr_t *src)
 {
+  /* disable because MAC_SET_PASS_ALL is set below
   eth_mac->ucast_hi = 
     (((unsigned int)src->addr[0])<<8) + 
     ((unsigned int)src->addr[1]);
@@ -36,6 +37,7 @@ eth_mac_set_addr(const eth_mac_addr_t *src)
     (((unsigned int)src->addr[3])<<16) +
     (((unsigned int)src->addr[4])<<8) +
     (((unsigned int)src->addr[5]));
+*/
 }
 
 
@@ -45,7 +47,7 @@ eth_mac_init(const eth_mac_addr_t *src)
   eth_mac->miimoder = 25;	// divider from CPU clock (50MHz/25 = 2MHz)
 
   eth_mac_set_addr(src);
-  eth_mac->settings = MAC_SET_PAUSE_EN | MAC_SET_PASS_BCAST | MAC_SET_PASS_UCAST | MAC_SET_PAUSE_SEND_EN; 
+  eth_mac->settings = MAC_SET_PAUSE_EN | MAC_SET_PASS_BCAST | MAC_SET_PASS_UCAST | MAC_SET_PAUSE_SEND_EN | MAC_SET_PASS_ALL;
 
   eth_mac->pause_time = 38;
   eth_mac->pause_thresh = 1200;
diff --git a/firmware/microblaze/lib/eth_mac.h b/firmware/zpu/lib/eth_mac.h
index 73feec955..73feec955 100644
--- a/firmware/microblaze/lib/eth_mac.h
+++ b/firmware/zpu/lib/eth_mac.h
diff --git a/firmware/microblaze/lib/eth_mac_regs.h b/firmware/zpu/lib/eth_mac_regs.h
index d680f8de0..d680f8de0 100644
--- a/firmware/microblaze/lib/eth_mac_regs.h
+++ b/firmware/zpu/lib/eth_mac_regs.h
diff --git a/firmware/microblaze/lib/ethernet.h b/firmware/zpu/lib/ethernet.h
index 52b297349..52b297349 100644
--- a/firmware/microblaze/lib/ethernet.h
+++ b/firmware/zpu/lib/ethernet.h
diff --git a/firmware/microblaze/lib/ethertype.h b/firmware/zpu/lib/ethertype.h
index 11f4bafec..235981193 100644
--- a/firmware/microblaze/lib/ethertype.h
+++ b/firmware/zpu/lib/ethertype.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/lib/exit.c b/firmware/zpu/lib/exit.c
index 95a3bf4de..95a3bf4de 100644
--- a/firmware/microblaze/lib/exit.c
+++ b/firmware/zpu/lib/exit.c
diff --git a/firmware/microblaze/lib/hal_io.c b/firmware/zpu/lib/hal_io.c
index be4c570c7..1d137943c 100644
--- a/firmware/microblaze/lib/hal_io.c
+++ b/firmware/zpu/lib/hal_io.c
@@ -253,11 +253,11 @@ fngets(hal_uart_name_t u, char * const s, int len)
 }
 
 int
-fngets_timeout(hal_uart_name_t u, char * const s, int len)
+fngets_noblock(hal_uart_name_t u, char * const s, int len)
 {
   char *x = s;
 
-  while(((*x=(char)hal_uart_getc_timeout(u)) != '\n') && (*x != -1) && ((x-s) < len)) x++;
+  while(((*x=(char)hal_uart_getc_noblock(u)) != '\n') && (*x != 255) && ((x-s) < len)) x++;
   *x = 0;
   //printf("Returning from fngets() with string %d of length %d\n", s[0], x-s);
   return (x-s);
diff --git a/firmware/microblaze/lib/hal_io.h b/firmware/zpu/lib/hal_io.h
index 950f8d591..7a617685c 100644
--- a/firmware/microblaze/lib/hal_io.h
+++ b/firmware/zpu/lib/hal_io.h
@@ -28,7 +28,7 @@ char *gets(char * const s);
 int fputstr(hal_uart_name_t u, const char *s);
 int fnputstr(hal_uart_name_t u, const char *s, int len);
 int fngets(hal_uart_name_t u, char * const s, int len);
-int fngets_timeout(hal_uart_name_t u, char * const s, int len);
+int fngets_noblock(hal_uart_name_t u, char * const s, int len);
 
 /*
  * ------------------------------------------------------------------------
@@ -70,13 +70,7 @@ hal_set_timeout(int delta_ticks)
 static inline int
 hal_disable_ints(void)
 {
-  int result, t0;
-
-  asm volatile("mfs   %0, rmsr       \n\
-		andni %1, %0, 0x2    \n\
-		mts   rmsr, %1"
-	       : "=r" (result), "=r" (t0));
-  return result;
+  return 0; /* NOP */
 }
 
 /*!
@@ -86,13 +80,7 @@ hal_disable_ints(void)
 static inline int
 hal_enable_ints(void)
 {
-  int result, t0;
-
-  asm volatile("mfs  %0, rmsr	      \n\
-		ori  %1, %0, 0x2      \n\
-		mts  rmsr, %1"
-	       : "=r" (result), "=r" (t0));
-  return result;
+  return 0; /* NOP */
 }
 
 /*!
@@ -102,13 +90,7 @@ hal_enable_ints(void)
 static inline void
 hal_restore_ints(int prev_state)
 {
-  int t0, t1;
-  asm volatile("andi  %0, %2, 0x2	\n\
-		mfs   %1, rmsr          \n\
-		andni %1, %1, 0x2	\n\
-		or    %1, %1, %0	\n\
-		mts   rmsr, %1"
-	       : "=r" (t0), "=r"(t1) : "r" (prev_state));
+    /* NOP */
 }
 
 #endif /* INCLUDED_HAL_IO_H */
diff --git a/firmware/microblaze/lib/hal_uart.c b/firmware/zpu/lib/hal_uart.c
index 7836240fe..6a37cceb6 100644
--- a/firmware/microblaze/lib/hal_uart.c
+++ b/firmware/zpu/lib/hal_uart.c
@@ -103,17 +103,18 @@ hal_uart_getc(hal_uart_name_t u)
 }
 
 int 
-hal_uart_getc_timeout(hal_uart_name_t u)
+hal_uart_getc_noblock(hal_uart_name_t u)
 {
-  int timeout = 0;
-  while (((uart_regs[u].rxlevel) == 0) && (timeout++ < HAL_UART_TIMEOUT_MS))
-    mdelay(1);
-  return (timeout >= HAL_UART_TIMEOUT_MS) ? -1 : uart_regs[u].rxchar; //return -1 if nothing there, cause fngets to quit
+//  int timeout = 0;
+//  while (((uart_regs[u].rxlevel) == 0) && (timeout++ < HAL_UART_TIMEOUT_MS))
+//    mdelay(1);
+  if(uart_regs[u].rxlevel == 0) return 255;
+  return uart_regs[u].rxchar;
 }
 
 int hal_uart_rx_flush(hal_uart_name_t u)
 {
-  char x;
+  char x = 0;
   while(uart_regs[u].rxlevel) x = uart_regs[u].rxchar;
   return x;
 }
diff --git a/firmware/microblaze/lib/hal_uart.h b/firmware/zpu/lib/hal_uart.h
index 758c8cb5e..793aface0 100644
--- a/firmware/microblaze/lib/hal_uart.h
+++ b/firmware/zpu/lib/hal_uart.h
@@ -27,8 +27,6 @@
 
 #define DEFAULT_UART UART_DEBUG //which UART printf, gets, etc. use
 
-#define HAL_UART_TIMEOUT_MS 300
-
 typedef enum {
   US_9600   = 0,
   US_19200  = 1,
@@ -85,9 +83,9 @@ void hal_uart_putc_nowait(hal_uart_name_t u, int ch);
 int hal_uart_getc(hal_uart_name_t u);
 
 /*
- * \brief Blocking read of next char from serial port with timeout
+ * \brief Non-blocking read of next char from serial port, return -1 if nothing available
  */
-int hal_uart_getc_timeout(hal_uart_name_t u);
+int hal_uart_getc_noblock(hal_uart_name_t u);
 
 int hal_uart_rx_flush(hal_uart_name_t u);
 
diff --git a/firmware/microblaze/lib/i2c.c b/firmware/zpu/lib/i2c.c
index d230f462c..d230f462c 100644
--- a/firmware/microblaze/lib/i2c.c
+++ b/firmware/zpu/lib/i2c.c
diff --git a/firmware/microblaze/lib/i2c.h b/firmware/zpu/lib/i2c.h
index 1af4d72df..1af4d72df 100644
--- a/firmware/microblaze/lib/i2c.h
+++ b/firmware/zpu/lib/i2c.h
diff --git a/firmware/microblaze/lib/i2c_async.c b/firmware/zpu/lib/i2c_async.c
index 05c4c3a09..05c4c3a09 100644
--- a/firmware/microblaze/lib/i2c_async.c
+++ b/firmware/zpu/lib/i2c_async.c
diff --git a/firmware/microblaze/lib/i2c_async.h b/firmware/zpu/lib/i2c_async.h
index e6095fca6..e6095fca6 100644
--- a/firmware/microblaze/lib/i2c_async.h
+++ b/firmware/zpu/lib/i2c_async.h
diff --git a/firmware/microblaze/lib/if_arp.h b/firmware/zpu/lib/if_arp.h
index 63519c4be..63519c4be 100644
--- a/firmware/microblaze/lib/if_arp.h
+++ b/firmware/zpu/lib/if_arp.h
diff --git a/firmware/microblaze/lib/ihex.c b/firmware/zpu/lib/ihex.c
index 97ecf73b6..97ecf73b6 100644
--- a/firmware/microblaze/lib/ihex.c
+++ b/firmware/zpu/lib/ihex.c
diff --git a/firmware/microblaze/lib/ihex.h b/firmware/zpu/lib/ihex.h
index 9f471fbe2..9f471fbe2 100644
--- a/firmware/microblaze/lib/ihex.h
+++ b/firmware/zpu/lib/ihex.h
diff --git a/firmware/microblaze/apps/cruft/blink_leds.c b/firmware/zpu/lib/mdelay.c
index 682ca8db2..8f9b14112 100644
--- a/firmware/microblaze/apps/cruft/blink_leds.c
+++ b/firmware/zpu/lib/mdelay.c
@@ -1,3 +1,4 @@
+/* -*- c -*- */
 /*
  * Copyright 2007 Free Software Foundation, Inc.
  *
@@ -15,26 +16,16 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
+#include "mdelay.h"
 #include "memory_map.h"
-#include "hal_io.h"
-#include "nonstdio.h"
-
-int
-main(void)
-{
-  int	counter = 0;
 
-  u2_init();
-  
-  putstr("blink_leds\n");
-  while(1){
-    output_regs->leds = (counter++ & 0x3);
+void mdelay(int ms){
+  if (hwconfig_simulation_p()) return;
+  for(int i = 0; i < ms; i++){
+    static const uint32_t num_ticks = MASTER_CLK_RATE/1000;
+    const uint32_t ticks_begin = router_status->time64_ticks_rb;
+    while((router_status->time64_ticks_rb - ticks_begin) < num_ticks){
+      /*NOP*/
+    }
   }
-  
-  return 0;
 }
diff --git a/firmware/microblaze/lib/mdelay.h b/firmware/zpu/lib/mdelay.h
index 226bbb3f7..226bbb3f7 100644
--- a/firmware/microblaze/lib/mdelay.h
+++ b/firmware/zpu/lib/mdelay.h
diff --git a/firmware/microblaze/lib/memcpy_wa.c b/firmware/zpu/lib/memcpy_wa.c
index ef20efaa9..ef20efaa9 100644
--- a/firmware/microblaze/lib/memcpy_wa.c
+++ b/firmware/zpu/lib/memcpy_wa.c
diff --git a/firmware/microblaze/lib/memcpy_wa.h b/firmware/zpu/lib/memcpy_wa.h
index 072fc148f..072fc148f 100644
--- a/firmware/microblaze/lib/memcpy_wa.h
+++ b/firmware/zpu/lib/memcpy_wa.h
diff --git a/firmware/microblaze/lib/memset_wa.c b/firmware/zpu/lib/memset_wa.c
index da5da21ab..da5da21ab 100644
--- a/firmware/microblaze/lib/memset_wa.c
+++ b/firmware/zpu/lib/memset_wa.c
diff --git a/firmware/microblaze/lib/memset_wa.h b/firmware/zpu/lib/memset_wa.h
index 46d903d53..46d903d53 100644
--- a/firmware/microblaze/lib/memset_wa.h
+++ b/firmware/zpu/lib/memset_wa.h
diff --git a/firmware/microblaze/lib/net/eth_mac_addr.h b/firmware/zpu/lib/net/eth_mac_addr.h
index b44fb68f7..01bf91988 100644
--- a/firmware/microblaze/lib/net/eth_mac_addr.h
+++ b/firmware/zpu/lib/net/eth_mac_addr.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/lib/net/padded_eth_hdr.h b/firmware/zpu/lib/net/padded_eth_hdr.h
index df816734f..df816734f 100644
--- a/firmware/microblaze/lib/net/padded_eth_hdr.h
+++ b/firmware/zpu/lib/net/padded_eth_hdr.h
diff --git a/firmware/microblaze/lib/net/socket_address.h b/firmware/zpu/lib/net/socket_address.h
index 336f30a0c..336f30a0c 100644
--- a/firmware/microblaze/lib/net/socket_address.h
+++ b/firmware/zpu/lib/net/socket_address.h
diff --git a/firmware/microblaze/lib/net_common.c b/firmware/zpu/lib/net_common.c
index 6305408d6..ec9198090 100644
--- a/firmware/microblaze/lib/net_common.c
+++ b/firmware/zpu/lib/net_common.c
@@ -22,7 +22,6 @@
 #include "net_common.h"
 #include "banal.h"
 #include <hal_io.h>
-#include <buffer_pool.h>
 #include <memory_map.h>
 #include <memcpy_wa.h>
 #include <ethernet.h>
@@ -36,28 +35,21 @@
 #include "if_arp.h"
 #include <ethertype.h>
 #include <string.h>
+#include "pkt_ctrl.h"
 
+static const bool debug = false;
 
-int cpu_tx_buf_dest_port = PORT_ETH;
+static const eth_mac_addr_t BCAST_MAC_ADDR = {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}};
 
-// If this is non-zero, this dbsm could be writing to the ethernet
-dbsm_t *ac_could_be_sending_to_eth;
-
-static inline bool
-ip_addr_eq(const struct ip_addr a, const struct ip_addr b)
-{
-  return a.addr == b.addr;
-}
+//used in the top level application...
+struct socket_address fp_socket_src, fp_socket_dst;
 
 // ------------------------------------------------------------------------
 
 static eth_mac_addr_t _local_mac_addr;
-void register_mac_addr(const eth_mac_addr_t *mac_addr){
-    _local_mac_addr = *mac_addr;
-}
-
 static struct ip_addr _local_ip_addr;
-void register_ip_addr(const struct ip_addr *ip_addr){
+void register_addrs(const eth_mac_addr_t *mac_addr, const struct ip_addr *ip_addr){
+    _local_mac_addr = *mac_addr;
     _local_ip_addr = *ip_addr;
 }
 
@@ -72,6 +64,12 @@ struct listener_entry {
 
 static struct listener_entry listeners[MAX_UDP_LISTENERS];
 
+void init_udp_listeners(void){
+    for (int i = 0; i < MAX_UDP_LISTENERS; i++){
+        listeners[i].rcvr = NULL;
+    }
+}
+
 static struct listener_entry *
 find_listener_by_port(unsigned short port)
 {
@@ -86,7 +84,7 @@ static struct listener_entry *
 find_free_listener(void)
 {
   for (int i = 0; i < MAX_UDP_LISTENERS; i++){
-    if (listeners[i].rcvr == 0)
+    if (listeners[i].rcvr == NULL)
       return &listeners[i];
   }
   abort();
@@ -126,13 +124,6 @@ send_pkt(eth_mac_addr_t dst, int ethertype,
 	 const void *buf1, size_t len1,
 	 const void *buf2, size_t len2)
 {
-  // Wait for buffer to become idle
-  // FIXME can this ever not be ready?
-
-  //hal_set_leds(LED_BUF_BUSY, LED_BUF_BUSY);
-  while((buffer_pool_status->status & BPS_IDLE(CPU_TX_BUF)) == 0)
-    ;
-  //hal_set_leds(0, LED_BUF_BUSY);
 
   // Assemble the header
   padded_eth_hdr_t	ehdr;
@@ -141,9 +132,10 @@ send_pkt(eth_mac_addr_t dst, int ethertype,
   ehdr.src = _local_mac_addr;
   ehdr.ethertype = ethertype;
 
-  uint32_t *p = buffer_ram(CPU_TX_BUF);
+  uint32_t *buff = (uint32_t *)pkt_ctrl_claim_outgoing_buffer();
 
   // Copy the pieces into the buffer
+  uint32_t *p = buff;
   *p++ = 0x0;  				  // slow path
   memcpy_wa(p, &ehdr, sizeof(ehdr));      // 4 lines
   p += sizeof(ehdr)/sizeof(uint32_t);
@@ -173,34 +165,23 @@ send_pkt(eth_mac_addr_t dst, int ethertype,
     p += len2/sizeof(uint32_t);
   }
 
-  size_t total_len = (p - buffer_ram(CPU_TX_BUF)) * sizeof(uint32_t);
+  size_t total_len = (p - buff) * sizeof(uint32_t);
   if (total_len < 60)		// ensure that we don't try to send a short packet
     total_len = 60;
-  
-  // wait until nobody else is sending to the ethernet
-  if (ac_could_be_sending_to_eth){
-    //hal_set_leds(LED_ETH_BUSY, LED_ETH_BUSY);
-    dbsm_wait_for_opening(ac_could_be_sending_to_eth);
-    //hal_set_leds(0x0, LED_ETH_BUSY);
-  }
-
-  if (0){
-    printf("send_pkt to port %d, len = %d\n",
-	   cpu_tx_buf_dest_port, (int) total_len);
-    print_buffer(buffer_ram(CPU_TX_BUF), total_len/4);
-  }
-
-  // fire it off
-  bp_send_from_buf(CPU_TX_BUF, cpu_tx_buf_dest_port, 1, 0, total_len/4);
 
-  // wait for it to complete (not long, it's a small pkt)
-  while((buffer_pool_status->status & (BPS_DONE(CPU_TX_BUF) | BPS_ERROR(CPU_TX_BUF))) == 0)
-    ;
+  pkt_ctrl_commit_outgoing_buffer(total_len/4);
+  if (debug) printf("sent %d bytes\n", (int)total_len);
+}
 
-  bp_clear_buf(CPU_TX_BUF);
+unsigned int CHKSUM(unsigned int x, unsigned int *chksum)
+{
+  *chksum += x;
+  *chksum = (*chksum & 0xffff) + (*chksum>>16);
+  *chksum = (*chksum & 0xffff) + (*chksum>>16);
+  return x;
 }
 
-unsigned int 
+static unsigned int
 chksum_buffer(unsigned short *buf, int nshorts, unsigned int initial_chksum)
 {
   unsigned int chksum = initial_chksum;
@@ -210,7 +191,6 @@ chksum_buffer(unsigned short *buf, int nshorts, unsigned int initial_chksum)
   return chksum;
 }
 
-
 void
 send_ip_pkt(struct ip_addr dst, int protocol,
 	    const void *buf0, size_t len0,
@@ -235,7 +215,7 @@ send_ip_pkt(struct ip_addr dst, int protocol,
   bool found = arp_cache_lookup_mac(&ip.dest, &dst_mac);
   if (!found){
     printf("net_common: failed to hit cache looking for ");
-    print_ip(ip.dest);
+    print_ip_addr(&ip.dest);
     newline();
     return;
   }
@@ -294,6 +274,11 @@ handle_icmp_packet(struct ip_addr src, struct ip_addr dst,
     if (icmp->code == ICMP_DUR_PORT){	// port unreachable
       //handle destination port unreachable (the host ctrl+c'd the app):
 
+      //filter out non udp data response
+      struct ip_hdr *ip = (struct ip_hdr *)(((uint8_t*)icmp) + sizeof(struct icmp_echo_hdr));
+      struct udp_hdr *udp = (struct udp_hdr *)(((char *)ip) + IP_HLEN);
+      if (IPH_PROTO(ip) != IP_PROTO_UDP || udp->dest != fp_socket_dst.port) return;
+
       //end async update packets per second
       sr_tx_ctrl->cyc_per_up = 0;
 
@@ -335,12 +320,6 @@ handle_icmp_packet(struct ip_addr src, struct ip_addr dst,
   }
 }
 
-static void __attribute__((unused))
-print_arp_ip(const unsigned char ip[4])
-{
-  printf("%d.%d.%d.%d", ip[0], ip[1], ip[2],ip[3]);
-}
-
 static void
 send_arp_reply(struct arp_eth_ipv4 *req, eth_mac_addr_t our_mac)
 {
@@ -373,8 +352,7 @@ void send_gratuitous_arp(void){
   memcpy(req.ar_tip, get_ip_addr(),       sizeof(struct ip_addr));
 
   //send the request with a broadcast ethernet mac address
-  eth_mac_addr_t t; memset(&t, 0xff, sizeof(t));
-  send_pkt(t, ETHERTYPE_ARP, &req, sizeof(req), 0, 0, 0, 0);
+  send_pkt(BCAST_MAC_ADDR, ETHERTYPE_ARP, &req, sizeof(req), 0, 0, 0, 0);
 }
 
 static void
@@ -392,9 +370,9 @@ handle_arp_packet(struct arp_eth_ipv4 *p, size_t size)
     printf("ar_pln = %d\n", p->ar_pln);
     printf("ar_op  = %d\n", p->ar_op);
     printf("ar_sha = "); print_mac_addr(p->ar_sha); newline();
-    printf("ar_sip = "); print_arp_ip(p->ar_sip);    newline();
+    printf("ar_sip = "); print_ip_addr (p->ar_sip); newline();
     printf("ar_tha = "); print_mac_addr(p->ar_tha); newline();
-    printf("ar_tip = "); print_arp_ip(p->ar_tip);    newline();
+    printf("ar_tip = "); print_ip_addr (p->ar_tip); newline();
   }
 
   if (p->ar_hrd != ARPHRD_ETHER
@@ -412,7 +390,7 @@ handle_arp_packet(struct arp_eth_ipv4 *p, size_t size)
   sip.addr = get_int32(p->ar_sip);
   tip.addr = get_int32(p->ar_tip);
 
-  if (ip_addr_eq(tip, _local_ip_addr)){	// They're looking for us...
+  if (memcmp(&tip, &_local_ip_addr, sizeof(_local_ip_addr)) == 0){	// They're looking for us...
     send_arp_reply(p, _local_mac_addr);
   }
 }
@@ -420,15 +398,17 @@ handle_arp_packet(struct arp_eth_ipv4 *p, size_t size)
 void
 handle_eth_packet(uint32_t *p, size_t nlines)
 {
-  //print_buffer(p, nlines);
+  static size_t bcount = 0;
+  if (debug) printf("===> %d\n", (int)bcount++);
+  if (debug) print_buffer(p, nlines);
 
-  int ethertype = p[3] & 0xffff;
+  padded_eth_hdr_t *eth_hdr = (padded_eth_hdr_t *)p;
 
-  if (ethertype == ETHERTYPE_ARP){
+  if (eth_hdr->ethertype == ETHERTYPE_ARP){
     struct arp_eth_ipv4 *arp = (struct arp_eth_ipv4 *)(p + 4);
     handle_arp_packet(arp, nlines*sizeof(uint32_t) - 14);
   }
-  else if (ethertype == ETHERTYPE_IPV4){
+  else if (eth_hdr->ethertype == ETHERTYPE_IPV4){
     struct ip_hdr *ip = (struct ip_hdr *)(p + 4);
     if (IPH_V(ip) != 4 || IPH_HL(ip) != 5)	// ignore pkts w/ bad version or options
       return;
@@ -436,7 +416,10 @@ handle_eth_packet(uint32_t *p, size_t nlines)
     if (IPH_OFFSET(ip) & (IP_MF | IP_OFFMASK))	// ignore fragmented packets
       return;
 
-    // FIXME filter on dest ip addr (should be broadcast or for us)
+    // filter on dest ip addr (should be broadcast or for us)
+    bool is_bcast = memcmp(&eth_hdr->dst, &BCAST_MAC_ADDR, sizeof(BCAST_MAC_ADDR)) == 0;
+    bool is_my_ip = memcmp(&ip->dest, &_local_ip_addr, sizeof(_local_ip_addr)) == 0;
+    if (!is_bcast && !is_my_ip) return;
 
     arp_cache_update(&ip->src, (eth_mac_addr_t *)(((char *)p)+8));
 
@@ -459,16 +442,3 @@ handle_eth_packet(uint32_t *p, size_t nlines)
   else
     return;	// Not ARP or IPV4, ignore
 }
-
-// ------------------------------------------------------------------------
-
-void
-print_ip(struct ip_addr ip)
-{
-  unsigned int t = ntohl(ip.addr);
-  printf("%d.%d.%d.%d",
-	 (t >> 24) & 0xff,
-	 (t >> 16) & 0xff,
-	 (t >>  8) & 0xff,
-	 t & 0xff);
-}
diff --git a/firmware/microblaze/lib/net_common.h b/firmware/zpu/lib/net_common.h
index 3040e5ef3..409022352 100644
--- a/firmware/microblaze/lib/net_common.h
+++ b/firmware/zpu/lib/net_common.h
@@ -20,25 +20,22 @@
 
 #include <stdint.h>
 #include <stddef.h>
-#include <dbsm.h>
 #include <net/socket_address.h>
 #include <net/eth_mac_addr.h>
 
-#define CPU_TX_BUF 	7	// cpu -> eth
-
-extern int cpu_tx_buf_dest_port;
-
-// If this is non-zero, this dbsm could be writing to the ethernet
-extern dbsm_t *ac_could_be_sending_to_eth;
-
-void stop_streaming(void);
+/*
+ * 1's complement sum for IP and UDP headers
+ *
+ * init chksum to zero to start.
+ */
+unsigned int CHKSUM(unsigned int x, unsigned int *chksum);
 
 typedef void (*udp_receiver_t)(struct socket_address src, struct socket_address dst,
 			       unsigned char *payload, int payload_len);
 
-void register_mac_addr(const eth_mac_addr_t *mac_addr);
+void init_udp_listeners(void);
 
-void register_ip_addr(const struct ip_addr *ip_addr);
+void register_addrs(const eth_mac_addr_t *mac_addr, const struct ip_addr *ip_addr);
 
 void register_udp_listener(int port, udp_receiver_t rcvr);
 
diff --git a/firmware/microblaze/lib/nonstdio.c b/firmware/zpu/lib/nonstdio.c
index 4b5fa4123..4b5fa4123 100644
--- a/firmware/microblaze/lib/nonstdio.c
+++ b/firmware/zpu/lib/nonstdio.c
diff --git a/firmware/microblaze/lib/nonstdio.h b/firmware/zpu/lib/nonstdio.h
index 62ebfa46d..a47a6df6e 100644
--- a/firmware/microblaze/lib/nonstdio.h
+++ b/firmware/zpu/lib/nonstdio.h
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 /*
  * Copyright 2007 Free Software Foundation, Inc.
@@ -38,11 +38,10 @@ void puthex32_nl(unsigned long x);
 #define puthex_nl puthex32_nl
 void newline();				// putchar('\n')
 
-void print_mac_addr(const unsigned char addr[6]);
-void print_uint64(uint64_t v);
+void print_mac_addr(const void *addr);
+
+void print_ip_addr(const void *addr);
 
 void print_buffer(uint32_t *buf, size_t n);
-//char *itoa(signed long value, char *result, int base);
-//void reverse(char s[]);
 
 #endif /* INCLUDED_NONSTDIO_H */
diff --git a/firmware/microblaze/lib/pic.c b/firmware/zpu/lib/pic.c
index 226da5f85..bd627ce6b 100644
--- a/firmware/microblaze/lib/pic.c
+++ b/firmware/zpu/lib/pic.c
@@ -26,17 +26,7 @@
 /*
  * Our secondary interrupt vector.
  */
-irq_handler_t pic_vector[NVECTORS] = {
-  nop_handler,
-  nop_handler,
-  nop_handler,
-  nop_handler,
-  nop_handler,
-  nop_handler,
-  nop_handler,
-  nop_handler
-};
-
+irq_handler_t pic_vector[NVECTORS];
 
 void
 pic_init(void)
@@ -47,6 +37,10 @@ pic_init(void)
   pic_regs->edge_enable = PIC_ONETIME_INT | PIC_UNDERRUN_INT | PIC_OVERRUN_INT | PIC_PPS_INT;
   pic_regs->polarity = ~0 & ~PIC_PHY_INT;	       // rising edge
   pic_regs->pending = ~0;			       // clear all pending ints
+
+  for (int i = 0; i < NVECTORS; i++){
+    pic_vector[i] = pic_nop_handler;
+  }
 }
 
 /*
@@ -54,7 +48,8 @@ pic_init(void)
  * system interrupt handler with the appropriate prologue and
  * epilogue.
  */
-void pic_interrupt_handler() __attribute__ ((interrupt_handler));
+//FIXME zpu-gcc does not install interrupt_handler like this
+//void pic_interrupt_handler() __attribute__ ((interrupt_handler));
 
 void pic_interrupt_handler()
 {
@@ -88,7 +83,7 @@ pic_register_handler(unsigned irq, irq_handler_t handler)
 }
 
 void
-nop_handler(unsigned irq)
+pic_nop_handler(unsigned irq)
 {
   // nop
 }
diff --git a/firmware/microblaze/lib/pic.h b/firmware/zpu/lib/pic.h
index 68918f9ad..cfdf721f4 100644
--- a/firmware/microblaze/lib/pic.h
+++ b/firmware/zpu/lib/pic.h
@@ -24,12 +24,13 @@ typedef void (*irq_handler_t)(unsigned irq);
 void pic_init(void);
 void pic_register_handler(unsigned irq, irq_handler_t handler);
 
-void nop_handler(unsigned irq);	// default handler does nothing
+void pic_nop_handler(unsigned irq);	// default handler does nothing
 
 // FIXME inline assembler
 int  pic_disable_interrupts();
 int  pic_enable_interrupts();
 void pic_restore_interrupts(int prev_status);
 
+void pic_interrupt_handler();
 
 #endif /* INCLUDED_PIC_H */
diff --git a/firmware/zpu/lib/pkt_ctrl.c b/firmware/zpu/lib/pkt_ctrl.c
new file mode 100644
index 000000000..2bbe2f843
--- /dev/null
+++ b/firmware/zpu/lib/pkt_ctrl.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2010-2011 Ettus Research LLC
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "pkt_ctrl.h"
+#include "memory_map.h"
+#include <nonstdio.h>
+
+//status signals from WB into PR
+#define CPU_STAT_RD_DONE (1 << 0)
+#define CPU_STAT_RD_EROR (1 << 1)
+#define CPU_STAT_RD_IDLE (1 << 2)
+
+//status signals from PR into WB
+#define CPU_STAT_WR_DONE (1 << 4)
+#define CPU_STAT_WR_EROR (1 << 5)
+#define CPU_STAT_WR_IDLE (1 << 6)
+
+//control signals from WB into PR
+#define CPU_CTRL_RD_CLEAR (1 << 0)
+#define CPU_CTRL_RD_START (1 << 1)
+
+//control signals from PR into WB
+#define CPU_CTRL_WR_CLEAR (1 << 2)
+#define CPU_CTRL_WR_START (1 << 3)
+
+void pkt_ctrl_program_inspector(
+    const struct ip_addr *ip_addr, uint16_t data_port
+){
+    router_ctrl->ip_addr = ip_addr->addr;
+    router_ctrl->data_ports = data_port;
+}
+
+void pkt_ctrl_set_routing_mode(pkt_ctrl_routing_mode_t mode){
+    //About to change the mode; ensure that we are accepting packets.
+    //The plumbing will not switch if it cannot pass an end of packet.
+    pkt_ctrl_release_incoming_buffer();
+
+    //Change the mode; this switches the valves and crossbars.
+    router_ctrl->mode_ctrl = mode;
+}
+
+static inline void cpu_stat_wait_for(int bm){
+    while((router_status->status & bm) == 0){
+        /* NOP */
+    }
+}
+
+void *pkt_ctrl_claim_incoming_buffer(size_t *num_lines){
+    uint32_t status = router_status->status;
+
+    //if done: clear the read and return the buffer
+    if (status & CPU_STAT_RD_DONE){
+        *num_lines = (router_status->status >> 16) & 0xffff;
+        return ((uint32_t *) ROUTER_RAM_BASE);
+    }
+
+    //if error: drop the packet and start a new read
+    if (status & CPU_STAT_RD_EROR){
+        putstr("E");
+        pkt_ctrl_release_incoming_buffer();
+    }
+
+    //otherwise null for nothing ready
+    return NULL;
+}
+
+void pkt_ctrl_release_incoming_buffer(void){
+    //clear, wait for idle, and start a new read
+    router_ctrl->iface_ctrl = CPU_CTRL_RD_CLEAR;
+    cpu_stat_wait_for(CPU_STAT_RD_IDLE);
+    router_ctrl->iface_ctrl = CPU_CTRL_RD_START;
+}
+
+void *pkt_ctrl_claim_outgoing_buffer(void){
+    //wait for idle and return the buffer
+    cpu_stat_wait_for(CPU_STAT_WR_IDLE);
+    return ((uint32_t *) ROUTER_RAM_BASE);
+}
+
+void pkt_ctrl_commit_outgoing_buffer(size_t num_lines){
+    //start a new write with the given length
+    router_ctrl->iface_ctrl = ((num_lines & 0xffff) << 16) | CPU_CTRL_WR_START;
+    //wait for the write to become done
+    cpu_stat_wait_for(CPU_STAT_WR_DONE);
+    router_ctrl->iface_ctrl = CPU_CTRL_WR_CLEAR;
+}
diff --git a/firmware/zpu/lib/pkt_ctrl.h b/firmware/zpu/lib/pkt_ctrl.h
new file mode 100644
index 000000000..15e4b0c4d
--- /dev/null
+++ b/firmware/zpu/lib/pkt_ctrl.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2010-2011 Ettus Research LLC
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef INCLUDED_PKT_CTRL_H
+#define INCLUDED_PKT_CTRL_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <lwip/ip_addr.h>
+
+typedef enum {
+    PKT_CTRL_ROUTING_MODE_SLAVE = 0,
+    PKT_CTRL_ROUTING_MODE_MASTER = 1
+} pkt_ctrl_routing_mode_t;
+
+//! Program the decision values into the packet inspector
+void pkt_ctrl_program_inspector(
+    const struct ip_addr *ip_addr, uint16_t data_port
+);
+
+//! Set the routing mode for this device
+void pkt_ctrl_set_routing_mode(pkt_ctrl_routing_mode_t mode);
+
+/*!
+ * Try to claim an incomming buffer.
+ * \param num_lines filled with the buffer size
+ * \return a pointer to the buffer memory or NULL
+ */
+void *pkt_ctrl_claim_incoming_buffer(size_t *num_lines);
+
+/*!
+ * Release the incoming buffer. Call when done.
+ */
+void pkt_ctrl_release_incoming_buffer(void);
+
+/*!
+ * Claim an outgoing buffer.
+ * \return a pointer to the buffer
+ */
+void *pkt_ctrl_claim_outgoing_buffer(void);
+
+/*!
+ * Commit the outgoing buffer.
+ * \param num_lines how many lines written.
+ */
+void pkt_ctrl_commit_outgoing_buffer(size_t num_lines);
+
+#endif /* INCLUDED_PKT_CTRL_H */
diff --git a/firmware/microblaze/lib/print_mac_addr.c b/firmware/zpu/lib/print_addrs.c
index 475082325..fa2a49fc3 100644
--- a/firmware/microblaze/lib/print_mac_addr.c
+++ b/firmware/zpu/lib/print_addrs.c
@@ -18,11 +18,16 @@
 #include "nonstdio.h"
 
 void
-print_mac_addr(const unsigned char addr[6])
+print_mac_addr(const void *addr)
 {
+  uint8_t *p = (uint8_t *)addr;
   for(size_t i = 0; i < 6; i++){
     if(i) putchar(':');
-    puthex8(addr[i]);
+    puthex8(p[i]);
   }
 }
 
+void print_ip_addr(const void *addr){
+    uint8_t *p = (uint8_t *)addr;
+    printf("%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
+}
diff --git a/firmware/microblaze/lib/print_buffer.c b/firmware/zpu/lib/print_buffer.c
index 9f9104bb5..9f9104bb5 100644
--- a/firmware/microblaze/lib/print_buffer.c
+++ b/firmware/zpu/lib/print_buffer.c
diff --git a/firmware/microblaze/lib/print_rmon_regs.c b/firmware/zpu/lib/print_rmon_regs.c
index 6d9986909..6d9986909 100644
--- a/firmware/microblaze/lib/print_rmon_regs.c
+++ b/firmware/zpu/lib/print_rmon_regs.c
diff --git a/firmware/microblaze/lib/print_rmon_regs.h b/firmware/zpu/lib/print_rmon_regs.h
index 44e52da84..44e52da84 100644
--- a/firmware/microblaze/lib/print_rmon_regs.h
+++ b/firmware/zpu/lib/print_rmon_regs.h
diff --git a/firmware/microblaze/lib/printf.c b/firmware/zpu/lib/printf.c
index 45bd57cb9..45bd57cb9 100644
--- a/firmware/microblaze/lib/printf.c
+++ b/firmware/zpu/lib/printf.c
diff --git a/firmware/microblaze/lib/printf.c.smaller b/firmware/zpu/lib/printf.c.smaller
index 4d858648d..4d858648d 100644
--- a/firmware/microblaze/lib/printf.c.smaller
+++ b/firmware/zpu/lib/printf.c.smaller
diff --git a/firmware/microblaze/lib/spi.c b/firmware/zpu/lib/spi.c
index 2a41a1bfa..af0d8a68f 100644
--- a/firmware/microblaze/lib/spi.c
+++ b/firmware/zpu/lib/spi.c
@@ -20,9 +20,9 @@
 #include "pic.h"
 #include "nonstdio.h"
 
-void (*volatile spi_callback)(void); //SPI callback when xfer complete.
+//void (*volatile spi_callback)(void); //SPI callback when xfer complete.
 
-static void spi_irq_handler(unsigned irq);
+//static void spi_irq_handler(unsigned irq);
 
 void
 spi_init(void) 
@@ -66,6 +66,7 @@ spi_transact(bool readback, int slave, uint32_t data, int length, uint32_t flags
     return 0;
 }
 
+/*
 void spi_register_callback(void (*volatile callback)(void)) {
   spi_callback = callback;
 }
@@ -106,3 +107,4 @@ spi_async_transact(int slave, uint32_t data, int length, uint32_t flags, void (*
 
   return true;
 }
+*/
diff --git a/firmware/microblaze/lib/spi.h b/firmware/zpu/lib/spi.h
index 54618cedd..71245150a 100644
--- a/firmware/microblaze/lib/spi.h
+++ b/firmware/zpu/lib/spi.h
@@ -48,12 +48,12 @@ void spi_wait(void);
 uint32_t
 spi_transact(bool readback, int slave, uint32_t data, int length, uint32_t flags);
 
-uint32_t spi_get_data(void);
+//uint32_t spi_get_data(void);
 //static void spi_irq_handler(unsigned irq);
-void spi_register_callback(void (*volatile callback)(void));
+//void spi_register_callback(void (*volatile callback)(void));
 
-bool 
-spi_async_transact(int slave, uint32_t data, int length, uint32_t flags, void (*volatile callback)(void));
+//bool 
+//spi_async_transact(int slave, uint32_t data, int length, uint32_t flags, void (*volatile callback)(void));
 
 // ----------------------------------------------------------------
 // Routines that manipulate the FLASH SPI BUS
diff --git a/firmware/microblaze/lib/stdint.h b/firmware/zpu/lib/stdint.h
index b5a8611a9..b5a8611a9 100644
--- a/firmware/microblaze/lib/stdint.h
+++ b/firmware/zpu/lib/stdint.h
diff --git a/firmware/microblaze/lib/stdio.h b/firmware/zpu/lib/stdio.h
index 12a7ed0bb..12a7ed0bb 100644
--- a/firmware/microblaze/lib/stdio.h
+++ b/firmware/zpu/lib/stdio.h
diff --git a/firmware/microblaze/lib/u2_init.c b/firmware/zpu/lib/u2_init.c
index 4a553a713..db26be538 100644
--- a/firmware/microblaze/lib/u2_init.c
+++ b/firmware/zpu/lib/u2_init.c
@@ -20,24 +20,15 @@
 #include "spi.h"
 #include "pic.h"
 #include "hal_io.h"
-#include "buffer_pool.h"
 #include "hal_uart.h"
 #include "i2c.h"
-#include "i2c_async.h"
 #include "mdelay.h"
 #include "clocks.h"
 #include "usrp2/fw_common.h"
 #include "nonstdio.h"
-
-unsigned char u2_hw_rev_major;
-unsigned char u2_hw_rev_minor;
-
-static inline void
-get_hw_rev(void)
-{
-  bool ok = eeprom_read(USRP2_I2C_ADDR_MBOARD, USRP2_EE_MBOARD_REV, &u2_hw_rev_minor, 1);
-  ok &= eeprom_read(USRP2_I2C_ADDR_MBOARD, USRP2_EE_MBOARD_REV+1, &u2_hw_rev_major, 1);
-}
+#ifdef USRP2P
+#include "u2p_init.h"
+#endif
 
 /*
  * We ought to arrange for this to be called before main, but for now,
@@ -60,18 +51,24 @@ u2_init(void)
   // init i2c so we can read our rev
   pic_init();	// progammable interrupt controller
   i2c_init();
-  i2c_register_handler(); //for using async I2C
   hal_enable_ints();
 
-  bp_init();	// buffer pool
-  
-
+#ifdef USRP2P
+  u2p_init();
+#endif
 
   // flash all leds to let us know board is alive
-  hal_set_leds(0x0, 0x1f);
-  mdelay(100);
-  hal_set_leds(0x1f, 0x1f);
-  mdelay(100);
+  hal_set_led_src(0x0, 0x1f); /* software ctrl */
+  hal_set_leds(0x0, 0x1f);    mdelay(300);
+  hal_set_leds(LED_E, LED_E); mdelay(300);
+  hal_set_leds(LED_C, LED_C); mdelay(300);
+  hal_set_leds(LED_A, LED_A); mdelay(300);
+  for (int i = 0; i < 3; i++){ //blink all
+    static const int blinks = LED_E | LED_C | LED_A;
+    hal_set_leds(0x0,    0x1f); mdelay(100);
+    hal_set_leds(blinks, 0x1f); mdelay(100);
+  }
+  hal_set_led_src(0x1f & ~LED_D, 0x1f); /* hardware ctrl */
   hal_set_leds(LED_D, 0x1f);  // Leave one on
 
 #if 0
@@ -85,6 +82,8 @@ u2_init(void)
     printf("ad9510 reg[0x%x] = 0x%x\n", rr, vv);
   }
 #endif
-  
+
+  output_regs->serdes_ctrl = (SERDES_ENABLE | SERDES_RXEN);
+
   return true;
 }
diff --git a/firmware/microblaze/lib/u2_init.h b/firmware/zpu/lib/u2_init.h
index 848bd88de..848bd88de 100644
--- a/firmware/microblaze/lib/u2_init.h
+++ b/firmware/zpu/lib/u2_init.h
diff --git a/firmware/microblaze/lib/udp_fw_update.h b/firmware/zpu/lib/udp_fw_update.h
index d25525bd2..d25525bd2 100644
--- a/firmware/microblaze/lib/udp_fw_update.h
+++ b/firmware/zpu/lib/udp_fw_update.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/CHANGELOG b/firmware/zpu/lwip/lwip-1.3.1/CHANGELOG
index a45765010..a45765010 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/CHANGELOG
+++ b/firmware/zpu/lwip/lwip-1.3.1/CHANGELOG
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/COPYING b/firmware/zpu/lwip/lwip-1.3.1/COPYING
index e23898b5e..e23898b5e 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/COPYING
+++ b/firmware/zpu/lwip/lwip-1.3.1/COPYING
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/FILES b/firmware/zpu/lwip/lwip-1.3.1/FILES
index 66253196f..66253196f 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/FILES
+++ b/firmware/zpu/lwip/lwip-1.3.1/FILES
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/README b/firmware/zpu/lwip/lwip-1.3.1/README
index 8dda4b468..8dda4b468 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/README
+++ b/firmware/zpu/lwip/lwip-1.3.1/README
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/doc/FILES b/firmware/zpu/lwip/lwip-1.3.1/doc/FILES
index 05d356f4f..05d356f4f 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/doc/FILES
+++ b/firmware/zpu/lwip/lwip-1.3.1/doc/FILES
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/doc/contrib.txt b/firmware/zpu/lwip/lwip-1.3.1/doc/contrib.txt
index 39596fca3..39596fca3 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/doc/contrib.txt
+++ b/firmware/zpu/lwip/lwip-1.3.1/doc/contrib.txt
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/doc/rawapi.txt b/firmware/zpu/lwip/lwip-1.3.1/doc/rawapi.txt
index 8eec6e786..8eec6e786 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/doc/rawapi.txt
+++ b/firmware/zpu/lwip/lwip-1.3.1/doc/rawapi.txt
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/doc/savannah.txt b/firmware/zpu/lwip/lwip-1.3.1/doc/savannah.txt
index 409905b10..409905b10 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/doc/savannah.txt
+++ b/firmware/zpu/lwip/lwip-1.3.1/doc/savannah.txt
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/doc/snmp_agent.txt b/firmware/zpu/lwip/lwip-1.3.1/doc/snmp_agent.txt
index 9b58616a6..9b58616a6 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/doc/snmp_agent.txt
+++ b/firmware/zpu/lwip/lwip-1.3.1/doc/snmp_agent.txt
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/doc/sys_arch.txt b/firmware/zpu/lwip/lwip-1.3.1/doc/sys_arch.txt
index 66310a91e..66310a91e 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/doc/sys_arch.txt
+++ b/firmware/zpu/lwip/lwip-1.3.1/doc/sys_arch.txt
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/.hgignore b/firmware/zpu/lwip/lwip-1.3.1/src/.hgignore
index f88587df3..f88587df3 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/.hgignore
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/.hgignore
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/FILES b/firmware/zpu/lwip/lwip-1.3.1/src/FILES
index 952aeabb4..952aeabb4 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/FILES
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/FILES
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/api/api_lib.c b/firmware/zpu/lwip/lwip-1.3.1/src/api/api_lib.c
index 86df911ea..86df911ea 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/api/api_lib.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/api/api_lib.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/api/api_msg.c b/firmware/zpu/lwip/lwip-1.3.1/src/api/api_msg.c
index 28d101019..28d101019 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/api/api_msg.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/api/api_msg.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/api/err.c b/firmware/zpu/lwip/lwip-1.3.1/src/api/err.c
index a90cb98c8..a90cb98c8 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/api/err.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/api/err.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/api/netbuf.c b/firmware/zpu/lwip/lwip-1.3.1/src/api/netbuf.c
index af44eefc7..af44eefc7 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/api/netbuf.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/api/netbuf.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/api/netdb.c b/firmware/zpu/lwip/lwip-1.3.1/src/api/netdb.c
index 8aa237f4c..8aa237f4c 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/api/netdb.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/api/netdb.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/api/netifapi.c b/firmware/zpu/lwip/lwip-1.3.1/src/api/netifapi.c
index 491837378..491837378 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/api/netifapi.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/api/netifapi.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/api/sockets.c b/firmware/zpu/lwip/lwip-1.3.1/src/api/sockets.c
index f177261e1..f177261e1 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/api/sockets.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/api/sockets.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/api/tcpip.c b/firmware/zpu/lwip/lwip-1.3.1/src/api/tcpip.c
index 002df90b2..002df90b2 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/api/tcpip.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/api/tcpip.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/#tcp_out.c# b/firmware/zpu/lwip/lwip-1.3.1/src/core/#tcp_out.c#
index ca72d9dcc..ca72d9dcc 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/#tcp_out.c#
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/#tcp_out.c#
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/dhcp.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/dhcp.c
index df0f97881..df0f97881 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/dhcp.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/dhcp.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/dns.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/dns.c
index 62a2592e9..62a2592e9 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/dns.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/dns.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/init.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/init.c
index 277811a6a..277811a6a 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/init.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/init.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/autoip.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/autoip.c
index 367adb060..367adb060 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/autoip.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/autoip.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/icmp.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/icmp.c
index b97a587a7..b97a587a7 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/icmp.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/icmp.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/igmp.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/igmp.c
index 7c07bc465..7c07bc465 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/igmp.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/igmp.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/inet.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/inet.c
index 69baf1d50..69baf1d50 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/inet.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/inet.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/inet_chksum.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/inet_chksum.c
index 185881efd..185881efd 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/inet_chksum.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/inet_chksum.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/ip.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/ip.c
index 7e404a9f3..7e404a9f3 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/ip.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/ip.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/ip_addr.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/ip_addr.c
index 94bf4678a..94bf4678a 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/ip_addr.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/ip_addr.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/ip_frag.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/ip_frag.c
index 1939d831b..1939d831b 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv4/ip_frag.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv4/ip_frag.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv6/README b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv6/README
index 362000486..362000486 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv6/README
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv6/README
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv6/icmp6.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv6/icmp6.c
index 4fcc89551..4fcc89551 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv6/icmp6.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv6/icmp6.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv6/inet6.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv6/inet6.c
index c3de85c09..c3de85c09 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv6/inet6.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv6/inet6.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv6/ip6.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv6/ip6.c
index 7e4342001..7e4342001 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv6/ip6.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv6/ip6.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv6/ip6_addr.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv6/ip6_addr.c
index 2da6cea42..2da6cea42 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/ipv6/ip6_addr.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/ipv6/ip6_addr.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/mem.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/mem.c
index b5f13ab3b..b5f13ab3b 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/mem.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/mem.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/memp.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/memp.c
index dfc32213d..dfc32213d 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/memp.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/memp.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/netif.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/netif.c
index c9b6b9b5e..c9b6b9b5e 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/netif.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/netif.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/pbuf.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/pbuf.c
index 50b22c354..50b22c354 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/pbuf.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/pbuf.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/raw.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/raw.c
index 589950e75..589950e75 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/raw.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/raw.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/asn1_dec.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/asn1_dec.c
index 650fb4037..650fb4037 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/asn1_dec.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/asn1_dec.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/asn1_enc.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/asn1_enc.c
index 77af6b4ba..77af6b4ba 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/asn1_enc.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/asn1_enc.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/mib2.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/mib2.c
index 33eeee66c..33eeee66c 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/mib2.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/mib2.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/mib_structs.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/mib_structs.c
index af8994ed2..af8994ed2 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/mib_structs.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/mib_structs.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/msg_in.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/msg_in.c
index d0c3c7534..d0c3c7534 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/msg_in.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/msg_in.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/msg_out.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/msg_out.c
index b705aaca7..b705aaca7 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/snmp/msg_out.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/snmp/msg_out.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/stats.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/stats.c
index a036d83bb..a036d83bb 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/stats.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/stats.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/sys.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/sys.c
index d1fbda4e6..d1fbda4e6 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/sys.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/sys.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/tcp.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/tcp.c
index 0f3fd41c3..0f3fd41c3 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/tcp.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/tcp.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/tcp_in.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/tcp_in.c
index 362a4a62d..362a4a62d 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/tcp_in.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/tcp_in.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/tcp_out.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/tcp_out.c
index ca72d9dcc..ca72d9dcc 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/tcp_out.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/tcp_out.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/core/udp.c b/firmware/zpu/lwip/lwip-1.3.1/src/core/udp.c
index d8d644d44..d8d644d44 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/core/udp.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/core/udp.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/autoip.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/autoip.h
index 076a2ed23..076a2ed23 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/autoip.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/autoip.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/icmp.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/icmp.h
index ff838f43a..ff838f43a 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/icmp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/icmp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/igmp.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/igmp.h
index 59c933f35..59c933f35 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/igmp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/igmp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet.h
index 6f30d0d12..6f30d0d12 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet_chksum.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet_chksum.h
index 5cae59cbd..5cae59cbd 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet_chksum.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/inet_chksum.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip.h
index 14eba3ca5..14eba3ca5 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_addr.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_addr.h
index f2e4c2233..f2e4c2233 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_addr.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_addr.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_frag.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_frag.h
index 380e604dc..380e604dc 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_frag.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv4/lwip/ip_frag.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv6/lwip/icmp.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv6/lwip/icmp.h
index 87e9ffd96..87e9ffd96 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv6/lwip/icmp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv6/lwip/icmp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv6/lwip/inet.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv6/lwip/inet.h
index de1a0b636..de1a0b636 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv6/lwip/inet.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv6/lwip/inet.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip.h
index a01cfc65b..a01cfc65b 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip_addr.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip_addr.h
index b2d8ae566..b2d8ae566 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip_addr.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/ipv6/lwip/ip_addr.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/api.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/api.h
index f6b1f7434..f6b1f7434 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/api.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/api.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/api_msg.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/api_msg.h
index 4272d77cc..4272d77cc 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/api_msg.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/api_msg.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/arch.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/arch.h
index 3a5a0e4f2..3a5a0e4f2 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/arch.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/arch.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/debug.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/debug.h
index d5c4e4747..d5c4e4747 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/debug.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/debug.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/def.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/def.h
index d2ed251df..d2ed251df 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/def.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/def.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/dhcp.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/dhcp.h
index 825dba6ec..825dba6ec 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/dhcp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/dhcp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/dns.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/dns.h
index e5f4b7a3d..e5f4b7a3d 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/dns.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/dns.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/err.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/err.h
index 696764454..696764454 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/err.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/err.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/init.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/init.h
index a4dc0577f..a4dc0577f 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/init.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/init.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/mem.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/mem.h
index 327c2049f..327c2049f 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/mem.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/mem.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/memp.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/memp.h
index f0d073994..f0d073994 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/memp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/memp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/memp_std.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/memp_std.h
index 344690328..344690328 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/memp_std.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/memp_std.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/netbuf.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/netbuf.h
index 6d84dd073..6d84dd073 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/netbuf.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/netbuf.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/netdb.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/netdb.h
index 0f7b2ec04..0f7b2ec04 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/netdb.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/netdb.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/netif.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/netif.h
index a32503052..a32503052 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/netif.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/netif.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/netifapi.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/netifapi.h
index 36c6bd0a2..36c6bd0a2 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/netifapi.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/netifapi.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/opt.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/opt.h
index e8bd8b89e..e8bd8b89e 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/opt.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/opt.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/pbuf.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/pbuf.h
index 8380f65da..8380f65da 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/pbuf.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/pbuf.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/raw.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/raw.h
index 20b0a11bb..20b0a11bb 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/raw.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/raw.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/sio.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/sio.h
index 7d9162e49..7d9162e49 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/sio.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/sio.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/snmp.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/snmp.h
index dd03d5d70..dd03d5d70 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/snmp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/snmp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/snmp_asn1.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/snmp_asn1.h
index 8a602881f..8a602881f 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/snmp_asn1.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/snmp_asn1.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/snmp_msg.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/snmp_msg.h
index b2f69c4be..b2f69c4be 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/snmp_msg.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/snmp_msg.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/snmp_structs.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/snmp_structs.h
index 9f3f8a94e..9f3f8a94e 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/snmp_structs.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/snmp_structs.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/sockets.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/sockets.h
index 7b52e151c..7b52e151c 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/sockets.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/sockets.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/stats.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/stats.h
index aa179f5c0..aa179f5c0 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/stats.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/stats.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/sys.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/sys.h
index 0cc84ddf1..0cc84ddf1 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/sys.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/sys.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/tcp.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/tcp.h
index 8f6b9d3c1..8f6b9d3c1 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/tcp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/tcp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/tcpip.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/tcpip.h
index 75393ee91..75393ee91 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/tcpip.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/tcpip.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/udp.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/udp.h
index d7b2a3820..d7b2a3820 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/lwip/udp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/lwip/udp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/netif/etharp.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/netif/etharp.h
index db691d91d..db691d91d 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/netif/etharp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/netif/etharp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/netif/loopif.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/netif/loopif.h
index 304af4b39..304af4b39 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/netif/loopif.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/netif/loopif.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/netif/ppp_oe.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/netif/ppp_oe.h
index 3aa55aec7..3aa55aec7 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/netif/ppp_oe.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/netif/ppp_oe.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/include/netif/slipif.h b/firmware/zpu/lwip/lwip-1.3.1/src/include/netif/slipif.h
index aa08ada4a..aa08ada4a 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/include/netif/slipif.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/include/netif/slipif.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/FILES b/firmware/zpu/lwip/lwip-1.3.1/src/netif/FILES
index 1c4f5928d..1c4f5928d 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/FILES
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/FILES
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/etharp.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/etharp.c
index 73ea21173..73ea21173 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/etharp.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/etharp.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ethernetif.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ethernetif.c
index ccd7bd67f..ccd7bd67f 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ethernetif.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ethernetif.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/loopif.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/loopif.c
index 1e1f28cf1..1e1f28cf1 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/loopif.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/loopif.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/auth.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/auth.c
index 4c0ee6a8e..4c0ee6a8e 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/auth.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/auth.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/auth.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/auth.h
index 86ff04945..86ff04945 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/auth.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/auth.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/chap.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/chap.c
index 6d9c3c3ce..6d9c3c3ce 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/chap.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/chap.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/chap.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/chap.h
index 83dafd734..83dafd734 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/chap.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/chap.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/chpms.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/chpms.c
index 0c7521f20..0c7521f20 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/chpms.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/chpms.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/chpms.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/chpms.h
index df070fb35..df070fb35 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/chpms.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/chpms.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/fsm.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/fsm.c
index c073f1e36..c073f1e36 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/fsm.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/fsm.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/fsm.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/fsm.h
index 14034ec7f..14034ec7f 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/fsm.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/fsm.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/ipcp.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/ipcp.c
index 3a403a0a6..3a403a0a6 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/ipcp.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/ipcp.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/ipcp.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/ipcp.h
index dfcf4fba6..dfcf4fba6 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/ipcp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/ipcp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/lcp.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/lcp.c
index 85a0add95..85a0add95 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/lcp.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/lcp.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/lcp.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/lcp.h
index 1a5e5a4c0..1a5e5a4c0 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/lcp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/lcp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/magic.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/magic.c
index d3922bb56..d3922bb56 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/magic.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/magic.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/magic.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/magic.h
index bc5174993..bc5174993 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/magic.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/magic.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/md5.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/md5.c
index d65ecedbf..d65ecedbf 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/md5.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/md5.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/md5.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/md5.h
index e129533f3..e129533f3 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/md5.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/md5.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/pap.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/pap.c
index 7c3fd7e4c..7c3fd7e4c 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/pap.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/pap.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/pap.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/pap.h
index 0a09fc841..0a09fc841 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/pap.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/pap.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/ppp.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/ppp.c
index 8720c3368..8720c3368 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/ppp.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/ppp.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/ppp.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/ppp.h
index d5caa0a7e..d5caa0a7e 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/ppp.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/ppp.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/ppp_oe.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/ppp_oe.c
index c34c529b6..c34c529b6 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/ppp_oe.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/ppp_oe.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/pppdebug.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/pppdebug.h
index 6253863c9..6253863c9 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/pppdebug.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/pppdebug.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/randm.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/randm.c
index 0c622a0b0..0c622a0b0 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/randm.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/randm.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/randm.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/randm.h
index a0984b020..a0984b020 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/randm.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/randm.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/vj.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/vj.c
index 814ea72c5..814ea72c5 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/vj.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/vj.c
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/vj.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/vj.h
index b9617da4d..b9617da4d 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/vj.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/vj.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/vjbsdhdr.h b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/vjbsdhdr.h
index f46267614..f46267614 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/ppp/vjbsdhdr.h
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/ppp/vjbsdhdr.h
diff --git a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/slipif.c b/firmware/zpu/lwip/lwip-1.3.1/src/netif/slipif.c
index 6cb2db442..6cb2db442 100644
--- a/firmware/microblaze/lwip/lwip-1.3.1/src/netif/slipif.c
+++ b/firmware/zpu/lwip/lwip-1.3.1/src/netif/slipif.c
diff --git a/firmware/microblaze/lwip/lwipopts.h b/firmware/zpu/lwip/lwipopts.h
index 3839eea83..3839eea83 100644
--- a/firmware/microblaze/lwip/lwipopts.h
+++ b/firmware/zpu/lwip/lwipopts.h
diff --git a/firmware/microblaze/lwip/lwippools.h b/firmware/zpu/lwip/lwippools.h
index caee23c82..caee23c82 100644
--- a/firmware/microblaze/lwip/lwippools.h
+++ b/firmware/zpu/lwip/lwippools.h
diff --git a/firmware/microblaze/lwip_port/arch/cc.h b/firmware/zpu/lwip_port/arch/cc.h
index d8d53ecf8..d8d53ecf8 100644
--- a/firmware/microblaze/lwip_port/arch/cc.h
+++ b/firmware/zpu/lwip_port/arch/cc.h
diff --git a/firmware/microblaze/lwip_port/arch/perf.h b/firmware/zpu/lwip_port/arch/perf.h
index f0906d03f..f0906d03f 100644
--- a/firmware/microblaze/lwip_port/arch/perf.h
+++ b/firmware/zpu/lwip_port/arch/perf.h
diff --git a/firmware/microblaze/lwip_port/netif/eth_driver.c b/firmware/zpu/lwip_port/netif/eth_driver.c
index 18c6eaf3e..18c6eaf3e 100644
--- a/firmware/microblaze/lwip_port/netif/eth_driver.c
+++ b/firmware/zpu/lwip_port/netif/eth_driver.c
diff --git a/firmware/microblaze/lwip_port/netif/eth_driver.h b/firmware/zpu/lwip_port/netif/eth_driver.h
index 72a212091..72a212091 100644
--- a/firmware/microblaze/lwip_port/netif/eth_driver.h
+++ b/firmware/zpu/lwip_port/netif/eth_driver.h
diff --git a/firmware/zpu/usrp2/CMakeLists.txt b/firmware/zpu/usrp2/CMakeLists.txt
new file mode 100644
index 000000000..e54499084
--- /dev/null
+++ b/firmware/zpu/usrp2/CMakeLists.txt
@@ -0,0 +1,37 @@
+#
+# Copyright 2010-2011 Ettus Research LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+########################################################################
+INCLUDE(${CMAKE_SOURCE_DIR}/lib/CMakeLists.txt)
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
+
+ADD_LIBRARY(libusrp2fw STATIC
+    ${COMMON_SRCS}
+    sd.c
+    ethernet.c
+)
+
+########################################################################
+SET(GEN_OUTPUTS_BIN_SIZE 0x3fff)
+
+ADD_EXECUTABLE(usrp2_txrx_uhd.elf ${CMAKE_SOURCE_DIR}/apps/txrx_uhd.c)
+TARGET_LINK_LIBRARIES(usrp2_txrx_uhd.elf libusrp2fw)
+GEN_OUTPUTS(usrp2_txrx_uhd.elf)
+
+ADD_EXECUTABLE(usrp2_blinkenlights.elf ${CMAKE_SOURCE_DIR}/apps/blinkenlights.c)
+TARGET_LINK_LIBRARIES(usrp2_blinkenlights.elf libusrp2fw)
+GEN_OUTPUTS(usrp2_blinkenlights.elf)
diff --git a/firmware/microblaze/usrp2/eth_phy.h b/firmware/zpu/usrp2/eth_phy.h
index 6c16f97b7..6c16f97b7 100644
--- a/firmware/microblaze/usrp2/eth_phy.h
+++ b/firmware/zpu/usrp2/eth_phy.h
diff --git a/firmware/microblaze/usrp2/ethernet.c b/firmware/zpu/usrp2/ethernet.c
index 5d4654bda..5d4654bda 100644
--- a/firmware/microblaze/usrp2/ethernet.c
+++ b/firmware/zpu/usrp2/ethernet.c
diff --git a/firmware/microblaze/usrp2/memory_map.h b/firmware/zpu/usrp2/memory_map.h
index eac0c217f..e728a1ddb 100644
--- a/firmware/microblaze/usrp2/memory_map.h
+++ b/firmware/zpu/usrp2/memory_map.h
@@ -18,7 +18,7 @@
 
 /* Overall Memory Map
  *   0000-7FFF  32K   RAM space (16K on 1500, 24K on 2000, 32K on DSP)
- *   8000-BFFF  16K   Buffer Pool
+ *   8000-BFFF  16K   Packet Router
  *   C000-FFFF  16K   Peripherals
  */
 
@@ -45,23 +45,13 @@
 #define RAM_BASE 0x0000
 
 ////////////////////////////////////////////////////////////////
-// Buffer Pool RAM, Slave 1
+// Packet Router RAM, Slave 1
 //
-// The buffers themselves are located in Slave 1, Buffer Pool RAM.
-// The status registers are in Slave 5, Buffer Pool Status.
+// The buffers themselves are located in Slave 1, Packet Router RAM.
+// The status registers are in Slave 5, Packet Router Status.
 // The control register is in Slave 7, Settings Bus.
 
-#define BUFFER_POOL_RAM_BASE 0x8000
-
-#define	NBUFFERS                8
-#define BP_NLINES	   0x0200	// number of 32-bit lines in a buffer
-#define BP_LAST_LINE	(BP_NLINES - 1)	// last line in a buffer
-
-#define buffer_pool_ram \
-  ((uint32_t *) BUFFER_POOL_RAM_BASE)
-
-#define buffer_ram(n) (&buffer_pool_ram[(n) * BP_NLINES])
-
+#define ROUTER_RAM_BASE 0x8000
 
 /////////////////////////////////////////////////////
 // SPI Core, Slave 2.  See core docs for more info
@@ -164,93 +154,25 @@ typedef struct {
 #define gpio_base ((gpio_regs_t *) GPIO_BASE)
 
 ///////////////////////////////////////////////////
-// Buffer Pool Status, Slave 5
+// Packet Router Status, Slave 5
 //
-// The buffers themselves are located in Slave 1, Buffer Pool RAM.
-// The status registers are in Slave 5, Buffer Pool Status.
+// The buffers themselves are located in Slave 1, Packet Router RAM.
+// The status registers are in Slave 5, Packet Router Status.
 // The control register is in Slave 7, Settings Bus.
 
-#define BUFFER_POOL_STATUS_BASE 0xCC00
+#define ROUTER_STATUS_BASE 0xCC00
 
 typedef struct {
-  volatile uint32_t last_line[NBUFFERS]; // last line xfer'd in buffer
-  volatile uint32_t status;	         // error and done flags
+  volatile uint32_t _padding[8];
+  volatile uint32_t status;
   volatile uint32_t hw_config;	         // see below
-  volatile uint32_t dummy[3];
+  volatile uint32_t time64_secs_rb;
+  volatile uint32_t time64_ticks_rb;
+  volatile uint32_t compat_num;
   volatile uint32_t irqs;
-  volatile uint32_t pri_enc_bp_status;
-  volatile uint32_t cycle_count;
-} buffer_pool_status_t;
-
-#define buffer_pool_status ((buffer_pool_status_t *) BUFFER_POOL_STATUS_BASE)
-
-/*
- * Buffer n's xfer is done.
- * Clear this bit by issuing bp_clear_buf(n)
- */
-#define BPS_DONE(n)     (0x00000001 << (n))
-#define BPS_DONE_0	BPS_DONE(0)
-#define BPS_DONE_1	BPS_DONE(1)
-#define BPS_DONE_2	BPS_DONE(2)
-#define BPS_DONE_3	BPS_DONE(3)
-#define BPS_DONE_4	BPS_DONE(4)
-#define BPS_DONE_5	BPS_DONE(5)
-#define BPS_DONE_6	BPS_DONE(6)
-#define BPS_DONE_7	BPS_DONE(7)
-
-/*
- * Buffer n's xfer had an error.
- * Clear this bit by issuing bp_clear_buf(n)
- */
-#define BPS_ERROR(n)	(0x00000100 << (n))
-#define BPS_ERROR_0	BPS_ERROR(0)
-#define BPS_ERROR_1	BPS_ERROR(1)
-#define BPS_ERROR_2	BPS_ERROR(2)
-#define BPS_ERROR_3	BPS_ERROR(3)
-#define BPS_ERROR_4	BPS_ERROR(4)
-#define BPS_ERROR_5	BPS_ERROR(5)
-#define BPS_ERROR_6	BPS_ERROR(6)
-#define BPS_ERROR_7	BPS_ERROR(7)
-
-/*
- * Buffer n is idle.  A buffer is idle if it's not
- * DONE, ERROR, or processing a transaction.  If it's
- * IDLE, it's safe to start a new transaction.
- *
- * Clear this bit by starting a xfer with
- * bp_send_from_buf or bp_receive_to_buf.
- */
-#define BPS_IDLE(n)     (0x00010000 << (n))
-#define BPS_IDLE_0	BPS_IDLE(0)
-#define BPS_IDLE_1	BPS_IDLE(1)
-#define BPS_IDLE_2	BPS_IDLE(2)
-#define BPS_IDLE_3	BPS_IDLE(3)
-#define BPS_IDLE_4	BPS_IDLE(4)
-#define BPS_IDLE_5	BPS_IDLE(5)
-#define BPS_IDLE_6	BPS_IDLE(6)
-#define BPS_IDLE_7	BPS_IDLE(7)
+} router_status_t;
 
-/*
- * Buffer n has a "slow path" packet in it.
- * This bit is orthogonal to the bits above and indicates that
- * the FPGA ethernet rx protocol engine has identified this packet
- * as one requiring firmware intervention.
- */
-#define BPS_SLOWPATH(n) (0x01000000 << (n))
-#define BPS_SLOWPATH_0	BPS_SLOWPATH(0)
-#define BPS_SLOWPATH_1	BPS_SLOWPATH(1)
-#define BPS_SLOWPATH_2	BPS_SLOWPATH(2)
-#define BPS_SLOWPATH_3	BPS_SLOWPATH(3)
-#define BPS_SLOWPATH_4	BPS_SLOWPATH(4)
-#define BPS_SLOWPATH_5	BPS_SLOWPATH(5)
-#define BPS_SLOWPATH_6	BPS_SLOWPATH(6)
-#define BPS_SLOWPATH_7	BPS_SLOWPATH(7)
-
-
-#define BPS_DONE_ALL	  0x000000ff	// mask of all dones
-#define BPS_ERROR_ALL	  0x0000ff00	// mask of all errors
-#define BPS_IDLE_ALL      0x00ff0000	// mask of all idles
-#define BPS_SLOWPATH_ALL  0xff000000	// mask of all slowpaths
+#define router_status ((router_status_t *) ROUTER_STATUS_BASE)
 
 // The hw_config register
 
@@ -263,7 +185,7 @@ typedef struct {
 inline static int
 hwconfig_simulation_p(void)
 {
-  return buffer_pool_status->hw_config & HWC_SIMULATION;
+  return router_status->hw_config & HWC_SIMULATION;
 }
 
 /*!
@@ -273,7 +195,7 @@ hwconfig_simulation_p(void)
 inline static int
 hwconfig_wishbone_divisor(void)
 {
-  return buffer_pool_status->hw_config & HWC_WB_CLK_DIV_MASK;
+  return router_status->hw_config & HWC_WB_CLK_DIV_MASK;
 }
 
 ///////////////////////////////////////////////////
@@ -295,13 +217,13 @@ hwconfig_wishbone_divisor(void)
 #define MISC_OUTPUT_BASE        0xD400
 #define	TX_PROTOCOL_ENGINE_BASE 0xD480
 #define	RX_PROTOCOL_ENGINE_BASE 0xD4C0
-#define BUFFER_POOL_CTRL_BASE   0xD500
+#define ROUTER_CTRL_BASE   0xD500
 #define LAST_SETTING_REG        0xD7FC	// last valid setting register
 
 #define SR_MISC 0
 #define SR_TX_PROT_ENG 32
 #define SR_RX_PROT_ENG 48
-#define SR_BUFFER_POOL_CTRL 64
+#define SR_ROUTER_CTRL 64
 #define SR_UDP_SM 96
 #define SR_TX_DSP 208
 #define SR_TX_CTRL 224
@@ -313,53 +235,16 @@ hwconfig_wishbone_divisor(void)
 
 #define	_SR_ADDR(sr)	(MISC_OUTPUT_BASE + (sr) * sizeof(uint32_t))
 
-// --- buffer pool control regs ---
+// --- packet router control regs ---
 
 typedef struct {
-  volatile uint32_t ctrl;
-} buffer_pool_ctrl_t;
-
-// buffer pool ports
-
-#define	PORT_SERDES	0	// serial/deserializer
-#define	PORT_DSP	1	// DSP tx or rx pipeline
-#define	PORT_ETH	2	// ethernet tx or rx
-#define	PORT_RAM	3	// RAM tx or rx
-
-// the buffer pool ctrl register fields
-
-#define BPC_BUFFER(n) (((n) & 0xf) << 28)
-#define   BPC_BUFFER_MASK      BPC_BUFFER(~0)
-#define   BPC_BUFFER_0	       BPC_BUFFER(0)
-#define   BPC_BUFFER_1	       BPC_BUFFER(1)
-#define   BPC_BUFFER_2	       BPC_BUFFER(2)
-#define   BPC_BUFFER_3	       BPC_BUFFER(3)
-#define   BPC_BUFFER_4	       BPC_BUFFER(4)
-#define   BPC_BUFFER_5	       BPC_BUFFER(5)
-#define   BPC_BUFFER_6	       BPC_BUFFER(6)
-#define   BPC_BUFFER_7	       BPC_BUFFER(7)
-#define	  BPC_BUFFER_NIL       BPC_BUFFER(0x8)	// disable
-
-#define BPC_PORT(n) (((n) & 0x7) << 25)
-#define   BPC_PORT_MASK        BPC_PORT(~0)
-#define   BPC_PORT_SERDES      BPC_PORT(PORT_SERDES)
-#define   BPC_PORT_DSP	       BPC_PORT(PORT_DSP)
-#define   BPC_PORT_ETH         BPC_PORT(PORT_ETH)
-#define   BPC_PORT_RAM         BPC_PORT(PORT_RAM)
-#define   BPC_PORT_NIL	       BPC_PORT(0x4)   	// disable
-
-#define	BPC_CLR	       	       (1 << 24)  // mutually excl commands
-#define	BPC_READ	       (1 << 23)
-#define BPC_WRITE              (1 << 22)
-
-#define BPC_STEP(step) (((step) & 0xf) << 18)
-#define   BPC_STEP_MASK	       BPC_STEP(~0)
-#define BPC_LAST_LINE(line) (((line) & 0x1ff) << 9)
-#define   BPC_LAST_LINE_MASK   BPC_LAST_LINE(~0)
-#define BPC_FIRST_LINE(line) (((line) & 0x1ff) << 0)
-#define   BPC_FIRST_LINE_MASK  BPC_FIRST_LINE(~0)
-
-#define buffer_pool_ctrl ((buffer_pool_ctrl_t *) BUFFER_POOL_CTRL_BASE)
+  volatile uint32_t mode_ctrl;
+  volatile uint32_t ip_addr;
+  volatile uint32_t data_ports; //dsp0 (low 16) dsp1 (high 16)
+  volatile uint32_t iface_ctrl;
+} router_ctrl_t;
+
+#define router_ctrl ((router_ctrl_t *) ROUTER_CTRL_BASE)
 
 // --- misc outputs ---
 
@@ -435,11 +320,21 @@ typedef struct {
     uint32_t length;
     uint32_t checksum; //word 22
   } udp_hdr;
-  volatile uint32_t _pad[32-23];
+  volatile uint32_t _pad[1];
+  volatile uint32_t dsp0_port;
+  volatile uint32_t err0_port;
+  volatile uint32_t dsp1_port;
+  volatile uint32_t err1_port;
 } sr_udp_sm_t;
 
 // control bits (all expect UDP_SM_LAST_WORD are mutually exclusive)
 
+// Insert a UDP source port from the table
+#define UDP_SM_INS_UDP_SRC_PORT     (1 << 21)
+
+// Insert a UDP dest port from the table
+#define UDP_SM_INS_UDP_DST_PORT     (1 << 20)
+
 // This is the last word of the header
 #define	UDP_SM_LAST_WORD		(1 << 19)
 
diff --git a/firmware/microblaze/usrp2/sd.c b/firmware/zpu/usrp2/sd.c
index d000b28ae..d634baea8 100644
--- a/firmware/microblaze/usrp2/sd.c
+++ b/firmware/zpu/usrp2/sd.c
@@ -1,6 +1,6 @@
 /* -*- c -*- */
 /*
- * Copyright 2008 Ettus Research LLC
+ * Copyright 2008-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/usrp2/sd.h b/firmware/zpu/usrp2/sd.h
index e2d0ae38e..e4b4aae8b 100644
--- a/firmware/microblaze/usrp2/sd.h
+++ b/firmware/zpu/usrp2/sd.h
@@ -1,6 +1,6 @@
 /* -*- c -*- */
 /*
- * Copyright 2008 Ettus Research LLC
+ * Copyright 2008-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/zpu/usrp2p/CMakeLists.txt b/firmware/zpu/usrp2p/CMakeLists.txt
new file mode 100644
index 000000000..c7ab9abdb
--- /dev/null
+++ b/firmware/zpu/usrp2p/CMakeLists.txt
@@ -0,0 +1,51 @@
+#
+# Copyright 2010-2011 Ettus Research LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+########################################################################
+INCLUDE(${CMAKE_SOURCE_DIR}/lib/CMakeLists.txt)
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
+
+ADD_DEFINITIONS(-DUSRP2P)
+
+ADD_LIBRARY(libusrp2pfw STATIC
+    ${COMMON_SRCS}
+    spif.c
+    spi_flash.c
+    spi_flash_read.c
+    bootloader_utils.c
+    ethernet.c
+    xilinx_s3_icap.c
+    udp_fw_update.c
+    u2p_init.c
+)
+
+ADD_SUBDIRECTORY(bootloader)
+
+########################################################################
+SET(GEN_OUTPUTS_BIN_SIZE 0x3fff)
+
+ADD_EXECUTABLE(usrp2p_txrx_uhd.elf ${CMAKE_SOURCE_DIR}/apps/txrx_uhd.c)
+TARGET_LINK_LIBRARIES(usrp2p_txrx_uhd.elf libusrp2pfw)
+GEN_OUTPUTS(usrp2p_txrx_uhd.elf)
+
+ADD_EXECUTABLE(usrp2p_blinkenlights.elf ${CMAKE_SOURCE_DIR}/apps/blinkenlights.c)
+TARGET_LINK_LIBRARIES(usrp2p_blinkenlights.elf libusrp2pfw)
+GEN_OUTPUTS(usrp2p_blinkenlights.elf)
+
+ADD_EXECUTABLE(usrp2p_uart_flash_loader.elf ${CMAKE_SOURCE_DIR}/apps/uart_flash_loader.c)
+TARGET_LINK_LIBRARIES(usrp2p_uart_flash_loader.elf libusrp2pfw)
+GEN_OUTPUTS(usrp2p_uart_flash_loader.elf)
diff --git a/firmware/microblaze/usrp2p/bootconfig.h b/firmware/zpu/usrp2p/bootconfig.h
index 35c2726ed..b64834d22 100644
--- a/firmware/microblaze/usrp2p/bootconfig.h
+++ b/firmware/zpu/usrp2p/bootconfig.h
@@ -1,6 +1,6 @@
 /* -*- c -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  * 
  * This file is part of GNU Radio
  * 
diff --git a/firmware/zpu/usrp2p/bootloader/CMakeLists.txt b/firmware/zpu/usrp2p/bootloader/CMakeLists.txt
new file mode 100644
index 000000000..2c7efb43a
--- /dev/null
+++ b/firmware/zpu/usrp2p/bootloader/CMakeLists.txt
@@ -0,0 +1,40 @@
+#
+# Copyright 2010-2011 Ettus Research LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+########################################################################
+INCLUDE(FindPythonInterp)
+
+MACRO(GEN_RMI target)
+    GET_FILENAME_COMPONENT(name ${target} NAME_WE)
+    #command to create a rmi from elf
+    ADD_CUSTOM_COMMAND(
+        OUTPUT ${name}.rmi DEPENDS ${name}.bin
+        COMMAND ${PYTHON_EXECUTABLE}
+        ${CMAKE_SOURCE_DIR}/bin/bin_to_ram_macro_init.py ${name}.bin ${name}.rmi
+    )
+    #add a top level target for output files
+    ADD_CUSTOM_TARGET(
+        ${name}_rmi ALL DEPENDS ${name}.rmi
+    )
+ENDMACRO(GEN_RMI)
+
+########################################################################
+ADD_EXECUTABLE(init_bootloader.elf init_bootloader.c)
+TARGET_LINK_LIBRARIES(init_bootloader.elf libusrp2pfw)
+SET(GEN_OUTPUTS_BIN_SIZE 0x1fff)
+GEN_OUTPUTS(init_bootloader.elf)
+GEN_RMI(init_bootloader.bin)
diff --git a/firmware/microblaze/usrp2p/bootloader/fpga_bootloader.c b/firmware/zpu/usrp2p/bootloader/fpga_bootloader.c
index 9feff6ecd..f5a71a8bb 100644
--- a/firmware/microblaze/usrp2p/bootloader/fpga_bootloader.c
+++ b/firmware/zpu/usrp2p/bootloader/fpga_bootloader.c
@@ -1,6 +1,6 @@
 /* -*- c -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/usrp2p/bootloader/fw_bootloader.c b/firmware/zpu/usrp2p/bootloader/fw_bootloader.c
index a2c32bf8e..de561cf22 100644
--- a/firmware/microblaze/usrp2p/bootloader/fw_bootloader.c
+++ b/firmware/zpu/usrp2p/bootloader/fw_bootloader.c
@@ -1,6 +1,6 @@
 /* -*- c -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/usrp2p/bootloader/icap_test.c b/firmware/zpu/usrp2p/bootloader/icap_test.c
index 5feb9d014..5feb9d014 100644
--- a/firmware/microblaze/usrp2p/bootloader/icap_test.c
+++ b/firmware/zpu/usrp2p/bootloader/icap_test.c
diff --git a/firmware/microblaze/usrp2p/bootloader/init_bootloader.c b/firmware/zpu/usrp2p/bootloader/init_bootloader.c
index 1d9d681d7..f8b432c46 100644
--- a/firmware/microblaze/usrp2p/bootloader/init_bootloader.c
+++ b/firmware/zpu/usrp2p/bootloader/init_bootloader.c
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2010 Ettus Research LLC
+ * Copyright 2010-2011 Ettus Research LLC
  *
  */
 
@@ -11,6 +11,7 @@
 #include <spi_flash.h>
 #include <spi_flash_private.h>
 //#include <clocks.h>
+#include <mdelay.h>
 #include <ihex.h>
 #include <bootloader_utils.h>
 #include <string.h>
@@ -18,7 +19,7 @@
 #include <i2c.h>
 #include "usrp2/fw_common.h"
 
-void pic_interrupt_handler() __attribute__ ((interrupt_handler));
+//void pic_interrupt_handler() __attribute__ ((interrupt_handler));
 
 void pic_interrupt_handler()
 {
@@ -42,26 +43,22 @@ void load_ihex(void) { //simple IHEX parser to load proper records into RAM. loa
 			} else if(ihex_record.type == 1) { //end of record
 				puts("OK");
 				//load main firmware
-				start_program(RAM_BASE);
+				start_program();
 				puts("ERROR: main image returned! Back in IHEX load mode.");
 			} else puts("NOK"); //RAM loads do not support extended segment address records (04) -- upper 16 bits are always "0".
 		} else puts("NOK");
 	}
 }
 
-void delay(uint32_t t) {
-	while(t-- != 0) asm("NOP");
-}
-
 int main(int argc, char *argv[]) {
-  hal_disable_ints();	// In case we got here via jmp 0x0
+	hal_disable_ints();	// In case we got here via jmp 0x0
 	output_regs->leds = 0xFF;
-	delay(500000);
+	mdelay(100);
 	output_regs->leds = 0x00;
 	hal_uart_init();
 	spif_init();
 	i2c_init(); //for EEPROM
-	puts("USRP2+ bootloader\n");
+	puts("USRP2+ bootloader super ultra ZPU edition\n");
 	
 	bool production_image = find_safe_booted_flag();
 	set_safe_booted_flag(0); //haven't booted yet
@@ -71,7 +68,7 @@ int main(int argc, char *argv[]) {
 		if(is_valid_fw_image(SAFE_FW_IMAGE_LOCATION_ADDR)) {
 				set_safe_booted_flag(1); //let the firmware know it's the safe image
 				spi_flash_read(SAFE_FW_IMAGE_LOCATION_ADDR, FW_IMAGE_SIZE_BYTES, (void *)RAM_BASE);
-				start_program(RAM_BASE);
+				start_program();
 				puts("ERROR: return from main program! This should never happen!");
 				icap_reload_fpga(SAFE_FPGA_IMAGE_LOCATION_ADDR);
 			} else {
@@ -85,7 +82,7 @@ int main(int argc, char *argv[]) {
 		if(is_valid_fpga_image(PROD_FPGA_IMAGE_LOCATION_ADDR)) {
 			puts("Valid production FPGA image found. Attempting to boot.");
 			set_safe_booted_flag(1);
-			delay(30000); //so serial output can finish
+			mdelay(300); //so serial output can finish
 			icap_reload_fpga(PROD_FPGA_IMAGE_LOCATION_ADDR);
 		}
 		puts("No valid production FPGA image found.\nAttempting to load production firmware...");
@@ -93,17 +90,23 @@ int main(int argc, char *argv[]) {
 	if(is_valid_fw_image(PROD_FW_IMAGE_LOCATION_ADDR)) {
 		puts("Valid production firmware found. Loading...");
 		spi_flash_read(PROD_FW_IMAGE_LOCATION_ADDR, FW_IMAGE_SIZE_BYTES, (void *)RAM_BASE);
-		start_program(RAM_BASE);
+		puts("Finished loading. Starting image.");
+		mdelay(300);
+		start_program();
 		puts("ERROR: Return from main program! This should never happen!");
 		//if this happens, though, the safest thing to do is reboot the whole FPGA and start over.
+		mdelay(300);
 		icap_reload_fpga(SAFE_FPGA_IMAGE_LOCATION_ADDR);
 		return 1;
 	}
 	puts("No valid production firmware found. Trying safe firmware...");
 	if(is_valid_fw_image(SAFE_FW_IMAGE_LOCATION_ADDR)) {
 		spi_flash_read(SAFE_FW_IMAGE_LOCATION_ADDR, FW_IMAGE_SIZE_BYTES, (void *)RAM_BASE);
-		start_program(RAM_BASE);
+		puts("Finished loading. Starting image.");
+		mdelay(300);
+		start_program();
 		puts("ERROR: return from main program! This should never happen!");
+		mdelay(300);
 		icap_reload_fpga(SAFE_FPGA_IMAGE_LOCATION_ADDR);
 		return 1;
 	}
diff --git a/firmware/microblaze/usrp2p/bootloader/serial_loader_burner.c b/firmware/zpu/usrp2p/bootloader/serial_loader_burner.c
index 4ac4df454..6d5d135ab 100644
--- a/firmware/microblaze/usrp2p/bootloader/serial_loader_burner.c
+++ b/firmware/zpu/usrp2p/bootloader/serial_loader_burner.c
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/usrp2p/bootloader/spi_bootloader.c b/firmware/zpu/usrp2p/bootloader/spi_bootloader.c
index 678e66cf7..3e66d41cb 100644
--- a/firmware/microblaze/usrp2p/bootloader/spi_bootloader.c
+++ b/firmware/zpu/usrp2p/bootloader/spi_bootloader.c
@@ -1,6 +1,6 @@
 /* -*- c -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/usrp2p/bootloader/u2p2-rom.ld b/firmware/zpu/usrp2p/bootloader/u2p2-rom.ld
index 4c9eaa8e5..4c9eaa8e5 100644
--- a/firmware/microblaze/usrp2p/bootloader/u2p2-rom.ld
+++ b/firmware/zpu/usrp2p/bootloader/u2p2-rom.ld
diff --git a/firmware/zpu/usrp2p/bootloader_utils.c b/firmware/zpu/usrp2p/bootloader_utils.c
new file mode 100644
index 000000000..371c518a7
--- /dev/null
+++ b/firmware/zpu/usrp2p/bootloader_utils.c
@@ -0,0 +1,48 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2010 Ettus Research LLC
+ *
+ */
+
+//contains routines for loading programs from Flash. depends on Flash libraries.
+//also contains routines for reading / writing EEPROM flags for the bootloader
+#include <stdbool.h>
+#include <string.h>
+#include <bootloader_utils.h>
+#include <spi_flash.h>
+#include <memory_map.h>
+#include <nonstdio.h>
+
+int is_valid_fpga_image(uint32_t addr) {
+//	printf("is_valid_fpga_image(): starting with addr=%x...\n", addr);
+	uint8_t imgbuf[64];
+	spi_flash_read(addr, 64, imgbuf);
+	//we're just looking for leading 0xFF padding, followed by the sync bytes 0xAA 0x99
+	for(size_t i = 0; i<63; i++) {
+		if(imgbuf[i] == 0xFF) continue;
+		if(imgbuf[i] == 0xAA && imgbuf[i+1] == 0x99) {
+			//printf("is_valid_fpga_image(): found valid FPGA image\n");
+			return 1;
+		}
+	}
+	
+	return 0;
+}
+
+int is_valid_fw_image(uint32_t addr) {
+	static const uint8_t fwheader[] = {0x0b, 0x0b, 0x0b, 0x0b}; //just lookin for a jump to anywhere located at the reset vector
+	//printf("is_valid_fw_image(): starting with addr=%x...\n", addr);
+	uint8_t buf[12];
+	spi_flash_read(addr, 4, buf);
+	//printf("is_valid_fw_image(): read ");
+	//for(int i = 0; i < 5; i++) printf("%x ", buf[i]);
+	//printf("\n");
+	return memcmp(buf, fwheader, 4) == 0;
+}
+
+void start_program(void)
+{
+	//ignoring the addr now
+	//all this does is tap that register
+	*((volatile uint32_t *) SR_ADDR_BLDRDONE) = 1;
+}
diff --git a/firmware/microblaze/usrp2p/bootloader_utils.h b/firmware/zpu/usrp2p/bootloader_utils.h
index f597c0113..0f49ae6cd 100644
--- a/firmware/microblaze/usrp2p/bootloader_utils.h
+++ b/firmware/zpu/usrp2p/bootloader_utils.h
@@ -9,8 +9,8 @@
 //we're working in bytes and byte addresses so we can run the same code with Flash chips of different sector sizes.
 //it's really 1463736, but rounded up to 1.5MB
 #define FPGA_IMAGE_SIZE_BYTES 1572864
-//instead of 32K, we write 31K because we're using the top 1K for stack space!
-#define FW_IMAGE_SIZE_BYTES 31744
+//16K
+#define FW_IMAGE_SIZE_BYTES 0x3fff
 
 #define SAFE_FPGA_IMAGE_LOCATION_ADDR 0x00000000
 #define SAFE_FW_IMAGE_LOCATION_ADDR 0x003F0000
@@ -19,4 +19,4 @@
 
 int is_valid_fpga_image(uint32_t addr);
 int is_valid_fw_image(uint32_t addr);
-void start_program(uint32_t addr);
+void start_program(void);
diff --git a/firmware/microblaze/usrp2p/eth_phy.h b/firmware/zpu/usrp2p/eth_phy.h
index d233e96e8..d233e96e8 100644
--- a/firmware/microblaze/usrp2p/eth_phy.h
+++ b/firmware/zpu/usrp2p/eth_phy.h
diff --git a/firmware/microblaze/usrp2p/ethernet.c b/firmware/zpu/usrp2p/ethernet.c
index 36d6a17ca..03891f959 100644
--- a/firmware/microblaze/usrp2p/ethernet.c
+++ b/firmware/zpu/usrp2p/ethernet.c
@@ -279,101 +279,6 @@ ethernet_init(void)
   eth_mac_miim_write(PHY_CTRL, t | MII_CR_RESTART_AUTO_NEG);
 }
 
-static bool 
-unprogrammed(const void *t, size_t len)
-{
-  int i;
-  uint8_t *p = (uint8_t *)t;
-  bool all_zeros = true;
-  bool all_ones =  true;
-  for (i = 0; i < len; i++){
-    all_zeros &= p[i] == 0x00;
-    all_ones  &= p[i] == 0xff;
-  }
-  return all_ones | all_zeros;
-}
-
-//////////////////// MAC Addr Stuff ///////////////////////
-/*
-static int8_t src_mac_addr_initialized = false;
-static eth_mac_addr_t src_mac_addr = {{
-    0x00, 0x50, 0xC2, 0x85, 0x3f, 0xff
-  }};
-
-const eth_mac_addr_t *
-ethernet_mac_addr(void)
-{
-  if (!src_mac_addr_initialized){    // fetch from eeprom
-    src_mac_addr_initialized = true;
-
-    // if we're simulating, don't read the EEPROM model, it's REALLY slow
-    if (hwconfig_simulation_p())
-      return &src_mac_addr;
-    
-    eth_mac_addr_t tmp;
-    bool ok = eeprom_read(USRP2_I2C_ADDR_MBOARD, USRP2_EE_MBOARD_MAC_ADDR, &tmp, sizeof(tmp));
-    if (!ok || unprogrammed(&tmp, sizeof(tmp))){
-      // use the default
-    }
-    else
-      src_mac_addr = tmp;
-  }
-
-  return &src_mac_addr;
-}
-
-bool
-ethernet_set_mac_addr(const eth_mac_addr_t *t)
-{
-  bool ok = eeprom_write(USRP2_I2C_ADDR_MBOARD, USRP2_EE_MBOARD_MAC_ADDR, t, sizeof(eth_mac_addr_t));
-  if (ok){
-    src_mac_addr = *t;
-    src_mac_addr_initialized = true;
-    //eth_mac_set_addr(t); //this breaks the link
-  }
-
-  return ok;
-}
-
-//////////////////// IP Addr Stuff ///////////////////////
-
-static int8_t src_ip_addr_initialized = false;
-static struct ip_addr src_ip_addr = {
-    (192 << 24 | 168 << 16 | 10 << 8 | 2 << 0)
-};
-
-
-const struct ip_addr *get_ip_addr(void)
-{
-  if (!src_ip_addr_initialized){    // fetch from eeprom
-    src_ip_addr_initialized = true;
-
-    // if we're simulating, don't read the EEPROM model, it's REALLY slow
-    if (hwconfig_simulation_p())
-      return &src_ip_addr;
-    
-    struct ip_addr tmp;
-    bool ok = eeprom_read(USRP2_I2C_ADDR_MBOARD, USRP2_EE_MBOARD_IP_ADDR, &tmp, sizeof(tmp));
-    if (!ok || unprogrammed(&tmp, sizeof(tmp))){
-      // use the default
-    }
-    else
-      src_ip_addr = tmp;
-  }
-
-  return &src_ip_addr;
-}
-
-bool set_ip_addr(const struct ip_addr *t){
-  bool ok = eeprom_write(USRP2_I2C_ADDR_MBOARD, USRP2_EE_MBOARD_IP_ADDR, t, sizeof(struct ip_addr));
-  if (ok){
-    src_ip_addr = *t;
-    src_ip_addr_initialized = true;
-  }
-
-  return ok;
-}
-*/
 int
 ethernet_check_errors(void)
 {
diff --git a/firmware/microblaze/usrp2p/memory_map.h b/firmware/zpu/usrp2p/memory_map.h
index 3b2dc0057..36d8ac9f2 100644
--- a/firmware/microblaze/usrp2p/memory_map.h
+++ b/firmware/zpu/usrp2p/memory_map.h
@@ -16,38 +16,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-/* Overall Memory Map
- *   0000-FFFF  64K    RAM space
- *
- *   0000-1FFF  8K     Boot RAM
- *   2000-5FFF  16K    Buffer pool
- *   6000-7FFF  8K     Peripherals
- *   8000-FFFF  32K    Main System RAM
-
-
-From u2plus_core.v:
-wb_1master #(.decode_w(8),
-.s0_addr(8'b0000_0000),.s0_mask(8'b1110_0000),  // 0-8K, Boot RAM
-.s1_addr(8'b0100_0000),.s1_mask(8'b1100_0000),  // 16K-32K, Buffer Pool
-.s2_addr(8'b0011_0000),.s2_mask(8'b1111_1111),  // SPI 0x3000
-.s3_addr(8'b0011_0001),.s3_mask(8'b1111_1111),  // I2C 0x3100
-.s4_addr(8'b0011_0010),.s4_mask(8'b1111_1111),  // GPIO 0x3200
-.s5_addr(8'b0011_0011),.s5_mask(8'b1111_1111),  // Readback 0x3300
-.s6_addr(8'b0011_0100),.s6_mask(8'b1111_1111),  // Ethernet MAC 0x3400
-.s7_addr(8'b0010_0000),.s7_mask(8'b1111_0000),  // 8-12K, Settings Bus (only uses 1K) 0x2000-0x2FFF
-.s8_addr(8'b0011_0101),.s8_mask(8'b1111_1111),  // PIC 0x3500
-.s9_addr(8'b0011_0110),.s9_mask(8'b1111_1111),  // Unused 0x3600
-.sa_addr(8'b0011_0111),.sa_mask(8'b1111_1111),  // UART 0x3700
-.sb_addr(8'b0011_1000),.sb_mask(8'b1111_1111),  // ATR 0x3800
-.sc_addr(8'b0011_1001),.sc_mask(8'b1111_1111),  // Unused 0x3900
-.sd_addr(8'b0011_1010),.sd_mask(8'b1111_1111),  // ICAP 0x3A00
-.se_addr(8'b0011_1011),.se_mask(8'b1111_1111),  // SPI Flash 0x3B00
-.sf_addr(8'b1000_0000),.sf_mask(8'b1000_0000),  // 32-64K, Main RAM 0x8000-0xFFFF
-               .dw(dw),.aw(aw),.sw(sw)) wb_1master
-
- */
-
-
 #ifndef INCLUDED_MEMORY_MAP_H
 #define INCLUDED_MEMORY_MAP_H
 
@@ -70,27 +38,17 @@ wb_1master #(.decode_w(8),
 
 
 ////////////////////////////////////////////////////////////////
-// Buffer Pool RAM, Slave 1
+// Packet Router RAM, Slave 1
 //
-// The buffers themselves are located in Slave 1, Buffer Pool RAM.
-// The status registers are in Slave 5, Buffer Pool Status.
+// The buffers themselves are located in Slave 1, Packet Router RAM.
+// The status registers are in Slave 5, Packet Router Status.
 // The control register is in Slave 7, Settings Bus.
 
-#define BUFFER_POOL_RAM_BASE 0x4000
-
-#define	NBUFFERS                8
-#define BP_NLINES	   0x0200	// number of 32-bit lines in a buffer
-#define BP_LAST_LINE	(BP_NLINES - 1)	// last line in a buffer
-
-#define buffer_pool_ram \
-  ((uint32_t *) BUFFER_POOL_RAM_BASE)
-
-#define buffer_ram(n) (&buffer_pool_ram[(n) * BP_NLINES])
-
+#define ROUTER_RAM_BASE 0x4000
 
 /////////////////////////////////////////////////////
 // SPI Core, Slave 2.  See core docs for more info
-#define SPI_BASE 0x3000   // Base address (16-bit) is base peripheral addr
+#define SPI_BASE 0x6000   // Base address (16-bit) is base peripheral addr
 
 typedef struct {
   volatile uint32_t	txrx0;
@@ -129,7 +87,7 @@ typedef struct {
 // I2C, Slave 3
 // See Wishbone I2C-Master Core Specification.
 
-#define I2C_BASE 0x3100
+#define I2C_BASE 0x6100
 
 typedef struct {
   volatile uint32_t  prescaler_lo;	// r/w
@@ -171,7 +129,7 @@ typedef struct {
 //
 // These go to the daughterboard i/o pins
 
-#define GPIO_BASE 0x3200
+#define GPIO_BASE 0x6200
 
 typedef struct {
   volatile uint32_t	io;	  // tx data in high 16, rx in low 16
@@ -189,95 +147,27 @@ typedef struct {
 #define gpio_base ((gpio_regs_t *) GPIO_BASE)
 
 ///////////////////////////////////////////////////
-// Buffer Pool Status, Slave 5
+// Packet Router Status, Slave 5
 //
-// The buffers themselves are located in Slave 1, Buffer Pool RAM.
-// The status registers are in Slave 5, Buffer Pool Status.
+// The buffers themselves are located in Slave 1, Packet Router RAM.
+// The status registers are in Slave 5, Packet Router Status.
 // The control register is in Slave 7, Settings Bus.
 
-#define BUFFER_POOL_STATUS_BASE 0x3300
+#define ROUTER_STATUS_BASE 0x6300
 
 typedef struct {
-  volatile uint32_t last_line[NBUFFERS]; // last line xfer'd in buffer
-  volatile uint32_t status;	         // error and done flags
+  volatile uint32_t _padding[8];
+  volatile uint32_t status;
   volatile uint32_t hw_config;	         // see below
-  volatile uint32_t dummy[3];
+  volatile uint32_t time64_secs_rb;
+  volatile uint32_t time64_ticks_rb;
+  volatile uint32_t compat_num;
   volatile uint32_t irqs;
-  volatile uint32_t pri_enc_bp_status;
-  volatile uint32_t cycle_count;
-} buffer_pool_status_t;
-
-#define buffer_pool_status ((buffer_pool_status_t *) BUFFER_POOL_STATUS_BASE)
-
-#define BUTTON_PUSHED ((buffer_pool_status->irqs & PIC_BUTTON) ? 0 : 1)
-
-/*
- * Buffer n's xfer is done.
- * Clear this bit by issuing bp_clear_buf(n)
- */
-#define BPS_DONE(n)     (0x00000001 << (n))
-#define BPS_DONE_0	BPS_DONE(0)
-#define BPS_DONE_1	BPS_DONE(1)
-#define BPS_DONE_2	BPS_DONE(2)
-#define BPS_DONE_3	BPS_DONE(3)
-#define BPS_DONE_4	BPS_DONE(4)
-#define BPS_DONE_5	BPS_DONE(5)
-#define BPS_DONE_6	BPS_DONE(6)
-#define BPS_DONE_7	BPS_DONE(7)
+} router_status_t;
 
-/*
- * Buffer n's xfer had an error.
- * Clear this bit by issuing bp_clear_buf(n)
- */
-#define BPS_ERROR(n)	(0x00000100 << (n))
-#define BPS_ERROR_0	BPS_ERROR(0)
-#define BPS_ERROR_1	BPS_ERROR(1)
-#define BPS_ERROR_2	BPS_ERROR(2)
-#define BPS_ERROR_3	BPS_ERROR(3)
-#define BPS_ERROR_4	BPS_ERROR(4)
-#define BPS_ERROR_5	BPS_ERROR(5)
-#define BPS_ERROR_6	BPS_ERROR(6)
-#define BPS_ERROR_7	BPS_ERROR(7)
+#define router_status ((router_status_t *) ROUTER_STATUS_BASE)
 
-/*
- * Buffer n is idle.  A buffer is idle if it's not
- * DONE, ERROR, or processing a transaction.  If it's
- * IDLE, it's safe to start a new transaction.
- *
- * Clear this bit by starting a xfer with
- * bp_send_from_buf or bp_receive_to_buf.
- */
-#define BPS_IDLE(n)     (0x00010000 << (n))
-#define BPS_IDLE_0	BPS_IDLE(0)
-#define BPS_IDLE_1	BPS_IDLE(1)
-#define BPS_IDLE_2	BPS_IDLE(2)
-#define BPS_IDLE_3	BPS_IDLE(3)
-#define BPS_IDLE_4	BPS_IDLE(4)
-#define BPS_IDLE_5	BPS_IDLE(5)
-#define BPS_IDLE_6	BPS_IDLE(6)
-#define BPS_IDLE_7	BPS_IDLE(7)
-
-/*
- * Buffer n has a "slow path" packet in it.
- * This bit is orthogonal to the bits above and indicates that
- * the FPGA ethernet rx protocol engine has identified this packet
- * as one requiring firmware intervention.
- */
-#define BPS_SLOWPATH(n) (0x01000000 << (n))
-#define BPS_SLOWPATH_0	BPS_SLOWPATH(0)
-#define BPS_SLOWPATH_1	BPS_SLOWPATH(1)
-#define BPS_SLOWPATH_2	BPS_SLOWPATH(2)
-#define BPS_SLOWPATH_3	BPS_SLOWPATH(3)
-#define BPS_SLOWPATH_4	BPS_SLOWPATH(4)
-#define BPS_SLOWPATH_5	BPS_SLOWPATH(5)
-#define BPS_SLOWPATH_6	BPS_SLOWPATH(6)
-#define BPS_SLOWPATH_7	BPS_SLOWPATH(7)
-
-
-#define BPS_DONE_ALL	  0x000000ff	// mask of all dones
-#define BPS_ERROR_ALL	  0x0000ff00	// mask of all errors
-#define BPS_IDLE_ALL      0x00ff0000	// mask of all idles
-#define BPS_SLOWPATH_ALL  0xff000000	// mask of all slowpaths
+#define BUTTON_PUSHED ((router_status->irqs & PIC_BUTTON) ? 0 : 1)
 
 // The hw_config register
 
@@ -290,7 +180,7 @@ typedef struct {
 inline static int
 hwconfig_simulation_p(void)
 {
-  return buffer_pool_status->hw_config & HWC_SIMULATION;
+  return router_status->hw_config & HWC_SIMULATION;
 }
 
 /*!
@@ -300,13 +190,13 @@ hwconfig_simulation_p(void)
 inline static int
 hwconfig_wishbone_divisor(void)
 {
-  return buffer_pool_status->hw_config & HWC_WB_CLK_DIV_MASK;
+  return router_status->hw_config & HWC_WB_CLK_DIV_MASK;
 }
 
 ///////////////////////////////////////////////////
 // Ethernet Core, Slave 6
 
-#define ETH_BASE 0x3400
+#define ETH_BASE 0x6400
 
 #include "eth_mac_regs.h"
 
@@ -319,16 +209,12 @@ hwconfig_wishbone_divisor(void)
 // 1KB of address space (== 256 32-bit write-only regs)
 
 
-#define MISC_OUTPUT_BASE        0x2000
-#define	TX_PROTOCOL_ENGINE_BASE 0x2080
-#define	RX_PROTOCOL_ENGINE_BASE 0x20C0
-#define BUFFER_POOL_CTRL_BASE   0x2100
-#define LAST_SETTING_REG        0x23FC	// last valid setting register
+#define MISC_OUTPUT_BASE        0x5000
 
 #define SR_MISC 0
 #define SR_TX_PROT_ENG 32
 #define SR_RX_PROT_ENG 48
-#define SR_BUFFER_POOL_CTRL 64
+#define SR_ROUTER_CTRL 64
 #define SR_UDP_SM 96
 #define SR_TX_DSP 208
 #define SR_TX_CTRL 224
@@ -340,53 +226,18 @@ hwconfig_wishbone_divisor(void)
 
 #define	_SR_ADDR(sr)	(MISC_OUTPUT_BASE + (sr) * sizeof(uint32_t))
 
-// --- buffer pool control regs ---
+#define SR_ADDR_BLDRDONE _SR_ADDR(5)
+
+// --- packet router control regs ---
 
 typedef struct {
-  volatile uint32_t ctrl;
-} buffer_pool_ctrl_t;
-
-// buffer pool ports
-
-#define	PORT_SERDES	0	// serial/deserializer
-#define	PORT_DSP	1	// DSP tx or rx pipeline
-#define	PORT_ETH	2	// ethernet tx or rx
-#define	PORT_RAM	3	// RAM tx or rx
-
-// the buffer pool ctrl register fields
-
-#define BPC_BUFFER(n) (((n) & 0xf) << 28)
-#define   BPC_BUFFER_MASK      BPC_BUFFER(~0)
-#define   BPC_BUFFER_0	       BPC_BUFFER(0)
-#define   BPC_BUFFER_1	       BPC_BUFFER(1)
-#define   BPC_BUFFER_2	       BPC_BUFFER(2)
-#define   BPC_BUFFER_3	       BPC_BUFFER(3)
-#define   BPC_BUFFER_4	       BPC_BUFFER(4)
-#define   BPC_BUFFER_5	       BPC_BUFFER(5)
-#define   BPC_BUFFER_6	       BPC_BUFFER(6)
-#define   BPC_BUFFER_7	       BPC_BUFFER(7)
-#define	  BPC_BUFFER_NIL       BPC_BUFFER(0x8)	// disable
-
-#define BPC_PORT(n) (((n) & 0x7) << 25)
-#define   BPC_PORT_MASK        BPC_PORT(~0)
-#define   BPC_PORT_SERDES      BPC_PORT(PORT_SERDES)
-#define   BPC_PORT_DSP	       BPC_PORT(PORT_DSP)
-#define   BPC_PORT_ETH         BPC_PORT(PORT_ETH)
-#define   BPC_PORT_RAM         BPC_PORT(PORT_RAM)
-#define   BPC_PORT_NIL	       BPC_PORT(0x4)   	// disable
-
-#define	BPC_CLR	       	       (1 << 24)  // mutually excl commands
-#define	BPC_READ	       (1 << 23)
-#define BPC_WRITE              (1 << 22)
-
-#define BPC_STEP(step) (((step) & 0xf) << 18)
-#define   BPC_STEP_MASK	       BPC_STEP(~0)
-#define BPC_LAST_LINE(line) (((line) & 0x1ff) << 9)
-#define   BPC_LAST_LINE_MASK   BPC_LAST_LINE(~0)
-#define BPC_FIRST_LINE(line) (((line) & 0x1ff) << 0)
-#define   BPC_FIRST_LINE_MASK  BPC_FIRST_LINE(~0)
-
-#define buffer_pool_ctrl ((buffer_pool_ctrl_t *) BUFFER_POOL_CTRL_BASE)
+  volatile uint32_t mode_ctrl;
+  volatile uint32_t ip_addr;
+  volatile uint32_t data_ports; //dsp0 (low 16) dsp1 (high 16)
+  volatile uint32_t iface_ctrl;
+} router_ctrl_t;
+
+#define router_ctrl ((router_ctrl_t *) _SR_ADDR(SR_ROUTER_CTRL))
 
 // --- misc outputs ---
 
@@ -416,11 +267,11 @@ typedef struct {
 
 // crazy order that matches the labels on the case
 
-#define	LED_A		(1 << 2)
-#define	LED_B		(1 << 0)
-#define	LED_E		(1 << 3)
-#define	LED_D		(1 << 1)
-#define	LED_C		(1 << 4)
+#define	LED_A		(1 << 4)
+#define	LED_B		(1 << 1)
+#define	LED_E		(1 << 2)
+#define	LED_D		(1 << 0)
+#define	LED_C		(1 << 3)
 //      LED_F		// controlled by CPLD
 #define	LED_RJ45	(1 << 5)
 
@@ -462,11 +313,21 @@ typedef struct {
     uint32_t length;
     uint32_t checksum; //word 22
   } udp_hdr;
-  volatile uint32_t _pad[32-23];
+  volatile uint32_t _pad[1];
+  volatile uint32_t dsp0_port;
+  volatile uint32_t err0_port;
+  volatile uint32_t dsp1_port;
+  volatile uint32_t err1_port;
 } sr_udp_sm_t;
 
 // control bits (all expect UDP_SM_LAST_WORD are mutually exclusive)
 
+// Insert a UDP source port from the table
+#define UDP_SM_INS_UDP_SRC_PORT     (1 << 21)
+
+// Insert a UDP dest port from the table
+#define UDP_SM_INS_UDP_DST_PORT     (1 << 20)
+
 // This is the last word of the header
 #define	UDP_SM_LAST_WORD		(1 << 19)
 
@@ -679,7 +540,7 @@ typedef struct {
   volatile uint32_t  seqno;	     // Write to init seqno.  It autoincs on match
 } tx_proto_engine_regs_t;
 
-#define tx_proto_engine ((tx_proto_engine_regs_t *) TX_PROTOCOL_ENGINE_BASE)
+#define tx_proto_engine ((tx_proto_engine_regs_t *) _SR_ADDR(SR_TX_PROT_ENG))
 
 /*
  * --- ethernet rx protocol engine regs (write only) ---
@@ -706,14 +567,14 @@ typedef struct {
   volatile uint32_t  ethertype_pad;  // ethertype in high 16-bits
 } rx_proto_engine_regs_t;
 
-#define rx_proto_engine ((rx_proto_engine_regs_t *) RX_PROTOCOL_ENGINE_BASE)
+#define rx_proto_engine ((rx_proto_engine_regs_t *) _SR_ADDR(SR_RX_PROT_ENG))
 
 
 
 ///////////////////////////////////////////////////
 // Simple Programmable Interrupt Controller, Slave 8
 
-#define PIC_BASE  0x3500
+#define PIC_BASE  0x6500
 
 // Interrupt request lines
 // Bit numbers (LSB == 0) that correpond to interrupts into PIC
@@ -773,7 +634,7 @@ typedef struct {
 ///////////////////////////////////////////////////
 // UART, Slave 10
 
-#define UART_BASE  0x3700
+#define UART_BASE  0x6700
 
 typedef struct {
   //  All elements are 8 bits except for clkdiv (16), but we use uint32 to make 
@@ -791,7 +652,7 @@ typedef struct {
 ///////////////////////////////////////////////////
 // ATR Controller, Slave 11
 
-#define ATR_BASE  0x3800
+#define ATR_BASE  0x6800
 
 typedef struct {
   volatile uint32_t	v[16];
@@ -810,7 +671,7 @@ typedef struct {
 ///////////////////////////////////////////////////
 // ICAP, Slave 13
 
-#define ICAP_BASE 0x3A00
+#define ICAP_BASE 0x6A00
 typedef struct {
   uint32_t icap; //only the lower 8 bits matter
 } icap_regs_t;
@@ -822,7 +683,7 @@ typedef struct {
 // Control register definitions are the same as SPI, so use SPI_CTRL_ASS, etc.
 // Peripheral mask not needed since bus is dedicated (CE held low)
 
-#define SPIF_BASE 0x3B00
+#define SPIF_BASE 0x6B00
 typedef struct {
   volatile uint32_t	txrx0;
   volatile uint32_t	txrx1;
diff --git a/firmware/microblaze/usrp2p/spi_flash.c b/firmware/zpu/usrp2p/spi_flash.c
index 09b74a513..25fc239be 100644
--- a/firmware/microblaze/usrp2p/spi_flash.c
+++ b/firmware/zpu/usrp2p/spi_flash.c
@@ -1,7 +1,7 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2009 Free Software Foundation, Inc.
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/usrp2p/spi_flash.h b/firmware/zpu/usrp2p/spi_flash.h
index bbe7b650d..a10533e08 100644
--- a/firmware/microblaze/usrp2p/spi_flash.h
+++ b/firmware/zpu/usrp2p/spi_flash.h
@@ -1,7 +1,7 @@
 /* -*- c -*- */
 /*
  * Copyright 2009 Free Software Foundation, Inc.
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -30,20 +30,11 @@
 
 uint32_t spi_flash_rdid(void);	/* Read ID */
 uint32_t spi_flash_rdsr(void);	/* Read Status Register */
-size_t spi_flash_log2_sector_size(void) __attribute__((pure));  /* either 16 or 18 */
-size_t spi_flash_log2_memory_size(void);
 
-static inline size_t
-spi_flash_sector_size(void)
-{
-  return ((size_t) 1) << spi_flash_log2_sector_size();
-}
-
-static inline size_t
-spi_flash_memory_size(void)
-{
-  return ((size_t) 1) << spi_flash_log2_memory_size();
-}
+size_t spi_flash_log2_memory_size(void);
+size_t spi_flash_log2_sector_size(void);
+size_t spi_flash_sector_size(void);
+size_t spi_flash_memory_size(void);
 
 void spi_flash_read(uint32_t flash_addr,  size_t nbytes, void *buf);
 
diff --git a/firmware/microblaze/usrp2p/spi_flash_private.h b/firmware/zpu/usrp2p/spi_flash_private.h
index 9a1b8d3e3..6bf06fda8 100644
--- a/firmware/microblaze/usrp2p/spi_flash_private.h
+++ b/firmware/zpu/usrp2p/spi_flash_private.h
@@ -1,7 +1,7 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2009 Free Software Foundation, Inc.
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/usrp2p/spi_flash_read.c b/firmware/zpu/usrp2p/spi_flash_read.c
index 4682c5fe6..fffc2a671 100644
--- a/firmware/microblaze/usrp2p/spi_flash_read.c
+++ b/firmware/zpu/usrp2p/spi_flash_read.c
@@ -1,7 +1,7 @@
 /* -*- c++ -*- */
 /*
  * Copyright 2009 Free Software Foundation, Inc.
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,8 +19,7 @@
 
 #include "spi_flash_private.h"
 #include <stdlib.h>		// abort
-
-static size_t _spi_flash_log2_memory_size;
+#include <nonstdio.h>
 
 uint32_t 
 spi_flash_rdid(void)
@@ -28,46 +27,39 @@ spi_flash_rdid(void)
   return spif_transact(SPI_TXRX, SPI_SS_FLASH, RDID_CMD << 24, 32, FLAGS) & 0xffffff;
 }
 
-size_t 
-spi_flash_log2_sector_size(void)
+size_t spi_flash_log2_memory_size(void)
 {
-  static size_t _spi_flash_log2_sector_size;
-
-  if (_spi_flash_log2_sector_size != 0)
-    return _spi_flash_log2_sector_size;
-
-  
-  uint32_t id = spi_flash_rdid();
-  int type = (id >> 8) & 0xff;
-  int size = id & 0xff;
-  if (type != 0x20 || size < 22 || size > 24)
-    abort();
-
-  static unsigned char log2_sector_size[3] = {
-    16,	/* M25P32  */
-    16, /* M25P64  */
-    18, /* M25P128 */
-  };
-
-  _spi_flash_log2_sector_size = log2_sector_size[size - 22];
-  _spi_flash_log2_memory_size = size; //while we're at it
-  return _spi_flash_log2_sector_size;
+    static size_t _spi_flash_log2_memory_size = 0;
+    if (_spi_flash_log2_memory_size == 0){
+        uint32_t id = spi_flash_rdid();
+        uint8_t type = (id >> 8) & 0xff;
+        uint8_t size = (id >> 0) & 0xff;
+        if (type != 0x20) abort();
+        _spi_flash_log2_memory_size = size;
+    }
+    if (_spi_flash_log2_memory_size < 22 ||
+        _spi_flash_log2_memory_size > 24 ) abort();
+    return _spi_flash_log2_memory_size;
 }
 
-size_t
-spi_flash_log2_memory_size(void)
+size_t spi_flash_log2_sector_size(void)
 {
-  if (_spi_flash_log2_memory_size != 0)
-    return _spi_flash_log2_memory_size;
+    static unsigned char log2_sector_size[3] = {
+        16, /* M25P32  */
+        16, /* M25P64  */
+        18, /* M25P128 */
+    };
+    return log2_sector_size[spi_flash_log2_memory_size() - 22];
+}
 
-  uint32_t id = spi_flash_rdid();
-  int type = (id >> 8) & 0xff;
-  int size = id & 0xff;
-  if (type != 0x20 || size < 22 || size > 24)
-    abort();
+size_t spi_flash_sector_size(void)
+{
+  return ((size_t) 1) << spi_flash_log2_sector_size();
+}
 
-  _spi_flash_log2_memory_size = size;
-  return _spi_flash_log2_memory_size;
+size_t spi_flash_memory_size(void)
+{
+  return ((size_t) 1) << spi_flash_log2_memory_size();
 }
 
 void 
@@ -100,7 +92,8 @@ spi_flash_read(uint32_t flash_addr,  size_t nbytes, void *buf)
    */
   unsigned char *dst = (unsigned char *) buf;
   size_t m;
-  for (size_t n = 0; n < nbytes; n += m, dst += m){
+  for (size_t n = 0; n < nbytes; n += m){
+        
     spif_regs->ctrl = FLAGS | LEN(16 * 8);	// xfer 16 bytes
     spif_regs->ctrl = FLAGS | LEN(16 * 8) | SPI_CTRL_GO_BSY;
     spif_wait();
@@ -113,7 +106,7 @@ spi_flash_read(uint32_t flash_addr,  size_t nbytes, void *buf)
     unsigned char *src = (unsigned char *) &w[0];
     m = min(nbytes - n, 16);
     for (size_t i = 0; i < m; i++)
-      dst[i] = src[i];
+      *(dst++) = src[i];
   }
   spif_regs->ss = 0;			// deassert chip select
 }
diff --git a/firmware/microblaze/usrp2p/spif.c b/firmware/zpu/usrp2p/spif.c
index 1c1a348f4..91da73155 100644
--- a/firmware/microblaze/usrp2p/spif.c
+++ b/firmware/zpu/usrp2p/spif.c
@@ -1,6 +1,6 @@
 /*
  * Copyright 2007,2008,2009 Free Software Foundation, Inc.
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/apps/cruft/echo.c b/firmware/zpu/usrp2p/u2p_init.c
index 89108ee80..381987ae6 100644
--- a/firmware/microblaze/apps/cruft/echo.c
+++ b/firmware/zpu/usrp2p/u2p_init.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008 Free Software Foundation, Inc.
+ * Copyright 2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,20 +15,16 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "u2_init.h"
-#include "stdio.h"
+#include "u2p_init.h"
+#include "i2c.h"
+#include "ethernet.h"
 
-int
-main(void)
-{
-  u2_init();
-
-  puts("\n>>> echo <<<");
-
-  while (1){
-    int ch = getchar();
-    putchar(ch);
-  }
-
-  return 0;
+void u2p_init(void){
+    //we do this to see if we should set a default ip addr or not
+    bool safe_fw = find_safe_booted_flag();
+    set_safe_booted_flag(0);
+    if (safe_fw) {
+        set_default_ip_addr();
+        set_default_mac_addr();
+    }
 }
diff --git a/firmware/microblaze/lib/gdbstub2.h b/firmware/zpu/usrp2p/u2p_init.h
index 15cdde939..b0dc20f1f 100644
--- a/firmware/microblaze/lib/gdbstub2.h
+++ b/firmware/zpu/usrp2p/u2p_init.h
@@ -1,6 +1,5 @@
-/* -*- c++ -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -16,10 +15,4 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef INCLUDED_GDBSTUB_H
-#define INCLUDED_GDBSTUB_H
-
-void gdbstub2_main_loop(void);
-
-#endif /* INCLUDED_GDBSTUB_H */
-
+void u2p_init(void);
diff --git a/firmware/microblaze/usrp2p/udp_fw_update.c b/firmware/zpu/usrp2p/udp_fw_update.c
index ead08ad2c..ead08ad2c 100644
--- a/firmware/microblaze/usrp2p/udp_fw_update.c
+++ b/firmware/zpu/usrp2p/udp_fw_update.c
diff --git a/firmware/microblaze/usrp2p/xilinx_s3_icap.c b/firmware/zpu/usrp2p/xilinx_s3_icap.c
index 50c85231c..8995aa23d 100644
--- a/firmware/microblaze/usrp2p/xilinx_s3_icap.c
+++ b/firmware/zpu/usrp2p/xilinx_s3_icap.c
@@ -1,6 +1,6 @@
 /* -*- c -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/firmware/microblaze/usrp2p/xilinx_s3_icap.h b/firmware/zpu/usrp2p/xilinx_s3_icap.h
index 7b7e9eccc..d4238eee9 100644
--- a/firmware/microblaze/usrp2p/xilinx_s3_icap.h
+++ b/firmware/zpu/usrp2p/xilinx_s3_icap.h
@@ -1,6 +1,6 @@
 /* -*- c -*- */
 /*
- * Copyright 2009 Ettus Research LLC
+ * Copyright 2009-2011 Ettus Research LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/fix-copyright-years b/fix-copyright-years
new file mode 100755
index 000000000..97630041b
--- /dev/null
+++ b/fix-copyright-years
@@ -0,0 +1,71 @@
+#!/usr/bin/env python
+
+import re
+import optparse
+import datetime
+import subprocess
+import multiprocessing
+
+co_line_matcher = re.compile('^.*Copyright (.*) Ettus Research LLC$')
+
+def command(*args): return subprocess.Popen(args, stdout=subprocess.PIPE).communicate()[0]
+
+def get_co_line(lines):
+    for i, line in enumerate(lines[:5]):
+        if co_line_matcher.match(line): return line, i
+    return None, None
+
+def fix_co_years(files, keep_years):
+    for file in files:
+        print file
+        lines = open(file).readlines()
+        line, num = get_co_line(lines)
+        if line is None: continue
+
+        #extract the years from the git history
+        log_years = map(
+            lambda l: int(l.split()[-2]),
+            filter(
+                lambda l: l.startswith('Date'),
+                command('git', 'log', file).splitlines(),
+            ),
+        )
+        log_years = min(log_years), max(log_years)
+
+        #extract years from co string
+        try:
+            co_years_str = co_line_matcher.match(line).groups()[0]
+            co_years = map(int, co_years_str.split('-'))
+            co_years = min(co_years), max(co_years)
+        except Exception, e:
+            print '    format error on line %d: "%s"'%(num, line), e
+            continue
+
+        #keep years means log years is a superset
+        if keep_years: log_years = min(co_years+log_years), max(co_years+log_years)
+
+        if log_years != co_years:
+            print '    log years: %s != copyright years: %s'%(log_years, co_years)
+            year_now = datetime.datetime.now().year
+            all_years = min(log_years), max(list(log_years)+[year_now]) #add the current year
+            all_years_str = '%s-%s'%all_years
+            if all_years[0] == all_years[1]: all_years_str = str(all_years[0])
+            new_text = ''.join(lines[:num] + [line.replace(co_years_str, all_years_str)] + lines[num+1:])
+            open(file, 'w').write(new_text)
+
+if __name__ == "__main__":
+    parser = optparse.OptionParser(usage="usage: %prog [options] path")
+    parser.add_option("-k", "--keep", action="store_true", help="keep copyright years", default=False)
+    (options, args) = parser.parse_args()
+
+    #get recursive list of files in the repo
+    files = command('git', 'ls-tree', '--name-only', 'HEAD', '-r', args[0]).splitlines()
+
+    #start n+1 processes to handle the files
+    num_procs = multiprocessing.cpu_count()
+    procs = [multiprocessing.Process(
+        target=lambda *files: fix_co_years(files, keep_years=options.keep),
+        args=files[num::num_procs],
+    ) for num in range(num_procs)]
+    map(multiprocessing.Process.start, procs)
+    map(multiprocessing.Process.join, procs)
diff --git a/fpga/usrp2/control_lib/Makefile.srcs b/fpga/usrp2/control_lib/Makefile.srcs
index d3bb7e2c8..751b40828 100644
--- a/fpga/usrp2/control_lib/Makefile.srcs
+++ b/fpga/usrp2/control_lib/Makefile.srcs
@@ -30,6 +30,7 @@ srl.v \
 system_control.v \
 wb_1master.v \
 wb_readback_mux.v \
+wb_readback_mux_16LE.v \
 quad_uart.v \
 simple_uart.v \
 simple_uart_tx.v \
diff --git a/fpga/usrp2/control_lib/wb_readback_mux_16LE.v b/fpga/usrp2/control_lib/wb_readback_mux_16LE.v
new file mode 100644
index 000000000..2b01898c1
--- /dev/null
+++ b/fpga/usrp2/control_lib/wb_readback_mux_16LE.v
@@ -0,0 +1,73 @@
+
+
+// Note -- clocks must be synchronous (derived from the same source)
+// Assumes alt_clk is running at a multiple of wb_clk
+
+// Note -- assumes that the lower-16 bits will be requested first,
+// and that the upper-16 bit request will come immediately after.
+
+module wb_readback_mux_16LE
+  (input wb_clk_i,
+   input wb_rst_i,
+   input wb_stb_i,
+   input [15:0] wb_adr_i,
+   output [15:0] wb_dat_o,
+   output reg wb_ack_o,
+
+   input [31:0] word00,
+   input [31:0] word01,
+   input [31:0] word02,
+   input [31:0] word03,
+   input [31:0] word04,
+   input [31:0] word05,
+   input [31:0] word06,
+   input [31:0] word07,
+   input [31:0] word08,
+   input [31:0] word09,
+   input [31:0] word10,
+   input [31:0] word11,
+   input [31:0] word12,
+   input [31:0] word13,
+   input [31:0] word14,
+   input [31:0] word15
+   );
+
+   wire ack_next = wb_stb_i & ~wb_ack_o;
+
+   always @(posedge wb_clk_i)
+     if(wb_rst_i)
+       wb_ack_o <= 0;
+     else
+       wb_ack_o <= ack_next;
+
+   reg [31:0] data;
+   assign wb_dat_o = data[15:0];
+
+   always @(posedge wb_clk_i)
+    if (wb_adr_i[1] & ack_next) begin //upper half
+        data[15:0] <= data[31:16];
+    end
+    else if (~wb_adr_i[1] & ack_next) begin //lower half
+     case(wb_adr_i[5:2])
+       0 : data <= word00;
+       1 : data <= word01;
+       2 : data <= word02;
+       3 : data <= word03;
+       4 : data <= word04;
+       5 : data <= word05;
+       6 : data <= word06;
+       7 : data <= word07;
+       8 : data <= word08;
+       9 : data <= word09;
+       10: data <= word10;
+       11: data <= word11;
+       12: data <= word12;
+       13: data <= word13;
+       14: data <= word14;
+       15: data <= word15;
+     endcase // case(wb_adr_i[5:2])
+    end
+
+endmodule // wb_readback_mux
+
+
diff --git a/fpga/usrp2/coregen/_xmsgs/pn_parser.xmsgs b/fpga/usrp2/coregen/_xmsgs/pn_parser.xmsgs
deleted file mode 100644
index d946af064..000000000
--- a/fpga/usrp2/coregen/_xmsgs/pn_parser.xmsgs
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- IMPORTANT: This is an internal file that has been generated   -->
-<!--     by the Xilinx ISE software.  Any direct editing or        -->
-<!--     changes made to this file may result in unpredictable     -->
-<!--     behavior or data corruption.  It is strongly advised that -->
-<!--     users do not edit the contents of this file.              -->
-<!--                                                               -->
-<!-- Copyright (c) 1995-2010 Xilinx, Inc.  All rights reserved.    -->
-
-<messages>
-<msg type="info" file="ProjectMgmt" num="1062" ><arg fmt="%s" index="1">Parsing Verilog file &quot;/home/jblum/uhdpriv/fpga/usrp2/coregen/fifo_xlnx_512x36_2clk_prog_full.v&quot; into library work</arg>
-</msg>
-
-</messages>
-
diff --git a/fpga/usrp2/coregen/fifo_xlnx_512x36_2clk_18to36.ncf b/fpga/usrp2/coregen/fifo_xlnx_512x36_2clk_18to36.ncf
deleted file mode 100644
index e69de29bb..000000000
--- a/fpga/usrp2/coregen/fifo_xlnx_512x36_2clk_18to36.ncf
+++ /dev/null
diff --git a/fpga/usrp2/coregen/fifo_xlnx_512x36_2clk_36to18.ncf b/fpga/usrp2/coregen/fifo_xlnx_512x36_2clk_36to18.ncf
deleted file mode 100644
index e69de29bb..000000000
--- a/fpga/usrp2/coregen/fifo_xlnx_512x36_2clk_36to18.ncf
+++ /dev/null
diff --git a/fpga/usrp2/fifo/Makefile.srcs b/fpga/usrp2/fifo/Makefile.srcs
index c66979132..f0b5b7bae 100644
--- a/fpga/usrp2/fifo/Makefile.srcs
+++ b/fpga/usrp2/fifo/Makefile.srcs
@@ -7,7 +7,10 @@
 ##################################################
 FIFO_SRCS = $(abspath $(addprefix $(BASE_DIR)/../fifo/, \
 buffer_int.v \
+buffer_int2.v \
 buffer_pool.v \
+crossbar36.v \
+dsp_framer36.v \
 fifo_2clock.v \
 fifo_2clock_cascade.v \
 ll8_shortfifo.v \
@@ -22,4 +25,7 @@ fifo36_to_fifo19.v \
 fifo19_to_fifo36.v \
 fifo36_mux.v \
 fifo36_demux.v \
+packet_router.v \
+splitter36.v \
+valve36.v \
 ))
diff --git a/fpga/usrp2/fifo/buffer_int.v b/fpga/usrp2/fifo/buffer_int.v
index b45ed3532..49ded8c8d 100644
--- a/fpga/usrp2/fifo/buffer_int.v
+++ b/fpga/usrp2/fifo/buffer_int.v
@@ -14,7 +14,6 @@ module buffer_int
      output done,
      output error,
      output idle,
-     output [1:0] flag,
      
      // Buffer Interface
      output en_o,
diff --git a/fpga/usrp2/fifo/buffer_int2.v b/fpga/usrp2/fifo/buffer_int2.v
new file mode 100644
index 000000000..765b125fb
--- /dev/null
+++ b/fpga/usrp2/fifo/buffer_int2.v
@@ -0,0 +1,173 @@
+
+// FIFO Interface to the 2K buffer RAMs
+// Read port is read-acknowledge
+// FIXME do we want to be able to interleave reads and writes?
+
+module buffer_int2
+  #(parameter BASE = 0,
+    parameter BUF_SIZE = 9)
+    (input clk, input rst,
+     input set_stb, input [7:0] set_addr, input [31:0] set_data,
+     output [31:0] status,
+
+     // Wishbone interface to RAM
+     input wb_clk_i,
+     input wb_rst_i,
+     input wb_we_i,
+     input wb_stb_i,
+     input [15:0] wb_adr_i,
+     input [31:0] wb_dat_i,   
+     output [31:0] wb_dat_o,
+     output reg wb_ack_o,
+
+     // Write FIFO Interface
+     input [35:0] wr_data_i,
+     input wr_ready_i,
+     output wr_ready_o,
+     
+     // Read FIFO Interface
+     output [35:0] rd_data_o,
+     output rd_ready_o,
+     input rd_ready_i
+     );
+
+   reg [BUF_SIZE-1:0] rd_addr, wr_addr;
+   wire [31:0] 	      ctrl;
+   wire 	      wr_done, wr_error, wr_idle;
+   wire 	      rd_done, rd_error, rd_idle;
+   wire 	      we, en, go;
+
+   reg [BUF_SIZE-1:0] lastline;
+   wire 	      read = ctrl[3];
+   wire 	      rd_clear = ctrl[2];
+   wire 	      write = ctrl[1];
+   wire 	      wr_clear = ctrl[0];
+   
+   reg [2:0] 	      rd_state, wr_state;
+   reg 		      rd_sop, rd_eop;
+   wire 	      wr_sop, wr_eop;
+   reg [1:0] 	      rd_occ;
+   wire [1:0] 	      wr_occ;
+   
+   localparam IDLE = 3'd0;
+   localparam PRE_READ = 3'd1;
+   localparam READING = 3'd2;
+   localparam WRITING = 3'd3;
+   localparam ERROR = 3'd4;
+   localparam DONE = 3'd5;
+
+   // read state machine
+   always @(posedge clk)
+     if(rst | (rd_clear & go))
+       begin
+	  rd_state <= IDLE;
+	  rd_sop <= 0;
+	  rd_eop <= 0;
+	  rd_occ <= 0;
+       end
+     else
+       case(rd_state)
+	 IDLE :
+	   if(go & read)
+	     begin
+		rd_addr <= 0;
+		rd_state <= PRE_READ;
+		lastline <= ctrl[15+BUF_SIZE:16];
+	     end
+	 
+	 PRE_READ :
+	   begin
+	      rd_state <= READING;
+	      rd_addr <= rd_addr + 1;
+	      rd_occ <= 2'b00;
+	      rd_sop <= 1;
+	      rd_eop <= 0;
+	   end
+	 
+	 READING :
+	   if(rd_ready_i)
+	     begin
+		rd_sop <= 0;
+		rd_addr <= rd_addr + 1;
+		if(rd_addr == lastline)
+		  begin
+		     rd_eop <= 1;
+		     // FIXME assign occ here
+		     rd_occ <= 0;
+		  end
+		else
+		  rd_eop <= 0;
+		if(rd_eop)
+		  rd_state <= DONE;
+	     end
+	 
+       endcase // case(rd_state)
+   
+   // write state machine
+   always @(posedge clk)
+     if(rst | (wr_clear & go))
+       wr_state <= IDLE;
+     else 
+       case(wr_state)
+	 IDLE :
+	   if(go & write)
+	     begin
+		wr_addr <= 0;
+		wr_state <= WRITING;
+	     end
+	 
+	 WRITING :
+	   if(wr_ready_i)
+	     begin
+		wr_addr <= wr_addr + 1;
+		if(wr_sop & wr_eop)
+		  wr_state <= ERROR;  // Should save OCC flags here
+		else if(wr_eop)
+		  wr_state <= DONE;
+	     end // if (wr_ready_i)
+       endcase // case(wr_state)
+   
+   assign     rd_data_o[35:32] = { rd_occ[1:0], rd_eop, rd_sop };
+   assign     rd_ready_o = (rd_state == READING);
+   
+   assign     wr_sop = wr_data_i[32];
+   assign     wr_eop = wr_data_i[33];
+   assign     wr_occ = wr_data_i[35:34];
+   assign     wr_ready_o = (wr_state == WRITING);
+
+   assign     we = (wr_state == WRITING); // always write to avoid timing issue
+   assign     en = ~((rd_state==READING)& ~rd_ready_i);   // FIXME potential critical path
+   
+   assign     rd_done = (rd_state == DONE);
+   assign     wr_done = (wr_state == DONE);
+   assign     rd_error = (rd_state == ERROR);
+   assign     wr_error = (wr_state == ERROR);
+   assign     rd_idle = (rd_state == IDLE);
+   assign     wr_idle = (wr_state == IDLE);
+
+   ram_2port #(.DWIDTH(32),.AWIDTH(BUF_SIZE)) buffer_in // CPU reads here
+     (.clka(wb_clk_i),.ena(wb_stb_i),.wea(1'b0),
+      .addra(wb_adr_i[BUF_SIZE+1:2]),.dia(0),.doa(wb_dat_o),
+      .clkb(clk),.enb(1'b1),.web(we),
+      .addrb(wr_addr),.dib(wr_data_i[31:0]),.dob());
+   
+   ram_2port #(.DWIDTH(32),.AWIDTH(BUF_SIZE)) buffer_out // CPU writes here
+     (.clka(wb_clk_i),.ena(wb_stb_i),.wea(wb_we_i),
+      .addra(wb_adr_i[BUF_SIZE+1:2]),.dia(wb_dat_i),.doa(),
+      .clkb(clk),.enb(en),.web(1'b0),
+      .addrb(rd_addr),.dib(0),.dob(rd_data_o[31:0]));
+   
+   always @(posedge wb_clk_i)
+     if(wb_rst_i)
+       wb_ack_o <= 0;
+     else
+       wb_ack_o <= wb_stb_i & ~wb_ack_o;
+
+   setting_reg #(.my_addr(BASE)) 
+   sreg(.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),.in(set_data),
+	.out(ctrl),.changed(go));
+   
+   assign status = { {(16-BUF_SIZE){1'b0}},wr_addr,
+		     8'b0,1'b0,rd_idle,rd_error,rd_done, 1'b0,wr_idle,wr_error,wr_done};
+
+endmodule // buffer_int2
diff --git a/fpga/usrp2/fifo/crossbar36.v b/fpga/usrp2/fifo/crossbar36.v
new file mode 100644
index 000000000..2a046d8bf
--- /dev/null
+++ b/fpga/usrp2/fifo/crossbar36.v
@@ -0,0 +1,42 @@
+
+
+module crossbar36
+  (input clk, input reset, input clear,
+   input cross,
+   input [35:0] data0_i, input src0_rdy_i, output dst0_rdy_o,
+   input [35:0] data1_i, input src1_rdy_i, output dst1_rdy_o,
+   output [35:0] data0_o, output src0_rdy_o, input dst0_rdy_i,
+   output [35:0] data1_o, output src1_rdy_o, input dst1_rdy_i);
+
+   reg 		 cross_int, active0, active1;
+   wire active0_next = (src0_rdy_i & dst0_rdy_o)? ~data0_i[33] : active0;
+   wire active1_next = (src1_rdy_i & dst1_rdy_o)? ~data1_i[33] : active1;
+
+   assign data0_o = cross_int ? data1_i : data0_i;
+   assign data1_o = cross_int ? data0_i : data1_i;
+
+   assign src0_rdy_o = cross_int ? src1_rdy_i : src0_rdy_i;
+   assign src1_rdy_o = cross_int ? src0_rdy_i : src1_rdy_i;
+
+   assign dst0_rdy_o = cross_int ? dst1_rdy_i : dst0_rdy_i;
+   assign dst1_rdy_o = cross_int ? dst0_rdy_i : dst1_rdy_i;
+   
+   always @(posedge clk)
+     if(reset | clear)
+       active0 <= 0;
+     else
+       active0 <= active0_next;
+   
+   always @(posedge clk)
+     if(reset | clear)
+       active1 <= 0;
+     else
+       active1 <= active1_next;
+
+   always @(posedge clk)
+     if(reset | clear)
+       cross_int <= 0;
+     else if(~active0_next & ~active1_next)
+       cross_int <= cross;
+   
+endmodule // crossbar36
diff --git a/fpga/usrp2/fifo/dsp_framer36.v b/fpga/usrp2/fifo/dsp_framer36.v
new file mode 100644
index 000000000..34a05d91e
--- /dev/null
+++ b/fpga/usrp2/fifo/dsp_framer36.v
@@ -0,0 +1,98 @@
+
+// Frame DSP packets with a header line to be handled by the protocol machine
+
+module dsp_framer36
+    #(parameter BUF_SIZE = 9)
+    (
+        input clk, input rst, input clr,
+        input [35:0] inp_data, input inp_valid, output inp_ready,
+        output [35:0] out_data, output out_valid, input out_ready
+    );
+
+    localparam DSP_FRM_STATE_WAIT_SOF = 0;
+    localparam DSP_FRM_STATE_WAIT_EOF = 1;
+    localparam DSP_FRM_STATE_WRITE_HDR = 2;
+    localparam DSP_FRM_STATE_WRITE = 3;
+
+    reg [1:0] dsp_frm_state;
+    reg [BUF_SIZE-1:0] dsp_frm_addr;
+    reg [BUF_SIZE-1:0] dsp_frm_count;
+    wire [BUF_SIZE-1:0] dsp_frm_addr_next = dsp_frm_addr + 1'b1;
+
+    //DSP input stream ready in the following states
+    assign inp_ready = (
+        dsp_frm_state == DSP_FRM_STATE_WAIT_SOF ||
+        dsp_frm_state == DSP_FRM_STATE_WAIT_EOF
+    )? 1'b1 : 1'b0;
+
+    //DSP framer output data mux (header or BRAM):
+    //The header is generated here from the count.
+    wire [31:0] dsp_frm_data_bram;
+    wire [15:0] dsp_frm_bytes = {dsp_frm_count, 2'b00};
+    assign out_data =
+        (dsp_frm_state == DSP_FRM_STATE_WRITE_HDR)? {4'b0001, 16'b1, dsp_frm_bytes} : (
+        (dsp_frm_addr == dsp_frm_count)           ? {4'b0010, dsp_frm_data_bram}    : (
+    {4'b0000, dsp_frm_data_bram}));
+    assign out_valid = (
+        (dsp_frm_state == DSP_FRM_STATE_WRITE_HDR) ||
+        (dsp_frm_state == DSP_FRM_STATE_WRITE)
+    )? 1'b1 : 1'b0;
+
+    RAMB16_S36_S36 dsp_frm_buff(
+        //port A = DSP input interface (writes to BRAM)
+        .DOA(),.ADDRA(dsp_frm_addr),.CLKA(clk),.DIA(inp_data[31:0]),.DIPA(4'h0),
+        .ENA(inp_ready & inp_valid),.SSRA(0),.WEA(inp_ready & inp_valid),
+        //port B = DSP framer interface (reads from BRAM)
+        .DOB(dsp_frm_data_bram),.ADDRB(dsp_frm_addr),.CLKB(clk),.DIB(36'b0),.DIPB(4'h0),
+        .ENB(out_ready & out_valid),.SSRB(0),.WEB(1'b0)
+    );
+
+    always @(posedge clk)
+    if(rst | clr) begin
+        dsp_frm_state <= DSP_FRM_STATE_WAIT_SOF;
+        dsp_frm_addr <= 0;
+    end
+    else begin
+        case(dsp_frm_state)
+        DSP_FRM_STATE_WAIT_SOF: begin
+            if (inp_ready & inp_valid & inp_data[32]) begin
+                dsp_frm_addr <= dsp_frm_addr_next;
+                dsp_frm_state <= DSP_FRM_STATE_WAIT_EOF;
+            end
+        end
+
+        DSP_FRM_STATE_WAIT_EOF: begin
+            if (inp_ready & inp_valid) begin
+                if (inp_data[33]) begin
+                    dsp_frm_count <= dsp_frm_addr_next;
+                    dsp_frm_addr <= 0;
+                    dsp_frm_state <= DSP_FRM_STATE_WRITE_HDR;
+                end
+                else begin
+                    dsp_frm_addr <= dsp_frm_addr_next;
+                end
+            end
+        end
+
+        DSP_FRM_STATE_WRITE_HDR: begin
+            if (out_ready & out_valid) begin
+                dsp_frm_addr <= dsp_frm_addr_next;
+                dsp_frm_state <= DSP_FRM_STATE_WRITE;
+            end
+        end
+
+        DSP_FRM_STATE_WRITE: begin
+            if (out_ready & out_valid) begin
+                if (out_data[33]) begin
+                    dsp_frm_addr <= 0;
+                    dsp_frm_state <= DSP_FRM_STATE_WAIT_SOF;
+                end
+                else begin
+                    dsp_frm_addr <= dsp_frm_addr_next;
+                end
+            end
+        end
+        endcase //dsp_frm_state
+    end
+
+endmodule //dsp_framer36
diff --git a/fpga/usrp2/fifo/packet_router.v b/fpga/usrp2/fifo/packet_router.v
new file mode 100644
index 000000000..161b59016
--- /dev/null
+++ b/fpga/usrp2/fifo/packet_router.v
@@ -0,0 +1,535 @@
+module packet_router
+    #(
+        parameter BUF_SIZE = 9,
+        parameter UDP_BASE = 0,
+        parameter CTRL_BASE = 0
+    )
+    (
+        //wishbone interface for memory mapped CPU frames
+        input wb_clk_i,
+        input wb_rst_i,
+        input wb_we_i,
+        input wb_stb_i,
+        input [15:0] wb_adr_i,
+        input [31:0] wb_dat_i,
+        output [31:0] wb_dat_o,
+        output wb_ack_o,
+        output wb_err_o,
+        output wb_rty_o,
+
+        //setting register interface
+        input set_stb, input [7:0] set_addr, input [31:0] set_data,
+
+        input stream_clk,
+        input stream_rst,
+        input stream_clr,
+
+        //output status register
+        output [31:0] status,
+
+        output sys_int_o, //want an interrupt?
+
+        output [31:0] debug,
+
+        // Input Interfaces (in to router)
+        input [35:0] ser_inp_data, input ser_inp_valid, output ser_inp_ready,
+        input [35:0] dsp_inp_data, input dsp_inp_valid, output dsp_inp_ready,
+        input [35:0] eth_inp_data, input eth_inp_valid, output eth_inp_ready,
+        input [35:0] err_inp_data, input err_inp_valid, output err_inp_ready,
+
+        // Output Interfaces (out of router)
+        output [35:0] ser_out_data, output ser_out_valid, input ser_out_ready,
+        output [35:0] dsp_out_data, output dsp_out_valid, input dsp_out_ready,
+        output [35:0] eth_out_data, output eth_out_valid, input eth_out_ready
+    );
+
+    assign wb_err_o = 1'b0;  // Unused for now
+    assign wb_rty_o = 1'b0;  // Unused for now
+
+    ////////////////////////////////////////////////////////////////////
+    // CPU interface to this packet router
+    ////////////////////////////////////////////////////////////////////
+    wire [35:0] cpu_inp_data,  cpu_out_data;
+    wire        cpu_inp_valid, cpu_out_valid;
+    wire        cpu_inp_ready, cpu_out_ready;
+
+    ////////////////////////////////////////////////////////////////////
+    // Communication interfaces
+    ////////////////////////////////////////////////////////////////////
+    wire [35:0] com_inp_data,  com_out_data,  udp_out_data;
+    wire        com_inp_valid, com_out_valid, udp_out_valid;
+    wire        com_inp_ready, com_out_ready, udp_out_ready;
+
+    ////////////////////////////////////////////////////////////////////
+    // Control signals (setting registers and status signals)
+    //    - handshake lines for the CPU communication
+    //    - setting registers to program the inspector
+    ////////////////////////////////////////////////////////////////////
+
+    //setting register for mode control
+    wire [31:0] _sreg_mode_ctrl;
+    setting_reg #(.my_addr(CTRL_BASE+0), .width(1)) sreg_mode_ctrl(
+        .clk(stream_clk),.rst(stream_rst),
+        .strobe(set_stb),.addr(set_addr),.in(set_data),
+        .out(master_mode_flag),.changed()
+    );
+
+    //setting register to program the IP address
+    wire [31:0] my_ip_addr;
+    setting_reg #(.my_addr(CTRL_BASE+1)) sreg_ip_addr(
+        .clk(stream_clk),.rst(stream_rst),
+        .strobe(set_stb),.addr(set_addr),.in(set_data),
+        .out(my_ip_addr),.changed()
+    );
+
+    //setting register to program the UDP data ports
+    wire [15:0] dsp0_udp_port, dsp1_udp_port;
+    setting_reg #(.my_addr(CTRL_BASE+2)) sreg_data_ports(
+        .clk(stream_clk),.rst(stream_rst),
+        .strobe(set_stb),.addr(set_addr),.in(set_data),
+        .out({dsp1_udp_port, dsp0_udp_port}),.changed()
+    );
+
+    //assign status output signals
+    wire [31:0] cpu_iface_status;
+    assign status = {
+        cpu_iface_status[31:9], master_mode_flag, cpu_iface_status[7:0]
+    };
+
+    ////////////////////////////////////////////////////////////////////
+    // Communication input source crossbar
+    // When in master mode:
+    //   - serdes input -> comm output combiner
+    //   - ethernet input -> comm input inspector
+    // When in slave mode:
+    //   - serdes input -> comm input inspector
+    //   - ethernet input -> null sink
+    ////////////////////////////////////////////////////////////////////
+
+    //streaming signals from the crossbar to the combiner
+    wire [35:0] ext_inp_data;
+    wire        ext_inp_valid;
+    wire        ext_inp_ready;
+
+    //dummy signals for valve/xbar below
+    wire [35:0] _eth_inp_data;
+    wire        _eth_inp_valid;
+    wire        _eth_inp_ready;
+
+    valve36 eth_inp_valve (
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr), .shutoff(~master_mode_flag),
+        .data_i(eth_inp_data), .src_rdy_i(eth_inp_valid), .dst_rdy_o(eth_inp_ready),
+        .data_o(_eth_inp_data), .src_rdy_o(_eth_inp_valid), .dst_rdy_i(_eth_inp_ready)
+    );
+
+    crossbar36 com_inp_xbar (
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr), .cross(~master_mode_flag),
+        .data0_i(_eth_inp_data), .src0_rdy_i(_eth_inp_valid), .dst0_rdy_o(_eth_inp_ready),
+        .data1_i(ser_inp_data), .src1_rdy_i(ser_inp_valid), .dst1_rdy_o(ser_inp_ready),
+        .data0_o(com_inp_data), .src0_rdy_o(com_inp_valid), .dst0_rdy_i(com_inp_ready),
+        .data1_o(ext_inp_data), .src1_rdy_o(ext_inp_valid), .dst1_rdy_i(ext_inp_ready)
+    );
+
+    ////////////////////////////////////////////////////////////////////
+    // Communication output sink crossbar
+    // When in master mode:
+    //   - comm output -> ethernet output
+    //   - insp output -> serdes output
+    // When in slave mode:
+    //   - com output -> serdes output
+    //   - insp output -> null sink
+    ////////////////////////////////////////////////////////////////////
+
+    //streaming signals from the inspector to the crossbar
+    wire [35:0] ext_out_data;
+    wire        ext_out_valid;
+    wire        ext_out_ready;
+
+    //dummy signals for valve/xbar below
+    wire [35:0] _eth_out_data;
+    wire        _eth_out_valid;
+    wire        _eth_out_ready;
+
+    crossbar36 com_out_xbar (
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr), .cross(~master_mode_flag),
+        .data0_i(com_out_data), .src0_rdy_i(com_out_valid), .dst0_rdy_o(com_out_ready),
+        .data1_i(ext_out_data), .src1_rdy_i(ext_out_valid), .dst1_rdy_o(ext_out_ready),
+        .data0_o(_eth_out_data), .src0_rdy_o(_eth_out_valid), .dst0_rdy_i(_eth_out_ready),
+        .data1_o(ser_out_data), .src1_rdy_o(ser_out_valid), .dst1_rdy_i(ser_out_ready)
+    );
+
+    valve36 eth_out_valve (
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr), .shutoff(~master_mode_flag),
+        .data_i(_eth_out_data), .src_rdy_i(_eth_out_valid), .dst_rdy_o(_eth_out_ready),
+        .data_o(eth_out_data), .src_rdy_o(eth_out_valid), .dst_rdy_i(eth_out_ready)
+    );
+
+    ////////////////////////////////////////////////////////////////////
+    // Communication output source combiner (feeds UDP proto machine)
+    //   - DSP framer
+    //   - CPU input
+    //   - ERR input
+    ////////////////////////////////////////////////////////////////////
+
+    //streaming signals from the dsp framer to the combiner
+    wire [35:0] dsp_frm_data;
+    wire        dsp_frm_valid;
+    wire        dsp_frm_ready;
+
+    //dummy signals to join the the muxes below
+    wire [35:0] _combiner0_data, _combiner1_data;
+    wire        _combiner0_valid, _combiner1_valid;
+    wire        _combiner0_ready, _combiner1_ready;
+
+    fifo36_mux _com_output_combiner0(
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+        .data0_i(dsp_frm_data), .src0_rdy_i(dsp_frm_valid), .dst0_rdy_o(dsp_frm_ready),
+        .data1_i(err_inp_data), .src1_rdy_i(err_inp_valid), .dst1_rdy_o(err_inp_ready),
+        .data_o(_combiner0_data), .src_rdy_o(_combiner0_valid), .dst_rdy_i(_combiner0_ready)
+    );
+
+    fifo36_mux _com_output_combiner1(
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+        .data0_i(32'b0), .src0_rdy_i(1'b0), .dst0_rdy_o(), //mux out from dsp1 can go here
+        .data1_i(cpu_inp_data), .src1_rdy_i(cpu_inp_valid), .dst1_rdy_o(cpu_inp_ready),
+        .data_o(_combiner1_data), .src_rdy_o(_combiner1_valid), .dst_rdy_i(_combiner1_ready)
+    );
+
+    fifo36_mux com_output_source(
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+        .data0_i(_combiner0_data), .src0_rdy_i(_combiner0_valid), .dst0_rdy_o(_combiner0_ready),
+        .data1_i(_combiner1_data), .src1_rdy_i(_combiner1_valid), .dst1_rdy_o(_combiner1_ready),
+        .data_o(udp_out_data), .src_rdy_o(udp_out_valid), .dst_rdy_i(udp_out_ready)
+    );
+
+    ////////////////////////////////////////////////////////////////////
+    // Interface CPU to memory mapped wishbone
+    ////////////////////////////////////////////////////////////////////
+    buffer_int2 #(.BASE(CTRL_BASE+3), .BUF_SIZE(BUF_SIZE)) cpu_to_wb(
+        .clk(stream_clk), .rst(stream_rst | stream_clr),
+        .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
+        .status(cpu_iface_status),
+        // Wishbone interface to RAM
+        .wb_clk_i(wb_clk_i), .wb_rst_i(wb_rst_i),
+        .wb_we_i(wb_we_i),   .wb_stb_i(wb_stb_i),
+        .wb_adr_i(wb_adr_i), .wb_dat_i(wb_dat_i),
+        .wb_dat_o(wb_dat_o), .wb_ack_o(wb_ack_o),
+        // Write FIFO Interface (from PR and into WB)
+        .wr_data_i(cpu_out_data),
+        .wr_ready_i(cpu_out_valid),
+        .wr_ready_o(cpu_out_ready),
+        // Read FIFO Interface (from WB and into PR)
+        .rd_data_o(cpu_inp_data),
+        .rd_ready_o(cpu_inp_valid),
+        .rd_ready_i(cpu_inp_ready)
+    );
+
+    ////////////////////////////////////////////////////////////////////
+    // Communication input inspector
+    //   - inspect com input and send it to DSP, EXT, CPU, or BOTH
+    ////////////////////////////////////////////////////////////////////
+    localparam COM_INSP_STATE_READ_COM_PRE = 0;
+    localparam COM_INSP_STATE_READ_COM = 1;
+    localparam COM_INSP_STATE_WRITE_REGS = 2;
+    localparam COM_INSP_STATE_WRITE_LIVE = 3;
+
+    localparam COM_INSP_DEST_DSP = 0;
+    localparam COM_INSP_DEST_EXT = 1;
+    localparam COM_INSP_DEST_CPU = 2;
+    localparam COM_INSP_DEST_BOF = 3;
+
+    localparam COM_INSP_MAX_NUM_DREGS = 13; //padded_eth + ip + udp + seq + vrt_hdr
+    localparam COM_INSP_DREGS_DSP_OFFSET = 11; //offset to start dsp at
+
+    //output inspector interfaces
+    wire [35:0] com_insp_out_dsp_data;
+    wire        com_insp_out_dsp_valid;
+    wire        com_insp_out_dsp_ready;
+
+    wire [35:0] com_insp_out_ext_data;
+    wire        com_insp_out_ext_valid;
+    wire        com_insp_out_ext_ready;
+
+    wire [35:0] com_insp_out_cpu_data;
+    wire        com_insp_out_cpu_valid;
+    wire        com_insp_out_cpu_ready;
+
+    wire [35:0] com_insp_out_bof_data;
+    wire        com_insp_out_bof_valid;
+    wire        com_insp_out_bof_ready;
+
+    //connect this fast-path signals directly to the DSP out
+    assign dsp_out_data = com_insp_out_dsp_data;
+    assign dsp_out_valid = com_insp_out_dsp_valid;
+    assign com_insp_out_dsp_ready = dsp_out_ready;
+
+    reg [1:0] com_insp_state;
+    reg [1:0] com_insp_dest;
+    reg [3:0] com_insp_dreg_count; //data registers to buffer headers
+    wire [3:0] com_insp_dreg_count_next = com_insp_dreg_count + 1'b1;
+    wire com_insp_dreg_counter_done = (com_insp_dreg_count_next == COM_INSP_MAX_NUM_DREGS)? 1'b1 : 1'b0;
+    reg [35:0] com_insp_dregs [COM_INSP_MAX_NUM_DREGS-1:0];
+
+    //extract various packet components:
+    wire [47:0] com_insp_dregs_eth_dst_mac   = {com_insp_dregs[0][15:0], com_insp_dregs[1][31:0]};
+    wire [15:0] com_insp_dregs_eth_type      = com_insp_dregs[3][15:0];
+    wire [7:0]  com_insp_dregs_ipv4_proto    = com_insp_dregs[6][23:16];
+    wire [31:0] com_insp_dregs_ipv4_dst_addr = com_insp_dregs[8][31:0];
+    wire [15:0] com_insp_dregs_udp_dst_port  = com_insp_dregs[9][15:0];
+    wire [15:0] com_insp_dregs_vrt_size      = com_inp_data[15:0];
+
+    //Inspector output flags special case:
+    //Inject SOF into flags at first DSP line.
+    wire [3:0] com_insp_out_flags = (
+        (com_insp_dreg_count == COM_INSP_DREGS_DSP_OFFSET) &&
+        (com_insp_dest == COM_INSP_DEST_DSP)
+    )? 4'b0001 : com_insp_dregs[com_insp_dreg_count][35:32];
+
+    //The communication inspector ouput data and valid signals:
+    //Mux between com input and data registers based on the state.
+    wire [35:0] com_insp_out_data = (com_insp_state == COM_INSP_STATE_WRITE_REGS)?
+        {com_insp_out_flags, com_insp_dregs[com_insp_dreg_count][31:0]} : com_inp_data
+    ;
+    wire com_insp_out_valid =
+        (com_insp_state == COM_INSP_STATE_WRITE_REGS)? 1'b1          : (
+        (com_insp_state == COM_INSP_STATE_WRITE_LIVE)? com_inp_valid : (
+    1'b0));
+
+    //The communication inspector ouput ready signal:
+    //Mux between the various destination ready signals.
+    wire com_insp_out_ready =
+        (com_insp_dest == COM_INSP_DEST_DSP)? com_insp_out_dsp_ready : (
+        (com_insp_dest == COM_INSP_DEST_EXT)? com_insp_out_ext_ready : (
+        (com_insp_dest == COM_INSP_DEST_CPU)? com_insp_out_cpu_ready : (
+        (com_insp_dest == COM_INSP_DEST_BOF)? com_insp_out_bof_ready : (
+    1'b0))));
+
+    //Always connected output data lines.
+    assign com_insp_out_dsp_data = com_insp_out_data;
+    assign com_insp_out_ext_data = com_insp_out_data;
+    assign com_insp_out_cpu_data = com_insp_out_data;
+    assign com_insp_out_bof_data = com_insp_out_data;
+
+    //Destination output valid signals:
+    //Comes from inspector valid when destination is selected, and otherwise low.
+    assign com_insp_out_dsp_valid = (com_insp_dest == COM_INSP_DEST_DSP)? com_insp_out_valid : 1'b0;
+    assign com_insp_out_ext_valid = (com_insp_dest == COM_INSP_DEST_EXT)? com_insp_out_valid : 1'b0;
+    assign com_insp_out_cpu_valid = (com_insp_dest == COM_INSP_DEST_CPU)? com_insp_out_valid : 1'b0;
+    assign com_insp_out_bof_valid = (com_insp_dest == COM_INSP_DEST_BOF)? com_insp_out_valid : 1'b0;
+
+    //The communication inspector ouput ready signal:
+    //Always ready when storing to data registers,
+    //comes from inspector ready output when live,
+    //and otherwise low.
+    assign com_inp_ready =
+        (com_insp_state == COM_INSP_STATE_READ_COM_PRE)  ? 1'b1               : (
+        (com_insp_state == COM_INSP_STATE_READ_COM)      ? 1'b1               : (
+        (com_insp_state == COM_INSP_STATE_WRITE_LIVE)    ? com_insp_out_ready : (
+    1'b0)));
+
+    always @(posedge stream_clk)
+    if(stream_rst | stream_clr) begin
+        com_insp_state <= COM_INSP_STATE_READ_COM_PRE;
+        com_insp_dreg_count <= 0;
+    end
+    else begin
+        case(com_insp_state)
+        COM_INSP_STATE_READ_COM_PRE: begin
+            if (com_inp_ready & com_inp_valid & com_inp_data[32]) begin
+                com_insp_state <= COM_INSP_STATE_READ_COM;
+                com_insp_dreg_count <= com_insp_dreg_count_next;
+                com_insp_dregs[com_insp_dreg_count] <= com_inp_data;
+            end
+        end
+
+        COM_INSP_STATE_READ_COM: begin
+            if (com_inp_ready & com_inp_valid) begin
+                com_insp_dregs[com_insp_dreg_count] <= com_inp_data;
+                if (com_insp_dreg_counter_done | com_inp_data[33]) begin
+                    com_insp_state <= COM_INSP_STATE_WRITE_REGS;
+                    com_insp_dreg_count <= 0;
+
+                    //---------- begin inspection decision -----------//
+                    //EOF or bcast or not IPv4 or not UDP:
+                    if (
+                        com_inp_data[33] || (com_insp_dregs_eth_dst_mac == 48'hffffffffffff) ||
+                        (com_insp_dregs_eth_type != 16'h800) || (com_insp_dregs_ipv4_proto != 8'h11)
+                    ) begin
+                        com_insp_dest <= COM_INSP_DEST_BOF;
+                    end
+
+                    //not my IP address:
+                    else if (com_insp_dregs_ipv4_dst_addr != my_ip_addr) begin
+                        com_insp_dest <= COM_INSP_DEST_EXT;
+                    end
+
+                    //UDP data port and VRT:
+                    else if ((com_insp_dregs_udp_dst_port == dsp0_udp_port) && (com_insp_dregs_vrt_size != 16'h0)) begin
+                        com_insp_dest <= COM_INSP_DEST_DSP;
+                        com_insp_dreg_count <= COM_INSP_DREGS_DSP_OFFSET;
+                    end
+
+                    //other:
+                    else begin
+                        com_insp_dest <= COM_INSP_DEST_CPU;
+                    end
+                    //---------- end inspection decision -------------//
+
+                end
+                else begin
+                    com_insp_dreg_count <= com_insp_dreg_count_next;
+                end
+            end
+        end
+
+        COM_INSP_STATE_WRITE_REGS: begin
+            if (com_insp_out_ready & com_insp_out_valid) begin
+                if (com_insp_out_data[33]) begin
+                    com_insp_state <= COM_INSP_STATE_READ_COM_PRE;
+                    com_insp_dreg_count <= 0;
+                end
+                else if (com_insp_dreg_counter_done) begin
+                    com_insp_state <= COM_INSP_STATE_WRITE_LIVE;
+                    com_insp_dreg_count <= 0;
+                end
+                else begin
+                    com_insp_dreg_count <= com_insp_dreg_count_next;
+                end
+            end
+        end
+
+        COM_INSP_STATE_WRITE_LIVE: begin
+            if (com_insp_out_ready & com_insp_out_valid & com_insp_out_data[33]) begin
+                com_insp_state <= COM_INSP_STATE_READ_COM_PRE;
+            end
+        end
+
+        endcase //com_insp_state
+    end
+
+    ////////////////////////////////////////////////////////////////////
+    // Splitter and output muxes for the bof packets
+    //   - split the bof packets into two streams
+    //   - mux split packets into cpu out and ext out
+    ////////////////////////////////////////////////////////////////////
+
+    //dummy signals to join the the splitter and muxes below
+    wire [35:0] _split_to_ext_data,  _split_to_cpu_data,  _cpu_out_data;
+    wire        _split_to_ext_valid, _split_to_cpu_valid, _cpu_out_valid;
+    wire        _split_to_ext_ready, _split_to_cpu_ready, _cpu_out_ready;
+
+    splitter36 bof_out_splitter(
+        .clk(stream_clk), .rst(stream_rst), .clr(stream_clr),
+        .inp_data(com_insp_out_bof_data), .inp_valid(com_insp_out_bof_valid), .inp_ready(com_insp_out_bof_ready),
+        .out0_data(_split_to_ext_data),   .out0_valid(_split_to_ext_valid),   .out0_ready(_split_to_ext_ready),
+        .out1_data(_split_to_cpu_data),   .out1_valid(_split_to_cpu_valid),   .out1_ready(_split_to_cpu_ready)
+    );
+
+    fifo36_mux ext_out_mux(
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+        .data0_i(com_insp_out_ext_data), .src0_rdy_i(com_insp_out_ext_valid), .dst0_rdy_o(com_insp_out_ext_ready),
+        .data1_i(_split_to_ext_data),    .src1_rdy_i(_split_to_ext_valid),    .dst1_rdy_o(_split_to_ext_ready),
+        .data_o(ext_out_data),           .src_rdy_o(ext_out_valid),           .dst_rdy_i(ext_out_ready)
+    );
+
+    fifo36_mux cpu_out_mux(
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+        .data0_i(com_insp_out_cpu_data), .src0_rdy_i(com_insp_out_cpu_valid), .dst0_rdy_o(com_insp_out_cpu_ready),
+        .data1_i(_split_to_cpu_data),    .src1_rdy_i(_split_to_cpu_valid),    .dst1_rdy_o(_split_to_cpu_ready),
+        .data_o(_cpu_out_data),          .src_rdy_o(_cpu_out_valid),          .dst_rdy_i(_cpu_out_ready)
+    );
+
+    fifo_cascade #(.WIDTH(36), .SIZE(9/*512 lines plenty for short pkts*/)) cpu_out_fifo (
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+        .datain(_cpu_out_data), .src_rdy_i(_cpu_out_valid), .dst_rdy_o(_cpu_out_ready),
+        .dataout(cpu_out_data), .src_rdy_o(cpu_out_valid),  .dst_rdy_i(cpu_out_ready)
+    );
+
+    ////////////////////////////////////////////////////////////////////
+    // DSP input framer
+    ////////////////////////////////////////////////////////////////////
+
+    dsp_framer36 #(.BUF_SIZE(BUF_SIZE)) dsp0_framer36(
+        .clk(stream_clk), .rst(stream_rst), .clr(stream_clr),
+        .inp_data(dsp_inp_data), .inp_valid(dsp_inp_valid), .inp_ready(dsp_inp_ready),
+        .out_data(dsp_frm_data), .out_valid(dsp_frm_valid), .out_ready(dsp_frm_ready)
+    );
+
+    ////////////////////////////////////////////////////////////////////
+    // UDP TX Protocol machine
+    ////////////////////////////////////////////////////////////////////
+
+    //dummy signals to connect the components below
+    wire [18:0] _udp_r2s_data, _udp_s2p_data, _udp_p2s_data, _udp_s2r_data;
+    wire _udp_r2s_valid, _udp_s2p_valid, _udp_p2s_valid, _udp_s2r_valid;
+    wire _udp_r2s_ready, _udp_s2p_ready, _udp_p2s_ready, _udp_s2r_ready;
+
+    wire [35:0] _com_out_data;
+    wire _com_out_valid, _com_out_ready;
+
+    fifo36_to_fifo19 udp_fifo36_to_fifo19
+     (.clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+      .f36_datain(udp_out_data),   .f36_src_rdy_i(udp_out_valid),  .f36_dst_rdy_o(udp_out_ready),
+      .f19_dataout(_udp_r2s_data), .f19_src_rdy_o(_udp_r2s_valid), .f19_dst_rdy_i(_udp_r2s_ready) );
+
+    fifo_short #(.WIDTH(19)) udp_shortfifo19_inp
+     (.clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+      .datain(_udp_r2s_data),  .src_rdy_i(_udp_r2s_valid), .dst_rdy_o(_udp_r2s_ready),
+      .dataout(_udp_s2p_data), .src_rdy_o(_udp_s2p_valid), .dst_rdy_i(_udp_s2p_ready),
+      .space(), .occupied() );
+
+    prot_eng_tx #(.BASE(UDP_BASE)) udp_prot_eng_tx
+     (.clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+      .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
+      .datain(_udp_s2p_data),  .src_rdy_i(_udp_s2p_valid), .dst_rdy_o(_udp_s2p_ready),
+      .dataout(_udp_p2s_data), .src_rdy_o(_udp_p2s_valid), .dst_rdy_i(_udp_p2s_ready) );
+
+    fifo_short #(.WIDTH(19)) udp_shortfifo19_out
+     (.clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+      .datain(_udp_p2s_data),  .src_rdy_i(_udp_p2s_valid), .dst_rdy_o(_udp_p2s_ready),
+      .dataout(_udp_s2r_data), .src_rdy_o(_udp_s2r_valid), .dst_rdy_i(_udp_s2r_ready),
+      .space(), .occupied() );
+
+    fifo19_to_fifo36 udp_fifo19_to_fifo36
+     (.clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+      .f19_datain(_udp_s2r_data), .f19_src_rdy_i(_udp_s2r_valid), .f19_dst_rdy_o(_udp_s2r_ready),
+      .f36_dataout(_com_out_data), .f36_src_rdy_o(_com_out_valid),  .f36_dst_rdy_i(_com_out_ready) );
+
+    fifo36_mux com_out_mux(
+        .clk(stream_clk), .reset(stream_rst), .clear(stream_clr),
+        .data0_i(ext_inp_data),  .src0_rdy_i(ext_inp_valid),  .dst0_rdy_o(ext_inp_ready),
+        .data1_i(_com_out_data), .src1_rdy_i(_com_out_valid), .dst1_rdy_o(_com_out_ready),
+        .data_o(com_out_data),   .src_rdy_o(com_out_valid),   .dst_rdy_i(com_out_ready)
+    );
+
+    ////////////////////////////////////////////////////////////////////
+    // Assign debugs
+    ////////////////////////////////////////////////////////////////////
+
+    assign debug = {
+        //inputs to the router (8)
+        dsp_inp_ready, dsp_inp_valid,
+        ser_inp_ready, ser_inp_valid,
+        eth_inp_ready, eth_inp_valid,
+        cpu_inp_ready, cpu_inp_valid,
+
+        //outputs from the router (8)
+        dsp_out_ready, dsp_out_valid,
+        ser_out_ready, ser_out_valid,
+        eth_out_ready, eth_out_valid,
+        cpu_out_ready, cpu_out_valid,
+
+        //inspector interfaces (8)
+        com_insp_out_dsp_ready, com_insp_out_dsp_valid,
+        com_insp_out_ext_ready, com_insp_out_ext_valid,
+        com_insp_out_cpu_ready, com_insp_out_cpu_valid,
+        com_insp_out_bof_ready, com_insp_out_bof_valid,
+
+        //other interfaces (8)
+        ext_inp_ready, ext_inp_valid,
+        com_out_ready, com_out_valid,
+        ext_out_ready, ext_out_valid,
+        com_inp_ready, com_inp_valid
+    };
+
+endmodule // packet_router
diff --git a/fpga/usrp2/fifo/splitter36.v b/fpga/usrp2/fifo/splitter36.v
new file mode 100644
index 000000000..ed998b4f5
--- /dev/null
+++ b/fpga/usrp2/fifo/splitter36.v
@@ -0,0 +1,68 @@
+
+// Split packets from a fifo based interface so it goes out identically on two interfaces
+
+module splitter36
+    (
+        input clk, input rst, input clr,
+        input [35:0] inp_data, input inp_valid, output inp_ready,
+        output [35:0] out0_data, output out0_valid, input out0_ready,
+        output [35:0] out1_data, output out1_valid, input out1_ready
+    );
+
+    localparam STATE_COPY_BOTH = 0;
+    localparam STATE_COPY_ZERO = 1;
+    localparam STATE_COPY_ONE = 2;
+
+    reg [1:0] state;
+    reg [35:0] data_reg;
+
+    assign out0_data = (state == STATE_COPY_BOTH)? inp_data : data_reg;
+    assign out1_data = (state == STATE_COPY_BOTH)? inp_data : data_reg;
+
+    assign out0_valid =
+        (state == STATE_COPY_BOTH)? inp_valid : (
+        (state == STATE_COPY_ZERO)? 1'b1      : (
+    1'b0));
+
+    assign out1_valid =
+        (state == STATE_COPY_BOTH)? inp_valid : (
+        (state == STATE_COPY_ONE)?  1'b1      : (
+    1'b0));
+
+    assign inp_ready = (state == STATE_COPY_BOTH)? (out0_ready | out1_ready) : 1'b0;
+
+    always @(posedge clk)
+    if (rst | clr) begin
+        state <= STATE_COPY_BOTH;
+    end
+    else begin
+        case (state)
+
+        STATE_COPY_BOTH: begin
+            if ((out0_valid & out0_ready) & ~(out1_valid & out1_ready)) begin
+                state <= STATE_COPY_ONE;
+            end
+            else if (~(out0_valid & out0_ready) & (out1_valid & out1_ready)) begin
+                state <= STATE_COPY_ZERO;
+            end
+            data_reg <= inp_data;
+        end
+
+        STATE_COPY_ZERO: begin
+            if (out0_valid & out0_ready) begin
+                state <= STATE_COPY_BOTH;
+            end
+        end
+
+        STATE_COPY_ONE: begin
+            if (out1_valid & out1_ready) begin
+                state <= STATE_COPY_BOTH;
+            end
+        end
+
+        endcase //state
+    end
+
+
+
+endmodule //splitter36
diff --git a/fpga/usrp2/fifo/valve36.v b/fpga/usrp2/fifo/valve36.v
new file mode 100644
index 000000000..d45eee497
--- /dev/null
+++ b/fpga/usrp2/fifo/valve36.v
@@ -0,0 +1,29 @@
+
+
+module valve36
+  (input clk, input reset, input clear,
+   input shutoff,
+   input [35:0] data_i, input src_rdy_i, output dst_rdy_o,
+   output [35:0] data_o, output src_rdy_o, input dst_rdy_i);
+   
+   reg 		 shutoff_int, active;
+   wire active_next = (src_rdy_i & dst_rdy_o)? ~data_i[33] : active;
+
+   assign data_o = data_i;
+
+   assign dst_rdy_o = shutoff_int ? 1'b1 : dst_rdy_i;
+   assign src_rdy_o = shutoff_int ? 1'b0 : src_rdy_i;
+   
+   always @(posedge clk)
+     if(reset | clear)
+       active <= 0;
+     else
+       active <= active_next;
+   
+   always @(posedge clk)
+     if(reset | clear)
+       shutoff_int <= 0;
+     else if(~active_next)
+       shutoff_int <= shutoff;
+   
+endmodule // valve36
diff --git a/fpga/usrp2/opencores/Makefile.srcs b/fpga/usrp2/opencores/Makefile.srcs
index 284578b39..838b1b813 100644
--- a/fpga/usrp2/opencores/Makefile.srcs
+++ b/fpga/usrp2/opencores/Makefile.srcs
@@ -25,4 +25,12 @@ spi/rtl/verilog/spi_defines.v \
 spi/rtl/verilog/spi_shift.v \
 spi/rtl/verilog/spi_top.v \
 spi/rtl/verilog/spi_top16.v \
+zpu/zpu_top_pkg.vhd \
+zpu/zpu_wb_top.vhd \
+zpu/wishbone/wishbone_pkg.vhd \
+zpu/wishbone/zpu_system.vhd \
+zpu/wishbone/zpu_wb_bridge.vhd \
+zpu/core/zpu_config.vhd \
+zpu/core/zpu_core.vhd \
+zpu/core/zpupkg.vhd \
 ))
diff --git a/fpga/usrp2/opencores/zpu/core/zpu_config.vhd b/fpga/usrp2/opencores/zpu/core/zpu_config.vhd
new file mode 100644
index 000000000..b7e894232
--- /dev/null
+++ b/fpga/usrp2/opencores/zpu/core/zpu_config.vhd
@@ -0,0 +1,15 @@
+library ieee;

+use ieee.std_logic_1164.all;

+use ieee.std_logic_unsigned.all;

+

+package zpu_config is

+	-- generate trace output or not.

+	constant	Generate_Trace		: boolean := false;

+	constant 	wordPower			: integer := 5;

+	-- during simulation, set this to '0' to get matching trace.txt 

+	constant	DontCareValue		: std_logic := '0';

+	-- Clock frequency in MHz.

+	constant	ZPU_Frequency		: std_logic_vector(7 downto 0) := x"40";

+	-- This is the msb address bit. bytes=2^(maxAddrBitIncIO+1)

+	constant 	maxAddrBitIncIO		: integer := 15;

+end zpu_config;

diff --git a/fpga/usrp2/opencores/zpu/core/zpu_core.vhd b/fpga/usrp2/opencores/zpu/core/zpu_core.vhd
new file mode 100644
index 000000000..24586b2f6
--- /dev/null
+++ b/fpga/usrp2/opencores/zpu/core/zpu_core.vhd
@@ -0,0 +1,949 @@
+
+-- Company: ZPU4 generic memory interface CPU
+-- Engineer: Øyvind Harboe
+
+library IEEE;
+use IEEE.STD_LOGIC_1164.ALL;
+use IEEE.STD_LOGIC_UNSIGNED.ALL;
+use IEEE.STD_LOGIC_arith.ALL;
+
+library work;
+use work.zpu_config.all;
+use work.zpupkg.all;
+
+
+
+
+
+entity zpu_core is
+    Port ( clk : in std_logic;
+	 		  areset : in std_logic;
+	 		  enable : in std_logic; 
+	 		  mem_req : out std_logic;
+	 		  mem_we : out std_logic;
+	 		  mem_ack : in std_logic; 
+	 		  mem_read : in std_logic_vector(wordSize-1 downto 0);
+	 		  mem_write : out std_logic_vector(wordSize-1 downto 0);
+			  out_mem_addr : out std_logic_vector(maxAddrBitIncIO downto 0);
+	 		  mem_writeMask: out std_logic_vector(wordBytes-1 downto 0);
+			  stack_start : in std_logic_vector(maxAddrBitIncIO downto 0);
+	 		  interrupt : in std_logic;
+	 		  break : out std_logic;
+	 		  zpu_status : out std_logic_vector(63 downto 0));
+end zpu_core;
+
+architecture behave of zpu_core is
+
+type InsnType is 
+(
+State_AddTop,
+State_Dup,
+State_DupStackB,
+State_Pop,
+State_Popdown,
+State_Add,
+State_Or,
+State_And,
+State_Store,
+State_AddSP,
+State_Shift,
+State_Nop,
+State_Im,
+State_LoadSP,
+State_StoreSP,
+State_Emulate,
+State_Load,
+State_PushPC,
+State_PushSP,
+State_PopPC,
+State_PopPCRel,
+State_Not,
+State_Flip,
+State_PopSP,
+State_Neqbranch,
+State_Eq,
+State_Loadb,
+State_Mult,
+State_Lessthan,
+State_Lessthanorequal,
+State_Ulessthanorequal,
+State_Ulessthan,
+State_Pushspadd,
+State_Call,
+State_Callpcrel,
+State_Sub,
+State_Break,
+State_Storeb,
+State_Interrupt,
+State_InsnFetch
+);
+
+type StateType is 
+(
+State_Idle, -- using first state first on the list out of paranoia 
+State_Load2,
+State_Popped,
+State_LoadSP2,
+State_LoadSP3,
+State_AddSP2,
+State_Fetch,
+State_Execute,
+State_Decode,
+State_Decode2,
+State_Resync,
+
+State_StoreSP2,
+State_Resync2,
+State_Resync3,
+State_Loadb2,
+State_Storeb2,
+State_Mult2,
+State_Mult3,
+State_Mult5,
+State_Mult6,
+State_Mult4,
+State_BinaryOpResult
+); 
+
+
+signal	pc				: std_logic_vector(maxAddrBitIncIO downto 0);
+signal	sp				: std_logic_vector(maxAddrBitIncIO downto minAddrBit);
+signal	incSp			: std_logic_vector(maxAddrBitIncIO downto minAddrBit);
+signal	incIncSp			: std_logic_vector(maxAddrBitIncIO downto minAddrBit);
+signal	decSp			: std_logic_vector(maxAddrBitIncIO downto minAddrBit);
+signal  stackA   		: std_logic_vector(wordSize-1 downto 0);
+signal  binaryOpResult		: std_logic_vector(wordSize-1 downto 0);
+signal  multResult2  		: std_logic_vector(wordSize-1 downto 0);
+signal  multResult3  		: std_logic_vector(wordSize-1 downto 0);
+signal  multResult  		: std_logic_vector(wordSize-1 downto 0);
+signal  multA 		: std_logic_vector(wordSize-1 downto 0);
+signal  multB  		: std_logic_vector(wordSize-1 downto 0);
+signal  stackB  		: std_logic_vector(wordSize-1 downto 0);
+signal	idim_flag			: std_logic;
+signal	busy 				: std_logic;
+signal mem_readEnable : std_logic;
+signal mem_addr : std_logic_vector(maxAddrBitIncIO downto minAddrBit);
+signal mem_delayAddr : std_logic_vector(maxAddrBitIncIO downto minAddrBit);
+signal mem_delayReadEnable : std_logic;
+signal mem_busy : std_logic;
+signal decodeWord : std_logic_vector(wordSize-1 downto 0);
+
+
+signal state : StateType;
+signal insn : InsnType;
+type InsnArray is array(0 to wordBytes-1) of InsnType;
+signal decodedOpcode : InsnArray;
+
+type OpcodeArray is array(0 to wordBytes-1) of std_logic_vector(7 downto 0);
+
+signal opcode : OpcodeArray;
+
+
+
+
+signal	begin_inst			: std_logic;
+signal trace_opcode		: std_logic_vector(7 downto 0);
+signal	trace_pc				: std_logic_vector(maxAddrBitIncIO downto 0);
+signal	trace_sp				: std_logic_vector(maxAddrBitIncIO downto minAddrBit);
+signal	trace_topOfStack				: std_logic_vector(wordSize-1 downto 0);
+signal	trace_topOfStackB				: std_logic_vector(wordSize-1 downto 0);
+
+signal	out_mem_req : std_logic;
+
+signal inInterrupt : std_logic;
+
+-- state machine.
+
+begin
+
+	zpu_status(maxAddrBitIncIO downto 0) <= trace_pc;
+	zpu_status(31) <= '1';
+	zpu_status(39 downto 32) <= trace_opcode;
+	zpu_status(40) <= '1' when (state = State_Idle) else '0';
+	zpu_status(62) <= '1';
+
+	traceFileGenerate:
+   if Generate_Trace generate
+	trace_file: trace port map (
+       	clk => clk,
+       	begin_inst => begin_inst,
+       	pc => trace_pc,
+		opcode => trace_opcode,
+		sp => trace_sp,
+		memA => trace_topOfStack,
+		memB => trace_topOfStackB,
+		busy => busy,
+		intsp => (others => 'U')
+        );
+	end generate;
+
+	
+	-- the memory subsystem will tell us one cycle later whether or 
+	-- not it is busy
+	out_mem_addr(maxAddrBitIncIO downto minAddrBit) <= mem_addr;
+	out_mem_addr(minAddrBit-1 downto 0) <= (others => '0');
+	mem_req <= out_mem_req;
+	
+	incSp <= sp + 1;
+	incIncSp <= sp + 2;
+	decSp <= sp - 1;
+	
+	mem_busy <= out_mem_req and not mem_ack; -- '1' when the memory is busy
+
+	opcodeControl:
+	process(clk, areset)
+		variable tOpcode : std_logic_vector(OpCode_Size-1 downto 0);
+		variable spOffset : std_logic_vector(4 downto 0);
+		variable tSpOffset : std_logic_vector(4 downto 0);
+		variable nextPC : std_logic_vector(maxAddrBitIncIO downto 0);
+		variable tNextState : InsnType;
+		variable tDecodedOpcode : InsnArray;
+		variable tMultResult : std_logic_vector(wordSize*2-1 downto 0);
+	begin
+		if areset = '1' then
+			state <= State_Idle;
+			break <= '0';
+			sp <= stack_start(maxAddrBitIncIO downto minAddrBit);
+			 
+			pc <= (others => '0');
+			idim_flag <= '0';
+			begin_inst <= '0';
+			mem_we <= '0';
+			multA <= (others => '0');
+			multB <= (others => '0');
+			mem_writeMask <= (others => '1');
+			out_mem_req <= '0';
+			mem_addr <= (others => DontCareValue);
+			mem_write <= (others => DontCareValue);
+			inInterrupt <= '0';
+		elsif (clk'event and clk = '1') then
+			-- we must multiply unconditionally to get pipelined multiplication
+        	tMultResult := multA * multB;
+    		multResult3 <= multResult2;
+    		multResult2 <= multResult;
+    		multResult <= tMultResult(wordSize-1 downto 0);
+    		
+			
+			spOffset(4):=not opcode(conv_integer(pc(byteBits-1 downto 0)))(4);
+			spOffset(3 downto 0):=opcode(conv_integer(pc(byteBits-1 downto 0)))(3 downto 0);
+			nextPC := pc + 1;
+
+			-- prepare trace snapshot
+			trace_opcode <= opcode(conv_integer(pc(byteBits-1 downto 0)));
+			trace_pc <= pc;
+			trace_sp <=	sp;
+			trace_topOfStack <= stackA;
+			trace_topOfStackB <= stackB;
+			begin_inst <= '0';
+
+			-- we terminate the requeset as soon as we get acknowledge
+			if mem_ack = '1' then
+				out_mem_req <= '0';
+				mem_we <= '0';
+			end if;
+			
+			if interrupt='0' then
+				inInterrupt <= '0'; -- no longer in an interrupt
+			end if;
+
+			case state is
+				when State_Idle =>
+					if enable='1' then
+						state <= State_Resync; 
+					end if;
+				-- Initial state of ZPU, fetch top of stack + first instruction 
+				when State_Resync =>
+					if mem_busy='0' then
+						mem_addr <= sp;
+						out_mem_req <= '1';
+						state <= State_Resync2;
+					end if;
+				when State_Resync2 =>
+					if mem_busy='0' then
+						stackA <= mem_read;
+						mem_addr <= incSp;
+						out_mem_req <= '1';
+						state <= State_Resync3;
+					end if;
+				when State_Resync3 =>
+					if mem_busy='0' then
+						stackB <= mem_read;
+						mem_addr <= pc(maxAddrBitIncIO downto minAddrBit);
+						out_mem_req <= '1';
+						state <= State_Decode;
+					end if;
+				when State_Decode =>
+					if mem_busy='0' then
+						decodeWord <= mem_read;
+						state <= State_Decode2;
+					end if;
+				when State_Decode2 =>
+					-- decode 4 instructions in parallel
+					for i in 0 to wordBytes-1 loop
+						tOpcode := decodeWord((wordBytes-1-i+1)*8-1 downto (wordBytes-1-i)*8);
+
+						tSpOffset(4):=not tOpcode(4);
+						tSpOffset(3 downto 0):=tOpcode(3 downto 0);
+
+						opcode(i) <= tOpcode;
+						if (tOpcode(7 downto 7)=OpCode_Im) then
+							tNextState:=State_Im;
+						elsif (tOpcode(7 downto 5)=OpCode_StoreSP) then
+							if tSpOffset = 0 then
+								tNextState := State_Pop;
+							elsif tSpOffset=1 then
+								tNextState := State_PopDown;
+							else
+								tNextState :=State_StoreSP;
+							end if;
+						elsif (tOpcode(7 downto 5)=OpCode_LoadSP) then
+							if tSpOffset = 0 then
+								tNextState :=State_Dup;
+							elsif tSpOffset = 1 then
+								tNextState :=State_DupStackB;
+							else
+								tNextState :=State_LoadSP;
+							end if;
+						elsif (tOpcode(7 downto 5)=OpCode_Emulate) then
+							tNextState :=State_Emulate;
+							if tOpcode(5 downto 0)=OpCode_Neqbranch then
+								tNextState :=State_Neqbranch;
+							elsif tOpcode(5 downto 0)=OpCode_Eq then
+								tNextState :=State_Eq;
+							elsif tOpcode(5 downto 0)=OpCode_Lessthan then
+								tNextState :=State_Lessthan;
+							elsif tOpcode(5 downto 0)=OpCode_Lessthanorequal then
+								--tNextState :=State_Lessthanorequal;
+							elsif tOpcode(5 downto 0)=OpCode_Ulessthan then
+								tNextState :=State_Ulessthan;
+							elsif tOpcode(5 downto 0)=OpCode_Ulessthanorequal then
+								--tNextState :=State_Ulessthanorequal;
+							elsif tOpcode(5 downto 0)=OpCode_Loadb then
+								tNextState :=State_Loadb;
+							elsif tOpcode(5 downto 0)=OpCode_Mult then
+								tNextState :=State_Mult;
+							elsif tOpcode(5 downto 0)=OpCode_Storeb then
+								tNextState :=State_Storeb;
+							elsif tOpcode(5 downto 0)=OpCode_Pushspadd then
+								tNextState :=State_Pushspadd;
+							elsif tOpcode(5 downto 0)=OpCode_Callpcrel then
+								tNextState :=State_Callpcrel;
+							elsif tOpcode(5 downto 0)=OpCode_Call then
+								--tNextState :=State_Call;
+							elsif tOpcode(5 downto 0)=OpCode_Sub then
+								tNextState :=State_Sub;
+							elsif tOpcode(5 downto 0)=OpCode_PopPCRel then
+								--tNextState :=State_PopPCRel;
+							end if;								
+						elsif (tOpcode(7 downto 4)=OpCode_AddSP) then
+							if tSpOffset = 0 then
+								tNextState := State_Shift;
+							elsif tSpOffset = 1 then
+								tNextState := State_AddTop;
+							else
+								tNextState :=State_AddSP;
+							end if;
+						else
+							case tOpcode(3 downto 0) is
+								when OpCode_Nop =>
+									tNextState :=State_Nop;
+								when OpCode_PushSP =>
+									tNextState :=State_PushSP;
+								when OpCode_PopPC =>
+									tNextState :=State_PopPC;
+								when OpCode_Add =>
+									tNextState :=State_Add;
+								when OpCode_Or =>
+									tNextState :=State_Or;
+								when OpCode_And =>
+									tNextState :=State_And;
+								when OpCode_Load =>
+									tNextState :=State_Load;
+								when OpCode_Not =>
+									tNextState :=State_Not;
+								when OpCode_Flip =>
+									tNextState :=State_Flip;
+								when OpCode_Store =>
+									tNextState :=State_Store;
+								when OpCode_PopSP =>
+									tNextState :=State_PopSP;
+								when others =>
+									tNextState := State_Break;
+
+							end case;
+						end if;
+						tDecodedOpcode(i) := tNextState;
+						
+					end loop;
+					
+					insn <= tDecodedOpcode(conv_integer(pc(byteBits-1 downto 0)));
+					
+					-- once we wrap, we need to fetch
+					tDecodedOpcode(0) := State_InsnFetch;
+
+					decodedOpcode <= tDecodedOpcode;
+					state <= State_Execute;
+						
+
+
+					-- Each instruction must:
+					--
+					-- 1. set idim_flag
+					-- 2. increase pc if applicable
+					-- 3. set next state if appliable
+					-- 4. do it's operation
+					 
+				when State_Execute =>
+					insn <= decodedOpcode(conv_integer(nextPC(byteBits-1 downto 0)));
+									
+					case insn is
+						when State_InsnFetch =>
+							state <= State_Fetch;
+						when State_Im =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '1';
+								pc <= pc + 1;
+								
+								if idim_flag='1' then 
+									stackA(wordSize-1 downto 7) <= stackA(wordSize-8 downto 0);
+									stackA(6 downto 0) <= opcode(conv_integer(pc(byteBits-1 downto 0)))(6 downto 0);
+								else
+									out_mem_req <= '1';
+									mem_we <= '1';
+									mem_addr <= incSp;
+									mem_write <= stackB;
+									stackB <= stackA;
+									sp <= decSp;
+									for i in wordSize-1 downto 7 loop
+										stackA(i) <= opcode(conv_integer(pc(byteBits-1 downto 0)))(6);
+									end loop;
+									stackA(6 downto 0) <= opcode(conv_integer(pc(byteBits-1 downto 0)))(6 downto 0);
+								end if;
+							else	
+								insn <= insn;
+							end if;
+						when State_StoreSP =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								state <= State_StoreSP2;
+								
+								out_mem_req <= '1';
+								mem_we <= '1';
+								mem_addr <= sp+spOffset;
+								mem_write <= stackA;
+								stackA <= stackB;
+								sp <= incSp;
+							else	
+								insn <= insn;
+							end if;
+
+					
+						when State_LoadSP =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								state <= State_LoadSP2;
+		
+								sp <= decSp;
+								out_mem_req <= '1';
+								mem_we <= '1';
+								mem_addr <= incSp;
+								mem_write <= stackB;
+							else	
+								insn <= insn;
+							end if;
+						when State_Emulate =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								sp <= decSp;
+								out_mem_req <= '1';
+								mem_we <= '1';
+								mem_addr <= incSp;
+								mem_write <= stackB;
+								stackA <= (others => DontCareValue);
+								stackA(maxAddrBitIncIO downto 0) <= pc + 1;
+								stackB <= stackA;
+								
+								-- The emulate address is:
+								--        98 7654 3210
+								-- 0000 00aa aaa0 0000
+								pc <= (others => '0');
+								pc(9 downto 5) <= opcode(conv_integer(pc(byteBits-1 downto 0)))(4 downto 0);
+								state <= State_Fetch;
+							else	
+								insn <= insn;
+							end if;
+						when State_Callpcrel =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								stackA <= (others => DontCareValue);
+								stackA(maxAddrBitIncIO downto 0) <= pc + 1;
+								
+								pc <= pc + stackA(maxAddrBitIncIO downto 0);
+								state <= State_Fetch;
+							else	
+								insn <= insn;
+							end if;
+						when State_Call =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								stackA <= (others => DontCareValue);
+								stackA(maxAddrBitIncIO downto 0) <= pc + 1;
+								pc <= stackA(maxAddrBitIncIO downto 0);
+								state <= State_Fetch;
+							else	
+								insn <= insn;
+							end if;
+						when State_AddSP =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								state <= State_AddSP2;
+								
+								out_mem_req <= '1';
+								mem_addr <= sp+spOffset;
+							else	
+								insn <= insn;
+							end if;
+						when State_PushSP =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								pc <= pc + 1;
+								
+								sp <= decSp;
+								stackA <= (others => '0');
+								stackA(maxAddrBitIncIO downto minAddrBit) <= sp;
+								stackB <= stackA;
+								out_mem_req <= '1';
+								mem_we <= '1';
+								mem_addr <= incSp;
+								mem_write <= stackB;
+							else	
+								insn <= insn;
+							end if;
+						when State_PopPC =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								pc <= stackA(maxAddrBitIncIO downto 0);
+								sp <= incSp;
+								
+								out_mem_req <= '1';
+								mem_we <= '1';
+								mem_addr <= incSp;
+								mem_write <= stackB;
+								state <= State_Resync;
+							else	
+								insn <= insn;
+							end if;
+						when State_PopPCRel =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								pc <= stackA(maxAddrBitIncIO downto 0) + pc;
+								sp <= incSp;
+								
+								out_mem_req <= '1';
+								mem_we <= '1';
+								mem_addr <= incSp;
+								mem_write <= stackB;
+								state <= State_Resync;
+							else	
+								insn <= insn;
+							end if;
+						when State_Add =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								stackA <= stackA + stackB;
+								
+								out_mem_req <= '1';
+								mem_addr <= incIncSp;
+								sp <= incSp;
+								state <= State_Popped;
+							else	
+								insn <= insn;
+							end if;
+						when State_Sub =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+							binaryOpResult <= stackB - stackA;
+							state <= State_BinaryOpResult;
+						when State_Pop =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								mem_addr <= incIncSp;
+								out_mem_req <= '1';
+								sp <= incSp;
+								stackA <= stackB;
+								state <= State_Popped;						
+							else	
+								insn <= insn;
+							end if;
+						when State_PopDown =>
+							if mem_busy='0' then
+								-- PopDown leaves top of stack unchanged
+								begin_inst <= '1';
+								idim_flag <= '0';
+								mem_addr <= incIncSp;
+								out_mem_req <= '1';
+								sp <= incSp;
+								state <= State_Popped;						
+							else	
+								insn <= insn;
+							end if;
+						when State_Or =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								stackA <= stackA or stackB;
+								out_mem_req <= '1';
+								mem_addr <= incIncSp;
+								sp <= incSp;
+								state <= State_Popped;
+							else	
+								insn <= insn;
+							end if;
+						when State_And =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+		
+								stackA <= stackA and stackB;
+								out_mem_req <= '1';
+								mem_addr <= incIncSp;
+								sp <= incSp;
+								state <= State_Popped;
+							else	
+								insn <= insn;
+							end if;
+						when State_Eq =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+	
+		            		binaryOpResult <= (others => '0');
+		                	if (stackA=stackB) then
+		                		binaryOpResult(0) <= '1';
+		                	end if;
+							state <= State_BinaryOpResult;
+		                when State_Ulessthan =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+	
+		            		binaryOpResult <= (others => '0');
+		                	if (stackA<stackB) then
+		                		binaryOpResult(0) <= '1';
+		                	end if;
+							state <= State_BinaryOpResult;
+		                when State_Ulessthanorequal =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+	
+		            		binaryOpResult <= (others => '0');
+		                	if (stackA<=stackB) then
+		                		binaryOpResult(0) <= '1';
+		                	end if;
+							state <= State_BinaryOpResult;
+		                when State_Lessthan =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+	
+		            		binaryOpResult <= (others => '0');
+		                	if (signed(stackA)<signed(stackB)) then
+		                		binaryOpResult(0) <= '1';
+		                	end if;
+							state <= State_BinaryOpResult;
+		                when State_Lessthanorequal =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+	
+		            		binaryOpResult <= (others => '0');
+		                	if (signed(stackA)<=signed(stackB)) then
+		                		binaryOpResult(0) <= '1';
+		                	end if;
+							state <= State_BinaryOpResult;
+						when State_Load =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								state <= State_Load2;
+								
+								mem_addr <= stackA(maxAddrBitIncIO downto minAddrBit);
+								out_mem_req <= '1';
+							else	
+								insn <= insn;
+							end if;
+
+						when State_Dup =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								pc <= pc + 1; 
+								
+								sp <= decSp;
+								stackB <= stackA;
+								mem_write <= stackB;
+								mem_addr <= incSp;
+								out_mem_req <= '1';
+								mem_we <= '1';
+							else	
+								insn <= insn;
+							end if;
+						when State_DupStackB =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								pc <= pc + 1; 
+								
+								sp <= decSp;
+								stackA <= stackB;
+								stackB <= stackA;
+								mem_write <= stackB;
+								mem_addr <= incSp;
+								out_mem_req <= '1';
+								mem_we <= '1';
+							else	
+								insn <= insn;
+							end if;
+						when State_Store =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								pc <= pc + 1;
+								mem_addr <= stackA(maxAddrBitIncIO downto minAddrBit);
+								mem_write <= stackB;
+								out_mem_req <= '1';
+								mem_we <= '1';
+								sp <= incIncSp;
+								state <= State_Resync;
+							else	
+								insn <= insn;
+							end if;
+						when State_PopSP =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								pc <= pc + 1;
+								
+								mem_write <= stackB;
+								mem_addr <= incSp;
+								out_mem_req <= '1';
+								mem_we <= '1';
+								sp <= stackA(maxAddrBitIncIO downto minAddrBit);
+								state <= State_Resync;
+							else	
+								insn <= insn;
+							end if;
+						when State_Nop =>	
+							begin_inst <= '1';
+							idim_flag <= '0';
+							pc <= pc + 1;
+						when State_Not =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+							pc <= pc + 1; 
+							
+							stackA <= not stackA;
+						when State_Flip =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+							pc <= pc + 1; 
+							
+							for i in 0 to wordSize-1 loop
+								stackA(i) <= stackA(wordSize-1-i);
+				  			end loop;
+						when State_AddTop =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+							pc <= pc + 1; 
+							
+							stackA <= stackA + stackB;
+						when State_Shift =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+							pc <= pc + 1; 
+							
+							stackA(wordSize-1 downto 1) <= stackA(wordSize-2 downto 0);
+							stackA(0) <= '0';
+						when State_Pushspadd =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+							pc <= pc + 1; 
+							
+							stackA <= (others => '0');
+							stackA(maxAddrBitIncIO downto minAddrBit) <= stackA(maxAddrBitIncIO-minAddrBit downto 0)+sp;
+						when State_Neqbranch =>
+							-- branches are almost always taken as they form loops
+							begin_inst <= '1';
+							idim_flag <= '0';
+							sp <= incIncSp;
+		                	if (stackB/=0) then
+		                		pc <= stackA(maxAddrBitIncIO downto 0) + pc;
+		                	else
+		                		pc <= pc + 1;
+		                	end if;		
+		                	-- need to fetch stack again.				
+							state <= State_Resync;
+		                when State_Mult =>
+							begin_inst <= '1';
+							idim_flag <= '0';
+		
+							multA <= stackA;
+							multB <= stackB;
+							state <= State_Mult2;
+						when State_Break =>
+							report "Break instruction encountered" severity failure;
+							break <= '1';
+
+						when State_Loadb =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								state <= State_Loadb2;
+								
+								mem_addr <= stackA(maxAddrBitIncIO downto minAddrBit);
+								out_mem_req <= '1';
+							else	
+								insn <= insn;
+							end if;
+						when State_Storeb =>
+							if mem_busy='0' then
+								begin_inst <= '1';
+								idim_flag <= '0';
+								state <= State_Storeb2;
+								
+								mem_addr <= stackA(maxAddrBitIncIO downto minAddrBit);
+								out_mem_req <= '1';
+							else	
+								insn <= insn;
+							end if;
+				
+						when others =>
+--							sp <= (others => DontCareValue);
+							report "Illegal instruction" severity failure;
+							break <= '1';
+					end case;
+
+
+				when State_StoreSP2 =>
+					if mem_busy='0' then
+						mem_addr <= incSp;
+						out_mem_req <= '1';
+						state <= State_Popped;
+					end if;
+				when State_LoadSP2 =>
+					if mem_busy='0' then
+						state <= State_LoadSP3;
+						out_mem_req <= '1';
+						mem_addr <= sp+spOffset+1;
+					end if;
+				when State_LoadSP3 =>
+					if mem_busy='0' then
+						pc <= pc + 1;
+						state <= State_Execute;
+						stackB <= stackA;
+						stackA <= mem_read;
+					end if;
+				when State_AddSP2 =>
+					if mem_busy='0' then
+						pc <= pc + 1;
+						state <= State_Execute;
+						stackA <= stackA + mem_read;
+					end if;
+				when State_Load2 =>
+					if mem_busy='0' then
+						stackA <= mem_read;
+						pc <= pc + 1;
+						state <= State_Execute;
+					end if;
+				when State_Loadb2 =>
+					if mem_busy='0' then
+						stackA <= (others => '0');
+						stackA(7 downto 0) <= mem_read(((wordBytes-1-conv_integer(stackA(byteBits-1 downto 0)))*8+7) downto (wordBytes-1-conv_integer(stackA(byteBits-1 downto 0)))*8);
+						pc <= pc + 1;
+						state <= State_Execute;
+					end if;
+				when State_Storeb2 =>
+					if mem_busy='0' then
+						mem_addr <= stackA(maxAddrBitIncIO downto minAddrBit);
+						mem_write <= mem_read;
+						mem_write(((wordBytes-1-conv_integer(stackA(byteBits-1 downto 0)))*8+7) downto (wordBytes-1-conv_integer(stackA(byteBits-1 downto 0)))*8) <= stackB(7 downto 0) ;
+						out_mem_req <= '1';
+						mem_we <= '1';
+						pc <= pc + 1;
+						sp <= incIncSp;
+						state <= State_Resync;
+					end if;
+				when State_Fetch =>
+					if mem_busy='0' then
+						if interrupt='1' and inInterrupt='0' and idim_flag='0' then
+							-- We got an interrupt
+							inInterrupt <= '1';
+							
+							sp <= decSp;
+							out_mem_req <= '1';
+							mem_we <= '1';
+							mem_addr <= incSp;
+							mem_write <= stackB;
+							stackA <= (others => DontCareValue);
+							stackA(maxAddrBitIncIO downto 0) <= pc;
+							stackB <= stackA;
+							
+							pc <= conv_std_logic_vector(32, maxAddrBitIncIo+1); -- interrupt address
+							
+			  				report "ZPU jumped to interrupt!" severity note;
+						else
+							mem_addr <= pc(maxAddrBitIncIO downto minAddrBit);
+							out_mem_req <= '1';
+							state <= State_Decode;
+						end if;
+					end if;
+                when State_Mult2 =>
+					state <= State_Mult3;
+                when State_Mult3 =>
+					state <= State_Mult4;
+                when State_Mult4 =>
+					state <= State_Mult5;
+                when State_Mult5 =>
+            		stackA <= multResult3;
+                	state <= State_Mult6;
+                when State_Mult6 =>
+					if mem_busy='0' then
+						out_mem_req <= '1';
+						mem_addr <= incIncSp;
+						sp <= incSp;
+						state <= State_Popped;
+					end if;
+				when State_BinaryOpResult =>
+					if mem_busy='0' then
+						-- NB!!!! we know that the memory isn't busy at this point!!!!
+						out_mem_req <= '1';
+						mem_addr <= incIncSp;
+						sp <= incSp;
+						stackA <= binaryOpResult;
+						state <= State_Popped;
+					end if;
+				when State_Popped =>
+					if mem_busy='0' then
+						pc <= pc + 1;
+						stackB <= mem_read;
+						state <= State_Execute;
+					end if;
+				when others =>	
+--					sp <= (others => DontCareValue);
+					report "Illegal state" severity failure;
+					break <= '1';
+			end case;
+		end if;
+	end process;
+
+
+
+end behave;
diff --git a/fpga/usrp2/opencores/zpu/core/zpupkg.vhd b/fpga/usrp2/opencores/zpu/core/zpupkg.vhd
new file mode 100644
index 000000000..eee967a09
--- /dev/null
+++ b/fpga/usrp2/opencores/zpu/core/zpupkg.vhd
@@ -0,0 +1,169 @@
+library IEEE;

+use IEEE.STD_LOGIC_1164.all;

+use IEEE.STD_LOGIC_ARITH.all;

+

+library work;

+use work.zpu_config.all;

+

+package zpupkg is

+

+	-- This bit is set for read/writes to IO

+	-- FIX!!! eventually this should be set to wordSize-1 so as to

+	-- to make the address of IO independent of amount of memory

+	-- reserved for CPU. Requires trivial tweaks in toolchain/runtime

+	-- libraries.

+	

+	constant byteBits			: integer := wordPower-3; -- # of bits in a word that addresses bytes

+	constant maxAddrBit			: integer := maxAddrBitIncIO-1;

+	constant ioBit				: integer := maxAddrBit+1;

+	constant wordSize			: integer := 2**wordPower;

+	constant wordBytes			: integer := wordSize/8;

+	constant minAddrBit			: integer := byteBits;

+	-- configurable internal stack size. Probably going to be 16 after toolchain is done

+	constant	stack_bits		: integer := 5; 

+	constant	stack_size		: integer := 2**stack_bits; 

+

+	component dualport_ram is

+	port (clk : in std_logic;

+		memAWriteEnable : in std_logic;

+		memAAddr : in std_logic_vector(maxAddrBit downto minAddrBit);

+		memAWrite : in std_logic_vector(wordSize-1 downto 0);

+		memARead : out std_logic_vector(wordSize-1 downto 0);

+		memBWriteEnable : in std_logic;

+		memBAddr : in std_logic_vector(maxAddrBit downto minAddrBit);

+		memBWrite : in std_logic_vector(wordSize-1 downto 0);

+		memBRead : out std_logic_vector(wordSize-1 downto 0));

+	end component;

+

+	component dram is

+		port (clk : in std_logic;

+			areset : in std_logic;

+			mem_writeEnable : in std_logic;

+			mem_readEnable : in std_logic;

+			mem_addr : in std_logic_vector(maxAddrBit downto 0);

+			mem_write : in std_logic_vector(wordSize-1 downto 0);

+			mem_read : out std_logic_vector(wordSize-1 downto 0);

+			mem_busy : out std_logic;

+			mem_writeMask : in std_logic_vector(wordBytes-1 downto 0));

+	end component;

+

+

+	component trace is

+	  port(

+	       	clk         : in std_logic;

+	       	begin_inst  : in std_logic;

+	       	pc          : in std_logic_vector(maxAddrBitIncIO downto 0);

+			opcode		: in std_logic_vector(7 downto 0);

+			sp			: in std_logic_vector(maxAddrBitIncIO downto minAddrBit);

+			memA		: in std_logic_vector(wordSize-1 downto 0);

+			memB		: in std_logic_vector(wordSize-1 downto 0);

+			busy         : in std_logic;

+			intSp		: in std_logic_vector(stack_bits-1 downto 0)

+			);

+	end component;

+

+	component zpu_core is

+    port ( clk : in std_logic;

+	 		  areset : in std_logic;

+	 		  enable : in std_logic; 

+	 		  mem_req : out std_logic;

+	 		  mem_we : out std_logic;

+	 		  mem_ack : in std_logic; 

+	 		  mem_read : in std_logic_vector(wordSize-1 downto 0);

+	 		  mem_write : out std_logic_vector(wordSize-1 downto 0);

+			  out_mem_addr : out std_logic_vector(maxAddrBitIncIO downto 0);

+	 		  mem_writeMask: out std_logic_vector(wordBytes-1 downto 0);

+			  stack_start : in std_logic_vector(maxAddrBitIncIO downto 0);

+	 		  interrupt : in std_logic;

+	 		  break : out std_logic;

+	 		  zpu_status : out std_logic_vector(63 downto 0));

+	end component;

+

+

+	

+	component timer is

+  	port(

+       	clk             : in std_logic;

+		areset			: in std_logic;

+		sample			: in std_logic;

+		reset			: in std_logic;

+		counter			: out std_logic_vector(63 downto 0));

+	end component;

+

+	component  zpuio is

+		port (	areset			: in std_logic;

+				cpu_clk			: in std_logic;

+				clk_status		: in std_logic_vector(2 downto 0);

+				cpu_din			: in std_logic_vector(15 downto 0);

+				cpu_a			: in std_logic_vector(20 downto 0);

+				cpu_we			: in std_logic_vector(1 downto 0);

+				cpu_re			: in std_logic;

+				cpu_dout		: inout std_logic_vector(15 downto 0));

+	end component;

+

+

+

+	

+	-- opcode decode constants

+	constant	OpCode_Im		: std_logic_vector(7 downto 7) := "1";

+	constant	OpCode_StoreSP	: std_logic_vector(7 downto 5) := "010";

+	constant	OpCode_LoadSP	: std_logic_vector(7 downto 5) := "011";

+	constant	OpCode_Emulate	: std_logic_vector(7 downto 5) := "001";

+	constant	OpCode_AddSP	: std_logic_vector(7 downto 4) := "0001";

+	constant	OpCode_Short	: std_logic_vector(7 downto 4) := "0000";

+	

+	constant	OpCode_Break	: std_logic_vector(3 downto 0) := "0000";

+	constant	OpCode_Shiftleft: std_logic_vector(3 downto 0) := "0001";

+	constant	OpCode_PushSP	: std_logic_vector(3 downto 0) := "0010";

+	constant	OpCode_PushInt	: std_logic_vector(3 downto 0) := "0011";

+	

+	constant	OpCode_PopPC	: std_logic_vector(3 downto 0) := "0100";

+	constant	OpCode_Add		: std_logic_vector(3 downto 0) := "0101";

+	constant	OpCode_And		: std_logic_vector(3 downto 0) := "0110";

+	constant	OpCode_Or		: std_logic_vector(3 downto 0) := "0111";

+	

+	constant	OpCode_Load		: std_logic_vector(3 downto 0) := "1000";

+	constant	OpCode_Not		: std_logic_vector(3 downto 0) := "1001";

+	constant	OpCode_Flip		: std_logic_vector(3 downto 0) := "1010";

+	constant	OpCode_Nop		: std_logic_vector(3 downto 0) := "1011";

+	

+	constant	OpCode_Store	: std_logic_vector(3 downto 0) := "1100";

+	constant	OpCode_PopSP	: std_logic_vector(3 downto 0) := "1101";

+	constant	OpCode_Compare	: std_logic_vector(3 downto 0) := "1110";

+	constant	OpCode_PopInt	: std_logic_vector(3 downto 0) := "1111";

+	

+	constant	OpCode_Lessthan				: std_logic_vector(5 downto 0) := conv_std_logic_vector(36, 6);

+	constant	OpCode_Lessthanorequal		: std_logic_vector(5 downto 0) := conv_std_logic_vector(37, 6);

+	constant	OpCode_Ulessthan			: std_logic_vector(5 downto 0) := conv_std_logic_vector(38, 6);

+	constant	OpCode_Ulessthanorequal		: std_logic_vector(5 downto 0) := conv_std_logic_vector(39, 6);

+

+	constant	OpCode_Swap					: std_logic_vector(5 downto 0) := conv_std_logic_vector(40, 6);

+	constant	OpCode_Mult					: std_logic_vector(5 downto 0) := conv_std_logic_vector(41, 6);

+	

+	constant	OpCode_Lshiftright			: std_logic_vector(5 downto 0) := conv_std_logic_vector(42, 6);

+	constant	OpCode_Ashiftleft			: std_logic_vector(5 downto 0) := conv_std_logic_vector(43, 6);

+	constant	OpCode_Ashiftright			: std_logic_vector(5 downto 0) := conv_std_logic_vector(44, 6);

+	constant	OpCode_Call					: std_logic_vector(5 downto 0) := conv_std_logic_vector(45, 6);

+

+	constant	OpCode_Eq					: std_logic_vector(5 downto 0) := conv_std_logic_vector(46, 6);

+	constant	OpCode_Neq					: std_logic_vector(5 downto 0) := conv_std_logic_vector(47, 6);

+

+	constant	OpCode_Sub					: std_logic_vector(5 downto 0) := conv_std_logic_vector(49, 6);

+	constant	OpCode_Loadb				: std_logic_vector(5 downto 0) := conv_std_logic_vector(51, 6);

+	constant	OpCode_Storeb				: std_logic_vector(5 downto 0) := conv_std_logic_vector(52, 6);

+

+	constant	OpCode_Eqbranch				: std_logic_vector(5 downto 0) := conv_std_logic_vector(55, 6);

+	constant	OpCode_Neqbranch			: std_logic_vector(5 downto 0) := conv_std_logic_vector(56, 6);

+	constant	OpCode_Poppcrel				: std_logic_vector(5 downto 0) := conv_std_logic_vector(57, 6);

+

+	constant	OpCode_Pushspadd			: std_logic_vector(5 downto 0) := conv_std_logic_vector(61, 6);

+	constant	OpCode_Mult16x16			: std_logic_vector(5 downto 0) := conv_std_logic_vector(62, 6);

+	constant	OpCode_Callpcrel			: std_logic_vector(5 downto 0) := conv_std_logic_vector(63, 6);

+	

+

+

+	constant OpCode_Size		: integer := 8;

+

+

+		

+end zpupkg;

diff --git a/fpga/usrp2/opencores/zpu/wishbone/wishbone_pkg.vhd b/fpga/usrp2/opencores/zpu/wishbone/wishbone_pkg.vhd
new file mode 100644
index 000000000..375c9ac7e
--- /dev/null
+++ b/fpga/usrp2/opencores/zpu/wishbone/wishbone_pkg.vhd
@@ -0,0 +1,86 @@
+-- ZPU

+--

+-- Copyright 2004-2008 oharboe - Øyvind Harboe - oyvind.harboe@zylin.com

+-- 

+-- The FreeBSD license

+-- 

+-- Redistribution and use in source and binary forms, with or without

+-- modification, are permitted provided that the following conditions

+-- are met:

+-- 

+-- 1. Redistributions of source code must retain the above copyright

+--    notice, this list of conditions and the following disclaimer.

+-- 2. Redistributions in binary form must reproduce the above

+--    copyright notice, this list of conditions and the following

+--    disclaimer in the documentation and/or other materials

+--    provided with the distribution.

+-- 

+-- THIS SOFTWARE IS PROVIDED BY THE ZPU PROJECT ``AS IS'' AND ANY

+-- EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

+-- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

+-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

+-- ZPU PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,

+-- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

+-- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

+-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

+-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

+-- STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

+-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

+-- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+-- 

+-- The views and conclusions contained in the software and documentation

+-- are those of the authors and should not be interpreted as representing

+-- official policies, either expressed or implied, of the ZPU Project.

+

+library IEEE;

+use IEEE.STD_LOGIC_1164.all;

+use IEEE.STD_LOGIC_UNSIGNED.ALL;

+

+package wishbone_pkg is

+

+	type wishbone_bus_in is record

+		adr			: std_logic_vector(15 downto 0); 

+		sel			: std_logic_vector(3 downto 0); 

+		we			: std_logic;

+		dat			: std_logic_vector(31 downto 0); 	-- Note! Data written with 'we'

+		cyc			: std_logic; 

+		stb			: std_logic;

+	end record;

+

+	type wishbone_bus_out is record

+		dat		: std_logic_vector(31 downto 0);

+		ack			: std_logic;

+	end record;

+	

+	type wishbone_bus is record

+		insig		: wishbone_bus_in;

+		outsig  	: wishbone_bus_out;

+	end record;

+

+	component atomic32_access is

+	port (	cpu_clk			: in std_logic;

+			areset			: in std_logic;

+	

+			-- Wishbone from CPU interface

+			wb_16_i			: in wishbone_bus_in;

+			wb_16_o     	: out wishbone_bus_out;

+			-- Wishbone to FPGA registers and ethernet core

+			wb_32_i			: in wishbone_bus_out;

+			wb_32_o			: out wishbone_bus_in);

+	end component;

+	

+	component eth_access_corr is

+	port (	cpu_clk			: in std_logic;

+			areset			: in std_logic;

+	

+			-- Wishbone from Wishbone MUX

+			eth_raw_o		: out wishbone_bus_out;

+			eth_raw_i		: in wishbone_bus_in;

+			

+			-- Wishbone ethernet core

+			eth_slave_i 	: in wishbone_bus_out;

+			eth_slave_o		: out wishbone_bus_in);

+	end component;

+

+

+end wishbone_pkg;

diff --git a/fpga/usrp2/opencores/zpu/wishbone/zpu_system.vhd b/fpga/usrp2/opencores/zpu/wishbone/zpu_system.vhd
new file mode 100644
index 000000000..8af678b6a
--- /dev/null
+++ b/fpga/usrp2/opencores/zpu/wishbone/zpu_system.vhd
@@ -0,0 +1,106 @@
+-- ZPU

+--

+-- Copyright 2004-2008 oharboe - Øyvind Harboe - oyvind.harboe@zylin.com

+-- 

+-- The FreeBSD license

+-- 

+-- Redistribution and use in source and binary forms, with or without

+-- modification, are permitted provided that the following conditions

+-- are met:

+-- 

+-- 1. Redistributions of source code must retain the above copyright

+--    notice, this list of conditions and the following disclaimer.

+-- 2. Redistributions in binary form must reproduce the above

+--    copyright notice, this list of conditions and the following

+--    disclaimer in the documentation and/or other materials

+--    provided with the distribution.

+-- 

+-- THIS SOFTWARE IS PROVIDED BY THE ZPU PROJECT ``AS IS'' AND ANY

+-- EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

+-- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

+-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

+-- ZPU PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,

+-- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

+-- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

+-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

+-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

+-- STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

+-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

+-- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+-- 

+-- The views and conclusions contained in the software and documentation

+-- are those of the authors and should not be interpreted as representing

+-- official policies, either expressed or implied, of the ZPU Project.

+

+library IEEE;

+use IEEE.STD_LOGIC_1164.all;

+use IEEE.STD_LOGIC_UNSIGNED.all; 

+

+library work;

+use work.zpu_top_pkg.all;

+use work.wishbone_pkg.all;

+use work.zpupkg.all;

+use work.zpu_config.all;

+

+entity zpu_system is

+	generic(

+			simulate		: boolean := false);

+	port (	areset			: in std_logic;

+			cpu_clk			: in std_logic;

+

+			-- ZPU Control signals

+			enable			: in std_logic;

+			interrupt		: in std_logic;

+			stack_start		: in std_logic_vector(maxAddrBitIncIO downto 0);

+			zpu_status		: out std_logic_vector(63 downto 0);

+

+			-- wishbone interfaces

+			zpu_wb_i		: in wishbone_bus_out;

+			zpu_wb_o		: out wishbone_bus_in);

+end zpu_system;

+

+architecture behave of zpu_system is

+

+signal	mem_req					: std_logic;

+signal	mem_we 					: std_logic;

+signal	mem_ack 				: std_logic; 

+signal	mem_read 				: std_logic_vector(wordSize-1 downto 0);

+signal	mem_write 				: std_logic_vector(wordSize-1 downto 0);

+signal	out_mem_addr 			: std_logic_vector(maxAddrBitIncIO downto 0);

+signal	mem_writeMask			: std_logic_vector(wordBytes-1 downto 0);

+

+

+begin

+

+	my_zpu_core:

+	zpu_core port map (

+    	clk 				=> cpu_clk, 

+		areset 				=> areset,

+	 	enable 				=> enable,

+	  	mem_req 			=> mem_req,

+	 	mem_we 				=> mem_we,

+	 	mem_ack 			=> mem_ack, 

+	 	mem_read 			=> mem_read,

+	 	mem_write 			=> mem_write,

+		out_mem_addr 		=> out_mem_addr,

+	 	mem_writeMask		=> mem_writeMask,

+	 	stack_start			=> stack_start,

+	 	interrupt			=> interrupt,

+	 	zpu_status			=> zpu_status,

+	 	break				=> open);

+

+	my_zpu_wb_bridge:

+	zpu_wb_bridge port map (

+		clk 				=> cpu_clk,

+	 	areset 				=> areset,

+	  	mem_req 			=> mem_req,

+	 	mem_we 				=> mem_we,

+	 	mem_ack 			=> mem_ack, 

+	 	mem_read 			=> mem_read,

+	 	mem_write 			=> mem_write,

+		out_mem_addr 		=> out_mem_addr,

+	 	mem_writeMask		=> mem_writeMask,

+		zpu_wb_i			=> zpu_wb_i,

+		zpu_wb_o			=> zpu_wb_o);

+

+end behave;

diff --git a/fpga/usrp2/opencores/zpu/wishbone/zpu_wb_bridge.vhd b/fpga/usrp2/opencores/zpu/wishbone/zpu_wb_bridge.vhd
new file mode 100644
index 000000000..104ee10b8
--- /dev/null
+++ b/fpga/usrp2/opencores/zpu/wishbone/zpu_wb_bridge.vhd
@@ -0,0 +1,83 @@
+-- ZPU

+--

+-- Copyright 2004-2008 oharboe - Øyvind Harboe - oyvind.harboe@zylin.com

+-- 

+-- The FreeBSD license

+-- 

+-- Redistribution and use in source and binary forms, with or without

+-- modification, are permitted provided that the following conditions

+-- are met:

+-- 

+-- 1. Redistributions of source code must retain the above copyright

+--    notice, this list of conditions and the following disclaimer.

+-- 2. Redistributions in binary form must reproduce the above

+--    copyright notice, this list of conditions and the following

+--    disclaimer in the documentation and/or other materials

+--    provided with the distribution.

+-- 

+-- THIS SOFTWARE IS PROVIDED BY THE ZPU PROJECT ``AS IS'' AND ANY

+-- EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

+-- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

+-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

+-- ZPU PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,

+-- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

+-- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

+-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

+-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

+-- STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

+-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

+-- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+-- 

+-- The views and conclusions contained in the software and documentation

+-- are those of the authors and should not be interpreted as representing

+-- official policies, either expressed or implied, of the ZPU Project.

+

+library IEEE;

+use IEEE.STD_LOGIC_1164.ALL;

+use IEEE.STD_LOGIC_UNSIGNED.ALL;

+

+library work;

+use work.zpu_top_pkg.all;

+use work.wishbone_pkg.all;

+use work.zpupkg.all;

+use work.zpu_config.all;

+

+entity zpu_wb_bridge is

+	port (	-- Native ZPU interface

+ 			clk 				: in std_logic;

+	 		areset 				: in std_logic;

+

+	 		mem_req 			: in std_logic;

+	 		mem_we				: in std_logic;

+	 		mem_ack				: out std_logic; 

+	 		mem_read 			: out std_logic_vector(wordSize-1 downto 0);

+	 		mem_write 			: in std_logic_vector(wordSize-1 downto 0);

+			out_mem_addr 		: in std_logic_vector(maxAddrBitIncIO downto 0);

+	 		mem_writeMask		: in std_logic_vector(wordBytes-1 downto 0);

+			

+			-- Wishbone from ZPU

+			zpu_wb_i			: in wishbone_bus_out;

+			zpu_wb_o			: out wishbone_bus_in);

+

+end zpu_wb_bridge;

+

+architecture behave of zpu_wb_bridge is

+

+begin

+

+	mem_read <= zpu_wb_i.dat;

+	mem_ack <= zpu_wb_i.ack;

+	

+	zpu_wb_o.adr <= out_mem_addr;

+	zpu_wb_o.dat <= mem_write;

+	zpu_wb_o.sel <= mem_writeMask;

+	zpu_wb_o.stb <= mem_req;

+	zpu_wb_o.cyc <= mem_req;

+	zpu_wb_o.we <= mem_we;

+

+end behave;

+

+			

+

+	

+

diff --git a/fpga/usrp2/opencores/zpu/zpu_top_pkg.vhd b/fpga/usrp2/opencores/zpu/zpu_top_pkg.vhd
new file mode 100644
index 000000000..a158ab9c0
--- /dev/null
+++ b/fpga/usrp2/opencores/zpu/zpu_top_pkg.vhd
@@ -0,0 +1,46 @@
+library IEEE;
+use IEEE.STD_LOGIC_1164.ALL;
+use IEEE.STD_LOGIC_UNSIGNED.ALL;
+
+library work;
+use work.zpupkg.all;
+use work.zpu_config.all;
+use work.wishbone_pkg.all;
+
+package zpu_top_pkg is
+    component zpu_wb_bridge is
+    port (	-- Native ZPU interface
+            clk 				: in std_logic;
+            areset 				: in std_logic;
+
+            mem_req 			: in std_logic;
+            mem_we				: in std_logic;
+            mem_ack				: out std_logic; 
+            mem_read 			: out std_logic_vector(wordSize-1 downto 0);
+            mem_write 			: in std_logic_vector(wordSize-1 downto 0);
+            out_mem_addr 		: in std_logic_vector(maxAddrBitIncIO downto 0);
+            mem_writeMask		: in std_logic_vector(wordBytes-1 downto 0);
+            
+            -- Wishbone from ZPU
+            zpu_wb_i			: in wishbone_bus_out;
+            zpu_wb_o			: out wishbone_bus_in);
+    end component;
+
+    component zpu_system is
+    generic(
+            simulate		: boolean := false);
+    port (	areset			: in std_logic;
+            cpu_clk			: in std_logic;
+
+            -- ZPU Control signals
+            enable			: in std_logic;
+            interrupt		: in std_logic;
+            stack_start		: in std_logic_vector(maxAddrBitIncIO downto 0);
+            zpu_status		: out std_logic_vector(63 downto 0);
+
+            -- wishbone interfaces
+            zpu_wb_i		: in wishbone_bus_out;
+            zpu_wb_o		: out wishbone_bus_in);
+    end component;
+
+end zpu_top_pkg;
diff --git a/fpga/usrp2/opencores/zpu/zpu_wb_top.vhd b/fpga/usrp2/opencores/zpu/zpu_wb_top.vhd
new file mode 100644
index 000000000..9735c4b54
--- /dev/null
+++ b/fpga/usrp2/opencores/zpu/zpu_wb_top.vhd
@@ -0,0 +1,76 @@
+library IEEE;
+use IEEE.STD_LOGIC_1164.ALL;
+use IEEE.STD_LOGIC_UNSIGNED.ALL;
+
+library work;
+use work.zpu_top_pkg.all;
+use work.wishbone_pkg.all;
+use work.zpupkg.all;
+use work.zpu_config.all;
+
+------------------------------------------------------------------------
+-- Top level ZPU + wishbone componenent to use in a verilog design:
+--   zpu_wb_top wraps around the zpu_system component.
+--   All IO lines are exposed as std_logic for verilog.
+------------------------------------------------------------------------
+entity zpu_wb_top is
+    generic (
+        dat_w: integer := 32;
+        adr_w: integer := 16;
+        sel_w: integer := 4
+    );
+    port (
+        clk: in std_logic;
+        rst: in std_logic;
+        enb: in std_logic;
+
+        -- wishbone interface
+        dat_i: in std_logic_vector(dat_w-1 downto 0);
+        ack_i: in std_logic;
+        adr_o: out std_logic_vector(adr_w-1 downto 0);
+        sel_o: out std_logic_vector(sel_w-1 downto 0);
+        we_o: out std_logic;
+        dat_o: out std_logic_vector(dat_w-1 downto 0);
+        cyc_o: out std_logic;
+        stb_o: out std_logic;
+
+        -- misc zpu signals
+        interrupt: in std_logic;
+        stack_start: in std_logic_vector(adr_w-1 downto 0);
+        zpu_status: out std_logic_vector(63 downto 0)
+    );
+
+end zpu_wb_top;
+
+architecture syn of zpu_wb_top is
+
+--wishbone interface (records)
+signal zpu_wb_i: wishbone_bus_out;
+signal zpu_wb_o: wishbone_bus_in;
+
+begin
+
+--assign wishbone signals to records
+zpu_wb_i.dat <= dat_i;
+zpu_wb_i.ack <= ack_i;
+
+adr_o <= zpu_wb_o.adr;
+sel_o <= zpu_wb_o.sel;
+we_o <= zpu_wb_o.we;
+dat_o <= zpu_wb_o.dat;
+cyc_o <= zpu_wb_o.cyc;
+stb_o <= zpu_wb_o.stb;
+
+--instantiate the zpu system
+zpu_system0: zpu_system port map(
+    cpu_clk => clk,
+    areset => rst,
+    enable => enb,
+    interrupt => interrupt,
+    stack_start => stack_start,
+    zpu_status => zpu_status,
+    zpu_wb_i => zpu_wb_i,
+    zpu_wb_o => zpu_wb_o
+);
+
+end architecture syn;
diff --git a/fpga/usrp2/simple_gemac/Makefile.srcs b/fpga/usrp2/simple_gemac/Makefile.srcs
index 6480cd5a4..b82e64208 100644
--- a/fpga/usrp2/simple_gemac/Makefile.srcs
+++ b/fpga/usrp2/simple_gemac/Makefile.srcs
@@ -17,6 +17,7 @@ delay_line.v \
 flow_ctrl_tx.v \
 flow_ctrl_rx.v \
 address_filter.v \
+address_filter_promisc.v \
 ll8_to_txmac.v \
 rxmac_to_ll8.v \
 miim/eth_miim.v \
diff --git a/fpga/usrp2/simple_gemac/address_filter_promisc.v b/fpga/usrp2/simple_gemac/address_filter_promisc.v
new file mode 100644
index 000000000..6047e7c93
--- /dev/null
+++ b/fpga/usrp2/simple_gemac/address_filter_promisc.v
@@ -0,0 +1,32 @@
+
+
+module address_filter_promisc
+  (input clk,
+   input reset,
+   input go,
+   input [7:0] data,
+   output match,
+   output done);
+
+   reg [2:0] af_state;
+
+   always @(posedge clk)
+     if(reset)
+       af_state     <= 0;
+     else
+       if(go)
+	 af_state <= (data[0] == 1'b0) ? 1 : 7;
+       else
+	 case(af_state)
+	   1 : af_state <= 2;
+	   2 : af_state <= 3;
+	   3 : af_state <= 4;
+	   4 : af_state <= 5;
+	   5 : af_state <= 6;
+	   6, 7 : af_state <= 0;
+	 endcase // case (af_state)
+
+   assign match  = (af_state==6);
+   assign done 	 = (af_state==6)|(af_state==7);
+   
+endmodule // address_filter_promisc
diff --git a/fpga/usrp2/simple_gemac/eth_tasks_f36.v b/fpga/usrp2/simple_gemac/eth_tasks_f36.v
index efd72778b..dc64971d4 100644
--- a/fpga/usrp2/simple_gemac/eth_tasks_f36.v
+++ b/fpga/usrp2/simple_gemac/eth_tasks_f36.v
@@ -4,11 +4,11 @@ task SendFlowCtrl;
    input [15:0] fc_len;
    begin
       $display("Sending Flow Control, quanta = %d, time = %d", fc_len,$time);
-      pause_time <= fc_len;
+      //pause_time <= fc_len;
       @(posedge eth_clk);
-      pause_req <= 1;
+      //pause_req <= 1;
       @(posedge eth_clk);
-      pause_req <= 0;
+      //pause_req <= 0;
       $display("Sent Flow Control");
    end
 endtask // SendFlowCtrl
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_rx.v b/fpga/usrp2/simple_gemac/simple_gemac_rx.v
index b02bb0758..32f517bb3 100644
--- a/fpga/usrp2/simple_gemac/simple_gemac_rx.v
+++ b/fpga/usrp2/simple_gemac/simple_gemac_rx.v
@@ -56,10 +56,10 @@ module simple_gemac_rx
      else
        rx_ack <= (rx_state == RX_GOODFRAME);
 
-   wire is_ucast, is_bcast, is_mcast, is_pause;
-   wire keep_packet  = (pass_ucast & is_ucast) | (pass_mcast & is_mcast) | 
-	(pass_bcast & is_bcast) | (pass_pause & is_pause) | pass_all;
-   
+   wire is_ucast, is_bcast, is_mcast, is_pause, is_any_ucast;
+   wire keep_packet  = (pass_all & is_any_ucast) | (pass_ucast & is_ucast) | (pass_mcast & is_mcast) | 
+	(pass_bcast & is_bcast) | (pass_pause & is_pause);
+      
    assign rx_data   = rxd_del;
    assign rx_error  = (rx_state == RX_ERROR);
 
@@ -79,6 +79,8 @@ module simple_gemac_rx
 			    .address(48'hFFFF_FFFF_FFFF), .match(is_bcast), .done());
    address_filter af_pause (.clk(rx_clk), .reset(reset), .go(go_filt), .data(rxd_d1),
 			    .address(48'h0180_c200_0001), .match(is_pause), .done());
+   address_filter_promisc af_promisc (.clk(rx_clk), .reset(reset), .go(go_filt), .data(rxd_d1),
+				      .match(is_any_ucast), .done());
 
    always @(posedge rx_clk)
      go_filt 			 <= (rx_state==RX_PREAMBLE) & (rxd_d1 == 8'hD5);
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wb.v b/fpga/usrp2/simple_gemac/simple_gemac_wb.v
index 6df277e3e..1ef38be11 100644
--- a/fpga/usrp2/simple_gemac/simple_gemac_wb.v
+++ b/fpga/usrp2/simple_gemac/simple_gemac_wb.v
@@ -1,16 +1,17 @@
 
 module wb_reg
   #(parameter ADDR=0,
-    parameter DEFAULT=0)
+    parameter DEFAULT=0,
+    parameter WIDTH=32)
    (input clk, input rst, 
     input [5:0] adr, input wr_acc,
-    input [31:0] dat_i, output reg [31:0] dat_o);
+    input [31:0] dat_i, output reg [WIDTH-1:0] dat_o);
 
    always @(posedge clk)
      if(rst)
        dat_o <= DEFAULT;
      else if(wr_acc & (adr == ADDR))
-       dat_o <= dat_i;
+       dat_o <= dat_i[WIDTH-1:0];
    
 endmodule // wb_reg
 
@@ -41,19 +42,19 @@ module simple_gemac_wb
    wire [6:0] misc_settings;
    assign {pause_request_en, pass_ucast, pass_mcast, pass_bcast, pass_pause, pass_all, pause_respect_en} = misc_settings;
 
-   wb_reg #(.ADDR(0),.DEFAULT(7'b0111001))
+   wb_reg #(.ADDR(0),.DEFAULT(7'b0111011),.WIDTH(7))
    wb_reg_settings (.clk(wb_clk), .rst(wb_rst), .adr(wb_adr[7:2]), .wr_acc(wr_acc),
 		    .dat_i(wb_dat_i), .dat_o(misc_settings) );
-   wb_reg #(.ADDR(1),.DEFAULT(0))
+   wb_reg #(.ADDR(1),.DEFAULT(0),.WIDTH(16))
    wb_reg_ucast_h (.clk(wb_clk), .rst(wb_rst), .adr(wb_adr[7:2]), .wr_acc(wr_acc),
 		   .dat_i(wb_dat_i), .dat_o(ucast_addr[47:32]) );
-   wb_reg #(.ADDR(2),.DEFAULT(0))
+   wb_reg #(.ADDR(2),.DEFAULT(0),.WIDTH(32))
    wb_reg_ucast_l (.clk(wb_clk), .rst(wb_rst), .adr(wb_adr[7:2]), .wr_acc(wr_acc),
 		   .dat_i(wb_dat_i), .dat_o(ucast_addr[31:0]) );
-   wb_reg #(.ADDR(3),.DEFAULT(0))
+   wb_reg #(.ADDR(3),.DEFAULT(0),.WIDTH(16))
    wb_reg_mcast_h (.clk(wb_clk), .rst(wb_rst), .adr(wb_adr[7:2]), .wr_acc(wr_acc),
 		   .dat_i(wb_dat_i), .dat_o(mcast_addr[47:32]) );
-   wb_reg #(.ADDR(4),.DEFAULT(0))
+   wb_reg #(.ADDR(4),.DEFAULT(0),.WIDTH(32))
    wb_reg_mcast_l (.clk(wb_clk), .rst(wb_rst), .adr(wb_adr[7:2]), .wr_acc(wr_acc),
 		   .dat_i(wb_dat_i), .dat_o(mcast_addr[31:0]) );
 
@@ -80,15 +81,15 @@ module simple_gemac_wb
    reg [15:0]  MIIRX_DATA;
    wire [2:0]  MIISTATUS;
 
-   wb_reg #(.ADDR(5),.DEFAULT(0))
+   wb_reg #(.ADDR(5),.DEFAULT(0),.WIDTH(9))
    wb_reg_miimoder (.clk(wb_clk), .rst(wb_rst), .adr(wb_adr[7:2]), .wr_acc(wr_acc),
 		    .dat_i(wb_dat_i), .dat_o({NoPre,Divider}) );
    
-   wb_reg #(.ADDR(6),.DEFAULT(0))
+   wb_reg #(.ADDR(6),.DEFAULT(0),.WIDTH(13))
    wb_reg_miiaddr (.clk(wb_clk), .rst(wb_rst), .adr(wb_adr[7:2]), .wr_acc(wr_acc),
 		   .dat_i(wb_dat_i), .dat_o(MIIADDRESS) );
    
-   wb_reg #(.ADDR(7),.DEFAULT(0))
+   wb_reg #(.ADDR(7),.DEFAULT(0),.WIDTH(16))
    wb_reg_miidata (.clk(wb_clk), .rst(wb_rst), .adr(wb_adr[7:2]), .wr_acc(wr_acc),
 		   .dat_i(wb_dat_i), .dat_o(CtrlData) );
    
@@ -133,11 +134,11 @@ module simple_gemac_wb
       .WCtrlDataStart(WCtrlDataStart), .RStatStart(RStatStart), 
       .UpdateMIIRX_DATAReg(UpdateMIIRX_DATAReg) );
 
-   wb_reg #(.ADDR(11),.DEFAULT(0))
+   wb_reg #(.ADDR(11),.DEFAULT(0),.WIDTH(16))
    wb_reg_pausetime (.clk(wb_clk), .rst(wb_rst), .adr(wb_adr[7:2]), .wr_acc(wr_acc),
 		     .dat_i(wb_dat_i), .dat_o(pause_time) );
    
-   wb_reg #(.ADDR(12),.DEFAULT(0))
+   wb_reg #(.ADDR(12),.DEFAULT(0),.WIDTH(16))
    wb_reg_pausethresh (.clk(wb_clk), .rst(wb_rst), .adr(wb_adr[7:2]), .wr_acc(wr_acc),
 		       .dat_i(wb_dat_i), .dat_o(pause_thresh) );
    
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wrapper.build b/fpga/usrp2/simple_gemac/simple_gemac_wrapper.build
index 30f65ab17..9293deca6 100755
--- a/fpga/usrp2/simple_gemac/simple_gemac_wrapper.build
+++ b/fpga/usrp2/simple_gemac/simple_gemac_wrapper.build
@@ -1 +1 @@
-iverilog -Wimplict -Wportbind -y ../control_lib/newfifo/ -y ../models/ -y . -y miim -y ../coregen/ -y ../control_lib/ -o simple_gemac_wrapper_tb simple_gemac_wrapper_tb.v
+iverilog -Wimplict -Wportbind -y ../fifo/ -y ../models/ -y . -y miim -y ../coregen/ -y ../control_lib/ -o simple_gemac_wrapper_tb simple_gemac_wrapper_tb.v
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wrapper19.build b/fpga/usrp2/simple_gemac/simple_gemac_wrapper19.build
index 4be0aac1f..b9475baa2 100755
--- a/fpga/usrp2/simple_gemac/simple_gemac_wrapper19.build
+++ b/fpga/usrp2/simple_gemac/simple_gemac_wrapper19.build
@@ -1 +1 @@
-iverilog -Wimplict -Wportbind -y ../control_lib/newfifo/ -y ../models/ -y . -y miim -y ../coregen/ -y ../control_lib/ -o simple_gemac_wrapper19_tb simple_gemac_wrapper19_tb.v
+iverilog -Wimplict -Wportbind -y ../fifo/ -y ../models/ -y . -y miim -y ../coregen/ -y ../control_lib/ -o simple_gemac_wrapper19_tb simple_gemac_wrapper19_tb.v
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wrapper19_tb.v b/fpga/usrp2/simple_gemac/simple_gemac_wrapper19_tb.v
index 7d57542dc..b61d60d30 100644
--- a/fpga/usrp2/simple_gemac/simple_gemac_wrapper19_tb.v
+++ b/fpga/usrp2/simple_gemac/simple_gemac_wrapper19_tb.v
@@ -44,12 +44,12 @@ module simple_gemac_wrapper19_tb;
    reg 	       wb_stb=0, wb_cyc=0, wb_we=0;
    wire        wb_ack;
 
-   reg [18:0]  tx_f19_data=0;
+   reg [19:0]  tx_f19_data=0;
    reg 	       tx_f19_src_rdy = 0;
    wire        tx_f19_dst_rdy;
-   wire [35:0] rx_f36_data;
-   wire        rx_f36_src_rdy;
-   wire        rx_f36_dst_rdy = 1;
+   wire [35:0] rx_f19_data;
+   wire        rx_f19_src_rdy;
+   wire        rx_f19_dst_rdy = 1;
    
    simple_gemac_wrapper19 simple_gemac_wrapper19
      (.clk125(eth_clk),  .reset(reset),
@@ -59,7 +59,7 @@ module simple_gemac_wrapper19_tb;
       .GMII_RX_ER(GMII_RX_ER), .GMII_RXD(GMII_RXD),
       //.pause_req(pause_req), .pause_time(pause_time),
 
-      .sys_clk(sys_clk), .rx_f36_data(rx_f36_data), .rx_f36_src_rdy(rx_f36_src_rdy), .rx_f36_dst_rdy(rx_f36_dst_rdy),
+      .sys_clk(sys_clk), .rx_f19_data(rx_f19_data), .rx_f19_src_rdy(rx_f19_src_rdy), .rx_f19_dst_rdy(rx_f19_dst_rdy),
       .tx_f19_data(tx_f19_data), .tx_f19_src_rdy(tx_f19_src_rdy), .tx_f19_dst_rdy(tx_f19_dst_rdy),
 
       .wb_clk(wb_clk), .wb_rst(wb_rst), .wb_stb(wb_stb), .wb_cyc(wb_cyc), .wb_ack(wb_ack), .wb_we(wb_we),
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wrapper_tb.v b/fpga/usrp2/simple_gemac/simple_gemac_wrapper_tb.v
index 26a471a49..0aadc7e93 100644
--- a/fpga/usrp2/simple_gemac/simple_gemac_wrapper_tb.v
+++ b/fpga/usrp2/simple_gemac/simple_gemac_wrapper_tb.v
@@ -24,9 +24,6 @@ module simple_gemac_wrapper_tb;
    
    wire [7:0] rx_data, tx_data;
    
-   reg [15:0] pause_time;
-   reg pause_req      = 0;
-
    wire GMII_RX_CLK   = GMII_GTX_CLK;
 
    reg [7:0] FORCE_DAT_ERR = 0;
@@ -47,7 +44,7 @@ module simple_gemac_wrapper_tb;
    reg [35:0]  tx_f36_data=0;
    reg 	       tx_f36_src_rdy = 0;
    wire        tx_f36_dst_rdy;
-   wire        rx_f36_data;
+   wire [35:0] rx_f36_data;
    wire        rx_f36_src_rdy;
    wire        rx_f36_dst_rdy = 1;
    
@@ -57,7 +54,6 @@ module simple_gemac_wrapper_tb;
       .GMII_TX_ER(GMII_TX_ER), .GMII_TXD(GMII_TXD),
       .GMII_RX_CLK(GMII_RX_CLK), .GMII_RX_DV(GMII_RX_DV),  
       .GMII_RX_ER(GMII_RX_ER), .GMII_RXD(GMII_RXD),
-      .pause_req(pause_req), .pause_time(pause_time),
 
       .sys_clk(sys_clk), .rx_f36_data(rx_f36_data), .rx_f36_src_rdy(rx_f36_src_rdy), .rx_f36_dst_rdy(rx_f36_dst_rdy),
       .tx_f36_data(tx_f36_data), .tx_f36_src_rdy(tx_f36_src_rdy), .tx_f36_dst_rdy(tx_f36_dst_rdy),
diff --git a/fpga/usrp2/timing/time_64bit.v b/fpga/usrp2/timing/time_64bit.v
index 33eb2b25a..8122cc6ea 100644
--- a/fpga/usrp2/timing/time_64bit.v
+++ b/fpga/usrp2/timing/time_64bit.v
@@ -6,7 +6,9 @@ module time_64bit
    (input clk, input rst,
     input set_stb, input [7:0] set_addr, input [31:0] set_data,  
     input pps,
-    output [63:0] vita_time, output pps_int,
+    output [63:0] vita_time,
+    output reg [63:0] vita_time_pps,
+    output pps_int,
     input exp_time_in, output exp_time_out,
     output [31:0] debug
     );
@@ -74,6 +76,10 @@ module time_64bit
        pps_del <= {pps_del[0],pps_reg};
 
    assign pps_edge = pps_del[0] & ~pps_del[1];
+
+   always @(posedge clk)
+     if(pps_edge)
+       vita_time_pps <= vita_time;
    
    always @(posedge clk)
      if(rst)
diff --git a/fpga/usrp2/timing/time_receiver.v b/fpga/usrp2/timing/time_receiver.v
index fd8651d29..897f71186 100644
--- a/fpga/usrp2/timing/time_receiver.v
+++ b/fpga/usrp2/timing/time_receiver.v
@@ -11,9 +11,14 @@ module time_receiver
    reg [3:0]  bit_count;
    wire [8:0] dataout;
    reg [8:0]  dataout_reg;
- 	      
+
+   reg 	      exp_time_in_reg, exp_time_in_reg2;
+   
+   always @(posedge clk)  exp_time_in_reg <= exp_time_in;
+   always @(posedge clk)  exp_time_in_reg2 <= exp_time_in_reg;
+   
    always @(posedge clk)
-     shiftreg <= {exp_time_in, shiftreg[9:1]};
+     shiftreg <= {exp_time_in_reg2, shiftreg[9:1]};
 
    localparam COMMA_0 = 10'h283;
    localparam COMMA_1 = 10'h17c;
@@ -65,7 +70,9 @@ module time_receiver
    localparam TAIL = 9'h1F7;
    
    reg [3:0]  state;
-   
+   reg [63:0] vita_time_pre;
+   reg 	      sync_rcvd_pre;
+      
    always @(posedge clk)
      if(rst)
        state <= STATE_IDLE;
@@ -79,42 +86,42 @@ module time_receiver
 	       state <= STATE_T0;
 	   STATE_T0 :
 	     begin
-		vita_time[63:56] <= dataout_reg[7:0];
+		vita_time_pre[63:56] <= dataout_reg[7:0];
 		state <= STATE_T1;
 	     end
 	   STATE_T1 :
 	     begin
-		vita_time[55:48] <= dataout_reg[7:0];
+		vita_time_pre[55:48] <= dataout_reg[7:0];
 		state <= STATE_T2;
 	     end
 	   STATE_T2 :
 	     begin
-		vita_time[47:40] <= dataout_reg[7:0];
+		vita_time_pre[47:40] <= dataout_reg[7:0];
 		state <= STATE_T3;
 	     end
 	   STATE_T3 :
 	     begin
-		vita_time[39:32] <= dataout_reg[7:0];
+		vita_time_pre[39:32] <= dataout_reg[7:0];
 		state <= STATE_T4;
 	     end
 	   STATE_T4 :
 	     begin
-		vita_time[31:24] <= dataout_reg[7:0];
+		vita_time_pre[31:24] <= dataout_reg[7:0];
 		state <= STATE_T5;
 	     end
 	   STATE_T5 :
 	     begin
-		vita_time[23:16] <= dataout_reg[7:0];
+		vita_time_pre[23:16] <= dataout_reg[7:0];
 		state <= STATE_T6;
 	     end
 	   STATE_T6 :
 	     begin
-		vita_time[15:8] <= dataout_reg[7:0];
+		vita_time_pre[15:8] <= dataout_reg[7:0];
 		state <= STATE_T7;
 	     end
 	   STATE_T7 :
 	     begin
-		vita_time[7:0] <= dataout_reg[7:0];
+		vita_time_pre[7:0] <= dataout_reg[7:0];
 		state <= STATE_TAIL;
 	     end
 	   STATE_TAIL :
@@ -123,8 +130,11 @@ module time_receiver
    
    always @(posedge clk)
      if(rst)
-       sync_rcvd <= 0;
+       sync_rcvd_pre <= 0;
      else
-       sync_rcvd <= (complete_word & (state == STATE_TAIL) & (dataout_reg[8:0] == TAIL));
+       sync_rcvd_pre <= (complete_word & (state == STATE_TAIL) & (dataout_reg[8:0] == TAIL));
+
+   always @(posedge clk) sync_rcvd <= sync_rcvd_pre;
+   always @(posedge clk) vita_time <= vita_time_pre;
    
 endmodule // time_sender
diff --git a/fpga/usrp2/top/u1e/u1e_core.v b/fpga/usrp2/top/u1e/u1e_core.v
index e7e798b34..d590b4fb1 100644
--- a/fpga/usrp2/top/u1e/u1e_core.v
+++ b/fpga/usrp2/top/u1e/u1e_core.v
@@ -36,13 +36,13 @@ module u1e_core
    localparam SR_TX_CTRL = 24;   // 2 regs
    localparam SR_TIME64 = 28;    // 4 regs
 
-   wire [7:0]	COMPAT_NUM = 8'd2;
+   wire [7:0]	COMPAT_NUM = 8'd3;
    
    wire 	wb_clk = clk_fpga;
    wire 	wb_rst = rst_fpga;
    
    wire 	pps_int;
-   wire [63:0] 	vita_time;
+   wire [63:0] 	vita_time, vita_time_pps;
    reg [15:0] 	reg_leds, reg_cgen_ctrl, reg_test, xfer_rate;
    
    wire [7:0] 	set_addr;
@@ -299,7 +299,6 @@ module u1e_core
       .sf_dat_o(sf_dat_mosi),.sf_adr_o(sf_adr),.sf_sel_o(sf_sel),.sf_we_o(sf_we),.sf_cyc_o(sf_cyc),.sf_stb_o(sf_stb),
       .sf_dat_i(sf_dat_miso),.sf_ack_i(sf_ack),.sf_err_i(0),.sf_rty_i(0) );
 
-   assign s7_ack = 0;
    assign s8_ack = 0;   assign s9_ack = 0;   assign sa_ack = 0;   assign sb_ack = 0;
    assign sc_ack = 0;   assign sd_ack = 0;   assign se_ack = 0;   assign sf_ack = 0;
 
@@ -427,13 +426,26 @@ module u1e_core
       .we_i(s6_we), .stb_i(s6_stb), .cyc_i(s6_cyc), .ack_o(s6_ack),
       .run_rx(run_rx), .run_tx(run_tx), .ctrl_lines(atr_lines));
 
+   // /////////////////////////////////////////////////////////////////////////
+   // Readback mux 32 -- Slave #7
+
+   wb_readback_mux_16LE readback_mux_32
+     (.wb_clk_i(wb_clk), .wb_rst_i(wb_rst), .wb_stb_i(s7_stb),
+      .wb_adr_i(s7_adr), .wb_dat_o(s7_dat_miso), .wb_ack_o(s7_ack),
+
+      .word00(vita_time[63:32]),    .word01(vita_time[31:0]),
+      .word02(vita_time_pps[63:32]),.word03(vita_time_pps[31:0]),
+      .word04(32'b0),.word05(32'b0),.word06(32'b0),.word07(32'b0),
+      .word08(32'b0),.word09(32'b0),.word10(32'b0),.word11(32'b0),
+      .word12(32'b0),.word13(32'b0),.word14(32'b0),.word15(32'b0)
+      );
 
    // /////////////////////////////////////////////////////////////////////////
    // VITA Timing
 
    time_64bit #(.TICKS_PER_SEC(32'd64000000),.BASE(SR_TIME64)) time_64bit
      (.clk(wb_clk), .rst(wb_rst), .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
-      .pps(pps_in), .vita_time(vita_time), .pps_int(pps_int));
+      .pps(pps_in), .vita_time(vita_time), .vita_time_pps(vita_time_pps), .pps_int(pps_int));
    
    // /////////////////////////////////////////////////////////////////////////////////////
    // Debug circuitry
diff --git a/fpga/usrp2/top/u2_rev3/u2_core.v b/fpga/usrp2/top/u2_rev3/u2_core.v
index 30b47b818..ab2ed49f0 100644
--- a/fpga/usrp2/top/u2_rev3/u2_core.v
+++ b/fpga/usrp2/top/u2_rev3/u2_core.v
@@ -3,7 +3,7 @@
 // ////////////////////////////////////////////////////////////////////////////////
 
 module u2_core
-  #(parameter RAM_SIZE=32768)
+  #(parameter RAM_SIZE=16384, parameter RAM_AW=14)
   (// Clocks
    input dsp_clk,
    input wb_clk,
@@ -163,7 +163,7 @@ module u2_core
    wire 	ram_loader_rst, wb_rst, dsp_rst;
    assign dsp_rst = wb_rst;
 
-   wire [31:0] 	status, status_b0, status_b1, status_b2, status_b3, status_b4, status_b5, status_b6, status_b7;
+   wire [31:0] 	status;
    wire 	bus_error, spi_int, i2c_int, pps_int, onetime_int, periodic_int, buffer_int;
    wire 	proc_int, overrun, underrun, uart_tx_int, uart_rx_int;
 
@@ -180,7 +180,7 @@ module u2_core
    wire 	serdes_link_up;
    wire 	epoch;
    wire [31:0] 	irq;
-   wire [63:0] 	vita_time;
+   wire [63:0] 	vita_time, vita_time_pps;
    
    wire 	 run_rx, run_tx;
    reg 		 run_rx_d1;
@@ -197,14 +197,14 @@ module u2_core
    wire [dw-1:0] s0_dat_o, s1_dat_o, s0_dat_i, s1_dat_i, s2_dat_o, s3_dat_o, s2_dat_i, s3_dat_i,
 		 s4_dat_o, s5_dat_o, s4_dat_i, s5_dat_i, s6_dat_o, s7_dat_o, s6_dat_i, s7_dat_i,
 		 s8_dat_o, s9_dat_o, s8_dat_i, s9_dat_i, sa_dat_o, sa_dat_i, sb_dat_i, sb_dat_o,
-		 sc_dat_i, sc_dat_o, sd_dat_i, sd_dat_o, se_dat_i, se_dat_o;
-   wire [aw-1:0] m0_adr,s0_adr,s1_adr,s2_adr,s3_adr,s4_adr,s5_adr,s6_adr,s7_adr,s8_adr,s9_adr,sa_adr,sb_adr,sc_adr, sd_adr, se_adr;
-   wire [sw-1:0] m0_sel,s0_sel,s1_sel,s2_sel,s3_sel,s4_sel,s5_sel,s6_sel,s7_sel,s8_sel,s9_sel,sa_sel,sb_sel,sc_sel, sd_sel, se_sel;
-   wire 	 m0_ack,s0_ack,s1_ack,s2_ack,s3_ack,s4_ack,s5_ack,s6_ack,s7_ack,s8_ack,s9_ack,sa_ack,sb_ack,sc_ack, sd_ack, se_ack;
-   wire 	 m0_stb,s0_stb,s1_stb,s2_stb,s3_stb,s4_stb,s5_stb,s6_stb,s7_stb,s8_stb,s9_stb,sa_stb,sb_stb,sc_stb, sd_stb, se_stb;
-   wire 	 m0_cyc,s0_cyc,s1_cyc,s2_cyc,s3_cyc,s4_cyc,s5_cyc,s6_cyc,s7_cyc,s8_cyc,s9_cyc,sa_cyc,sb_cyc,sc_cyc, sd_cyc, se_cyc;
+		 sc_dat_i, sc_dat_o, sd_dat_i, sd_dat_o, se_dat_i, se_dat_o, sf_dat_i, sf_dat_o;
+   wire [aw-1:0] m0_adr,s0_adr,s1_adr,s2_adr,s3_adr,s4_adr,s5_adr,s6_adr,s7_adr,s8_adr,s9_adr,sa_adr,sb_adr,sc_adr, sd_adr, se_adr, sf_adr;
+   wire [sw-1:0] m0_sel,s0_sel,s1_sel,s2_sel,s3_sel,s4_sel,s5_sel,s6_sel,s7_sel,s8_sel,s9_sel,sa_sel,sb_sel,sc_sel, sd_sel, se_sel, sf_sel;
+   wire 	 m0_ack,s0_ack,s1_ack,s2_ack,s3_ack,s4_ack,s5_ack,s6_ack,s7_ack,s8_ack,s9_ack,sa_ack,sb_ack,sc_ack, sd_ack, se_ack, sf_ack;
+   wire 	 m0_stb,s0_stb,s1_stb,s2_stb,s3_stb,s4_stb,s5_stb,s6_stb,s7_stb,s8_stb,s9_stb,sa_stb,sb_stb,sc_stb, sd_stb, se_stb, sf_stb;
+   wire 	 m0_cyc,s0_cyc,s1_cyc,s2_cyc,s3_cyc,s4_cyc,s5_cyc,s6_cyc,s7_cyc,s8_cyc,s9_cyc,sa_cyc,sb_cyc,sc_cyc, sd_cyc, se_cyc, sf_cyc;
    wire 	 m0_err, m0_rty;
-   wire 	 m0_we,s0_we,s1_we,s2_we,s3_we,s4_we,s5_we,s6_we,s7_we,s8_we,s9_we,sa_we,sb_we,sc_we,sd_we, se_we;
+   wire 	 m0_we,s0_we,s1_we,s2_we,s3_we,s4_we,s5_we,s6_we,s7_we,s8_we,s9_we,sa_we,sb_we,sc_we,sd_we,se_we,sf_we;
    
    wb_1master #(.decode_w(6),
 		.s0_addr(6'b0000_00),.s0_mask(6'b100000),
@@ -257,8 +257,9 @@ module u2_core
       .sd_dat_i(sd_dat_i),.sd_ack_i(sd_ack),.sd_err_i(0),.sd_rty_i(0),
       .se_dat_o(se_dat_o),.se_adr_o(se_adr),.se_sel_o(se_sel),.se_we_o(se_we),.se_cyc_o(se_cyc),.se_stb_o(se_stb),
       .se_dat_i(se_dat_i),.se_ack_i(se_ack),.se_err_i(0),.se_rty_i(0),
-      .sf_dat_i(0),.sf_ack_i(0),.sf_err_i(0),.sf_rty_i(0)  );
-   
+      .sf_dat_o(sf_dat_o),.sf_adr_o(sf_adr),.sf_sel_o(sf_sel),.sf_we_o(sf_we),.sf_cyc_o(sf_cyc),.sf_stb_o(sf_stb),
+      .sf_dat_i(sf_dat_i),.sf_ack_i(sf_ack),.sf_err_i(0),.sf_rty_i(0));
+      
    //////////////////////////////////////////////////////////////////////////////////////////
    // Reset Controller
    system_control sysctrl (.wb_clk_i(wb_clk), // .por_i(por),
@@ -286,13 +287,11 @@ module u2_core
    // ///////////////////////////////////////////////////////////////////
    // RAM Loader
 
-   wire [31:0] 	 ram_loader_dat, if_dat;
+   wire [31:0] 	 ram_loader_dat;
    wire [15:0] 	 ram_loader_adr;
-   wire [14:0] 	 if_adr;
    wire [3:0] 	 ram_loader_sel;
    wire 	 ram_loader_stb, ram_loader_we;
-   wire 	 iwb_ack, iwb_stb;
-   ram_loader #(.AWIDTH(16),.RAM_SIZE(RAM_SIZE))
+   ram_loader #(.AWIDTH(aw),.RAM_SIZE(RAM_SIZE))
      ram_loader (.wb_clk(wb_clk),.dsp_clk(dsp_clk),.ram_loader_rst(ram_loader_rst),
 		 .wb_dat(ram_loader_dat),.wb_adr(ram_loader_adr),
 		 .wb_stb(ram_loader_stb),.wb_sel(ram_loader_sel),
@@ -308,36 +307,34 @@ module u2_core
    
    // /////////////////////////////////////////////////////////////////////////
    // Processor
-   aeMB_core_BE #(.ISIZ(16),.DSIZ(16),.MUL(0),.BSF(1))
-     aeMB (.sys_clk_i(wb_clk), .sys_rst_i(wb_rst),
-	   // Instruction Wishbone bus to I-RAM
-	   .if_adr(if_adr),
-	   .if_dat(if_dat),
+
+   assign 	 bus_error = m0_err | m0_rty;
+
+   wire [63:0] zpu_status;
+   zpu_wb_top #(.dat_w(dw), .adr_w(aw), .sel_w(sw))
+     zpu_top0 (.clk(wb_clk), .rst(wb_rst), .enb(ram_loader_done),
 	   // Data Wishbone bus to system bus fabric
-	   .dwb_we_o(m0_we),.dwb_stb_o(m0_stb),.dwb_dat_o(m0_dat_i),.dwb_adr_o(m0_adr),
-	   .dwb_dat_i(m0_dat_o),.dwb_ack_i(m0_ack),.dwb_sel_o(m0_sel),.dwb_cyc_o(m0_cyc),
+	   .we_o(m0_we),.stb_o(m0_stb),.dat_o(m0_dat_i),.adr_o(m0_adr),
+	   .dat_i(m0_dat_o),.ack_i(m0_ack),.sel_o(m0_sel),.cyc_o(m0_cyc),
 	   // Interrupts and exceptions
-	   .sys_int_i(proc_int),.sys_exc_i(bus_error) );
-   
-   assign 	 bus_error = m0_err | m0_rty;
+	   .stack_start(16'h3ff8), .zpu_status(zpu_status), .interrupt(proc_int & 1'b0));
    
    // /////////////////////////////////////////////////////////////////////////
    // Dual Ported RAM -- D-Port is Slave #0 on main Wishbone
    // I-port connects directly to processor and ram loader
 
    wire 	 flush_icache;
-   ram_harvard #(.AWIDTH(15),.RAM_SIZE(RAM_SIZE),.ICWIDTH(7),.DCWIDTH(6))
+   ram_harvard #(.AWIDTH(RAM_AW),.RAM_SIZE(RAM_SIZE),.ICWIDTH(7),.DCWIDTH(6))
      sys_ram(.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),
 	     
-	     .ram_loader_adr_i(ram_loader_adr[14:0]), .ram_loader_dat_i(ram_loader_dat),
+	     .ram_loader_adr_i(ram_loader_adr[RAM_AW-1:0]), .ram_loader_dat_i(ram_loader_dat),
 	     .ram_loader_stb_i(ram_loader_stb), .ram_loader_sel_i(ram_loader_sel),
 	     .ram_loader_we_i(ram_loader_we),
 	     .ram_loader_done_i(ram_loader_done),
 	     
-	     .if_adr(if_adr), 
-	     .if_data(if_dat), 
+	     .if_adr(16'b0), .if_data(),
 	     
-	     .dwb_adr_i(s0_adr[14:0]), .dwb_dat_i(s0_dat_o), .dwb_dat_o(s0_dat_i),
+	     .dwb_adr_i(s0_adr[RAM_AW-1:0]), .dwb_dat_i(s0_dat_o), .dwb_dat_o(s0_dat_i),
 	     .dwb_we_i(s0_we), .dwb_ack_o(s0_ack), .dwb_stb_i(s0_stb), .dwb_sel_i(s0_sel),
 	     .flush_icache(flush_icache));
    
@@ -359,34 +356,33 @@ module u2_core
    wire 	 wr3_ready_i, wr3_ready_o;
    wire [3:0] 	 wr0_flags, wr1_flags, wr2_flags, wr3_flags;
    wire [31:0] 	 wr0_dat, wr1_dat, wr2_dat, wr3_dat;
-   
-   buffer_pool #(.BUF_SIZE(9), .SET_ADDR(SR_BUF_POOL)) buffer_pool
+
+   wire [35:0] 	 tx_err_data;
+   wire 	 tx_err_src_rdy, tx_err_dst_rdy;
+
+   wire [31:0] router_debug;
+
+   packet_router #(.BUF_SIZE(9), .UDP_BASE(SR_UDP_SM), .CTRL_BASE(SR_BUF_POOL)) packet_router
      (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),
-      .wb_we_i(s1_we),.wb_stb_i(s1_stb),.wb_adr_i(s1_adr),.wb_dat_i(s1_dat_o),   
+      .wb_we_i(s1_we),.wb_stb_i(s1_stb),.wb_adr_i(s1_adr),.wb_dat_i(s1_dat_o),
       .wb_dat_o(s1_dat_i),.wb_ack_o(s1_ack),.wb_err_o(),.wb_rty_o(),
-   
-      .stream_clk(dsp_clk), .stream_rst(dsp_rst),
+
       .set_stb(set_stb_dsp), .set_addr(set_addr_dsp), .set_data(set_data_dsp),
-      .status(status),.sys_int_o(buffer_int),
-
-      .s0(status_b0),.s1(status_b1),.s2(status_b2),.s3(status_b3),
-      .s4(status_b4),.s5(status_b5),.s6(status_b6),.s7(status_b7),
-
-      // Write Interfaces
-      .wr0_data_i(wr0_dat), .wr0_flags_i(wr0_flags), .wr0_ready_i(wr0_ready_i), .wr0_ready_o(wr0_ready_o),
-      .wr1_data_i(wr1_dat), .wr1_flags_i(wr1_flags), .wr1_ready_i(wr1_ready_i), .wr1_ready_o(wr1_ready_o),
-      .wr2_data_i(wr2_dat), .wr2_flags_i(wr2_flags), .wr2_ready_i(wr2_ready_i), .wr2_ready_o(wr2_ready_o),
-      .wr3_data_i(wr3_dat), .wr3_flags_i(wr3_flags), .wr3_ready_i(wr3_ready_i), .wr3_ready_o(wr3_ready_o),
-      // Read Interfaces
-      .rd0_data_o(rd0_dat), .rd0_flags_o(rd0_flags), .rd0_ready_i(rd0_ready_i), .rd0_ready_o(rd0_ready_o),
-      .rd1_data_o(rd1_dat), .rd1_flags_o(rd1_flags), .rd1_ready_i(rd1_ready_i), .rd1_ready_o(rd1_ready_o),
-      .rd2_data_o(rd2_dat), .rd2_flags_o(rd2_flags), .rd2_ready_i(rd2_ready_i), .rd2_ready_o(rd2_ready_o),
-      .rd3_data_o(rd3_dat), .rd3_flags_o(rd3_flags), .rd3_ready_i(rd3_ready_i), .rd3_ready_o(rd3_ready_o)
+
+      .stream_clk(dsp_clk), .stream_rst(dsp_rst), .stream_clr(1'b0),
+
+      .status(status), .sys_int_o(buffer_int), .debug(router_debug),
+
+      .ser_inp_data({wr0_flags, wr0_dat}), .ser_inp_valid(wr0_ready_i), .ser_inp_ready(wr0_ready_o),
+      .dsp_inp_data({wr1_flags, wr1_dat}), .dsp_inp_valid(wr1_ready_i), .dsp_inp_ready(wr1_ready_o),
+      .eth_inp_data({wr2_flags, wr2_dat}), .eth_inp_valid(wr2_ready_i), .eth_inp_ready(wr2_ready_o),
+      .err_inp_data(tx_err_data), .err_inp_ready(tx_err_dst_rdy), .err_inp_valid(tx_err_src_rdy),
+
+      .ser_out_data({rd0_flags, rd0_dat}), .ser_out_valid(rd0_ready_o), .ser_out_ready(rd0_ready_i),
+      .dsp_out_data({rd1_flags, rd1_dat}), .dsp_out_valid(rd1_ready_o), .dsp_out_ready(rd1_ready_i),
+      .eth_out_data({rd2_flags, rd2_dat}), .eth_out_valid(rd2_ready_o), .eth_out_ready(rd2_ready_i)
       );
 
-   wire [31:0] 	 status_enc;
-   priority_enc priority_enc (.in({16'b0,status[15:0]}), .out(status_enc));
-   
    // /////////////////////////////////////////////////////////////////////////
    // SPI -- Slave #2
    spi_top shared_spi
@@ -419,31 +415,25 @@ module u2_core
    // /////////////////////////////////////////////////////////////////////////
    // Buffer Pool Status -- Slave #5   
    
-   reg [31:0] 	 cycle_count;
-   always @(posedge wb_clk)
-     if(wb_rst)
-       cycle_count <= 0;
-     else
-       cycle_count <= cycle_count + 1;
-
    //compatibility number -> increment when the fpga has been sufficiently altered
-   localparam compat_num = 32'd3;
+   localparam compat_num = 32'd4;
 
    wb_readback_mux buff_pool_status
      (.wb_clk_i(wb_clk), .wb_rst_i(wb_rst), .wb_stb_i(s5_stb),
       .wb_adr_i(s5_adr), .wb_dat_o(s5_dat_i), .wb_ack_o(s5_ack),
-      
-      .word00(status_b0),.word01(status_b1),.word02(status_b2),.word03(status_b3),
-      .word04(status_b4),.word05(status_b5),.word06(status_b6),.word07(status_b7),
+
+      .word00(32'b0),.word01(32'b0),.word02(32'b0),.word03(32'b0),
+      .word04(32'b0),.word05(32'b0),.word06(32'b0),.word07(32'b0),
       .word08(status),.word09({sim_mode,27'b0,clock_divider[3:0]}),.word10(vita_time[63:32]),
-      .word11(vita_time[31:0]),.word12(compat_num),.word13(irq),.word14(status_enc),.word15(cycle_count)
+      .word11(vita_time[31:0]),.word12(compat_num),.word13(irq),
+      .word14(vita_time_pps[63:32]),.word15(vita_time_pps[31:0])
       );
 
    // /////////////////////////////////////////////////////////////////////////
    // Ethernet MAC  Slave #6
 
    wire [18:0] 	 rx_f19_data, tx_f19_data;
-   wire 	 rx_f19_src_rdy, rx_f19_dst_rdy, rx_f36_src_rdy, rx_f36_dst_rdy;
+   wire 	 rx_f19_src_rdy, rx_f19_dst_rdy, tx_f19_src_rdy, tx_f19_dst_rdy;
    
    simple_gemac_wrapper19 #(.RXFIFOSIZE(11), .TXFIFOSIZE(6)) simple_gemac_wrapper19
      (.clk125(clk_to_mac),  .reset(wb_rst),
@@ -459,37 +449,39 @@ module u2_core
       .mdio(MDIO), .mdc(MDC),
       .debug(debug_mac));
 
-   wire [35:0] 	 udp_tx_data, udp_rx_data;
-   wire 	 udp_tx_src_rdy, udp_tx_dst_rdy, udp_rx_src_rdy, udp_rx_dst_rdy;
-   
-   udp_wrapper #(.BASE(SR_UDP_SM)) udp_wrapper
+   wire [35:0] 	 rx_f36_data, tx_f36_data;
+   wire 	 rx_f36_src_rdy, rx_f36_dst_rdy, tx_f36_src_rdy, tx_f36_dst_rdy;
+
+   wire [18:0] 	 _rx_f19_data;
+   wire 	 _rx_f19_src_rdy, _rx_f19_dst_rdy;
+
+   //mac rx to eth input...
+   fifo19_rxrealign fifo19_rxrealign
      (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
-      .set_stb(set_stb_dsp), .set_addr(set_addr_dsp), .set_data(set_data_dsp),
-      .rx_f19_data(rx_f19_data), .rx_f19_src_rdy_i(rx_f19_src_rdy), .rx_f19_dst_rdy_o(rx_f19_dst_rdy),
-      .tx_f19_data(tx_f19_data), .tx_f19_src_rdy_o(tx_f19_src_rdy), .tx_f19_dst_rdy_i(tx_f19_dst_rdy),
-      .rx_f36_data(udp_rx_data), .rx_f36_src_rdy_o(udp_rx_src_rdy), .rx_f36_dst_rdy_i(udp_rx_dst_rdy),
-      .tx_f36_data(udp_tx_data), .tx_f36_src_rdy_i(udp_tx_src_rdy), .tx_f36_dst_rdy_o(udp_tx_dst_rdy),
-      .debug(debug_udp) );
+      .datain(rx_f19_data), .src_rdy_i(rx_f19_src_rdy), .dst_rdy_o(rx_f19_dst_rdy),
+      .dataout(_rx_f19_data), .src_rdy_o(_rx_f19_src_rdy), .dst_rdy_i(_rx_f19_dst_rdy) );
 
-   wire [35:0] 	 tx_err_data, udp1_tx_data;
-   wire 	 tx_err_src_rdy, tx_err_dst_rdy, udp1_tx_src_rdy, udp1_tx_dst_rdy;
-   
-   fifo_cascade #(.WIDTH(36), .SIZE(ETH_TX_FIFOSIZE)) tx_eth_fifo
+   fifo19_to_fifo36 eth_inp_fifo19_to_fifo36
      (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
-      .datain({rd2_flags,rd2_dat}), .src_rdy_i(rd2_ready_o), .dst_rdy_o(rd2_ready_i),
-      .dataout(udp1_tx_data), .src_rdy_o(udp1_tx_src_rdy), .dst_rdy_i(udp1_tx_dst_rdy));
+      .f19_datain(_rx_f19_data),  .f19_src_rdy_i(_rx_f19_src_rdy), .f19_dst_rdy_o(_rx_f19_dst_rdy),
+      .f36_dataout(rx_f36_data), .f36_src_rdy_o(rx_f36_src_rdy), .f36_dst_rdy_i(rx_f36_dst_rdy) );
 
-   fifo36_mux #(.prio(0)) mux_err_stream
-     (.clk(dsp_clk), .reset(dsp_reset), .clear(0),
-      .data0_i(udp1_tx_data), .src0_rdy_i(udp1_tx_src_rdy), .dst0_rdy_o(udp1_tx_dst_rdy),
-      .data1_i(tx_err_data), .src1_rdy_i(tx_err_src_rdy), .dst1_rdy_o(tx_err_dst_rdy),
-      .data_o(udp_tx_data), .src_rdy_o(udp_tx_src_rdy), .dst_rdy_i(udp_tx_dst_rdy));
-   
    fifo_cascade #(.WIDTH(36), .SIZE(ETH_RX_FIFOSIZE)) rx_eth_fifo
      (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
-      .datain(udp_rx_data), .src_rdy_i(udp_rx_src_rdy), .dst_rdy_o(udp_rx_dst_rdy),
+      .datain(rx_f36_data), .src_rdy_i(rx_f36_src_rdy), .dst_rdy_o(rx_f36_dst_rdy),
       .dataout({wr2_flags,wr2_dat}), .src_rdy_o(wr2_ready_i), .dst_rdy_i(wr2_ready_o));
-   
+
+   //eth output to mac tx...
+   fifo_cascade #(.WIDTH(36), .SIZE(ETH_TX_FIFOSIZE)) tx_eth_fifo
+     (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
+      .datain({rd2_flags,rd2_dat}), .src_rdy_i(rd2_ready_o), .dst_rdy_o(rd2_ready_i),
+      .dataout(tx_f36_data), .src_rdy_o(tx_f36_src_rdy), .dst_rdy_i(tx_f36_dst_rdy));
+
+   fifo36_to_fifo19 eth_out_fifo36_to_fifo19
+     (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
+      .f36_datain(tx_f36_data),  .f36_src_rdy_i(tx_f36_src_rdy), .f36_dst_rdy_o(tx_f36_dst_rdy),
+      .f19_dataout(tx_f19_data), .f19_src_rdy_o(tx_f19_src_rdy), .f19_dst_rdy_i(tx_f19_dst_rdy) );
+
    // /////////////////////////////////////////////////////////////////////////
    // Settings Bus -- Slave #7
    settings_bus settings_bus
@@ -691,7 +683,8 @@ module u2_core
 
    vita_tx_chain #(.BASE_CTRL(SR_TX_CTRL), .BASE_DSP(SR_TX_DSP), 
 		   .REPORT_ERROR(1), .DO_FLOW_CONTROL(1),
-		   .PROT_ENG_FLAGS(1), .USE_TRANS_HEADER(1)) 
+		   .PROT_ENG_FLAGS(1), .USE_TRANS_HEADER(1),
+		   .DSP_NUMBER(0))
    vita_tx_chain
      (.clk(dsp_clk), .reset(dsp_rst),
       .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp),
@@ -721,13 +714,13 @@ module u2_core
    // VITA Timing
 
    wire [31:0] 	 debug_sync;
-   
+
    time_64bit #(.TICKS_PER_SEC(32'd100000000),.BASE(SR_TIME64)) time_64bit
      (.clk(dsp_clk), .rst(dsp_rst), .set_stb(set_stb_dsp), .set_addr(set_addr_dsp), .set_data(set_data_dsp),
-      .pps(pps_in), .vita_time(vita_time), .pps_int(pps_int),
+      .pps(pps_in), .vita_time(vita_time), .vita_time_pps(vita_time_pps), .pps_int(pps_int),
       .exp_time_in(exp_time_in), .exp_time_out(exp_time_out),
       .debug(debug_sync));
-   
+
    // /////////////////////////////////////////////////////////////////////////////////////////
    // Debug Pins
   
diff --git a/fpga/usrp2/top/u2_rev3/u2_rev3.v b/fpga/usrp2/top/u2_rev3/u2_rev3.v
index f2bba6c50..759f7b7b8 100644
--- a/fpga/usrp2/top/u2_rev3/u2_rev3.v
+++ b/fpga/usrp2/top/u2_rev3/u2_rev3.v
@@ -471,7 +471,7 @@ module u2_rev3
    //
    
    
-   u2_core #(.RAM_SIZE(32768))
+   u2_core #(.RAM_SIZE(16384), .RAM_AW(14))
      u2_core(.dsp_clk           (dsp_clk),
 	     .wb_clk            (wb_clk),
 	     .clock_ready       (clock_ready),
diff --git a/fpga/usrp2/top/u2plus/bootloader.rmi b/fpga/usrp2/top/u2plus/bootloader.rmi
index 7c15699db..a7d051630 100644
--- a/fpga/usrp2/top/u2plus/bootloader.rmi
+++ b/fpga/usrp2/top/u2plus/bootloader.rmi
@@ -1,231 +1,231 @@
-defparam bootram.RAM0.INIT_00=256'h00000000_00000000_00000000_b80801c0_00000000_b808175c_00000000_b8080050;
-defparam bootram.RAM0.INIT_01=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_b8081764;
-defparam bootram.RAM0.INIT_02=256'h3020ffe0_b0000000_30401e70_31a01e98_00000000_00000000_00000000_00000000;
-defparam bootram.RAM0.INIT_03=256'h3021ffe4_e060f800_b0000000_b8000000_30a30000_b9f40668_80000000_b9f400cc;
-defparam bootram.RAM0.INIT_04=256'he8830000_e8601e78_80000000_99fc2000_f8601e78_b8000044_bc030014_f9e10000;
-defparam bootram.RAM0.INIT_05=256'h80000000_99fc1800_30a01e8c_bc030010_30600000_b0000000_30630004_be24ffec;
-defparam bootram.RAM0.INIT_06=256'h30600000_b0000000_3021001c_b60f0008_e9e10000_f060f800_b0000000_30600001;
-defparam bootram.RAM0.INIT_07=256'h80000000_99fc1800_bc03000c_30c0f804_b0000000_30a01e8c_f9e10000_3021ffe4;
-defparam bootram.RAM0.INIT_08=256'h80000000_99fc2000_bc04000c_30a01e90_bc030014_30800000_b0000000_e8601e90;
-defparam bootram.RAM0.INIT_09=256'h06463800_20e01e98_20c01e98_f9e10000_2021ffec_3021001c_b60f0008_e9e10000;
-defparam bootram.RAM0.INIT_0A=256'hb0000000_20c0f800_b0000000_bc92fff4_06463800_20c60004_f8060000_bc720014;
-defparam bootram.RAM0.INIT_0B=256'hb9f415f8_bc92fff4_06463800_20c60004_f8060000_bc720014_06463800_20e0f82c;
-defparam bootram.RAM0.INIT_0C=256'h32630000_20a00000_b9f401c8_20e00000_20c00000_80000000_b9f41778_80000000;
-defparam bootram.RAM0.INIT_0D=256'h20210014_b60f0008_30730000_c9e10000_80000000_b9f415c4_80000000_b9f41780;
-defparam bootram.RAM0.INIT_0E=256'he9e10000_f9610004_fa410010_95608001_fa21000c_f9610008_f9e10000_3021ffec;
-defparam bootram.RAM0.INIT_0F=256'hbc050018_30210014_b62e0000_ea410010_ea21000c_e9610008_940bc001_e9610004;
-defparam bootram.RAM0.INIT_10=256'h3021ff2c_80000000_b60f0008_bc32fff4_16432800_30630001_80000000_10600000;
-defparam bootram.RAM0.INIT_11=256'hb9f4062c_32c1001c_3261004c_f8610028_f9e10000_fac100d0_fa6100cc_3061002c;
-defparam bootram.RAM0.INIT_12=256'h22407fff_e8610024_bc230038_30a01984_10b30000_b9f40da4_10d60000_10b30000;
-defparam bootram.RAM0.INIT_13=256'h30a01984_bc120040_aa430001_30a0194c_e061001c_10a30000_be520034_16439003;
-defparam bootram.RAM0.INIT_14=256'he8e10020_e8c10028_b800ffa8_80000000_b9f406c0_b800ffb4_80000000_b9f406cc;
-defparam bootram.RAM0.INIT_15=256'h80000000_b9f40694_b800ff88_80000000_b9f406a0_30a0194c_80000000_b9f4155c;
-defparam bootram.RAM0.INIT_16=256'hb800ff60_80000000_b9f40678_30a01950_80000000_b9f411e8_30a08000_b0000000;
-defparam bootram.RAM0.INIT_17=256'hbe030020_30a00050_31000001_30e1001c_30c000f7_f9e10000_a46500ff_3021ffe0;
-defparam bootram.RAM0.INIT_18=256'hb810ffe8_30210020_b60f0008_e9e10000_80000000_b9f40330_f081001c_3080005e;
-defparam bootram.RAM0.INIT_19=256'h31000001_b9f40280_f9e10000_30e1001c_30c000f7_30a00050_3021ffe0_308000dc;
-defparam bootram.RAM0.INIT_1A=256'h3021ffdc_30210020_b60f0008_6463001f_3063ffff_a863005e_e9e10000_e061001c;
-defparam bootram.RAM0.INIT_1B=256'h30a0a120_b0000007_9403c001_ac640002_94808001_fac10020_fa61001c_f9e10000;
-defparam bootram.RAM0.INIT_1C=256'hb9f40ea8_80000000_b9f4082c_f800200c_80000000_b9f4fe74_f860200c_306000ff;
-defparam bootram.RAM0.INIT_1D=256'h80000000_b9f4ff6c_80000000_b9f4059c_30a01988_80000000_b9f409ec_80000000;
-defparam bootram.RAM0.INIT_1E=256'h30a00000_b0000030_bc160100_bc130134_a6632000_e8603334_12c30000_be23017c;
-defparam bootram.RAM0.INIT_1F=256'hb0000000_80000000_b9f40558_30a01b04_12c30000_be030068_80000000_b9f41180;
-defparam bootram.RAM0.INIT_20=256'hb9f41094_30a08000_b0000000_30c07c00_b9f40e70_30a00000_b0000030_30e08000;
-defparam bootram.RAM0.INIT_21=256'he9e10000_30600001_10a00000_b9f41244_80000000_b9f40524_30a01b30_80000000;
-defparam bootram.RAM0.INIT_22=256'hb000003f_80000000_b9f404f8_30a01b6c_30210024_b60f0008_eac10020_ea61001c;
-defparam bootram.RAM0.INIT_23=256'h80000000_b9f404d4_30a019f8_12630000_be230024_80000000_b9f410fc_30a00000;
-defparam bootram.RAM0.INIT_24=256'h30a00000_b000003f_30e08000_b0000000_10730000_b810ffb4_80000000_b9f4fd9c;
-defparam bootram.RAM0.INIT_25=256'hb9f40490_30a019bc_80000000_b9f41000_30a08000_b0000000_30c07c00_b9f40ddc;
-defparam bootram.RAM0.INIT_26=256'h80000000_b9f40474_30a01a50_30600001_b810ff70_10b60000_b9f411b0_80000000;
-defparam bootram.RAM0.INIT_27=256'h80000000_b9f40454_30a01ab4_bc230098_80000000_b9f41000_30a00000_b0000018;
-defparam bootram.RAM0.INIT_28=256'h80000000_b9f41048_30a00000_b000003f_80000000_b9f40444_30a0199c_b800fed8;
-defparam bootram.RAM0.INIT_29=256'hb9f4fda4_b800fe9c_80000000_b9f4fcec_80000000_b9f40424_30a019f8_bc230028;
-defparam bootram.RAM0.INIT_2A=256'h30c07c00_b9f40d24_30a00000_b000003f_30e08000_b0000000_b800fe84_10a00000;
-defparam bootram.RAM0.INIT_2B=256'hb9f410f8_80000000_b9f403d8_30a019bc_80000000_b9f40f48_30a08000_b0000000;
-defparam bootram.RAM0.INIT_2C=256'hb9f4fc60_30a00001_b9f4fd4c_80000000_b9f403c0_30a01a7c_b800fe50_10b30000;
-defparam bootram.RAM0.INIT_2D=256'hfa610020_3021ffd4_b800ff40_80000000_b9f410c8_30a00000_b0000018_30a07530;
-defparam bootram.RAM0.INIT_2E=256'hfac10024_30e00001_30c1001c_12e70000_f0c1001c_fae10028_10b30000_a66500ff;
-defparam bootram.RAM0.INIT_2F=256'h10b30000_10f60000_10d70000_10830000_be030030_12c80000_b9f40898_f9e10000;
-defparam bootram.RAM0.INIT_30=256'h10640000_a8830001_6463001f_3063ffff_80000000_b9f407d0_30800001_be76001c;
-defparam bootram.RAM0.INIT_31=256'hfac10024_3021ffcc_3021002c_b60f0008_eae10028_eac10024_ea610020_e9e10000;
-defparam bootram.RAM0.INIT_32=256'hf9e10000_12c80000_12e70000_13250000_13060000_fb210030_fb01002c_fae10028;
-defparam bootram.RAM0.INIT_33=256'h32d6ffff_e0770000_f301001c_30e00002_be76005c_30c1001c_10b90000_fa610020;
-defparam bootram.RAM0.INIT_34=256'hbe33ffcc_32f70001_b9f4089c_30a0000a_12630000_33180001_b9f407f8_f061001d;
-defparam bootram.RAM0.INIT_35=256'heb210030_eb01002c_eae10028_eac10024_ea610020_e9e10000_10730000_10b90000;
-defparam bootram.RAM0.INIT_36=256'h80000000_b9f4f998_f9e10000_3021ffe4_30600001_b810ffe0_30210034_b60f0008;
-defparam bootram.RAM0.INIT_37=256'h12660000_fb21002c_fb010028_fae10024_fa61001c_3021ffd0_80000000_b60f0008;
-defparam bootram.RAM0.INIT_38=256'haa43ffff_12c00000_b810001c_f9e10000_fac10020_13260000_12e70000_13050000;
-defparam bootram.RAM0.INIT_39=256'h10960000_90630060_10b80000_b9f405ec_32730001_bcb2002c_16572001_bc120030;
-defparam bootram.RAM0.INIT_3A=256'he9e10000_10640000_f0130000_14999800_32d60001_be32ffd4_aa43000a_f0730000;
-defparam bootram.RAM0.INIT_3B=256'h3021ffd0_30210030_b60f0008_eb21002c_eb010028_eae10024_eac10020_ea61001c;
-defparam bootram.RAM0.INIT_3C=256'h13260000_12e70000_13050000_12660000_fb21002c_fb010028_fae10024_fa61001c;
-defparam bootram.RAM0.INIT_3D=256'hb9f4051c_32730001_bcb2002c_16572001_12c00000_b8100014_f9e10000_fac10020;
-defparam bootram.RAM0.INIT_3E=256'h14999800_32d60001_be32ffdc_aa43000a_f0730000_10960000_90630060_10b80000;
-defparam bootram.RAM0.INIT_3F=256'heb21002c_eb010028_eae10024_eac10020_ea61001c_e9e10000_10640000_f0130000;
-defparam bootram.RAM1.INIT_00=256'h12e60000_12c50000_fae10024_fac10020_fa61001c_3021ffd8_30210030_b60f0008;
-defparam bootram.RAM1.INIT_01=256'hbe32ffec_aa43000a_f0730000_90630060_10b60000_b9f404b0_12660000_f9e10000;
-defparam bootram.RAM1.INIT_02=256'heae10024_eac10020_ea61001c_e9e10000_10770000_f0130000_3273ffff_32730001;
-defparam bootram.RAM1.INIT_03=256'he9e10000_10a00000_b9f4ff94_f9e10000_3021ffe4_10c50000_30210028_b60f0008;
-defparam bootram.RAM1.INIT_04=256'hb60f0008_e9e10000_80000000_b9f40448_f9e10000_3021ffe4_3021001c_b60f0008;
-defparam bootram.RAM1.INIT_05=256'h3021001c_b60f0008_e9e10000_10a00000_b9f4ffdc_f9e10000_3021ffe4_3021001c;
-defparam bootram.RAM1.INIT_06=256'hbe060024_90c30060_12660000_e0660000_f9e10000_fac10020_fa61001c_3021ffdc;
-defparam bootram.RAM1.INIT_07=256'h10b60000_be26fff0_90c30060_e0730000_32730001_b9f40324_10b60000_12c50000;
-defparam bootram.RAM1.INIT_08=256'hfac1001c_3021ffe0_30210024_b60f0008_10600000_eac10020_ea61001c_e9e10000;
-defparam bootram.RAM1.INIT_09=256'heac1001c_e9e10000_30c0000a_b9f402dc_10b60000_12c50000_b9f4ff9c_f9e10000;
-defparam bootram.RAM1.INIT_0A=256'h10a00000_b9f4ffc0_f9e10000_3021ffe4_10c50000_30210020_b60f0008_10600000;
-defparam bootram.RAM1.INIT_0B=256'h10a00000_b9f4ff48_f9e10000_3021ffe4_10c50000_3021001c_b60f0008_e9e10000;
-defparam bootram.RAM1.INIT_0C=256'he9e10000_30c0000a_b9f40278_f9e10000_3021ffe4_3021001c_b60f0008_e9e10000;
-defparam bootram.RAM1.INIT_0D=256'hb9f40250_f9e10000_10a00000_12c50000_fac1001c_3021ffe0_3021001c_b60f0008;
-defparam bootram.RAM1.INIT_0E=256'hfac1001c_3021ffe0_30210020_b60f0008_eac1001c_e9e10000_10760000_10d60000;
-defparam bootram.RAM1.INIT_0F=256'h30210020_b60f0008_eac1001c_e9e10000_10760000_12c60000_b9f40228_f9e10000;
-defparam bootram.RAM1.INIT_10=256'h94e08001_3021001c_b60f0008_e9e10000_80000000_b9f401b8_f9e10000_3021ffe4;
-defparam bootram.RAM1.INIT_11=256'h80633000_84632000_84c62800_a866ffff_e880f81c_b0000000_9404c001_ac870002;
-defparam bootram.RAM1.INIT_12=256'h9404c001_80843800_ac840002_94808001_a4e70002_f860f81c_b0000000_f860200c;
-defparam bootram.RAM1.INIT_13=256'h88a52000_e880f81c_b0000000_9406c001_acc30002_94608001_80000000_b60f0008;
-defparam bootram.RAM1.INIT_14=256'h9404c001_80841800_ac840002_94808001_a4630002_f8a0f81c_b0000000_f8a0200c;
-defparam bootram.RAM1.INIT_15=256'ha866ffff_e880f820_b0000000_9404c001_ac870002_94e08001_80000000_b60f0008;
-defparam bootram.RAM1.INIT_16=256'h94808001_a4e70002_f860f820_b0000000_f8602020_80633000_84632000_84c62800;
-defparam bootram.RAM1.INIT_17=256'hfae10024_fa61001c_3021ffd4_80000000_b60f0008_9404c001_80843800_ac840002;
-defparam bootram.RAM1.INIT_18=256'hbe060040_90c30060_13050000_12e60000_e0660000_fac10020_f9e10000_fb010028;
-defparam bootram.RAM1.INIT_19=256'h10730000_be120028_16569800_32c70001_b8100014_32600001_be670038_12660000;
-defparam bootram.RAM1.INIT_1A=256'h10730000_3273ffff_32730001_be26ffe4_90c30060_c0779800_10b80000_b9f400cc;
-defparam bootram.RAM1.INIT_1B=256'h3021ffe4_3021002c_b60f0008_eb010028_eae10024_eac10020_ea61001c_e9e10000;
-defparam bootram.RAM1.INIT_1C=256'hf0c51e7c_3021001c_b60f0008_e9e10000_30c0000a_b9f40084_f9e10000_10a00000;
-defparam bootram.RAM1.INIT_1D=256'h80000000_b60f0008_f8653700_64a50405_e4661bac_10c63000_80000000_b60f0008;
-defparam bootram.RAM1.INIT_1E=256'h90c60060_b9f4ffc4_10b30000_e0d31e7c_12600000_f9e10000_fa61001c_3021ffe0;
-defparam bootram.RAM1.INIT_1F=256'he9e10000_bc32ffd8_aa530003_90c60060_b9f4ffbc_32730001_10b30000_e0d31ba8;
-defparam bootram.RAM1.INIT_20=256'h12c60000_f9e10000_fac10020_fa61001c_3021ffdc_30210020_b60f0008_ea61001c;
-defparam bootram.RAM1.INIT_21=256'hfac5000c_bc03fffc_e8650004_30a33700_64730405_12650000_be120030_aa46000a;
-defparam bootram.RAM1.INIT_22=256'hbc32ffd0_aa430001_e0651e7c_30210024_b60f0008_eac10020_ea61001c_e9e10000;
-defparam bootram.RAM1.INIT_23=256'hf9e10000_fac10020_fa61001c_3021ffdc_64730405_b810ffc8_30c0000d_b9f4ffac;
-defparam bootram.RAM1.INIT_24=256'hbc040008_e8830004_30633700_64730405_12650000_be120030_aa46000a_12c60000;
-defparam bootram.RAM1.INIT_25=256'haa430001_e0651e7c_30210024_b60f0008_eac10020_ea61001c_e9e10000_fac3000c;
-defparam bootram.RAM1.INIT_26=256'h30a53700_64a50405_64730405_b810ffc4_80000000_b9f4ff44_30c0000d_be32ffd0;
-defparam bootram.RAM1.INIT_27=256'he8650008_30a53700_64a50405_80000000_b60f0008_e8650010_bc03fffc_e8650008;
-defparam bootram.RAM1.INIT_28=256'h64a50405_80000000_b60f0008_90630060_be24fff8_e8850008_e8650010_bc030014;
-defparam bootram.RAM1.INIT_29=256'h32600001_be230040_e8760008_32c53700_fa61001c_f9e10000_fac10020_3021ffdc;
-defparam bootram.RAM1.INIT_2A=256'hbe03ffe8_e8760008_30a00001_b9f401e0_3060ffff_be120034_aa53012d_b8000010;
-defparam bootram.RAM1.INIT_2B=256'he9e10000_e8760010_3060ffff_be52000c_16539001_3240012b_3273ffff_32730001;
-defparam bootram.RAM1.INIT_2C=256'h32400004_a463000f_e8603324_f8003108_30210024_b60f0008_eac10020_ea61001c;
-defparam bootram.RAM1.INIT_2D=256'ha46300ff_64a30008_e4641bb8_10831800_30600004_10831800_beb20010_16439001;
-defparam bootram.RAM1.INIT_2E=256'ha4a500ff_be070088_80000000_b60f0008_f8603108_30600080_f8a03104_f8603100;
-defparam bootram.RAM1.INIT_2F=256'hf8803110_30800090_f860310c_a0630001_10652800_be23fff8_a4630040_e8603110;
-defparam bootram.RAM1.INIT_30=256'haa470001_10800000_be230058_a4630080_e8603110_bc23fff8_a4630002_e8603110;
-defparam bootram.RAM1.INIT_31=256'h30e7ffff_e860310c_bc23fff8_a4630002_e8603110_f8603110_30600020_be120038;
-defparam bootram.RAM1.INIT_32=256'h30600068_b810ffd0_30600020_be32ffd8_aa470001_30c60001_be07001c_f0660000;
-defparam bootram.RAM1.INIT_33=256'ha4a500ff_10640000_b60f0008_f8603110_30600040_10640000_b60f0008_30800001;
-defparam bootram.RAM1.INIT_34=256'h306000d0_30600090_be27000c_f860310c_10652800_be23fff8_a4630040_e8603110;
-defparam bootram.RAM1.INIT_35=256'h10800000_be23005c_a4630080_e8603110_bc23fff8_a4630002_e8603110_f8603110;
-defparam bootram.RAM1.INIT_36=256'hf8803110_bc120030_aa470001_f860310c_30800010_e0660000_30800001_be070068;
-defparam bootram.RAM1.INIT_37=256'hbe070028_30e7ffff_be23001c_a4630080_e8603110_bc23fff8_a4630002_e8603110;
-defparam bootram.RAM1.INIT_38=256'hb60f0008_f8603110_30600040_10800000_30800050_b810ffd4_b800ffc4_30c60001;
-defparam bootram.RAM1.INIT_39=256'hbc260054_a4c30000_b0008000_e8603324_10640000_b60f0008_30800001_10640000;
-defparam bootram.RAM1.INIT_3A=256'h80000000_10800000_bc660030_e8c01e80_10660000_be650048_bc430054_e8601e80;
-defparam bootram.RAM1.INIT_3B=256'h16443000_30840001_80000000_80000000_80000000_80000000_80000000_80000000;
-defparam bootram.RAM1.INIT_3C=256'ha4630007_e8603324_80000000_b60f0008_bc32ffc8_16432800_30630001_bc32ffdc;
-defparam bootram.RAM1.INIT_3D=256'h16459001_3240005a_3065ffa9_90a50060_b800ff9c_f8801e80_e4831bc4_10631800;
-defparam bootram.RAM1.INIT_3E=256'h3085ffd0_be52000c_16459001_32400039_a46300ff_3065ffc9_a46300ff_be520024;
-defparam bootram.RAM1.INIT_3F=256'hf9e10000_fb610034_13250000_fb21002c_3021ffc8_80000000_b60f0008_a46400ff;
-defparam bootram.RAM2.INIT_00=256'haa43003a_13660000_e0790000_fb410030_fb010028_fae10024_fac10020_fa61001c;
-defparam bootram.RAM2.INIT_01=256'heb010028_eae10024_eac10020_ea61001c_e9e10000_10650000_30a0ffff_be120034;
-defparam bootram.RAM2.INIT_02=256'hc085c800_30a00001_e8c01e84_30210038_b60f0008_eb610034_eb410030_eb21002c;
-defparam bootram.RAM2.INIT_03=256'hb810ffac_bc23ffe4_a4630044_c0662000_a4a300ff_be04001c_90840060_30650001;
-defparam bootram.RAM2.INIT_04=256'h12761800_66c30404_b9f4ff1c_e0b90002_80000000_b9f4ff28_e0b90001_30a0fffe;
-defparam bootram.RAM2.INIT_05=256'he0b90005_30a0fffd_be38ff74_93040060_e083000b_10791800_fa7b0004_10739800;
-defparam bootram.RAM2.INIT_06=256'h66c3040c_b9f4fed8_e0b90004_66e30404_b9f4fee4_e0b90003_13530000_b9f4fef0;
-defparam bootram.RAM2.INIT_07=256'he0b90007_fafb0008_12f7b000_12d61800_12d61800_b9f4fec8_64630408_e0b90006;
-defparam bootram.RAM2.INIT_08=256'hbe130060_f07b0000_1063b000_66c30404_b9f4fea4_e0b90008_80000000_b9f4feb0;
-defparam bootram.RAM2.INIT_09=256'hb9f4fe74_c0b6c800_a6d600ff_32d60009_12d8c000_ea7b000c_13580000_10f30000;
-defparam bootram.RAM2.INIT_0A=256'he8fb0004_ea7b000c_d0789800_1063b800_66e30404_b9f4fe68_e0b60001_12d9b000;
-defparam bootram.RAM2.INIT_0B=256'headb0008_a74300ff_be52ffb8_1647c003_107a1800_a70400ff_c073c000_30980001;
-defparam bootram.RAM2.INIT_0C=256'h107a1800_12c7b000_10632000_e0b70009_12f9b800_64760008_12e73800_e09b0000;
-defparam bootram.RAM2.INIT_0D=256'ha6d600ff_1063c000_16d60000_67030404_b9f4fe04_e0b7000a_12d61800_b9f4fe10;
-defparam bootram.RAM2.INIT_0E=256'ha4630100_e8603b10_10a00000_b810fe58_30a0fffb_be32fe60_1643b000_a46300ff;
-defparam bootram.RAM2.INIT_0F=256'ha4a500ff_80884800_a1292000_a508007f_a5290600_80000000_b60f0008_bc23fff8;
-defparam bootram.RAM2.INIT_10=256'ha0840100_f8603b18_a46600ff_f8803b10_f8e03b00_bc23fff8_a4630100_e8603b10;
-defparam bootram.RAM2.INIT_11=256'hb60f0008_e8603b00_bc23fff8_a4630100_e8603b10_10650000_be050018_f8803b10;
-defparam bootram.RAM2.INIT_12=256'h31200400_31000008_10a00000_f9e10000_3021ffe4_10e60000_10c00000_80000000;
-defparam bootram.RAM2.INIT_13=256'h3021ffc4_3021001c_b60f0008_e9e10000_80000000_b9f4ff84_f8603b14_30600001;
-defparam bootram.RAM2.INIT_14=256'hb9f4ff3c_fae10034_13060000_f9e10000_fb010038_fa61002c_12c50000_fac10030;
-defparam bootram.RAM2.INIT_15=256'hfac03b00_f8603b04_3060000b_66d60408_f8603b10_f8003b18_30600400_12670000;
-defparam bootram.RAM2.INIT_16=256'h80000000_b9f4ff00_f8603b10_30600528_f8803b10_30800428_f8603b18_30600001;
-defparam bootram.RAM2.INIT_17=256'hf8803b10_30800500_f8603b10_30600400_3261001c_12e00000_12d30000_be18009c;
-defparam bootram.RAM2.INIT_18=256'he8803b04_f8610020_e8603b08_f881001c_14b7c000_e8803b0c_80000000_b9f4fed8;
-defparam bootram.RAM2.INIT_19=256'h30a00010_10800000_beb20034_16459003_22400010_f8610028_e8603b00_f8810024;
-defparam bootram.RAM2.INIT_1A=256'hbeb20020_1658b803_12f72800_bc32fff0_16442800_30840001_d0762000_c0732000;
-defparam bootram.RAM2.INIT_1B=256'hf8003b18_12d62800_be52ff7c_1658b803_12f72800_bc25ffd8_b800ff8c_12d62800;
-defparam bootram.RAM2.INIT_1C=256'hb0009f00_3021003c_b60f0008_eb010038_eae10034_eac10030_ea61002c_e9e10000;
-defparam bootram.RAM2.INIT_1D=256'h31200400_b9f4fe34_f9e10000_31000020_30c00001_30a00001_3021ffe4_30e00000;
-defparam bootram.RAM2.INIT_1E=256'h3021ffe4_e860f828_b0000000_3021001c_b60f0008_a463ffff_b00000ff_e9e10000;
-defparam bootram.RAM2.INIT_1F=256'h64830008_80000000_b9f4ffa8_3021001c_b60f0008_e9e10000_bc030010_f9e10000;
-defparam bootram.RAM2.INIT_20=256'h16439001_32400015_80000000_b9f40330_a46300ff_be120010_aa440020_a48400ff;
-defparam bootram.RAM2.INIT_21=256'hb0000000_b800ffb0_f860f828_b0000000_bc52ffe4_16439001_32400018_bcb2fff0;
-defparam bootram.RAM2.INIT_22=256'hb9f4ff40_3021001c_b60f0008_e9e10000_bc030010_f9e10000_3021ffe4_e860f824;
-defparam bootram.RAM2.INIT_23=256'h80000000_b9f402c8_a4a300ff_be120010_aa440020_a48400ff_64830008_80000000;
-defparam bootram.RAM2.INIT_24=256'hb0000000_e0651bbe_bc52ffe4_16459001_32400018_bcb2fff0_16459001_32400015;
-defparam bootram.RAM2.INIT_25=256'h10c50000_12c00000_fac1001c_3021ffe0_b800ffa4_f860f824_b0000000_f8a0f828;
-defparam bootram.RAM2.INIT_26=256'heac1001c_e9e10000_80000000_99fcb000_30e00024_b9f40334_f9e10000_10b60000;
-defparam bootram.RAM2.INIT_27=256'hb810001c_30e1001c_b9f4fd88_f9e10000_30c00040_3021ffa4_30210020_b60f0008;
-defparam bootram.RAM2.INIT_28=256'he063001c_10612800_10600000_be520044_16459001_3240003e_30a50001_10a00000;
-defparam bootram.RAM2.INIT_29=256'haa440099_e083001c_10612800_30a50001_bc32ffd8_aa4300aa_bc12ffe0_aa4300ff;
-defparam bootram.RAM2.INIT_2A=256'h3021005c_b60f0008_e9e10000_3021005c_b60f0008_e9e10000_30600001_be32ffc8;
-defparam bootram.RAM2.INIT_2B=256'h10b60000_30c00006_b9f4fd08_f9e10000_10f60000_32c1001c_fac10028_3021ffd4;
-defparam bootram.RAM2.INIT_2C=256'heac10028_e9e10000_a884ffff_80841800_14830000_30e00006_b9f401f8_30c01bd8;
-defparam bootram.RAM2.INIT_2D=256'h65040403_64e40003_64a40007_64c40005_e0803a03_3021002c_b60f0008_6464001f;
-defparam bootram.RAM2.INIT_2E=256'ha4a50008_80e73000_90a40041_a4e70004_80c62800_a4c60002_64640407_65240405;
-defparam bootram.RAM2.INIT_2F=256'h81294000_a5290040_81082000_a5080020_80842800_a4840010_80a53800_10842000;
-defparam bootram.RAM2.INIT_30=256'h64e50403_64c50003_64650007_64850005_a4a500ff_a46300ff_b60f0008_80634800;
-defparam bootram.RAM2.INIT_31=256'ha4630008_80c62000_90650041_a4c60004_80841800_a4840002_65250407_65050405;
-defparam bootram.RAM2.INIT_32=256'h81083800_a5080040_80e72800_a4e70020_80a51800_a4a50010_80633000_10a52800;
-defparam bootram.RAM2.INIT_33=256'hb00000ff_fac1001c_3021ffe0_80000000_b60f0008_f9203a00_a52900ff_81294000;
-defparam bootram.RAM2.INIT_34=256'h30a0ffaa_b9f4ff74_30a0ffff_b9f4ff7c_30a0ffff_b9f4ff84_f9e10000_a6c5ffff;
-defparam bootram.RAM2.INIT_35=256'h30a00061_b9f4ff54_30a00032_b9f4ff5c_a2d60000_b0000b00_30a0ff99_b9f4ff6c;
-defparam bootram.RAM2.INIT_36=256'h30a0ff81_b9f4ff34_30a00032_b9f4ff3c_10b60000_b9f4ff44_64b60008_b9f4ff4c;
-defparam bootram.RAM2.INIT_37=256'h30a0ffa1_b9f4ff14_30a00030_b9f4ff1c_64b60010_b9f4ff24_30a0000b_b9f4ff2c;
-defparam bootram.RAM2.INIT_38=256'h10a00000_b9f4fef4_30a00020_b9f4fefc_30a0000e_b9f4ff04_10a00000_b9f4ff0c;
-defparam bootram.RAM2.INIT_39=256'h30210020_b60f0008_eac1001c_e9e10000_10a00000_b9f4fee4_30a00020_b9f4feec;
-defparam bootram.RAM2.INIT_3A=256'hb6110000_30a0ffff_b9f4e91c_80000000_b9f4f220_f9e10000_3021ffe4_30a01be0;
-defparam bootram.RAM2.INIT_3B=256'h22400003_80000000_b60f0008_80000000_b60f0008_80000000_b6910000_80000000;
-defparam bootram.RAM2.INIT_3C=256'h16432000_e8660000_e8850000_bc230050_a4630003_80653000_beb2005c_16479003;
-defparam bootram.RAM2.INIT_3D=256'h30e7ffff_30c60004_be52ffe0_16479003_22400003_30a50004_30e7fffc_bc320040;
-defparam bootram.RAM2.INIT_3E=256'h30c60001_30a50001_be320020_16434000_e0660000_e1050000_bc120028_aa47ffff;
-defparam bootram.RAM2.INIT_3F=256'h2240000f_14634000_b60f0008_10600000_b60f0008_bc32ffe0_aa47ffff_30e7ffff;
-defparam bootram.RAM3.INIT_00=256'hbc070024_11050000_be030034_a4630003_80662800_10850000_beb20018_16479003;
-defparam bootram.RAM3.INIT_01=256'h30c60001_be32fff0_16474000_31080001_f0680000_e0660000_10e72000_11040000;
-defparam bootram.RAM3.INIT_02=256'he8860008_f8680004_e8660004_f8880000_30e7fff0_e8860000_10650000_b60f0008;
-defparam bootram.RAM3.INIT_03=256'h31080010_be52ffd0_16479003_2240000f_f868000c_30c60010_e866000c_f8880008;
-defparam bootram.RAM3.INIT_04=256'h22400003_d8682000_30e7fffc_c8662000_10800000_bcb2002c_16479003_22400003;
-defparam bootram.RAM3.INIT_05=256'he860193c_10880000_b810ff68_11044000_10c43000_30840004_be52ffec_16479003;
-defparam bootram.RAM3.INIT_06=256'h3273fffc_99fc1800_bc120018_aa43ffff_3260193c_f9e10000_fa61001c_3021ffe0;
-defparam bootram.RAM3.INIT_07=256'h3021fff8_30210020_b60f0008_ea61001c_e9e10000_bc32fff0_aa43ffff_e8730000;
-defparam bootram.RAM3.INIT_08=256'h30210008_b60f0008_c9e00800_80000000_b9f4ffb0_80000000_b9f4e7d4_d9e00800;
-defparam bootram.RAM3.INIT_09=256'hffffffff_30210008_b60f0008_c9e00800_80000000_b9f4e74c_d9e00800_3021fff8;
-defparam bootram.RAM3.INIT_0A=256'h696d6167_61696e20_523a206d_4552524f_4f4b0000_00000000_ffffffff_00000000;
-defparam bootram.RAM3.INIT_0B=256'h64206d6f_206c6f61_49484558_20696e20_4261636b_65642120_7475726e_65207265;
-defparam bootram.RAM3.INIT_0C=256'h53746172_720a0000_6f616465_6f6f746c_322b2062_55535250_4e4f4b00_64652e00;
-defparam bootram.RAM3.INIT_0D=256'h4552524f_2e000000_6d6f6465_61666520_696e2073_50322b20_20555352_74696e67;
-defparam bootram.RAM3.INIT_0E=256'h20546869_72616d21_70726f67_61696e20_6f6d206d_6e206672_65747572_523a2072;
-defparam bootram.RAM3.INIT_0F=256'h523a206e_4552524f_6e210000_61707065_65722068_206e6576_6f756c64_73207368;
-defparam bootram.RAM3.INIT_10=256'h626c652e_61696c61_65206176_696d6167_61726520_69726d77_66652066_6f207361;
-defparam bootram.RAM3.INIT_11=256'h6c6f6164_20746f20_66726565_65656c20_6b2e2046_62726963_6d206120_20492061;
-defparam bootram.RAM3.INIT_12=256'h2076616c_20666f72_6b696e67_43686563_2e000000_2052414d_5820746f_20494845;
-defparam bootram.RAM3.INIT_13=256'h56616c69_2e2e2e00_6d616765_47412069_6e204650_6374696f_726f6475_69642070;
-defparam bootram.RAM3.INIT_14=256'h642e2041_666f756e_61676520_4120696d_20465047_74696f6e_6f647563_64207072;
-defparam bootram.RAM3.INIT_15=256'h2070726f_616c6964_4e6f2076_742e0000_20626f6f_6720746f_7074696e_7474656d;
-defparam bootram.RAM3.INIT_16=256'h74656d70_2e0a4174_6f756e64_67652066_20696d61_46504741_696f6e20_64756374;
-defparam bootram.RAM3.INIT_17=256'h77617265_6669726d_696f6e20_64756374_2070726f_6c6f6164_20746f20_74696e67;
-defparam bootram.RAM3.INIT_18=256'h6520666f_6d776172_20666972_74696f6e_6f647563_64207072_56616c69_2e2e2e00;
-defparam bootram.RAM3.INIT_19=256'h6e206672_65747572_523a2052_4552524f_2e2e2e00_64696e67_204c6f61_756e642e;
-defparam bootram.RAM3.INIT_1A=256'h206e6576_6f756c64_73207368_20546869_72616d21_70726f67_61696e20_6f6d206d;
-defparam bootram.RAM3.INIT_1B=256'h696f6e20_64756374_2070726f_616c6964_4e6f2076_6e210000_61707065_65722068;
-defparam bootram.RAM3.INIT_1C=256'h6669726d_61666520_6e672073_54727969_6e642e20_20666f75_77617265_6669726d;
-defparam bootram.RAM3.INIT_1D=256'h0018000f_ffff0031_01b200d9_05160364_14580a2c_05050400_2e2e2e00_77617265;
-defparam bootram.RAM3.INIT_1E=256'hb8080000_b0000000_10101200_06820594_09c407d0_13880d05_00002710_000b0000;
-defparam bootram.RAM3.INIT_1F=256'h20202020_28282820_20202828_20202020_00202020_00000000_6f72740a_0a0a6162;
-defparam bootram.RAM3.INIT_20=256'h10040404_10101010_10101010_10101010_20881010_20202020_20202020_20202020;
-defparam bootram.RAM3.INIT_21=256'h01010101_01010101_01010101_41414141_10104141_10101010_04040410_04040404;
-defparam bootram.RAM3.INIT_22=256'h02020202_02020202_02020202_42424242_10104242_10101010_01010101_01010101;
-defparam bootram.RAM3.INIT_23=256'h00000000_00000000_00000000_00000000_20000000_10101010_02020202_02020202;
+defparam bootram.RAM0.INIT_00=256'h00000000_00000000_00000000_a4a20400_3a0b0b0b_0bae840c_82700b0b_0b0b0b0b;
+defparam bootram.RAM0.INIT_01=256'h00000000_00000000_00000000_800c0400_880c840c_0ba4df2d_88080b0b_80088408;
+defparam bootram.RAM0.INIT_02=256'h00000000_00000000_04000000_ffff0652_832b2a83_81058205_72830609_71fd0608;
+defparam bootram.RAM0.INIT_03=256'h83a70400_0b0b0b0b_7383ffff_2b2b0906_05820583_83060981_83ffff73_71fd0608;
+defparam bootram.RAM0.INIT_04=256'h00000000_00000000_53510400_070a8106_73097306_09060906_72057373_72098105;
+defparam bootram.RAM0.INIT_05=256'h00000000_00000000_00000000_00000000_00000000_51040000_732e0753_72722473;
+defparam bootram.RAM0.INIT_06=256'h00000000_53510400_81065151_0a31050a_0a720a10_30720a10_71068106_71737109;
+defparam bootram.RAM0.INIT_07=256'h00000000_00000000_00000000_00000000_00000000_51040000_732e0753_72722673;
+defparam bootram.RAM0.INIT_08=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM0.INIT_09=256'h00000000_00000000_00000000_00000000_00000000_00000000_c3040000_0b0b0b88;
+defparam bootram.RAM0.INIT_0A=256'h00000000_00000000_00000000_00000000_00000000_00000000_0a535104_720a722b;
+defparam bootram.RAM0.INIT_0B=256'h00000000_00000000_00000000_00000000_05040000_0b0b88a6_0981050b_72729f06;
+defparam bootram.RAM0.INIT_0C=256'h00000000_00000000_04000000_06075351_8106ff05_0974090a_739f062a_72722aff;
+defparam bootram.RAM0.INIT_0D=256'h00000000_0c515104_0772fc06_832b0b2b_81058205_73830609_020d0406_71715351;
+defparam bootram.RAM0.INIT_0E=256'h00000000_00000000_00000000_51040000_0a810653_81050906_72050970_72098105;
+defparam bootram.RAM0.INIT_0F=256'h00000000_00000000_00000000_53510400_0a098106_81050906_72050970_72098105;
+defparam bootram.RAM0.INIT_10=256'h00000000_00000000_00000000_00000000_00000000_00000000_52040000_71098105;
+defparam bootram.RAM0.INIT_11=256'h00000000_00000000_00000000_00000000_00000000_04000000_05055351_72720981;
+defparam bootram.RAM0.INIT_12=256'h00000000_00000000_00000000_00000000_00000000_07535104_73730906_72097206;
+defparam bootram.RAM0.INIT_13=256'h00000000_00000000_04000000_81ff0652_1010102a_81058305_72830609_71fc0608;
+defparam bootram.RAM0.INIT_14=256'h00000000_00000000_88a90400_060b0b0b_10100508_f0738306_0b0b0bad_71fc0608;
+defparam bootram.RAM0.INIT_15=256'h00000000_0c510400_0c840c80_80085688_992d5050_0b0b0b9e_88087575_80088408;
+defparam bootram.RAM0.INIT_16=256'h00000000_0c510400_0c840c80_80085688_cb2d5050_0b0b0b9f_88087575_80088408;
+defparam bootram.RAM0.INIT_17=256'h04000000_07515151_05ff0506_73097274_70547106_8106ff05_0509060a_72097081;
+defparam bootram.RAM0.INIT_18=256'h51040000_06075151_7405ff05_06730972_05705471_098106ff_0509060a_72097081;
+defparam bootram.RAM0.INIT_19=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_05ff0504;
+defparam bootram.RAM0.INIT_1A=256'h00000000_00000000_00000000_00000000_00000000_51040000_0bae800c_810b0b0b;
+defparam bootram.RAM0.INIT_1B=256'h00000000_00000000_00000000_00000000_00000000_00000000_04000000_71810552;
+defparam bootram.RAM0.INIT_1C=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM0.INIT_1D=256'h00000000_00000000_00000000_00000000_00000000_04000000_10100552_02840572;
+defparam bootram.RAM0.INIT_1E=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM0.INIT_1F=256'h00000000_00000000_00000000_00000000_00000000_020d0400_05715351_717105ff;
+defparam bootram.RAM0.INIT_20=256'h10101010_10101010_10101010_10101010_10101010_10101010_ff3f0410_81f33f9d;
+defparam bootram.RAM0.INIT_21=256'h060c5151_2b0772fc_05101010_09810583_06738306_047381ff_10105351_10101010;
+defparam bootram.RAM0.INIT_22=256'h535104ae_ed385151_100a5372_1052720a_72060571_06ff0509_72807281_043c0472;
+defparam bootram.RAM0.INIT_23=256'hc00c8290_a0800bb5_b5bc0c82_0b0b0b0b_38838080_08822eb9_a138ae84_8008802e;
+defparam bootram.RAM0.INIT_24=256'h80808480_b5c00cf8_8082800b_bc0cf880_0b0b0bb5_8080a40b_0c04f880_800bb5c4;
+defparam bootram.RAM0.INIT_25=256'h0ba6b00b_c00c0b0b_80940bb5_0c80c0a8_0b0bb5bc_808c0b0b_0480c0a8_0bb5c40c;
+defparam bootram.RAM0.INIT_26=256'hae8c0c70_92388412_5270802e_08700852_a338ae8c_c8335170_ff3d0db5_b5c40c04;
+defparam bootram.RAM0.INIT_27=256'hb808802e_0b0b0bb5_04803d0d_833d0d04_0bb5c834_70f03881_70085252_2dae8c08;
+defparam bootram.RAM0.INIT_28=256'hf5e23f82_510b0b0b_0b0bb5b8_3d0d040b_06853882_802e0981_0b0b800b_8e380b0b;
+defparam bootram.RAM0.INIT_29=256'h518bb43f_d0055273_3fb23dfe_5254868c_59923d70_3dfee005_d03d0db2_3d0d0404;
+defparam bootram.RAM0.INIT_2A=256'h3d335473_519e3986_b43fa6b4_52735198_38765378_ff74278f_775481ff_8008b238;
+defparam bootram.RAM0.INIT_2B=256'hb039fc3d_858a3fff_39a6ec51_a6b85184_3f91c23f_b4518598_068f38a6_812e0981;
+defparam bootram.RAM0.INIT_2C=256'h3fa6f051_e03f86d6_85e13f8e_81a08c0c_fc3f800b_80e45189_81a08c0c_0d81ff0b;
+defparam bootram.RAM0.INIT_2D=256'h51547380_70810651_08708d2a_3f81c6b4_805182ed_81ff0655_ee3f8008_84e23f83;
+defparam bootram.RAM0.INIT_2E=256'h80805380_82c33f82_a6388151_8008802e_5190b53f_81fc8080_5184bd3f_c338a79c;
+defparam bootram.RAM0.INIT_2F=256'hf8518484_3f8a39a7_73519191_5184913f_c43fa7bc_8eaa3f90_fc808051_ffff5281;
+defparam bootram.RAM0.INIT_30=256'h5183e53f_9938a8fc_8008802e_518fa03f_3fb0800a_d05183f8_74b238a8_3ffea13f;
+defparam bootram.RAM0.INIT_31=256'h8fc63f80_98800a51_5183cd3f_d83fa9b4_800a5190_88df3fb0_3f82ac51_815181f9;
+defparam bootram.RAM0.INIT_32=256'h5183a53f_bb3faab0_800a518d_ffff5298_80805380_83ba3f82_38aa8451_08802eaa;
+defparam bootram.RAM0.INIT_33=256'h80085480_518f893f_81fc8080_5183913f_ba39ab90_3faad451_a43f8fc9_82ac5188;
+defparam bootram.RAM0.INIT_34=256'hac5187e9_82ea3f82_3faab051_80518d80_5281fc80_5380ffff_38828080_08802eb5;
+defparam bootram.RAM0.INIT_35=256'h82c63ffc_39a7f851_3f81548a_80518fd5_5187da3f_db3f82ac_a7bc5182_3f8f8e3f;
+defparam bootram.RAM0.INIT_36=256'hb7387581_54807425_74ff1656_5a575758_7a7c7f7f_04f83d0d_0c863d0d_e33f7380;
+defparam bootram.RAM0.INIT_37=256'hff065185_05527781_538a3dfc_a1053482_33028405_70810558_8a3d3476_17575473;
+defparam bootram.RAM0.INIT_38=256'h04fa3d0d_0c8a3d0d_81547380_8538c139_3f73802e_8a5186fd_81ff0654_cf3f8008;
+defparam bootram.RAM0.INIT_39=256'hd051ff89_81f75280_3dfc0553_34815488_5675883d_748338dc_5580de56_02a30533;
+defparam bootram.RAM0.INIT_3A=256'h70525684_02a70533_3dfc0552_34815389_0533893d_7c5702ab_04f93d0d_3f883d0d;
+defparam bootram.RAM0.INIT_3B=256'h3f800881_755183b2_76537b52_77259738_2e9e3880_56547380_81ff0670_ef3f8008;
+defparam bootram.RAM0.INIT_3C=256'h5381f752_883dfc05_3d0d8154_3d0d04fa_74800c89_83388155_5473802e_ff067056;
+defparam bootram.RAM0.INIT_3D=256'h3d0d04fb_75800c88_83388156_2e098106_567480de_883d3356_a03f800b_80d051ff;
+defparam bootram.RAM0.INIT_3E=256'h5581bb3f_06537652_157481ff_2e903881_54547280_7081ff06_56567433_3d0d7779;
+defparam bootram.RAM0.INIT_3F=256'h800b800c_51819f3f_3f8a5272_705253cb_0d747653_0d04fe3d_800c873d_e539800b;
+defparam bootram.RAM1.INIT_00=256'h81135374_55558439_76787055_04fc3d0d_3f833d0d_528051de_ff3d0d73_843d0d04;
+defparam bootram.RAM1.INIT_01=256'h863d0d04_3473800c_e7388073_2e098106_0652718a_800881ff_80087334_5181b23f;
+defparam bootram.RAM1.INIT_02=256'h0d04ff3d_1234823d_0533ae90_7251028f_04803d0d_3f833d0d_528051c9_ff3d0d73;
+defparam bootram.RAM1.INIT_03=256'hae901333_3d0d8053_3d0d04fe_0c535183_05702272_7510abcc_81ce8005_0d73a029;
+defparam bootram.RAM1.INIT_04=256'h0d767856_0d04fc3d_e738843d_53827325_d13f8113_33527251_3fae9413_527251c9;
+defparam bootram.RAM1.INIT_05=256'h73a02981_7351df3f_87388d52_2e098106_33537281_38ae9014_09810694_54748a2e;
+defparam bootram.RAM1.INIT_06=256'hce800552_73a02981_04ff3d0d_0c863d0d_38748c15_72802ef8_84140853_ce800554;
+defparam bootram.RAM1.INIT_07=256'hc6a40870_c2880c81_0d800b81_0d04ff3d_800c833d_38901208_70802ef8_88120851;
+defparam bootram.RAM1.INIT_08=256'h2a81c284_800c7088_ff0681c2_70227081_10ae9805_38845170_84712583_8f065151;
+defparam bootram.RAM1.INIT_09=256'h81517180_33555354_88059705_0d767802_0d04fd3d_880c833d_800b81c2_0c515181;
+defparam bootram.RAM1.INIT_0A=256'h81900b81_81c28c0c_72108107_5170f138_81065151_70862a70_81c29008_2e818638;
+defparam bootram.RAM1.INIT_0B=256'h06708132_872a7081_c2900870_70f13881_06515151_812a7081_c2900870_c2900c81;
+defparam bootram.RAM1.INIT_0C=256'h0c81c290_7081c290_8338a051_5171812e_b13880e8_3871802e_70802eba_51515151;
+defparam bootram.RAM1.INIT_0D=256'hcc398151_34ff1252_70810556_08517074_3881c28c_515170f1_70810651_0870812a;
+defparam bootram.RAM1.INIT_0E=256'h535481c2_97053355_78028805_fd3d0d76_853d0d04_0c70800c_0b81c290_883980c0;
+defparam bootram.RAM1.INIT_0F=256'h81905170_802e8438_81d05171_81c28c0c_f1387210_51515170_2a708106_90087086;
+defparam bootram.RAM1.INIT_10=256'h81067081_70872a70_81c29008_5170f138_81065151_70812a70_81c29008_81c2900c;
+defparam bootram.RAM1.INIT_11=256'h2e833890_d0517181_c28c0c80_38733381_802e80c5_80cf3871_5170802e_32515151;
+defparam bootram.RAM1.INIT_12=256'h2a708106_90087087_f13881c2_51515170_2a708106_90087081_900c81c2_517081c2;
+defparam bootram.RAM1.INIT_13=256'h81c2900c_3980c00b_3981518a_5354ffb7_8114ff13_802e8e38_51515170_70813251;
+defparam bootram.RAM1.INIT_14=256'h52717425_70a23870_06515254_0870810a_7581c6a4_04fd3d0d_0c853d0d_80517080;
+defparam bootram.RAM1.INIT_15=256'h853d0d04_1252e239_27f13881_868d9f71_74315151_c6ac0870_ac085381_9b3881c6;
+defparam bootram.RAM1.INIT_16=256'h06515171_127081ff_269638c9_527180da_ff065152_a9117081_8f0533ff_ff3d0d02;
+defparam bootram.RAM1.INIT_17=256'h335358ff_58568076_3d0d797b_3d0d04f9_70800c83_ff065151_d0127081_b9268938;
+defparam bootram.RAM1.INIT_18=256'h06721970_147081ff_aa387281_5371782e_81173353_ef38810b_09810682_5371ba2e;
+defparam bootram.RAM1.INIT_19=256'h71d83881_70335152_bd387216_71802e82_53515452_06515151_337080c4_33abdd11;
+defparam bootram.RAM1.INIT_1A=256'h7084190c_ff067205_3f800881_5252feec_06821733_842b9ff0_fb3f8008_163351fe;
+defparam bootram.RAM1.INIT_1B=256'h80068417_8c2bbfe0_cb3f8008_163351fe_828a3883_54fd5374_11335753_7010178b;
+defparam bootram.RAM1.INIT_1C=256'h9ff00673_8008842b_53fea93f_85173352_80067305_882b83fe_bb3f8008_335253fe;
+defparam bootram.RAM1.INIT_1D=256'h842b9ff0_873f8008_163351fe_88180c87_ff067305_3f800881_5253fe98_05861733;
+defparam bootram.RAM1.INIT_1E=256'hff068c19_89057081_d2387410_74742780_52717734_3f800812_5252fdf8_06881733;
+defparam bootram.RAM1.INIT_1F=256'h53fdc13f_06723352_842b9ff0_cf3f8008_565152fd_52335552_70708105_08177119;
+defparam bootram.RAM1.INIT_20=256'h51515284_065a525b_197081ff_81ff0681_33701a70_17081570_7274348c_80081353;
+defparam bootram.RAM1.INIT_21=256'h81ff0673_19703070_05547305_0571882a_08783372_17088818_ffb03884_17087526;
+defparam bootram.RAM1.INIT_22=256'h3f800812_5252fce4_068a1533_842b9ff0_f33f8008_515354fc_3356545b_101a8911;
+defparam bootram.RAM1.INIT_23=256'h3d0d0480_72800c89_83398053_8539fe53_81068938_77722e09_5152fb53_7081ff06;
+defparam bootram.RAM1.INIT_24=256'h337880ff_0d029305_0d04fe3d_f138823d_51515170_2a708106_90087088_3d0d81d6;
+defparam bootram.RAM1.INIT_25=256'h7681d680_5170f138_81065151_70882a70_81d69008_80075353_060780c0_067a8c80;
+defparam bootram.RAM1.INIT_26=256'h3881d690_72802e96_900c7251_800781d6_980c7182_ff0681d6_900c7581_0c7181d6;
+defparam bootram.RAM1.INIT_27=256'h810b81d6_04fc3d0d_0c843d0d_08517080_3881d680_515170f1_70810651_0870882a;
+defparam bootram.RAM1.INIT_28=256'h800b81d6_56fee43f_f63d0d7d_863d0d04_51ff873f_53805280_55885480_940c8880;
+defparam bootram.RAM1.INIT_29=256'h88a80b81_81d6980c_800c810b_882b81d6_d6840c7c_0c8b0b81_0b81d690_980c8880;
+defparam bootram.RAM1.INIT_2A=256'h900c8a80_800b81d6_80d33888_54737627_3f7e5580_900cfeb3_a80b81d6_d6900c8a;
+defparam bootram.RAM1.INIT_2B=256'h883d7675_d680085b_84085a81_085981d6_5881d688_81d68c08_0cfe983f_0b81d690;
+defparam bootram.RAM1.INIT_2C=256'h57348112_75708105_17517033_27913871_80527173_83387053_53707327_31525790;
+defparam bootram.RAM1.INIT_2D=256'hc0526851_70545780_3d0d883d_3d0d04ea_d6980c8c_39800b81_1454ffa9_52ec3972;
+defparam bootram.RAM1.INIT_2E=256'h81069438_81aa2e09_2e9d3873_547381ff_17703351_05575574_0284059d_fed23f80;
+defparam bootram.RAM1.INIT_2F=256'h5473800c_27d13880_1555be75_548b3981_06853881_992e0981_51547381_74167033;
+defparam bootram.RAM1.INIT_30=256'h85f73f80_d8527351_558453ab_fe823f80_84527951_3d705454_f93d0d86_983d0d04;
+defparam bootram.RAM1.INIT_31=256'h97053370_fd3d0d02_a0940c04_04810b81_0c893d0d_81557480_81068338_08752e09;
+defparam bootram.RAM1.INIT_32=256'h2ba00671_90067483_07077310_88067173_0672812a_71832a84_71872a07_852a8206;
+defparam bootram.RAM1.INIT_33=256'h51525351_81d4800c_7081ff06_78872b07_06707207_852b80c0_81ff0676_73070770;
+defparam bootram.RAM1.INIT_34=256'hff51ff98_ff9e3f81_5381ff51_81d00a07_74d00a06_04fe3d0d_52853d0d_55525555;
+defparam bootram.RAM1.INIT_35=256'h81ff0652_72882a70_51ff813f_873f80e1_3fb251ff_9951ff8c_ff923f81_3f81aa51;
+defparam bootram.RAM1.INIT_36=256'hdb3f7290_982a51fe_fee23f72_3f818151_b251fee8_51feed3f_7281ff06_52fef53f;
+defparam bootram.RAM1.INIT_37=256'hfeba3fa0_bf3f8e51_3f8051fe_a151fec4_feca3f81_cf3fb051_065253fe_2a7081ff;
+defparam bootram.RAM1.INIT_38=256'h8c0cf93d_398c0802_3d0d04ff_fea63f84_ab3f8051_3fa051fe_8051feb0_51feb53f;
+defparam bootram.RAM1.INIT_39=256'h800b8c08_0888050c_0508308c_388c0888_088025ab_8c088805_08fc050c_0d800b8c;
+defparam bootram.RAM1.INIT_3A=256'h088c0508_fc050c8c_05088c08_0c8c08f4_8c08f405_8838810b_08fc0508_f4050c8c;
+defparam bootram.RAM1.INIT_3B=256'h38810b8c_fc050888_050c8c08_0b8c08f0_8c050c80_08308c08_8c088c05_8025ab38;
+defparam bootram.RAM1.INIT_3C=256'h81a73f80_88050851_08528c08_8c088c05_050c8053_088c08fc_8c08f005_08f0050c;
+defparam bootram.RAM1.INIT_3D=256'h8c08f805_08f8050c_0508308c_388c08f8_08802e8c_8c08fc05_f8050c54_08708c08;
+defparam bootram.RAM1.INIT_3E=256'h88050880_050c8c08_0b8c08fc_fb3d0d80_08028c0c_8c0c048c_54893d0d_0870800c;
+defparam bootram.RAM1.INIT_3F=256'h8c388c08_05088025_0c8c088c_8c08fc05_050c810b_308c0888_08880508_2593388c;
+defparam bootram.RAM2.INIT_00=256'h8c08f805_3f800870_050851ad_528c0888_088c0508_0c81538c_8c088c05_8c050830;
+defparam bootram.RAM2.INIT_01=256'h800c5487_f8050870_050c8c08_308c08f8_08f80508_2e8c388c_fc050880_0c548c08;
+defparam bootram.RAM2.INIT_02=256'h088c0508_f8050c8c_800b8c08_08fc050c_0d810b8c_8c0cfd3d_048c0802_3d0d8c0c;
+defparam bootram.RAM2.INIT_03=256'h088c0508_2499388c_088c0508_38800b8c_08802ea3_8c08fc05_0827ac38_8c088805;
+defparam bootram.RAM2.INIT_04=256'h388c088c_802e80c9_08fc0508_0cc9398c_8c08fc05_fc050810_050c8c08_108c088c;
+defparam bootram.RAM2.INIT_05=256'hf805088c_050c8c08_318c0888_088c0508_8805088c_a1388c08_88050826_05088c08;
+defparam bootram.RAM2.INIT_06=256'h2a8c088c_8c050881_050c8c08_2a8c08fc_fc050881_050c8c08_078c08f8_08fc0508;
+defparam bootram.RAM2.INIT_07=256'h8c08f805_0c518d39_8c08f405_88050870_8f388c08_0508802e_398c0890_050cffaf;
+defparam bootram.RAM2.INIT_08=256'h56528372_78777956_04fc3d0d_3d0d8c0c_08800c85_8c08f405_f4050c51_08708c08;
+defparam bootram.RAM2.INIT_09=256'h72712e09_74335253_a0387433_5271ff2e_b038ff12_5170802e_74078306_278c3874;
+defparam bootram.RAM2.INIT_0A=256'h04747454_0c863d0d_38800b80_098106e2_5571ff2e_ff145455_81158115_8106bd38;
+defparam bootram.RAM2.INIT_0B=256'h55ffaf39_38707355_718326e9_14545451_118414fc_068f3884_082e0981_51700873;
+defparam bootram.RAM2.INIT_0C=256'h83065170_38727507_8f72278c_55555555_7670797b_04fc3d0d_0c863d0d_72713180;
+defparam bootram.RAM2.INIT_0D=256'hff2e0981_ff125271_81055634_54337470_72708105_ff2e9838_ff125271_802ea738;
+defparam bootram.RAM2.INIT_0E=256'h54087170_72708405_8405530c_54087170_72708405_0d047451_800c863d_06ea3874;
+defparam bootram.RAM2.INIT_0F=256'hf0125271_8405530c_54087170_72708405_8405530c_54087170_72708405_8405530c;
+defparam bootram.RAM2.INIT_10=256'h387054ff_718326ed_0cfc1252_70840553_05540871_38727084_83722795_8f26c938;
+defparam bootram.RAM2.INIT_11=256'ha4528151_e3c63fae_0ce4a83f_3873b5cc_72812e98_84085454_0d800bae_8339fd3d;
+defparam bootram.RAM2.INIT_12=256'h51843f00_a53f8008_528151e6_af3faea4_e4913fe3_72b5cc0c_08519b3f_e6bc3f80;
+defparam bootram.RAM2.INIT_13=256'hff058171_18841908_d9388188_77802e80_085a545a_0882c811_0d7baea8_ff39f73d;
+defparam bootram.RAM2.INIT_14=256'h77065372_81801908_88055656_822b7811_24b53873_e9388074_80742480_2b595559;
+defparam bootram.RAM2.INIT_15=256'h57547380_812c5a57_17fc1779_2dff14fc_74085372_53537951_78167008_802eb538;
+defparam bootram.RAM2.INIT_16=256'h2dff14fc_74085372_51f8c03f_08a53879_0853bc13_ad38aea8_085877ff_25d63877;
+defparam bootram.RAM2.INIT_17=256'h53722d79_51bc1308_ff943972_d2398057_25ffa938_57547380_812c5a57_17fc1779;
+defparam bootram.RAM2.INIT_18=256'h5270ff2e_12700852_38702dfc_70ff2e91_70085252_ac0bfc05_ff3d0db5_51f8943f;
+defparam bootram.RAM2.INIT_19=256'h523a206d_4552524f_4f4b0000_00000040_3f040000_0404e398_38833d0d_098106f1;
+defparam bootram.RAM2.INIT_1A=256'h49484558_20696e20_4261636b_65642120_7475726e_65207265_696d6167_61696e20;
+defparam bootram.RAM2.INIT_1B=256'h6f616465_6f6f746c_322b2062_55535250_4e4f4b00_64652e00_64206d6f_206c6f61;
+defparam bootram.RAM2.INIT_1C=256'h53746172_6e0a0000_6974696f_55206564_61205a50_756c7472_70657220_72207375;
+defparam bootram.RAM2.INIT_1D=256'h4552524f_2e000000_6d6f6465_61666520_696e2073_50322b20_20555352_74696e67;
+defparam bootram.RAM2.INIT_1E=256'h20546869_72616d21_70726f67_61696e20_6f6d206d_6e206672_65747572_523a2072;
+defparam bootram.RAM2.INIT_1F=256'h523a206e_4552524f_6e210000_61707065_65722068_206e6576_6f756c64_73207368;
+defparam bootram.RAM2.INIT_20=256'h626c652e_61696c61_65206176_696d6167_61726520_69726d77_66652066_6f207361;
+defparam bootram.RAM2.INIT_21=256'h6c6f6164_20746f20_66726565_65656c20_6b2e2046_62726963_6d206120_20492061;
+defparam bootram.RAM2.INIT_22=256'h2076616c_20666f72_6b696e67_43686563_2e000000_2052414d_5820746f_20494845;
+defparam bootram.RAM2.INIT_23=256'h56616c69_2e2e2e00_6d616765_47412069_6e204650_6374696f_726f6475_69642070;
+defparam bootram.RAM2.INIT_24=256'h642e2041_666f756e_61676520_4120696d_20465047_74696f6e_6f647563_64207072;
+defparam bootram.RAM2.INIT_25=256'h2070726f_616c6964_4e6f2076_742e0000_20626f6f_6720746f_7074696e_7474656d;
+defparam bootram.RAM2.INIT_26=256'h74656d70_2e0a4174_6f756e64_67652066_20696d61_46504741_696f6e20_64756374;
+defparam bootram.RAM2.INIT_27=256'h77617265_6669726d_696f6e20_64756374_2070726f_6c6f6164_20746f20_74696e67;
+defparam bootram.RAM2.INIT_28=256'h6520666f_6d776172_20666972_74696f6e_6f647563_64207072_56616c69_2e2e2e00;
+defparam bootram.RAM2.INIT_29=256'h64696e67_206c6f61_73686564_46696e69_2e2e2e00_64696e67_204c6f61_756e642e;
+defparam bootram.RAM2.INIT_2A=256'h65747572_523a2052_4552524f_2e000000_6d616765_6e672069_61727469_2e205374;
+defparam bootram.RAM2.INIT_2B=256'h6f756c64_73207368_20546869_72616d21_70726f67_61696e20_6f6d206d_6e206672;
+defparam bootram.RAM2.INIT_2C=256'h64756374_2070726f_616c6964_4e6f2076_6e210000_61707065_65722068_206e6576;
+defparam bootram.RAM2.INIT_2D=256'h61666520_6e672073_54727969_6e642e20_20666f75_77617265_6669726d_696f6e20;
+defparam bootram.RAM2.INIT_2E=256'h00202020_0b0b0b0b_01b200d9_05160364_14580a2c_2e2e2e00_77617265_6669726d;
+defparam bootram.RAM2.INIT_2F=256'h20881010_20202020_20202020_20202020_20202020_28282820_20202828_20202020;
+defparam bootram.RAM2.INIT_30=256'h10104141_10101010_04040410_04040404_10040404_10101010_10101010_10101010;
+defparam bootram.RAM2.INIT_31=256'h10104242_10101010_01010101_01010101_01010101_01010101_01010101_41414141;
+defparam bootram.RAM2.INIT_32=256'h20000000_10101010_02020202_02020202_02020202_02020202_02020202_42424242;
+defparam bootram.RAM2.INIT_33=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM2.INIT_34=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM2.INIT_35=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM2.INIT_36=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM2.INIT_37=256'hffffff00_ffff00ff_ff00ffff_00ffffff_43000000_65000000_792e6578_64756d6d;
+defparam bootram.RAM2.INIT_38=256'h0018000f_ffff0031_05050400_01010100_00001ab4_00000000_00000000_00000000;
+defparam bootram.RAM2.INIT_39=256'h00000000_00001a4c_000019f0_00001994_00000000_0000172c_000016e0_000b0000;
+defparam bootram.RAM2.INIT_3A=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM2.INIT_3B=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_000016ec;
+defparam bootram.RAM2.INIT_3C=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM2.INIT_3D=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM2.INIT_3E=256'h1234e66d_330eabcd_00000001_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM2.INIT_3F=256'h00000000_00000000_00000000_00000000_00000000_00000000_000b0000_deec0005;
+defparam bootram.RAM3.INIT_00=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_01=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_02=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_03=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_04=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_05=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_06=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_07=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_08=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_09=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_0A=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_0B=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_0C=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_0D=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_0E=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_0F=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_10=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_11=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_12=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_13=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_14=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_15=256'h00000000_00000000_00000000_ffffffff_00000000_ffffffff_00000000_00000000;
+defparam bootram.RAM3.INIT_16=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_17=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_18=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_19=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_1A=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_1B=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_1C=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_1D=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_1E=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_1F=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_20=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_21=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_22=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_23=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
 defparam bootram.RAM3.INIT_24=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
 defparam bootram.RAM3.INIT_25=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
 defparam bootram.RAM3.INIT_26=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
@@ -233,13 +233,24 @@ defparam bootram.RAM3.INIT_27=256'h00000000_00000000_00000000_00000000_00000000_
 defparam bootram.RAM3.INIT_28=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
 defparam bootram.RAM3.INIT_29=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
 defparam bootram.RAM3.INIT_2A=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
-defparam bootram.RAM3.INIT_2B=256'h28282020_20282828_20202020_20202020_00000000_00000000_00000000_00000000;
-defparam bootram.RAM3.INIT_2C=256'h10101010_10101010_10101010_88101010_20202020_20202020_20202020_20202020;
-defparam bootram.RAM3.INIT_2D=256'h01010101_01010101_41414101_10414141_10101010_04041010_04040404_04040404;
-defparam bootram.RAM3.INIT_2E=256'h02020202_02020202_42424202_10424242_10101010_01010110_01010101_01010101;
-defparam bootram.RAM3.INIT_2F=256'h00000000_00000000_00000000_00000000_10101020_02020210_02020202_02020202;
+defparam bootram.RAM3.INIT_2B=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_2C=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_2D=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_2E=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_2F=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
 defparam bootram.RAM3.INIT_30=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
 defparam bootram.RAM3.INIT_31=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
 defparam bootram.RAM3.INIT_32=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
-defparam bootram.RAM3.INIT_33=256'h01010100_00001948_00000000_00000000_00000000_00000000_00000000_00000000;
-defparam bootram.RAM3.INIT_34=256'h00000000_00000000_00000000_00000000_00000000_00000000_00001d70_ffffffff;
+defparam bootram.RAM3.INIT_33=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_34=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_35=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_36=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_37=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_38=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_39=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_3A=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_3B=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_3C=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_3D=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_3E=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
+defparam bootram.RAM3.INIT_3F=256'h00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000;
diff --git a/fpga/usrp2/top/u2plus/u2plus_core.v b/fpga/usrp2/top/u2plus/u2plus_core.v
index 4e0b190ef..3edb539f7 100644
--- a/fpga/usrp2/top/u2plus/u2plus_core.v
+++ b/fpga/usrp2/top/u2plus/u2plus_core.v
@@ -131,7 +131,7 @@ module u2plus_core
    output spiflash_cs, output spiflash_clk, input spiflash_miso, output spiflash_mosi
    );
 
-   localparam SR_BUF_POOL = 64;   // Uses 1 reg
+   localparam SR_BUF_POOL = 64;   // router
    localparam SR_UDP_SM   = 96;   // 64 regs
    localparam SR_RX_DSP   = 160;  // 16
    localparam SR_RX_CTRL  = 176;  // 16
@@ -153,9 +153,9 @@ module u2plus_core
    wire [31:0] 	set_data, set_data_dsp;
    wire 	set_stb, set_stb_dsp;
    
-   wire 	wb_rst, dsp_rst;
+   reg wb_rst; wire dsp_rst;
 
-   wire [31:0] 	status, status_b0, status_b1, status_b2, status_b3, status_b4, status_b5, status_b6, status_b7;
+   wire [31:0] 	status;
    wire 	bus_error, spi_int, i2c_int, pps_int, onetime_int, periodic_int, buffer_int;
    wire 	proc_int, overrun, underrun;
    wire [3:0] 	uart_tx_int, uart_rx_int;
@@ -173,7 +173,7 @@ module u2plus_core
    wire 	serdes_link_up;
    wire 	epoch;
    wire [31:0] 	irq;
-   wire [63:0] 	vita_time;
+   wire [63:0] 	vita_time, vita_time_pps;
    wire 	run_rx, run_tx;
    
    // ///////////////////////////////////////////////////////////////////////////////////////////////
@@ -197,21 +197,21 @@ module u2plus_core
    
    wb_1master #(.decode_w(8),
 		.s0_addr(8'b0000_0000),.s0_mask(8'b1110_0000),  // 0-8K, Boot RAM
-		.s1_addr(8'b0100_0000),.s1_mask(8'b1100_0000),  // 16K-32K, Buffer Pool
- 		.s2_addr(8'b0011_0000),.s2_mask(8'b1111_1111),  // SPI
-		.s3_addr(8'b0011_0001),.s3_mask(8'b1111_1111),  // I2C
-		.s4_addr(8'b0011_0010),.s4_mask(8'b1111_1111),  // GPIO
-		.s5_addr(8'b0011_0011),.s5_mask(8'b1111_1111),  // Readback
-		.s6_addr(8'b0011_0100),.s6_mask(8'b1111_1111),  // Ethernet MAC
-		.s7_addr(8'b0010_0000),.s7_mask(8'b1111_0000),  // 8-12K, Settings Bus (only uses 1K)
-		.s8_addr(8'b0011_0101),.s8_mask(8'b1111_1111),  // PIC
-		.s9_addr(8'b0011_0110),.s9_mask(8'b1111_1111),  // Unused
-		.sa_addr(8'b0011_0111),.sa_mask(8'b1111_1111),  // UART
-		.sb_addr(8'b0011_1000),.sb_mask(8'b1111_1111),  // ATR
-		.sc_addr(8'b0011_1001),.sc_mask(8'b1111_1111),  // Unused
-		.sd_addr(8'b0011_1010),.sd_mask(8'b1111_1111),  // ICAP
-		.se_addr(8'b0011_1011),.se_mask(8'b1111_1111),  // SPI Flash
-		.sf_addr(8'b1000_0000),.sf_mask(8'b1000_0000),  // 32-64K, Main RAM
+		.s1_addr(8'b0100_0000),.s1_mask(8'b1111_0000),  // 16K-20K, Buffer Pool
+		.s2_addr(8'b0110_0000),.s2_mask(8'b1111_1111),  // SPI
+		.s3_addr(8'b0110_0001),.s3_mask(8'b1111_1111),  // I2C
+		.s4_addr(8'b0110_0010),.s4_mask(8'b1111_1111),  // GPIO
+		.s5_addr(8'b0110_0011),.s5_mask(8'b1111_1111),  // Readback
+		.s6_addr(8'b0110_0100),.s6_mask(8'b1111_1111),  // Ethernet MAC
+		.s7_addr(8'b0101_0000),.s7_mask(8'b1111_0000),  // 20K-24K, Settings Bus (only uses 1K)
+		.s8_addr(8'b0110_0101),.s8_mask(8'b1111_1111),  // PIC
+		.s9_addr(8'b0110_0110),.s9_mask(8'b1111_1111),  // Unused
+		.sa_addr(8'b0110_0111),.sa_mask(8'b1111_1111),  // UART
+		.sb_addr(8'b0110_1000),.sb_mask(8'b1111_1111),  // ATR
+		.sc_addr(8'b0110_1001),.sc_mask(8'b1111_1111),  // Unused
+		.sd_addr(8'b0110_1010),.sd_mask(8'b1111_1111),  // ICAP
+		.se_addr(8'b0110_1011),.se_mask(8'b1111_1111),  // SPI Flash
+		.sf_addr(8'b1000_0000),.sf_mask(8'b1100_0000),  // 32-48K, Main RAM
 		.dw(dw),.aw(aw),.sw(sw)) wb_1master
      (.clk_i(wb_clk),.rst_i(wb_rst),       
       .m0_dat_o(m0_dat_o),.m0_ack_o(m0_ack),.m0_err_o(m0_err),.m0_rty_o(m0_rty),.m0_dat_i(m0_dat_i),
@@ -251,35 +251,75 @@ module u2plus_core
       
    //////////////////////////////////////////////////////////////////////////////////////////
    // Reset Controller
-   
+
+    reg cpu_bldr_ctrl_state;
+    localparam CPU_BLDR_CTRL_WAIT = 0;
+    localparam CPU_BLDR_CTRL_DONE = 1;
+
+    wire bldr_done;
+    wire por_rst;
+    wire [aw-1:0] cpu_adr;
+    wire [aw-1:0] cpu_sp_init = (cpu_bldr_ctrl_state == CPU_BLDR_CTRL_DONE)?
+        16'hfff8 : //top of 8K boot ram re-purposed at 56K
+        16'h1ff8 ; //top of 8K boot ram
+
+    //When the main program runs, it will try to access system ram at 0.
+    //This logic re-maps the cpu address to force select the system ram.
+    assign m0_adr =
+        (cpu_bldr_ctrl_state == CPU_BLDR_CTRL_WAIT)? cpu_adr : ( //in bootloader
+        (cpu_adr[15:14] == 2'b00)?   {2'b10, cpu_adr[13:0]}  : ( //map 0-16 to 32-48 (main ram)
+        (cpu_adr[15:13] == 3'b111)?  {3'b000, cpu_adr[12:0]} : ( //map 56-64 to 0-8 (boot ram)
+    cpu_adr))); //otherwise
+
+    system_control sysctrl (
+        .wb_clk_i(wb_clk), .wb_rst_o(por_rst), .ram_loader_done_i(1'b1)
+    );
+
+    always @(posedge wb_clk)
+    if(por_rst) begin
+        cpu_bldr_ctrl_state <= CPU_BLDR_CTRL_WAIT;
+        wb_rst <= 1'b1;
+    end
+    else begin
+        case(cpu_bldr_ctrl_state)
+
+        CPU_BLDR_CTRL_WAIT: begin
+            wb_rst <= 1'b0;
+            if (bldr_done == 1'b1) begin //set by the bootloader
+                cpu_bldr_ctrl_state <= CPU_BLDR_CTRL_DONE;
+                wb_rst <= 1'b1;
+            end
+        end
+
+        CPU_BLDR_CTRL_DONE: begin //stay here forever
+            wb_rst <= 1'b0;
+        end
+
+        endcase //cpu_bldr_ctrl_state
+    end
+
    // /////////////////////////////////////////////////////////////////////////
    // Processor
-   wire [31:0] 	 if_dat;
-   wire [15:0] 	 if_adr;
-
-   aeMB_core_BE #(.ISIZ(16),.DSIZ(16),.MUL(0),.BSF(1))
-     aeMB (.sys_clk_i(wb_clk), .sys_rst_i(wb_rst),
-	   // Instruction Wishbone bus to I-RAM
-	   .if_adr(if_adr),
-	   .if_dat(if_dat),
+
+   assign 	 bus_error = m0_err | m0_rty;
+
+   wire [63:0] zpu_status;
+   zpu_wb_top #(.dat_w(dw), .adr_w(aw), .sel_w(sw))
+     zpu_top0 (.clk(wb_clk), .rst(wb_rst), .enb(~wb_rst),
 	   // Data Wishbone bus to system bus fabric
-	   .dwb_we_o(m0_we),.dwb_stb_o(m0_stb),.dwb_dat_o(m0_dat_i),.dwb_adr_o(m0_adr),
-	   .dwb_dat_i(m0_dat_o),.dwb_ack_i(m0_ack),.dwb_sel_o(m0_sel),.dwb_cyc_o(m0_cyc),
+	   .we_o(m0_we),.stb_o(m0_stb),.dat_o(m0_dat_i),.adr_o(cpu_adr),
+	   .dat_i(m0_dat_o),.ack_i(m0_ack),.sel_o(m0_sel),.cyc_o(m0_cyc),
 	   // Interrupts and exceptions
-	   .sys_int_i(proc_int),.sys_exc_i(bus_error) );
-   
-   assign 	 bus_error = m0_err | m0_rty;
-   
+	   .stack_start(cpu_sp_init), .zpu_status(zpu_status), .interrupt(proc_int & 1'b0));
+
+
    // /////////////////////////////////////////////////////////////////////////
    // Dual Ported Boot RAM -- D-Port is Slave #0 on main Wishbone
    // Dual Ported Main RAM -- D-Port is Slave #F on main Wishbone
    // I-port connects directly to processor
 
-   wire [31:0] 	 if_dat_boot, if_dat_main;
-   assign if_dat = if_adr[15] ? if_dat_main : if_dat_boot;
-   
    bootram bootram(.clk(wb_clk), .reset(wb_rst),
-		   .if_adr(if_adr[12:0]), .if_data(if_dat_boot), 
+		   .if_adr(13'b0), .if_data(),
 		   .dwb_adr_i(s0_adr[12:0]), .dwb_dat_i(s0_dat_o), .dwb_dat_o(s0_dat_i),
 		   .dwb_we_i(s0_we), .dwb_ack_o(s0_ack), .dwb_stb_i(s0_stb), .dwb_sel_i(s0_sel));
 
@@ -289,10 +329,10 @@ module u2plus_core
 
 `include "bootloader.rmi"
 
-   ram_harvard2 #(.AWIDTH(15),.RAM_SIZE(32768))
+   ram_harvard2 #(.AWIDTH(14),.RAM_SIZE(16384))
    sys_ram(.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),	     
-	   .if_adr(if_adr[14:0]), .if_data(if_dat_main), 
-	   .dwb_adr_i(sf_adr[14:0]), .dwb_dat_i(sf_dat_o), .dwb_dat_o(sf_dat_i),
+	   .if_adr(14'b0), .if_data(),
+	   .dwb_adr_i(sf_adr[13:0]), .dwb_dat_i(sf_dat_o), .dwb_dat_o(sf_dat_i),
 	   .dwb_we_i(sf_we), .dwb_ack_o(sf_ack), .dwb_stb_i(sf_stb), .dwb_sel_i(sf_sel));
    
    // /////////////////////////////////////////////////////////////////////////
@@ -310,34 +350,33 @@ module u2plus_core
    wire 	 wr3_ready_i, wr3_ready_o;
    wire [3:0] 	 wr0_flags, wr1_flags, wr2_flags, wr3_flags;
    wire [31:0] 	 wr0_dat, wr1_dat, wr2_dat, wr3_dat;
-   
-   buffer_pool #(.BUF_SIZE(9), .SET_ADDR(SR_BUF_POOL)) buffer_pool
+
+   wire [35:0] 	 tx_err_data;
+   wire 	 tx_err_src_rdy, tx_err_dst_rdy;
+
+   wire [31:0] router_debug;
+
+   packet_router #(.BUF_SIZE(9), .UDP_BASE(SR_UDP_SM), .CTRL_BASE(SR_BUF_POOL)) packet_router
      (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),
-      .wb_we_i(s1_we),.wb_stb_i(s1_stb),.wb_adr_i(s1_adr),.wb_dat_i(s1_dat_o),   
+      .wb_we_i(s1_we),.wb_stb_i(s1_stb),.wb_adr_i(s1_adr),.wb_dat_i(s1_dat_o),
       .wb_dat_o(s1_dat_i),.wb_ack_o(s1_ack),.wb_err_o(),.wb_rty_o(),
-   
-      .stream_clk(dsp_clk), .stream_rst(dsp_rst),
+
       .set_stb(set_stb_dsp), .set_addr(set_addr_dsp), .set_data(set_data_dsp),
-      .status(status),.sys_int_o(buffer_int),
-
-      .s0(status_b0),.s1(status_b1),.s2(status_b2),.s3(status_b3),
-      .s4(status_b4),.s5(status_b5),.s6(status_b6),.s7(status_b7),
-
-      // Write Interfaces
-      .wr0_data_i(wr0_dat), .wr0_flags_i(wr0_flags), .wr0_ready_i(wr0_ready_i), .wr0_ready_o(wr0_ready_o),
-      .wr1_data_i(wr1_dat), .wr1_flags_i(wr1_flags), .wr1_ready_i(wr1_ready_i), .wr1_ready_o(wr1_ready_o),
-      .wr2_data_i(wr2_dat), .wr2_flags_i(wr2_flags), .wr2_ready_i(wr2_ready_i), .wr2_ready_o(wr2_ready_o),
-      .wr3_data_i(wr3_dat), .wr3_flags_i(wr3_flags), .wr3_ready_i(wr3_ready_i), .wr3_ready_o(wr3_ready_o),
-      // Read Interfaces
-      .rd0_data_o(rd0_dat), .rd0_flags_o(rd0_flags), .rd0_ready_i(rd0_ready_i), .rd0_ready_o(rd0_ready_o),
-      .rd1_data_o(rd1_dat), .rd1_flags_o(rd1_flags), .rd1_ready_i(rd1_ready_i), .rd1_ready_o(rd1_ready_o),
-      .rd2_data_o(rd2_dat), .rd2_flags_o(rd2_flags), .rd2_ready_i(rd2_ready_i), .rd2_ready_o(rd2_ready_o),
-      .rd3_data_o(rd3_dat), .rd3_flags_o(rd3_flags), .rd3_ready_i(rd3_ready_i), .rd3_ready_o(rd3_ready_o)
+
+      .stream_clk(dsp_clk), .stream_rst(dsp_rst), .stream_clr(1'b0),
+
+      .status(status), .sys_int_o(buffer_int), .debug(router_debug),
+
+      .ser_inp_data({wr0_flags, wr0_dat}), .ser_inp_valid(wr0_ready_i), .ser_inp_ready(wr0_ready_o),
+      .dsp_inp_data({wr1_flags, wr1_dat}), .dsp_inp_valid(wr1_ready_i), .dsp_inp_ready(wr1_ready_o),
+      .eth_inp_data({wr2_flags, wr2_dat}), .eth_inp_valid(wr2_ready_i), .eth_inp_ready(wr2_ready_o),
+      .err_inp_data(tx_err_data), .err_inp_ready(tx_err_dst_rdy), .err_inp_valid(tx_err_src_rdy),
+
+      .ser_out_data({rd0_flags, rd0_dat}), .ser_out_valid(rd0_ready_o), .ser_out_ready(rd0_ready_i),
+      .dsp_out_data({rd1_flags, rd1_dat}), .dsp_out_valid(rd1_ready_o), .dsp_out_ready(rd1_ready_i),
+      .eth_out_data({rd2_flags, rd2_dat}), .eth_out_valid(rd2_ready_o), .eth_out_ready(rd2_ready_i)
       );
 
-   wire [31:0] 	 status_enc;
-   priority_enc priority_enc (.in({16'b0,status[15:0]}), .out(status_enc));
-   
    // /////////////////////////////////////////////////////////////////////////
    // SPI -- Slave #2
    spi_top shared_spi
@@ -370,31 +409,25 @@ module u2plus_core
    // /////////////////////////////////////////////////////////////////////////
    // Buffer Pool Status -- Slave #5   
    
-   reg [31:0] 	 cycle_count;
-   always @(posedge wb_clk)
-     if(wb_rst)
-       cycle_count <= 0;
-     else
-       cycle_count <= cycle_count + 1;
-
    //compatibility number -> increment when the fpga has been sufficiently altered
-   localparam compat_num = 32'd3;
+   localparam compat_num = 32'd4;
 
    wb_readback_mux buff_pool_status
      (.wb_clk_i(wb_clk), .wb_rst_i(wb_rst), .wb_stb_i(s5_stb),
       .wb_adr_i(s5_adr), .wb_dat_o(s5_dat_i), .wb_ack_o(s5_ack),
       
-      .word00(status_b0),.word01(status_b1),.word02(status_b2),.word03(status_b3),
-      .word04(status_b4),.word05(status_b5),.word06(status_b6),.word07(status_b7),
+      .word00(32'b0),.word01(32'b0),.word02(32'b0),.word03(32'b0),
+      .word04(32'b0),.word05(32'b0),.word06(32'b0),.word07(32'b0),
       .word08(status),.word09({sim_mode,27'b0,clock_divider[3:0]}),.word10(vita_time[63:32]),
-      .word11(vita_time[31:0]),.word12(compat_num),.word13(irq),.word14(status_enc),.word15(cycle_count)
+      .word11(vita_time[31:0]),.word12(compat_num),.word13(irq),
+      .word14(vita_time_pps[63:32]),.word15(vita_time_pps[31:0])
       );
 
    // /////////////////////////////////////////////////////////////////////////
    // Ethernet MAC  Slave #6
 
    wire [18:0] 	 rx_f19_data, tx_f19_data;
-   wire 	 rx_f19_src_rdy, rx_f19_dst_rdy, rx_f36_src_rdy, rx_f36_dst_rdy;
+   wire 	 rx_f19_src_rdy, rx_f19_dst_rdy, tx_f19_src_rdy, tx_f19_dst_rdy;
    
    simple_gemac_wrapper19 #(.RXFIFOSIZE(11), .TXFIFOSIZE(6)) simple_gemac_wrapper19
      (.clk125(clk_to_mac),  .reset(wb_rst),
@@ -410,36 +443,38 @@ module u2plus_core
       .mdio(MDIO), .mdc(MDC),
       .debug(debug_mac));
 
-   wire [35:0] 	 udp_tx_data, udp_rx_data;
-   wire 	 udp_tx_src_rdy, udp_tx_dst_rdy, udp_rx_src_rdy, udp_rx_dst_rdy;
-   
-   udp_wrapper #(.BASE(SR_UDP_SM)) udp_wrapper
+   wire [35:0] 	 rx_f36_data, tx_f36_data;
+   wire 	 rx_f36_src_rdy, rx_f36_dst_rdy, tx_f36_src_rdy, tx_f36_dst_rdy;
+
+   wire [18:0] 	 _rx_f19_data;
+   wire 	 _rx_f19_src_rdy, _rx_f19_dst_rdy;
+
+   //mac rx to eth input...
+   fifo19_rxrealign fifo19_rxrealign
      (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
-      .set_stb(set_stb_dsp), .set_addr(set_addr_dsp), .set_data(set_data_dsp),
-      .rx_f19_data(rx_f19_data), .rx_f19_src_rdy_i(rx_f19_src_rdy), .rx_f19_dst_rdy_o(rx_f19_dst_rdy),
-      .tx_f19_data(tx_f19_data), .tx_f19_src_rdy_o(tx_f19_src_rdy), .tx_f19_dst_rdy_i(tx_f19_dst_rdy),
-      .rx_f36_data(udp_rx_data), .rx_f36_src_rdy_o(udp_rx_src_rdy), .rx_f36_dst_rdy_i(udp_rx_dst_rdy),
-      .tx_f36_data(udp_tx_data), .tx_f36_src_rdy_i(udp_tx_src_rdy), .tx_f36_dst_rdy_o(udp_tx_dst_rdy),
-      .debug(debug_udp) );
+      .datain(rx_f19_data), .src_rdy_i(rx_f19_src_rdy), .dst_rdy_o(rx_f19_dst_rdy),
+      .dataout(_rx_f19_data), .src_rdy_o(_rx_f19_src_rdy), .dst_rdy_i(_rx_f19_dst_rdy) );
 
-   wire [35:0] 	 tx_err_data, udp1_tx_data;
-   wire 	 tx_err_src_rdy, tx_err_dst_rdy, udp1_tx_src_rdy, udp1_tx_dst_rdy;
-   
-   fifo_cascade #(.WIDTH(36), .SIZE(ETH_TX_FIFOSIZE)) tx_eth_fifo
+   fifo19_to_fifo36 eth_inp_fifo19_to_fifo36
      (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
-      .datain({rd2_flags,rd2_dat}), .src_rdy_i(rd2_ready_o), .dst_rdy_o(rd2_ready_i),
-      .dataout(udp1_tx_data), .src_rdy_o(udp1_tx_src_rdy), .dst_rdy_i(udp1_tx_dst_rdy));
+      .f19_datain(_rx_f19_data),  .f19_src_rdy_i(_rx_f19_src_rdy), .f19_dst_rdy_o(_rx_f19_dst_rdy),
+      .f36_dataout(rx_f36_data), .f36_src_rdy_o(rx_f36_src_rdy), .f36_dst_rdy_i(rx_f36_dst_rdy) );
 
-   fifo36_mux #(.prio(0)) mux_err_stream
-     (.clk(dsp_clk), .reset(dsp_reset), .clear(0),
-      .data0_i(udp1_tx_data), .src0_rdy_i(udp1_tx_src_rdy), .dst0_rdy_o(udp1_tx_dst_rdy),
-      .data1_i(tx_err_data), .src1_rdy_i(tx_err_src_rdy), .dst1_rdy_o(tx_err_dst_rdy),
-      .data_o(udp_tx_data), .src_rdy_o(udp_tx_src_rdy), .dst_rdy_i(udp_tx_dst_rdy));
-   
    fifo_cascade #(.WIDTH(36), .SIZE(ETH_RX_FIFOSIZE)) rx_eth_fifo
      (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
-      .datain(udp_rx_data), .src_rdy_i(udp_rx_src_rdy), .dst_rdy_o(udp_rx_dst_rdy),
+      .datain(rx_f36_data), .src_rdy_i(rx_f36_src_rdy), .dst_rdy_o(rx_f36_dst_rdy),
       .dataout({wr2_flags,wr2_dat}), .src_rdy_o(wr2_ready_i), .dst_rdy_i(wr2_ready_o));
+
+   //eth output to mac tx...
+   fifo_cascade #(.WIDTH(36), .SIZE(ETH_TX_FIFOSIZE)) tx_eth_fifo
+     (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
+      .datain({rd2_flags,rd2_dat}), .src_rdy_i(rd2_ready_o), .dst_rdy_o(rd2_ready_i),
+      .dataout(tx_f36_data), .src_rdy_o(tx_f36_src_rdy), .dst_rdy_i(tx_f36_dst_rdy));
+
+   fifo36_to_fifo19 eth_out_fifo36_to_fifo19
+     (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
+      .f36_datain(tx_f36_data),  .f36_src_rdy_i(tx_f36_src_rdy), .f36_dst_rdy_o(tx_f36_dst_rdy),
+      .f19_dataout(tx_f19_data), .f19_src_rdy_o(tx_f19_src_rdy), .f19_dst_rdy_i(tx_f19_dst_rdy) );
    
    // /////////////////////////////////////////////////////////////////////////
    // Settings Bus -- Slave #7
@@ -471,6 +506,8 @@ module u2plus_core
 				      .in(set_data),.out(adc_outs),.changed());
    setting_reg #(.my_addr(4),.width(1)) sr_phy (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
 				      .in(set_data),.out(phy_reset),.changed());
+   setting_reg #(.my_addr(5),.width(1)) sr_bldr (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
+				      .in(set_data),.out(bldr_done),.changed());
 
    // /////////////////////////////////////////////////////////////////////////
    //  LEDS
@@ -555,7 +592,7 @@ module u2plus_core
    // ICAP for reprogramming the FPGA, Slave #13 (D)
 
    s3a_icap_wb s3a_icap_wb
-     (.clk(wb_clk), .reset(wb_rst), .cyc_i(sd_cyc), .stb_i(sd_stb), 
+     (.clk(wb_clk), .reset(wb_rst), .cyc_i(sd_cyc), .stb_i(sd_stb),
       .we_i(sd_we), .ack_o(sd_ack), .dat_i(sd_dat_o), .dat_o(sd_dat_i));
    
    // /////////////////////////////////////////////////////////////////////////
@@ -652,7 +689,8 @@ module u2plus_core
 
    vita_tx_chain #(.BASE_CTRL(SR_TX_CTRL), .BASE_DSP(SR_TX_DSP), 
 		   .REPORT_ERROR(1), .DO_FLOW_CONTROL(1),
-		   .PROT_ENG_FLAGS(1), .USE_TRANS_HEADER(1)) 
+		   .PROT_ENG_FLAGS(1), .USE_TRANS_HEADER(1),
+		   .DSP_NUMBER(0))
    vita_tx_chain
      (.clk(dsp_clk), .reset(dsp_rst),
       .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp),
@@ -681,10 +719,13 @@ module u2plus_core
    // /////////////////////////////////////////////////////////////////////////
    // VITA Timing
 
+   wire [31:0] 	 debug_sync;
+   
    time_64bit #(.TICKS_PER_SEC(32'd100000000),.BASE(SR_TIME64)) time_64bit
      (.clk(dsp_clk), .rst(dsp_rst), .set_stb(set_stb_dsp), .set_addr(set_addr_dsp), .set_data(set_data_dsp),
-      .pps(pps_in), .vita_time(vita_time), .pps_int(pps_int),
-      .exp_time_in(exp_time_in), .exp_time_out(exp_time_out));
+      .pps(pps_in), .vita_time(vita_time), .vita_time_pps(vita_time_pps), .pps_int(pps_int),
+      .exp_time_in(exp_time_in), .exp_time_out(exp_time_out),
+      .debug(debug_sync));
    
    // /////////////////////////////////////////////////////////////////////////////////////////
    // Debug Pins
diff --git a/fpga/usrp2/udp/prot_eng_tx.v b/fpga/usrp2/udp/prot_eng_tx.v
index a18eb73ae..c642842f6 100644
--- a/fpga/usrp2/udp/prot_eng_tx.v
+++ b/fpga/usrp2/udp/prot_eng_tx.v
@@ -7,6 +7,8 @@
 //            Odd means the last word is half full
 //   Flags[1:0] is {eop, sop}
 //   Protocol word format is:
+//             21   UDP Source Port Here
+//             20   UDP Dest Port Here
 //             19   Last Header Line
 //             18   IP Header Checksum XOR
 //             17   IP Length Here
@@ -34,28 +36,40 @@ module prot_eng_tx
    assign dst_rdy_o 	 = dst_rdy_i & (do_payload | (state==0) | (state==1) | (state==30));
    assign src_rdy_o 	 = src_rdy_i & ~((state==0) | (state==1) | (state==30));
    
-   localparam HDR_WIDTH  = 16 + 4;  // 16 bits plus flags
+   localparam HDR_WIDTH  = 16 + 6;  // 16 bits plus flags
    localparam HDR_LEN 	 = 32;      // Up to 64 bytes of protocol
    
    // Store header values in a small dual-port (distributed) ram
    reg [HDR_WIDTH-1:0] header_ram[0:HDR_LEN-1];
    wire [HDR_WIDTH-1:0] header_word;
-   reg [15:0]  chk_precompute;
-   
+
+   reg [1:0] 		port_sel;
+   reg [31:0] 		per_port_data[0:3];
+   reg [15:0] 		udp_src_port, udp_dst_port, chk_precompute;
+
+   always @(posedge clk) udp_src_port <= per_port_data[port_sel][31:16];
+   always @(posedge clk) udp_dst_port <= per_port_data[port_sel][15:0];
+
    always @(posedge clk)
      if(set_stb & ((set_addr & 8'hE0) == BASE))
-       begin
-	  header_ram[set_addr[4:0]] <= set_data;
-	  if(set_data[18])
-	    chk_precompute <= set_data[15:0];
-       end
+       header_ram[set_addr[4:0]] <= set_data;
+
+   always @(posedge clk)
+     if(set_stb & (set_addr == (BASE + 14)))
+       chk_precompute <= set_data[15:0];
+
+   always @(posedge clk)
+     if(set_stb & ((set_addr & 8'hFC) == (BASE+24)))
+       per_port_data[set_addr[1:0]] <= set_data;
    
-   assign header_word = header_ram[state];
+   wire do_udp_src_port = header_word[21];
+   wire do_udp_dst_port = header_word[20];
+   wire last_hdr_line   = header_word[19];
+   wire do_ip_chk       = header_word[18];
+   wire do_ip_len       = header_word[17];
+   wire do_udp_len      = header_word[16];
 
-   wire last_hdr_line  = header_word[19];
-   wire ip_chk 	       = header_word[18];
-   wire ip_len 	       = header_word[17];
-   wire udp_len        = header_word[16];
+   assign header_word = header_ram[state];
    
    // Protocol State Machine
    reg [15:0] length;
@@ -75,6 +89,7 @@ module prot_eng_tx
 	   0 :
 	     begin
 		fast_path <= datain[0];
+		port_sel <= datain[2:1];
 		state <= 1;
 	     end
 	   1 :
@@ -113,15 +128,18 @@ module prot_eng_tx
      checksum_reg <= checksum;
    
    always @*
-     if(ip_chk)
-       //dataout_int 	<= header_word[15:0] ^ ip_length;
+     if(do_payload)
+       dataout_int 	<= datain[15:0];
+     else if(do_ip_chk)
        dataout_int 	<= 16'hFFFF ^ checksum_reg;
-     else if(ip_len)
+     else if(do_ip_len)
        dataout_int 	<= ip_length;
-     else if(udp_len)
+     else if(do_udp_len)
        dataout_int 	<= udp_length;
-     else if(do_payload)
-       dataout_int 	<= datain[15:0];
+     else if(do_udp_src_port)
+       dataout_int      <= udp_src_port;
+     else if(do_udp_dst_port)
+       dataout_int      <= udp_dst_port;
      else
        dataout_int 	<= header_word[15:0];
    
diff --git a/fpga/usrp2/udp/prot_eng_tx_tb.v b/fpga/usrp2/udp/prot_eng_tx_tb.v
index e7ffeb5e1..c8fffe605 100644
--- a/fpga/usrp2/udp/prot_eng_tx_tb.v
+++ b/fpga/usrp2/udp/prot_eng_tx_tb.v
@@ -80,7 +80,7 @@ module prot_eng_tx_tb();
       begin
 	 count 	      <= 4;
 	 src_rdy_f36i <= 1;
-	 f36_data     <= 32'h0001_000c;
+	 f36_data     <= 32'h0003_000c;
 	 f36_sof      <= 1;
 	 f36_eof      <= 0;
 	 f36_occ      <= 0;
@@ -140,16 +140,23 @@ module prot_eng_tx_tb();
 	@(negedge rst);
 	@(posedge clk);
 	WriteSREG(BASE, {12'b0, 4'h0, 16'h0000});
-	WriteSREG(BASE+1, {12'b0, 4'h0, 16'h0000});
-	WriteSREG(BASE+2, {12'b0, 4'h0, 16'hABCD});
-	WriteSREG(BASE+3, {12'b0, 4'h0, 16'h1234});
-	WriteSREG(BASE+4, {12'b0, 4'h8, 16'h5678});
-	WriteSREG(BASE+5, {12'b0, 4'h0, 16'hABCD});
-	WriteSREG(BASE+6, {12'b0, 4'h0, 16'hABCD});
-	WriteSREG(BASE+7, {12'b0, 4'h0, 16'hABCD});
-	WriteSREG(BASE+8, {12'b0, 4'h0, 16'hABCD});
-	WriteSREG(BASE+9, {12'b0, 4'h0, 16'hABCD});
+	WriteSREG(BASE+1, {11'b0, 5'h00, 16'h0000});
+	WriteSREG(BASE+2, {11'b0, 5'h00, 16'hABCD});
+	WriteSREG(BASE+3, {11'b0, 5'h00, 16'h1234});
+	WriteSREG(BASE+4, {11'b0, 5'h00, 16'h5678});
+	WriteSREG(BASE+5, {11'b0, 5'h00, 16'hF00D});
+	WriteSREG(BASE+6, {11'b0, 5'h00, 16'hBEEF});
+	WriteSREG(BASE+7, {11'b0, 5'h10, 16'hDCBA});
+	WriteSREG(BASE+8, {11'b0, 5'h00, 16'h4321});
+	WriteSREG(BASE+9, {11'b0, 5'h04, 16'hABCD});
+	WriteSREG(BASE+10, {11'b0, 5'h08, 16'hABCD});
 	@(posedge clk);
+	
+	WriteSREG(BASE+24, 16'h6666);
+	WriteSREG(BASE+25, 16'h7777);
+	WriteSREG(BASE+26, 16'h8888);
+	WriteSREG(BASE+27, 16'h9999);
+	
 	PutPacketInFIFO36(32'hA0B0C0D0,16);
 	@(posedge clk);
 	@(posedge clk);
diff --git a/fpga/usrp2/vrt/gen_context_pkt.v b/fpga/usrp2/vrt/gen_context_pkt.v
index 44bb7b548..cc34cceed 100644
--- a/fpga/usrp2/vrt/gen_context_pkt.v
+++ b/fpga/usrp2/vrt/gen_context_pkt.v
@@ -1,7 +1,8 @@
 
 
 module gen_context_pkt
-  #(parameter PROT_ENG_FLAGS=1)
+  #(parameter PROT_ENG_FLAGS=1,
+    parameter DSP_NUMBER=0)
    (input clk, input reset, input clear,
     input trigger, output sent,
     input [31:0] streamid,
@@ -67,10 +68,10 @@ module gen_context_pkt
        endcase // case (ctxt_state)
 
    assign src_rdy_int = ~( (ctxt_state == CTXT_IDLE) | (ctxt_state == CTXT_DONE) );
-   
+
    always @*
      case(ctxt_state)
-       CTXT_PROT_ENG : data_int <= { 2'b01, 16'd1, 16'd28 };
+       CTXT_PROT_ENG : data_int <= { 2'b01, 13'b0, DSP_NUMBER[0], 1'b1, 1'b1, 16'd28 }; // UDP port 1 or 3
        CTXT_HEADER : data_int <= { 1'b0, (PROT_ENG_FLAGS ? 1'b0 : 1'b1), 12'b010100001101, seqno, 16'd7 };
        CTXT_STREAMID : data_int <= { 2'b00, streamid };
        CTXT_SECS : data_int <= { 2'b00, err_time[63:32] };
diff --git a/fpga/usrp2/vrt/vita_tx_chain.v b/fpga/usrp2/vrt/vita_tx_chain.v
index 2ec78189b..6f567668d 100644
--- a/fpga/usrp2/vrt/vita_tx_chain.v
+++ b/fpga/usrp2/vrt/vita_tx_chain.v
@@ -5,7 +5,8 @@ module vita_tx_chain
     parameter REPORT_ERROR=0,
     parameter DO_FLOW_CONTROL=0,
     parameter PROT_ENG_FLAGS=0,
-    parameter USE_TRANS_HEADER=0)
+    parameter USE_TRANS_HEADER=0,
+    parameter DSP_NUMBER=0)
    (input clk, input reset,
     input set_stb, input [7:0] set_addr, input [31:0] set_data,
     input [63:0] vita_time,
@@ -71,7 +72,7 @@ module vita_tx_chain
    wire [35:0] 		flow_data, err_data_int;
    wire 		flow_src_rdy, flow_dst_rdy, err_src_rdy_int, err_dst_rdy_int;
    
-   gen_context_pkt #(.PROT_ENG_FLAGS(PROT_ENG_FLAGS)) gen_flow_pkt
+   gen_context_pkt #(.PROT_ENG_FLAGS(PROT_ENG_FLAGS),.DSP_NUMBER(DSP_NUMBER)) gen_flow_pkt
      (.clk(clk), .reset(reset), .clear(clear_vita),
       .trigger(trigger & (DO_FLOW_CONTROL==1)), .sent(), 
       .streamid(streamid), .vita_time(vita_time), .message(32'd0),
@@ -82,7 +83,7 @@ module vita_tx_chain
       .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
       .packet_consumed(packet_consumed), .trigger(trigger));
    
-   gen_context_pkt #(.PROT_ENG_FLAGS(PROT_ENG_FLAGS)) gen_tx_err_pkt
+   gen_context_pkt #(.PROT_ENG_FLAGS(PROT_ENG_FLAGS),.DSP_NUMBER(DSP_NUMBER)) gen_tx_err_pkt
      (.clk(clk), .reset(reset), .clear(clear_vita),
       .trigger((error|ack) & (REPORT_ERROR==1)), .sent(), 
       .streamid(streamid), .vita_time(vita_time), .message(message),
diff --git a/fpga/usrp2/vrt/vita_tx_control.v b/fpga/usrp2/vrt/vita_tx_control.v
index ab6da8bd0..e966d987c 100644
--- a/fpga/usrp2/vrt/vita_tx_control.v
+++ b/fpga/usrp2/vrt/vita_tx_control.v
@@ -17,14 +17,12 @@ module vita_tx_control
     
     // To DSP Core
     output [WIDTH-1:0] sample,
-    output run,
+    output reg run,
     input strobe,
 
     output [31:0] debug
     );
 
-   assign sample = sample_fifo_i[5+64+16+WIDTH-1:5+64+16];
-
    wire [63:0] send_time = sample_fifo_i[63:0];
    wire [15:0] seqnum = sample_fifo_i[79:64];
    wire        eop = sample_fifo_i[80];
@@ -169,11 +167,39 @@ module vita_tx_control
 	   send_error <= 0;
        endcase // case (ibs_state)
 
+   
    assign sample_fifo_dst_rdy_o = (ibs_state == IBS_ERROR) | (strobe & (ibs_state == IBS_RUN));  // FIXME also cleanout
-   assign run = (ibs_state == IBS_RUN) | (ibs_state == IBS_CONT_BURST);
+
+   assign sample = (ibs_state == IBS_RUN) ? sample_fifo_i[5+64+16+WIDTH-1:5+64+16] : {WIDTH{1'b0}};
+   //assign run = (ibs_state == IBS_RUN) | (ibs_state == IBS_CONT_BURST);
    assign error = send_error;
    assign ack = send_ack;
 
+   localparam MAX_IDLE = 1000000; 
+   // approx 10 ms timeout with a 100 MHz clock, but burning samples will slow that down
+   reg [19:0] countdown;
+   
+   always @(posedge clk)
+     if(reset | clear)
+       begin
+	  run <= 0;
+	  countdown <= 0;
+       end
+     else 
+       if (ibs_state == IBS_RUN)
+	 if(eob & eop & strobe & sample_fifo_src_rdy_i)
+	   run <= 0;
+	 else 
+	   begin
+	      run <= 1;
+	      countdown <= MAX_IDLE;
+	   end
+       else
+	 if (countdown == 0)
+	   run <= 0;
+	 else
+	   countdown <= countdown - 1;
+   	   
    always @(posedge clk)
      if(reset | clear)
        packet_consumed <= 0;
diff --git a/host/CMakeLists.txt b/host/CMakeLists.txt
index f59cda23f..d0c576ee5 100644
--- a/host/CMakeLists.txt
+++ b/host/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -74,6 +74,7 @@ IF(CMAKE_COMPILER_IS_GNUCXX)
 ENDIF(CMAKE_COMPILER_IS_GNUCXX)
 
 IF(MSVC)
+    INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/msvc)
     ADD_DEFINITIONS(-D_WIN32_WINNT=0x0501) #minimum version required is windows xp
     ADD_DEFINITIONS(-DNOMINMAX) #disables stupidity and enables std::min and std::max
     ADD_DEFINITIONS(-D_SCL_SECURE_NO_WARNINGS) #avoid warnings from boost::split
@@ -89,7 +90,7 @@ IF(UNIX AND EXISTS "/usr/lib64")
 ENDIF(UNIX AND EXISTS "/usr/lib64")
 
 SET(Boost_ADDITIONAL_VERSIONS "1.42.0" "1.42" "1.43.0" "1.43" "1.44.0" "1.44")
-FIND_PACKAGE(Boost ${BOOST_MIN_VERSION} REQUIRED COMPONENTS
+FIND_PACKAGE(Boost ${BOOST_MIN_VERSION} COMPONENTS
     date_time
     filesystem
     program_options
@@ -103,6 +104,23 @@ INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIRS})
 LINK_DIRECTORIES(${Boost_LIBRARY_DIRS})
 
 ########################################################################
+# Check Python Modules
+########################################################################
+INCLUDE(UHDPython)
+
+PYTHON_CHECK_MODULE(
+    "Python version 2.6 or greater"
+    "platform" "platform.python_version() >= '2.6'"
+    HAVE_PYTHON_PLAT_MIN_VERSION
+)
+
+PYTHON_CHECK_MODULE(
+    "Cheetah templates 2.0.0 or greater"
+    "Cheetah" "Cheetah.Version >= '2.0.0'"
+    HAVE_PYTHON_MODULE_CHEETAH
+)
+
+########################################################################
 # Create Uninstall Target
 ########################################################################
 CONFIGURE_FILE(
@@ -140,7 +158,7 @@ INSTALL(FILES
 ########################################################################
 # Register top level components
 ########################################################################
-SET(ENABLE_LIBUHD ON) #always enabled
+LIBUHD_REGISTER_COMPONENT("LibUHD" ENABLE_LIBUHD ON "Boost_FOUND;HAVE_PYTHON_PLAT_MIN_VERSION;HAVE_PYTHON_MODULE_CHEETAH" OFF)
 LIBUHD_REGISTER_COMPONENT("Examples" ENABLE_EXAMPLES ON "ENABLE_LIBUHD" OFF)
 LIBUHD_REGISTER_COMPONENT("Utils" ENABLE_UTILS ON "ENABLE_LIBUHD" OFF)
 LIBUHD_REGISTER_COMPONENT("Tests" ENABLE_TESTS ON "ENABLE_LIBUHD" OFF)
@@ -161,7 +179,7 @@ IF(ENABLE_LIBUHD)
 ENDIF(ENABLE_LIBUHD)
 
 IF(ENABLE_TESTS)
-    ADD_SUBDIRECTORY(test)
+    ADD_SUBDIRECTORY(tests)
 ENDIF(ENABLE_TESTS)
 
 IF(ENABLE_UTILS)
diff --git a/host/Modules/FindDocutils.cmake b/host/Modules/FindDocutils.cmake
index b9996f3f1..3a97d8643 100644
--- a/host/Modules/FindDocutils.cmake
+++ b/host/Modules/FindDocutils.cmake
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2011-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/host/Modules/FindGit.cmake b/host/Modules/FindGit.cmake
new file mode 100644
index 000000000..2d8214287
--- /dev/null
+++ b/host/Modules/FindGit.cmake
@@ -0,0 +1,46 @@
+# The module defines the following variables:
+#   GIT_EXECUTABLE - path to git command line client
+#   GIT_FOUND - true if the command line client was found
+# Example usage:
+#   find_package(Git)
+#   if(GIT_FOUND)
+#     message("git found: ${GIT_EXECUTABLE}")
+#   endif()
+
+#=============================================================================
+# Copyright 2010 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distributed this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+# Look for 'git' or 'eg' (easy git)
+#
+set(git_names git eg)
+
+# Prefer .cmd variants on Windows unless running in a Makefile
+# in the MSYS shell.
+#
+if(WIN32)
+  if(NOT CMAKE_GENERATOR MATCHES "MSYS")
+    set(git_names git.cmd git eg.cmd eg)
+  endif()
+endif()
+
+find_program(GIT_EXECUTABLE
+  NAMES ${git_names}
+  DOC "git command line client"
+  )
+mark_as_advanced(GIT_EXECUTABLE)
+
+# Handle the QUIETLY and REQUIRED arguments and set GIT_FOUND to TRUE if
+# all listed variables are TRUE
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Git DEFAULT_MSG GIT_EXECUTABLE)
diff --git a/host/Modules/UHDComponent.cmake b/host/Modules/UHDComponent.cmake
index 0263b071f..4ea55bbb9 100644
--- a/host/Modules/UHDComponent.cmake
+++ b/host/Modules/UHDComponent.cmake
@@ -27,27 +27,17 @@ SET(_uhd_disabled_components "" CACHE INTERNAL "" FORCE)
 #  - deps a list of dependencies
 #  - dis the default disable setting
 ########################################################################
-FUNCTION(LIBUHD_REGISTER_COMPONENT name var enb deps dis)
-    INCLUDE(CMakeDependentOption)
+MACRO(LIBUHD_REGISTER_COMPONENT name var enb deps dis)
     MESSAGE(STATUS "")
     MESSAGE(STATUS "Configuring ${name} support...")
-    IF(DEFINED ${var})
-        MESSAGE(STATUS "${name} support configured ${var}=${${var}}")
-    ELSE(DEFINED ${var}) #not defined: automatic enabling of component
-        MESSAGE(STATUS "${name} support configured automatically")
-    ENDIF(DEFINED ${var})
+    FOREACH(dep ${deps})
+        MESSAGE(STATUS "  Dependency ${dep} = ${${dep}}")
+    ENDFOREACH(dep)
 
     #setup the dependent option for this component
+    INCLUDE(CMakeDependentOption)
     CMAKE_DEPENDENT_OPTION(${var} "enable ${name} support" ${enb} "${deps}" ${dis})
 
-    #remove previous occurrence of component in either list
-    IF(DEFINED _uhd_enabled_components)
-        LIST(REMOVE_ITEM _uhd_enabled_components ${name})
-    ENDIF(DEFINED _uhd_enabled_components)
-    IF(DEFINED _uhd_disabled_components)
-        LIST(REMOVE_ITEM _uhd_disabled_components ${name})
-    ENDIF(DEFINED _uhd_disabled_components)
-
     #append the component into one of the lists
     IF(${var})
         MESSAGE(STATUS "  Enabling ${name} support.")
@@ -56,11 +46,12 @@ FUNCTION(LIBUHD_REGISTER_COMPONENT name var enb deps dis)
         MESSAGE(STATUS "  Disabling ${name} support.")
         LIST(APPEND _uhd_disabled_components ${name})
     ENDIF(${var})
+    MESSAGE(STATUS "  Override with -D${var}=ON/OFF")
 
     #make components lists into global variables
     SET(_uhd_enabled_components ${_uhd_enabled_components} CACHE INTERNAL "" FORCE)
     SET(_uhd_disabled_components ${_uhd_disabled_components} CACHE INTERNAL "" FORCE)
-ENDFUNCTION(LIBUHD_REGISTER_COMPONENT)
+ENDMACRO(LIBUHD_REGISTER_COMPONENT)
 
 ########################################################################
 # Print the registered component summary
@@ -68,7 +59,7 @@ ENDFUNCTION(LIBUHD_REGISTER_COMPONENT)
 FUNCTION(UHD_PRINT_COMPONENT_SUMMARY)
     MESSAGE(STATUS "")
     MESSAGE(STATUS "######################################################")
-    MESSAGE(STATUS "# LibUHD enabled components                           ")
+    MESSAGE(STATUS "# UHD enabled components                              ")
     MESSAGE(STATUS "######################################################")
     FOREACH(comp ${_uhd_enabled_components})
         MESSAGE(STATUS "  * ${comp}")
@@ -76,7 +67,7 @@ FUNCTION(UHD_PRINT_COMPONENT_SUMMARY)
 
     MESSAGE(STATUS "")
     MESSAGE(STATUS "######################################################")
-    MESSAGE(STATUS "# LibUHD disabled components                          ")
+    MESSAGE(STATUS "# UHD disabled components                             ")
     MESSAGE(STATUS "######################################################")
     FOREACH(comp ${_uhd_disabled_components})
         MESSAGE(STATUS "  * ${comp}")
diff --git a/host/Modules/UHDVersion.cmake b/host/Modules/UHDVersion.cmake
index 4bd740185..c22286d59 100644
--- a/host/Modules/UHDVersion.cmake
+++ b/host/Modules/UHDVersion.cmake
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -21,7 +21,7 @@ INCLUDE(UHDPython) #requires python for parsing
 ########################################################################
 # Setup Version Numbers
 ########################################################################
-SET(UHD_VERSION_MAJOR 0001) #API compatibility number
+SET(UHD_VERSION_MAJOR 002)  #API compatibility number
 SET(UHD_VERSION_MINOR 0)    #Timestamp of git commit
 SET(UHD_VERSION_PATCH 0)    #Short hash of git commit
 
@@ -34,7 +34,7 @@ IF(GIT_FOUND)
     #grab the git log entry for the current head
     EXECUTE_PROCESS(
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
-        COMMAND ${GIT_EXECUTABLE} log HEAD~..HEAD --date=raw
+        COMMAND ${GIT_EXECUTABLE} log HEAD~..HEAD --date=raw -n1
         OUTPUT_VARIABLE _git_log OUTPUT_STRIP_TRAILING_WHITESPACE
     )
 
diff --git a/host/docs/CMakeLists.txt b/host/docs/CMakeLists.txt
index 592d66526..ace48f008 100644
--- a/host/docs/CMakeLists.txt
+++ b/host/docs/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -36,7 +36,7 @@ SET(manual_sources
 # Setup Manual
 ########################################################################
 MESSAGE(STATUS "")
-FIND_PACKAGE(Docutils REQUIRED)
+FIND_PACKAGE(Docutils)
 
 LIBUHD_REGISTER_COMPONENT("Manual" ENABLE_MANUAL ON "DOCUTILS_FOUND" OFF)
 
diff --git a/host/docs/transport.rst b/host/docs/transport.rst
index d9abd4923..018f909c1 100644
--- a/host/docs/transport.rst
+++ b/host/docs/transport.rst
@@ -36,7 +36,7 @@ The following parameters can be used to alter the transport's default behavior:
 * **num_send_frames:** The number of send buffers to allocate
 * **concurrency_hint:** The number of threads to run the IO service
 
-**Note:** num_send_frames and concurrency_hint will not have an effect
+**Note:** num_send_frames will not have an effect
 as the asynchronous send implementation is currently disabled.
 
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/host/docs/usrp1.rst b/host/docs/usrp1.rst
index 9038616a8..0a8224850 100644
--- a/host/docs/usrp1.rst
+++ b/host/docs/usrp1.rst
@@ -4,9 +4,9 @@ UHD - USRP1 Application Notes
 
 .. contents:: Table of Contents
 
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+------------------------------------------------------------------------
 Specify a non-standard image
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+------------------------------------------------------------------------
 The standard USRP1 images installer comes with two FPGA images:
  * **usrp1_fpga.rbf:** 2 DDCs + 2 DUCs
  * **usrp1_fpga_4rx.rbf:** 4 DDCs + 0 DUCs
@@ -66,7 +66,37 @@ Notice that the subdevice name is always specified in the 3 possible cases.
     B:B
 
 ------------------------------------------------------------------------
-OS Specific Notes
+Missing and emulated features
+------------------------------------------------------------------------
+The USRP1 FPGA does not have the necessary space to support the advanced
+streaming capabilities that are possible with the newer USRP devices.
+Some of these features are emulated in software to support the API.
+
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+List of emulated features
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+* Setting the current device time
+* Getting the current device time
+* Transmitting at a specific time
+* Receiving at a specific time
+* Receiving a specific number of samples
+* End of burst flags for transmit/receive
+
+**Note:**
+These emulated features rely on the host system's clock for timed operations,
+and therefore may not have sufficient precision for the application.
+
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+List of missing features
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+* Notification on late stream command
+* Notification on late transmit packet
+* Notification on broken chain error
+* Notification on underflow or overflow
+* Start of burst flags for transmit/receive
+
+------------------------------------------------------------------------
+OS specific notes
 ------------------------------------------------------------------------
 
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -90,13 +120,13 @@ On Windows, a driver must be installed the first time the USRP1 is attached to t
 A download link for this driver can be found on the UHD wiki page.
 Download and unpack the driver, and direct the Windows driver install wizard to the .inf file.
 
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-Hardware setup notes
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
 ------------------------------------------------------------------------
-External Clock Modification
+Hardware setup notes
 ------------------------------------------------------------------------
+
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+External clock modification
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 The USRP can be modified to accept an external clock reference instead of the 64MHz onboard reference.
  * Solder SMA (LTI-SASF54GT) connector to J2001
  * Move 0 ohm 0603 resistor R2029 to R2930
diff --git a/host/docs/usrp2.rst b/host/docs/usrp2.rst
index 8e5743102..3031a0075 100644
--- a/host/docs/usrp2.rst
+++ b/host/docs/usrp2.rst
@@ -101,7 +101,7 @@ On some systems, the firewall will block UDP broadcast packets.
 It is recommended that you change or disable your firewall settings.
 
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-Multiple device configuration
+Multiple devices per host
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 For maximum throughput, one ethernet interface per USRP2 is recommended,
 although multiple devices may be connected via a gigabit ethernet switch.
@@ -210,6 +210,66 @@ Example device address string representation for 2 USRP2s with IPv4 addresses 19
     addr0=192.168.10.2, addr1=192.168.20.2
 
 ------------------------------------------------------------------------
+Using the MIMO Cable
+------------------------------------------------------------------------
+The MIMO cable allows two USRP devices to share reference clocks,
+time synchronization, and the ethernet interface.
+
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Shared ethernet mode
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+In shared ethernet mode,
+only one device in the configuration can be attached to the ethernet.
+This device will be referred to as the master, and the other device, the slave.
+
+* The master provides reference clock and time synchronization to the slave.
+* All data passing between the host and the slave is routed over the MIMO cable.
+* Both master and slave must have different IPv4 addresses in the same subnet.
+* The master and slave may be used individually or in a multi-device configuration.
+* External clocking is optional, and should only be supplied to the master device.
+* The role of slave and master may be switched with the "mimo_mode" device address (see dual ethernet mode).
+
+Example device address string representation for 2 USRP2s with IPv4 addresses 192.168.10.2 (master) and 192.168.10.3 (slave)
+::
+
+    -- Multi-device example --
+
+    addr0=192.168.10.2, addr1=192.168.10.3
+
+    -- Two single devices example --
+
+    addr=192.168.10.2
+
+    addr=192.168.10.3
+
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Dual ethernet mode
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+In dual ethernet mode,
+both devices in the configuration must be attached to the ethernet.
+One of the devices in the configuration will be configured to provide synchronization.
+This device will be referred to as the master, and the other device, the slave.
+
+* The master provides reference clock and time synchronization to the slave.
+* The devices require the special device address argument "mimo_mode" set.
+* Both master and slave must have different IPv4 addresses in different subnets.
+* The master and slave may be used individually or in a multi-device configuration.
+* External clocking is optional, and should only be supplied to the master device.
+
+Example device address string representation for 2 USRP2s with IPv4 addresses 192.168.10.2 (master) and 192.168.20.2 (slave)
+::
+
+    -- Multi-device example --
+
+    addr0=192.168.10.2, mimo_mode0=master, addr1=192.168.20.2, mimo_mode1=slave
+
+    -- Two single devices example --
+
+    addr=192.168.10.2, mimo_mode=master
+
+    addr=192.168.20.2, mimo_mode=slave
+
+------------------------------------------------------------------------
 Hardware setup notes
 ------------------------------------------------------------------------
 
@@ -220,7 +280,7 @@ The LEDs on the front panel can be useful in debugging hardware and software iss
 The LEDs reveal the following about the state of the device:
 
 * **LED A:** transmitting
-* **LED B:** serdes link
+* **LED B:** mimo cable link
 * **LED C:** receiving
 * **LED D:** firmware loaded
 * **LED E:** reference lock
diff --git a/host/examples/rx_ascii_art_dft.cpp b/host/examples/rx_ascii_art_dft.cpp
index 5a24867b4..260feca24 100644
--- a/host/examples/rx_ascii_art_dft.cpp
+++ b/host/examples/rx_ascii_art_dft.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -34,8 +34,8 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //variables to be set by po
     std::string args;
     size_t num_bins;
-    double rate, freq, frame_rate;
-    float gain, ref_lvl, dyn_rng;
+    double rate, freq, gain, frame_rate;
+    float ref_lvl, dyn_rng;
 
     //setup the program options
     po::options_description desc("Allowed options");
@@ -45,7 +45,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         // hardware parameters
         ("rate", po::value<double>(&rate), "rate of incoming samples (sps)")
         ("freq", po::value<double>(&freq)->default_value(0), "RF center frequency in Hz")
-        ("gain", po::value<float>(&gain)->default_value(0), "gain for the RF chain")
+        ("gain", po::value<double>(&gain)->default_value(0), "gain for the RF chain")
         // display parameters
         ("num-bins", po::value<size_t>(&num_bins)->default_value(512), "the number of bins in the DFT")
         ("frame-rate", po::value<double>(&frame_rate)->default_value(5), "frame rate of the display (fps)")
diff --git a/host/examples/rx_samples_to_file.cpp b/host/examples/rx_samples_to_file.cpp
index c80d2a6de..81977035e 100644
--- a/host/examples/rx_samples_to_file.cpp
+++ b/host/examples/rx_samples_to_file.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -33,8 +33,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //variables to be set by po
     std::string args, file;
     size_t total_num_samps;
-    double rate, freq;
-    float gain;
+    double rate, freq, gain;
 
     //setup the program options
     po::options_description desc("Allowed options");
@@ -45,7 +44,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to receive")
         ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of incoming samples")
         ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
-        ("gain", po::value<float>(&gain)->default_value(0), "gain for the RF chain")
+        ("gain", po::value<double>(&gain)->default_value(0), "gain for the RF chain")
     ;
     po::variables_map vm;
     po::store(po::parse_command_line(argc, argv, desc), vm);
diff --git a/host/examples/rx_samples_to_udp.cpp b/host/examples/rx_samples_to_udp.cpp
index 488c95494..55b9a50ba 100644
--- a/host/examples/rx_samples_to_udp.cpp
+++ b/host/examples/rx_samples_to_udp.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -33,8 +33,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //variables to be set by po
     std::string args;
     size_t total_num_samps;
-    double rate, freq;
-    float gain;
+    double rate, freq, gain;
     std::string addr, port;
 
     //setup the program options
@@ -45,7 +44,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to receive")
         ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of incoming samples")
         ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
-        ("gain", po::value<float>(&gain)->default_value(0), "gain for the RF chain")
+        ("gain", po::value<double>(&gain)->default_value(0), "gain for the RF chain")
         ("port", po::value<std::string>(&port)->default_value("7124"), "server udp port")
         ("addr", po::value<std::string>(&addr)->default_value("192.168.1.10"), "resolvable server address")
     ;
diff --git a/host/examples/rx_timed_samples.cpp b/host/examples/rx_timed_samples.cpp
index 8a810811f..a19532f50 100644
--- a/host/examples/rx_timed_samples.cpp
+++ b/host/examples/rx_timed_samples.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -30,7 +30,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     //variables to be set by po
     std::string args;
-    time_t seconds_in_future;
+    double seconds_in_future;
     size_t total_num_samps;
     double rate, freq;
 
@@ -39,7 +39,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     desc.add_options()
         ("help", "help message")
         ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
-        ("secs", po::value<time_t>(&seconds_in_future)->default_value(3), "number of seconds in the future to receive")
+        ("secs", po::value<double>(&seconds_in_future)->default_value(3), "number of seconds in the future to receive")
         ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to receive")
         ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of incoming samples")
         ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
@@ -80,7 +80,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //setup streaming
     std::cout << std::endl;
     std::cout << boost::format(
-        "Begin streaming %u samples, %d seconds in the future..."
+        "Begin streaming %u samples, %f seconds in the future..."
     ) % total_num_samps % seconds_in_future << std::endl;
     uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
     stream_cmd.num_samps = total_num_samps;
diff --git a/host/examples/test_pps_input.cpp b/host/examples/test_pps_input.cpp
index 4b2bb62a3..273c73df0 100644
--- a/host/examples/test_pps_input.cpp
+++ b/host/examples/test_pps_input.cpp
@@ -17,7 +17,7 @@
 
 #include <uhd/utils/thread_priority.hpp>
 #include <uhd/utils/safe_main.hpp>
-#include <uhd/usrp/single_usrp.hpp>
+#include <uhd/usrp/multi_usrp.hpp>
 #include <boost/program_options.hpp>
 #include <boost/format.hpp>
 #include <boost/thread.hpp>
@@ -31,7 +31,6 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     //variables to be set by po
     std::string args;
-    double seconds;
 
     //setup the program options
     po::options_description desc("Allowed options");
@@ -52,35 +51,13 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //create a usrp device
     std::cout << std::endl;
     std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
-    uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+    uhd::usrp::multi_usrp::sptr sdev = uhd::usrp::multi_usrp::make(args);
     uhd::device::sptr dev = sdev->get_device();
     std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
 
-    //set a known time value
-    std::cout << "Set time to known value (100.0) without regard to pps:" << std::endl;
-    sdev->set_time_now(uhd::time_spec_t(100.0));
-    boost::this_thread::sleep(boost::posix_time::seconds(1));
-    std::cout << boost::format("Reading time 1 second later: %f\n") % (sdev->get_time_now().get_real_secs()) << std::endl;
-
-    //store the time to see if PPS resets it
-    seconds = sdev->get_time_now().get_real_secs();
-
-    //set a known time at next PPS, check that time increments
-    uhd::time_spec_t time_spec = uhd::time_spec_t(0.0);
-    std::cout << "Set time to known value (0.0) at next pps:" << std::endl;
-    sdev->set_time_next_pps(time_spec);
-    boost::this_thread::sleep(boost::posix_time::seconds(1));
-    std::cout << boost::format("Reading time 1 second later: %f\n") % (sdev->get_time_now().get_real_secs()) << std::endl;
-
-    //finished
-    if (seconds > sdev->get_time_now().get_real_secs()){
-        std::cout << std::endl << "Success!" << std::endl << std::endl;
-        return 0;
-    } else {
-        std::cout << std::endl << "Failed!" << std::endl << std::endl 
-            << "If you expected PPS to work:" << std::endl
-            << "\tsee Device App Notes for PPS level information"
-            << std::endl << std::endl;
-        return -1;
-    }
+    //set the time at an unknown pps (will throw if no pps)
+    std::cout << std::endl << "Attempt to detect the PPS and set the time..." << std::endl << std::endl;
+    sdev->set_time_unknown_pps(uhd::time_spec_t(0.0));
+    std::cout << std::endl << "Success!" << std::endl << std::endl;
+    return 0;
 }
diff --git a/host/examples/tx_from_file.cpp b/host/examples/tx_from_file.cpp
index 9611cf47c..8af9b0f4a 100644
--- a/host/examples/tx_from_file.cpp
+++ b/host/examples/tx_from_file.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -31,24 +31,23 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     //variables to be set by po
     std::string args;
-    time_t seconds_in_future;
+    double seconds_in_future;
     size_t total_num_samps;
     size_t samps_per_packet;
-    double tx_rate, freq;
+    double tx_rate, freq, gain;
     float ampl;
-    float tx_gain;
 
     //setup the program options
     po::options_description desc("Allowed options");
     desc.add_options()
         ("help", "help message")
         ("args", po::value<std::string>(&args)->default_value(""), "simple uhd device address args")
-        ("secs", po::value<time_t>(&seconds_in_future)->default_value(3), "number of seconds in the future to transmit")
+        ("secs", po::value<double>(&seconds_in_future)->default_value(3), "number of seconds in the future to transmit")
         ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to transmit")
         ("txrate", po::value<double>(&tx_rate)->default_value(100e6/16), "rate of outgoing samples")
         ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
         ("ampl", po::value<float>(&ampl)->default_value(float(0.3)), "amplitude of each sample")
-        ("gain", po::value<float>(&tx_gain)->default_value(float(0)), "amplitude of each sample")
+        ("gain", po::value<double>(&gain)->default_value(0), "amplitude of each sample")
         ("dilv", "specify to disable inner-loop verbose")
     ;
     po::variables_map vm;
@@ -78,7 +77,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     sdev->set_tx_freq(freq);
     sdev->set_time_now(uhd::time_spec_t(0.0));
 
-    sdev->set_tx_gain(tx_gain);
+    sdev->set_gain(gain);
 
     //allocate data to send
     std::vector<std::complex<short> > buff;
@@ -102,7 +101,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     size_t num_packets = (total_num_samps+samps_per_packet-1)/samps_per_packet;
     for (size_t i = 0; i < num_packets; i++){
         //setup the metadata flags and time spec
-        md.start_of_burst = true;                  //always SOB (good for continuous streaming)
+        md.start_of_burst = (i == 0);              //only first packet has SOB
         md.end_of_burst   = (i == num_packets-1);  //only last packet has EOB
         md.has_time_spec  = (i == 0);              //only first packet has time
         md.time_spec = uhd::time_spec_t(seconds_in_future);
diff --git a/host/examples/tx_timed_samples.cpp b/host/examples/tx_timed_samples.cpp
index 799da37e0..6d6aa7010 100644
--- a/host/examples/tx_timed_samples.cpp
+++ b/host/examples/tx_timed_samples.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -30,7 +30,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     //variables to be set by po
     std::string args;
-    time_t seconds_in_future;
+    double seconds_in_future;
     size_t total_num_samps;
     size_t samps_per_packet;
     double rate, freq;
@@ -41,7 +41,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     desc.add_options()
         ("help", "help message")
         ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
-        ("secs", po::value<time_t>(&seconds_in_future)->default_value(3), "number of seconds in the future to transmit")
+        ("secs", po::value<double>(&seconds_in_future)->default_value(3), "number of seconds in the future to transmit")
         ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to transmit")
         ("spp", po::value<size_t>(&samps_per_packet)->default_value(1000), "number of samples per packet")
         ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of outgoing samples")
@@ -84,15 +84,17 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //allocate data to send
     std::vector<std::complex<float> > buff(samps_per_packet, std::complex<float>(ampl, ampl));
 
+    uhd::tx_metadata_t md;
+    md.time_spec = uhd::time_spec_t(seconds_in_future);
+
     //send the data in multiple packets
     size_t num_packets = (total_num_samps+samps_per_packet-1)/samps_per_packet;
     for (size_t i = 0; i < num_packets; i++){
-        //setup the metadata flags and time spec
-        uhd::tx_metadata_t md;
-        md.start_of_burst = true;                  //always SOB (good for continuous streaming)
+
+        //setup the metadata flags per fragment
+        md.start_of_burst = (i == 0);              //only first packet has SOB
         md.end_of_burst   = (i == num_packets-1);  //only last packet has EOB
         md.has_time_spec  = (i == 0);              //only first packet has time
-        md.time_spec = uhd::time_spec_t(seconds_in_future);
 
         size_t samps_to_send = std::min(total_num_samps - samps_per_packet*i, samps_per_packet);
 
diff --git a/host/examples/tx_waveforms.cpp b/host/examples/tx_waveforms.cpp
index 50982cf88..7cc1f5ae0 100644
--- a/host/examples/tx_waveforms.cpp
+++ b/host/examples/tx_waveforms.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -63,8 +63,8 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //variables to be set by po
     std::string args, wave_type;
     size_t total_duration, spb;
-    double rate, freq, wave_freq;
-    float ampl, gain;
+    double rate, freq, gain, wave_freq;
+    float ampl;
 
     //setup the program options
     po::options_description desc("Allowed options");
@@ -76,7 +76,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         ("rate", po::value<double>(&rate)->default_value(1.5e6), "rate of outgoing samples")
         ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
         ("ampl", po::value<float>(&ampl)->default_value(float(0.3)), "amplitude of the waveform")
-        ("gain", po::value<float>(&gain)->default_value(float(0)), "gain for the RF chain")
+        ("gain", po::value<double>(&gain)->default_value(0), "gain for the RF chain")
         ("wave-type", po::value<std::string>(&wave_type)->default_value("CONST"), "waveform type (CONST, SQUARE, RAMP, SINE)")
         ("wave-freq", po::value<double>(&wave_freq)->default_value(0), "waveform frequency in Hz")
     ;
@@ -142,7 +142,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     //setup the metadata flags
     uhd::tx_metadata_t md;
-    md.start_of_burst = true; //always SOB (good for continuous streaming)
+    md.start_of_burst = false; //never SOB when continuous
     md.end_of_burst   = false;
 
     //send the data in multiple packets
diff --git a/host/include/uhd/CMakeLists.txt b/host/include/uhd/CMakeLists.txt
index ad528c9fb..fee1270e9 100644
--- a/host/include/uhd/CMakeLists.txt
+++ b/host/include/uhd/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -23,6 +23,7 @@ ADD_SUBDIRECTORY(utils)
 
 INSTALL(FILES
     config.hpp
+    convert.hpp
     device.hpp
     device.ipp
     version.hpp
diff --git a/host/include/uhd/config.hpp b/host/include/uhd/config.hpp
index 9a29fb246..912fbc204 100644
--- a/host/include/uhd/config.hpp
+++ b/host/include/uhd/config.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -18,9 +18,10 @@
 #ifndef INCLUDED_UHD_CONFIG_HPP
 #define INCLUDED_UHD_CONFIG_HPP
 
-// suppress warnings
 #include <boost/config.hpp>
+
 #ifdef BOOST_MSVC
+// suppress warnings
 //# pragma warning(push)
 //# pragma warning(disable: 4511) // copy constructor can't not be generated
 //# pragma warning(disable: 4512) // assignment operator can't not be generated
@@ -37,76 +38,43 @@
 //# pragma warning(disable: 4511) // 'class' : copy constructor could not be generated
 //# pragma warning(disable: 4250) // 'class' : inherits 'method' via dominance
 # pragma warning(disable: 4200) // nonstandard extension used : zero-sized array in struct/union
-#endif
 
 // define logical operators
-#ifdef BOOST_MSVC
-    #include <ciso646>
-#endif
+#include <ciso646>
 
 // define ssize_t
-#ifdef BOOST_MSVC
-    #include <cstddef>
-    typedef ptrdiff_t ssize_t;
-#endif
-
-// http://gcc.gnu.org/wiki/Visibility
-// Generic helper definitions for shared library support
-#if defined(BOOST_HAS_DECLSPEC)
-    #define UHD_HELPER_DLL_IMPORT __declspec(dllimport)
-    #define UHD_HELPER_DLL_EXPORT __declspec(dllexport)
-    #define UHD_HELPER_DLL_LOCAL
-    #define UHD_HELPER_EXIM_TMPL
-#elif defined(__GNUG__) && __GNUG__ >= 4
-    #define UHD_HELPER_DLL_IMPORT __attribute__ ((visibility("default")))
-    #define UHD_HELPER_DLL_EXPORT __attribute__ ((visibility("default")))
-    #define UHD_HELPER_DLL_LOCAL  __attribute__ ((visibility("hidden")))
-    #define UHD_HELPER_EXIM_TMPL extern
-#else
-    #define UHD_HELPER_DLL_IMPORT
-    #define UHD_HELPER_DLL_EXPORT
-    #define UHD_HELPER_DLL_LOCAL
-    #define UHD_HELPER_EXIM_TMPL extern
-#endif
-
-// Now we use the generic helper definitions above to define UHD_API and UHD_LOCAL.
-// UHD_API is used for the public API symbols. It either DLL imports or DLL exports (or does nothing for static build)
-// UHD_LOCAL is used for non-api symbols.
-
-#define UHD_DLL // defined here, put into configuration if we need to make static libs
+#include <cstddef>
+typedef ptrdiff_t ssize_t;
 
-#ifdef UHD_DLL // defined if UHD is compiled as a DLL
-    #ifdef UHD_DLL_EXPORTS // defined if we are building the UHD DLL (instead of using it)
-        #define UHD_API UHD_HELPER_DLL_EXPORT
-        #define UHD_EXIM_TMPL UHD_HELPER_EXIM_TMPL
-    #else
-        #define UHD_API UHD_HELPER_DLL_IMPORT
-        #define UHD_EXIM_TMPL UHD_HELPER_EXIM_TMPL
-    #endif // UHD_DLL_EXPORTS
-    #define UHD_LOCAL UHD_HELPER_DLL_LOCAL
-#else // UHD_DLL is not defined: this means UHD is a static lib.
-    #define UHD_API
-    #define UHD_LOCAL
-    #define UHD_EXIM_TMPL
-#endif // UHD_DLL
+#endif //BOOST_MSVC
 
-// Define force inline macro
-#if defined(BOOST_MSVC)
-    #define UHD_INLINE __forceinline
+//define cross platform attribute macros
+#if defined(BOOST_MSVC) || defined(BOOST_HAS_DECLSPEC)
+    #define UHD_EXPORT         __declspec(dllexport)
+    #define UHD_IMPORT         __declspec(dllimport)
+    #define UHD_INLINE         __forceinline
+    #define UHD_DEPRECATED     __declspec(deprecated)
+    #define UHD_ALIGNED(x)     __declspec(align(x))
 #elif defined(__GNUG__) && __GNUG__ >= 4
-    #define UHD_INLINE inline __attribute__((always_inline))
+    #define UHD_EXPORT         __attribute__((visibility("default")))
+    #define UHD_IMPORT         __attribute__((visibility("default")))
+    #define UHD_INLINE         inline __attribute__((always_inline))
+    #define UHD_DEPRECATED     __attribute__((deprecated))
+    #define UHD_ALIGNED(x)     __attribute__((aligned(x)))
 #else
-    #define UHD_INLINE inline
+    #define UHD_EXPORT
+    #define UHD_IMPORT
+    #define UHD_INLINE         inline
+    #define UHD_DEPRECATED
+    #define UHD_ALIGNED(x)
 #endif
 
-// Define deprecated attribute macro
-#if defined(BOOST_MSVC)
-    #define UHD_DEPRECATED __declspec(deprecated)
-#elif defined(__GNUG__) && __GNUG__ >= 4
-    #define UHD_DEPRECATED __attribute__ ((deprecated))
+// Define API declaration macro
+#ifdef UHD_DLL_EXPORTS
+    #define UHD_API UHD_EXPORT
 #else
-    #define UHD_DEPRECATED
-#endif
+    #define UHD_API UHD_IMPORT
+#endif // UHD_DLL_EXPORTS
 
 // Platform defines for conditional parts of headers:
 // Taken from boost/config/select_platform_config.hpp,
@@ -117,6 +85,8 @@
     #define UHD_PLATFORM_WIN32
 #elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)
     #define UHD_PLATFORM_MACOS
+#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+    #define UHD_PLATFORM_BSD
 #endif
 
 #endif /* INCLUDED_UHD_CONFIG_HPP */
diff --git a/host/include/uhd/convert.hpp b/host/include/uhd/convert.hpp
new file mode 100644
index 000000000..bfe8c8267
--- /dev/null
+++ b/host/include/uhd/convert.hpp
@@ -0,0 +1,90 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#ifndef INCLUDED_UHD_CONVERT_HPP
+#define INCLUDED_UHD_CONVERT_HPP
+
+#include <uhd/config.hpp>
+#include <uhd/types/io_type.hpp>
+#include <uhd/types/otw_type.hpp>
+#include <boost/function.hpp>
+#include <string>
+#include <vector>
+
+namespace uhd{ namespace convert{
+
+    typedef std::vector<void *> output_type;
+    typedef std::vector<const void *> input_type;
+    typedef boost::function<void(input_type&, output_type&, size_t)> function_type;
+
+    /*!
+     * Describe the priority of a converter function.
+     * A higher priority function takes precedence.
+     * The general case function are the lowest.
+     * Next comes the liborc implementations.
+     * Custom intrinsics implementations are highest.
+     */
+    enum priority_type{
+        PRIORITY_GENERAL = 0,
+        PRIORITY_LIBORC = 1,
+        PRIORITY_CUSTOM = 2,
+        PRIORITY_EMPTY = -1,
+    };
+
+    /*!
+     * Register a converter function that converts cpu type to/from otw type.
+     * \param markup representing the signature
+     * \param fcn a pointer to the converter
+     * \param prio the function priority
+     */
+    UHD_API void register_converter(
+        const std::string &markup,
+        function_type fcn,
+        priority_type prio
+    );
+
+    /*!
+     * Get a converter function that converts cpu to otw.
+     * \param io_type the type of the input samples
+     * \param otw_type the type of the output samples
+     * \param num_input_buffs the number of inputs
+     * \param num_output_buffs the number of outputs
+     */
+    UHD_API const function_type &get_converter_cpu_to_otw(
+        const io_type_t &io_type,
+        const otw_type_t &otw_type,
+        size_t num_input_buffs,
+        size_t num_output_buffs
+    );
+
+    /*!
+     * Get a converter function that converts otw to cpu.
+     * \param io_type the type of the input samples
+     * \param otw_type the type of the output samples
+     * \param num_input_buffs the number of inputs
+     * \param num_output_buffs the number of outputs
+     */
+    UHD_API const function_type &get_converter_otw_to_cpu(
+        const io_type_t &io_type,
+        const otw_type_t &otw_type,
+        size_t num_input_buffs,
+        size_t num_output_buffs
+    );
+
+}} //namespace
+
+#endif /* INCLUDED_UHD_CONVERT_HPP */
diff --git a/host/include/uhd/transport/CMakeLists.txt b/host/include/uhd/transport/CMakeLists.txt
index 2c84c0724..14ca82226 100644
--- a/host/include/uhd/transport/CMakeLists.txt
+++ b/host/include/uhd/transport/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -17,12 +17,9 @@
 
 
 INSTALL(FILES
-    alignment_buffer.hpp
-    alignment_buffer.ipp
     bounded_buffer.hpp
     bounded_buffer.ipp
-    convert_types.hpp
-    convert_types.ipp
+    buffer_pool.hpp
     if_addrs.hpp
     udp_simple.hpp
     udp_zero_copy.hpp
diff --git a/host/include/uhd/transport/alignment_buffer.hpp b/host/include/uhd/transport/alignment_buffer.hpp
deleted file mode 100644
index f44a037f8..000000000
--- a/host/include/uhd/transport/alignment_buffer.hpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright 2010 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-
-#ifndef INCLUDED_UHD_TRANSPORT_ALIGNMENT_BUFFER_HPP
-#define INCLUDED_UHD_TRANSPORT_ALIGNMENT_BUFFER_HPP
-
-#include <uhd/config.hpp>
-#include <uhd/transport/bounded_buffer.hpp> //time_duration_t
-#include <boost/shared_ptr.hpp>
-#include <vector>
-
-namespace uhd{ namespace transport{
-
-    /*!
-     * Implement a templated alignment buffer:
-     * Used for aligning asynchronously pushed elements with matching ids.
-     */
-    template <typename elem_type, typename seq_type> class alignment_buffer{
-    public:
-        typedef boost::shared_ptr<alignment_buffer<elem_type, seq_type> > sptr;
-
-        /*!
-         * Make a new alignment buffer object.
-         * \param capacity the maximum elements per index
-         * \param width the number of elements to align
-         */
-        static sptr make(size_t capacity, size_t width);
-
-        /*!
-         * Push an element with sequence id into the buffer at index.
-         * \param elem the element to push
-         * \param seq the sequence identifier
-         * \param index the buffer index
-         * \return true if the element fit without popping for space
-         */
-        virtual bool push_with_pop_on_full(
-            const elem_type &elem, const seq_type &seq, size_t index
-        ) = 0;
-
-        /*!
-         * Pop an aligned set of elements from this alignment buffer.
-         * \param elems a collection to store the aligned elements
-         * \param timeout the timeout in seconds
-         * \return false when the operation times out
-         */
-        virtual bool pop_elems_with_timed_wait(
-            std::vector<elem_type> &elems, double timeout
-        ) = 0;
-    };
-
-}} //namespace
-
-#include <uhd/transport/alignment_buffer.ipp>
-
-#endif /* INCLUDED_UHD_TRANSPORT_ALIGNMENT_BUFFER_HPP */
diff --git a/host/include/uhd/transport/alignment_buffer.ipp b/host/include/uhd/transport/alignment_buffer.ipp
deleted file mode 100644
index 833b5d399..000000000
--- a/host/include/uhd/transport/alignment_buffer.ipp
+++ /dev/null
@@ -1,144 +0,0 @@
-//
-// Copyright 2010 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-
-#ifndef INCLUDED_UHD_TRANSPORT_ALIGNMENT_BUFFER_IPP
-#define INCLUDED_UHD_TRANSPORT_ALIGNMENT_BUFFER_IPP
-
-#include <uhd/transport/bounded_buffer.hpp>
-#include <boost/thread/condition_variable.hpp>
-#include <utility>
-
-namespace uhd{ namespace transport{ namespace{ /*anon*/
-
-    /*!
-     * Imlement a templated alignment buffer:
-     * Used for aligning asynchronously pushed elements with matching ids.
-     */
-    template <typename elem_type, typename seq_type>
-    class alignment_buffer_impl : public alignment_buffer<elem_type, seq_type>{
-    public:
-
-        alignment_buffer_impl(size_t capacity, size_t width) : _last_seqs(width){
-            for (size_t i = 0; i < width; i++){
-                _buffs.push_back(bounded_buffer<buff_contents_type>::make(capacity));
-                _all_indexes.push_back(i);
-            }
-            _there_was_a_clear = false;
-        }
-
-        UHD_INLINE bool push_with_pop_on_full(
-            const elem_type &elem, const seq_type &seq, size_t index
-        ){
-            //clear the buffer for this index if the seqs are mis-ordered
-            if (seq < _last_seqs[index]){
-                _buffs[index]->clear();
-                _there_was_a_clear = true;
-            } _last_seqs[index] = seq;
-            return _buffs[index]->push_with_pop_on_full(buff_contents_type(elem, seq));
-        }
-
-        UHD_INLINE bool pop_elems_with_timed_wait(
-            std::vector<elem_type> &elems, double timeout
-        ){
-            boost::system_time exit_time = boost::get_system_time() + to_time_dur(timeout);
-            buff_contents_type buff_contents_tmp;
-            std::list<size_t> indexes_to_do(_all_indexes);
-
-            //do an initial pop to load an initial sequence id
-            size_t index = indexes_to_do.front();
-            if (not _buffs[index]->pop_with_timed_wait(
-                buff_contents_tmp, from_time_dur(exit_time - boost::get_system_time())
-            )) return false;
-            elems[index] = buff_contents_tmp.first;
-            seq_type expected_seq_id = buff_contents_tmp.second;
-            indexes_to_do.pop_front();
-
-            //get an aligned set of elements from the buffers:
-            while(indexes_to_do.size() != 0){
-
-                //respond to a clear by starting from scratch
-                if(_there_was_a_clear){
-                    _there_was_a_clear = false;
-                    indexes_to_do = _all_indexes;
-                    index = indexes_to_do.front();
-                    if (not _buffs[index]->pop_with_timed_wait(
-                        buff_contents_tmp, from_time_dur(exit_time - boost::get_system_time())
-                    )) return false;
-                    elems[index] = buff_contents_tmp.first;
-                    expected_seq_id = buff_contents_tmp.second;
-                    indexes_to_do.pop_front();
-                }
-
-                //pop an element off for this index
-                index = indexes_to_do.front();
-                if (not _buffs[index]->pop_with_timed_wait(
-                    buff_contents_tmp, from_time_dur(exit_time - boost::get_system_time())
-                )) return false;
-
-                //if the sequence id matches:
-                //  store the popped element into the output,
-                //  remove this index from the list and continue
-                if (buff_contents_tmp.second == expected_seq_id){
-                    elems[index] = buff_contents_tmp.first;
-                    indexes_to_do.pop_front();
-                    continue;
-                }
-
-                //if the sequence id is older:
-                //  continue with the same index to try again
-                if (buff_contents_tmp.second < expected_seq_id){
-                    continue;
-                }
-
-                //if the sequence id is newer:
-                //  store the popped element into the output,
-                //  add all other indexes back into the list
-                if (buff_contents_tmp.second > expected_seq_id){
-                    elems[index] = buff_contents_tmp.first;
-                    expected_seq_id = buff_contents_tmp.second;
-                    indexes_to_do = _all_indexes;
-                    indexes_to_do.remove(index);
-                    continue;
-                }
-            }
-            return true;
-        }
-
-    private:
-        //a vector of bounded buffers for each index
-        typedef std::pair<elem_type, seq_type> buff_contents_type;
-        std::vector<typename bounded_buffer<buff_contents_type>::sptr> _buffs;
-        std::vector<seq_type> _last_seqs;
-        std::list<size_t> _all_indexes;
-        bool _there_was_a_clear;
-    };
-
-}}} //namespace
-
-namespace uhd{ namespace transport{
-
-    template <typename elem_type, typename seq_type>
-    typename alignment_buffer<elem_type, seq_type>::sptr
-    alignment_buffer<elem_type, seq_type>::make(size_t capacity, size_t width){
-        return typename alignment_buffer<elem_type, seq_type>::sptr(
-            new alignment_buffer_impl<elem_type, seq_type>(capacity, width)
-        );
-    }
-
-}} //namespace
-
-#endif /* INCLUDED_UHD_TRANSPORT_ALIGNMENT_BUFFER_IPP */
diff --git a/host/include/uhd/transport/bounded_buffer.ipp b/host/include/uhd/transport/bounded_buffer.ipp
index edc7faa06..f7915d866 100644
--- a/host/include/uhd/transport/bounded_buffer.ipp
+++ b/host/include/uhd/transport/bounded_buffer.ipp
@@ -26,14 +26,6 @@
 
 namespace uhd{ namespace transport{ namespace{ /*anon*/
 
-    static UHD_INLINE boost::posix_time::time_duration to_time_dur(double timeout){
-        return boost::posix_time::microseconds(long(timeout*1e6));
-    }
-
-    static UHD_INLINE double from_time_dur(const boost::posix_time::time_duration &time_dur){
-        return 1e-6*time_dur.total_microseconds();
-    }
-
     template <typename elem_type>
     class bounded_buffer_impl : public bounded_buffer<elem_type>{
     public:
@@ -127,6 +119,11 @@ namespace uhd{ namespace transport{ namespace{ /*anon*/
             _buffer.pop_back();
             return elem;
         }
+
+        static UHD_INLINE boost::posix_time::time_duration to_time_dur(double timeout){
+            return boost::posix_time::microseconds(long(timeout*1e6));
+        }
+
     };
 }}} //namespace
 
diff --git a/host/include/uhd/transport/buffer_pool.hpp b/host/include/uhd/transport/buffer_pool.hpp
new file mode 100644
index 000000000..84a338097
--- /dev/null
+++ b/host/include/uhd/transport/buffer_pool.hpp
@@ -0,0 +1,59 @@
+//
+// Copyright 2011-2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#ifndef INCLUDED_UHD_TRANSPORT_BUFFER_POOL_HPP
+#define INCLUDED_UHD_TRANSPORT_BUFFER_POOL_HPP
+
+#include <uhd/config.hpp>
+#include <boost/utility.hpp>
+#include <boost/shared_ptr.hpp>
+
+namespace uhd{ namespace transport{
+
+    /*!
+     * A buffer pool manages memory for a homogeneous set of buffers.
+     * Each buffer is the pool start at a 16-byte alignment boundary.
+     */
+    class UHD_API buffer_pool : boost::noncopyable{
+    public:
+        typedef boost::shared_ptr<buffer_pool> sptr;
+        typedef void * ptr_type;
+
+        /*!
+         * Make a new buffer pool.
+         * \param num_buffs the number of buffers to allocate
+         * \param buff_size the size of each buffer in bytes
+         * \param alignment the alignment boundary in bytes
+         * \return a new buffer pool buff_size X num_buffs
+         */
+        static sptr make(
+            const size_t num_buffs,
+            const size_t buff_size,
+            const size_t alignment = 16
+        );
+
+        //! Get a pointer to the buffer start at the specified index
+        virtual ptr_type at(const size_t index) const = 0;
+
+        //! Get the number of buffers in this pool
+        virtual size_t size(void) const = 0;
+    };
+
+}} //namespace
+
+
+#endif /* INCLUDED_UHD_TRANSPORT_BUFFER_POOL_HPP */
diff --git a/host/include/uhd/transport/convert_types.hpp b/host/include/uhd/transport/convert_types.hpp
deleted file mode 100644
index dc7fa6c1a..000000000
--- a/host/include/uhd/transport/convert_types.hpp
+++ /dev/null
@@ -1,96 +0,0 @@
-//
-// Copyright 2010 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-
-#ifndef INCLUDED_UHD_TRANSPORT_CONVERT_TYPES_HPP
-#define INCLUDED_UHD_TRANSPORT_CONVERT_TYPES_HPP
-
-#include <uhd/config.hpp>
-#include <uhd/types/io_type.hpp>
-#include <uhd/types/otw_type.hpp>
-#include <vector>
-
-namespace uhd{ namespace transport{
-
-/*!
- * Convert IO samples to OWT samples.
- *
- * \param io_buff memory containing samples
- * \param io_type the type of these samples
- * \param otw_buff memory to write converted samples
- * \param otw_type the type of these samples
- * \param num_samps the number of samples in io_buff
- */
-UHD_API void convert_io_type_to_otw_type(
-    const void *io_buff, const io_type_t &io_type,
-    void *otw_buff, const otw_type_t &otw_type,
-    size_t num_samps
-);
-
-/*!
- * Convert IO samples to OWT samples + interleave.
- *
- * \param io_buffs buffers containing samples
- * \param io_type the type of these samples
- * \param otw_buff memory to write converted samples
- * \param otw_type the type of these samples
- * \param nsamps_per_io_buff samples per io_buff
- */
-UHD_API void convert_io_type_to_otw_type(
-    const std::vector<const void *> &io_buffs,
-    const io_type_t &io_type,
-    void *otw_buff,
-    const otw_type_t &otw_type,
-    size_t nsamps_per_io_buff
-);
-
-/*!
- * Convert OTW samples to IO samples.
- *
- * \param otw_buff memory containing samples
- * \param otw_type the type of these samples
- * \param io_buff memory to write converted samples
- * \param io_type the type of these samples
- * \param num_samps the number of samples in io_buff
- */
-UHD_API void convert_otw_type_to_io_type(
-    const void *otw_buff, const otw_type_t &otw_type,
-    void *io_buff, const io_type_t &io_type,
-    size_t num_samps
-);
-
-/*!
- * Convert OTW samples to IO samples + de-interleave.
- *
- * \param otw_buff memory containing samples
- * \param otw_type the type of these samples
- * \param io_buffs buffers to write converted samples
- * \param io_type the type of these samples
- * \param nsamps_per_io_buff samples per io_buff
- */
-UHD_API void convert_otw_type_to_io_type(
-    const void *otw_buff,
-    const otw_type_t &otw_type,
-    std::vector<void *> &io_buffs,
-    const io_type_t &io_type,
-    size_t nsamps_per_io_buff
-);
-
-}} //namespace
-
-#include <uhd/transport/convert_types.ipp>
-
-#endif /* INCLUDED_UHD_TRANSPORT_CONVERT_TYPES_HPP */
diff --git a/host/include/uhd/transport/convert_types.ipp b/host/include/uhd/transport/convert_types.ipp
deleted file mode 100644
index 914ca6f17..000000000
--- a/host/include/uhd/transport/convert_types.ipp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright 2010 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-
-#ifndef INCLUDED_UHD_TRANSPORT_CONVERT_TYPES_IPP
-#define INCLUDED_UHD_TRANSPORT_CONVERT_TYPES_IPP
-
-UHD_INLINE void uhd::transport::convert_io_type_to_otw_type(
-    const void *io_buff, const io_type_t &io_type,
-    void *otw_buff, const otw_type_t &otw_type,
-    size_t num_samps
-){
-    std::vector<const void *> buffs(1, io_buff);
-    return uhd::transport::convert_io_type_to_otw_type(
-        buffs, io_type, otw_buff, otw_type, num_samps
-    );
-}
-
-UHD_INLINE void uhd::transport::convert_otw_type_to_io_type(
-    const void *otw_buff, const otw_type_t &otw_type,
-    void *io_buff, const io_type_t &io_type,
-    size_t num_samps
-){
-    std::vector<void *> buffs(1, io_buff);
-    return uhd::transport::convert_otw_type_to_io_type(
-        otw_buff, otw_type, buffs, io_type, num_samps
-    );
-}
-
-#endif /* INCLUDED_UHD_TRANSPORT_CONVERT_TYPES_IPP */
diff --git a/host/include/uhd/transport/if_addrs.hpp b/host/include/uhd/transport/if_addrs.hpp
index fbbb35e1d..c831750d7 100644
--- a/host/include/uhd/transport/if_addrs.hpp
+++ b/host/include/uhd/transport/if_addrs.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,8 +15,8 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //
 
-#ifndef INCLUDED_UHD_IFADDRS_HPP
-#define INCLUDED_UHD_IFADDRS_HPP
+#ifndef INCLUDED_UHD_TRANSPORT_IF_ADDRS_HPP
+#define INCLUDED_UHD_TRANSPORT_IF_ADDRS_HPP
 
 #include <uhd/config.hpp>
 #include <string>
@@ -44,4 +44,4 @@ namespace uhd{ namespace transport{
 }} //namespace
 
 
-#endif /* INCLUDED_UHD_IFADDRS_HPP */
+#endif /* INCLUDED_UHD_TRANSPORT_IF_ADDRS_HPP */
diff --git a/host/include/uhd/types/CMakeLists.txt b/host/include/uhd/types/CMakeLists.txt
index 1d2c0c41c..51be164aa 100644
--- a/host/include/uhd/types/CMakeLists.txt
+++ b/host/include/uhd/types/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -25,8 +25,8 @@ INSTALL(FILES
     mac_addr.hpp
     metadata.hpp
     otw_type.hpp
-    ranges.ipp
     ranges.hpp
+    sensors.hpp
     serial.hpp
     stream_cmd.hpp
     time_spec.hpp
diff --git a/host/include/uhd/types/clock_config.hpp b/host/include/uhd/types/clock_config.hpp
index 9342fbb7b..a72eb63de 100644
--- a/host/include/uhd/types/clock_config.hpp
+++ b/host/include/uhd/types/clock_config.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -28,16 +28,19 @@ namespace uhd{
      * The source and polarity for the PPS clock.
      */
     struct UHD_API clock_config_t{
+        //------ simple usage --------//
+        static clock_config_t external(void);
+        static clock_config_t internal(void);
+
+        //------ advanced usage --------//
         enum ref_source_t {
             REF_AUTO = 'a', //automatic (device specific)
             REF_INT  = 'i', //internal reference
             REF_SMA  = 's', //external sma port
-            REF_MIMO = 'm'  //mimo cable (usrp2 only)
         } ref_source;
         enum pps_source_t {
             PPS_INT  = 'i', //there is no internal
             PPS_SMA  = 's', //external sma port
-            PPS_MIMO = 'm'  //mimo cable (usrp2 only)
         } pps_source;
         enum pps_polarity_t {
             PPS_NEG = 'n', //negative edge
diff --git a/host/include/uhd/types/dict.hpp b/host/include/uhd/types/dict.hpp
index 6166140a0..97fa8f09c 100644
--- a/host/include/uhd/types/dict.hpp
+++ b/host/include/uhd/types/dict.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -54,14 +54,14 @@ namespace uhd{
          * Key order depends on insertion precedence.
          * \return vector of keys
          */
-        const std::vector<Key> keys(void) const;
+        std::vector<Key> keys(void) const;
 
         /*!
          * Get a list of the values in this dict.
          * Value order depends on insertion precedence.
          * \return vector of values
          */
-        const std::vector<Val> vals(void) const;
+        std::vector<Val> vals(void) const;
 
         /*!
          * Does the dictionary contain this key?
@@ -73,10 +73,24 @@ namespace uhd{
         /*!
          * Get a value in the dict or default.
          * \param key the key to look for
-         * \param def use if key not found
+         * \param other use if key not found
          * \return the value or default
          */
-        const Val &get(const Key &key, const Val &def) const;
+        const Val &get(const Key &key, const Val &other) const;
+
+        /*!
+         * Get a value in the dict or throw.
+         * \param key the key to look for
+         * \return the value or default
+         */
+        const Val &get(const Key &key) const;
+
+        /*!
+         * Set a value in the dict at the key.
+         * \param key the key to set at
+         * \param val the value to set
+         */
+        void set(const Key &key, const Val &val);
 
         /*!
          * Get a value for the given key if it exists.
diff --git a/host/include/uhd/types/dict.ipp b/host/include/uhd/types/dict.ipp
index f037d7988..0c014474e 100644
--- a/host/include/uhd/types/dict.ipp
+++ b/host/include/uhd/types/dict.ipp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -59,7 +59,7 @@ namespace uhd{
     }
 
     template <typename Key, typename Val>
-    const std::vector<Key> dict<Key, Val>::keys(void) const{
+    std::vector<Key> dict<Key, Val>::keys(void) const{
         std::vector<Key> keys;
         BOOST_FOREACH(const pair_t &p, _map){
             keys.push_back(p.first);
@@ -68,7 +68,7 @@ namespace uhd{
     }
 
     template <typename Key, typename Val>
-    const std::vector<Val> dict<Key, Val>::vals(void) const{
+    std::vector<Val> dict<Key, Val>::vals(void) const{
         std::vector<Val> vals;
         BOOST_FOREACH(const pair_t &p, _map){
             vals.push_back(p.second);
@@ -85,11 +85,24 @@ namespace uhd{
     }
 
     template <typename Key, typename Val>
-    const Val &dict<Key, Val>::get(const Key &key, const Val &def) const{
+    const Val &dict<Key, Val>::get(const Key &key, const Val &other) const{
         BOOST_FOREACH(const pair_t &p, _map){
             if (p.first == key) return p.second;
         }
-        return def;
+        return other;
+    }
+
+    template <typename Key, typename Val>
+    const Val &dict<Key, Val>::get(const Key &key) const{
+        BOOST_FOREACH(const pair_t &p, _map){
+            if (p.first == key) return p.second;
+        }
+        throw key_not_found<Key, Val>(key);
+    }
+
+    template <typename Key, typename Val>
+    void dict<Key, Val>::set(const Key &key, const Val &val){
+        (*this)[key] = val;
     }
 
     template <typename Key, typename Val>
diff --git a/host/include/uhd/types/ranges.hpp b/host/include/uhd/types/ranges.hpp
index 366efb1f3..f0d0e1c0b 100644
--- a/host/include/uhd/types/ranges.hpp
+++ b/host/include/uhd/types/ranges.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -22,7 +22,6 @@
 #include <uhd/utils/pimpl.hpp>
 #include <string>
 #include <vector>
-#include <string>
 
 namespace uhd{
 
@@ -30,14 +29,15 @@ namespace uhd{
      * A range object describes a set of discrete values of the form:
      * y = start + step*n, where n is an integer between 0 and (stop - start)/step
      */
-    template <typename T> class range_t{
+    class UHD_API range_t{
     public:
+
         /*!
          * Create a range from a single value.
          * The step size will be taken as zero.
          * \param value the only possible value in this range
          */
-        range_t(const T &value = T(0));
+        range_t(double value = 0);
 
         /*!
          * Create a range from a full set of values.
@@ -46,28 +46,27 @@ namespace uhd{
          * \param stop the maximum value for this range
          * \param step the step size for this range
          */
-        range_t(const T &start, const T &stop, const T &step = T(0));
+        range_t(double start, double stop, double step = 0);
 
         //! Get the start value for this range.
-        const T start(void) const;
+        double start(void) const;
 
         //! Get the stop value for this range.
-        const T stop(void) const;
+        double stop(void) const;
 
         //! Get the step value for this range.
-        const T step(void) const;
+        double step(void) const;
 
         //! Convert this range to a printable string
         const std::string to_pp_string(void) const;
 
-    private: 
-        UHD_PIMPL_DECL(impl) _impl;
+    private: UHD_PIMPL_DECL(impl) _impl;
     };
 
     /*!
      * A meta-range object holds a list of individual ranges.
      */
-    template <typename T> struct meta_range_t : std::vector<range_t<T> >{
+    struct UHD_API meta_range_t : std::vector<range_t>{
 
         //! A default constructor for an empty meta-range
         meta_range_t(void);
@@ -79,7 +78,8 @@ namespace uhd{
          * \param last the end iterator
          */
         template <typename InputIterator>
-        meta_range_t(InputIterator first, InputIterator last);
+        meta_range_t(InputIterator first, InputIterator last):
+            std::vector<range_t>(first, last){ /* NOP */ }
 
         /*!
          * A convenience constructor for a single range.
@@ -88,16 +88,16 @@ namespace uhd{
          * \param stop the maximum value for this range
          * \param step the step size for this range
          */
-        meta_range_t(const T &start, const T &stop, const T &step = T(0));
+        meta_range_t(double start, double stop, double step = 0);
 
         //! Get the overall start value for this meta-range.
-        const T start(void) const;
+        double start(void) const;
 
         //! Get the overall stop value for this meta-range.
-        const T stop(void) const;
+        double stop(void) const;
 
         //! Get the overall step value for this meta-range.
-        const T step(void) const;
+        double step(void) const;
 
         /*!
          * Clip the target value to a possible range value.
@@ -105,22 +105,16 @@ namespace uhd{
          * \param clip_step if true, clip to steps as well
          * \return a value that is in one of the ranges
          */
-         const T clip(const T &value, bool clip_step = false) const;
+        double clip(double value, bool clip_step = false) const;
 
         //! Convert this meta-range to a printable string
         const std::string to_pp_string(void) const;
 
     };
 
-    //!typedef for a gain meta-range
-    typedef meta_range_t<float> gain_range_t;
-
-    //!typedef for a frequency meta-range
-    typedef meta_range_t<double> freq_range_t;
-
+    typedef meta_range_t gain_range_t;
+    typedef meta_range_t freq_range_t;
 
 } //namespace uhd
 
-#include <uhd/types/ranges.ipp>
-
 #endif /* INCLUDED_UHD_TYPES_RANGES_HPP */
diff --git a/host/include/uhd/types/ranges.ipp b/host/include/uhd/types/ranges.ipp
deleted file mode 100644
index 944ada51f..000000000
--- a/host/include/uhd/types/ranges.ipp
+++ /dev/null
@@ -1,188 +0,0 @@
-//
-// Copyright 2010 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-
-#ifndef INCLUDED_UHD_TYPES_RANGES_IPP
-#define INCLUDED_UHD_TYPES_RANGES_IPP
-
-#include <boost/math/special_functions/round.hpp>
-#include <boost/foreach.hpp>
-#include <algorithm>
-#include <stdexcept>
-#include <sstream>
-
-namespace uhd{
-
-    /*******************************************************************
-     * range_t implementation code
-     ******************************************************************/
-    template <typename T> struct range_t<T>::impl{
-        impl(const T &start, const T &stop, const T &step):
-            start(start), stop(stop), step(step)
-        {
-            /* NOP */
-        }
-        const T start, stop, step;
-    };
-
-    template <typename T> range_t<T>::range_t(const T &value):
-        _impl(UHD_PIMPL_MAKE(impl, (value, value, T(0))))
-    {
-        /* NOP */
-    }
-
-    template <typename T> range_t<T>::range_t(
-        const T &start, const T &stop, const T &step
-    ):
-        _impl(UHD_PIMPL_MAKE(impl, (start, stop, step)))
-    {
-        if (stop < start){
-            throw std::invalid_argument("cannot make range where stop < start");
-        }
-    }
-
-    template <typename T> const T range_t<T>::start(void) const{
-        return _impl->start;
-    }
-
-    template <typename T> const T range_t<T>::stop(void) const{
-        return _impl->stop;
-    }
-
-    template <typename T> const T range_t<T>::step(void) const{
-        return _impl->step;
-    }
-
-    template <typename T> const std::string range_t<T>::to_pp_string(void) const{
-        std::stringstream ss;
-        ss << "(" << this->start();
-        if (this->start() != this->stop()) ss << ", " << this->stop();
-        if (this->step() != T(0)) ss << ", " << this->step();
-        ss << ")";
-        return ss.str();
-    }
-
-    /*******************************************************************
-     * meta_range_t implementation code
-     ******************************************************************/
-
-    namespace /*anon*/{
-        template <typename T> inline
-        void check_meta_range_monotonic(const meta_range_t<T> &mr){
-            if (mr.empty()){
-                throw std::runtime_error("meta-range cannot be empty");
-            }
-            for (size_t i = 1; i < mr.size(); i++){
-                if (mr.at(i).start() < mr.at(i-1).stop()){
-                    throw std::runtime_error("meta-range is not monotonic");
-                }
-            }
-        }
-    } //namespace /*anon*/
-
-
-    template <typename T> meta_range_t<T>::meta_range_t(void){
-        /* NOP */
-    }
-
-    template <typename T> template <typename InputIterator>
-    meta_range_t<T>::meta_range_t(
-        InputIterator first, InputIterator last
-    ):
-        std::vector<range_t<T> >(first, last)
-    {
-        /* NOP */
-    }
-
-    template <typename T> meta_range_t<T>::meta_range_t(
-        const T &start, const T &stop, const T &step
-    ):
-        std::vector<range_t<T> > (1, range_t<T>(start, stop, step))
-    {
-        /* NOP */
-    }
-
-    template <typename T> const T meta_range_t<T>::start(void) const{
-        check_meta_range_monotonic(*this);
-        T min_start = this->front().start();
-        BOOST_FOREACH(const range_t<T> &r, (*this)){
-            min_start = std::min(min_start, r.start());
-        }
-        return min_start;
-    }
-
-    template <typename T> const T meta_range_t<T>::stop(void) const{
-        check_meta_range_monotonic(*this);
-        T max_stop = this->front().stop();
-        BOOST_FOREACH(const range_t<T> &r, (*this)){
-            max_stop = std::max(max_stop, r.stop());
-        }
-        return max_stop;
-    }
-
-    template <typename T> const T meta_range_t<T>::step(void) const{
-        check_meta_range_monotonic(*this);
-        std::vector<T> non_zero_steps;
-        range_t<T> last = this->front();
-        BOOST_FOREACH(const range_t<T> &r, (*this)){
-            //steps at each range
-            if (r.step() > T(0)) non_zero_steps.push_back(r.step());
-            //and steps in-between ranges
-            T ibtw_step = r.start() - last.stop();
-            if (ibtw_step > T(0)) non_zero_steps.push_back(ibtw_step);
-            //store ref to last
-            last = r;
-        }
-        if (non_zero_steps.empty()) return T(0); //all zero steps, its zero...
-        return *std::min_element(non_zero_steps.begin(), non_zero_steps.end());
-    }
-
-    template <typename T> const T meta_range_t<T>::clip(
-        const T &value, bool clip_step
-    ) const{
-        check_meta_range_monotonic(*this);
-        T last_stop = this->front().stop();
-        BOOST_FOREACH(const range_t<T> &r, (*this)){
-            //in-between ranges, clip to nearest
-            if (value < r.start()){
-                return (std::abs(value - r.start()) < std::abs(value - last_stop))?
-                    r.start() : last_stop;
-            }
-            //in this range, clip here
-            if (value <= r.stop()){
-                if (not clip_step or r.step() == T(0)) return value;
-                return boost::math::round((value - r.start())/r.step())*r.step() + r.start();
-            }
-            //continue on to the next range
-            last_stop = r.stop();
-        }
-        return last_stop;
-    }
-
-    template <typename T> const std::string meta_range_t<T>::to_pp_string(void) const{
-        std::stringstream ss;
-        BOOST_FOREACH(const range_t<T> &r, (*this)){
-            ss << r.to_pp_string() << std::endl;
-        }
-        return ss.str();
-    }
-
-    UHD_EXIM_TMPL template struct UHD_API meta_range_t<float>;
-    UHD_EXIM_TMPL template struct UHD_API meta_range_t<double>;
-
-} //namespace uhd
-
-#endif /* INCLUDED_UHD_TYPES_RANGES_IPP */
diff --git a/host/include/uhd/types/sensors.hpp b/host/include/uhd/types/sensors.hpp
new file mode 100644
index 000000000..6f003bb40
--- /dev/null
+++ b/host/include/uhd/types/sensors.hpp
@@ -0,0 +1,131 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#ifndef INCLUDED_UHD_TYPES_SENSORS_HPP
+#define INCLUDED_UHD_TYPES_SENSORS_HPP
+
+#include <uhd/config.hpp>
+#include <string>
+
+namespace uhd{
+
+    /*!
+     * A sensor value stores a sensor reading as a string with unit and data type.
+     * The sensor value class can be used in the following way:
+     *
+     * sensor_value_t ref_lock_sensor("Reference", my_lock, "unlocked", "locked");
+     * std::cout << ref_lock_sensor.to_pp_string() << std::endl;
+     * //prints Reference: locked
+     *
+     * sensor_value_t temp_sensor("Temperature", my_temp, "C");
+     * std::cout << temp_sensor.to_pp_string() << std::endl;
+     * //prints Temperature: 38.5 C
+     */
+    struct UHD_API sensor_value_t{
+
+        //! typedef for the signed integer type
+        typedef signed int_type;
+
+        //! typedef for the real number type
+        typedef double real_type;
+
+        /*!
+         * Create a sensor value from a boolean.
+         * \param name the name of the sensor
+         * \param value the value true or false
+         * \param ufalse the unit string when value is false
+         * \param utrue the unit string when value is true
+         */
+        sensor_value_t(
+            const std::string &name,
+            bool value,
+            const std::string &ufalse,
+            const std::string &utrue
+        );
+
+        /*!
+         * Create a sensor value from an integer.
+         * \param name the name of the sensor
+         * \param value the signed integer value
+         * \param unit the associated unit type
+         * \param formatter the formatter string
+         */
+        sensor_value_t(
+            const std::string &name,
+            int_type value,
+            const std::string &unit,
+            const std::string &formatter = "%d"
+        );
+
+        /*!
+         * Create a sensor value from a real number.
+         * \param name the name of the sensor
+         * \param value the real number value
+         * \param unit the associated unit type
+         * \param formatter the formatter string
+         */
+        sensor_value_t(
+            const std::string &name,
+            real_type value,
+            const std::string &unit,
+            const std::string &formatter = "%f"
+        );
+
+        /*!
+         * Create a sensor value from a string.
+         * \param name the name of the sensor
+         * \param value the real number value
+         * \param unit the associated unit type
+         */
+        sensor_value_t(
+            const std::string &name,
+            const std::string &value,
+            const std::string &unit
+        );
+
+        //! The name of the sensor value
+        const std::string name;
+
+        /*!
+         * The sensor value as a string.
+         * For integer and real number types, this will be the output of the formatter.
+         * For boolean types, the value will be the string literal "true" or "false".
+         */
+        const std::string value;
+
+        /*!
+         * The sensor value's unit type.
+         * For boolean types, this will be the one of the two units
+         * depending upon the value of the boolean true or false.
+         */
+        const std::string unit;
+
+        //! The data type of the value
+        const enum{
+            BOOLEAN = 'b',
+            INTEGER = 'i',
+            REALNUM = 'r',
+            STRING  = 's'
+        } type;
+
+        //! Convert this sensor value into a printable string
+        std::string to_pp_string(void) const;
+    };
+
+} //namespace uhd
+
+#endif /* INCLUDED_UHD_TYPES_SENSORS_HPP */
diff --git a/host/include/uhd/usrp/CMakeLists.txt b/host/include/uhd/usrp/CMakeLists.txt
index c8d7281d3..f60b35e59 100644
--- a/host/include/uhd/usrp/CMakeLists.txt
+++ b/host/include/uhd/usrp/CMakeLists.txt
@@ -34,6 +34,7 @@ INSTALL(FILES
 
     ### utilities ###
     dsp_utils.hpp
+    gps_ctrl.hpp
     mboard_eeprom.hpp
     misc_utils.hpp
     subdev_spec.hpp
diff --git a/host/include/uhd/usrp/codec_props.hpp b/host/include/uhd/usrp/codec_props.hpp
index ab09b1703..5d0a2913c 100644
--- a/host/include/uhd/usrp/codec_props.hpp
+++ b/host/include/uhd/usrp/codec_props.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -30,8 +30,8 @@ namespace uhd{ namespace usrp{
     enum codec_prop_t{
         CODEC_PROP_NAME           = 'n', //ro, std::string
         CODEC_PROP_OTHERS         = 'o', //ro, prop_names_t
-        CODEC_PROP_GAIN_I         = 'i', //rw, float
-        CODEC_PROP_GAIN_Q         = 'q', //rw, float
+        CODEC_PROP_GAIN_I         = 'i', //rw, double
+        CODEC_PROP_GAIN_Q         = 'q', //rw, double
         CODEC_PROP_GAIN_RANGE     = 'r', //ro, gain_range_t
         CODEC_PROP_GAIN_NAMES     = 'G'  //ro, prop_names_t
     };
diff --git a/host/include/uhd/usrp/dboard_iface.hpp b/host/include/uhd/usrp/dboard_iface.hpp
index b04756c47..cfb727017 100644
--- a/host/include/uhd/usrp/dboard_iface.hpp
+++ b/host/include/uhd/usrp/dboard_iface.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -102,7 +102,7 @@ public:
      * \param which_dac the dac index 0, 1, 2, 3...
      * \param value the value in volts
      */
-    virtual void write_aux_dac(unit_t unit, aux_dac_t which_dac, float value) = 0;
+    virtual void write_aux_dac(unit_t unit, aux_dac_t which_dac, double value) = 0;
 
     /*!
      * Read from an aux adc.
@@ -111,7 +111,7 @@ public:
      * \param which_adc the adc index 0, 1, 2, 3...
      * \return the value in volts
      */
-    virtual float read_aux_adc(unit_t unit, aux_adc_t which_adc) = 0;
+    virtual double read_aux_adc(unit_t unit, aux_adc_t which_adc) = 0;
 
     /*!
      * Set a daughterboard output pin control source.
@@ -191,8 +191,6 @@ public:
      */
     virtual boost::uint16_t get_gpio_out(unit_t unit);
 
-    UHD_DEPRECATED void write_gpio(unit_t unit, boost::uint16_t value){set_gpio_out(unit, value);}
-
     /*!
      * Setup the GPIO debug mux.
      *
diff --git a/host/lib/usrp/usrp2/gps_ctrl.hpp b/host/include/uhd/usrp/gps_ctrl.hpp
index 5936a6fb6..74f984ee0 100644
--- a/host/lib/usrp/usrp2/gps_ctrl.hpp
+++ b/host/include/uhd/usrp/gps_ctrl.hpp
@@ -18,21 +18,24 @@
 #ifndef INCLUDED_GPS_CTRL_HPP
 #define INCLUDED_GPS_CTRL_HPP
 
-#include "usrp2_iface.hpp"
 #include <boost/shared_ptr.hpp>
 #include <boost/utility.hpp>
+#include <boost/function.hpp>
 #include <boost/date_time/posix_time/posix_time_types.hpp>
 
 using namespace boost::posix_time;
 
-class usrp2_gps_ctrl : boost::noncopyable{
+typedef boost::function<void(std::string)> gps_send_fn_t;
+typedef boost::function<std::string(void)> gps_recv_fn_t;
+
+class gps_ctrl : boost::noncopyable{
 public:
-  typedef boost::shared_ptr<usrp2_gps_ctrl> sptr;
+  typedef boost::shared_ptr<gps_ctrl> sptr;
 
   /*!
    * Make a GPS config for Jackson Labs or generic NMEA GPS devices
    */
-  static sptr make(usrp2_iface::sptr iface);
+  static sptr make(gps_send_fn_t, gps_recv_fn_t);
 
   /*!
    * Get the current GPS time and date
@@ -50,4 +53,4 @@ public:
 
 };
 
-#endif /* INCLUDED_CLOCK_CTRL_HPP */
+#endif /* INCLUDED_GPS_CTRL_HPP */
diff --git a/host/include/uhd/usrp/mboard_props.hpp b/host/include/uhd/usrp/mboard_props.hpp
index df94d1678..c82bfc21a 100644
--- a/host/include/uhd/usrp/mboard_props.hpp
+++ b/host/include/uhd/usrp/mboard_props.hpp
@@ -43,7 +43,7 @@ namespace uhd{ namespace usrp{
         MBOARD_PROP_TX_SUBDEV_SPEC  = 'R', //rw, subdev_spec_t
         MBOARD_PROP_CLOCK_CONFIG    = 'C', //rw, clock_config_t
         MBOARD_PROP_TIME_NOW        = 't', //rw, time_spec_t
-        MBOARD_PROP_TIME_NEXT_PPS   = 'T', //wo, time_spec_t
+        MBOARD_PROP_TIME_PPS        = 'T', //wo, time_spec_t
         MBOARD_PROP_STREAM_CMD      = 's', //wo, stream_cmd_t
         MBOARD_PROP_EEPROM_MAP      = 'M'  //wr, mboard_eeprom_t::sptr
     };
diff --git a/host/include/uhd/usrp/multi_usrp.hpp b/host/include/uhd/usrp/multi_usrp.hpp
index 98ba07fc0..b603d4324 100644
--- a/host/include/uhd/usrp/multi_usrp.hpp
+++ b/host/include/uhd/usrp/multi_usrp.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -51,7 +51,8 @@ namespace uhd{ namespace usrp{
  *
  * //create a multi_usrp with two boards in the configuration
  * device_addr_t dev_addr;
- * dev_addr["addr"] = "192.168.10.2 192.168.10.3";
+ * dev_addr["addr0"] = "192.168.10.2"
+ * dev_addr["addr1"] = "192.168.10.3";
  * multi_usrp::sptr dev = multi_usrp::make(dev_addr);
  *
  * //set the board on 10.2 to use the A RX subdevice (RX channel 0)
@@ -108,12 +109,18 @@ public:
     virtual std::string get_mboard_name(size_t mboard) = 0;
 
     /*!
-     * Gets the current time in the usrp time registers.
+     * Get the current time in the usrp time registers.
      * \return a timespec representing current usrp time
      */
     virtual time_spec_t get_time_now(void) = 0;
 
     /*!
+     * Get the time when the last pps pulse occured.
+     * \return a timespec representing the last pps
+     */
+    virtual time_spec_t get_time_last_pps(void) = 0;
+
+    /*!
      * Set the time registers on the usrp at the next pps tick.
      * The values will not be latched in until the pulse occurs.
      * It is recommended that the user sleep(1) after calling to ensure
@@ -133,14 +140,13 @@ public:
      * Ex: Host machine is not attached to serial port of GPSDO
      * and can therefore not query the GPSDO for the PPS edge.
      *
-     * This is a 3-step process, and will take at most 3 seconds to complete.
+     * This is a 2-step process, and will take at most 2 seconds to complete.
      * Upon completion, the times will be synchronized to the time provided.
      *
-     * - Step1: set the time at the next pps (potential race condition)
-     * - Step2: wait for the seconds to rollover to catch the pps edge
-     * - Step3: set the time at the next pps (synchronous for all boards)
+     * - Step1: wait for the last pps time to transition to catch the edge
+     * - Step2: set the time at the next pps (synchronous for all boards)
      *
-     * \param time_spec the time to latch into the usrp device
+     * \param time_spec the time to latch at the next pps after catching the edge
      */
     virtual void set_time_unknown_pps(const time_spec_t &time_spec) = 0;
 
@@ -251,10 +257,10 @@ public:
      * \param name the name of the gain element
      * \param chan the channel index 0 to N-1
      */
-    virtual void set_rx_gain(float gain, const std::string &name, size_t chan) = 0;
+    virtual void set_rx_gain(double gain, const std::string &name, size_t chan) = 0;
 
     //! A convenience wrapper for setting overall RX gain
-    void set_rx_gain(float gain, size_t chan){
+    void set_rx_gain(double gain, size_t chan){
         return this->set_rx_gain(gain, ALL_GAINS, chan);
     }
 
@@ -265,10 +271,10 @@ public:
      * \param chan the channel index 0 to N-1
      * \return the gain in dB
      */
-    virtual float get_rx_gain(const std::string &name, size_t chan) = 0;
+    virtual double get_rx_gain(const std::string &name, size_t chan) = 0;
 
     //! A convenience wrapper for getting overall RX gain
-    float get_rx_gain(size_t chan){
+    double get_rx_gain(size_t chan){
         return this->get_rx_gain(ALL_GAINS, chan);
     }
 
@@ -342,7 +348,7 @@ public:
      * \return the rssi in dB
      * \throw exception if RSSI readback not supported
      */
-    virtual float read_rssi(size_t chan) = 0;
+    virtual double read_rssi(size_t chan) = 0;
 
     /*!
      * Get the dboard interface object for the RX subdevice.
@@ -430,10 +436,10 @@ public:
      * \param name the name of the gain element
      * \param chan the channel index 0 to N-1
      */
-    virtual void set_tx_gain(float gain, const std::string &name, size_t chan) = 0;
+    virtual void set_tx_gain(double gain, const std::string &name, size_t chan) = 0;
 
     //! A convenience wrapper for setting overall TX gain
-    void set_tx_gain(float gain, size_t chan){
+    void set_tx_gain(double gain, size_t chan){
         return this->set_tx_gain(gain, ALL_GAINS, chan);
     }
 
@@ -444,10 +450,10 @@ public:
      * \param chan the channel index 0 to N-1
      * \return the gain in dB
      */
-    virtual float get_tx_gain(const std::string &name, size_t chan) = 0;
+    virtual double get_tx_gain(const std::string &name, size_t chan) = 0;
 
     //! A convenience wrapper for getting overall TX gain
-    float get_tx_gain(size_t chan){
+    double get_tx_gain(size_t chan){
         return this->get_tx_gain(ALL_GAINS, chan);
     }
 
diff --git a/host/include/uhd/usrp/single_usrp.hpp b/host/include/uhd/usrp/single_usrp.hpp
index 26303fe10..d80999300 100644
--- a/host/include/uhd/usrp/single_usrp.hpp
+++ b/host/include/uhd/usrp/single_usrp.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -77,12 +77,18 @@ public:
     virtual std::string get_mboard_name(void) = 0;
 
     /*!
-     * Gets the current time in the usrp time registers.
+     * Get the current time in the usrp time registers.
      * \return a timespec representing current usrp time
      */
     virtual time_spec_t get_time_now(void) = 0;
 
     /*!
+     * Get the time when the last pps pulse occured.
+     * \return a timespec representing the last pps
+     */
+    virtual time_spec_t get_time_last_pps(void) = 0;
+
+    /*!
      * Sets the time registers on the usrp immediately.
      * \param time_spec the time to latch into the usrp device
      */
@@ -184,10 +190,10 @@ public:
      * \param name the name of the gain element
      * \param chan the channel index 0 to N-1
      */
-    virtual void set_rx_gain(float gain, const std::string &name, size_t chan = 0) = 0;
+    virtual void set_rx_gain(double gain, const std::string &name, size_t chan = 0) = 0;
 
     //! A convenience wrapper for setting overall RX gain
-    void set_rx_gain(float gain, size_t chan = 0){
+    void set_rx_gain(double gain, size_t chan = 0){
         return this->set_rx_gain(gain, ALL_GAINS, chan);
     }
 
@@ -198,10 +204,10 @@ public:
      * \param chan the channel index 0 to N-1
      * \return the gain in dB
      */
-    virtual float get_rx_gain(const std::string &name, size_t chan = 0) = 0;
+    virtual double get_rx_gain(const std::string &name, size_t chan = 0) = 0;
 
     //! A convenience wrapper for getting overall RX gain
-    float get_rx_gain(size_t chan = 0){
+    double get_rx_gain(size_t chan = 0){
         return this->get_rx_gain(ALL_GAINS, chan);
     }
 
@@ -275,7 +281,7 @@ public:
      * \return the rssi in dB
      * \throw exception if RSSI readback not supported
      */
-    virtual float read_rssi(size_t chan = 0) = 0;
+    virtual double read_rssi(size_t chan = 0) = 0;
 
     /*!
      * Get the dboard interface object for the RX subdevice.
@@ -353,10 +359,10 @@ public:
      * \param name the name of the gain element
      * \param chan the channel index 0 to N-1
      */
-    virtual void set_tx_gain(float gain, const std::string &name, size_t chan = 0) = 0;
+    virtual void set_tx_gain(double gain, const std::string &name, size_t chan = 0) = 0;
 
     //! A convenience wrapper for setting overall TX gain
-    void set_tx_gain(float gain, size_t chan = 0){
+    void set_tx_gain(double gain, size_t chan = 0){
         return this->set_tx_gain(gain, ALL_GAINS, chan);
     }
 
@@ -367,10 +373,10 @@ public:
      * \param chan the channel index 0 to N-1
      * \return the gain in dB
      */
-    virtual float get_tx_gain(const std::string &name, size_t chan = 0) = 0;
+    virtual double get_tx_gain(const std::string &name, size_t chan = 0) = 0;
 
     //! A convenience wrapper for getting overall TX gain
-    float get_tx_gain(size_t chan = 0){
+    double get_tx_gain(size_t chan = 0){
         return this->get_tx_gain(ALL_GAINS, chan);
     }
 
diff --git a/host/include/uhd/usrp/subdev_props.hpp b/host/include/uhd/usrp/subdev_props.hpp
index 8f096ffe4..8d05f4c27 100644
--- a/host/include/uhd/usrp/subdev_props.hpp
+++ b/host/include/uhd/usrp/subdev_props.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -44,7 +44,7 @@ namespace uhd{ namespace usrp{
     enum subdev_prop_t{
         SUBDEV_PROP_NAME              = 'n', //ro, std::string
         SUBDEV_PROP_OTHERS            = 'o', //ro, prop_names_t
-        SUBDEV_PROP_GAIN              = 'g', //rw, float
+        SUBDEV_PROP_GAIN              = 'g', //rw, double
         SUBDEV_PROP_GAIN_RANGE        = 'r', //ro, gain_range_t
         SUBDEV_PROP_GAIN_NAMES        = 'G', //ro, prop_names_t
         SUBDEV_PROP_FREQ              = 'f', //rw, double
@@ -55,7 +55,7 @@ namespace uhd{ namespace usrp{
         SUBDEV_PROP_CONNECTION        = 'c', //ro, subdev_conn_t
         SUBDEV_PROP_ENABLED           = 'e', //rw, bool
         SUBDEV_PROP_USE_LO_OFFSET     = 'l', //ro, bool
-        SUBDEV_PROP_RSSI              = 'R', //ro, float
+        SUBDEV_PROP_RSSI              = 'R', //ro, double
         SUBDEV_PROP_BANDWIDTH         = 'B'  //rw, double
     };
 
diff --git a/host/include/uhd/utils/algorithm.hpp b/host/include/uhd/utils/algorithm.hpp
index 53c571e4e..5e2230371 100644
--- a/host/include/uhd/utils/algorithm.hpp
+++ b/host/include/uhd/utils/algorithm.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -22,9 +22,6 @@
 #include <boost/range/begin.hpp>
 #include <boost/range/end.hpp>
 #include <boost/range/size.hpp>
-#include <boost/algorithm/string.hpp>
-#include <vector>
-#include <string>
 
 /*! \file algorithm.hpp
  * Useful templated functions and classes that I like to pretend are part of stl.
@@ -33,24 +30,6 @@
 namespace std{
 
     /*!
-     * Split a string at the separation characters.
-     * \param string the string to split
-     * \param sep the separator characters
-     * \return a range of strings
-     */
-    inline std::vector<std::string> split_string(
-        const std::string &string, const std::string &sep = "\t "
-    ){
-        std::vector<std::string> strings;
-        if (not string.empty()) boost::split(
-            // do not split an empty string:
-            // let me tell you about the time when boost::split segfaulted...
-            strings, string, boost::is_any_of(sep)
-        );
-        return strings;
-    }
-
-    /*!
      * A wrapper around std::copy that takes ranges instead of iterators.
      *
      * Copy the elements of the source range into the destination range.
@@ -164,8 +143,12 @@ namespace std{
      * \param bound2 the upper or lower bound
      * \return the value clipped at the bounds
      */
-    template<typename T> inline T clip(T val, T bound1, T bound2){
-        return std::min(std::max(val, std::min(bound1, bound2)), std::max(bound1, bound2));
+    template<typename T> inline T clip(const T &val, const T &bound1, const T &bound2){
+        const T minimum = std::min(bound1, bound2);
+        if (val < minimum) return minimum;
+        const T maximum = std::max(bound1, bound2);
+        if (val > maximum) return maximum;
+        return val;
     }
 
 }//namespace std
diff --git a/host/include/uhd/utils/gain_group.hpp b/host/include/uhd/utils/gain_group.hpp
index c863248ce..7ef7bdcf5 100644
--- a/host/include/uhd/utils/gain_group.hpp
+++ b/host/include/uhd/utils/gain_group.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -33,8 +33,8 @@ namespace uhd{
  */
 struct UHD_API gain_fcns_t{
     boost::function<gain_range_t(void)> get_range;
-    boost::function<float(void)>        get_value;
-    boost::function<void(float)>        set_value;
+    boost::function<double(void)>        get_value;
+    boost::function<void(double)>        set_value;
 };
 
 class UHD_API gain_group : boost::noncopyable{
@@ -56,7 +56,7 @@ public:
      * \param name name of the gain element (optional)
      * \return a gain value of the element or all elements
      */
-    virtual float get_value(const std::string &name = "") = 0;
+    virtual double get_value(const std::string &name = "") = 0;
 
     /*!
      * Set the gain value for the gain element specified by name.
@@ -66,7 +66,7 @@ public:
      * \param gain the gain to set for the lement or across the group
      * \param name name of the gain element (optional)
      */
-    virtual void set_value(float gain, const std::string &name = "") = 0;
+    virtual void set_value(double gain, const std::string &name = "") = 0;
 
     /*!
      * Get a list of names of registered gain elements.
diff --git a/host/include/uhd/utils/static.hpp b/host/include/uhd/utils/static.hpp
index c61f10884..82cdf36d9 100644
--- a/host/include/uhd/utils/static.hpp
+++ b/host/include/uhd/utils/static.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -30,8 +30,17 @@
 
 /*!
  * Defines a static code block that will be called before main()
- * \param _x the name of the defined struct (must be unique in file)
+ * The static block will catch and print exceptions to std error.
+ * \param _x the unique name of the fixture (unique per source)
  */
-#define UHD_STATIC_BLOCK(_x) static struct _x{_x();}_x;_x::_x()
+#define UHD_STATIC_BLOCK(_x) \
+    void _x(void); \
+    static _uhd_static_fixture _x##_fixture(&_x, #_x); \
+    void _x(void)
+
+//! Helper for static block, constructor calls function
+struct UHD_API _uhd_static_fixture{
+    _uhd_static_fixture(void (*)(void), const char *);
+};
 
 #endif /* INCLUDED_UHD_UTILS_STATIC_HPP */
diff --git a/host/lib/CMakeLists.txt b/host/lib/CMakeLists.txt
index 498841561..d2845ffda 100644
--- a/host/lib/CMakeLists.txt
+++ b/host/lib/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -16,27 +16,6 @@
 #
 
 ########################################################################
-# Check Python Modules
-########################################################################
-INCLUDE(UHDPython)
-
-PYTHON_CHECK_MODULE(
-    "Python version 2.6 or greater"
-    "platform" "platform.python_version() >= '2.6'"
-    HAVE_PYTHON_PLAT_MIN_VERSION
-)
-
-PYTHON_CHECK_MODULE(
-    "Cheetah templates 2.0.0 or greater"
-    "Cheetah" "Cheetah.Version >= '2.0.0'"
-    HAVE_PYTHON_MODULE_CHEETAH
-)
-
-IF(NOT HAVE_PYTHON_PLAT_MIN_VERSION OR NOT HAVE_PYTHON_MODULE_CHEETAH)
-    MESSAGE(FATAL_ERROR "Error: python requirements not met for the build system.")
-ENDIF(NOT HAVE_PYTHON_PLAT_MIN_VERSION OR NOT HAVE_PYTHON_MODULE_CHEETAH)
-
-########################################################################
 # Helpful Macros
 ########################################################################
 MACRO(LIBUHD_APPEND_SOURCES)
@@ -89,6 +68,8 @@ ENDMACRO(INCLUDE_SUBDIRECTORY)
 # Include subdirectories (different than add)
 ########################################################################
 INCLUDE_SUBDIRECTORY(ic_reg_maps)
+INCLUDE_SUBDIRECTORY(types)
+INCLUDE_SUBDIRECTORY(convert)
 INCLUDE_SUBDIRECTORY(transport)
 INCLUDE_SUBDIRECTORY(usrp)
 INCLUDE_SUBDIRECTORY(utils)
@@ -116,7 +97,6 @@ INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})
 LIBUHD_APPEND_SOURCES(
     ${CMAKE_CURRENT_BINARY_DIR}/constants.hpp
     ${CMAKE_CURRENT_SOURCE_DIR}/device.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/types.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/version.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/wax.cpp
 )
@@ -127,6 +107,7 @@ LIBUHD_APPEND_SOURCES(
 ADD_LIBRARY(uhd SHARED ${libuhd_sources})
 TARGET_LINK_LIBRARIES(uhd ${Boost_LIBRARIES} ${libuhd_libs})
 SET_TARGET_PROPERTIES(uhd PROPERTIES DEFINE_SYMBOL "UHD_DLL_EXPORTS")
+SET_TARGET_PROPERTIES(uhd PROPERTIES SOVERSION ${UHD_VERSION_MAJOR})
 
 INSTALL(TARGETS uhd
     LIBRARY DESTINATION ${LIBRARY_DIR} # .so file
diff --git a/host/lib/convert/CMakeLists.txt b/host/lib/convert/CMakeLists.txt
new file mode 100644
index 000000000..a9f977cdc
--- /dev/null
+++ b/host/lib/convert/CMakeLists.txt
@@ -0,0 +1,65 @@
+#
+# Copyright 2011 Ettus Research LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+########################################################################
+# This file included, use CMake directory variables
+########################################################################
+INCLUDE(CheckIncludeFileCXX)
+MESSAGE(STATUS "")
+
+########################################################################
+# Check for SIMD headers
+########################################################################
+CHECK_INCLUDE_FILE_CXX(emmintrin.h HAVE_EMMINTRIN_H)
+IF(HAVE_EMMINTRIN_H)
+    LIBUHD_APPEND_SOURCES(
+        ${CMAKE_CURRENT_SOURCE_DIR}/convert_with_sse2.cpp
+    )
+ENDIF(HAVE_EMMINTRIN_H)
+
+CHECK_INCLUDE_FILE_CXX(arm_neon.h HAVE_ARM_NEON_H)
+IF(HAVE_ARM_NEON_H)
+    LIBUHD_APPEND_SOURCES(
+        ${CMAKE_CURRENT_SOURCE_DIR}/convert_with_neon.cpp
+    )
+ENDIF(HAVE_ARM_NEON_H)
+
+########################################################################
+# Convert types generation
+########################################################################
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})
+
+LIBUHD_PYTHON_GEN_SOURCE(
+    ${CMAKE_CURRENT_SOURCE_DIR}/gen_convert_pred.py
+    ${CMAKE_CURRENT_BINARY_DIR}/convert_pred.hpp
+)
+
+INCLUDE(AddFileDependencies)
+ADD_FILE_DEPENDENCIES(
+    ${CMAKE_CURRENT_SOURCE_DIR}/convert_impl.cpp
+    ${CMAKE_CURRENT_BINARY_DIR}/convert_pred.hpp
+)
+
+LIBUHD_PYTHON_GEN_SOURCE(
+    ${CMAKE_CURRENT_SOURCE_DIR}/gen_convert_general.py
+    ${CMAKE_CURRENT_BINARY_DIR}/convert_general.cpp
+)
+
+LIBUHD_APPEND_SOURCES(
+    ${CMAKE_CURRENT_SOURCE_DIR}/convert_impl.cpp
+)
diff --git a/host/lib/convert/convert_common.hpp b/host/lib/convert/convert_common.hpp
new file mode 100644
index 000000000..1a653a56f
--- /dev/null
+++ b/host/lib/convert/convert_common.hpp
@@ -0,0 +1,90 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#ifndef INCLUDED_LIBUHD_CONVERT_COMMON_HPP
+#define INCLUDED_LIBUHD_CONVERT_COMMON_HPP
+
+#include <uhd/convert.hpp>
+#include <uhd/utils/static.hpp>
+#include <boost/cstdint.hpp>
+#include <complex>
+
+#define DECLARE_CONVERTER(fcn, prio) \
+    static void fcn( \
+        uhd::convert::input_type &inputs, \
+        uhd::convert::output_type &outputs, \
+        size_t nsamps \
+    ); \
+    UHD_STATIC_BLOCK(register_##fcn##_##prio){ \
+        uhd::convert::register_converter(#fcn, fcn, prio); \
+    } \
+    static void fcn( \
+        uhd::convert::input_type &inputs, \
+        uhd::convert::output_type &outputs, \
+        size_t nsamps \
+    )
+
+/***********************************************************************
+ * Typedefs
+ **********************************************************************/
+typedef std::complex<float>          fc32_t;
+typedef std::complex<boost::int16_t> sc16_t;
+typedef boost::uint32_t              item32_t;
+
+/***********************************************************************
+ * Convert complex short buffer to items32
+ **********************************************************************/
+static UHD_INLINE item32_t sc16_to_item32(sc16_t num){
+    boost::uint16_t real = num.real();
+    boost::uint16_t imag = num.imag();
+    return (item32_t(real) << 16) | (item32_t(imag) << 0);
+}
+
+/***********************************************************************
+ * Convert items32 buffer to complex short
+ **********************************************************************/
+static UHD_INLINE sc16_t item32_to_sc16(item32_t item){
+    return sc16_t(
+        boost::int16_t(item >> 16),
+        boost::int16_t(item >> 0)
+    );
+}
+
+/***********************************************************************
+ * Convert complex float buffer to items32 (no swap)
+ **********************************************************************/
+static const float shorts_per_float = float(32767);
+
+static UHD_INLINE item32_t fc32_to_item32(fc32_t num){
+    boost::uint16_t real = boost::int16_t(num.real()*shorts_per_float);
+    boost::uint16_t imag = boost::int16_t(num.imag()*shorts_per_float);
+    return (item32_t(real) << 16) | (item32_t(imag) << 0);
+}
+
+/***********************************************************************
+ * Convert items32 buffer to complex float
+ **********************************************************************/
+static const float floats_per_short = float(1.0/shorts_per_float);
+
+static UHD_INLINE fc32_t item32_to_fc32(item32_t item){
+    return fc32_t(
+        float(boost::int16_t(item >> 16)*floats_per_short),
+        float(boost::int16_t(item >> 0)*floats_per_short)
+    );
+}
+
+#endif /* INCLUDED_LIBUHD_CONVERT_COMMON_HPP */
diff --git a/host/lib/convert/convert_impl.cpp b/host/lib/convert/convert_impl.cpp
new file mode 100644
index 000000000..6a5a1465d
--- /dev/null
+++ b/host/lib/convert/convert_impl.cpp
@@ -0,0 +1,111 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/convert.hpp>
+#include <uhd/utils/static.hpp>
+#include <uhd/utils/exception.hpp>
+#include <iostream>
+
+using namespace uhd;
+
+#include "convert_pred.hpp"
+
+static const bool debug = false;
+
+/***********************************************************************
+ * Define types for the function tables
+ **********************************************************************/
+struct fcn_table_entry_type{
+    convert::priority_type prio;
+    convert::function_type fcn;
+    fcn_table_entry_type(void)
+    : prio(convert::PRIORITY_EMPTY), fcn(NULL){
+        /* NOP */
+    }
+};
+typedef std::vector<fcn_table_entry_type> fcn_table_type;
+
+/***********************************************************************
+ * Setup the table registry
+ **********************************************************************/
+UHD_SINGLETON_FCN(fcn_table_type, get_cpu_to_otw_table);
+UHD_SINGLETON_FCN(fcn_table_type, get_otw_to_cpu_table);
+
+fcn_table_type &get_table(dir_type dir){
+    switch(dir){
+    case DIR_OTW_TO_CPU: return get_otw_to_cpu_table();
+    case DIR_CPU_TO_OTW: return get_cpu_to_otw_table();
+    }
+    UHD_THROW_INVALID_CODE_PATH();
+}
+
+/***********************************************************************
+ * The registry functions
+ **********************************************************************/
+void uhd::convert::register_converter(
+    const std::string &markup,
+    function_type fcn,
+    priority_type prio
+){
+    //extract the predicate and direction from the markup
+    dir_type dir;
+    pred_type pred = make_pred(markup, dir);
+
+    //get a reference to the function table
+    fcn_table_type &table = get_table(dir);
+
+    //resize the table so that its at least pred+1
+    if (table.size() <= pred) table.resize(pred+1);
+
+    //register the function if higher priority
+    if (table[pred].prio < prio){
+        table[pred].fcn = fcn;
+        table[pred].prio = prio;
+    }
+
+    //----------------------------------------------------------------//
+    if (debug) std::cout << "register_converter: " << markup << std::endl
+        << "    prio: " << prio << std::endl
+        << "    pred: " << pred << std::endl
+        << "    dir: " << dir << std::endl
+        << std::endl
+    ;
+    //----------------------------------------------------------------//
+}
+
+/***********************************************************************
+ * The converter functions
+ **********************************************************************/
+const convert::function_type &convert::get_converter_cpu_to_otw(
+    const io_type_t &io_type,
+    const otw_type_t &otw_type,
+    size_t num_input_buffs,
+    size_t num_output_buffs
+){
+    pred_type pred = make_pred(io_type, otw_type, num_input_buffs, num_output_buffs);
+    return get_cpu_to_otw_table().at(pred).fcn;
+}
+
+const convert::function_type &convert::get_converter_otw_to_cpu(
+    const io_type_t &io_type,
+    const otw_type_t &otw_type,
+    size_t num_input_buffs,
+    size_t num_output_buffs
+){
+    pred_type pred = make_pred(io_type, otw_type, num_input_buffs, num_output_buffs);
+    return get_otw_to_cpu_table().at(pred).fcn;
+}
diff --git a/host/lib/convert/convert_with_neon.cpp b/host/lib/convert/convert_with_neon.cpp
new file mode 100644
index 000000000..3d677db5b
--- /dev/null
+++ b/host/lib/convert/convert_with_neon.cpp
@@ -0,0 +1,61 @@
+//
+// Copyright 2011-2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include "convert_common.hpp"
+#include <arm_neon.h>
+
+using namespace uhd::convert;
+
+DECLARE_CONVERTER(convert_fc32_1_to_item32_1_nswap, PRIORITY_CUSTOM){
+    const fc32_t *input = reinterpret_cast<const fc32_t *>(inputs[0]);
+    item32_t *output = reinterpret_cast<item32_t *>(outputs[0]);
+
+    size_t i;
+
+    float32x4_t Q0 = vdupq_n_f32(shorts_per_float);
+    for (i=0; i < (nsamps & ~0x03); i+=2) {
+        float32x4_t Q1 = vld1q_f32(reinterpret_cast<const float *>(&input[i]));
+        float32x4_t Q2 = vmulq_f32(Q1, Q0);
+        int32x4_t Q3 = vcvtq_s32_f32(Q2);
+        int16x4_t D8 = vmovn_s32(Q3);
+        int16x4_t D9 = vrev32_s16(D8);
+        vst1_s16((reinterpret_cast<int16_t *>(&output[i])), D9);
+    }
+
+    for (; i < nsamps; i++)
+        output[i] = fc32_to_item32(input[i]);
+}
+
+DECLARE_CONVERTER(convert_item32_1_to_fc32_1_nswap, PRIORITY_CUSTOM){
+    const item32_t *input = reinterpret_cast<const item32_t *>(inputs[0]);
+    fc32_t *output = reinterpret_cast<fc32_t *>(outputs[0]);
+
+    size_t i;
+
+    float32x4_t Q1 = vdupq_n_f32(floats_per_short);
+    for (i=0; i < (nsamps & ~0x03); i+=2) {
+        int16x4_t D0 = vld1_s16(reinterpret_cast<const int16_t *>(&input[i]));
+        int16x4_t D1 = vrev32_s16(D0);
+        int32x4_t Q2 = vmovl_s16(D1);
+        float32x4_t Q3 = vcvtq_f32_s32(Q2);
+        float32x4_t Q4 = vmulq_f32(Q3, Q1);
+        vst1q_f32((reinterpret_cast<float *>(&output[i])), Q4);
+    }
+
+    for (; i < nsamps; i++)
+        output[i] = item32_to_fc32(input[i]);
+}
diff --git a/host/lib/convert/convert_with_sse2.cpp b/host/lib/convert/convert_with_sse2.cpp
new file mode 100644
index 000000000..96ee9134c
--- /dev/null
+++ b/host/lib/convert/convert_with_sse2.cpp
@@ -0,0 +1,148 @@
+//
+// Copyright 2011-2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include "convert_common.hpp"
+#include <uhd/utils/byteswap.hpp>
+#include <emmintrin.h>
+
+using namespace uhd::convert;
+
+DECLARE_CONVERTER(convert_fc32_1_to_item32_1_nswap, PRIORITY_CUSTOM){
+    const fc32_t *input = reinterpret_cast<const fc32_t *>(inputs[0]);
+    item32_t *output = reinterpret_cast<item32_t *>(outputs[0]);
+
+    __m128 scalar = _mm_set_ps1(shorts_per_float);
+
+    //convert blocks of samples with intrinsics
+    size_t i = 0; for (; i < (nsamps & ~0x3); i+=4){
+        //load from input
+        __m128 tmplo = _mm_loadu_ps(reinterpret_cast<const float *>(input+i+0));
+        __m128 tmphi = _mm_loadu_ps(reinterpret_cast<const float *>(input+i+2));
+
+        //convert and scale
+        __m128i tmpilo = _mm_cvtps_epi32(_mm_mul_ps(tmplo, scalar));
+        __m128i tmpihi = _mm_cvtps_epi32(_mm_mul_ps(tmphi, scalar));
+
+        //pack + swap 16-bit pairs
+        __m128i tmpi = _mm_packs_epi32(tmpilo, tmpihi);
+        tmpi = _mm_shufflelo_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1));
+        tmpi = _mm_shufflehi_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1));
+
+        //store to output
+        _mm_storeu_si128(reinterpret_cast<__m128i *>(output+i), tmpi);
+    }
+
+    //convert remainder
+    for (; i < nsamps; i++){
+        output[i] = fc32_to_item32(input[i]);
+    }
+}
+
+DECLARE_CONVERTER(convert_fc32_1_to_item32_1_bswap, PRIORITY_CUSTOM){
+    const fc32_t *input = reinterpret_cast<const fc32_t *>(inputs[0]);
+    item32_t *output = reinterpret_cast<item32_t *>(outputs[0]);
+
+    __m128 scalar = _mm_set_ps1(shorts_per_float);
+
+    //convert blocks of samples with intrinsics
+    size_t i = 0; for (; i < (nsamps & ~0x3); i+=4){
+        //load from input
+        __m128 tmplo = _mm_loadu_ps(reinterpret_cast<const float *>(input+i+0));
+        __m128 tmphi = _mm_loadu_ps(reinterpret_cast<const float *>(input+i+2));
+
+        //convert and scale
+        __m128i tmpilo = _mm_cvtps_epi32(_mm_mul_ps(tmplo, scalar));
+        __m128i tmpihi = _mm_cvtps_epi32(_mm_mul_ps(tmphi, scalar));
+
+        //pack + byteswap -> byteswap 16 bit words
+        __m128i tmpi = _mm_packs_epi32(tmpilo, tmpihi);
+        tmpi = _mm_or_si128(_mm_srli_epi16(tmpi, 8), _mm_slli_epi16(tmpi, 8));
+
+        //store to output
+        _mm_storeu_si128(reinterpret_cast<__m128i *>(output+i), tmpi);
+    }
+
+    //convert remainder
+    for (; i < nsamps; i++){
+        output[i] = uhd::byteswap(fc32_to_item32(input[i]));
+    }
+}
+
+DECLARE_CONVERTER(convert_item32_1_to_fc32_1_nswap, PRIORITY_CUSTOM){
+    const item32_t *input = reinterpret_cast<const item32_t *>(inputs[0]);
+    fc32_t *output = reinterpret_cast<fc32_t *>(outputs[0]);
+
+    __m128 scalar = _mm_set_ps1(floats_per_short/(1 << 16));
+    __m128i zeroi = _mm_setzero_si128();
+
+    //convert blocks of samples with intrinsics
+    size_t i = 0; for (; i < (nsamps & ~0x3); i+=4){
+        //load from input
+        __m128i tmpi = _mm_loadu_si128(reinterpret_cast<const __m128i *>(input+i));
+
+        //unpack + swap 16-bit pairs
+        tmpi = _mm_shufflelo_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1));
+        tmpi = _mm_shufflehi_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1));
+        __m128i tmpilo = _mm_unpacklo_epi16(zeroi, tmpi); //value in upper 16 bits
+        __m128i tmpihi = _mm_unpackhi_epi16(zeroi, tmpi);
+
+        //convert and scale
+        __m128 tmplo = _mm_mul_ps(_mm_cvtepi32_ps(tmpilo), scalar);
+        __m128 tmphi = _mm_mul_ps(_mm_cvtepi32_ps(tmpihi), scalar);
+
+        //store to output
+        _mm_storeu_ps(reinterpret_cast<float *>(output+i+0), tmplo);
+        _mm_storeu_ps(reinterpret_cast<float *>(output+i+2), tmphi);
+    }
+
+    //convert remainder
+    for (; i < nsamps; i++){
+        output[i] = item32_to_fc32(input[i]);
+    }
+}
+
+DECLARE_CONVERTER(convert_item32_1_to_fc32_1_bswap, PRIORITY_CUSTOM){
+    const item32_t *input = reinterpret_cast<const item32_t *>(inputs[0]);
+    fc32_t *output = reinterpret_cast<fc32_t *>(outputs[0]);
+
+    __m128 scalar = _mm_set_ps1(floats_per_short/(1 << 16));
+    __m128i zeroi = _mm_setzero_si128();
+
+    //convert blocks of samples with intrinsics
+    size_t i = 0; for (; i < (nsamps & ~0x3); i+=4){
+        //load from input
+        __m128i tmpi = _mm_loadu_si128(reinterpret_cast<const __m128i *>(input+i));
+
+        //byteswap + unpack -> byteswap 16 bit words
+        tmpi = _mm_or_si128(_mm_srli_epi16(tmpi, 8), _mm_slli_epi16(tmpi, 8));
+        __m128i tmpilo = _mm_unpacklo_epi16(zeroi, tmpi); //value in upper 16 bits
+        __m128i tmpihi = _mm_unpackhi_epi16(zeroi, tmpi);
+
+        //convert and scale
+        __m128 tmplo = _mm_mul_ps(_mm_cvtepi32_ps(tmpilo), scalar);
+        __m128 tmphi = _mm_mul_ps(_mm_cvtepi32_ps(tmpihi), scalar);
+
+        //store to output
+        _mm_storeu_ps(reinterpret_cast<float *>(output+i+0), tmplo);
+        _mm_storeu_ps(reinterpret_cast<float *>(output+i+2), tmphi);
+    }
+
+    //convert remainder
+    for (; i < nsamps; i++){
+        output[i] = item32_to_fc32(uhd::byteswap(input[i]));
+    }
+}
diff --git a/host/lib/convert/gen_convert_general.py b/host/lib/convert/gen_convert_general.py
new file mode 100644
index 000000000..47c4cd7d0
--- /dev/null
+++ b/host/lib/convert/gen_convert_general.py
@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+#
+# Copyright 2011 Ettus Research LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+TMPL_HEADER = """
+#import time
+/***********************************************************************
+ * This file was generated by $file on $time.strftime("%c")
+ **********************************************************************/
+
+\#include "convert_common.hpp"
+\#include <uhd/utils/byteswap.hpp>
+
+using namespace uhd::convert;
+"""
+
+TMPL_CONV_TO_FROM_ITEM32_1 = """
+DECLARE_CONVERTER(convert_$(cpu_type)_1_to_item32_1_$(swap), PRIORITY_GENERAL){
+    const $(cpu_type)_t *input = reinterpret_cast<const $(cpu_type)_t *>(inputs[0]);
+    item32_t *output = reinterpret_cast<item32_t *>(outputs[0]);
+
+    for (size_t i = 0; i < nsamps; i++){
+        output[i] = $(swap_fcn)($(cpu_type)_to_item32(input[i]));
+    }
+}
+
+DECLARE_CONVERTER(convert_item32_1_to_$(cpu_type)_1_$(swap), PRIORITY_GENERAL){
+    const item32_t *input = reinterpret_cast<const item32_t *>(inputs[0]);
+    $(cpu_type)_t *output = reinterpret_cast<$(cpu_type)_t *>(outputs[0]);
+
+    for (size_t i = 0; i < nsamps; i++){
+        output[i] = item32_to_$(cpu_type)($(swap_fcn)(input[i]));
+    }
+}
+"""
+TMPL_CONV_TO_FROM_ITEM32_X = """
+DECLARE_CONVERTER(convert_$(cpu_type)_$(width)_to_item32_1_$(swap), PRIORITY_GENERAL){
+    #for $w in range($width)
+    const $(cpu_type)_t *input$(w) = reinterpret_cast<const $(cpu_type)_t *>(inputs[$(w)]);
+    #end for
+    item32_t *output = reinterpret_cast<item32_t *>(outputs[0]);
+
+    for (size_t i = 0, j = 0; i < nsamps; i++){
+        #for $w in range($width)
+        output[j++] = $(swap_fcn)($(cpu_type)_to_item32(input$(w)[i]));
+        #end for
+    }
+}
+
+DECLARE_CONVERTER(convert_item32_1_to_$(cpu_type)_$(width)_$(swap), PRIORITY_GENERAL){
+    const item32_t *input = reinterpret_cast<const item32_t *>(inputs[0]);
+    #for $w in range($width)
+    $(cpu_type)_t *output$(w) = reinterpret_cast<$(cpu_type)_t *>(outputs[$(w)]);
+    #end for
+
+    for (size_t i = 0, j = 0; i < nsamps; i++){
+        #for $w in range($width)
+        output$(w)[i] = item32_to_$(cpu_type)($(swap_fcn)(input[j++]));
+        #end for
+    }
+}
+"""
+
+def parse_tmpl(_tmpl_text, **kwargs):
+    from Cheetah.Template import Template
+    return str(Template(_tmpl_text, kwargs))
+
+if __name__ == '__main__':
+    import sys, os
+    file = os.path.basename(__file__)
+    output = parse_tmpl(TMPL_HEADER, file=file)
+    for width in 1, 2, 3, 4:
+        for swap, swap_fcn in (('nswap', ''), ('bswap', 'uhd::byteswap')):
+            for cpu_type in 'fc32', 'sc16':
+                output += parse_tmpl(
+                    TMPL_CONV_TO_FROM_ITEM32_1 if width == 1 else TMPL_CONV_TO_FROM_ITEM32_X,
+                    width=width, swap=swap, swap_fcn=swap_fcn, cpu_type=cpu_type
+                )
+    open(sys.argv[1], 'w').write(output)
diff --git a/host/lib/convert/gen_convert_pred.py b/host/lib/convert/gen_convert_pred.py
new file mode 100644
index 000000000..1d573bf1a
--- /dev/null
+++ b/host/lib/convert/gen_convert_pred.py
@@ -0,0 +1,163 @@
+#!/usr/bin/env python
+#
+# Copyright 2011-2011 Ettus Research LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+TMPL_TEXT = """
+#import time
+/***********************************************************************
+ * This file was generated by $file on $time.strftime("%c")
+ **********************************************************************/
+typedef size_t pred_type;
+
+\#include <boost/tokenizer.hpp>
+\#include <boost/lexical_cast.hpp>
+\#include <boost/detail/endian.hpp>
+\#include <boost/cstdint.hpp>
+\#include <stdexcept>
+\#include <string>
+\#include <vector>
+
+enum dir_type{
+    DIR_OTW_TO_CPU = 0,
+    DIR_CPU_TO_OTW = 1
+};
+
+struct pred_error : std::runtime_error{
+    pred_error(const std::string &what)
+    :std::runtime_error("convert::make_pred: " + what){
+        /* NOP */
+    }
+};
+
+pred_type make_pred(const std::string &markup, dir_type &dir){
+    pred_type pred = 0;
+
+    try{
+        boost::tokenizer<boost::char_separator<char> > tokenizer(markup, boost::char_separator<char>("_"));
+        std::vector<std::string> tokens(tokenizer.begin(), tokenizer.end());
+        //token 0 is <convert>
+        std::string inp_type = tokens.at(1);
+        std::string num_inps = tokens.at(2);
+        //token 3 is <to>
+        std::string out_type = tokens.at(4);
+        std::string num_outs = tokens.at(5);
+        std::string swap_type = tokens.at(6);
+
+        std::string cpu_type, otw_type;
+        if (inp_type.find("item") == std::string::npos){
+            cpu_type = inp_type;
+            otw_type = out_type;
+            dir = DIR_CPU_TO_OTW;
+        }
+        else{
+            cpu_type = out_type;
+            otw_type = inp_type;
+            dir = DIR_OTW_TO_CPU;
+        }
+
+        if      (cpu_type == "fc32") pred |= $ph.fc32_p;
+        else if (cpu_type == "sc16") pred |= $ph.sc16_p;
+        else throw pred_error("unhandled io type " + cpu_type);
+
+        if (otw_type == "item32") pred |= $ph.item32_p;
+        else throw pred_error("unhandled otw type " + otw_type);
+
+        int num_inputs = boost::lexical_cast<int>(num_inps);
+        int num_outputs = boost::lexical_cast<int>(num_outs);
+
+        switch(num_inputs*num_outputs){ //FIXME treated as one value
+        case 1: pred |= $ph.chan1_p; break;
+        case 2: pred |= $ph.chan2_p; break;
+        case 3: pred |= $ph.chan3_p; break;
+        case 4: pred |= $ph.chan4_p; break;
+        default: throw pred_error("unhandled number of channels");
+        }
+
+        if      (swap_type == "bswap") pred |= $ph.bswap_p;
+        else if (swap_type == "nswap") pred |= $ph.nswap_p;
+        else throw pred_error("unhandled swap type");
+
+    }
+    catch(...){
+        throw pred_error("could not parse markup: " + markup);
+    }
+
+    return pred;
+}
+
+UHD_INLINE pred_type make_pred(
+    const io_type_t &io_type,
+    const otw_type_t &otw_type,
+    size_t num_inputs,
+    size_t num_outputs
+){
+    pred_type pred = 0;
+
+    switch(otw_type.byteorder){
+    \#ifdef BOOST_BIG_ENDIAN
+    case otw_type_t::BO_BIG_ENDIAN:    pred |= $ph.nswap_p; break;
+    case otw_type_t::BO_LITTLE_ENDIAN: pred |= $ph.bswap_p; break;
+    \#else
+    case otw_type_t::BO_BIG_ENDIAN:    pred |= $ph.bswap_p; break;
+    case otw_type_t::BO_LITTLE_ENDIAN: pred |= $ph.nswap_p; break;
+    \#endif
+    case otw_type_t::BO_NATIVE:        pred |= $ph.nswap_p; break;
+    default: throw pred_error("unhandled otw byteorder type");
+    }
+
+    switch(otw_type.get_sample_size()){
+    case sizeof(boost::uint32_t): pred |= $ph.item32_p; break;
+    default: throw pred_error("unhandled otw sample size");
+    }
+
+    switch(io_type.tid){
+    case io_type_t::COMPLEX_FLOAT32: pred |= $ph.fc32_p; break;
+    case io_type_t::COMPLEX_INT16:   pred |= $ph.sc16_p; break;
+    default: throw pred_error("unhandled io type id");
+    }
+
+    switch(num_inputs*num_outputs){ //FIXME treated as one value
+    case 1: pred |= $ph.chan1_p; break;
+    case 2: pred |= $ph.chan2_p; break;
+    case 3: pred |= $ph.chan3_p; break;
+    case 4: pred |= $ph.chan4_p; break;
+    default: throw pred_error("unhandled number of channels");
+    }
+
+    return pred;
+}
+"""
+
+def parse_tmpl(_tmpl_text, **kwargs):
+    from Cheetah.Template import Template
+    return str(Template(_tmpl_text, kwargs))
+
+class ph:
+    bswap_p  = 0b00001
+    nswap_p  = 0b00000
+    item32_p = 0b00000
+    sc16_p   = 0b00010
+    fc32_p   = 0b00000
+    chan1_p  = 0b00000
+    chan2_p  = 0b00100
+    chan3_p  = 0b01000
+    chan4_p  = 0b01100
+
+if __name__ == '__main__':
+    import sys, os
+    file = os.path.basename(__file__)
+    open(sys.argv[1], 'w').write(parse_tmpl(TMPL_TEXT, file=file, ph=ph))
diff --git a/host/lib/gain_group.cpp b/host/lib/gain_group.cpp
deleted file mode 100644
index 1be09dee2..000000000
--- a/host/lib/gain_group.cpp
+++ /dev/null
@@ -1,149 +0,0 @@
-//
-// Copyright 2010 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-
-#include <uhd/utils/gain_group.hpp>
-#include <uhd/types/dict.hpp>
-#include <uhd/utils/algorithm.hpp>
-#include <uhd/utils/assert.hpp>
-#include <boost/foreach.hpp>
-#include <boost/bind.hpp>
-#include <algorithm>
-#include <vector>
-#include <iostream>
-
-using namespace uhd;
-
-static const bool verbose = false;
-
-static bool compare_by_step_size(
-    const size_t &rhs, const size_t &lhs, std::vector<gain_fcns_t> &fcns
-){
-    return fcns.at(rhs).get_range().step > fcns.at(lhs).get_range().step;
-}
-
-/***********************************************************************
- * gain group implementation
- **********************************************************************/
-class gain_group_impl : public gain_group{
-public:
-    gain_group_impl(void){
-        /*NOP*/
-    }
-
-    gain_range_t get_range(void){
-        float overall_min = 0, overall_max = 0, overall_step = 0;
-        BOOST_FOREACH(const gain_fcns_t &fcns, get_all_fcns()){
-            const gain_range_t range = fcns.get_range();
-            overall_min += range.min;
-            overall_max += range.max;
-            //the overall step is the min (zero is invalid, first run)
-            if (overall_step == 0) overall_step = range.step;
-            overall_step = std::min(overall_step, range.step);
-        }
-        return gain_range_t(overall_min, overall_max, overall_step);
-    }
-
-    float get_value(void){
-        float overall_gain = 0;
-        BOOST_FOREACH(const gain_fcns_t &fcns, get_all_fcns()){
-            overall_gain += fcns.get_value();
-        }
-        return overall_gain;
-    }
-
-    void set_value(float gain){
-        std::vector<gain_fcns_t> all_fcns = get_all_fcns();
-        if (all_fcns.size() == 0) return; //nothing to set!
-
-        //get the max step size among the gains
-        float max_step = 0;
-        BOOST_FOREACH(const gain_fcns_t &fcns, all_fcns){
-            max_step = std::max(max_step, fcns.get_range().step);
-        }
-
-        //create gain bucket to distribute power
-        std::vector<float> gain_bucket;
-
-        //distribute power according to priority (round to max step)
-        float gain_left_to_distribute = gain;
-        BOOST_FOREACH(const gain_fcns_t &fcns, all_fcns){
-            const gain_range_t range = fcns.get_range();
-            gain_bucket.push_back(
-                max_step*int(std::clip(gain_left_to_distribute, range.min, range.max)/max_step)
-            );
-            gain_left_to_distribute -= gain_bucket.back();
-        }
-
-        //get a list of indexes sorted by step size large to small
-        std::vector<size_t> indexes_step_size_dec;
-        for (size_t i = 0; i < all_fcns.size(); i++){
-            indexes_step_size_dec.push_back(i);
-        }
-        std::sort(
-            indexes_step_size_dec.begin(), indexes_step_size_dec.end(),
-            boost::bind(&compare_by_step_size, _1, _2, all_fcns)
-        );
-        UHD_ASSERT_THROW(
-            all_fcns.at(indexes_step_size_dec.front()).get_range().step >=
-            all_fcns.at(indexes_step_size_dec.back()).get_range().step
-        );
-
-        //distribute the remainder (less than max step)
-        //fill in the largest step sizes first that are less than the remainder
-        BOOST_FOREACH(size_t i, indexes_step_size_dec){
-            const gain_range_t range = all_fcns.at(i).get_range();
-            float additional_gain = range.step*int(
-                std::clip(gain_bucket.at(i) + gain_left_to_distribute, range.min, range.max
-            )/range.step) - gain_bucket.at(i);
-            gain_bucket.at(i) += additional_gain;
-            gain_left_to_distribute -= additional_gain;
-        }
-        if (verbose) std::cout << "gain_left_to_distribute " << gain_left_to_distribute << std::endl;
-
-        //now write the bucket out to the individual gain values
-        for (size_t i = 0; i < gain_bucket.size(); i++){
-            if (verbose) std::cout << gain_bucket.at(i) << std::endl;
-            all_fcns.at(i).set_value(gain_bucket.at(i));
-        }
-    }
-
-    void register_fcns(
-        const gain_fcns_t &gain_fcns, size_t priority
-    ){
-        _registry[priority].push_back(gain_fcns);
-    }
-
-private:
-    //! get the gain function sets in order (highest priority first)
-    std::vector<gain_fcns_t> get_all_fcns(void){
-        std::vector<gain_fcns_t> all_fcns;
-        BOOST_FOREACH(ssize_t key, std::sorted(_registry.keys())){
-            const std::vector<gain_fcns_t> &fcns = _registry[key];
-            all_fcns.insert(all_fcns.begin(), fcns.begin(), fcns.end());
-        }
-        return all_fcns;
-    }
-
-    uhd::dict<size_t, std::vector<gain_fcns_t> > _registry;
-};
-
-/***********************************************************************
- * gain group factory function
- **********************************************************************/
-gain_group::sptr gain_group::make(void){
-    return sptr(new gain_group_impl());
-}
diff --git a/host/lib/transport/CMakeLists.txt b/host/lib/transport/CMakeLists.txt
index 0d6226e4c..8765c6703 100644
--- a/host/lib/transport/CMakeLists.txt
+++ b/host/lib/transport/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -23,7 +23,7 @@
 # Setup libusb
 ########################################################################
 MESSAGE(STATUS "")
-FIND_PACKAGE(USB1 REQUIRED)
+FIND_PACKAGE(USB1)
 
 LIBUHD_REGISTER_COMPONENT("USB" ENABLE_USB ON "ENABLE_LIBUHD;LIBUSB_FOUND" OFF)
 
@@ -37,9 +37,6 @@ IF(ENABLE_USB)
         ${CMAKE_CURRENT_SOURCE_DIR}/libusb1_base.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/libusb1_base.hpp
     )
-    IF(MSVC) #include our custom stdint for libusb
-        INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/msvc)
-    ENDIF(MSVC)
 ELSE(ENABLE_USB)
     LIBUHD_APPEND_SOURCES(
         ${CMAKE_CURRENT_SOURCE_DIR}/usb_dummy_impl.cpp
@@ -47,25 +44,6 @@ ELSE(ENABLE_USB)
 ENDIF(ENABLE_USB)
 
 ########################################################################
-# Check for SIMD headers
-########################################################################
-MESSAGE(STATUS "")
-
-INCLUDE(CheckIncludeFileCXX)
-CHECK_INCLUDE_FILE_CXX(emmintrin.h HAVE_EMMINTRIN_H)
-
-IF(HAVE_EMMINTRIN_H)
-    ADD_DEFINITIONS(-DHAVE_EMMINTRIN_H)
-ENDIF(HAVE_EMMINTRIN_H)
-
-INCLUDE(CheckIncludeFileCXX)
-CHECK_INCLUDE_FILE_CXX(arm_neon.h HAVE_ARM_NEON_H)
-
-IF(HAVE_ARM_NEON_H)
-    ADD_DEFINITIONS(-DHAVE_ARM_NEON_H)
-ENDIF(HAVE_ARM_NEON_H)
-
-########################################################################
 # Setup defines for interface address discovery
 ########################################################################
 MESSAGE(STATUS "")
@@ -93,22 +71,8 @@ LIBUHD_PYTHON_GEN_SOURCE(
     ${CMAKE_CURRENT_BINARY_DIR}/vrt_if_packet.cpp
 )
 
-LIBUHD_PYTHON_GEN_SOURCE(
-    ${CMAKE_CURRENT_SOURCE_DIR}/gen_convert_types.py
-    ${CMAKE_CURRENT_BINARY_DIR}/convert_types.cpp
-)
-
-# append this directory to the include path so the generated convert types
-# can include the implementation convert types file in the source directory
-INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
-
-# make the generated convert types depend on the implementation header
-SET_SOURCE_FILES_PROPERTIES(
-    ${CMAKE_CURRENT_BINARY_DIR}/convert_types.cpp PROPERTIES
-    OBJECT_DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/convert_types_impl.hpp
-)
-
 LIBUHD_APPEND_SOURCES(
+    ${CMAKE_CURRENT_SOURCE_DIR}/buffer_pool.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/if_addrs.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/udp_simple.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/udp_zero_copy_asio.cpp
diff --git a/host/lib/transport/buffer_pool.cpp b/host/lib/transport/buffer_pool.cpp
new file mode 100644
index 000000000..971bbb75a
--- /dev/null
+++ b/host/lib/transport/buffer_pool.cpp
@@ -0,0 +1,80 @@
+//
+// Copyright 2011-2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/transport/buffer_pool.hpp>
+#include <boost/shared_array.hpp>
+#include <vector>
+
+using namespace uhd::transport;
+
+//! pad the byte count to a multiple of alignment
+static size_t pad_to_boundary(const size_t bytes, const size_t alignment){
+    return bytes + (alignment - bytes)%alignment;
+}
+
+/***********************************************************************
+ * Buffer pool implementation
+ **********************************************************************/
+class buffer_pool_impl : public buffer_pool{
+public:
+    buffer_pool_impl(
+        const std::vector<ptr_type> &ptrs,
+        boost::shared_array<char> mem
+    ): _ptrs(ptrs), _mem(mem){
+        /* NOP */
+    }
+
+    ptr_type at(const size_t index) const{
+        return _ptrs.at(index);
+    }
+
+    size_t size(void) const{
+        return _ptrs.size();
+    }
+
+private:
+    std::vector<ptr_type> _ptrs;
+    boost::shared_array<char> _mem;
+};
+
+/***********************************************************************
+ * Buffer pool factor function
+ **********************************************************************/
+buffer_pool::sptr buffer_pool::make(
+    const size_t num_buffs,
+    const size_t buff_size,
+    const size_t alignment
+){
+    //1) pad the buffer size to be a multiple of alignment
+    //2) pad the overall memory size for room after alignment
+    //3) allocate the memory in one block of sufficient size
+    const size_t padded_buff_size = pad_to_boundary(buff_size, alignment);
+    boost::shared_array<char> mem(new char[padded_buff_size*num_buffs + alignment-1]);
+
+    //Fill a vector with boundary-aligned points in the memory
+    const size_t mem_start = pad_to_boundary(size_t(mem.get()), alignment);
+    std::vector<ptr_type> ptrs(num_buffs);
+    for (size_t i = 0; i < num_buffs; i++){
+        ptrs[i] = ptr_type(mem_start + padded_buff_size*i);
+    }
+
+    //Create a new buffer pool implementation with:
+    // - the pre-computed pointers, and
+    // - the reference to allocated memory.
+    return sptr(new buffer_pool_impl(ptrs, mem));
+}
+
diff --git a/host/lib/transport/convert_types_impl.hpp b/host/lib/transport/convert_types_impl.hpp
deleted file mode 100644
index 48ff99725..000000000
--- a/host/lib/transport/convert_types_impl.hpp
+++ /dev/null
@@ -1,345 +0,0 @@
-//
-// Copyright 2010 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-
-#ifndef INCLUDED_LIBUHD_TRANSPORT_CONVERT_TYPES_IMPL_HPP
-#define INCLUDED_LIBUHD_TRANSPORT_CONVERT_TYPES_IMPL_HPP
-
-#include <uhd/config.hpp>
-#include <uhd/utils/byteswap.hpp>
-#include <boost/cstdint.hpp>
-#include <cstring>
-#include <complex>
-
-#ifdef HAVE_EMMINTRIN_H
-    #define USE_EMMINTRIN_H //use sse2 intrinsics
-#endif
-
-#if defined(USE_EMMINTRIN_H)
-    #include <emmintrin.h>
-#endif
-
-#ifdef HAVE_ARM_NEON_H
-    #define USE_ARM_NEON_H
-#endif
-
-#if defined(USE_ARM_NEON_H)
-    #include <arm_neon.h>
-#endif
-
-/***********************************************************************
- * Typedefs
- **********************************************************************/
-typedef std::complex<float>          fc32_t;
-typedef std::complex<boost::int16_t> sc16_t;
-typedef boost::uint32_t              item32_t;
-
-/***********************************************************************
- * Convert complex short buffer to items32
- **********************************************************************/
-static UHD_INLINE item32_t sc16_to_item32(sc16_t num){
-    boost::uint16_t real = num.real();
-    boost::uint16_t imag = num.imag();
-    return (item32_t(real) << 16) | (item32_t(imag) << 0);
-}
-
-static UHD_INLINE void sc16_to_item32_nswap(
-    const sc16_t *input, item32_t *output, size_t nsamps
-){
-    for (size_t i = 0; i < nsamps; i++){
-        output[i] = sc16_to_item32(input[i]);
-    }
-}
-
-static UHD_INLINE void sc16_to_item32_bswap(
-    const sc16_t *input, item32_t *output, size_t nsamps
-){
-    for (size_t i = 0; i < nsamps; i++){
-        output[i] = uhd::byteswap(sc16_to_item32(input[i]));
-    }
-}
-
-/***********************************************************************
- * Convert items32 buffer to complex short
- **********************************************************************/
-static UHD_INLINE sc16_t item32_to_sc16(item32_t item){
-    return sc16_t(
-        boost::int16_t(item >> 16),
-        boost::int16_t(item >> 0)
-    );
-}
-
-static UHD_INLINE void item32_to_sc16_nswap(
-    const item32_t *input, sc16_t *output, size_t nsamps
-){
-    for (size_t i = 0; i < nsamps; i++){
-        output[i] = item32_to_sc16(input[i]);
-    }
-}
-
-static UHD_INLINE void item32_to_sc16_bswap(
-    const item32_t *input, sc16_t *output, size_t nsamps
-){
-    for (size_t i = 0; i < nsamps; i++){
-        output[i] = item32_to_sc16(uhd::byteswap(input[i]));
-    }
-}
-
-/***********************************************************************
- * Convert complex float buffer to items32 (no swap)
- **********************************************************************/
-static const float shorts_per_float = float(32767);
-
-static UHD_INLINE item32_t fc32_to_item32(fc32_t num){
-    boost::uint16_t real = boost::int16_t(num.real()*shorts_per_float);
-    boost::uint16_t imag = boost::int16_t(num.imag()*shorts_per_float);
-    return (item32_t(real) << 16) | (item32_t(imag) << 0);
-}
-
-////////////////////////////////////
-// none-swap
-////////////////////////////////////
-#if defined(USE_EMMINTRIN_H)
-static UHD_INLINE void fc32_to_item32_nswap(
-    const fc32_t *input, item32_t *output, size_t nsamps
-){
-    __m128 scalar = _mm_set_ps1(shorts_per_float);
-
-    //convert blocks of samples with intrinsics
-    size_t i = 0; for (; i < (nsamps & ~0x3); i+=4){
-        //load from input
-        __m128 tmplo = _mm_loadu_ps(reinterpret_cast<const float *>(input+i+0));
-        __m128 tmphi = _mm_loadu_ps(reinterpret_cast<const float *>(input+i+2));
-
-        //convert and scale
-        __m128i tmpilo = _mm_cvtps_epi32(_mm_mul_ps(tmplo, scalar));
-        __m128i tmpihi = _mm_cvtps_epi32(_mm_mul_ps(tmphi, scalar));
-
-        //pack + swap 16-bit pairs
-        __m128i tmpi = _mm_packs_epi32(tmpilo, tmpihi);
-        tmpi = _mm_shufflelo_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1));
-        tmpi = _mm_shufflehi_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1));
-
-        //store to output
-        _mm_storeu_si128(reinterpret_cast<__m128i *>(output+i), tmpi);
-    }
-
-    //convert remainder
-    for (; i < nsamps; i++){
-        output[i] = fc32_to_item32(input[i]);
-    }
-}
-
-#elif defined(USE_ARM_NEON_H)
-static UHD_INLINE void fc32_to_item32_nswap(
-    const fc32_t *input, item32_t *output, size_t nsamps)
-{
-    size_t i;
-
-    float32x4_t Q0 = vdupq_n_f32(shorts_per_float);
-    for (i=0; i < (nsamps & ~0x03); i+=2) {
-        float32x4_t Q1 = vld1q_f32(reinterpret_cast<const float *>(&input[i]));
-        float32x4_t Q2 = vmulq_f32(Q1, Q0);
-        int32x4_t Q3 = vcvtq_s32_f32(Q2);
-        int16x4_t D8 = vmovn_s32(Q3);
-        int16x4_t D9 = vrev32_s16(D8);
-        vst1_s16((reinterpret_cast<int16_t *>(&output[i])), D9);
-    }
-
-    for (; i < nsamps; i++)
-        output[i] = fc32_to_item32(input[i]);
-}
-
-#else
-static UHD_INLINE void fc32_to_item32_nswap(
-    const fc32_t *input, item32_t *output, size_t nsamps
-){
-    for (size_t i = 0; i < nsamps; i++){
-        output[i] = fc32_to_item32(input[i]);
-    }
-}
-
-#endif
-
-////////////////////////////////////
-// byte-swap
-////////////////////////////////////
-#if defined(USE_EMMINTRIN_H)
-static UHD_INLINE void fc32_to_item32_bswap(
-    const fc32_t *input, item32_t *output, size_t nsamps
-){
-    __m128 scalar = _mm_set_ps1(shorts_per_float);
-
-    //convert blocks of samples with intrinsics
-    size_t i = 0; for (; i < (nsamps & ~0x3); i+=4){
-        //load from input
-        __m128 tmplo = _mm_loadu_ps(reinterpret_cast<const float *>(input+i+0));
-        __m128 tmphi = _mm_loadu_ps(reinterpret_cast<const float *>(input+i+2));
-
-        //convert and scale
-        __m128i tmpilo = _mm_cvtps_epi32(_mm_mul_ps(tmplo, scalar));
-        __m128i tmpihi = _mm_cvtps_epi32(_mm_mul_ps(tmphi, scalar));
-
-        //pack + byteswap -> byteswap 16 bit words
-        __m128i tmpi = _mm_packs_epi32(tmpilo, tmpihi);
-        tmpi = _mm_or_si128(_mm_srli_epi16(tmpi, 8), _mm_slli_epi16(tmpi, 8));
-
-        //store to output
-        _mm_storeu_si128(reinterpret_cast<__m128i *>(output+i), tmpi);
-    }
-
-    //convert remainder
-    for (; i < nsamps; i++){
-        output[i] = uhd::byteswap(fc32_to_item32(input[i]));
-    }
-}
-
-#else
-static UHD_INLINE void fc32_to_item32_bswap(
-    const fc32_t *input, item32_t *output, size_t nsamps
-){
-    for (size_t i = 0; i < nsamps; i++){
-        output[i] = uhd::byteswap(fc32_to_item32(input[i]));
-    }
-}
-
-#endif
-
-/***********************************************************************
- * Convert items32 buffer to complex float
- **********************************************************************/
-static const float floats_per_short = float(1.0/shorts_per_float);
-
-static UHD_INLINE fc32_t item32_to_fc32(item32_t item){
-    return fc32_t(
-        float(boost::int16_t(item >> 16)*floats_per_short),
-        float(boost::int16_t(item >> 0)*floats_per_short)
-    );
-}
-
-////////////////////////////////////
-// none-swap
-////////////////////////////////////
-#if defined(USE_EMMINTRIN_H)
-static UHD_INLINE void item32_to_fc32_nswap(
-    const item32_t *input, fc32_t *output, size_t nsamps
-){
-    __m128 scalar = _mm_set_ps1(floats_per_short/(1 << 16));
-    __m128i zeroi = _mm_setzero_si128();
-
-    //convert blocks of samples with intrinsics
-    size_t i = 0; for (; i < (nsamps & ~0x3); i+=4){
-        //load from input
-        __m128i tmpi = _mm_loadu_si128(reinterpret_cast<const __m128i *>(input+i));
-
-        //unpack + swap 16-bit pairs
-        tmpi = _mm_shufflelo_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1));
-        tmpi = _mm_shufflehi_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1));
-        __m128i tmpilo = _mm_unpacklo_epi16(zeroi, tmpi); //value in upper 16 bits
-        __m128i tmpihi = _mm_unpackhi_epi16(zeroi, tmpi);
-
-        //convert and scale
-        __m128 tmplo = _mm_mul_ps(_mm_cvtepi32_ps(tmpilo), scalar);
-        __m128 tmphi = _mm_mul_ps(_mm_cvtepi32_ps(tmpihi), scalar);
-
-        //store to output
-        _mm_storeu_ps(reinterpret_cast<float *>(output+i+0), tmplo);
-        _mm_storeu_ps(reinterpret_cast<float *>(output+i+2), tmphi);
-    }
-
-    //convert remainder
-    for (; i < nsamps; i++){
-        output[i] = item32_to_fc32(input[i]);
-    }
-}
-
-#elif defined(USE_ARM_NEON_H)
-static UHD_INLINE void item32_to_fc32_nswap(
-    const item32_t *input, fc32_t *output, size_t nsamps)
-{
-    size_t i;
-
-    float32x4_t Q1 = vdupq_n_f32(floats_per_short);
-    for (i=0; i < (nsamps & ~0x03); i+=2) {
-        int16x4_t D0 = vld1_s16(reinterpret_cast<const int16_t *>(&input[i]));
-        int16x4_t D1 = vrev32_s16(D0);
-        int32x4_t Q2 = vmovl_s16(D1);
-        float32x4_t Q3 = vcvtq_f32_s32(Q2);
-        float32x4_t Q4 = vmulq_f32(Q3, Q1);
-        vst1q_f32((reinterpret_cast<float *>(&output[i])), Q4);
-    }
-
-    for (; i < nsamps; i++)
-        output[i] = item32_to_fc32(input[i]);
-}
-
-#else
-static UHD_INLINE void item32_to_fc32_nswap(
-    const item32_t *input, fc32_t *output, size_t nsamps
-){
-    for (size_t i = 0; i < nsamps; i++){
-        output[i] = item32_to_fc32(input[i]);
-    }
-}
-#endif
-
-////////////////////////////////////
-// byte-swap
-////////////////////////////////////
-#if defined(USE_EMMINTRIN_H)
-static UHD_INLINE void item32_to_fc32_bswap(
-    const item32_t *input, fc32_t *output, size_t nsamps
-){
-    __m128 scalar = _mm_set_ps1(floats_per_short/(1 << 16));
-    __m128i zeroi = _mm_setzero_si128();
-
-    //convert blocks of samples with intrinsics
-    size_t i = 0; for (; i < (nsamps & ~0x3); i+=4){
-        //load from input
-        __m128i tmpi = _mm_loadu_si128(reinterpret_cast<const __m128i *>(input+i));
-
-        //byteswap + unpack -> byteswap 16 bit words
-        tmpi = _mm_or_si128(_mm_srli_epi16(tmpi, 8), _mm_slli_epi16(tmpi, 8));
-        __m128i tmpilo = _mm_unpacklo_epi16(zeroi, tmpi); //value in upper 16 bits
-        __m128i tmpihi = _mm_unpackhi_epi16(zeroi, tmpi);
-
-        //convert and scale
-        __m128 tmplo = _mm_mul_ps(_mm_cvtepi32_ps(tmpilo), scalar);
-        __m128 tmphi = _mm_mul_ps(_mm_cvtepi32_ps(tmpihi), scalar);
-
-        //store to output
-        _mm_storeu_ps(reinterpret_cast<float *>(output+i+0), tmplo);
-        _mm_storeu_ps(reinterpret_cast<float *>(output+i+2), tmphi);
-    }
-
-    //convert remainder
-    for (; i < nsamps; i++){
-        output[i] = item32_to_fc32(uhd::byteswap(input[i]));
-    }
-}
-
-#else
-static UHD_INLINE void item32_to_fc32_bswap(
-    const item32_t *input, fc32_t *output, size_t nsamps
-){
-    for (size_t i = 0; i < nsamps; i++){
-        output[i] = item32_to_fc32(uhd::byteswap(input[i]));
-    }
-}
-
-#endif
-
-#endif /* INCLUDED_LIBUHD_TRANSPORT_CONVERT_TYPES_IMPL_HPP */
diff --git a/host/lib/transport/gen_convert_types.py b/host/lib/transport/gen_convert_types.py
deleted file mode 100755
index f9509c81d..000000000
--- a/host/lib/transport/gen_convert_types.py
+++ /dev/null
@@ -1,211 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2010 Ettus Research LLC
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-
-TMPL_TEXT = """
-#import time
-/***********************************************************************
- * This file was generated by $file on $time.strftime("%c")
- **********************************************************************/
-
-\#include <uhd/config.hpp>
-\#include <uhd/transport/convert_types.hpp>
-\#include <boost/cstdint.hpp>
-\#include <boost/detail/endian.hpp>
-\#include <stdexcept>
-\#include "convert_types_impl.hpp"
-
-using namespace uhd;
-
-/***********************************************************************
- * Generate predicate for jump table
- **********************************************************************/
-UHD_INLINE boost::uint8_t get_pred(
-    const io_type_t &io_type,
-    const otw_type_t &otw_type,
-    size_t num_chans
-){
-    boost::uint8_t pred = 0;
-
-    switch(otw_type.byteorder){
-    \#ifdef BOOST_BIG_ENDIAN
-    case otw_type_t::BO_BIG_ENDIAN:    pred |= $ph.nswap_p; break;
-    case otw_type_t::BO_LITTLE_ENDIAN: pred |= $ph.bswap_p; break;
-    \#else
-    case otw_type_t::BO_BIG_ENDIAN:    pred |= $ph.bswap_p; break;
-    case otw_type_t::BO_LITTLE_ENDIAN: pred |= $ph.nswap_p; break;
-    \#endif
-    case otw_type_t::BO_NATIVE:        pred |= $ph.nswap_p; break;
-    default: throw std::runtime_error("unhandled otw byteorder type");
-    }
-
-    switch(otw_type.get_sample_size()){
-    case sizeof(boost::uint32_t): pred |= $ph.item32_p; break;
-    default: throw std::runtime_error("unhandled otw sample size");
-    }
-
-    switch(io_type.tid){
-    case io_type_t::COMPLEX_FLOAT32: pred |= $ph.fc32_p; break;
-    case io_type_t::COMPLEX_INT16:   pred |= $ph.sc16_p; break;
-    default: throw std::runtime_error("unhandled io type id");
-    }
-
-    switch(num_chans){
-    case 1: pred |= $ph.chan1_p; break;
-    case 2: pred |= $ph.chan2_p; break;
-    case 3: pred |= $ph.chan3_p; break;
-    case 4: pred |= $ph.chan4_p; break;
-    default: throw std::runtime_error("unhandled number of channels");
-    }
-
-    return pred;
-}
-
-/***********************************************************************
- * Convert host type to device type
- **********************************************************************/
-void transport::convert_io_type_to_otw_type(
-    const std::vector<const void *> &io_buffs,
-    const io_type_t &io_type,
-    void *otw_buff,
-    const otw_type_t &otw_type,
-    size_t nsamps_per_io_buff
-){
-    switch(get_pred(io_type, otw_type, io_buffs.size())){
-    #for $pred in range(2**$ph.nbits)
-    case $pred:
-        #set $out_type = $ph.get_dev_type($pred)
-        #set $in_type = $ph.get_host_type($pred)
-        #set $num_chans = $ph.get_num_chans($pred)
-        #set $converter = '_'.join([$in_type, 'to', $out_type])
-        #if $num_chans == 1
-        $(converter)_$ph.get_swap_type($pred)(
-            reinterpret_cast<const $(in_type)_t *>(io_buffs.front()),
-            reinterpret_cast<$(out_type)_t *>(otw_buff),
-            nsamps_per_io_buff
-        );
-        #else
-        for (size_t i = 0, j = 0; i < nsamps_per_io_buff; i++){
-            #for $j in range($num_chans)
-            reinterpret_cast<$(out_type)_t *>(otw_buff)[j++] =
-                #if $ph.get_swap_type($pred) == 'bswap'
-                uhd::byteswap($(converter)(reinterpret_cast<const $(in_type)_t *>(io_buffs[$j])[i]));
-                #else
-                $(converter)(reinterpret_cast<const $(in_type)_t *>(io_buffs[$j])[i]);
-                #end if
-            #end for
-        }
-        #end if
-        break;
-    #end for
-    }
-}
-
-/***********************************************************************
- * Convert device type to host type
- **********************************************************************/
-void transport::convert_otw_type_to_io_type(
-    const void *otw_buff,
-    const otw_type_t &otw_type,
-    std::vector<void *> &io_buffs,
-    const io_type_t &io_type,
-    size_t nsamps_per_io_buff
-){
-    switch(get_pred(io_type, otw_type, io_buffs.size())){
-    #for $pred in range(2**$ph.nbits)
-    case $pred:
-        #set $out_type = $ph.get_host_type($pred)
-        #set $in_type = $ph.get_dev_type($pred)
-        #set $num_chans = $ph.get_num_chans($pred)
-        #set $converter = '_'.join([$in_type, 'to', $out_type])
-        #if $num_chans == 1
-        $(converter)_$ph.get_swap_type($pred)(
-            reinterpret_cast<const $(in_type)_t *>(otw_buff),
-            reinterpret_cast<$(out_type)_t *>(io_buffs.front()),
-            nsamps_per_io_buff
-        );
-        #else
-        for (size_t i = 0, j = 0; i < nsamps_per_io_buff; i++){
-            #for $j in range($num_chans)
-            reinterpret_cast<$(out_type)_t *>(io_buffs[$j])[i] =
-                #if $ph.get_swap_type($pred) == 'bswap'
-                $(converter)(uhd::byteswap(reinterpret_cast<const $(in_type)_t *>(otw_buff)[j++]));
-                #else
-                $(converter)(reinterpret_cast<const $(in_type)_t *>(otw_buff)[j++]);
-                #end if
-            #end for
-        }
-        #end if
-        break;
-    #end for
-    }
-}
-
-"""
-
-def parse_tmpl(_tmpl_text, **kwargs):
-    from Cheetah.Template import Template
-    return str(Template(_tmpl_text, kwargs))
-
-class ph:
-    bswap_p  = 0b00001
-    nswap_p  = 0b00000
-    item32_p = 0b00000
-    sc16_p   = 0b00010
-    fc32_p   = 0b00000
-    chan1_p  = 0b00000
-    chan2_p  = 0b00100
-    chan3_p  = 0b01000
-    chan4_p  = 0b01100
-
-    nbits = 4 #see above
-
-    @staticmethod
-    def has(pred, mask, flag): return (pred & mask) == flag
-
-    @staticmethod
-    def get_swap_type(pred):
-        mask = 0b1
-        if ph.has(pred, mask, ph.bswap_p): return 'bswap'
-        if ph.has(pred, mask, ph.nswap_p): return 'nswap'
-        raise NotImplementedError
-
-    @staticmethod
-    def get_dev_type(pred):
-        mask = 0b0
-        if ph.has(pred, mask, ph.item32_p): return 'item32'
-        raise NotImplementedError
-
-    @staticmethod
-    def get_host_type(pred):
-        mask = 0b10
-        if ph.has(pred, mask, ph.sc16_p): return 'sc16'
-        if ph.has(pred, mask, ph.fc32_p): return 'fc32'
-        raise NotImplementedError
-
-    @staticmethod
-    def get_num_chans(pred):
-        mask = 0b1100
-        if ph.has(pred, mask, ph.chan1_p): return 1
-        if ph.has(pred, mask, ph.chan2_p): return 2
-        if ph.has(pred, mask, ph.chan3_p): return 3
-        if ph.has(pred, mask, ph.chan4_p): return 4
-        raise NotImplementedError
-
-if __name__ == '__main__':
-    import sys
-    open(sys.argv[1], 'w').write(parse_tmpl(TMPL_TEXT, file=__file__, ph=ph))
diff --git a/host/lib/transport/libusb1_zero_copy.cpp b/host/lib/transport/libusb1_zero_copy.cpp
index f589d7c77..adc590284 100644
--- a/host/lib/transport/libusb1_zero_copy.cpp
+++ b/host/lib/transport/libusb1_zero_copy.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -18,9 +18,9 @@
 #include "libusb1_base.hpp"
 #include <uhd/transport/usb_zero_copy.hpp>
 #include <uhd/transport/bounded_buffer.hpp>
+#include <uhd/transport/buffer_pool.hpp>
 #include <uhd/utils/thread_priority.hpp>
 #include <uhd/utils/assert.hpp>
-#include <boost/shared_array.hpp>
 #include <boost/foreach.hpp>
 #include <boost/thread.hpp>
 #include <boost/enable_shared_from_this.hpp>
@@ -105,8 +105,8 @@ private:
     //! a list of all transfer structs we allocated
     std::vector<libusb_transfer *> _all_luts;
 
-    //! a block of memory for the transfer buffers
-    boost::shared_array<char> _buffer;
+    //! memory allocated for the transfer buffers
+    buffer_pool::sptr _buffer_pool;
 
     // Calls for processing asynchronous I/O
     libusb_transfer *allocate_transfer(void *mem, size_t len);
@@ -134,7 +134,6 @@ static void callback(libusb_transfer *lut){
  * \param pointer to libusb_transfer
  */
 void usb_endpoint::callback_handle_transfer(libusb_transfer *lut){
-    boost::this_thread::disable_interruption di; //disable because the wait can throw
     _completed_list->push_with_wait(lut);
 }
 
@@ -157,9 +156,9 @@ usb_endpoint::usb_endpoint(
     _input(input)
 {
     _completed_list = lut_buff_type::make(num_transfers);
-    _buffer = boost::shared_array<char>(new char[num_transfers*transfer_size]);
+    _buffer_pool = buffer_pool::make(num_transfers, transfer_size);
     for (size_t i = 0; i < num_transfers; i++){
-        _all_luts.push_back(allocate_transfer(_buffer.get() + i*transfer_size, transfer_size));
+        _all_luts.push_back(allocate_transfer(_buffer_pool->at(i), transfer_size));
 
         //input luts are immediately submitted to be filled
         //output luts go into the completed list as free buffers
@@ -272,7 +271,6 @@ void usb_endpoint::print_transfer_status(libusb_transfer *lut){
 }
 
 libusb_transfer *usb_endpoint::get_lut_with_wait(double timeout){
-    boost::this_thread::disable_interruption di; //disable because the wait can throw
     libusb_transfer *lut;
     if (_completed_list->pop_with_timed_wait(lut, timeout)) return lut;
     return NULL;
@@ -293,6 +291,7 @@ public:
 
     ~libusb_zero_copy_impl(void){
         _threads_running = false;
+        _thread_group.interrupt_all();
         _thread_group.join_all();
     }
 
@@ -333,12 +332,14 @@ private:
         set_thread_priority_safe();
         libusb::session::sptr session = libusb::session::get_global_session();
         _threads_running = true;
-        while(_threads_running){
-            timeval tv;
-            tv.tv_sec = 0;
-            tv.tv_usec = 100000; //100ms
-            libusb_handle_events_timeout(session->get_context(), &tv);
-        }
+        try{
+            while(_threads_running){
+                timeval tv;
+                tv.tv_sec = 0;
+                tv.tv_usec = 100000; //100ms
+                libusb_handle_events_timeout(session->get_context(), &tv);
+            }
+        } catch(const boost::thread_interrupted &){}
     }
 };
 
diff --git a/host/lib/transport/udp_zero_copy_asio.cpp b/host/lib/transport/udp_zero_copy_asio.cpp
index c758fa894..5c049cfad 100644
--- a/host/lib/transport/udp_zero_copy_asio.cpp
+++ b/host/lib/transport/udp_zero_copy_asio.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -18,10 +18,10 @@
 #include <uhd/transport/udp_zero_copy.hpp>
 #include <uhd/transport/udp_simple.hpp> //mtu
 #include <uhd/transport/bounded_buffer.hpp>
+#include <uhd/transport/buffer_pool.hpp>
 #include <uhd/utils/thread_priority.hpp>
 #include <uhd/utils/assert.hpp>
 #include <uhd/utils/warning.hpp>
-#include <boost/shared_array.hpp>
 #include <boost/asio.hpp>
 #include <boost/format.hpp>
 #include <boost/thread.hpp>
@@ -37,14 +37,15 @@ namespace asio = boost::asio;
  **********************************************************************/
 //Define this to the the boost async io calls to perform receive.
 //Otherwise, get_recv_buff uses a blocking receive with timeout.
-//#define USE_ASIO_ASYNC_RECV
+#define USE_ASIO_ASYNC_RECV
 
 //Define this to the the boost async io calls to perform send.
 //Otherwise, the commit callback uses a blocking send.
 //#define USE_ASIO_ASYNC_SEND
 
-//enough buffering for half a second of samples at full rate on usrp2
-static const size_t MIN_RECV_SOCK_BUFF_SIZE = size_t(4 * 25e6 * 0.5);
+//By default, this buffer is sized insufficiently small.
+//For peformance, this buffer should be 10s of megabytes.
+static const size_t MIN_RECV_SOCK_BUFF_SIZE = size_t(10e3);
 
 //Large buffers cause more underflow at high rates.
 //Perhaps this is due to the kernel scheduling,
@@ -123,16 +124,16 @@ public:
     void init(void){
         //allocate all recv frames and release them to begin xfers
         _pending_recv_buffs = pending_buffs_type::make(_num_recv_frames);
-        _recv_buffer = boost::shared_array<char>(new char[_num_recv_frames*_recv_frame_size]);
+        _recv_buffer_pool = buffer_pool::make(_num_recv_frames, _recv_frame_size);
         for (size_t i = 0; i < _num_recv_frames; i++){
-            release(_recv_buffer.get() + i*_recv_frame_size);
+            release(_recv_buffer_pool->at(i));
         }
 
         //allocate all send frames and push them into the fifo
         _pending_send_buffs = pending_buffs_type::make(_num_send_frames);
-        _send_buffer = boost::shared_array<char>(new char[_num_send_frames*_send_frame_size]);
+        _send_buffer_pool = buffer_pool::make(_num_send_frames, _send_frame_size);
         for (size_t i = 0; i < _num_send_frames; i++){
-            handle_send(_send_buffer.get() + i*_send_frame_size);
+            handle_send(_send_buffer_pool->at(i));
         }
 
         //spawn the service threads that will run the io service
@@ -302,7 +303,7 @@ public:
 private:
     //memory management -> buffers and fifos
     boost::thread_group _thread_group;
-    boost::shared_array<char> _send_buffer, _recv_buffer;
+    buffer_pool::sptr _send_buffer_pool, _recv_buffer_pool;
     typedef bounded_buffer<asio::mutable_buffer> pending_buffs_type;
     pending_buffs_type::sptr _pending_recv_buffs, _pending_send_buffs;
     const size_t _recv_frame_size, _num_recv_frames;
@@ -321,12 +322,13 @@ private:
  **********************************************************************/
 template<typename Opt> static void resize_buff_helper(
     udp_zero_copy_asio_impl::sptr udp_trans,
-    size_t target_size,
+    const size_t target_size,
     const std::string &name
 ){
     size_t min_sock_buff_size = 0;
     if (name == "recv") min_sock_buff_size = MIN_RECV_SOCK_BUFF_SIZE;
     if (name == "send") min_sock_buff_size = MIN_SEND_SOCK_BUFF_SIZE;
+    min_sock_buff_size = std::max(min_sock_buff_size, target_size);
 
     std::string help_message;
     #if defined(UHD_PLATFORM_LINUX)
@@ -347,7 +349,7 @@ template<typename Opt> static void resize_buff_helper(
         ) % name % actual_size << std::endl;
         if (actual_size < target_size) uhd::warning::post(str(boost::format(
             "The %s buffer is smaller than the requested size.\n"
-            "The minimum recommended buffer size is %d bytes.\n"
+            "The minimum requested buffer size is %d bytes.\n"
             "See the transport application notes on buffer resizing.\n%s"
         ) % name % min_sock_buff_size % help_message));
     }
diff --git a/host/lib/transport/vrt_packet_handler.hpp b/host/lib/transport/vrt_packet_handler.hpp
index 278bcfeaa..c535edd04 100644
--- a/host/lib/transport/vrt_packet_handler.hpp
+++ b/host/lib/transport/vrt_packet_handler.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -26,7 +26,7 @@
 #include <uhd/types/otw_type.hpp>
 #include <uhd/types/metadata.hpp>
 #include <uhd/transport/vrt_if_packet.hpp>
-#include <uhd/transport/convert_types.hpp>
+#include <uhd/convert.hpp>
 #include <uhd/transport/zero_copy.hpp>
 #include <boost/function.hpp>
 #include <stdexcept>
@@ -35,6 +35,9 @@
 
 namespace vrt_packet_handler{
 
+//this may change in the future but its a constant for now
+static const size_t OTW_BYTES_PER_SAMP = sizeof(boost::uint32_t);
+
 template <typename T> UHD_INLINE T get_context_code(
     const boost::uint32_t *vrt_hdr,
     const uhd::transport::vrt::if_packet_info_t &if_packet_info
@@ -91,6 +94,7 @@ template <typename T> UHD_INLINE T get_context_code(
         //vrt unpack each managed buffer
         uhd::transport::vrt::if_packet_info_t if_packet_info;
         for (size_t i = 0; i < state.width; i++){
+            if (state.managed_buffs[i].get() == NULL) continue; //better have a message packet coming up...
 
             //extract packet words and check thats its enough to move on
             size_t num_packet_words32 = state.managed_buffs[i]->size()/sizeof(boost::uint32_t);
@@ -144,8 +148,7 @@ template <typename T> UHD_INLINE T get_context_code(
         size_t offset_bytes,
         size_t total_samps,
         uhd::rx_metadata_t &metadata,
-        const uhd::io_type_t &io_type,
-        const uhd::otw_type_t &otw_type,
+        uhd::convert::function_type &converter,
         double tick_rate,
         const vrt_unpacker_t &vrt_unpacker,
         const get_recv_buffs_t &get_recv_buffs,
@@ -183,7 +186,7 @@ template <typename T> UHD_INLINE T get_context_code(
         }
 
         //extract the number of samples available to copy
-        size_t bytes_per_item = otw_type.get_sample_size();
+        size_t bytes_per_item = OTW_BYTES_PER_SAMP;
         size_t nsamps_available = state.size_of_copy_buffs/bytes_per_item;
         size_t nsamps_to_copy = std::min(total_samps*chans_per_otw_buff, nsamps_available);
         size_t bytes_to_copy = nsamps_to_copy*bytes_per_item;
@@ -198,9 +201,8 @@ template <typename T> UHD_INLINE T get_context_code(
             }
 
             //copy-convert the samples from the recv buffer
-            uhd::transport::convert_otw_type_to_io_type(
-                state.copy_buffs[i], otw_type, io_buffs, io_type, nsamps_to_copy_per_io_buff
-            );
+            uhd::convert::input_type otw_buffs(1, state.copy_buffs[i]);
+            converter(otw_buffs, io_buffs, nsamps_to_copy_per_io_buff);
 
             //update the rx copy buffer to reflect the bytes copied
             state.copy_buffs[i] += bytes_to_copy;
@@ -234,6 +236,11 @@ template <typename T> UHD_INLINE T get_context_code(
         size_t vrt_header_offset_words32 = 0,
         size_t chans_per_otw_buff = 1
     ){
+        uhd::convert::function_type converter(
+            uhd::convert::get_converter_otw_to_cpu(
+                io_type, otw_type, 1, chans_per_otw_buff
+        ));
+
         switch(recv_mode){
 
         ////////////////////////////////////////////////////////////////
@@ -244,7 +251,7 @@ template <typename T> UHD_INLINE T get_context_code(
                 buffs, 0,
                 total_num_samps,
                 metadata,
-                io_type, otw_type,
+                converter,
                 tick_rate,
                 vrt_unpacker,
                 get_recv_buffs,
@@ -265,7 +272,7 @@ template <typename T> UHD_INLINE T get_context_code(
                     buffs, accum_num_samps*io_type.size,
                     total_num_samps - accum_num_samps,
                     (accum_num_samps == 0)? metadata : tmp_md, //only the first metadata gets kept
-                    io_type, otw_type,
+                    converter,
                     tick_rate,
                     vrt_unpacker,
                     get_recv_buffs,
@@ -309,15 +316,14 @@ template <typename T> UHD_INLINE T get_context_code(
         const size_t offset_bytes,
         const size_t num_samps,
         uhd::transport::vrt::if_packet_info_t &if_packet_info,
-        const uhd::io_type_t &io_type,
-        const uhd::otw_type_t &otw_type,
+        uhd::convert::function_type &converter,
         const vrt_packer_t &vrt_packer,
         const get_send_buffs_t &get_send_buffs,
         const size_t vrt_header_offset_words32,
         const size_t chans_per_otw_buff
     ){
         //load the rest of the if_packet_info in here
-        if_packet_info.num_payload_words32 = (num_samps*chans_per_otw_buff*otw_type.get_sample_size())/sizeof(boost::uint32_t);
+        if_packet_info.num_payload_words32 = (num_samps*chans_per_otw_buff*OTW_BYTES_PER_SAMP)/sizeof(boost::uint32_t);
         if_packet_info.packet_count = state.next_packet_seq;
 
         //get send buffers for each channel
@@ -337,9 +343,8 @@ template <typename T> UHD_INLINE T get_context_code(
             otw_mem += if_packet_info.num_header_words32;
 
             //copy-convert the samples into the send buffer
-            uhd::transport::convert_io_type_to_otw_type(
-                io_buffs, io_type, otw_mem, otw_type, num_samps
-            );
+            uhd::convert::output_type otw_buffs(1, otw_mem);
+            converter(io_buffs, otw_buffs, num_samps);
 
             //commit the samples to the zero-copy interface
             size_t num_bytes_total = (vrt_header_offset_words32+if_packet_info.num_packet_words32)*sizeof(boost::uint32_t);
@@ -367,6 +372,11 @@ template <typename T> UHD_INLINE T get_context_code(
         size_t vrt_header_offset_words32 = 0,
         size_t chans_per_otw_buff = 1
     ){
+        uhd::convert::function_type converter(
+            uhd::convert::get_converter_cpu_to_otw(
+                io_type, otw_type, chans_per_otw_buff, 1
+        ));
+
         //translate the metadata to vrt if packet info
         uhd::transport::vrt::if_packet_info_t if_packet_info;
         if_packet_info.has_sid = false;
@@ -402,7 +412,7 @@ template <typename T> UHD_INLINE T get_context_code(
                 buffs_, 0,
                 std::min(total_num_samps_, max_samples_per_packet),
                 if_packet_info,
-                io_type, otw_type,
+                converter,
                 vrt_packer,
                 get_send_buffs,
                 vrt_header_offset_words32,
@@ -435,7 +445,7 @@ template <typename T> UHD_INLINE T get_context_code(
                     buffs, total_num_samps_sent*io_type.size,
                     std::min(total_num_samps_unsent, max_samples_per_packet),
                     if_packet_info,
-                    io_type, otw_type,
+                    converter,
                     vrt_packer,
                     get_send_buffs,
                     vrt_header_offset_words32,
diff --git a/host/lib/types.cpp b/host/lib/types.cpp
deleted file mode 100644
index bea20a4aa..000000000
--- a/host/lib/types.cpp
+++ /dev/null
@@ -1,350 +0,0 @@
-//
-// Copyright 2010 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-
-#include <uhd/utils/assert.hpp>
-#include <uhd/types/tune_request.hpp>
-#include <uhd/types/tune_result.hpp>
-#include <uhd/types/clock_config.hpp>
-#include <uhd/types/stream_cmd.hpp>
-#include <uhd/types/metadata.hpp>
-#include <uhd/types/ranges.hpp>
-#include <uhd/types/time_spec.hpp>
-#include <uhd/types/device_addr.hpp>
-#include <uhd/types/mac_addr.hpp>
-#include <uhd/types/otw_type.hpp>
-#include <uhd/types/io_type.hpp>
-#include <uhd/types/serial.hpp>
-#include <boost/math/special_functions/round.hpp>
-#include <boost/foreach.hpp>
-#include <boost/format.hpp>
-#include <boost/cstdint.hpp>
-#include <boost/assign/list_of.hpp>
-#include <boost/thread.hpp>
-#include <stdexcept>
-#include <complex>
-#include <sstream>
-
-using namespace uhd;
-
-/***********************************************************************
- * ranges template instantiation
- **********************************************************************/
-template struct uhd::meta_range_t<float>;
-template struct uhd::meta_range_t<double>;
-
-/***********************************************************************
- * tune request
- **********************************************************************/
-tune_request_t::tune_request_t(double target_freq):
-    target_freq(target_freq),
-    inter_freq_policy(POLICY_AUTO),
-    dsp_freq_policy(POLICY_AUTO)
-{
-    /* NOP */
-}
-
-tune_request_t::tune_request_t(double target_freq, double lo_off):
-    target_freq(target_freq),
-    inter_freq_policy(POLICY_MANUAL),
-    inter_freq(target_freq + lo_off),
-    dsp_freq_policy(POLICY_AUTO)
-{
-    /* NOP */
-}
-
-/***********************************************************************
- * tune result
- **********************************************************************/
-std::string tune_result_t::to_pp_string(void) const{
-    return str(boost::format(
-        "Tune Result:\n"
-        "    Target Intermediate Freq: %f (MHz)\n"
-        "    Actual Intermediate Freq: %f (MHz)\n"
-        "    Target DSP Freq Shift:    %f (MHz)\n"
-        "    Actual DSP Freq Shift:    %f (MHz)\n"
-    )
-        % (target_inter_freq/1e6) % (actual_inter_freq/1e6)
-        % (target_dsp_freq/1e6)   % (actual_dsp_freq/1e6)
-    );
-}
-
-/***********************************************************************
- * clock config
- **********************************************************************/
-clock_config_t::clock_config_t(void):
-    ref_source(REF_INT),
-    pps_source(PPS_INT),
-    pps_polarity(PPS_NEG)
-{
-    /* NOP */
-}
-
-/***********************************************************************
- * stream command
- **********************************************************************/
-stream_cmd_t::stream_cmd_t(const stream_mode_t &stream_mode):
-    stream_mode(stream_mode),
-    num_samps(0),
-    stream_now(true)
-{
-    /* NOP */
-}
-
-/***********************************************************************
- * metadata
- **********************************************************************/
-tx_metadata_t::tx_metadata_t(void):
-    has_time_spec(false),
-    time_spec(time_spec_t()),
-    start_of_burst(false),
-    end_of_burst(false)
-{
-    /* NOP */
-}
-
-/***********************************************************************
- * time spec
- **********************************************************************/
-time_spec_t::time_spec_t(double secs):
-    _full_secs(0),
-    _frac_secs(secs)
-{
-    /* NOP */
-}
-
-time_spec_t::time_spec_t(time_t full_secs, double frac_secs):
-    _full_secs(full_secs),
-    _frac_secs(frac_secs)
-{
-    /* NOP */
-}
-
-time_spec_t::time_spec_t(time_t full_secs, long tick_count, double tick_rate):
-    _full_secs(full_secs),
-    _frac_secs(double(tick_count)/tick_rate)
-{
-    /* NOP */
-}
-
-long time_spec_t::get_tick_count(double tick_rate) const{
-    return boost::math::iround(this->get_frac_secs()*tick_rate);
-}
-
-double time_spec_t::get_real_secs(void) const{
-    return this->_full_secs + this->_frac_secs;
-}
-
-time_t time_spec_t::get_full_secs(void) const{
-    double intpart;
-    std::modf(this->_frac_secs, &intpart);
-    return this->_full_secs + time_t(intpart);
-}
-
-double time_spec_t::get_frac_secs(void) const{
-    return std::fmod(this->_frac_secs, 1.0);
-}
-
-time_spec_t &time_spec_t::operator+=(const time_spec_t &rhs){
-    this->_full_secs += rhs.get_full_secs();
-    this->_frac_secs += rhs.get_frac_secs();
-    return *this;
-}
-
-time_spec_t &time_spec_t::operator-=(const time_spec_t &rhs){
-    this->_full_secs -= rhs.get_full_secs();
-    this->_frac_secs -= rhs.get_frac_secs();
-    return *this;
-}
-
-bool uhd::operator==(const time_spec_t &lhs, const time_spec_t &rhs){
-    return
-        lhs.get_full_secs() == rhs.get_full_secs() and
-        lhs.get_frac_secs() == rhs.get_frac_secs()
-    ;
-}
-
-bool uhd::operator<(const time_spec_t &lhs, const time_spec_t &rhs){
-    return (
-        (lhs.get_full_secs() < rhs.get_full_secs()) or (
-        (lhs.get_full_secs() == rhs.get_full_secs()) and
-        (lhs.get_frac_secs() < rhs.get_frac_secs())
-    ));
-}
-
-/***********************************************************************
- * device addr
- **********************************************************************/
-static const std::string arg_delim = ",";
-static const std::string pair_delim = "=";
-
-static std::string trim(const std::string &in){
-    return boost::algorithm::trim_copy(in);
-}
-
-device_addr_t::device_addr_t(const std::string &args){
-    BOOST_FOREACH(const std::string &pair, std::split_string(args, arg_delim)){
-        if (trim(pair) == "") continue;
-
-        std::vector<std::string> key_val = std::split_string(pair, pair_delim);
-        if (key_val.size() != 2) throw std::runtime_error("invalid args string: "+args);
-        (*this)[trim(key_val.front())] = trim(key_val.back());
-    }
-}
-
-std::string device_addr_t::to_pp_string(void) const{
-    if (this->size() == 0) return "Empty Device Address";
-
-    std::stringstream ss;
-    ss << "Device Address:" << std::endl;
-    BOOST_FOREACH(std::string key, this->keys()){
-        ss << boost::format("    %s: %s") % key % (*this)[key] << std::endl;
-    }
-    return ss.str();
-}
-
-std::string device_addr_t::to_string(void) const{
-    std::string args_str;
-    size_t count = 0;
-    BOOST_FOREACH(const std::string &key, this->keys()){
-        args_str += ((count++)? arg_delim : "") + key + pair_delim + (*this)[key];
-    }
-    return args_str;
-}
-
-/***********************************************************************
- * mac addr
- **********************************************************************/
-mac_addr_t::mac_addr_t(const byte_vector_t &bytes) : _bytes(bytes){
-    UHD_ASSERT_THROW(_bytes.size() == 6);
-}
-
-mac_addr_t mac_addr_t::from_bytes(const byte_vector_t &bytes){
-    return mac_addr_t(bytes);
-}
-
-mac_addr_t mac_addr_t::from_string(const std::string &mac_addr_str){
-
-    byte_vector_t bytes;
-
-    try{
-        if (mac_addr_str.size() != 17){
-            throw std::runtime_error("expected exactly 17 characters");
-        }
-
-        //split the mac addr hex string at the colons
-        BOOST_FOREACH(const std::string &hex_str, std::split_string(mac_addr_str, ":")){
-            int hex_num;
-            std::istringstream iss(hex_str);
-            iss >> std::hex >> hex_num;
-            bytes.push_back(boost::uint8_t(hex_num));
-        }
-
-    }
-    catch(std::exception const& e){
-        throw std::runtime_error(str(
-            boost::format("Invalid mac address: %s\n\t%s") % mac_addr_str % e.what()
-        ));
-    }
-
-    return mac_addr_t::from_bytes(bytes);
-}
-
-byte_vector_t mac_addr_t::to_bytes(void) const{
-    return _bytes;
-}
-
-std::string mac_addr_t::to_string(void) const{
-    std::string addr = "";
-    BOOST_FOREACH(boost::uint8_t byte, this->to_bytes()){
-        addr += str(boost::format("%s%02x") % ((addr == "")?"":":") % int(byte));
-    }
-    return addr;
-}
-
-/***********************************************************************
- * otw type
- **********************************************************************/
-size_t otw_type_t::get_sample_size(void) const{
-    return (this->width * 2) / 8;
-}
-
-otw_type_t::otw_type_t(void):
-    width(0),
-    shift(0),
-    byteorder(BO_NATIVE)
-{
-    /* NOP */
-}
-
-/***********************************************************************
- * io type
- **********************************************************************/
-static size_t tid_to_size(io_type_t::tid_t tid){
-    switch(tid){
-    case io_type_t::COMPLEX_FLOAT32: return sizeof(std::complex<float>);
-    case io_type_t::COMPLEX_INT16:   return sizeof(std::complex<boost::int16_t>);
-    case io_type_t::COMPLEX_INT8:    return sizeof(std::complex<boost::int8_t>);
-    default: throw std::runtime_error("unknown io type tid");
-    }
-}
-
-io_type_t::io_type_t(tid_t tid)
-: size(tid_to_size(tid)), tid(tid){
-    /* NOP */
-}
-
-io_type_t::io_type_t(size_t size)
-: size(size), tid(CUSTOM_TYPE){
-    /* NOP */
-}
-
-/***********************************************************************
- * serial
- **********************************************************************/
-spi_config_t::spi_config_t(edge_t edge):
-    mosi_edge(edge),
-    miso_edge(edge)
-{
-    /* NOP */
-}
-
-void i2c_iface::write_eeprom(
-    boost::uint8_t addr,
-    boost::uint8_t offset,
-    const byte_vector_t &bytes
-){
-    for (size_t i = 0; i < bytes.size(); i++){
-        //write a byte at a time, its easy that way
-        byte_vector_t cmd = boost::assign::list_of(offset+i)(bytes[i]);
-        this->write_i2c(addr, cmd);
-        boost::this_thread::sleep(boost::posix_time::milliseconds(10)); //worst case write
-    }
-}
-
-byte_vector_t i2c_iface::read_eeprom(
-    boost::uint8_t addr,
-    boost::uint8_t offset,
-    size_t num_bytes
-){
-    byte_vector_t bytes;
-    for (size_t i = 0; i < num_bytes; i++){
-        //do a zero byte write to start read cycle
-        this->write_i2c(addr, byte_vector_t(1, offset+i));
-        bytes.push_back(this->read_i2c(addr, 1).at(0));
-    }
-    return bytes;
-}
diff --git a/firmware/microblaze/usrp2/Makefile.am b/host/lib/types/CMakeLists.txt
index 7a58e7253..dfb7cf903 100644
--- a/firmware/microblaze/usrp2/Makefile.am
+++ b/host/lib/types/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -15,33 +15,17 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-include $(top_srcdir)/Makefile.common
-
-AM_CFLAGS = \
-	$(COMMON_CFLAGS)
-
-AM_LDFLAGS = \
-	$(COMMON_LFLAGS) \
-	-Wl,-defsym -Wl,_TEXT_START_ADDR=0x0050 \
-	-Wl,-defsym -Wl,_STACK_SIZE=3072
-	
-LDADD = libusrp2.a
-
-LDADD = libusrp2.a
-
 ########################################################################
-# USRP2 specific library and programs
+# This file included, use CMake directory variables
 ########################################################################
-noinst_LIBRARIES = libusrp2.a
-
-libusrp2_a_SOURCES = \
-	$(COMMON_SRCS) \
-	sd.c \
-	ethernet.c \
-  udp_fw_update.c
-
-noinst_PROGRAMS = \
-	usrp2_txrx_uhd.elf
-
-usrp2_txrx_uhd_elf_SOURCES = \
-	$(top_srcdir)/apps/txrx_uhd.c
+LIBUHD_APPEND_SOURCES(
+    ${CMAKE_CURRENT_SOURCE_DIR}/clock_config.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/device_addr.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/mac_addr.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/ranges.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/sensors.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/serial.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/time_spec.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/tune.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/types.cpp
+)
diff --git a/host/lib/types/clock_config.cpp b/host/lib/types/clock_config.cpp
new file mode 100644
index 000000000..c150c5cc3
--- /dev/null
+++ b/host/lib/types/clock_config.cpp
@@ -0,0 +1,44 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/types/clock_config.hpp>
+
+using namespace uhd;
+
+clock_config_t clock_config_t::external(void){
+    clock_config_t clock_config;
+    clock_config.ref_source = clock_config_t::REF_SMA;
+    clock_config.pps_source = clock_config_t::PPS_SMA;
+    clock_config.pps_polarity = clock_config_t::PPS_POS;
+    return clock_config;
+}
+
+clock_config_t clock_config_t::internal(void){
+    clock_config_t clock_config;
+    clock_config.ref_source = clock_config_t::REF_INT;
+    clock_config.pps_source = clock_config_t::PPS_SMA;
+    clock_config.pps_polarity = clock_config_t::PPS_POS;
+    return clock_config;
+}
+
+clock_config_t::clock_config_t(void):
+    ref_source(REF_INT),
+    pps_source(PPS_SMA),
+    pps_polarity(PPS_POS)
+{
+    /* NOP */
+}
diff --git a/host/lib/types/device_addr.cpp b/host/lib/types/device_addr.cpp
new file mode 100644
index 000000000..14afaa24b
--- /dev/null
+++ b/host/lib/types/device_addr.cpp
@@ -0,0 +1,73 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/types/device_addr.hpp>
+#include <boost/algorithm/string.hpp> //for trim
+#include <boost/tokenizer.hpp>
+#include <boost/foreach.hpp>
+#include <boost/format.hpp>
+#include <stdexcept>
+#include <sstream>
+
+using namespace uhd;
+
+static const std::string arg_delim = ",";
+static const std::string pair_delim = "=";
+
+static std::string trim(const std::string &in){
+    return boost::algorithm::trim_copy(in);
+}
+
+#define tokenizer(inp, sep) \
+    boost::tokenizer<boost::char_separator<char> > \
+    (inp, boost::char_separator<char>(sep.c_str()))
+
+device_addr_t::device_addr_t(const std::string &args){
+    BOOST_FOREACH(const std::string &pair, tokenizer(args, arg_delim)){
+        if (trim(pair) == "") continue;
+        std::string key;
+        BOOST_FOREACH(const std::string &tok, tokenizer(pair, pair_delim)){
+            if (key.empty()) key = tok;
+            else{
+                this->set(trim(key), trim(tok));
+                goto continue_next_arg;
+            }
+        }
+        throw std::runtime_error("invalid args string: "+args);
+        continue_next_arg: continue;
+    }
+}
+
+std::string device_addr_t::to_pp_string(void) const{
+    if (this->size() == 0) return "Empty Device Address";
+
+    std::stringstream ss;
+    ss << "Device Address:" << std::endl;
+    BOOST_FOREACH(std::string key, this->keys()){
+        ss << boost::format("    %s: %s") % key % this->get(key) << std::endl;
+    }
+    return ss.str();
+}
+
+std::string device_addr_t::to_string(void) const{
+    std::string args_str;
+    size_t count = 0;
+    BOOST_FOREACH(const std::string &key, this->keys()){
+        args_str += ((count++)? arg_delim : "") + key + pair_delim + this->get(key);
+    }
+    return args_str;
+}
diff --git a/host/lib/types/mac_addr.cpp b/host/lib/types/mac_addr.cpp
new file mode 100644
index 000000000..cf3c3fa97
--- /dev/null
+++ b/host/lib/types/mac_addr.cpp
@@ -0,0 +1,76 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/types/mac_addr.hpp>
+#include <uhd/utils/assert.hpp>
+#include <boost/tokenizer.hpp>
+#include <boost/foreach.hpp>
+#include <boost/format.hpp>
+#include <boost/cstdint.hpp>
+#include <stdexcept>
+#include <sstream>
+
+using namespace uhd;
+
+mac_addr_t::mac_addr_t(const byte_vector_t &bytes) : _bytes(bytes){
+    UHD_ASSERT_THROW(_bytes.size() == 6);
+}
+
+mac_addr_t mac_addr_t::from_bytes(const byte_vector_t &bytes){
+    return mac_addr_t(bytes);
+}
+
+mac_addr_t mac_addr_t::from_string(const std::string &mac_addr_str){
+
+    byte_vector_t bytes;
+
+    try{
+        if (mac_addr_str.size() != 17){
+            throw std::runtime_error("expected exactly 17 characters");
+        }
+
+        //split the mac addr hex string at the colons
+        boost::tokenizer<boost::char_separator<char> > hex_num_toks(
+            mac_addr_str, boost::char_separator<char>(":"));
+        BOOST_FOREACH(const std::string &hex_str, hex_num_toks){
+            int hex_num;
+            std::istringstream iss(hex_str);
+            iss >> std::hex >> hex_num;
+            bytes.push_back(boost::uint8_t(hex_num));
+        }
+
+    }
+    catch(std::exception const& e){
+        throw std::runtime_error(str(
+            boost::format("Invalid mac address: %s\n\t%s") % mac_addr_str % e.what()
+        ));
+    }
+
+    return mac_addr_t::from_bytes(bytes);
+}
+
+byte_vector_t mac_addr_t::to_bytes(void) const{
+    return _bytes;
+}
+
+std::string mac_addr_t::to_string(void) const{
+    std::string addr = "";
+    BOOST_FOREACH(boost::uint8_t byte, this->to_bytes()){
+        addr += str(boost::format("%s%02x") % ((addr == "")?"":":") % int(byte));
+    }
+    return addr;
+}
diff --git a/host/lib/types/ranges.cpp b/host/lib/types/ranges.cpp
new file mode 100644
index 000000000..4a0d05d80
--- /dev/null
+++ b/host/lib/types/ranges.cpp
@@ -0,0 +1,163 @@
+//
+// Copyright 2011-2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/types/ranges.hpp>
+#include <boost/math/special_functions/round.hpp>
+#include <boost/foreach.hpp>
+#include <algorithm>
+#include <stdexcept>
+#include <sstream>
+
+using namespace uhd;
+
+/***********************************************************************
+ * range_t implementation code
+ **********************************************************************/
+struct range_t::impl{
+    impl(double start, double stop, double step):
+        start(start), stop(stop), step(step)
+    {
+        /* NOP */
+    }
+    double start, stop, step;
+};
+
+range_t::range_t(double value):
+    _impl(UHD_PIMPL_MAKE(impl, (value, value, 0)))
+{
+    /* NOP */
+}
+
+range_t::range_t(
+    double start, double stop, double step
+):
+    _impl(UHD_PIMPL_MAKE(impl, (start, stop, step)))
+{
+    if (stop < start){
+        throw std::invalid_argument("cannot make range where stop < start");
+    }
+}
+
+double range_t::start(void) const{
+    return _impl->start;
+}
+
+double range_t::stop(void) const{
+    return _impl->stop;
+}
+
+double range_t::step(void) const{
+    return _impl->step;
+}
+
+const std::string range_t::to_pp_string(void) const{
+    std::stringstream ss;
+    ss << "(" << this->start();
+    if (this->start() != this->stop()) ss << ", " << this->stop();
+    if (this->step() != 0) ss << ", " << this->step();
+    ss << ")";
+    return ss.str();
+}
+
+/***********************************************************************
+ * meta_range_t implementation code
+ **********************************************************************/
+void check_meta_range_monotonic(const meta_range_t &mr){
+    if (mr.empty()){
+        throw std::runtime_error("meta-range cannot be empty");
+    }
+    for (size_t i = 1; i < mr.size(); i++){
+        if (mr.at(i).start() < mr.at(i-1).stop()){
+            throw std::runtime_error("meta-range is not monotonic");
+        }
+    }
+}
+
+meta_range_t::meta_range_t(void){
+    /* NOP */
+}
+
+meta_range_t::meta_range_t(
+    double start, double stop, double step
+):
+    std::vector<range_t > (1, range_t(start, stop, step))
+{
+    /* NOP */
+}
+
+double meta_range_t::start(void) const{
+    check_meta_range_monotonic(*this);
+    double min_start = this->front().start();
+    BOOST_FOREACH(const range_t &r, (*this)){
+        min_start = std::min(min_start, r.start());
+    }
+    return min_start;
+}
+
+double meta_range_t::stop(void) const{
+    check_meta_range_monotonic(*this);
+    double max_stop = this->front().stop();
+    BOOST_FOREACH(const range_t &r, (*this)){
+        max_stop = std::max(max_stop, r.stop());
+    }
+    return max_stop;
+}
+
+double meta_range_t::step(void) const{
+    check_meta_range_monotonic(*this);
+    std::vector<double> non_zero_steps;
+    range_t last = this->front();
+    BOOST_FOREACH(const range_t &r, (*this)){
+        //steps at each range
+        if (r.step() > 0) non_zero_steps.push_back(r.step());
+        //and steps in-between ranges
+        double ibtw_step = r.start() - last.stop();
+        if (ibtw_step > 0) non_zero_steps.push_back(ibtw_step);
+        //store ref to last
+        last = r;
+    }
+    if (non_zero_steps.empty()) return 0; //all zero steps, its zero...
+    return *std::min_element(non_zero_steps.begin(), non_zero_steps.end());
+}
+
+double meta_range_t::clip(double value, bool clip_step) const{
+    check_meta_range_monotonic(*this);
+    double last_stop = this->front().stop();
+    BOOST_FOREACH(const range_t &r, (*this)){
+        //in-between ranges, clip to nearest
+        if (value < r.start()){
+            return (std::abs(value - r.start()) < std::abs(value - last_stop))?
+                r.start() : last_stop;
+        }
+        //in this range, clip here
+        if (value <= r.stop()){
+            if (not clip_step or r.step() == 0) return value;
+            return boost::math::round((value - r.start())/r.step())*r.step() + r.start();
+        }
+        //continue on to the next range
+        last_stop = r.stop();
+    }
+    return last_stop;
+}
+
+const std::string meta_range_t::to_pp_string(void) const{
+    std::stringstream ss;
+    BOOST_FOREACH(const range_t &r, (*this)){
+        ss << r.to_pp_string() << std::endl;
+    }
+    return ss.str();
+}
diff --git a/host/lib/types/sensors.cpp b/host/lib/types/sensors.cpp
new file mode 100644
index 000000000..2bff136a4
--- /dev/null
+++ b/host/lib/types/sensors.cpp
@@ -0,0 +1,81 @@
+//
+// Copyright 2011-2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/types/sensors.hpp>
+#include <uhd/utils/exception.hpp>
+#include <boost/format.hpp>
+
+using namespace uhd;
+
+sensor_value_t::sensor_value_t(
+    const std::string &name,
+    bool value,
+    const std::string &ufalse,
+    const std::string &utrue
+):
+    name(name), value(value?"true":"false"),
+    unit(value?utrue:ufalse), type(BOOLEAN)
+{
+    /* NOP */
+}
+
+sensor_value_t::sensor_value_t(
+    const std::string &name,
+    int_type value,
+    const std::string &unit,
+    const std::string &formatter
+):
+    name(name), value(str(boost::format(formatter) % value)),
+    unit(unit), type(INTEGER)
+{
+    /* NOP */
+}
+
+sensor_value_t::sensor_value_t(
+    const std::string &name,
+    real_type value,
+    const std::string &unit,
+    const std::string &formatter
+):
+    name(name), value(str(boost::format(formatter) % value)),
+    unit(unit), type(REALNUM)
+{
+    /* NOP */
+}
+
+sensor_value_t::sensor_value_t(
+    const std::string &name,
+    const std::string &value,
+    const std::string &unit
+):
+    name(name), value(value),
+    unit(unit), type(STRING)
+{
+    /* NOP */
+}
+
+std::string sensor_value_t::to_pp_string(void) const{
+    switch(type){
+    case BOOLEAN:
+        return str(boost::format("%s: %s") % name % unit);
+    case INTEGER:
+    case REALNUM:
+    case STRING:
+        return str(boost::format("%s: %s %s") % name % value % unit);
+    }
+    UHD_THROW_INVALID_CODE_PATH();
+}
diff --git a/host/lib/types/serial.cpp b/host/lib/types/serial.cpp
new file mode 100644
index 000000000..9acf7156a
--- /dev/null
+++ b/host/lib/types/serial.cpp
@@ -0,0 +1,56 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/types/serial.hpp>
+#include <boost/thread.hpp> //for sleeping
+#include <boost/assign/list_of.hpp>
+
+using namespace uhd;
+
+spi_config_t::spi_config_t(edge_t edge):
+    mosi_edge(edge),
+    miso_edge(edge)
+{
+    /* NOP */
+}
+
+void i2c_iface::write_eeprom(
+    boost::uint8_t addr,
+    boost::uint8_t offset,
+    const byte_vector_t &bytes
+){
+    for (size_t i = 0; i < bytes.size(); i++){
+        //write a byte at a time, its easy that way
+        byte_vector_t cmd = boost::assign::list_of(offset+i)(bytes[i]);
+        this->write_i2c(addr, cmd);
+        boost::this_thread::sleep(boost::posix_time::milliseconds(10)); //worst case write
+    }
+}
+
+byte_vector_t i2c_iface::read_eeprom(
+    boost::uint8_t addr,
+    boost::uint8_t offset,
+    size_t num_bytes
+){
+    byte_vector_t bytes;
+    for (size_t i = 0; i < num_bytes; i++){
+        //do a zero byte write to start read cycle
+        this->write_i2c(addr, byte_vector_t(1, offset+i));
+        bytes.push_back(this->read_i2c(addr, 1).at(0));
+    }
+    return bytes;
+}
diff --git a/host/lib/types/time_spec.cpp b/host/lib/types/time_spec.cpp
new file mode 100644
index 000000000..f39625a11
--- /dev/null
+++ b/host/lib/types/time_spec.cpp
@@ -0,0 +1,86 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/types/time_spec.hpp>
+#include <boost/math/special_functions/round.hpp>
+
+using namespace uhd;
+time_spec_t::time_spec_t(double secs):
+    _full_secs(0),
+    _frac_secs(secs)
+{
+    /* NOP */
+}
+
+time_spec_t::time_spec_t(time_t full_secs, double frac_secs):
+    _full_secs(full_secs),
+    _frac_secs(frac_secs)
+{
+    /* NOP */
+}
+
+time_spec_t::time_spec_t(time_t full_secs, long tick_count, double tick_rate):
+    _full_secs(full_secs),
+    _frac_secs(double(tick_count)/tick_rate)
+{
+    /* NOP */
+}
+
+long time_spec_t::get_tick_count(double tick_rate) const{
+    return boost::math::iround(this->get_frac_secs()*tick_rate);
+}
+
+double time_spec_t::get_real_secs(void) const{
+    return this->_full_secs + this->_frac_secs;
+}
+
+time_t time_spec_t::get_full_secs(void) const{
+    double intpart;
+    std::modf(this->_frac_secs, &intpart);
+    return this->_full_secs + time_t(intpart);
+}
+
+double time_spec_t::get_frac_secs(void) const{
+    return std::fmod(this->_frac_secs, 1.0);
+}
+
+time_spec_t &time_spec_t::operator+=(const time_spec_t &rhs){
+    this->_full_secs += rhs.get_full_secs();
+    this->_frac_secs += rhs.get_frac_secs();
+    return *this;
+}
+
+time_spec_t &time_spec_t::operator-=(const time_spec_t &rhs){
+    this->_full_secs -= rhs.get_full_secs();
+    this->_frac_secs -= rhs.get_frac_secs();
+    return *this;
+}
+
+bool uhd::operator==(const time_spec_t &lhs, const time_spec_t &rhs){
+    return
+        lhs.get_full_secs() == rhs.get_full_secs() and
+        lhs.get_frac_secs() == rhs.get_frac_secs()
+    ;
+}
+
+bool uhd::operator<(const time_spec_t &lhs, const time_spec_t &rhs){
+    return (
+        (lhs.get_full_secs() < rhs.get_full_secs()) or (
+        (lhs.get_full_secs() == rhs.get_full_secs()) and
+        (lhs.get_frac_secs() < rhs.get_frac_secs())
+    ));
+}
diff --git a/host/lib/types/tune.cpp b/host/lib/types/tune.cpp
new file mode 100644
index 000000000..601bc20e8
--- /dev/null
+++ b/host/lib/types/tune.cpp
@@ -0,0 +1,52 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/types/tune_request.hpp>
+#include <uhd/types/tune_result.hpp>
+#include <boost/format.hpp>
+
+using namespace uhd;
+
+tune_request_t::tune_request_t(double target_freq):
+    target_freq(target_freq),
+    inter_freq_policy(POLICY_AUTO),
+    dsp_freq_policy(POLICY_AUTO)
+{
+    /* NOP */
+}
+
+tune_request_t::tune_request_t(double target_freq, double lo_off):
+    target_freq(target_freq),
+    inter_freq_policy(POLICY_MANUAL),
+    inter_freq(target_freq + lo_off),
+    dsp_freq_policy(POLICY_AUTO)
+{
+    /* NOP */
+}
+
+std::string tune_result_t::to_pp_string(void) const{
+    return str(boost::format(
+        "Tune Result:\n"
+        "    Target Intermediate Freq: %f (MHz)\n"
+        "    Actual Intermediate Freq: %f (MHz)\n"
+        "    Target DSP Freq Shift:    %f (MHz)\n"
+        "    Actual DSP Freq Shift:    %f (MHz)\n"
+    )
+        % (target_inter_freq/1e6) % (actual_inter_freq/1e6)
+        % (target_dsp_freq/1e6)   % (actual_dsp_freq/1e6)
+    );
+}
diff --git a/host/lib/types/types.cpp b/host/lib/types/types.cpp
new file mode 100644
index 000000000..34d5947eb
--- /dev/null
+++ b/host/lib/types/types.cpp
@@ -0,0 +1,86 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/types/stream_cmd.hpp>
+#include <uhd/types/metadata.hpp>
+#include <uhd/types/otw_type.hpp>
+#include <uhd/types/io_type.hpp>
+#include <boost/cstdint.hpp>
+#include <stdexcept>
+#include <complex>
+
+using namespace uhd;
+
+/***********************************************************************
+ * stream command
+ **********************************************************************/
+stream_cmd_t::stream_cmd_t(const stream_mode_t &stream_mode):
+    stream_mode(stream_mode),
+    num_samps(0),
+    stream_now(true)
+{
+    /* NOP */
+}
+
+/***********************************************************************
+ * metadata
+ **********************************************************************/
+tx_metadata_t::tx_metadata_t(void):
+    has_time_spec(false),
+    time_spec(time_spec_t()),
+    start_of_burst(false),
+    end_of_burst(false)
+{
+    /* NOP */
+}
+
+/***********************************************************************
+ * otw type
+ **********************************************************************/
+size_t otw_type_t::get_sample_size(void) const{
+    return (this->width * 2) / 8;
+}
+
+otw_type_t::otw_type_t(void):
+    width(0),
+    shift(0),
+    byteorder(BO_NATIVE)
+{
+    /* NOP */
+}
+
+/***********************************************************************
+ * io type
+ **********************************************************************/
+static size_t tid_to_size(io_type_t::tid_t tid){
+    switch(tid){
+    case io_type_t::COMPLEX_FLOAT32: return sizeof(std::complex<float>);
+    case io_type_t::COMPLEX_INT16:   return sizeof(std::complex<boost::int16_t>);
+    case io_type_t::COMPLEX_INT8:    return sizeof(std::complex<boost::int8_t>);
+    default: throw std::runtime_error("unknown io type tid");
+    }
+}
+
+io_type_t::io_type_t(tid_t tid)
+: size(tid_to_size(tid)), tid(tid){
+    /* NOP */
+}
+
+io_type_t::io_type_t(size_t size)
+: size(size), tid(CUSTOM_TYPE){
+    /* NOP */
+}
diff --git a/host/lib/usrp/CMakeLists.txt b/host/lib/usrp/CMakeLists.txt
index 9dc74a5fe..bd25aec2b 100644
--- a/host/lib/usrp/CMakeLists.txt
+++ b/host/lib/usrp/CMakeLists.txt
@@ -25,6 +25,7 @@ LIBUHD_APPEND_SOURCES(
     ${CMAKE_CURRENT_SOURCE_DIR}/dboard_iface.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/dboard_manager.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/dsp_utils.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/gps_ctrl.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/mboard_eeprom.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/misc_utils.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/multi_usrp.cpp
diff --git a/host/lib/usrp/dboard/db_basic_and_lf.cpp b/host/lib/usrp/dboard/db_basic_and_lf.cpp
index f771595b6..b311576d2 100644
--- a/host/lib/usrp/dboard/db_basic_and_lf.cpp
+++ b/host/lib/usrp/dboard/db_basic_and_lf.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -134,7 +134,7 @@ void basic_rx::rx_get(const wax::obj &key_, wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        val = float(0);
+        val = double(0);
         return;
 
     case SUBDEV_PROP_GAIN_RANGE:
@@ -192,7 +192,7 @@ void basic_rx::rx_set(const wax::obj &key_, const wax::obj &val){
     switch(key.as<subdev_prop_t>()){
 
     case SUBDEV_PROP_GAIN:
-        UHD_ASSERT_THROW(val.as<float>() == float(0));
+        UHD_ASSERT_THROW(val.as<double>() == double(0));
         return;
 
     case SUBDEV_PROP_ANTENNA:
@@ -245,7 +245,7 @@ void basic_tx::tx_get(const wax::obj &key_, wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        val = float(0);
+        val = double(0);
         return;
 
     case SUBDEV_PROP_GAIN_RANGE:
@@ -303,7 +303,7 @@ void basic_tx::tx_set(const wax::obj &key_, const wax::obj &val){
     switch(key.as<subdev_prop_t>()){
 
     case SUBDEV_PROP_GAIN:
-        UHD_ASSERT_THROW(val.as<float>() == float(0));
+        UHD_ASSERT_THROW(val.as<double>() == double(0));
         return;
 
     case SUBDEV_PROP_ANTENNA:
diff --git a/host/lib/usrp/dboard/db_dbsrx.cpp b/host/lib/usrp/dboard/db_dbsrx.cpp
index 7250136f5..3ea9cea80 100644
--- a/host/lib/usrp/dboard/db_dbsrx.cpp
+++ b/host/lib/usrp/dboard/db_dbsrx.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -70,7 +70,7 @@ public:
 private:
     double _lo_freq;
     double _bandwidth;
-    uhd::dict<std::string, float> _gains;
+    uhd::dict<std::string, double> _gains;
     max2118_write_regs_t _max2118_write_regs;
     max2118_read_regs_t _max2118_read_regs;
     boost::uint8_t _max2118_addr(void){
@@ -78,7 +78,7 @@ private:
     };
 
     void set_lo_freq(double target_freq);
-    void set_gain(float gain, const std::string &name);
+    void set_gain(double gain, const std::string &name);
     void set_bandwidth(double bandwidth);
 
     void send_reg(boost::uint8_t start_reg, boost::uint8_t stop_reg){
@@ -418,17 +418,17 @@ void dbsrx::set_lo_freq(double target_freq){
  * \param gain the requested gain in dB
  * \return 5 bit the register value
  */
-static int gain_to_gc2_vga_reg(float &gain){
+static int gain_to_gc2_vga_reg(double &gain){
     int reg = 0;
     gain = dbsrx_gain_ranges["GC2"].clip(gain);
 
     // Half dB steps from 0-5dB, 1dB steps from 5-24dB
     if (gain < 5) {
         reg = boost::math::iround(31.0 - gain/0.5);
-        gain = float(boost::math::iround(gain) * 0.5);
+        gain = double(boost::math::iround(gain) * 0.5);
     } else {
         reg = boost::math::iround(22.0 - (gain - 4.0));
-        gain = float(boost::math::iround(gain));
+        gain = double(boost::math::iround(gain));
     }
 
     if (dbsrx_debug) std::cerr << boost::format(
@@ -444,16 +444,16 @@ static int gain_to_gc2_vga_reg(float &gain){
  * \param gain the requested gain in dB
  * \return dac voltage value
  */
-static float gain_to_gc1_rfvga_dac(float &gain){
+static double gain_to_gc1_rfvga_dac(double &gain){
     //clip the input
     gain = dbsrx_gain_ranges["GC1"].clip(gain);
 
     //voltage level constants
-    static const float max_volts = float(1.2), min_volts = float(2.7);
-    static const float slope = (max_volts-min_volts)/dbsrx_gain_ranges["GC1"].stop();
+    static const double max_volts = 1.2, min_volts = 2.7;
+    static const double slope = (max_volts-min_volts)/dbsrx_gain_ranges["GC1"].stop();
 
     //calculate the voltage for the aux dac
-    float dac_volts = gain*slope + min_volts;
+    double dac_volts = gain*slope + min_volts;
 
     if (dbsrx_debug) std::cerr << boost::format(
         "DBSRX GC1 Gain: %f dB, dac_volts: %f V"
@@ -465,7 +465,7 @@ static float gain_to_gc1_rfvga_dac(float &gain){
     return dac_volts;
 }
 
-void dbsrx::set_gain(float gain, const std::string &name){
+void dbsrx::set_gain(double gain, const std::string &name){
     assert_has(dbsrx_gain_ranges.keys(), name, "dbsrx gain name");
     if (name == "GC2"){
         _max2118_write_regs.gc2 = gain_to_gc2_vga_reg(gain);
@@ -584,7 +584,7 @@ void dbsrx::rx_set(const wax::obj &key_, const wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        this->set_gain(val.as<float>(), key.name);
+        this->set_gain(val.as<double>(), key.name);
         return;
 
     case SUBDEV_PROP_ENABLED:
diff --git a/host/lib/usrp/dboard/db_dbsrx2.cpp b/host/lib/usrp/dboard/db_dbsrx2.cpp
index cdafd6a78..defb70ff5 100644
--- a/host/lib/usrp/dboard/db_dbsrx2.cpp
+++ b/host/lib/usrp/dboard/db_dbsrx2.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -48,7 +48,7 @@ static const int dbsrx2_ref_divider = 4; // Hitachi HMC426 divider (U7)
 static const prop_names_t dbsrx2_antennas = list_of("J3");
 
 static const uhd::dict<std::string, gain_range_t> dbsrx2_gain_ranges = map_list_of
-    ("GC1", gain_range_t(0, 73, float(0.05)))
+    ("GC1", gain_range_t(0, 73, 0.05))
     ("BBG", gain_range_t(0, 15, 1))
 ;
 
@@ -66,7 +66,7 @@ public:
 private:
     double _lo_freq;
     double _bandwidth;
-    uhd::dict<std::string, float> _gains;
+    uhd::dict<std::string, double> _gains;
     max2112_write_regs_t _max2112_write_regs;
     max2112_read_regs_t _max2112_read_regs;
     boost::uint8_t _max2112_addr(){ //0x60 or 0x61 depending on which side
@@ -74,7 +74,7 @@ private:
     }
 
     void set_lo_freq(double target_freq);
-    void set_gain(float gain, const std::string &name);
+    void set_gain(double gain, const std::string &name);
     void set_bandwidth(double bandwidth);
 
     void send_reg(boost::uint8_t start_reg, boost::uint8_t stop_reg){
@@ -269,10 +269,10 @@ void dbsrx2::set_lo_freq(double target_freq){
  * \param gain the requested gain in dB
  * \return 4 bit the register value
  */
-static int gain_to_bbg_vga_reg(float &gain){
+static int gain_to_bbg_vga_reg(double &gain){
     int reg = boost::math::iround(dbsrx2_gain_ranges["BBG"].clip(gain));
 
-    gain = float(reg);
+    gain = double(reg);
 
     if (dbsrx2_debug) std::cerr 
         << boost::format("DBSRX2 BBG Gain:\n")
@@ -288,16 +288,16 @@ static int gain_to_bbg_vga_reg(float &gain){
  * \param gain the requested gain in dB
  * \return dac voltage value
  */
-static float gain_to_gc1_rfvga_dac(float &gain){
+static double gain_to_gc1_rfvga_dac(double &gain){
     //clip the input
     gain = dbsrx2_gain_ranges["GC1"].clip(gain);
 
     //voltage level constants
-    static const float max_volts = float(0.5), min_volts = float(2.7);
-    static const float slope = (max_volts-min_volts)/dbsrx2_gain_ranges["GC1"].stop();
+    static const double max_volts = 0.5, min_volts = 2.7;
+    static const double slope = (max_volts-min_volts)/dbsrx2_gain_ranges["GC1"].stop();
 
     //calculate the voltage for the aux dac
-    float dac_volts = gain*slope + min_volts;
+    double dac_volts = gain*slope + min_volts;
 
     if (dbsrx2_debug) std::cerr 
         << boost::format("DBSRX2 GC1 Gain:\n")
@@ -310,7 +310,7 @@ static float gain_to_gc1_rfvga_dac(float &gain){
     return dac_volts;
 }
 
-void dbsrx2::set_gain(float gain, const std::string &name){
+void dbsrx2::set_gain(double gain, const std::string &name){
     assert_has(dbsrx2_gain_ranges.keys(), name, "dbsrx2 gain name");
     if (name == "BBG"){
         _max2112_write_regs.bbg = gain_to_bbg_vga_reg(gain);
@@ -423,7 +423,7 @@ void dbsrx2::rx_set(const wax::obj &key_, const wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        this->set_gain(val.as<float>(), key.name);
+        this->set_gain(val.as<double>(), key.name);
         return;
 
     case SUBDEV_PROP_ENABLED:
diff --git a/host/lib/usrp/dboard/db_rfx.cpp b/host/lib/usrp/dboard/db_rfx.cpp
index 74a9fb37b..cd25ee9b7 100644
--- a/host/lib/usrp/dboard/db_rfx.cpp
+++ b/host/lib/usrp/dboard/db_rfx.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -67,11 +67,11 @@ static const prop_names_t rfx_rx_antennas = list_of("TX/RX")("RX2");
 static const uhd::dict<std::string, gain_range_t> rfx_tx_gain_ranges; //empty
 
 static const uhd::dict<std::string, gain_range_t> rfx_rx_gain_ranges = map_list_of
-    ("PGA0", gain_range_t(0, 70, float(0.022)))
+    ("PGA0", gain_range_t(0, 70, 0.022))
 ;
 
 static const uhd::dict<std::string, gain_range_t> rfx400_rx_gain_ranges = map_list_of
-    ("PGA0", gain_range_t(0, 45, float(0.022)))
+    ("PGA0", gain_range_t(0, 45, 0.022))
 ;
 
 /***********************************************************************
@@ -98,14 +98,14 @@ private:
     const uhd::dict<dboard_iface::unit_t, bool> _div2;
     double       _rx_lo_freq, _tx_lo_freq;
     std::string  _rx_ant;
-    uhd::dict<std::string, float> _rx_gains;
+    uhd::dict<std::string, double> _rx_gains;
 
     void set_rx_lo_freq(double freq);
     void set_tx_lo_freq(double freq);
     void set_rx_ant(const std::string &ant);
     void set_tx_ant(const std::string &ant);
-    void set_rx_gain(float gain, const std::string &name);
-    void set_tx_gain(float gain, const std::string &name);
+    void set_rx_gain(double gain, const std::string &name);
+    void set_tx_gain(double gain, const std::string &name);
 
     /*!
      * Set the LO frequency for the particular dboard unit.
@@ -240,13 +240,13 @@ void rfx_xcvr::set_tx_ant(const std::string &ant){
 /***********************************************************************
  * Gain Handling
  **********************************************************************/
-static float rx_pga0_gain_to_dac_volts(float &gain, float range){
+static double rx_pga0_gain_to_dac_volts(double &gain, double range){
     //voltage level constants (negative slope)
-    static const float max_volts = float(.2), min_volts = float(1.2);
-    static const float slope = (max_volts-min_volts)/(range);
+    static const double max_volts = .2, min_volts = 1.2;
+    static const double slope = (max_volts-min_volts)/(range);
 
     //calculate the voltage for the aux dac
-    float dac_volts = std::clip<float>(gain*slope + min_volts, max_volts, min_volts);
+    double dac_volts = std::clip<double>(gain*slope + min_volts, max_volts, min_volts);
 
     //the actual gain setting
     gain = (dac_volts - min_volts)/slope;
@@ -254,15 +254,15 @@ static float rx_pga0_gain_to_dac_volts(float &gain, float range){
     return dac_volts;
 }
 
-void rfx_xcvr::set_tx_gain(float, const std::string &name){
+void rfx_xcvr::set_tx_gain(double, const std::string &name){
     assert_has(rfx_tx_gain_ranges.keys(), name, "rfx tx gain name");
     UHD_THROW_INVALID_CODE_PATH(); //no gains to set
 }
 
-void rfx_xcvr::set_rx_gain(float gain, const std::string &name){
+void rfx_xcvr::set_rx_gain(double gain, const std::string &name){
     assert_has(_rx_gain_ranges.keys(), name, "rfx rx gain name");
     if(name == "PGA0"){
-        float dac_volts = rx_pga0_gain_to_dac_volts(gain, 
+        double dac_volts = rx_pga0_gain_to_dac_volts(gain, 
                               (_rx_gain_ranges["PGA0"].stop() - _rx_gain_ranges["PGA0"].start()));
         _rx_gains[name] = gain;
 
@@ -474,7 +474,7 @@ void rfx_xcvr::rx_set(const wax::obj &key_, const wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        this->set_rx_gain(val.as<float>(), key.name);
+        this->set_rx_gain(val.as<double>(), key.name);
         return;
 
     case SUBDEV_PROP_ANTENNA:
@@ -571,7 +571,7 @@ void rfx_xcvr::tx_set(const wax::obj &key_, const wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        this->set_tx_gain(val.as<float>(), key.name);
+        this->set_tx_gain(val.as<double>(), key.name);
         return;
 
     case SUBDEV_PROP_ANTENNA:
diff --git a/host/lib/usrp/dboard/db_tvrx.cpp b/host/lib/usrp/dboard/db_tvrx.cpp
index 2508555d0..4eb29c3e8 100644
--- a/host/lib/usrp/dboard/db_tvrx.cpp
+++ b/host/lib/usrp/dboard/db_tvrx.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -119,8 +119,8 @@ static uhd::dict<std::string, gain_range_t> get_tvrx_gain_ranges(void) {
     double ifmax = tvrx_if_gains_db.back();
 
     return map_list_of
-        ("RF", gain_range_t(float(rfmin), float(rfmax), float((rfmax-rfmin)/4096.0)))
-        ("IF", gain_range_t(float(ifmin), float(ifmax), float((ifmax-ifmin)/4096.0)))
+        ("RF", gain_range_t(rfmin, rfmax, (rfmax-rfmin)/4096.0))
+        ("IF", gain_range_t(ifmin, ifmax, (ifmax-ifmin)/4096.0))
     ;
 }
 
@@ -141,14 +141,14 @@ public:
     void rx_set(const wax::obj &key, const wax::obj &val);
 
 private:
-    uhd::dict<std::string, float> _gains;
+    uhd::dict<std::string, double> _gains;
     double _lo_freq;
     tuner_4937di5_regs_t _tuner_4937di5_regs;
     boost::uint8_t _tuner_4937di5_addr(void){
         return (this->get_iface()->get_special_props().mangle_i2c_addrs)? 0x61 : 0x60; //ok really? we could rename that call
     };
 
-    void set_gain(float gain, const std::string &name);
+    void set_gain(double gain, const std::string &name);
     void set_freq(double freq);
 
     void update_regs(void){
@@ -275,7 +275,7 @@ static double gain_interp(double gain, boost::array<double, 17> db_vector, boost
  * \return dac voltage value
  */
 
-static float rf_gain_to_voltage(float gain, double lo_freq){
+static double rf_gain_to_voltage(double gain, double lo_freq){
     //clip the input
     gain = get_tvrx_gain_ranges()["RF"].clip(gain);
 
@@ -293,7 +293,7 @@ static float rf_gain_to_voltage(float gain, double lo_freq){
         "tvrx RF AGC gain: %f dB, dac_volts: %f V"
     ) % gain % dac_volts << std::endl;
 
-    return float(dac_volts);
+    return dac_volts;
 }
 
 /*!
@@ -303,7 +303,7 @@ static float rf_gain_to_voltage(float gain, double lo_freq){
  * \return dac voltage value
  */
 
-static float if_gain_to_voltage(float gain){
+static double if_gain_to_voltage(double gain){
     //clip the input
     gain = get_tvrx_gain_ranges()["IF"].clip(gain);
 
@@ -316,10 +316,10 @@ static float if_gain_to_voltage(float gain){
         "tvrx IF AGC gain: %f dB, dac_volts: %f V"
     ) % gain % dac_volts << std::endl;
 
-    return float(dac_volts);
+    return dac_volts;
 }
 
-void tvrx::set_gain(float gain, const std::string &name){
+void tvrx::set_gain(double gain, const std::string &name){
     assert_has(get_tvrx_gain_ranges().keys(), name, "tvrx gain name");
     if (name == "RF"){
         this->get_iface()->write_aux_dac(dboard_iface::UNIT_RX, dboard_iface::AUX_DAC_B, rf_gain_to_voltage(gain, _lo_freq));
@@ -473,7 +473,7 @@ void tvrx::rx_set(const wax::obj &key_, const wax::obj &val){
     //handle the get request conditioned on the key
     switch(key.as<subdev_prop_t>()){
     case SUBDEV_PROP_GAIN:
-        this->set_gain(val.as<float>(), key.name);
+        this->set_gain(val.as<double>(), key.name);
         return;
 
     case SUBDEV_PROP_FREQ:
diff --git a/host/lib/usrp/dboard/db_unknown.cpp b/host/lib/usrp/dboard/db_unknown.cpp
index 168e1971c..d91d58409 100644
--- a/host/lib/usrp/dboard/db_unknown.cpp
+++ b/host/lib/usrp/dboard/db_unknown.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -115,7 +115,7 @@ void unknown_rx::rx_get(const wax::obj &key_, wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        val = float(0);
+        val = double(0);
         return;
 
     case SUBDEV_PROP_GAIN_RANGE:
@@ -173,7 +173,7 @@ void unknown_rx::rx_set(const wax::obj &key_, const wax::obj &val){
     switch(key.as<subdev_prop_t>()){
 
     case SUBDEV_PROP_GAIN:
-        UHD_ASSERT_THROW(val.as<float>() == float(0));
+        UHD_ASSERT_THROW(val.as<double>() == double(0));
         return;
 
     case SUBDEV_PROP_ANTENNA:
@@ -217,7 +217,7 @@ void unknown_tx::tx_get(const wax::obj &key_, wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        val = float(0);
+        val = double(0);
         return;
 
     case SUBDEV_PROP_GAIN_RANGE:
@@ -275,7 +275,7 @@ void unknown_tx::tx_set(const wax::obj &key_, const wax::obj &val){
     switch(key.as<subdev_prop_t>()){
 
     case SUBDEV_PROP_GAIN:
-        UHD_ASSERT_THROW(val.as<float>() == float(0));
+        UHD_ASSERT_THROW(val.as<double>() == double(0));
         return;
 
     case SUBDEV_PROP_ANTENNA:
diff --git a/host/lib/usrp/dboard/db_wbx.cpp b/host/lib/usrp/dboard/db_wbx.cpp
index dd5bd600b..135997789 100644
--- a/host/lib/usrp/dboard/db_wbx.cpp
+++ b/host/lib/usrp/dboard/db_wbx.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -94,11 +94,11 @@ static const prop_names_t wbx_tx_antennas = list_of("TX/RX");
 static const prop_names_t wbx_rx_antennas = list_of("TX/RX")("RX2");
 
 static const uhd::dict<std::string, gain_range_t> wbx_tx_gain_ranges = map_list_of
-    ("PGA0", gain_range_t(0, 25, float(0.05)))
+    ("PGA0", gain_range_t(0, 25, 0.05))
 ;
 
 static const uhd::dict<std::string, gain_range_t> wbx_rx_gain_ranges = map_list_of
-    ("PGA0", gain_range_t(0, 31.5, float(0.5)))
+    ("PGA0", gain_range_t(0, 31.5, 0.5))
 ;
 
 /***********************************************************************
@@ -116,7 +116,7 @@ public:
     void tx_set(const wax::obj &key, const wax::obj &val);
 
 private:
-    uhd::dict<std::string, float> _tx_gains, _rx_gains;
+    uhd::dict<std::string, double> _tx_gains, _rx_gains;
     double       _rx_lo_freq, _tx_lo_freq;
     std::string  _tx_ant, _rx_ant;
 
@@ -124,8 +124,8 @@ private:
     void set_tx_lo_freq(double freq);
     void set_rx_ant(const std::string &ant);
     void set_tx_ant(const std::string &ant);
-    void set_rx_gain(float gain, const std::string &name);
-    void set_tx_gain(float gain, const std::string &name);
+    void set_rx_gain(double gain, const std::string &name);
+    void set_tx_gain(double gain, const std::string &name);
 
     void update_atr(void);
 
@@ -196,12 +196,12 @@ wbx_xcvr::~wbx_xcvr(void){
 /***********************************************************************
  * Gain Handling
  **********************************************************************/
-static int rx_pga0_gain_to_iobits(float &gain){
+static int rx_pga0_gain_to_iobits(double &gain){
     //clip the input
     gain = wbx_rx_gain_ranges["PGA0"].clip(gain);
 
     //convert to attenuation and update iobits for atr
-    float attn = wbx_rx_gain_ranges["PGA0"].stop() - gain;
+    double attn = wbx_rx_gain_ranges["PGA0"].stop() - gain;
 
     //calculate the attenuation
     int attn_code = boost::math::iround(attn*2);
@@ -212,21 +212,21 @@ static int rx_pga0_gain_to_iobits(float &gain){
     ) % attn % attn_code % (iobits & RX_ATTN_MASK) % RX_ATTN_MASK << std::endl;
 
     //the actual gain setting
-    gain = wbx_rx_gain_ranges["PGA0"].stop() - float(attn_code)/2;
+    gain = wbx_rx_gain_ranges["PGA0"].stop() - double(attn_code)/2;
 
     return iobits;
 }
 
-static float tx_pga0_gain_to_dac_volts(float &gain){
+static double tx_pga0_gain_to_dac_volts(double &gain){
     //clip the input
     gain = wbx_tx_gain_ranges["PGA0"].clip(gain);
 
     //voltage level constants
-    static const float max_volts = float(0.5), min_volts = float(1.4);
-    static const float slope = (max_volts-min_volts)/wbx_tx_gain_ranges["PGA0"].stop();
+    static const double max_volts = 0.5, min_volts = 1.4;
+    static const double slope = (max_volts-min_volts)/wbx_tx_gain_ranges["PGA0"].stop();
 
     //calculate the voltage for the aux dac
-    float dac_volts = gain*slope + min_volts;
+    double dac_volts = gain*slope + min_volts;
 
     if (wbx_debug) std::cerr << boost::format(
         "WBX TX Gain: %f dB, dac_volts: %f V"
@@ -238,10 +238,10 @@ static float tx_pga0_gain_to_dac_volts(float &gain){
     return dac_volts;
 }
 
-void wbx_xcvr::set_tx_gain(float gain, const std::string &name){
+void wbx_xcvr::set_tx_gain(double gain, const std::string &name){
     assert_has(wbx_tx_gain_ranges.keys(), name, "wbx tx gain name");
     if(name == "PGA0"){
-        float dac_volts = tx_pga0_gain_to_dac_volts(gain);
+        double dac_volts = tx_pga0_gain_to_dac_volts(gain);
         _tx_gains[name] = gain;
 
         //write the new voltage to the aux dac
@@ -250,7 +250,7 @@ void wbx_xcvr::set_tx_gain(float gain, const std::string &name){
     else UHD_THROW_INVALID_CODE_PATH();
 }
 
-void wbx_xcvr::set_rx_gain(float gain, const std::string &name){
+void wbx_xcvr::set_rx_gain(double gain, const std::string &name){
     assert_has(wbx_rx_gain_ranges.keys(), name, "wbx rx gain name");
     if(name == "PGA0"){
         rx_pga0_gain_to_iobits(gain);
@@ -544,7 +544,7 @@ void wbx_xcvr::rx_set(const wax::obj &key_, const wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        this->set_rx_gain(val.as<float>(), key.name);
+        this->set_rx_gain(val.as<double>(), key.name);
         return;
 
     case SUBDEV_PROP_ANTENNA:
@@ -645,7 +645,7 @@ void wbx_xcvr::tx_set(const wax::obj &key_, const wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        this->set_tx_gain(val.as<float>(), key.name);
+        this->set_tx_gain(val.as<double>(), key.name);
         return;
 
     case SUBDEV_PROP_ANTENNA:
diff --git a/host/lib/usrp/dboard/db_xcvr2450.cpp b/host/lib/usrp/dboard/db_xcvr2450.cpp
index e76727bec..6fb5a26a8 100644
--- a/host/lib/usrp/dboard/db_xcvr2450.cpp
+++ b/host/lib/usrp/dboard/db_xcvr2450.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -73,8 +73,8 @@ using namespace boost::assign;
 static const bool xcvr2450_debug = false;
 
 static const freq_range_t xcvr_freq_range = list_of
-    (range_t<double>(2.4e9, 2.5e9))
-    (range_t<double>(4.9e9, 6.0e9))
+    (range_t(2.4e9, 2.5e9))
+    (range_t(4.9e9, 6.0e9))
 ;
 
 static const prop_names_t xcvr_antennas = list_of("J1")("J2");
@@ -85,9 +85,9 @@ static const uhd::dict<std::string, gain_range_t> xcvr_tx_gain_ranges = map_list
 ;
 static const uhd::dict<std::string, gain_range_t> xcvr_rx_gain_ranges = map_list_of
     ("LNA", gain_range_t(list_of
-        (range_t<float>(0))
-        (range_t<float>(15))
-        (range_t<float>(30.5))
+        (range_t(0))
+        (range_t(15))
+        (range_t(30.5))
     ))
     ("VGA", gain_range_t(0, 62, 2.0))
 ;
@@ -109,7 +109,7 @@ public:
 private:
     double _lo_freq;
     double _rx_bandwidth, _tx_bandwidth;
-    uhd::dict<std::string, float> _tx_gains, _rx_gains;
+    uhd::dict<std::string, double> _tx_gains, _rx_gains;
     std::string _tx_ant, _rx_ant;
     int _ad9515div;
     max2829_regs_t _max2829_regs;
@@ -117,8 +117,8 @@ private:
     void set_lo_freq(double target_freq);
     void set_tx_ant(const std::string &ant);
     void set_rx_ant(const std::string &ant);
-    void set_tx_gain(float gain, const std::string &name);
-    void set_rx_gain(float gain, const std::string &name);
+    void set_tx_gain(double gain, const std::string &name);
+    void set_rx_gain(double gain, const std::string &name);
     void set_rx_bandwidth(double bandwidth);
     void set_tx_bandwidth(double bandwidth);
 
@@ -150,12 +150,12 @@ private:
      * Read the RSSI from the aux adc
      * \return the rssi in dB
      */
-    float get_rssi(void){
+    double get_rssi(void){
         //constants for the rssi calculation
-        static const float min_v = float(0.5), max_v = float(2.5);
-        static const float rssi_dyn_range = 60;
+        static const double min_v = 0.5, max_v = 2.5;
+        static const double rssi_dyn_range = 60;
         //calculate the rssi from the voltage
-        float voltage = this->get_iface()->read_aux_adc(dboard_iface::UNIT_RX, dboard_iface::AUX_ADC_B);
+        double voltage = this->get_iface()->read_aux_adc(dboard_iface::UNIT_RX, dboard_iface::AUX_ADC_B);
         return rssi_dyn_range*(voltage - min_v)/(max_v - min_v);
     }
 };
@@ -355,14 +355,14 @@ void xcvr2450::set_rx_ant(const std::string &ant){
  * \param gain the requested gain in dB
  * \return 6 bit the register value
  */
-static int gain_to_tx_vga_reg(float &gain){
+static int gain_to_tx_vga_reg(double &gain){
     //calculate the register value
     int reg = std::clip(boost::math::iround(gain*60/30.0) + 3, 0, 63);
 
     //calculate the actual gain value
     if (reg < 4)       gain = 0;
-    else if (reg < 48) gain = float(reg/2 - 1);
-    else               gain = float(reg/2.0 - 1.5);
+    else if (reg < 48) gain = double(reg/2 - 1);
+    else               gain = double(reg/2.0 - 1.5);
 
     //return register value
     return reg;
@@ -374,7 +374,7 @@ static int gain_to_tx_vga_reg(float &gain){
  * \param gain the requested gain in dB
  * \return gain enum value
  */
-static max2829_regs_t::tx_baseband_gain_t gain_to_tx_bb_reg(float &gain){
+static max2829_regs_t::tx_baseband_gain_t gain_to_tx_bb_reg(double &gain){
     int reg = std::clip(boost::math::iround(gain*3/5.0), 0, 3);
     switch(reg){
     case 0:
@@ -399,9 +399,9 @@ static max2829_regs_t::tx_baseband_gain_t gain_to_tx_bb_reg(float &gain){
  * \param gain the requested gain in dB
  * \return 5 bit the register value
  */
-static int gain_to_rx_vga_reg(float &gain){
+static int gain_to_rx_vga_reg(double &gain){
     int reg = std::clip(boost::math::iround(gain/2.0), 0, 31);
-    gain = float(reg*2);
+    gain = double(reg*2);
     return reg;
 }
 
@@ -411,7 +411,7 @@ static int gain_to_rx_vga_reg(float &gain){
  * \param gain the requested gain in dB
  * \return 2 bit the register value
  */
-static int gain_to_rx_lna_reg(float &gain){
+static int gain_to_rx_lna_reg(double &gain){
     int reg = std::clip(boost::math::iround(gain*2/30.5) + 1, 0, 3);
     switch(reg){
     case 0:
@@ -422,7 +422,7 @@ static int gain_to_rx_lna_reg(float &gain){
     return reg;
 }
 
-void xcvr2450::set_tx_gain(float gain, const std::string &name){
+void xcvr2450::set_tx_gain(double gain, const std::string &name){
     assert_has(xcvr_tx_gain_ranges.keys(), name, "xcvr tx gain name");
     if (name == "VGA"){
         _max2829_regs.tx_vga_gain = gain_to_tx_vga_reg(gain);
@@ -436,7 +436,7 @@ void xcvr2450::set_tx_gain(float gain, const std::string &name){
     _tx_gains[name] = gain;
 }
 
-void xcvr2450::set_rx_gain(float gain, const std::string &name){
+void xcvr2450::set_rx_gain(double gain, const std::string &name){
     assert_has(xcvr_rx_gain_ranges.keys(), name, "xcvr rx gain name");
     if (name == "VGA"){
         _max2829_regs.rx_vga_gain = gain_to_rx_vga_reg(gain);
@@ -643,7 +643,7 @@ void xcvr2450::rx_set(const wax::obj &key_, const wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        this->set_rx_gain(val.as<float>(), key.name);
+        this->set_rx_gain(val.as<double>(), key.name);
         return;
 
     case SUBDEV_PROP_ANTENNA:
@@ -742,7 +742,7 @@ void xcvr2450::tx_set(const wax::obj &key_, const wax::obj &val){
         return;
 
     case SUBDEV_PROP_GAIN:
-        this->set_tx_gain(val.as<float>(), key.name);
+        this->set_tx_gain(val.as<double>(), key.name);
         return;
 
     case SUBDEV_PROP_BANDWIDTH:
diff --git a/host/lib/usrp/usrp2/gps_ctrl.cpp b/host/lib/usrp/gps_ctrl.cpp
index 2273b2cd9..3c7c00134 100644
--- a/host/lib/usrp/usrp2/gps_ctrl.cpp
+++ b/host/lib/usrp/gps_ctrl.cpp
@@ -15,7 +15,7 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //
 
-#include "gps_ctrl.hpp"
+#include <uhd/usrp/gps_ctrl.hpp>
 #include <uhd/utils/assert.hpp>
 #include <boost/cstdint.hpp>
 #include <string>
@@ -30,14 +30,15 @@ using namespace boost::posix_time;
 using namespace boost::algorithm;
 
 /*!
- * A usrp2 GPS control for Jackson Labs devices
+ * A GPS control for Jackson Labs devices (and other NMEA compatible GPS's)
  */
 
 //TODO: multiple baud rate support (requires mboard_impl changes for poking UART registers)
-class usrp2_gps_ctrl_impl : public usrp2_gps_ctrl{
+class gps_ctrl_impl : public gps_ctrl{
 public:
-  usrp2_gps_ctrl_impl(usrp2_iface::sptr iface){
-    _iface = iface;
+  gps_ctrl_impl(gps_send_fn_t send, gps_recv_fn_t recv){
+    _send = send;
+    _recv = recv;
 
     std::string reply;
     bool i_heard_some_nmea = false, i_heard_something_weird = false;
@@ -47,8 +48,8 @@ public:
 //    set_uart_baud_rate(GPS_UART, 115200);
     //first we look for a Jackson Labs Firefly (since that's what we sell with the USRP2+...)
 
-    _iface->read_uart(GPS_UART); //get whatever junk is in the rx buffer right now, and throw it away
-    _iface->write_uart(GPS_UART, "HAAAY GUYYYYS\n"); //to elicit a response from the Firefly
+    _recv(); //get whatever junk is in the rx buffer right now, and throw it away
+    _send("HAAAY GUYYYYS\n"); //to elicit a response from the Firefly
 
     //then we loop until we either timeout, or until we get a response that indicates we're a JL device
     int timeout = GPS_TIMEOUT_TRIES;
@@ -60,13 +61,14 @@ public:
       }
       else if(reply.substr(0, 3) == "$GP") i_heard_some_nmea = true; //but keep looking for that "Command Error" response
       else if(reply.length() != 0) i_heard_something_weird = true; //probably wrong baud rate
+      boost::this_thread::sleep(boost::posix_time::milliseconds(200));
     }
 
     if((i_heard_some_nmea) && (gps_type != GPS_TYPE_JACKSON_LABS)) gps_type = GPS_TYPE_GENERIC_NMEA;
 
     //otherwise, we can try some other common baud rates looking to see if a GPS is connected (todo, later)
     if((gps_type == GPS_TYPE_NONE) && i_heard_something_weird) {
-      std::cout << "Invalid reply, possible incorrect baud rate" << std::endl;
+      std::cout << "GPS invalid reply \"" << reply << "\", assuming none available" << std::endl;
     }
 
     bool found_gprmc = false;
@@ -78,15 +80,15 @@ public:
       //none of these should issue replies so we don't bother looking for them
       //we have to sleep between commands because the JL device, despite not acking, takes considerable time to process each command.
        boost::this_thread::sleep(boost::posix_time::milliseconds(FIREFLY_STUPID_DELAY_MS));
-      _iface->write_uart(GPS_UART, "SYST:COMM:SER:ECHO OFF\n");
+      _send("SYST:COMM:SER:ECHO OFF\n");
        boost::this_thread::sleep(boost::posix_time::milliseconds(FIREFLY_STUPID_DELAY_MS));
-      _iface->write_uart(GPS_UART, "SYST:COMM:SER:PRO OFF\n");
+      _send("SYST:COMM:SER:PRO OFF\n");
        boost::this_thread::sleep(boost::posix_time::milliseconds(FIREFLY_STUPID_DELAY_MS));
-      _iface->write_uart(GPS_UART, "GPS:GPGGA 0\n");
+      _send("GPS:GPGGA 0\n");
        boost::this_thread::sleep(boost::posix_time::milliseconds(FIREFLY_STUPID_DELAY_MS));
-      _iface->write_uart(GPS_UART, "GPS:GGAST 0\n");
+      _send("GPS:GGAST 0\n");
        boost::this_thread::sleep(boost::posix_time::milliseconds(FIREFLY_STUPID_DELAY_MS));
-      _iface->write_uart(GPS_UART, "GPS:GPRMC 1\n");
+      _send("GPS:GPRMC 1\n");
        boost::this_thread::sleep(boost::posix_time::milliseconds(FIREFLY_STUPID_DELAY_MS));
 
 //      break;
@@ -119,15 +121,15 @@ public:
 
   }
 
-  ~usrp2_gps_ctrl_impl(void){
+  ~gps_ctrl_impl(void){
 
   }
 
+//TODO: this isn't generalizeable to non-USRP2 USRPs.
   std::string safe_gps_read() {
     std::string reply;
     try {
-        reply = _iface->read_uart(GPS_UART);
-  	    //std::cerr << "Got reply from GPS: " << reply.c_str() << " with length = " << reply.length() << std::endl;
+        reply = _recv();
     } catch (std::runtime_error err) {
       if(err.what() != std::string("usrp2 no control response")) throw; //sorry can't cope with that
       else { //we don't actually have a GPS installed
@@ -185,7 +187,8 @@ public:
   }
 
 private:
-  usrp2_iface::sptr _iface;
+  gps_send_fn_t _send;
+  gps_recv_fn_t _recv;
 
   enum {
     GPS_TYPE_JACKSON_LABS,
@@ -193,8 +196,8 @@ private:
     GPS_TYPE_NONE
   } gps_type;
 
-  static const int GPS_UART = 2; //TODO: this should be plucked from fw_common.h or memory_map.h or somewhere in common with the firmware
   static const int GPS_TIMEOUT_TRIES = 5;
+  static const int GPS_TIMEOUT_DELAY_MS = 200;
   static const int FIREFLY_STUPID_DELAY_MS = 200;
 
 };
@@ -202,6 +205,6 @@ private:
 /***********************************************************************
  * Public make function for the GPS control
  **********************************************************************/
-usrp2_gps_ctrl::sptr usrp2_gps_ctrl::make(usrp2_iface::sptr iface){
-    return sptr(new usrp2_gps_ctrl_impl(iface));
+gps_ctrl::sptr gps_ctrl::make(gps_send_fn_t send, gps_recv_fn_t recv){
+    return sptr(new gps_ctrl_impl(send, recv));
 }
diff --git a/host/lib/usrp/mboard_eeprom.cpp b/host/lib/usrp/mboard_eeprom.cpp
index 863a80191..f7f4b2c68 100644
--- a/host/lib/usrp/mboard_eeprom.cpp
+++ b/host/lib/usrp/mboard_eeprom.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -97,8 +97,14 @@ static void load_n100(mboard_eeprom_t &mb_eeprom, i2c_iface &iface){
         N100_EEPROM_ADDR, USRP_N100_OFFSETS["name"], NAME_MAX_LEN
     ));
 
-    //empty serial correction: use the mac address
-    if (mb_eeprom["serial"].empty()) mb_eeprom["serial"] = mb_eeprom["mac-addr"];
+    //Empty serial correction: use the mac address to determine serial.
+    //Older usrp2 models don't have a serial burned into EEPROM.
+    //The lower mac address bits will function as the serial number.
+    if (mb_eeprom["serial"].empty()){
+        byte_vector_t mac_addr_bytes = mac_addr_t::from_string(mb_eeprom["mac-addr"]).to_bytes();
+        unsigned serial = mac_addr_bytes.at(5) | (unsigned(mac_addr_bytes.at(4) & 0x0f) << 8);
+        mb_eeprom["serial"] = boost::lexical_cast<std::string>(serial);
+    }
 }
 
 static void store_n100(const mboard_eeprom_t &mb_eeprom, i2c_iface &iface){
diff --git a/host/lib/usrp/misc_utils.cpp b/host/lib/usrp/misc_utils.cpp
index 5856d706f..02f4b216d 100644
--- a/host/lib/usrp/misc_utils.cpp
+++ b/host/lib/usrp/misc_utils.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -39,24 +39,24 @@ static gain_range_t get_codec_gain_range(wax::obj codec, const std::string &name
     return codec[named_prop_t(CODEC_PROP_GAIN_RANGE, name)].as<gain_range_t>();
 }
 
-static float get_codec_gain_i(wax::obj codec, const std::string &name){
-    return codec[named_prop_t(CODEC_PROP_GAIN_I, name)].as<float>();
+static double get_codec_gain_i(wax::obj codec, const std::string &name){
+    return codec[named_prop_t(CODEC_PROP_GAIN_I, name)].as<double>();
 }
 
-static float get_codec_gain_q(wax::obj codec, const std::string &name){
-    return codec[named_prop_t(CODEC_PROP_GAIN_Q, name)].as<float>();
+static double get_codec_gain_q(wax::obj codec, const std::string &name){
+    return codec[named_prop_t(CODEC_PROP_GAIN_Q, name)].as<double>();
 }
 
-static void set_codec_gain_both(wax::obj codec, const std::string &name, float gain){
+static void set_codec_gain_both(wax::obj codec, const std::string &name, double gain){
     codec[named_prop_t(CODEC_PROP_GAIN_I, name)] = gain;
     codec[named_prop_t(CODEC_PROP_GAIN_Q, name)] = gain;
 }
 
-static void set_codec_gain_i(wax::obj codec, const std::string &name, float gain){
+static void set_codec_gain_i(wax::obj codec, const std::string &name, double gain){
     codec[named_prop_t(CODEC_PROP_GAIN_I, name)] = gain;
 }
 
-static void set_codec_gain_q(wax::obj codec, const std::string &name, float gain){
+static void set_codec_gain_q(wax::obj codec, const std::string &name, double gain){
     codec[named_prop_t(CODEC_PROP_GAIN_Q, name)] = gain;
 }
 
@@ -64,15 +64,15 @@ static void set_codec_gain_q(wax::obj codec, const std::string &name, float gain
  * subdev gain group helper functions:
  *    do this so we dont have to bind a templated function
  **********************************************************************/
-static float get_subdev_gain(wax::obj subdev, const std::string &name){
-    return subdev[named_prop_t(SUBDEV_PROP_GAIN, name)].as<float>();
+static double get_subdev_gain(wax::obj subdev, const std::string &name){
+    return subdev[named_prop_t(SUBDEV_PROP_GAIN, name)].as<double>();
 }
 
 static gain_range_t get_subdev_gain_range(wax::obj subdev, const std::string &name){
     return subdev[named_prop_t(SUBDEV_PROP_GAIN_RANGE, name)].as<gain_range_t>();
 }
 
-static void set_subdev_gain(wax::obj subdev, const std::string &name, float gain){
+static void set_subdev_gain(wax::obj subdev, const std::string &name, double gain){
     subdev[named_prop_t(SUBDEV_PROP_GAIN, name)] = gain;
 }
 
diff --git a/host/lib/usrp/multi_usrp.cpp b/host/lib/usrp/multi_usrp.cpp
index 876f1a3fc..48eec28c1 100644
--- a/host/lib/usrp/multi_usrp.cpp
+++ b/host/lib/usrp/multi_usrp.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -117,26 +117,32 @@ public:
         return _mboard(0)[MBOARD_PROP_TIME_NOW].as<time_spec_t>();
     }
 
+    time_spec_t get_time_last_pps(void){
+        return _mboard(0)[MBOARD_PROP_TIME_PPS].as<time_spec_t>();
+    }
+
     void set_time_next_pps(const time_spec_t &time_spec){
         for (size_t m = 0; m < get_num_mboards(); m++){
-            _mboard(m)[MBOARD_PROP_TIME_NEXT_PPS] = time_spec;
+            _mboard(m)[MBOARD_PROP_TIME_PPS] = time_spec;
         }
     }
 
     void set_time_unknown_pps(const time_spec_t &time_spec){
-        std::cout << "Set time with unknown pps edge:" << std::endl;
-        std::cout << "    1) set times next pps (race condition)" << std::endl;
-        set_time_next_pps(time_spec);
-        boost::this_thread::sleep(boost::posix_time::seconds(1));
-
-        std::cout << "    2) catch seconds rollover at pps edge" << std::endl;
-        time_t last_secs = 0, curr_secs = 0;
-        while(curr_secs == last_secs){
-            last_secs = curr_secs;
-            curr_secs = get_time_now().get_full_secs();
+        std::cout << "    1) catch time transition at pps edge" << std::endl;
+        time_spec_t time_start = get_time_now();
+        time_spec_t time_start_last_pps = get_time_last_pps();
+        while(true){
+            if (get_time_last_pps() != time_start_last_pps) break;
+            if ((get_time_now() - time_start) > time_spec_t(1.1)){
+                throw std::runtime_error(
+                    "Board 0 may not be getting a PPS signal!\n"
+                    "No PPS detected within the time interval.\n"
+                    "See the application notes for your device.\n"
+                );
+            }
         }
 
-        std::cout << "    3) set times next pps (synchronously)" << std::endl;
+        std::cout << "    2) set times next pps (synchronously)" << std::endl;
         set_time_next_pps(time_spec);
         boost::this_thread::sleep(boost::posix_time::seconds(1));
 
@@ -233,11 +239,11 @@ public:
         return add_dsp_shift(_rx_subdev(chan)[SUBDEV_PROP_FREQ_RANGE].as<freq_range_t>(), _rx_dsp(chan/rx_cpm()));
     }
 
-    void set_rx_gain(float gain, const std::string &name, size_t chan){
+    void set_rx_gain(double gain, const std::string &name, size_t chan){
         return _rx_gain_group(chan)->set_value(gain, name);
     }
 
-    float get_rx_gain(const std::string &name, size_t chan){
+    double get_rx_gain(const std::string &name, size_t chan){
         return _rx_gain_group(chan)->get_value(name);
     }
 
@@ -273,8 +279,8 @@ public:
         return _rx_subdev(chan)[SUBDEV_PROP_BANDWIDTH].as<double>();
     }
 
-    float read_rssi(size_t chan){
-        return _rx_subdev(chan)[SUBDEV_PROP_RSSI].as<float>();
+    double read_rssi(size_t chan){
+        return _rx_subdev(chan)[SUBDEV_PROP_RSSI].as<double>();
     }
 
     dboard_iface::sptr get_rx_dboard_iface(size_t chan){
@@ -331,11 +337,11 @@ public:
         return add_dsp_shift(_tx_subdev(chan)[SUBDEV_PROP_FREQ_RANGE].as<freq_range_t>(), _tx_dsp(chan/tx_cpm()));
     }
 
-    void set_tx_gain(float gain, const std::string &name, size_t chan){
+    void set_tx_gain(double gain, const std::string &name, size_t chan){
         return _tx_gain_group(chan)->set_value(gain, name);
     }
 
-    float get_tx_gain(const std::string &name, size_t chan){
+    double get_tx_gain(const std::string &name, size_t chan){
         return _tx_gain_group(chan)->get_value(name);
     }
 
diff --git a/host/lib/usrp/single_usrp.cpp b/host/lib/usrp/single_usrp.cpp
index a0456d1f0..c37449c5f 100644
--- a/host/lib/usrp/single_usrp.cpp
+++ b/host/lib/usrp/single_usrp.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -106,12 +106,16 @@ public:
         return _mboard()[MBOARD_PROP_TIME_NOW].as<time_spec_t>();
     }
 
+    time_spec_t get_time_last_pps(void){
+        return _mboard()[MBOARD_PROP_TIME_PPS].as<time_spec_t>();
+    }
+
     void set_time_now(const time_spec_t &time_spec){
         _mboard()[MBOARD_PROP_TIME_NOW] = time_spec;
     }
 
     void set_time_next_pps(const time_spec_t &time_spec){
-        _mboard()[MBOARD_PROP_TIME_NEXT_PPS] = time_spec;
+        _mboard()[MBOARD_PROP_TIME_PPS] = time_spec;
     }
 
     void issue_stream_cmd(const stream_cmd_t &stream_cmd){
@@ -160,11 +164,11 @@ public:
         return add_dsp_shift(_rx_subdev(chan)[SUBDEV_PROP_FREQ_RANGE].as<freq_range_t>(), _rx_dsp());
     }
 
-    void set_rx_gain(float gain, const std::string &name, size_t chan){
+    void set_rx_gain(double gain, const std::string &name, size_t chan){
         return _rx_gain_group(chan)->set_value(gain, name);
     }
 
-    float get_rx_gain(const std::string &name, size_t chan){
+    double get_rx_gain(const std::string &name, size_t chan){
         return _rx_gain_group(chan)->get_value(name);
     }
 
@@ -200,8 +204,8 @@ public:
         return _rx_subdev(chan)[SUBDEV_PROP_BANDWIDTH].as<double>();
     }
 
-    float read_rssi(size_t chan){
-        return _rx_subdev(chan)[SUBDEV_PROP_RSSI].as<float>();
+    double read_rssi(size_t chan){
+        return _rx_subdev(chan)[SUBDEV_PROP_RSSI].as<double>();
     }
 
     dboard_iface::sptr get_rx_dboard_iface(size_t chan){
@@ -246,11 +250,11 @@ public:
         return add_dsp_shift(_tx_subdev(chan)[SUBDEV_PROP_FREQ_RANGE].as<freq_range_t>(), _tx_dsp());
     }
 
-    void set_tx_gain(float gain, const std::string &name, size_t chan){
+    void set_tx_gain(double gain, const std::string &name, size_t chan){
         return _tx_gain_group(chan)->set_value(gain, name);
     }
 
-    float get_tx_gain(const std::string &name, size_t chan){
+    double get_tx_gain(const std::string &name, size_t chan){
         return _tx_gain_group(chan)->get_value(name);
     }
 
diff --git a/host/lib/usrp/subdev_spec.cpp b/host/lib/usrp/subdev_spec.cpp
index 95d2cbb12..51c88bda3 100644
--- a/host/lib/usrp/subdev_spec.cpp
+++ b/host/lib/usrp/subdev_spec.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -16,15 +16,21 @@
 //
 
 #include <uhd/usrp/subdev_spec.hpp>
-#include <uhd/utils/algorithm.hpp>
+#include <boost/algorithm/string.hpp> //for split
+#include <boost/tokenizer.hpp>
 #include <boost/format.hpp>
 #include <boost/foreach.hpp>
 #include <stdexcept>
 #include <sstream>
+#include <vector>
 
 using namespace uhd;
 using namespace uhd::usrp;
 
+#define pair_tokenizer(inp) \
+    boost::tokenizer<boost::char_separator<char> > \
+    (inp, boost::char_separator<char>(" "))
+
 subdev_spec_pair_t::subdev_spec_pair_t(
     const std::string &db_name, const std::string &sd_name
 ):
@@ -39,9 +45,9 @@ bool usrp::operator==(const subdev_spec_pair_t &lhs, const subdev_spec_pair_t &r
 }
 
 subdev_spec_t::subdev_spec_t(const std::string &markup){
-    BOOST_FOREACH(const std::string &pair, std::split_string(markup)){
+    BOOST_FOREACH(const std::string &pair, pair_tokenizer(markup)){
         if (pair == "") continue;
-        std::vector<std::string> db_sd = std::split_string(pair, ":");
+        std::vector<std::string> db_sd; boost::split(db_sd, pair, boost::is_any_of(":"));
         switch(db_sd.size()){
         case 1: this->push_back(subdev_spec_pair_t("", db_sd.front())); break;
         case 2: this->push_back(subdev_spec_pair_t(db_sd.front(), db_sd.back())); break;
diff --git a/host/lib/usrp/usrp1/CMakeLists.txt b/host/lib/usrp/usrp1/CMakeLists.txt
index 519e17bfa..9e50f5728 100644
--- a/host/lib/usrp/usrp1/CMakeLists.txt
+++ b/host/lib/usrp/usrp1/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -38,6 +38,7 @@ IF(ENABLE_USRP1)
         ${CMAKE_CURRENT_SOURCE_DIR}/dsp_impl.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/io_impl.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/mboard_impl.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/soft_time_ctrl.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/usrp1_iface.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/usrp1_iface.hpp
         ${CMAKE_CURRENT_SOURCE_DIR}/usrp1_impl.cpp
diff --git a/host/lib/usrp/usrp1/codec_ctrl.cpp b/host/lib/usrp/usrp1/codec_ctrl.cpp
index 18f794632..f3816b377 100644
--- a/host/lib/usrp/usrp1/codec_ctrl.cpp
+++ b/host/lib/usrp/usrp1/codec_ctrl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -35,7 +35,7 @@ using namespace uhd;
 
 static const bool codec_debug = false;
 
-const gain_range_t usrp1_codec_ctrl::tx_pga_gain_range(-20, 0, float(0.1));
+const gain_range_t usrp1_codec_ctrl::tx_pga_gain_range(-20, 0, double(0.1));
 const gain_range_t usrp1_codec_ctrl::rx_pga_gain_range(0, 20, 1);
 
 /***********************************************************************
@@ -50,17 +50,18 @@ public:
     ~usrp1_codec_ctrl_impl(void);
 
     //aux adc and dac control
-    float read_aux_adc(aux_adc_t which);
-    void write_aux_dac(aux_dac_t which, float volts);
+    double read_aux_adc(aux_adc_t which);
+    void write_aux_dac(aux_dac_t which, double volts);
 
     //duc control
     void set_duc_freq(double freq);
+    void enable_tx_digital(bool enb);
 
     //pga gain control
-    void set_tx_pga_gain(float);
-    float get_tx_pga_gain(void);
-    void set_rx_pga_gain(float, char);
-    float get_rx_pga_gain(char);
+    void set_tx_pga_gain(double);
+    double get_tx_pga_gain(void);
+    void set_rx_pga_gain(double, char);
+    double get_rx_pga_gain(char);
     
     //rx adc buffer control
     void bypass_adc_buffers(bool bypass);
@@ -159,19 +160,19 @@ usrp1_codec_ctrl_impl::~usrp1_codec_ctrl_impl(void)
  **********************************************************************/
 static const int mtpgw = 255; //maximum tx pga gain word
 
-void usrp1_codec_ctrl_impl::set_tx_pga_gain(float gain){
+void usrp1_codec_ctrl_impl::set_tx_pga_gain(double gain){
     int gain_word = int(mtpgw*(gain - tx_pga_gain_range.start())/(tx_pga_gain_range.stop() - tx_pga_gain_range.start()));
     _ad9862_regs.tx_pga_gain = std::clip(gain_word, 0, mtpgw);
     this->send_reg(16);
 }
 
-float usrp1_codec_ctrl_impl::get_tx_pga_gain(void){
+double usrp1_codec_ctrl_impl::get_tx_pga_gain(void){
     return (_ad9862_regs.tx_pga_gain*(tx_pga_gain_range.stop() - tx_pga_gain_range.start())/mtpgw) + tx_pga_gain_range.start();
 }
 
 static const int mrpgw = 0x14; //maximum rx pga gain word
 
-void usrp1_codec_ctrl_impl::set_rx_pga_gain(float gain, char which){
+void usrp1_codec_ctrl_impl::set_rx_pga_gain(double gain, char which){
     int gain_word = int(mrpgw*(gain - rx_pga_gain_range.start())/(rx_pga_gain_range.stop() - rx_pga_gain_range.start()));
     gain_word = std::clip(gain_word, 0, mrpgw);
     switch(which){
@@ -187,7 +188,7 @@ void usrp1_codec_ctrl_impl::set_rx_pga_gain(float gain, char which){
     }
 }
 
-float usrp1_codec_ctrl_impl::get_rx_pga_gain(char which){
+double usrp1_codec_ctrl_impl::get_rx_pga_gain(char which){
     int gain_word;
     switch(which){
     case 'A': gain_word = _ad9862_regs.rx_pga_a; break;
@@ -200,12 +201,12 @@ float usrp1_codec_ctrl_impl::get_rx_pga_gain(char which){
 /***********************************************************************
  * Codec Control AUX ADC Methods
  **********************************************************************/
-static float aux_adc_to_volts(boost::uint8_t high, boost::uint8_t low)
+static double aux_adc_to_volts(boost::uint8_t high, boost::uint8_t low)
 {
-    return float(((boost::uint16_t(high) << 2) | low)*3.3)/0x3ff;
+    return double(((boost::uint16_t(high) << 2) | low)*3.3)/0x3ff;
 }
 
-float usrp1_codec_ctrl_impl::read_aux_adc(aux_adc_t which)
+double usrp1_codec_ctrl_impl::read_aux_adc(aux_adc_t which)
 {
     //check to see if the switch needs to be set
     bool write_switch = false;
@@ -259,7 +260,7 @@ float usrp1_codec_ctrl_impl::read_aux_adc(aux_adc_t which)
 /***********************************************************************
  * Codec Control AUX DAC Methods
  **********************************************************************/
-void usrp1_codec_ctrl_impl::write_aux_dac(aux_dac_t which, float volts)
+void usrp1_codec_ctrl_impl::write_aux_dac(aux_dac_t which, double volts)
 {
     //special case for aux dac d (aka sigma delta word)
     if (which == AUX_DAC_D) {
@@ -421,6 +422,11 @@ void usrp1_codec_ctrl_impl::set_duc_freq(double freq)
     this->send_reg(23);
 }
 
+void usrp1_codec_ctrl_impl::enable_tx_digital(bool enb){
+    _ad9862_regs.tx_digital_pd = (enb)? 0 : 1;
+    this->send_reg(8);
+}
+
 /***********************************************************************
  * Codec Control ADC buffer bypass
  * Disable this for AC-coupled daughterboards (TVRX)
diff --git a/host/lib/usrp/usrp1/codec_ctrl.hpp b/host/lib/usrp/usrp1/codec_ctrl.hpp
index e2e8a010d..20e4015c5 100644
--- a/host/lib/usrp/usrp1/codec_ctrl.hpp
+++ b/host/lib/usrp/usrp1/codec_ctrl.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -61,7 +61,7 @@ public:
      * \param which which of the 4 adcs
      * \return a value in volts
      */
-    virtual float read_aux_adc(aux_adc_t which) = 0;
+    virtual double read_aux_adc(aux_adc_t which) = 0;
 
     //! aux dac identifier constants
     enum aux_dac_t{
@@ -76,23 +76,26 @@ public:
      * \param which which of the 4 dacs
      * \param volts the level in in volts
      */
-    virtual void write_aux_dac(aux_dac_t which, float volts) = 0;
+    virtual void write_aux_dac(aux_dac_t which, double volts) = 0;
 
     //! Set the TX PGA gain
-    virtual void set_tx_pga_gain(float gain) = 0;
+    virtual void set_tx_pga_gain(double gain) = 0;
 
     //! Get the TX PGA gain
-    virtual float get_tx_pga_gain(void) = 0;
+    virtual double get_tx_pga_gain(void) = 0;
 
     //! Set the RX PGA gain ('A' or 'B')
-    virtual void set_rx_pga_gain(float gain, char which) = 0;
+    virtual void set_rx_pga_gain(double gain, char which) = 0;
 
     //! Get the RX PGA gain ('A' or 'B')
-    virtual float get_rx_pga_gain(char which) = 0;
+    virtual double get_rx_pga_gain(char which) = 0;
 
     //! Set the TX modulator frequency
     virtual void set_duc_freq(double freq) = 0;
-    
+
+    //! Enable or disable the digital part of the DAC
+    virtual void enable_tx_digital(bool enb) = 0;
+
     //! Enable or disable ADC buffer bypass
     virtual void bypass_adc_buffers(bool bypass) = 0;
 };
diff --git a/host/lib/usrp/usrp1/codec_impl.cpp b/host/lib/usrp/usrp1/codec_impl.cpp
index db53be53e..14ecd2d2e 100644
--- a/host/lib/usrp/usrp1/codec_impl.cpp
+++ b/host/lib/usrp/usrp1/codec_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -92,12 +92,12 @@ void usrp1_impl::rx_codec_set(const wax::obj &key_, const wax::obj &val, dboard_
     switch(key.as<codec_prop_t>()) {
     case CODEC_PROP_GAIN_I:
         UHD_ASSERT_THROW(key.name == adc_pga_gain_name);
-        _codec_ctrls[dboard_slot]->set_rx_pga_gain(val.as<float>(), 'A');
+        _codec_ctrls[dboard_slot]->set_rx_pga_gain(val.as<double>(), 'A');
         return;
 
     case CODEC_PROP_GAIN_Q:
         UHD_ASSERT_THROW(key.name == adc_pga_gain_name);
-        _codec_ctrls[dboard_slot]->set_rx_pga_gain(val.as<float>(), 'B');
+        _codec_ctrls[dboard_slot]->set_rx_pga_gain(val.as<double>(), 'B');
         return;
 
     default: UHD_THROW_PROP_SET_ERROR();
@@ -151,7 +151,7 @@ void usrp1_impl::tx_codec_set(const wax::obj &key_, const wax::obj &val, dboard_
     case CODEC_PROP_GAIN_I: //only one gain for I and Q
     case CODEC_PROP_GAIN_Q:
         UHD_ASSERT_THROW(key.name == dac_pga_gain_name);
-        _codec_ctrls[dboard_slot]->set_tx_pga_gain(val.as<float>());
+        _codec_ctrls[dboard_slot]->set_tx_pga_gain(val.as<double>());
         return;
 
     default: UHD_THROW_PROP_SET_ERROR();
diff --git a/host/lib/usrp/usrp1/dboard_iface.cpp b/host/lib/usrp/usrp1/dboard_iface.cpp
index 4e47d6bf6..eec4a52db 100644
--- a/host/lib/usrp/usrp1/dboard_iface.cpp
+++ b/host/lib/usrp/usrp1/dboard_iface.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -72,8 +72,8 @@ public:
         return props;
     }
 
-    void write_aux_dac(unit_t, aux_dac_t, float);
-    float read_aux_adc(unit_t, aux_adc_t);
+    void write_aux_dac(unit_t, aux_dac_t, double);
+    double read_aux_adc(unit_t, aux_adc_t);
 
     void _set_pin_ctrl(unit_t, boost::uint16_t);
     void _set_atr_reg(unit_t, atr_reg_t, boost::uint16_t);
@@ -369,7 +369,7 @@ byte_vector_t usrp1_dboard_iface::read_i2c(boost::uint8_t addr,
  * Aux DAX/ADC
  **********************************************************************/
 void usrp1_dboard_iface::write_aux_dac(dboard_iface::unit_t,
-                                       aux_dac_t which, float value)
+                                       aux_dac_t which, double value)
 {
     //same aux dacs for each unit
     static const uhd::dict<aux_dac_t, usrp1_codec_ctrl::aux_dac_t>
@@ -382,7 +382,7 @@ void usrp1_dboard_iface::write_aux_dac(dboard_iface::unit_t,
     _codec->write_aux_dac(which_to_aux_dac[which], value);
 }
 
-float usrp1_dboard_iface::read_aux_adc(dboard_iface::unit_t unit,
+double usrp1_dboard_iface::read_aux_adc(dboard_iface::unit_t unit,
                                        aux_adc_t which)
 {
     static const
diff --git a/host/lib/usrp/usrp1/io_impl.cpp b/host/lib/usrp/usrp1/io_impl.cpp
index 6728d9b15..9fa1b4f72 100644
--- a/host/lib/usrp/usrp1/io_impl.cpp
+++ b/host/lib/usrp/usrp1/io_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -19,7 +19,6 @@
 #include "usrp_commands.h"
 #include "usrp1_impl.hpp"
 #include <uhd/utils/thread_priority.hpp>
-#include <uhd/transport/convert_types.hpp>
 #include <uhd/transport/bounded_buffer.hpp>
 #include <boost/bind.hpp>
 #include <boost/format.hpp>
@@ -92,6 +91,7 @@ struct usrp1_impl::io_impl{
     void commit_send_buff(offset_send_buffer::sptr, offset_send_buffer::sptr, size_t);
     void flush_send_buff(void);
     bool get_send_buffs(vrt_packet_handler::managed_send_buffs_t &, double);
+    bool transmitting_enb;
 };
 
 /*!
@@ -184,6 +184,28 @@ void usrp1_impl::io_init(void){
     _tx_otw_type.byteorder = otw_type_t::BO_LITTLE_ENDIAN;
 
     _io_impl = UHD_PIMPL_MAKE(io_impl, (_data_transport));
+
+    _soft_time_ctrl = soft_time_ctrl::make(
+        boost::bind(&usrp1_impl::rx_stream_on_off, this, _1)
+    );
+
+    rx_stream_on_off(false);
+    tx_stream_on_off(false);
+}
+
+void usrp1_impl::rx_stream_on_off(bool enb){
+    return _iface->write_firmware_cmd(VRQ_FPGA_SET_RX_ENABLE, enb, 0, 0, 0);
+    //drain any junk in the receive transport after stop streaming command
+    while(not enb and _data_transport->get_recv_buff().get() != NULL){
+        /* NOP */
+    }
+}
+
+void usrp1_impl::tx_stream_on_off(bool enb){
+    if (not enb) _io_impl->flush_send_buff();
+    _codec_ctrls[DBOARD_SLOT_A]->enable_tx_digital(enb);
+    _codec_ctrls[DBOARD_SLOT_B]->enable_tx_digital(enb);
+    _io_impl->transmitting_enb = enb;
 }
 
 /***********************************************************************
@@ -209,6 +231,9 @@ size_t usrp1_impl::send(
     const tx_metadata_t &metadata, const io_type_t &io_type,
     send_mode_t send_mode, double timeout
 ){
+    if (_soft_time_ctrl->send_pre(metadata, timeout)) return num_samps;
+    if (not _io_impl->transmitting_enb) tx_stream_on_off(true);
+
     size_t num_samps_sent = vrt_packet_handler::send(
         _io_impl->packet_handler_send_state,       //last state of the send handler
         buffs, num_samps,                          //buffer to fill
@@ -222,9 +247,11 @@ size_t usrp1_impl::send(
         _tx_subdev_spec.size()                     //num channels
     );
 
-    //Don't honor sob because it is normal to be always bursting...
-    //handle eob flag (commit the buffer)
-    if (metadata.end_of_burst) _io_impl->flush_send_buff();
+    //handle eob flag (commit the buffer, disable the DACs)
+    //check num samps sent to avoid flush on incomplete/timeout
+    if (metadata.end_of_burst and num_samps_sent == num_samps){
+        this->tx_stream_on_off(false);
+    }
 
     //handle the polling for underflow conditions
     _io_impl->underflow_poll_samp_count += num_samps_sent;
@@ -296,6 +323,8 @@ size_t usrp1_impl::recv(
         _rx_subdev_spec.size()                     //num channels
     );
 
+    _soft_time_ctrl->recv_post(metadata, num_samps_recvd);
+
     //handle the polling for overflow conditions
     _io_impl->overflow_poll_samp_count += num_samps_recvd;
     if (_io_impl->overflow_poll_samp_count >= _rx_samps_per_poll_interval){
diff --git a/host/lib/usrp/usrp1/mboard_impl.cpp b/host/lib/usrp/usrp1/mboard_impl.cpp
index 4df5ada0a..23c8f03c4 100644
--- a/host/lib/usrp/usrp1/mboard_impl.cpp
+++ b/host/lib/usrp/usrp1/mboard_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -240,19 +240,6 @@ void usrp1_impl::mboard_init(void)
     }
 }
 
-void usrp1_impl::issue_stream_cmd(const stream_cmd_t &stream_cmd)
-{
-    switch(stream_cmd.stream_mode){
-    case stream_cmd_t::STREAM_MODE_START_CONTINUOUS:
-        return _iface->write_firmware_cmd(VRQ_FPGA_SET_RX_ENABLE, true, 0, 0, 0);
-
-    case stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS:
-        return _iface->write_firmware_cmd(VRQ_FPGA_SET_RX_ENABLE, false, 0, 0, 0);
-
-    default: throw std::runtime_error("unsupported stream command type for USRP1");
-    }
-}
-
 /***********************************************************************
  * Mboard Get
  **********************************************************************/
@@ -326,6 +313,10 @@ void usrp1_impl::mboard_get(const wax::obj &key_, wax::obj &val)
         val = _iface->mb_eeprom;
         return;
 
+    case MBOARD_PROP_TIME_NOW:
+        val = _soft_time_ctrl->get_time();
+        return;
+
     default: UHD_THROW_PROP_GET_ERROR();
     }
 }
@@ -348,7 +339,7 @@ void usrp1_impl::mboard_set(const wax::obj &key, const wax::obj &val)
     switch(key.as<mboard_prop_t>()){
 
     case MBOARD_PROP_STREAM_CMD:
-        issue_stream_cmd(val.as<stream_cmd_t>());
+        _soft_time_ctrl->issue_stream_cmd(val.as<stream_cmd_t>());
         return;
 
     case MBOARD_PROP_RX_SUBDEV_SPEC:
@@ -384,6 +375,10 @@ void usrp1_impl::mboard_set(const wax::obj &key, const wax::obj &val)
         _iface->mb_eeprom = mboard_eeprom_t(*_iface, mboard_eeprom_t::MAP_B000);
         return;
 
+    case MBOARD_PROP_TIME_NOW:
+        _soft_time_ctrl->set_time(val.as<time_spec_t>());
+        return;
+
     default: UHD_THROW_PROP_SET_ERROR();
     }
 }
diff --git a/host/lib/usrp/usrp1/soft_time_ctrl.cpp b/host/lib/usrp/usrp1/soft_time_ctrl.cpp
new file mode 100644
index 000000000..4d6abe218
--- /dev/null
+++ b/host/lib/usrp/usrp1/soft_time_ctrl.cpp
@@ -0,0 +1,224 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include "soft_time_ctrl.hpp"
+#include <uhd/transport/bounded_buffer.hpp>
+#include <boost/any.hpp>
+#include <boost/thread.hpp>
+#include <boost/date_time/posix_time/posix_time.hpp>
+#include <boost/date_time/local_time/local_time.hpp>
+#include <iostream>
+
+using namespace uhd;
+using namespace uhd::usrp;
+using namespace uhd::transport;
+namespace pt = boost::posix_time;
+namespace lt = boost::local_time;
+
+static const time_spec_t TWIDDLE(0.0015);
+
+/***********************************************************************
+ * Utility helper functions
+ **********************************************************************/
+
+//TODO put these in time_spec_t (maybe useful)
+
+static const double time_dur_tps = double(pt::time_duration::ticks_per_second());
+
+time_spec_t time_dur_to_time_spec(const pt::time_duration &time_dur){
+    return time_spec_t(
+        time_dur.total_seconds(),
+        long(time_dur.fractional_seconds()),
+        time_dur_tps
+    );
+}
+
+pt::time_duration time_spec_to_time_dur(const time_spec_t &time_spec){
+    return pt::time_duration(
+        0, 0, long(time_spec.get_full_secs()),
+        time_spec.get_tick_count(time_dur_tps)
+    );
+}
+
+/***********************************************************************
+ * Soft time control implementation
+ **********************************************************************/
+class soft_time_ctrl_impl : public soft_time_ctrl{
+public:
+
+    soft_time_ctrl_impl(const cb_fcn_type &stream_on_off):
+        _nsamps_remaining(0),
+        _stream_mode(stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS),
+        _cmd_queue(bounded_buffer<boost::any>::make(2)),
+        _stream_on_off(stream_on_off)
+    {
+        //synchronously spawn a new thread
+        _update_mutex.lock(); //lock mutex before spawned
+        _thread_group.create_thread(boost::bind(&soft_time_ctrl_impl::recv_cmd_dispatcher, this));
+        _update_mutex.lock(); //lock blocks until spawned
+        _update_mutex.unlock(); //unlock mutex before done
+    }
+
+    ~soft_time_ctrl_impl(void){
+        _thread_group.interrupt_all();
+        _thread_group.join_all();
+    }
+
+    /*******************************************************************
+     * Time control
+     ******************************************************************/
+    void set_time(const time_spec_t &time){
+        boost::mutex::scoped_lock lock(_update_mutex);
+        _time_offset = boost::get_system_time() - time_spec_to_time_dur(time);
+    }
+
+    time_spec_t get_time(void){
+        boost::mutex::scoped_lock lock(_update_mutex);
+        return time_now();
+    }
+
+    UHD_INLINE time_spec_t time_now(void){
+        //internal get time without scoped lock
+        return time_dur_to_time_spec(boost::get_system_time() - _time_offset);
+    }
+
+    UHD_INLINE void sleep_until_time(
+        boost::mutex::scoped_lock &lock, const time_spec_t &time
+    ){
+        boost::condition_variable cond;
+        //use a condition variable to unlock, sleep, lock
+        cond.timed_wait(lock, _time_offset + time_spec_to_time_dur(time));
+    }
+
+    /*******************************************************************
+     * Receive control
+     ******************************************************************/
+    void recv_post(rx_metadata_t &md, size_t &nsamps){
+        boost::mutex::scoped_lock lock(_update_mutex);
+
+        //load the metadata with the expected time
+        md.has_time_spec = true;
+        md.time_spec = time_now();
+
+        //none of the stuff below matters in continuous streaming mode
+        if (_stream_mode == stream_cmd_t::STREAM_MODE_START_CONTINUOUS) return;
+
+        //When to stop streaming:
+        //The samples have been received and the stream mode is non-continuous.
+        //Rewrite the sample count to clip to the requested number of samples.
+        if (_nsamps_remaining <= nsamps){
+            nsamps = _nsamps_remaining; //set nsamps, then stop
+            md.end_of_burst = true;
+            stream_on_off(false);
+            return;
+        }
+
+        //update the consumed samples
+        _nsamps_remaining -= nsamps;
+    }
+
+    void issue_stream_cmd(const stream_cmd_t &cmd){
+        _cmd_queue->push_with_wait(cmd);
+    }
+
+    void stream_on_off(bool enb){
+        _stream_on_off(enb);
+        _nsamps_remaining = 0;
+    }
+
+    /*******************************************************************
+     * Transmit control
+     ******************************************************************/
+    bool send_pre(const tx_metadata_t &md, double &timeout){
+        if (not md.has_time_spec) return false;
+
+        boost::mutex::scoped_lock lock(_update_mutex);
+
+        time_spec_t time_at(md.time_spec - TWIDDLE);
+
+        //handle late packets
+        if (time_at < time_now()){
+            //TODO post async message
+            return true;
+        }
+
+        timeout -= (time_at - time_now()).get_real_secs();
+        sleep_until_time(lock, time_at);
+        return false;
+    }
+
+    /*******************************************************************
+     * Thread control
+     ******************************************************************/
+    void recv_cmd_handle_cmd(const stream_cmd_t &cmd){
+        boost::mutex::scoped_lock lock(_update_mutex);
+
+        //handle the stream at time by sleeping
+        if (not cmd.stream_now){
+            time_spec_t time_at(cmd.time_spec - TWIDDLE);
+            if (time_at < time_now()){
+                //TODO inject late cmd inline error
+            }
+            else{
+                sleep_until_time(lock, time_at);
+            }
+        }
+
+        //When to stop streaming:
+        //Stop streaming when the command is a stop and streaming.
+        if (cmd.stream_mode == stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS
+           and _stream_mode != stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS
+        ) stream_on_off(false);
+
+        //When to start streaming:
+        //Start streaming when the command is not a stop and not streaming.
+        if (cmd.stream_mode != stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS
+           and _stream_mode == stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS
+        ) stream_on_off(true);
+
+        //update the state
+        _nsamps_remaining += cmd.num_samps;
+        _stream_mode = cmd.stream_mode;
+    }
+
+    void recv_cmd_dispatcher(void){
+        _update_mutex.unlock();
+        try{
+            boost::any cmd;
+            while (true){
+                _cmd_queue->pop_with_wait(cmd);
+                recv_cmd_handle_cmd(boost::any_cast<stream_cmd_t>(cmd));
+            }
+        } catch(const boost::thread_interrupted &){}
+    }
+
+private:
+    boost::mutex _update_mutex;
+    size_t _nsamps_remaining;
+    stream_cmd_t::stream_mode_t _stream_mode;
+    pt::ptime _time_offset;
+    bounded_buffer<boost::any>::sptr _cmd_queue;
+    const cb_fcn_type _stream_on_off;
+    boost::thread_group _thread_group;
+};
+
+/***********************************************************************
+ * Soft time control factor
+ **********************************************************************/
+soft_time_ctrl::sptr soft_time_ctrl::make(const cb_fcn_type &stream_on_off){
+    return sptr(new soft_time_ctrl_impl(stream_on_off));
+}
diff --git a/host/lib/usrp/usrp1/soft_time_ctrl.hpp b/host/lib/usrp/usrp1/soft_time_ctrl.hpp
new file mode 100644
index 000000000..7fdac7fc8
--- /dev/null
+++ b/host/lib/usrp/usrp1/soft_time_ctrl.hpp
@@ -0,0 +1,69 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#ifndef INCLUDED_LIBUHD_USRP_USRP1_SOFT_TIME_CTRL_HPP
+#define INCLUDED_LIBUHD_USRP_USRP1_SOFT_TIME_CTRL_HPP
+
+#include <uhd/types/stream_cmd.hpp>
+#include <uhd/types/time_spec.hpp>
+#include <uhd/types/metadata.hpp>
+#include <boost/utility.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/function.hpp>
+
+namespace uhd{ namespace usrp{
+
+/*!
+ * The soft time control emulates some of the
+ * advanced streaming capabilities of the later USRP models.
+ * Soft time control uses the system time to emulate
+ * timed transmits, timed receive commands, device time,
+ * and inline and async error messages.
+ */
+class soft_time_ctrl : boost::noncopyable{
+public:
+    typedef boost::shared_ptr<soft_time_ctrl> sptr;
+    typedef boost::function<void(bool)> cb_fcn_type;
+
+    /*!
+     * Make a new soft time control.
+     * \param stream_on_off a function to enable/disable rx
+     * \return a new soft time control object
+     */
+    static sptr make(const cb_fcn_type &stream_on_off);
+        //TODO pass in the error queue for async msgs
+        //TODO pass in the queue for inline msgs
+
+    //! Set the current time
+    virtual void set_time(const time_spec_t &time) = 0;
+
+    //! Get the current time
+    virtual time_spec_t get_time(void) = 0;
+
+    //! Call after the internal recv function
+    virtual void recv_post(rx_metadata_t &md, size_t &nsamps) = 0;
+
+    //! Call before the internal send function
+    virtual bool send_pre(const tx_metadata_t &md, double &timeout) = 0;
+
+    //! Issue a stream command to receive
+    virtual void issue_stream_cmd(const stream_cmd_t &cmd) = 0;
+};
+
+}} //namespace
+
+#endif /* INCLUDED_LIBUHD_USRP_USRP1_SOFT_TIME_CTRL_HPP */
diff --git a/host/lib/usrp/usrp1/usrp1_ctrl.cpp b/host/lib/usrp/usrp1/usrp1_ctrl.cpp
index 5043aed7d..09f854813 100644
--- a/host/lib/usrp/usrp1/usrp1_ctrl.cpp
+++ b/host/lib/usrp/usrp1/usrp1_ctrl.cpp
@@ -139,13 +139,6 @@ public:
         _ctrl_transport = ctrl_transport;
     }
 
-
-    ~usrp_ctrl_impl(void)
-    {
-        /* NOP */
-    }
-
-
     int usrp_load_firmware(std::string filestring, bool force)
     {
         const char *filename = filestring.c_str();
@@ -233,6 +226,20 @@ public:
         return -1;
     }
 
+    void usrp_init(void){
+        /* not calling because this causes junk to come at init
+         * and it does not seem to be necessary to call anyway
+        usrp_rx_enable(false);
+        usrp_rx_reset(true);
+        usrp_rx_reset(false);
+        usrp_rx_enable(true);
+        */
+
+        usrp_tx_enable(false);
+        usrp_tx_reset(true);
+        usrp_tx_reset(false);
+        usrp_tx_enable(true);
+    }
 
     int usrp_load_fpga(std::string filestring)
     {
@@ -288,7 +295,7 @@ public:
         usrp_set_fpga_hash(hash);
         file.close();
         if (load_img_msg) std::cout << " done" << std::endl;
-        return 0; 
+        return 0;
     }
 
     int usrp_load_eeprom(std::string filestring)
@@ -393,6 +400,12 @@ public:
     }
 
 
+    int usrp_rx_reset(bool on)
+    {
+        return usrp_control_write_cmd(VRQ_FPGA_SET_RX_RESET, on, 0); 
+    }
+
+
     int usrp_control_write(boost::uint8_t request,
                            boost::uint16_t value,
                            boost::uint16_t index,
diff --git a/host/lib/usrp/usrp1/usrp1_ctrl.hpp b/host/lib/usrp/usrp1/usrp1_ctrl.hpp
index a02d9f96c..8ccfacab7 100644
--- a/host/lib/usrp/usrp1/usrp1_ctrl.hpp
+++ b/host/lib/usrp/usrp1/usrp1_ctrl.hpp
@@ -33,6 +33,9 @@ public:
      */
     static sptr make(uhd::transport::usb_control::sptr ctrl_transport);
 
+    //! Call init after the fpga is loaded
+    virtual void usrp_init(void) = 0;
+
     /*!
      * Load firmware in Intel HEX Format onto device 
      * \param filename name of firmware file
@@ -93,20 +96,6 @@ public:
     virtual int usrp_set_fpga_hash(size_t hash) = 0;
 
     /*!
-     * Set rx enable or disable 
-     * \param on enable or disable value
-     * \return 0 on success, error code otherwise
-     */
-    virtual int usrp_rx_enable(bool on) = 0;
-
-    /*!
-     * Set rx enable or disable 
-     * \param on enable or disable value
-     * \return 0 on success, error code otherwise
-     */
-    virtual int usrp_tx_enable(bool on) = 0;
-
-    /*!
      * Submit an IN transfer 
      * \param request device specific request 
      * \param value device specific field
diff --git a/host/lib/usrp/usrp1/usrp1_impl.cpp b/host/lib/usrp/usrp1/usrp1_impl.cpp
index 6016b0979..c395db0b9 100644
--- a/host/lib/usrp/usrp1/usrp1_impl.cpp
+++ b/host/lib/usrp/usrp1/usrp1_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -139,6 +139,7 @@ static device::sptr usrp1_make(const device_addr_t &device_addr){
     usb_control::sptr ctrl_transport = usb_control::make(handle);
     usrp_ctrl::sptr usrp_ctrl = usrp_ctrl::make(ctrl_transport);
     usrp_ctrl->usrp_load_fpga(usrp1_fpga_image);
+    usrp_ctrl->usrp_init();
     usb_zero_copy::sptr data_transport = usb_zero_copy::make(
         handle,        // identifier
         6,             // IN endpoint
@@ -192,9 +193,6 @@ usrp1_impl::usrp1_impl(uhd::transport::usb_zero_copy::sptr data_transport,
     //initialize the send/recv
     io_init();
 
-    //turn on the transmitter
-    _ctrl_transport->usrp_tx_enable(true);
-
     //init the subdev specs
     this->mboard_set(MBOARD_PROP_RX_SUBDEV_SPEC, subdev_spec_t());
     this->mboard_set(MBOARD_PROP_TX_SUBDEV_SPEC, subdev_spec_t());
diff --git a/host/lib/usrp/usrp1/usrp1_impl.hpp b/host/lib/usrp/usrp1/usrp1_impl.hpp
index ff4d40762..057725394 100644
--- a/host/lib/usrp/usrp1/usrp1_impl.hpp
+++ b/host/lib/usrp/usrp1/usrp1_impl.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@
 #include "usrp1_ctrl.hpp"
 #include "clock_ctrl.hpp"
 #include "codec_ctrl.hpp"
+#include "soft_time_ctrl.hpp"
 #include <uhd/device.hpp>
 #include <uhd/utils/pimpl.hpp>
 #include <uhd/types/dict.hpp>
@@ -114,13 +115,17 @@ private:
         const uhd::usrp::dboard_id_t &rx_dboard_id
     );
 
+    //soft time control emulation
+    uhd::usrp::soft_time_ctrl::sptr _soft_time_ctrl;
+
     //interface to ioctls and file descriptor
     usrp1_iface::sptr _iface;
 
     //handle io stuff
     UHD_PIMPL_DECL(io_impl) _io_impl;
     void io_init(void);
-    void issue_stream_cmd(const uhd::stream_cmd_t &stream_cmd);
+    void rx_stream_on_off(bool);
+    void tx_stream_on_off(bool);
     void handle_overrun(size_t);
 
     //underrun and overrun poll intervals
diff --git a/host/lib/usrp/usrp2/CMakeLists.txt b/host/lib/usrp/usrp2/CMakeLists.txt
index 527669852..e8811a8fb 100644
--- a/host/lib/usrp/usrp2/CMakeLists.txt
+++ b/host/lib/usrp/usrp2/CMakeLists.txt
@@ -34,12 +34,8 @@ IF(ENABLE_USRP2)
         ${CMAKE_CURRENT_SOURCE_DIR}/dboard_impl.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/dboard_iface.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/dsp_impl.cpp
-        ${CMAKE_CURRENT_SOURCE_DIR}/gps_ctrl.hpp
-        ${CMAKE_CURRENT_SOURCE_DIR}/gps_ctrl.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/io_impl.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/mboard_impl.cpp
-        ${CMAKE_CURRENT_SOURCE_DIR}/serdes_ctrl.cpp
-        ${CMAKE_CURRENT_SOURCE_DIR}/serdes_ctrl.hpp
         ${CMAKE_CURRENT_SOURCE_DIR}/usrp2_iface.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/usrp2_iface.hpp
         ${CMAKE_CURRENT_SOURCE_DIR}/usrp2_impl.cpp
diff --git a/host/lib/usrp/usrp2/clock_ctrl.cpp b/host/lib/usrp/usrp2/clock_ctrl.cpp
index 428d5539b..27ccefb2b 100644
--- a/host/lib/usrp/usrp2/clock_ctrl.cpp
+++ b/host/lib/usrp/usrp2/clock_ctrl.cpp
@@ -22,10 +22,13 @@
 #include <uhd/utils/assert.hpp>
 #include <boost/cstdint.hpp>
 #include <boost/lexical_cast.hpp>
+#include <boost/math/special_functions/round.hpp>
 #include <iostream>
 
 using namespace uhd;
 
+static const bool enb_test_clk = false;
+
 /*!
  * A usrp2 clock control specific to the ad9510 ic.
  */
@@ -66,13 +69,12 @@ public:
         this->enable_external_ref(false);
         this->enable_rx_dboard_clock(false);
         this->enable_tx_dboard_clock(false);
+        this->enable_mimo_clock_out(false);
 
         /* private clock enables, must be set here */
         this->enable_dac_clock(true);
         this->enable_adc_clock(true);
-
-        /* always driving the mimo reference */
-        this->enable_mimo_clock_out(true);
+        this->enable_test_clock(enb_test_clk);
     }
 
     ~usrp2_clock_ctrl_impl(void){
@@ -83,6 +85,7 @@ public:
         this->enable_dac_clock(false);
         this->enable_adc_clock(false);
         this->enable_mimo_clock_out(false);
+        this->enable_test_clock(false);
     }
 
     void enable_mimo_clock_out(bool enb){
@@ -246,6 +249,54 @@ public:
     double get_master_clock_rate(void){
         return 100e6;
     }
+    
+    void set_mimo_clock_delay(double delay) {
+        //delay_val is a 5-bit value (0-31) for fine control
+        //the equations below determine delay for a given ramp current, # of caps and fine delay register
+        //delay range:
+        //range_ns = 200*((caps+3)/i_ramp_ua)*1.3286
+        //offset (zero delay):
+        //offset_ns = 0.34 + (1600 - i_ramp_ua)*1e-4 + ((caps-1)/ramp)*6
+        //delay_ns = offset_ns + range_ns * delay / 31
+
+        int delay_val = boost::math::iround(delay/9.744e-9*31);
+
+        if(delay_val == 0) {
+            switch(clk_regs.exp) {
+            case 5:
+                _ad9510_regs.delay_control_out5 = 1;
+                break;
+            case 6:
+                _ad9510_regs.delay_control_out6 = 1;
+                break;
+            default:
+                break; //delay not supported on U2 rev 3
+            }
+        } else {
+            switch(clk_regs.exp) {
+            case 5:
+                _ad9510_regs.delay_control_out5 = 0;
+                _ad9510_regs.ramp_current_out5 = ad9510_regs_t::RAMP_CURRENT_OUT5_200UA;
+                _ad9510_regs.ramp_capacitor_out5 = ad9510_regs_t::RAMP_CAPACITOR_OUT5_4CAPS;
+                _ad9510_regs.delay_fine_adjust_out5 = delay_val;
+                this->write_reg(0x34);
+                this->write_reg(0x35);
+                this->write_reg(0x36);
+                break;
+            case 6:
+                _ad9510_regs.delay_control_out6 = 0;
+                _ad9510_regs.ramp_current_out6 = ad9510_regs_t::RAMP_CURRENT_OUT6_200UA;
+                _ad9510_regs.ramp_capacitor_out6 = ad9510_regs_t::RAMP_CAPACITOR_OUT6_4CAPS;
+                _ad9510_regs.delay_fine_adjust_out6 = delay_val;
+                this->write_reg(0x38);
+                this->write_reg(0x39);
+                this->write_reg(0x3A);
+                break;
+            default:
+                break;
+            }
+        }
+    }
 
 private:
     /*!
diff --git a/host/lib/usrp/usrp2/clock_ctrl.hpp b/host/lib/usrp/usrp2/clock_ctrl.hpp
index db6c52c83..9ccbc959e 100644
--- a/host/lib/usrp/usrp2/clock_ctrl.hpp
+++ b/host/lib/usrp/usrp2/clock_ctrl.hpp
@@ -91,8 +91,18 @@ public:
     virtual void enable_test_clock(bool enb) = 0;
 
     /*!
-     * TODO other clock control api here....
+     * Enable/disable the ref clock output over the serdes cable.
+     * \param enb true to enable
+     */
+    virtual void enable_mimo_clock_out(bool enb) = 0;
+    
+    /*!
+     * Set the output delay of the mimo clock
+     * Used to synchronise daisy-chained USRPs over the MIMO cable
+     * Can also be used to adjust delay for uneven reference cable lengths
+     * \param delay the clock delay in seconds
      */
+    virtual void set_mimo_clock_delay(double delay) = 0;
 
 };
 
diff --git a/host/lib/usrp/usrp2/codec_ctrl.cpp b/host/lib/usrp/usrp2/codec_ctrl.cpp
index 3a34afe11..890969b5a 100644
--- a/host/lib/usrp/usrp2/codec_ctrl.cpp
+++ b/host/lib/usrp/usrp2/codec_ctrl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -124,7 +124,7 @@ public:
         this->send_ad9777_reg(0x01); //set the register
     }
 
-    void set_rx_digital_gain(float gain) {  //fine digital gain
+    void set_rx_digital_gain(double gain) {  //fine digital gain
         switch(_iface->get_rev()){
         case usrp2_iface::USRP_N200:
         case usrp2_iface::USRP_N210:
@@ -136,7 +136,7 @@ public:
         }
     }
 
-    void set_rx_digital_fine_gain(float gain) { //gain correction      
+    void set_rx_digital_fine_gain(double gain) { //gain correction      
         switch(_iface->get_rev()){
         case usrp2_iface::USRP_N200:
         case usrp2_iface::USRP_N210:
@@ -148,7 +148,7 @@ public:
         }
     }
 
-    void set_rx_analog_gain(bool gain) { //turns on/off analog 3.5dB preamp
+    void set_rx_analog_gain(bool /*gain*/) { //turns on/off analog 3.5dB preamp
         switch(_iface->get_rev()){
         case usrp2_iface::USRP_N200:
         case usrp2_iface::USRP_N210:
diff --git a/host/lib/usrp/usrp2/codec_ctrl.hpp b/host/lib/usrp/usrp2/codec_ctrl.hpp
index c8d977a1f..ca300e2b1 100644
--- a/host/lib/usrp/usrp2/codec_ctrl.hpp
+++ b/host/lib/usrp/usrp2/codec_ctrl.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -54,14 +54,14 @@ public:
      * \param gain from 0-6dB
      */
 
-    virtual void set_rx_digital_gain(float gain) = 0;
+    virtual void set_rx_digital_gain(double gain) = 0;
 
     /*!
      * Set the digital gain correction on the USRP2+ ADC (ADS62P44).
      * \param gain from 0-0.5dB
      */
 
-    virtual void set_rx_digital_fine_gain(float gain) = 0;
+    virtual void set_rx_digital_fine_gain(double gain) = 0;
 
 };
 
diff --git a/host/lib/usrp/usrp2/codec_impl.cpp b/host/lib/usrp/usrp2/codec_impl.cpp
index 8299ce0a6..d7078d985 100644
--- a/host/lib/usrp/usrp2/codec_impl.cpp
+++ b/host/lib/usrp/usrp2/codec_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -28,10 +28,10 @@ using namespace uhd;
 using namespace uhd::usrp;
 using namespace boost::assign;
 
-//this only applies to USRP2P
+//this only applies to N2XX
 static const uhd::dict<std::string, gain_range_t> codec_rx_gain_ranges = map_list_of
-                                  ("digital", gain_range_t(0, float(6.0), float(0.5)))
-                                  ("digital-fine", gain_range_t(0, float(0.5), float(0.05)));
+                                  ("digital", gain_range_t(0, 6.0, 0.5))
+                                  ("digital-fine", gain_range_t(0, 0.5, 0.05));
 
 
 /***********************************************************************
@@ -111,7 +111,7 @@ void usrp2_mboard_impl::rx_codec_set(const wax::obj &key_, const wax::obj &val){
     switch(key.as<codec_prop_t>()) {
     case CODEC_PROP_GAIN_I:
     case CODEC_PROP_GAIN_Q:
-        this->rx_codec_set_gain(val.as<float>(), key.name);
+        this->rx_codec_set_gain(val.as<double>(), key.name);
         return;
 
     default: UHD_THROW_PROP_SET_ERROR();
@@ -122,7 +122,7 @@ void usrp2_mboard_impl::rx_codec_set(const wax::obj &key_, const wax::obj &val){
  * Helper function to set RX codec gain
  ***********************************************************************/
 
-void usrp2_mboard_impl::rx_codec_set_gain(float gain, const std::string &name){
+void usrp2_mboard_impl::rx_codec_set_gain(double gain, const std::string &name){
   assert_has(codec_rx_gain_ranges.keys(), name, "codec rx gain name");
 
   _codec_rx_gains[name] = gain;
diff --git a/host/lib/usrp/usrp2/dboard_iface.cpp b/host/lib/usrp/usrp2/dboard_iface.cpp
index 54c1c735c..c539b0058 100644
--- a/host/lib/usrp/usrp2/dboard_iface.cpp
+++ b/host/lib/usrp/usrp2/dboard_iface.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -44,8 +44,8 @@ public:
         return props;
     }
 
-    void write_aux_dac(unit_t, aux_dac_t, float);
-    float read_aux_adc(unit_t, aux_adc_t);
+    void write_aux_dac(unit_t, aux_dac_t, double);
+    double read_aux_adc(unit_t, aux_adc_t);
 
     void _set_pin_ctrl(unit_t, boost::uint16_t);
     void _set_atr_reg(unit_t, atr_reg_t, boost::uint16_t);
@@ -294,7 +294,7 @@ void usrp2_dboard_iface::_write_aux_dac(unit_t unit){
     );
 }
 
-void usrp2_dboard_iface::write_aux_dac(unit_t unit, aux_dac_t which, float value){
+void usrp2_dboard_iface::write_aux_dac(unit_t unit, aux_dac_t which, double value){
     _dac_regs[unit].data = boost::math::iround(4095*value/3.3);
     _dac_regs[unit].cmd = ad5623_regs_t::CMD_WR_UP_DAC_CHAN_N;
 
@@ -317,7 +317,7 @@ void usrp2_dboard_iface::write_aux_dac(unit_t unit, aux_dac_t which, float value
     this->_write_aux_dac(unit);
 }
 
-float usrp2_dboard_iface::read_aux_adc(unit_t unit, aux_adc_t which){
+double usrp2_dboard_iface::read_aux_adc(unit_t unit, aux_adc_t which){
     static const uhd::dict<unit_t, int> unit_to_spi_adc = map_list_of
         (UNIT_RX, SPI_SS_RX_ADC)
         (UNIT_TX, SPI_SS_TX_ADC)
@@ -346,5 +346,5 @@ float usrp2_dboard_iface::read_aux_adc(unit_t unit, aux_adc_t which){
     )));
 
     //convert to voltage and return
-    return float(3.3*ad7922_regs.result/4095);
+    return 3.3*ad7922_regs.result/4095;
 }
diff --git a/host/lib/usrp/usrp2/fw_common.h b/host/lib/usrp/usrp2/fw_common.h
index a9c39e650..a22f805e1 100644
--- a/host/lib/usrp/usrp2/fw_common.h
+++ b/host/lib/usrp/usrp2/fw_common.h
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -18,23 +18,20 @@
 #ifndef INCLUDED_USRP2_FW_COMMON_H
 #define INCLUDED_USRP2_FW_COMMON_H
 
+#include <stdint.h>
+
 /*!
  * Structs and constants for usrp2 communication.
  * This header is shared by the firmware and host code.
  * Therefore, this header may only contain valid C code.
  */
 #ifdef __cplusplus
-    #include <boost/cstdint.hpp>
-    #define __stdint(type) boost::type
 extern "C" {
-#else
-    #include <stdint.h>
-    #define __stdint(type) type
 #endif
 
 //fpga and firmware compatibility numbers
-#define USRP2_FPGA_COMPAT_NUM 3
-#define USRP2_FW_COMPAT_NUM 7
+#define USRP2_FPGA_COMPAT_NUM 4
+#define USRP2_FW_COMPAT_NUM 8
 
 //used to differentiate control packets over data port
 #define USRP2_INVALID_VRT_HEADER 0
@@ -42,7 +39,9 @@ extern "C" {
 // udp ports for the usrp2 communication
 // Dynamic and/or private ports: 49152-65535
 #define USRP2_UDP_CTRL_PORT 49152
-#define USRP2_UDP_DATA_PORT 49153
+//#define USRP2_UDP_UPDATE_PORT 49154
+#define USRP2_UDP_DATA_PORT 49156
+#define USRP2_UDP_ERR0_PORT 49157
 
 ////////////////////////////////////////////////////////////////////////
 // I2C addresses
@@ -104,40 +103,38 @@ typedef enum{
 } usrp2_clk_edge_t;
 
 typedef struct{
-    __stdint(uint32_t) proto_ver;
-    __stdint(uint32_t) id;
-    __stdint(uint32_t) seq;
+    uint32_t proto_ver;
+    uint32_t id;
+    uint32_t seq;
     union{
-        __stdint(uint32_t) ip_addr;
+        uint32_t ip_addr;
         struct {
-            __stdint(uint32_t) dev;
-            __stdint(uint32_t) data;
-            __stdint(uint8_t) miso_edge;
-            __stdint(uint8_t) mosi_edge;
-            __stdint(uint8_t) num_bits;
-            __stdint(uint8_t) readback;
+            uint32_t dev;
+            uint32_t data;
+            uint8_t miso_edge;
+            uint8_t mosi_edge;
+            uint8_t num_bits;
+            uint8_t readback;
         } spi_args;
         struct {
-            __stdint(uint8_t) addr;
-            __stdint(uint8_t) bytes;
-            __stdint(uint8_t) data[20];
+            uint8_t addr;
+            uint8_t bytes;
+            uint8_t data[20];
         } i2c_args;
         struct {
-            __stdint(uint32_t) addr;
-            __stdint(uint32_t) data;
-            __stdint(uint32_t) addrhi;
-            __stdint(uint32_t) datahi;
-            __stdint(uint8_t) num_bytes; //1, 2, 4, 8
+            uint32_t addr;
+            uint32_t data;
+            uint32_t _pad[2];
+            uint8_t num_bytes; //1, 2, 4
         } poke_args;
         struct {
-            __stdint(uint8_t) dev;
-            __stdint(uint8_t) bytes;
-            __stdint(uint8_t) data[20];
+            uint8_t dev;
+            uint8_t bytes;
+            uint8_t data[20];
         } uart_args;
     } data;
 } usrp2_ctrl_data_t;
 
-#undef __stdint
 #ifdef __cplusplus
 }
 #endif
diff --git a/host/lib/usrp/usrp2/io_impl.cpp b/host/lib/usrp/usrp2/io_impl.cpp
index cbc0a0817..30eaecae2 100644
--- a/host/lib/usrp/usrp2/io_impl.cpp
+++ b/host/lib/usrp/usrp2/io_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -20,12 +20,13 @@
 #include "usrp2_regs.hpp"
 #include <uhd/utils/byteswap.hpp>
 #include <uhd/utils/thread_priority.hpp>
-#include <uhd/transport/convert_types.hpp>
-#include <uhd/transport/alignment_buffer.hpp>
+#include <uhd/transport/bounded_buffer.hpp>
 #include <boost/format.hpp>
 #include <boost/bind.hpp>
 #include <boost/thread.hpp>
+#include <boost/date_time/posix_time/posix_time_types.hpp>
 #include <iostream>
+#include <list>
 
 using namespace uhd;
 using namespace uhd::usrp;
@@ -108,16 +109,24 @@ private:
  * - vrt packet handler states
  **********************************************************************/
 struct usrp2_impl::io_impl{
-    typedef alignment_buffer<managed_recv_buffer::sptr, time_spec_t> alignment_buffer_type;
 
-    io_impl(size_t num_recv_frames, size_t send_frame_size, size_t width):
+    io_impl(size_t send_frame_size, size_t width):
         packet_handler_recv_state(width),
-        recv_pirate_booty(alignment_buffer_type::make(num_recv_frames-3, width)),
         async_msg_fifo(bounded_buffer<async_metadata_t>::make(100/*messages deep*/))
     {
-        for (size_t i = 0; i < width; i++) fc_mons.push_back(
-            flow_control_monitor::sptr(new flow_control_monitor(usrp2_impl::sram_bytes/send_frame_size))
-        );
+        for (size_t i = 0; i < width; i++){
+            fc_mons.push_back(flow_control_monitor::sptr(
+                new flow_control_monitor(usrp2_impl::sram_bytes/send_frame_size)
+            ));
+            //init empty packet infos
+            vrt::if_packet_info_t packet_info;
+            packet_info.packet_count = 0xf;
+            packet_info.has_tsi = true;
+            packet_info.tsi = 0;
+            packet_info.has_tsf = true;
+            packet_info.tsf = 0;
+            prev_infos.push_back(packet_info);
+        }
     }
 
     ~io_impl(void){
@@ -126,11 +135,6 @@ struct usrp2_impl::io_impl{
         recv_pirate_crew.join_all();
     }
 
-    bool get_recv_buffs(vrt_packet_handler::managed_recv_buffs_t &buffs, double timeout){
-        boost::this_thread::disable_interruption di; //disable because the wait can throw
-        return recv_pirate_booty->pop_elems_with_timed_wait(buffs, timeout);
-    }
-
     bool get_send_buffs(
         const std::vector<zero_copy_if::sptr> &trans,
         vrt_packet_handler::managed_send_buffs_t &buffs,
@@ -151,6 +155,15 @@ struct usrp2_impl::io_impl{
         return true;
     }
 
+    bool get_recv_buffs(
+        const std::vector<zero_copy_if::sptr> &xports,
+        vrt_packet_handler::managed_recv_buffs_t &buffs,
+        double timeout
+    );
+
+    //previous state for each buffer
+    std::vector<vrt::if_packet_info_t> prev_infos;
+
     //flow control monitors
     std::vector<flow_control_monitor::sptr> fc_mons;
 
@@ -162,29 +175,28 @@ struct usrp2_impl::io_impl{
     void recv_pirate_loop(zero_copy_if::sptr, usrp2_mboard_impl::sptr, size_t);
     boost::thread_group recv_pirate_crew;
     bool recv_pirate_crew_raiding;
-    alignment_buffer_type::sptr recv_pirate_booty;
     bounded_buffer<async_metadata_t>::sptr async_msg_fifo;
     boost::mutex spawn_mutex;
 };
 
 /***********************************************************************
  * Receive Pirate Loop
- * - while raiding, loot for recv buffers
- * - put booty into the alignment buffer
+ * - while raiding, loot for message packet
+ * - update flow control condition count
+ * - put async message packets into queue
  **********************************************************************/
 void usrp2_impl::io_impl::recv_pirate_loop(
-    zero_copy_if::sptr zc_if,
+    zero_copy_if::sptr zc_if_err0,
     usrp2_mboard_impl::sptr mboard,
     size_t index
 ){
     set_thread_priority_safe();
     recv_pirate_crew_raiding = true;
-    size_t next_packet_seq = 0;
 
     spawn_mutex.unlock();
 
     while(recv_pirate_crew_raiding){
-        managed_recv_buffer::sptr buff = zc_if->get_recv_buff();
+        managed_recv_buffer::sptr buff = zc_if_err0->get_recv_buff();
         if (not buff.get()) continue; //ignore timeout/error buffers
 
         try{
@@ -194,26 +206,6 @@ void usrp2_impl::io_impl::recv_pirate_loop(
             const boost::uint32_t *vrt_hdr = buff->cast<const boost::uint32_t *>();
             vrt::if_hdr_unpack_be(vrt_hdr, if_packet_info);
 
-            //handle the rx data stream
-            if (if_packet_info.sid == usrp2_impl::RECV_SID){
-                //handle the packet count / sequence number
-                if (if_packet_info.packet_count != next_packet_seq){
-                    //std::cerr << "S" << (if_packet_info.packet_count - next_packet_seq)%16;
-                    std::cerr << "O" << std::flush; //report overflow (drops in the kernel)
-                }
-                next_packet_seq = (if_packet_info.packet_count+1)%16;
-
-                //extract the timespec and round to the nearest packet
-                UHD_ASSERT_THROW(if_packet_info.has_tsi and if_packet_info.has_tsf);
-                time_spec_t time(
-                    time_t(if_packet_info.tsi), size_t(if_packet_info.tsf), mboard->get_master_clock_freq()
-                );
-
-                //push the packet into the buffer with the new time
-                recv_pirate_booty->push_with_pop_on_full(buff, time, index);
-                continue;
-            }
-
             //handle a tx async report message
             if (if_packet_info.sid == usrp2_impl::ASYNC_SID and if_packet_info.packet_type != vrt::if_packet_info_t::PACKET_TYPE_DATA){
 
@@ -253,21 +245,10 @@ void usrp2_impl::io_impl::recv_pirate_loop(
 void usrp2_impl::io_init(void){
 
     //the assumption is that all data transports should be identical
-    const size_t num_recv_frames = _data_transports.front()->get_num_recv_frames();
     const size_t send_frame_size = _data_transports.front()->get_send_frame_size();
 
     //create new io impl
-    _io_impl = UHD_PIMPL_MAKE(io_impl, (num_recv_frames, send_frame_size, _data_transports.size()));
-
-    //TODO temporary fix for weird power up state, remove when FPGA fixed
-    {
-        //send an initial packet to all transports
-        tx_metadata_t md; md.end_of_burst = true;
-        this->send(
-            std::vector<const void *>(_data_transports.size(), NULL), 0, md,
-            io_type_t::COMPLEX_FLOAT32, device::SEND_MODE_ONE_PACKET, 0
-        );
-    }
+    _io_impl = UHD_PIMPL_MAKE(io_impl, (send_frame_size, _data_transports.size()));
 
     //create a new pirate thread for each zc if (yarr!!)
     for (size_t i = 0; i < _data_transports.size(); i++){
@@ -276,7 +257,7 @@ void usrp2_impl::io_init(void){
         //spawn a new pirate to plunder the recv booty
         _io_impl->recv_pirate_crew.create_thread(boost::bind(
             &usrp2_impl::io_impl::recv_pirate_loop,
-            _io_impl.get(), _data_transports.at(i),
+            _io_impl.get(), _err0_transports.at(i),
             _mboards.at(i), i
         ));
         //block here until the spawned thread unlocks
@@ -328,6 +309,133 @@ size_t usrp2_impl::send(
 }
 
 /***********************************************************************
+ * Alignment logic on receive
+ **********************************************************************/
+static UHD_INLINE boost::posix_time::time_duration to_time_dur(double timeout){
+    return boost::posix_time::microseconds(long(timeout*1e6));
+}
+
+static UHD_INLINE double from_time_dur(const boost::posix_time::time_duration &time_dur){
+    return 1e-6*time_dur.total_microseconds();
+}
+
+static UHD_INLINE time_spec_t extract_time_spec(
+    const vrt::if_packet_info_t &packet_info
+){
+    return time_spec_t( //assumes has_tsi and has_tsf are true
+        time_t(packet_info.tsi), size_t(packet_info.tsf),
+        100e6 //tick rate does not have to be correct for comparison purposes
+    );
+}
+
+static UHD_INLINE void extract_packet_info(
+    managed_recv_buffer::sptr &buff,
+    vrt::if_packet_info_t &prev_info,
+    time_spec_t &time, bool &clear, bool &msg
+){
+    //extract packet info
+    vrt::if_packet_info_t next_info;
+    next_info.num_packet_words32 = buff->size()/sizeof(boost::uint32_t);
+    vrt::if_hdr_unpack_be(buff->cast<const boost::uint32_t *>(), next_info);
+
+    //handle the packet count / sequence number
+    if ((prev_info.packet_count+1)%16 != next_info.packet_count){
+        std::cerr << "O" << std::flush; //report overflow (drops in the kernel)
+    }
+
+    time = extract_time_spec(next_info);
+    clear = extract_time_spec(prev_info) > time;
+    msg = next_info.packet_type != vrt::if_packet_info_t::PACKET_TYPE_DATA;
+    prev_info = next_info;
+}
+
+static UHD_INLINE bool handle_msg_packet(
+    vrt_packet_handler::managed_recv_buffs_t &buffs, size_t index
+){
+    for (size_t i = 0; i < buffs.size(); i++){
+        if (i == index) continue;
+        buffs[i].reset(); //set NULL
+    }
+    return true;
+}
+
+UHD_INLINE bool usrp2_impl::io_impl::get_recv_buffs(
+    const std::vector<zero_copy_if::sptr> &xports,
+    vrt_packet_handler::managed_recv_buffs_t &buffs,
+    double timeout
+){
+    if (buffs.size() == 1){
+        buffs[0] = xports[0]->get_recv_buff(timeout);
+        if (buffs[0].get() == NULL) return false;
+        bool clear, msg; time_spec_t time; //unused variables
+        //call extract_packet_info to handle printing the overflows
+        extract_packet_info(buffs[0], this->prev_infos[0], time, clear, msg);
+        return true;
+    }
+    //-------------------- begin alignment logic ---------------------//
+    boost::system_time exit_time = boost::get_system_time() + to_time_dur(timeout);
+    managed_recv_buffer::sptr buff_tmp;
+    std::list<size_t> _all_indexes, indexes_to_do;
+    for (size_t i = 0; i < buffs.size(); i++) _all_indexes.push_back(i);
+    bool clear, msg;
+    time_spec_t expected_time;
+
+    //respond to a clear by starting from scratch
+    got_clear:
+    indexes_to_do = _all_indexes;
+    clear = false;
+
+    //do an initial pop to load an initial sequence id
+    size_t index = indexes_to_do.front();
+    buff_tmp = xports[index]->get_recv_buff(from_time_dur(exit_time - boost::get_system_time()));
+    if (buff_tmp.get() == NULL) return false;
+    extract_packet_info(buff_tmp, this->prev_infos[index], expected_time, clear, msg);
+    if (clear) goto got_clear;
+    buffs[index] = buff_tmp;
+    if (msg) return handle_msg_packet(buffs, index);
+    indexes_to_do.pop_front();
+
+    //get an aligned set of elements from the buffers:
+    while(indexes_to_do.size() != 0){
+
+        //pop an element off for this index
+        index = indexes_to_do.front();
+        buff_tmp = xports[index]->get_recv_buff(from_time_dur(exit_time - boost::get_system_time()));
+        if (buff_tmp.get() == NULL) return false;
+        time_spec_t this_time;
+        extract_packet_info(buff_tmp, this->prev_infos[index], this_time, clear, msg);
+        if (clear) goto got_clear;
+        buffs[index] = buff_tmp;
+        if (msg) return handle_msg_packet(buffs, index);
+
+        //if the sequence id matches:
+        //  remove this index from the list and continue
+        if (this_time == expected_time){
+            indexes_to_do.pop_front();
+            continue;
+        }
+
+        //if the sequence id is older:
+        //  continue with the same index to try again
+        else if (this_time < expected_time){
+            continue;
+        }
+
+        //if the sequence id is newer:
+        //  use the new expected time for comparison
+        //  add all other indexes back into the list
+        else{
+            expected_time = this_time;
+            indexes_to_do = _all_indexes;
+            indexes_to_do.remove(index);
+            continue;
+        }
+    }
+    return true;
+    //-------------------- end alignment logic -----------------------//
+}
+
+/***********************************************************************
  * Receive Data
  **********************************************************************/
 size_t usrp2_impl::get_max_recv_samps_per_packet(void) const{
@@ -357,7 +465,7 @@ size_t usrp2_impl::recv(
         io_type, _rx_otw_type,                     //input and output types to convert
         _mboards.front()->get_master_clock_freq(), //master clock tick rate
         uhd::transport::vrt::if_hdr_unpack_be,
-        boost::bind(&usrp2_impl::io_impl::get_recv_buffs, _io_impl.get(), _1, timeout),
+        boost::bind(&usrp2_impl::io_impl::get_recv_buffs, _io_impl.get(), _data_transports, _1, timeout),
         boost::bind(&handle_overflow, _mboards, _1)
     );
 }
diff --git a/host/lib/usrp/usrp2/mboard_impl.cpp b/host/lib/usrp/usrp2/mboard_impl.cpp
index 766ea993c..95f7013e7 100644
--- a/host/lib/usrp/usrp2/mboard_impl.cpp
+++ b/host/lib/usrp/usrp2/mboard_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -17,6 +17,7 @@
 
 #include "usrp2_impl.hpp"
 #include "usrp2_regs.hpp"
+#include <uhd/usrp/gps_ctrl.hpp>
 #include <uhd/usrp/misc_utils.hpp>
 #include <uhd/usrp/dsp_utils.hpp>
 #include <uhd/usrp/mboard_props.hpp>
@@ -25,11 +26,13 @@
 #include <uhd/utils/algorithm.hpp>
 #include <boost/bind.hpp>
 #include <iostream>
-#include <boost/date_time/posix_time/posix_time.hpp>
+
+static const double mimo_clock_delay_usrp2_rev4 = 4.18e-9;
+static const double mimo_clock_delay_usrp_n2xx = 3.55e-9;
+static const size_t mimo_clock_sync_delay_cycles = 137;
 
 using namespace uhd;
 using namespace uhd::usrp;
-using namespace boost::posix_time;
 
 /***********************************************************************
  * Structors
@@ -38,8 +41,9 @@ usrp2_mboard_impl::usrp2_mboard_impl(
     size_t index,
     transport::udp_simple::sptr ctrl_transport,
     transport::zero_copy_if::sptr data_transport,
-    size_t recv_samps_per_packet,
-    const device_addr_t &flow_control_hints
+    transport::zero_copy_if::sptr err0_transport,
+    const device_addr_t &device_args,
+    size_t recv_samps_per_packet
 ):
     _index(index),
     _iface(usrp2_iface::make(ctrl_transport))
@@ -47,19 +51,24 @@ usrp2_mboard_impl::usrp2_mboard_impl(
     //Send a small data packet so the usrp2 knows the udp source port.
     //This setup must happen before further initialization occurs
     //or the async update packets will cause ICMP destination unreachable.
-    transport::managed_send_buffer::sptr send_buff = data_transport->get_send_buff();
+    transport::managed_send_buffer::sptr send_buff;
     static const boost::uint32_t data[2] = {
         uhd::htonx(boost::uint32_t(0 /* don't care seq num */)),
         uhd::htonx(boost::uint32_t(USRP2_INVALID_VRT_HEADER))
     };
+    send_buff = data_transport->get_send_buff();
+    std::memcpy(send_buff->cast<void*>(), &data, sizeof(data));
+    send_buff->commit(sizeof(data));
+    send_buff = err0_transport->get_send_buff();
     std::memcpy(send_buff->cast<void*>(), &data, sizeof(data));
     send_buff->commit(sizeof(data));
 
     //contruct the interfaces to mboard perifs
     _clock_ctrl = usrp2_clock_ctrl::make(_iface);
     _codec_ctrl = usrp2_codec_ctrl::make(_iface);
-    _serdes_ctrl = usrp2_serdes_ctrl::make(_iface);
-    //_gps_ctrl = usrp2_gps_ctrl::make(_iface);
+    //_gps_ctrl = gps_ctrl::make(
+    //    _iface->get_gps_write_fn(),
+    //    _iface->get_gps_read_fn());
 
     //if(_gps_ctrl->gps_detected()) std::cout << "GPS time: " << _gps_ctrl->get_time() << std::endl;
 
@@ -98,14 +107,14 @@ usrp2_mboard_impl::usrp2_mboard_impl(
     _iface->poke32(_iface->regs.tx_ctrl_policy, U2_FLAG_TX_CTRL_POLICY_NEXT_PACKET);
 
     //setting the cycles per update (disabled by default)
-    const double ups_per_sec = flow_control_hints.cast<double>("ups_per_sec", 0.0);
+    const double ups_per_sec = device_args.cast<double>("ups_per_sec", 0.0);
     if (ups_per_sec > 0.0){
         const size_t cycles_per_up = size_t(_clock_ctrl->get_master_clock_rate()/ups_per_sec);
         _iface->poke32(_iface->regs.tx_ctrl_cycles_per_up, U2_FLAG_TX_CTRL_UP_ENB | cycles_per_up);
     }
 
     //setting the packets per update (enabled by default)
-    const double ups_per_fifo = flow_control_hints.cast<double>("ups_per_fifo", 8.0);
+    const double ups_per_fifo = device_args.cast<double>("ups_per_fifo", 8.0);
     if (ups_per_fifo > 0.0){
         const size_t packets_per_up = size_t(usrp2_impl::sram_bytes/ups_per_fifo/data_transport->get_send_frame_size());
         _iface->poke32(_iface->regs.tx_ctrl_packets_per_up, U2_FLAG_TX_CTRL_UP_ENB | packets_per_up);
@@ -118,7 +127,26 @@ usrp2_mboard_impl::usrp2_mboard_impl(
     init_duc_config();
 
     //initialize the clock configuration
-    init_clock_config();
+    if (device_args.has_key("mimo_mode")){
+        if (device_args["mimo_mode"] == "master"){
+            _mimo_clocking_mode_is_master = true;
+        }
+        else if (device_args["mimo_mode"] == "slave"){
+            _mimo_clocking_mode_is_master = false;
+        }
+        else throw std::runtime_error(
+            "mimo_mode must be set to master or slave"
+        );
+    }
+    else {
+        _mimo_clocking_mode_is_master = (_iface->peek32(_iface->regs.status) & (1 << 8)) != 0;
+    }
+    std::cout << boost::format("mboard%d MIMO %s") % _index %
+        (_mimo_clocking_mode_is_master?"master":"slave") << std::endl;
+
+    //init the clock config
+    _clock_config = clock_config_t::internal();
+    update_clock_config();
 
     //init the codec before the dboard
     codec_init();
@@ -139,23 +167,12 @@ usrp2_mboard_impl::~usrp2_mboard_impl(void){
 /***********************************************************************
  * Helper Methods
  **********************************************************************/
-void usrp2_mboard_impl::init_clock_config(void){
-    //setup the clock configuration settings
-    _clock_config.ref_source = clock_config_t::REF_INT;
-    _clock_config.pps_source = clock_config_t::PPS_SMA;
-    _clock_config.pps_polarity = clock_config_t::PPS_NEG;
-
-    //update the clock config (sends a control packet)
-    update_clock_config();
-}
-
 void usrp2_mboard_impl::update_clock_config(void){
     boost::uint32_t pps_flags = 0;
 
     //translate pps source enums
     switch(_clock_config.pps_source){
     case clock_config_t::PPS_SMA:  pps_flags |= U2_FLAG_TIME64_PPS_SMA;  break;
-    case clock_config_t::PPS_MIMO: pps_flags |= U2_FLAG_TIME64_PPS_MIMO; break;
     default: throw std::runtime_error("unhandled clock configuration pps source");
     }
 
@@ -176,7 +193,6 @@ void usrp2_mboard_impl::update_clock_config(void){
         switch(_clock_config.ref_source){
         case clock_config_t::REF_INT : _iface->poke32(_iface->regs.misc_ctrl_clock, 0x12); break;
         case clock_config_t::REF_SMA : _iface->poke32(_iface->regs.misc_ctrl_clock, 0x1C); break;
-        case clock_config_t::REF_MIMO: _iface->poke32(_iface->regs.misc_ctrl_clock, 0x15); break;
         default: throw std::runtime_error("unhandled clock configuration reference source");
         }
         _clock_ctrl->enable_external_ref(true); //USRP2P has an internal 10MHz TCXO
@@ -187,7 +203,6 @@ void usrp2_mboard_impl::update_clock_config(void){
         switch(_clock_config.ref_source){
         case clock_config_t::REF_INT : _iface->poke32(_iface->regs.misc_ctrl_clock, 0x10); break;
         case clock_config_t::REF_SMA : _iface->poke32(_iface->regs.misc_ctrl_clock, 0x1C); break;
-        case clock_config_t::REF_MIMO: _iface->poke32(_iface->regs.misc_ctrl_clock, 0x15); break;
         default: throw std::runtime_error("unhandled clock configuration reference source");
         }
         _clock_ctrl->enable_external_ref(_clock_config.ref_source != clock_config_t::REF_INT);
@@ -195,6 +210,36 @@ void usrp2_mboard_impl::update_clock_config(void){
 
     case usrp2_iface::USRP_NXXX: break;
     }
+
+    //Handle the serdes clocking based on master/slave mode:
+    //   - Masters always drive the clock over serdes.
+    //   - Slaves always lock to this serdes clock.
+    //   - Slaves lock their time over the serdes.
+    if (_mimo_clocking_mode_is_master){
+        _clock_ctrl->enable_mimo_clock_out(true);
+        switch(_iface->get_rev()){
+        case usrp2_iface::USRP_N200:
+        case usrp2_iface::USRP_N210:
+            _clock_ctrl->set_mimo_clock_delay(mimo_clock_delay_usrp_n2xx);
+            break;
+
+        case usrp2_iface::USRP2_REV4:
+            _clock_ctrl->set_mimo_clock_delay(mimo_clock_delay_usrp2_rev4);
+            break;
+
+        default: break; //not handled
+        }
+        _iface->poke32(_iface->regs.time64_mimo_sync, 0);
+    }
+    else{
+        _iface->poke32(_iface->regs.misc_ctrl_clock, 0x15);
+        _clock_ctrl->enable_external_ref(true);
+        _clock_ctrl->enable_mimo_clock_out(false);
+        _iface->poke32(_iface->regs.time64_mimo_sync,
+            (1 << 8) | (mimo_clock_sync_delay_cycles & 0xff)
+        );
+    }
+
 }
 
 void usrp2_mboard_impl::set_time_spec(const time_spec_t &time_spec, bool now){
@@ -279,15 +324,21 @@ void usrp2_mboard_impl::get(const wax::obj &key_, wax::obj &val){
         val = _clock_config;
         return;
 
-    case MBOARD_PROP_TIME_NOW:{
-            usrp2_iface::pair64 time64(
-                _iface->peek64(_iface->regs.time64_secs_rb, _iface->regs.time64_ticks_rb)
-            );
-            val = time_spec_t(
-                time64.first, time64.second, get_master_clock_freq()
-            );
-        }
+    case MBOARD_PROP_TIME_NOW: while(true){
+        uint32_t secs = _iface->peek32(_iface->regs.time64_secs_rb_imm);
+        uint32_t ticks = _iface->peek32(_iface->regs.time64_ticks_rb_imm);
+        if (secs != _iface->peek32(_iface->regs.time64_secs_rb_imm)) continue;
+        val = time_spec_t(secs, ticks, get_master_clock_freq());
         return;
+    }
+
+    case MBOARD_PROP_TIME_PPS: while(true){
+        uint32_t secs = _iface->peek32(_iface->regs.time64_secs_rb_pps);
+        uint32_t ticks = _iface->peek32(_iface->regs.time64_ticks_rb_pps);
+        if (secs != _iface->peek32(_iface->regs.time64_secs_rb_pps)) continue;
+        val = time_spec_t(secs, ticks, get_master_clock_freq());
+        return;
+    }
 
     case MBOARD_PROP_RX_SUBDEV_SPEC:
         val = _rx_subdev_spec;
@@ -321,7 +372,7 @@ void usrp2_mboard_impl::set(const wax::obj &key, const wax::obj &val){
         set_time_spec(val.as<time_spec_t>(), true);
         return;
 
-    case MBOARD_PROP_TIME_NEXT_PPS:
+    case MBOARD_PROP_TIME_PPS:
         set_time_spec(val.as<time_spec_t>(), false);
         return;
 
diff --git a/host/lib/usrp/usrp2/serdes_ctrl.cpp b/host/lib/usrp/usrp2/serdes_ctrl.cpp
deleted file mode 100644
index 1cda22f45..000000000
--- a/host/lib/usrp/usrp2/serdes_ctrl.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright 2010 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-
-#include "serdes_ctrl.hpp"
-#include "usrp2_regs.hpp"
-
-using namespace uhd;
-
-/*!
- * A usrp2 serdes control implementation
- */
-class usrp2_serdes_ctrl_impl : public usrp2_serdes_ctrl{
-public:
-    usrp2_serdes_ctrl_impl(usrp2_iface::sptr iface){
-        _iface = iface;
-        _iface->poke32(_iface->regs.misc_ctrl_serdes, U2_FLAG_MISC_CTRL_SERDES_ENABLE | U2_FLAG_MISC_CTRL_SERDES_RXEN);
-    }
-
-    ~usrp2_serdes_ctrl_impl(void){
-        _iface->poke32(_iface->regs.misc_ctrl_serdes, 0); //power-down
-    }
-
-private:
-    usrp2_iface::sptr _iface;
-};
-
-/***********************************************************************
- * Public make function for the usrp2 serdes control
- **********************************************************************/
-usrp2_serdes_ctrl::sptr usrp2_serdes_ctrl::make(usrp2_iface::sptr iface){
-    return sptr(new usrp2_serdes_ctrl_impl(iface));
-}
diff --git a/host/lib/usrp/usrp2/serdes_ctrl.hpp b/host/lib/usrp/usrp2/serdes_ctrl.hpp
deleted file mode 100644
index 3c909c531..000000000
--- a/host/lib/usrp/usrp2/serdes_ctrl.hpp
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright 2010 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-//
-
-#ifndef INCLUDED_SERDES_CTRL_HPP
-#define INCLUDED_SERDES_CTRL_HPP
-
-#include "usrp2_iface.hpp"
-#include <boost/shared_ptr.hpp>
-#include <boost/utility.hpp>
-
-class usrp2_serdes_ctrl : boost::noncopyable{
-public:
-    typedef boost::shared_ptr<usrp2_serdes_ctrl> sptr;
-
-    /*!
-     * Make a serdes control object for the usrp2 serdes port.
-     * \param _iface a pointer to the usrp2 interface object
-     * \return a new serdes control object
-     */
-    static sptr make(usrp2_iface::sptr iface);
-
-    //TODO fill me in with virtual methods
-
-};
-
-#endif /* INCLUDED_SERDES_CTRL_HPP */
diff --git a/host/lib/usrp/usrp2/usrp2_iface.cpp b/host/lib/usrp/usrp2/usrp2_iface.cpp
index ffbe8eedb..149c5011f 100644
--- a/host/lib/usrp/usrp2/usrp2_iface.cpp
+++ b/host/lib/usrp/usrp2/usrp2_iface.cpp
@@ -93,20 +93,6 @@ public:
         return this->peek<boost::uint16_t>(addr);
     }
 
-    pair64 peek64(boost::uint32_t addrlo, boost::uint32_t addrhi){
-        //setup the out data
-        usrp2_ctrl_data_t out_data;
-        out_data.id = htonl(USRP2_CTRL_ID_PEEK_AT_THIS_REGISTER_FOR_ME_BRO);
-        out_data.data.poke_args.addr = htonl(addrlo);
-        out_data.data.poke_args.addrhi = htonl(addrhi);
-        out_data.data.poke_args.num_bytes = sizeof(boost::uint64_t);
-
-        //send and recv
-        usrp2_ctrl_data_t in_data = this->ctrl_send_and_recv(out_data);
-        UHD_ASSERT_THROW(ntohl(in_data.id) == USRP2_CTRL_ID_WOAH_I_DEFINITELY_PEEKED_IT_DUDE);
-        return pair64(ntohl(in_data.data.poke_args.data), ntohl(in_data.data.poke_args.datahi));
-    }
-
 /***********************************************************************
  * SPI
  **********************************************************************/
@@ -232,6 +218,14 @@ public:
       }
       return result;
     }
+    
+    gps_send_fn_t get_gps_write_fn(void) {
+        return boost::bind(&usrp2_iface_impl::write_uart, this, 2, _1); //2 is the GPS UART port on USRP2
+    }
+    
+    gps_recv_fn_t get_gps_read_fn(void) {
+        return boost::bind(&usrp2_iface_impl::read_uart, this, 2); //2 is the GPS UART port on USRP2
+    }
 
 /***********************************************************************
  * Send/Recv over control
diff --git a/host/lib/usrp/usrp2/usrp2_iface.hpp b/host/lib/usrp/usrp2/usrp2_iface.hpp
index af3ed6c9f..49cb0e6dc 100644
--- a/host/lib/usrp/usrp2/usrp2_iface.hpp
+++ b/host/lib/usrp/usrp2/usrp2_iface.hpp
@@ -24,11 +24,17 @@
 #include <boost/shared_ptr.hpp>
 #include <boost/utility.hpp>
 #include <boost/cstdint.hpp>
+#include <boost/function.hpp>
 #include <utility>
 #include <string>
 #include "fw_common.h"
 #include "usrp2_regs.hpp"
 
+
+//TODO: kill this crap when you have the top level GPS include file
+typedef boost::function<void(std::string)> gps_send_fn_t;
+typedef boost::function<std::string(void)> gps_recv_fn_t;
+
 /*!
  * The usrp2 interface class:
  * Provides a set of functions to implementation layer.
@@ -37,7 +43,6 @@
 class usrp2_iface : public uhd::i2c_iface, boost::noncopyable{
 public:
     typedef boost::shared_ptr<usrp2_iface> sptr;
-    typedef std::pair<boost::uint32_t, boost::uint32_t> pair64;
 
     /*!
      * Make a new usrp2 interface with the control transport.
@@ -54,14 +59,6 @@ public:
     virtual usrp2_ctrl_data_t ctrl_send_and_recv(const usrp2_ctrl_data_t &data) = 0;
 
     /*!
-     * Read a dual register (64 bits)
-     * \param addrlo the address for the low-32 bits
-     * \param addrhi the address for the high-32 bits
-     * \return a pair of 32 bit integers lo, hi
-     */
-    virtual pair64 peek64(boost::uint32_t addrlo, boost::uint32_t addrhi) = 0;
-
-    /*!
      * Write a register (32 bits)
      * \param addr the address
      * \param data the 32bit data
@@ -109,6 +106,9 @@ public:
     virtual void write_uart(boost::uint8_t dev, const std::string &buf) = 0;
 
     virtual std::string read_uart(boost::uint8_t dev) = 0;
+    
+    virtual gps_recv_fn_t get_gps_read_fn(void) = 0;
+    virtual gps_send_fn_t get_gps_write_fn(void) = 0;
 
     //! The list of possible revision types
     enum rev_type {
diff --git a/host/lib/usrp/usrp2/usrp2_impl.cpp b/host/lib/usrp/usrp2/usrp2_impl.cpp
index c3bbe4d65..059ddf65f 100644
--- a/host/lib/usrp/usrp2/usrp2_impl.cpp
+++ b/host/lib/usrp/usrp2/usrp2_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -22,7 +22,7 @@
 #include <uhd/utils/assert.hpp>
 #include <uhd/utils/static.hpp>
 #include <uhd/utils/warning.hpp>
-#include <uhd/utils/algorithm.hpp>
+#include <boost/algorithm/string.hpp> //for split
 #include <boost/assign/list_of.hpp>
 #include <boost/format.hpp>
 #include <boost/foreach.hpp>
@@ -31,6 +31,7 @@
 #include <boost/bind.hpp>
 #include <boost/asio.hpp> //htonl and ntohl
 #include <iostream>
+#include <vector>
 
 using namespace uhd;
 using namespace uhd::usrp;
@@ -47,8 +48,8 @@ template <class T> std::string num2str(T num){
 //! separate indexed device addresses into a vector of device addresses
 device_addrs_t sep_indexed_dev_addrs(const device_addr_t &dev_addr){
     //------------ support old deprecated way and print warning --------
-    if (dev_addr.has_key("addr")){
-        std::vector<std::string> addrs = std::split_string(dev_addr["addr"]);
+    if (dev_addr.has_key("addr") and not dev_addr["addr"].empty()){
+        std::vector<std::string> addrs; boost::split(addrs, dev_addr["addr"], boost::is_any_of(" "));
         if (addrs.size() > 1){
             device_addr_t fixed_dev_addr = dev_addr;
             fixed_dev_addr.pop("addr");
@@ -197,24 +198,36 @@ static device_addrs_t usrp2_find(const device_addr_t &hint_){
  * Make
  **********************************************************************/
 static device::sptr usrp2_make(const device_addr_t &device_addr){
-sep_indexed_dev_addrs(device_addr);
+
+    //setup the dsp transport hints (default to a large recv buff)
+    device_addr_t dsp_xport_hints = device_addr;
+    if (not dsp_xport_hints.has_key("recv_buff_size")){
+        //set to half-a-second of buffering at max rate
+        dsp_xport_hints["recv_buff_size"] = "50e6";
+    }
+
     //create a ctrl and data transport for each address
     std::vector<udp_simple::sptr> ctrl_transports;
     std::vector<zero_copy_if::sptr> data_transports;
+    std::vector<zero_copy_if::sptr> err0_transports;
+    const device_addrs_t device_addrs = sep_indexed_dev_addrs(device_addr);
 
-    BOOST_FOREACH(const device_addr_t &dev_addr_i, sep_indexed_dev_addrs(device_addr)){
+    BOOST_FOREACH(const device_addr_t &dev_addr_i, device_addrs){
         ctrl_transports.push_back(udp_simple::make_connected(
             dev_addr_i["addr"], num2str(USRP2_UDP_CTRL_PORT)
         ));
         data_transports.push_back(udp_zero_copy::make(
-            dev_addr_i["addr"], num2str(USRP2_UDP_DATA_PORT), device_addr
+            dev_addr_i["addr"], num2str(USRP2_UDP_DATA_PORT), dsp_xport_hints
+        ));
+        err0_transports.push_back(udp_zero_copy::make(
+            dev_addr_i["addr"], num2str(USRP2_UDP_ERR0_PORT), device_addr_t()
         ));
     }
 
     //create the usrp2 implementation guts
-    return device::sptr(
-        new usrp2_impl(ctrl_transports, data_transports, device_addr)
-    );
+    return device::sptr(new usrp2_impl(
+        ctrl_transports, data_transports, err0_transports, device_addrs
+    ));
 }
 
 UHD_STATIC_BLOCK(register_usrp2_device){
@@ -227,9 +240,11 @@ UHD_STATIC_BLOCK(register_usrp2_device){
 usrp2_impl::usrp2_impl(
     std::vector<udp_simple::sptr> ctrl_transports,
     std::vector<zero_copy_if::sptr> data_transports,
-    const device_addr_t &flow_control_hints
+    std::vector<zero_copy_if::sptr> err0_transports,
+    const device_addrs_t &device_args
 ):
-    _data_transports(data_transports)
+    _data_transports(data_transports),
+    _err0_transports(err0_transports)
 {
     //setup rx otw type
     _rx_otw_type.width = 16;
@@ -244,11 +259,11 @@ usrp2_impl::usrp2_impl(
     //!!!!! set the otw type here before continuing, its used below
 
     //create a new mboard handler for each control transport
-    for(size_t i = 0; i < ctrl_transports.size(); i++){
+    for(size_t i = 0; i < device_args.size(); i++){
         _mboards.push_back(usrp2_mboard_impl::sptr(new usrp2_mboard_impl(
             i, ctrl_transports[i], data_transports[i],
-            this->get_max_recv_samps_per_packet(),
-            flow_control_hints
+            err0_transports[i], device_args[i],
+            this->get_max_recv_samps_per_packet()
         )));
         //use an empty name when there is only one mboard
         std::string name = (ctrl_transports.size() > 1)? boost::lexical_cast<std::string>(i) : "";
diff --git a/host/lib/usrp/usrp2/usrp2_impl.hpp b/host/lib/usrp/usrp2/usrp2_impl.hpp
index aa8eb0155..ad95b2a4a 100644
--- a/host/lib/usrp/usrp2/usrp2_impl.hpp
+++ b/host/lib/usrp/usrp2/usrp2_impl.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -21,8 +21,7 @@
 #include "usrp2_iface.hpp"
 #include "clock_ctrl.hpp"
 #include "codec_ctrl.hpp"
-#include "gps_ctrl.hpp"
-#include "serdes_ctrl.hpp"
+#include <uhd/usrp/gps_ctrl.hpp>
 #include <uhd/device.hpp>
 #include <uhd/utils/pimpl.hpp>
 #include <uhd/types/dict.hpp>
@@ -86,8 +85,9 @@ public:
         size_t index,
         uhd::transport::udp_simple::sptr,
         uhd::transport::zero_copy_if::sptr,
-        size_t recv_samps_per_packet,
-        const uhd::device_addr_t &flow_control_hints
+        uhd::transport::zero_copy_if::sptr,
+        const uhd::device_addr_t &device_args,
+        size_t recv_samps_per_packet
     );
     ~usrp2_mboard_impl(void);
 
@@ -100,13 +100,13 @@ public:
 private:
     size_t _index;
     bool _continuous_streaming;
+    bool _mimo_clocking_mode_is_master;
 
     //interfaces
     usrp2_iface::sptr _iface;
     usrp2_clock_ctrl::sptr _clock_ctrl;
     usrp2_codec_ctrl::sptr _codec_ctrl;
-    usrp2_serdes_ctrl::sptr _serdes_ctrl;
-    usrp2_gps_ctrl::sptr _gps_ctrl;
+    gps_ctrl::sptr _gps_ctrl;
 
     //properties for this mboard
     void get(const wax::obj &, wax::obj &);
@@ -120,7 +120,6 @@ private:
 
     //methods and shadows for clock configuration
     uhd::clock_config_t _clock_config;
-    void init_clock_config(void);
     void update_clock_config(void);
     void set_time_spec(const uhd::time_spec_t &time_spec, bool now);
 
@@ -133,8 +132,8 @@ private:
     wax_obj_proxy::sptr _rx_codec_proxy;
     wax_obj_proxy::sptr _tx_codec_proxy;
 
-    void rx_codec_set_gain(float, const std::string &);
-    uhd::dict<std::string, float> _codec_rx_gains;
+    void rx_codec_set_gain(double, const std::string &);
+    uhd::dict<std::string, double> _codec_rx_gains;
 
     //properties interface for rx dboard
     void rx_dboard_get(const wax::obj &, wax::obj &);
@@ -187,12 +186,14 @@ public:
      * Create a new usrp2 impl base.
      * \param ctrl_transports the udp transports for control
      * \param data_transports the udp transports for data
-     * \param flow_control_hints optional flow control params
+     * \param err0_transports the udp transports for error
+     * \param device_args optional misc device parameters
      */
     usrp2_impl(
         std::vector<uhd::transport::udp_simple::sptr> ctrl_transports,
         std::vector<uhd::transport::zero_copy_if::sptr> data_transports,
-        const uhd::device_addr_t &flow_control_hints
+        std::vector<uhd::transport::zero_copy_if::sptr> err0_transports,
+        const uhd::device_addrs_t &device_args
     );
 
     ~usrp2_impl(void);
@@ -223,6 +224,7 @@ private:
 
     //io impl methods and members
     std::vector<uhd::transport::zero_copy_if::sptr> _data_transports;
+    std::vector<uhd::transport::zero_copy_if::sptr> _err0_transports;
     uhd::otw_type_t _rx_otw_type, _tx_otw_type;
     UHD_PIMPL_DECL(io_impl) _io_impl;
     void io_init(void);
diff --git a/host/lib/usrp/usrp2/usrp2_regs.cpp b/host/lib/usrp/usrp2/usrp2_regs.cpp
index dd0433816..84907c32e 100644
--- a/host/lib/usrp/usrp2/usrp2_regs.cpp
+++ b/host/lib/usrp/usrp2/usrp2_regs.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -57,9 +57,13 @@ usrp2_regs_t usrp2_get_regs(bool use_n2xx_map) {
   x.time64_flags = sr_addr(misc_output_base, x.sr_time64 + 2);
   x.time64_imm = sr_addr(misc_output_base, x.sr_time64 + 3);
   x.time64_tps = sr_addr(misc_output_base, x.sr_time64 + 4);
-  x.time64_secs_rb = bp_base + 4*10;
-  x.time64_ticks_rb = bp_base + 4*11;
+  x.time64_mimo_sync = sr_addr(misc_output_base, x.sr_time64 + 5);
+  x.status = bp_base + 4*8;
+  x.time64_secs_rb_imm = bp_base + 4*10;
+  x.time64_ticks_rb_imm = bp_base + 4*11;
   x.compat_num_rb = bp_base + 4*12;
+  x.time64_secs_rb_pps = bp_base + 4*14;
+  x.time64_ticks_rb_pps = bp_base + 4*15;
   x.dsp_tx_freq = sr_addr(misc_output_base, x.sr_tx_dsp + 0);
   x.dsp_tx_scale_iq = sr_addr(misc_output_base, x.sr_tx_dsp + 1);
   x.dsp_tx_interp_rate = sr_addr(misc_output_base, x.sr_tx_dsp + 2);
diff --git a/host/lib/usrp/usrp2/usrp2_regs.hpp b/host/lib/usrp/usrp2/usrp2_regs.hpp
index 9936d634a..977b342cb 100644
--- a/host/lib/usrp/usrp2/usrp2_regs.hpp
+++ b/host/lib/usrp/usrp2/usrp2_regs.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -25,10 +25,10 @@
 #define USRP2_ATR_BASE          0xE400
 #define USRP2_BP_STATUS_BASE    0xCC00
 
-#define USRP2P_MISC_OUTPUT_BASE 0x2000
-#define USRP2P_GPIO_BASE        0x3200
-#define USRP2P_ATR_BASE         0x3800
-#define USRP2P_BP_STATUS_BASE   0x3300
+#define USRP2P_MISC_OUTPUT_BASE 0x5000
+#define USRP2P_GPIO_BASE        0x6200
+#define USRP2P_ATR_BASE         0x6800
+#define USRP2P_BP_STATUS_BASE   0x6300
 
 typedef struct {
     int sr_misc;
@@ -57,8 +57,12 @@ typedef struct {
     int time64_flags; // flags -- see chart below
     int time64_imm; // set immediate (0=latch on next pps, 1=latch immediate, default=0)
     int time64_tps; // ticks per second rollover count
-    int time64_secs_rb;
-    int time64_ticks_rb;
+    int time64_mimo_sync;
+    int status;
+    int time64_secs_rb_imm;
+    int time64_ticks_rb_imm;
+    int time64_secs_rb_pps;
+    int time64_ticks_rb_pps;
     int compat_num_rb;
     int dsp_tx_freq;
     int dsp_tx_scale_iq;
diff --git a/host/lib/usrp/usrp_e100/codec_ctrl.cpp b/host/lib/usrp/usrp_e100/codec_ctrl.cpp
index 18d9daca0..b33c8ae65 100644
--- a/host/lib/usrp/usrp_e100/codec_ctrl.cpp
+++ b/host/lib/usrp/usrp_e100/codec_ctrl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -31,7 +31,7 @@ using namespace uhd;
 
 static const bool codec_debug = false;
 
-const gain_range_t usrp_e100_codec_ctrl::tx_pga_gain_range(-20, 0, float(0.1));
+const gain_range_t usrp_e100_codec_ctrl::tx_pga_gain_range(-20, 0, double(0.1));
 const gain_range_t usrp_e100_codec_ctrl::rx_pga_gain_range(0, 20, 1);
 
 /***********************************************************************
@@ -44,14 +44,14 @@ public:
     ~usrp_e100_codec_ctrl_impl(void);
 
     //aux adc and dac control
-    float read_aux_adc(aux_adc_t which);
-    void write_aux_dac(aux_dac_t which, float volts);
+    double read_aux_adc(aux_adc_t which);
+    void write_aux_dac(aux_dac_t which, double volts);
 
     //pga gain control
-    void set_tx_pga_gain(float);
-    float get_tx_pga_gain(void);
-    void set_rx_pga_gain(float, char);
-    float get_rx_pga_gain(char);
+    void set_tx_pga_gain(double);
+    double get_tx_pga_gain(void);
+    void set_rx_pga_gain(double, char);
+    double get_rx_pga_gain(char);
 
 private:
     usrp_e100_iface::sptr _iface;
@@ -135,19 +135,19 @@ usrp_e100_codec_ctrl_impl::~usrp_e100_codec_ctrl_impl(void){
  **********************************************************************/
 static const int mtpgw = 255; //maximum tx pga gain word
 
-void usrp_e100_codec_ctrl_impl::set_tx_pga_gain(float gain){
+void usrp_e100_codec_ctrl_impl::set_tx_pga_gain(double gain){
     int gain_word = int(mtpgw*(gain - tx_pga_gain_range.start())/(tx_pga_gain_range.stop() - tx_pga_gain_range.start()));
     _ad9862_regs.tx_pga_gain = std::clip(gain_word, 0, mtpgw);
     this->send_reg(16);
 }
 
-float usrp_e100_codec_ctrl_impl::get_tx_pga_gain(void){
+double usrp_e100_codec_ctrl_impl::get_tx_pga_gain(void){
     return (_ad9862_regs.tx_pga_gain*(tx_pga_gain_range.stop() - tx_pga_gain_range.start())/mtpgw) + tx_pga_gain_range.start();
 }
 
 static const int mrpgw = 0x14; //maximum rx pga gain word
 
-void usrp_e100_codec_ctrl_impl::set_rx_pga_gain(float gain, char which){
+void usrp_e100_codec_ctrl_impl::set_rx_pga_gain(double gain, char which){
     int gain_word = int(mrpgw*(gain - rx_pga_gain_range.start())/(rx_pga_gain_range.stop() - rx_pga_gain_range.start()));
     gain_word = std::clip(gain_word, 0, mrpgw);
     switch(which){
@@ -163,7 +163,7 @@ void usrp_e100_codec_ctrl_impl::set_rx_pga_gain(float gain, char which){
     }
 }
 
-float usrp_e100_codec_ctrl_impl::get_rx_pga_gain(char which){
+double usrp_e100_codec_ctrl_impl::get_rx_pga_gain(char which){
     int gain_word;
     switch(which){
     case 'A': gain_word = _ad9862_regs.rx_pga_a; break;
@@ -176,11 +176,11 @@ float usrp_e100_codec_ctrl_impl::get_rx_pga_gain(char which){
 /***********************************************************************
  * Codec Control AUX ADC Methods
  **********************************************************************/
-static float aux_adc_to_volts(boost::uint8_t high, boost::uint8_t low){
-    return float((boost::uint16_t(high) << 2) | low)*3.3/0x3ff;
+static double aux_adc_to_volts(boost::uint8_t high, boost::uint8_t low){
+    return double((boost::uint16_t(high) << 2) | low)*3.3/0x3ff;
 }
 
-float usrp_e100_codec_ctrl_impl::read_aux_adc(aux_adc_t which){
+double usrp_e100_codec_ctrl_impl::read_aux_adc(aux_adc_t which){
     //check to see if the switch needs to be set
     bool write_switch = false;
     switch(which){
@@ -233,7 +233,7 @@ float usrp_e100_codec_ctrl_impl::read_aux_adc(aux_adc_t which){
 /***********************************************************************
  * Codec Control AUX DAC Methods
  **********************************************************************/
-void usrp_e100_codec_ctrl_impl::write_aux_dac(aux_dac_t which, float volts){
+void usrp_e100_codec_ctrl_impl::write_aux_dac(aux_dac_t which, double volts){
     //special case for aux dac d (aka sigma delta word)
     if (which == AUX_DAC_D){
         boost::uint16_t dac_word = std::clip(boost::math::iround(volts*0xfff/3.3), 0, 0xfff);
diff --git a/host/lib/usrp/usrp_e100/codec_ctrl.hpp b/host/lib/usrp/usrp_e100/codec_ctrl.hpp
index 74ce9bd9a..05d7aab38 100644
--- a/host/lib/usrp/usrp_e100/codec_ctrl.hpp
+++ b/host/lib/usrp/usrp_e100/codec_ctrl.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -57,7 +57,7 @@ public:
      * \param which which of the 4 adcs
      * \return a value in volts
      */
-    virtual float read_aux_adc(aux_adc_t which) = 0;
+    virtual double read_aux_adc(aux_adc_t which) = 0;
 
     //! aux dac identifier constants
     enum aux_dac_t{
@@ -72,19 +72,19 @@ public:
      * \param which which of the 4 dacs
      * \param volts the level in in volts
      */
-    virtual void write_aux_dac(aux_dac_t which, float volts) = 0;
+    virtual void write_aux_dac(aux_dac_t which, double volts) = 0;
 
     //! Set the TX PGA gain
-    virtual void set_tx_pga_gain(float gain) = 0;
+    virtual void set_tx_pga_gain(double gain) = 0;
 
     //! Get the TX PGA gain
-    virtual float get_tx_pga_gain(void) = 0;
+    virtual double get_tx_pga_gain(void) = 0;
 
     //! Set the RX PGA gain ('A' or 'B')
-    virtual void set_rx_pga_gain(float gain, char which) = 0;
+    virtual void set_rx_pga_gain(double gain, char which) = 0;
 
     //! Get the RX PGA gain ('A' or 'B')
-    virtual float get_rx_pga_gain(char which) = 0;
+    virtual double get_rx_pga_gain(char which) = 0;
 };
 
 #endif /* INCLUDED_USRP_E100_CODEC_CTRL_HPP */
diff --git a/host/lib/usrp/usrp_e100/codec_impl.cpp b/host/lib/usrp/usrp_e100/codec_impl.cpp
index 6fd44bad3..0d91fb42c 100644
--- a/host/lib/usrp/usrp_e100/codec_impl.cpp
+++ b/host/lib/usrp/usrp_e100/codec_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -86,12 +86,12 @@ void usrp_e100_impl::rx_codec_set(const wax::obj &key_, const wax::obj &val){
     switch(key.as<codec_prop_t>()){
     case CODEC_PROP_GAIN_I:
         UHD_ASSERT_THROW(key.name == ad9862_pga_gain_name);
-        _codec_ctrl->set_rx_pga_gain(val.as<float>(), 'A');
+        _codec_ctrl->set_rx_pga_gain(val.as<double>(), 'A');
         return;
 
     case CODEC_PROP_GAIN_Q:
         UHD_ASSERT_THROW(key.name == ad9862_pga_gain_name);
-        _codec_ctrl->set_rx_pga_gain(val.as<float>(), 'B');
+        _codec_ctrl->set_rx_pga_gain(val.as<double>(), 'B');
         return;
 
     default: UHD_THROW_PROP_SET_ERROR();
@@ -141,7 +141,7 @@ void usrp_e100_impl::tx_codec_set(const wax::obj &key_, const wax::obj &val){
     case CODEC_PROP_GAIN_I: //only one gain for I and Q
     case CODEC_PROP_GAIN_Q:
         UHD_ASSERT_THROW(key.name == ad9862_pga_gain_name);
-        _codec_ctrl->set_tx_pga_gain(val.as<float>());
+        _codec_ctrl->set_tx_pga_gain(val.as<double>());
         return;
 
     default: UHD_THROW_PROP_SET_ERROR();
diff --git a/host/lib/usrp/usrp_e100/dboard_iface.cpp b/host/lib/usrp/usrp_e100/dboard_iface.cpp
index a5032f86f..e4c3856c9 100644
--- a/host/lib/usrp/usrp_e100/dboard_iface.cpp
+++ b/host/lib/usrp/usrp_e100/dboard_iface.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -60,8 +60,8 @@ public:
         return props;
     }
 
-    void write_aux_dac(unit_t, aux_dac_t, float);
-    float read_aux_adc(unit_t, aux_adc_t);
+    void write_aux_dac(unit_t, aux_dac_t, double);
+    double read_aux_adc(unit_t, aux_adc_t);
 
     void _set_pin_ctrl(unit_t, boost::uint16_t);
     void _set_atr_reg(unit_t, atr_reg_t, boost::uint16_t);
@@ -270,7 +270,7 @@ byte_vector_t usrp_e100_dboard_iface::read_i2c(boost::uint8_t addr, size_t num_b
 /***********************************************************************
  * Aux DAX/ADC
  **********************************************************************/
-void usrp_e100_dboard_iface::write_aux_dac(dboard_iface::unit_t, aux_dac_t which, float value){
+void usrp_e100_dboard_iface::write_aux_dac(dboard_iface::unit_t, aux_dac_t which, double value){
     //same aux dacs for each unit
     static const uhd::dict<aux_dac_t, usrp_e100_codec_ctrl::aux_dac_t> which_to_aux_dac = map_list_of
         (AUX_DAC_A, usrp_e100_codec_ctrl::AUX_DAC_A)
@@ -281,7 +281,7 @@ void usrp_e100_dboard_iface::write_aux_dac(dboard_iface::unit_t, aux_dac_t which
     _codec->write_aux_dac(which_to_aux_dac[which], value);
 }
 
-float usrp_e100_dboard_iface::read_aux_adc(dboard_iface::unit_t unit, aux_adc_t which){
+double usrp_e100_dboard_iface::read_aux_adc(dboard_iface::unit_t unit, aux_adc_t which){
     static const uhd::dict<
         unit_t, uhd::dict<aux_adc_t, usrp_e100_codec_ctrl::aux_adc_t>
     > unit_to_which_to_aux_adc = map_list_of
diff --git a/host/lib/usrp/usrp_e100/dsp_impl.cpp b/host/lib/usrp/usrp_e100/dsp_impl.cpp
index 43a3bd3be..7d358a607 100644
--- a/host/lib/usrp/usrp_e100/dsp_impl.cpp
+++ b/host/lib/usrp/usrp_e100/dsp_impl.cpp
@@ -38,7 +38,7 @@ void usrp_e100_impl::rx_ddc_init(void){
 
     //initial config and update
     rx_ddc_set(DSP_PROP_FREQ_SHIFT, double(0));
-    rx_ddc_set(DSP_PROP_HOST_RATE, double(64e6/10));
+    rx_ddc_set(DSP_PROP_HOST_RATE, double(16e6));
 }
 
 /***********************************************************************
@@ -121,7 +121,7 @@ void usrp_e100_impl::tx_duc_init(void){
 
     //initial config and update
     tx_duc_set(DSP_PROP_FREQ_SHIFT, double(0));
-    tx_duc_set(DSP_PROP_HOST_RATE, double(64e6/10));
+    tx_duc_set(DSP_PROP_HOST_RATE, double(16e6));
 }
 
 /***********************************************************************
diff --git a/host/lib/usrp/usrp_e100/mboard_impl.cpp b/host/lib/usrp/usrp_e100/mboard_impl.cpp
index fe26cd63d..f52d2e6fb 100644
--- a/host/lib/usrp/usrp_e100/mboard_impl.cpp
+++ b/host/lib/usrp/usrp_e100/mboard_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -36,11 +36,13 @@ void usrp_e100_impl::mboard_init(void){
         boost::bind(&usrp_e100_impl::mboard_set, this, _1, _2)
     );
 
-    //init the clock config
-    _clock_config.ref_source = clock_config_t::REF_AUTO;
-    _clock_config.pps_source = clock_config_t::PPS_SMA;
-    _clock_config.pps_polarity = clock_config_t::PPS_NEG;
+    //set the ticks per seconds into the vita time control
+    _iface->poke32(UE_REG_TIME64_TPS,
+        boost::uint32_t(_clock_ctrl->get_fpga_clock_rate())
+    );
 
+    //init the clock config
+    _clock_config = clock_config_t::internal();
     update_clock_config();
 }
 
@@ -134,6 +136,22 @@ void usrp_e100_impl::mboard_get(const wax::obj &key_, wax::obj &val){
         val = _iface->mb_eeprom;
         return;
 
+    case MBOARD_PROP_TIME_NOW: while(true){
+        uint32_t secs = _iface->peek32(UE_REG_RB_TIME_NOW_SECS);
+        uint32_t ticks = _iface->peek32(UE_REG_RB_TIME_NOW_TICKS);
+        if (secs != _iface->peek32(UE_REG_RB_TIME_NOW_SECS)) continue;
+        val = time_spec_t(secs, ticks, _clock_ctrl->get_fpga_clock_rate());
+        return;
+    }
+
+    case MBOARD_PROP_TIME_PPS: while(true){
+        uint32_t secs = _iface->peek32(UE_REG_RB_TIME_PPS_SECS);
+        uint32_t ticks = _iface->peek32(UE_REG_RB_TIME_PPS_TICKS);
+        if (secs != _iface->peek32(UE_REG_RB_TIME_PPS_SECS)) continue;
+        val = time_spec_t(secs, ticks, _clock_ctrl->get_fpga_clock_rate());
+        return;
+    }
+
     default: UHD_THROW_PROP_GET_ERROR();
     }
 }
@@ -150,7 +168,7 @@ void usrp_e100_impl::mboard_set(const wax::obj &key, const wax::obj &val){
         return;
 
     case MBOARD_PROP_TIME_NOW:
-    case MBOARD_PROP_TIME_NEXT_PPS:{
+    case MBOARD_PROP_TIME_PPS:{
             time_spec_t time_spec = val.as<time_spec_t>();
             _iface->poke32(UE_REG_TIME64_TICKS, time_spec.get_tick_count(_clock_ctrl->get_fpga_clock_rate()));
             boost::uint32_t imm_flags = (key.as<mboard_prop_t>() == MBOARD_PROP_TIME_NOW)? 1 : 0;
diff --git a/host/lib/usrp/usrp_e100/usrp_e100_impl.hpp b/host/lib/usrp/usrp_e100/usrp_e100_impl.hpp
index de158ea5e..864e82099 100644
--- a/host/lib/usrp/usrp_e100/usrp_e100_impl.hpp
+++ b/host/lib/usrp/usrp_e100/usrp_e100_impl.hpp
@@ -30,7 +30,7 @@
 #ifndef INCLUDED_USRP_E100_IMPL_HPP
 #define INCLUDED_USRP_E100_IMPL_HPP
 
-static const boost::uint16_t USRP_E_COMPAT_NUM = 0x02;
+static const boost::uint16_t USRP_E_COMPAT_NUM = 0x03;
 
 //! load an fpga image from a bin file into the usrp-e fpga
 extern void usrp_e100_load_fpga(const std::string &bin_file);
diff --git a/host/lib/usrp/usrp_e100/usrp_e100_regs.hpp b/host/lib/usrp/usrp_e100/usrp_e100_regs.hpp
index 625fb2c35..a57fe5171 100644
--- a/host/lib/usrp/usrp_e100/usrp_e100_regs.hpp
+++ b/host/lib/usrp/usrp_e100/usrp_e100_regs.hpp
@@ -114,6 +114,16 @@
 #define	UE_REG_ATR_FULL_RXSIDE  UE_REG_ATR_BASE + 12
 #define	UE_REG_ATR_FULL_TXSIDE  UE_REG_ATR_BASE + 14
 
+///////////////////////////////////////////////////
+// Slave 7 -- Readback Mux 32
+
+#define UE_REG_RB_MUX_32_BASE  UE_REG_SLAVE(7)
+
+#define UE_REG_RB_TIME_NOW_SECS   UE_REG_RB_MUX_32_BASE + 0
+#define UE_REG_RB_TIME_NOW_TICKS  UE_REG_RB_MUX_32_BASE + 4
+#define UE_REG_RB_TIME_PPS_SECS   UE_REG_RB_MUX_32_BASE + 8
+#define UE_REG_RB_TIME_PPS_TICKS  UE_REG_RB_MUX_32_BASE + 12
+
 /////////////////////////////////////////////////
 // DSP RX Regs
 ////////////////////////////////////////////////
diff --git a/host/lib/utils/CMakeLists.txt b/host/lib/utils/CMakeLists.txt
index 60df24eef..5fa5b4d6d 100644
--- a/host/lib/utils/CMakeLists.txt
+++ b/host/lib/utils/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -87,6 +87,7 @@ LIBUHD_APPEND_SOURCES(
     ${CMAKE_CURRENT_SOURCE_DIR}/load_modules.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/paths.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/props.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/static.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/thread_priority.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/warning.cpp
 )
diff --git a/host/lib/utils/gain_group.cpp b/host/lib/utils/gain_group.cpp
index 11bbb8c0a..07aa21115 100644
--- a/host/lib/utils/gain_group.cpp
+++ b/host/lib/utils/gain_group.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -39,7 +39,7 @@ static bool compare_by_step_size(
  * Get a multiple of step with the following relation:
  *     result = step*floor(num/step)
  *
- * Due to small floating-point inaccuracies:
+ * Due to small doubleing-point inaccuracies:
  *     num = n*step + e, where e is a small inaccuracy.
  * When e is negative, floor would yeild (n-1)*step,
  * despite that n*step is really the desired result.
@@ -66,7 +66,7 @@ public:
     gain_range_t get_range(const std::string &name){
         if (not name.empty()) return _name_to_fcns[name].get_range();
 
-        float overall_min = 0, overall_max = 0, overall_step = 0;
+        double overall_min = 0, overall_max = 0, overall_step = 0;
         BOOST_FOREACH(const gain_fcns_t &fcns, get_all_fcns()){
             const gain_range_t range = fcns.get_range();
             overall_min += range.start();
@@ -78,33 +78,33 @@ public:
         return gain_range_t(overall_min, overall_max, overall_step);
     }
 
-    float get_value(const std::string &name){
+    double get_value(const std::string &name){
         if (not name.empty()) return _name_to_fcns[name].get_value();
 
-        float overall_gain = 0;
+        double overall_gain = 0;
         BOOST_FOREACH(const gain_fcns_t &fcns, get_all_fcns()){
             overall_gain += fcns.get_value();
         }
         return overall_gain;
     }
 
-    void set_value(float gain, const std::string &name){
+    void set_value(double gain, const std::string &name){
         if (not name.empty()) return _name_to_fcns[name].set_value(gain);
 
         std::vector<gain_fcns_t> all_fcns = get_all_fcns();
         if (all_fcns.size() == 0) return; //nothing to set!
 
         //get the max step size among the gains
-        float max_step = 0;
+        double max_step = 0;
         BOOST_FOREACH(const gain_fcns_t &fcns, all_fcns){
             max_step = std::max(max_step, fcns.get_range().step());
         }
 
         //create gain bucket to distribute power
-        std::vector<float> gain_bucket;
+        std::vector<double> gain_bucket;
 
         //distribute power according to priority (round to max step)
-        float gain_left_to_distribute = gain;
+        double gain_left_to_distribute = gain;
         BOOST_FOREACH(const gain_fcns_t &fcns, all_fcns){
             const gain_range_t range = fcns.get_range();
             gain_bucket.push_back(floor_step(std::clip(
@@ -131,7 +131,7 @@ public:
         //fill in the largest step sizes first that are less than the remainder
         BOOST_FOREACH(size_t i, indexes_step_size_dec){
             const gain_range_t range = all_fcns.at(i).get_range();
-            float additional_gain = floor_step(std::clip(
+            double additional_gain = floor_step(std::clip(
                 gain_bucket.at(i) + gain_left_to_distribute, range.start(), range.stop()
             ), range.step()) - gain_bucket.at(i);
             gain_bucket.at(i) += additional_gain;
diff --git a/host/lib/utils/paths.cpp b/host/lib/utils/paths.cpp
index 9e9525caf..93d15d290 100644
--- a/host/lib/utils/paths.cpp
+++ b/host/lib/utils/paths.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -17,7 +17,7 @@
 
 #include "constants.hpp"
 #include <uhd/config.hpp>
-#include <uhd/utils/algorithm.hpp>
+#include <boost/tokenizer.hpp>
 #include <boost/program_options.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/foreach.hpp>
@@ -38,6 +38,10 @@ namespace fs = boost::filesystem;
     static const std::string env_path_sep = ":";
 #endif /*UHD_PLATFORM_WIN32*/
 
+#define path_tokenizer(inp) \
+    boost::tokenizer<boost::char_separator<char> > \
+    (inp, boost::char_separator<char>(env_path_sep.c_str()))
+
 /***********************************************************************
  * Get a list of paths for an environment variable
  **********************************************************************/
@@ -60,7 +64,7 @@ static std::vector<fs::path> get_env_paths(const std::string &var_name){
 
     //convert to filesystem path, filter blank paths
     std::vector<fs::path> paths;
-    BOOST_FOREACH(const std::string &path_string, std::split_string(var_value, env_path_sep)){
+    BOOST_FOREACH(const std::string &path_string, path_tokenizer(var_value)){
         if (path_string.empty()) continue;
         paths.push_back(fs::system_complete(path_string));
     }
diff --git a/host/lib/transport/msvc/stdint.h b/host/lib/utils/static.cpp
index b3eb61aae..a0dea3372 100644
--- a/host/lib/transport/msvc/stdint.h
+++ b/host/lib/utils/static.cpp
@@ -1,35 +1,32 @@
-//

-// Copyright 2010 Ettus Research LLC

-//

-// This program is free software: you can redistribute it and/or modify

-// it under the terms of the GNU General Public License as published by

-// the Free Software Foundation, either version 3 of the License, or

-// (at your option) any later version.

-//

-// This program is distributed in the hope that it will be useful,

-// but WITHOUT ANY WARRANTY; without even the implied warranty of

-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

-// GNU General Public License for more details.

-//

-// You should have received a copy of the GNU General Public License

-// along with this program.  If not, see <http://www.gnu.org/licenses/>.

-//

-

-#ifndef INCLUDED_LIBUHD_TRANSPORT_STDINT_H

-#define INCLUDED_LIBUHD_TRANSPORT_STDINT_H

-

-#include <boost/cstdint.hpp>

-

-//provide a stdint implementation for libusb

-

-typedef boost::uint64_t uint64_t;

-typedef boost::uint32_t uint32_t;

-typedef boost::uint16_t uint16_t;

-typedef boost::uint8_t uint8_t;

-

-typedef boost::int64_t int64_t;

-typedef boost::int32_t int32_t;

-typedef boost::int16_t int16_t;

-typedef boost::int8_t int8_t;

-

-#endif /* INCLUDED_LIBUHD_TRANSPORT_STDINT_H */

+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/static.hpp>
+#include <stdexcept>
+#include <iostream>
+_uhd_static_fixture::_uhd_static_fixture(void (*fcn)(void), const char *name){
+    try{
+        fcn();
+    }
+    catch(const std::exception &e){
+        std::cerr << "Exception in static block " << name << std::endl;
+        std::cerr << "  " << e.what() << std::endl;
+    }
+    catch(...){
+        std::cerr << "Exception in static block " << name << std::endl;
+    }
+}
diff --git a/host/lib/utils/warning.cpp b/host/lib/utils/warning.cpp
index 05be7ae4d..bc4c79b6e 100644
--- a/host/lib/utils/warning.cpp
+++ b/host/lib/utils/warning.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -16,7 +16,7 @@
 //
 
 #include <uhd/utils/warning.hpp>
-#include <uhd/utils/algorithm.hpp>
+#include <boost/tokenizer.hpp>
 #include <uhd/utils/static.hpp>
 #include <uhd/types/dict.hpp>
 #include <boost/foreach.hpp>
@@ -27,6 +27,10 @@
 
 using namespace uhd;
 
+#define tokenizer(inp, sep) \
+    boost::tokenizer<boost::char_separator<char> > \
+    (inp, boost::char_separator<char>(sep))
+
 /***********************************************************************
  * Registry implementation
  **********************************************************************/
@@ -52,7 +56,7 @@ void warning::post(const std::string &msg){
 
     //format the warning message
     ss << std::endl << "Warning:" << std::endl;
-    BOOST_FOREACH(const std::string &line, std::split_string(msg, "\n")){
+    BOOST_FOREACH(const std::string &line, tokenizer(msg, "\n")){
         ss << "    " << line << std::endl;
     }
 
diff --git a/host/msvc/inttypes.h b/host/msvc/inttypes.h
new file mode 100644
index 000000000..1c2baa82e
--- /dev/null
+++ b/host/msvc/inttypes.h
@@ -0,0 +1,301 @@
+// ISO C9x  compliant inttypes.h for Microsoft Visual Studio
+// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 
+// 
+//  Copyright (c) 2006 Alexander Chemeris
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+// 
+//   1. Redistributions of source code must retain the above copyright notice,
+//      this list of conditions and the following disclaimer.
+// 
+//   2. Redistributions in binary form must reproduce the above copyright
+//      notice, this list of conditions and the following disclaimer in the
+//      documentation and/or other materials provided with the distribution.
+// 
+//   3. The name of the author may be used to endorse or promote products
+//      derived from this software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// 
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _MSC_VER // [
+#error "Use this header only with Microsoft Visual C++ compilers!"
+#endif // _MSC_VER ]
+
+#ifndef _MSC_INTTYPES_H_ // [
+#define _MSC_INTTYPES_H_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif
+
+#include <stdint.h>
+
+// 7.8 Format conversion of integer types
+
+typedef struct {
+   intmax_t quot;
+   intmax_t rem;
+} imaxdiv_t;
+
+// 7.8.1 Macros for format specifiers
+
+// The fprintf macros for signed integers are:
+#define PRId8       "d"
+#define PRIi8       "i"
+#define PRIdLEAST8  "d"
+#define PRIiLEAST8  "i"
+#define PRIdFAST8   "d"
+#define PRIiFAST8   "i"
+
+#define PRId16       "hd"
+#define PRIi16       "hi"
+#define PRIdLEAST16  "hd"
+#define PRIiLEAST16  "hi"
+#define PRIdFAST16   "hd"
+#define PRIiFAST16   "hi"
+
+#define PRId32       "I32d"
+#define PRIi32       "I32i"
+#define PRIdLEAST32  "I32d"
+#define PRIiLEAST32  "I32i"
+#define PRIdFAST32   "I32d"
+#define PRIiFAST32   "I32i"
+
+#define PRId64       "I64d"
+#define PRIi64       "I64i"
+#define PRIdLEAST64  "I64d"
+#define PRIiLEAST64  "I64i"
+#define PRIdFAST64   "I64d"
+#define PRIiFAST64   "I64i"
+
+#define PRIdMAX     "I64d"
+#define PRIiMAX     "I64i"
+
+#define PRIdPTR     "Id"
+#define PRIiPTR     "Ii"
+
+// The fprintf macros for unsigned integers are:
+#define PRIo8       "o"
+#define PRIu8       "u"
+#define PRIx8       "x"
+#define PRIX8       "X"
+#define PRIoLEAST8  "o"
+#define PRIuLEAST8  "u"
+#define PRIxLEAST8  "x"
+#define PRIXLEAST8  "X"
+#define PRIoFAST8   "o"
+#define PRIuFAST8   "u"
+#define PRIxFAST8   "x"
+#define PRIXFAST8   "X"
+
+#define PRIo16       "ho"
+#define PRIu16       "hu"
+#define PRIx16       "hx"
+#define PRIX16       "hX"
+#define PRIoLEAST16  "ho"
+#define PRIuLEAST16  "hu"
+#define PRIxLEAST16  "hx"
+#define PRIXLEAST16  "hX"
+#define PRIoFAST16   "ho"
+#define PRIuFAST16   "hu"
+#define PRIxFAST16   "hx"
+#define PRIXFAST16   "hX"
+
+#define PRIo32       "I32o"
+#define PRIu32       "I32u"
+#define PRIx32       "I32x"
+#define PRIX32       "I32X"
+#define PRIoLEAST32  "I32o"
+#define PRIuLEAST32  "I32u"
+#define PRIxLEAST32  "I32x"
+#define PRIXLEAST32  "I32X"
+#define PRIoFAST32   "I32o"
+#define PRIuFAST32   "I32u"
+#define PRIxFAST32   "I32x"
+#define PRIXFAST32   "I32X"
+
+#define PRIo64       "I64o"
+#define PRIu64       "I64u"
+#define PRIx64       "I64x"
+#define PRIX64       "I64X"
+#define PRIoLEAST64  "I64o"
+#define PRIuLEAST64  "I64u"
+#define PRIxLEAST64  "I64x"
+#define PRIXLEAST64  "I64X"
+#define PRIoFAST64   "I64o"
+#define PRIuFAST64   "I64u"
+#define PRIxFAST64   "I64x"
+#define PRIXFAST64   "I64X"
+
+#define PRIoMAX     "I64o"
+#define PRIuMAX     "I64u"
+#define PRIxMAX     "I64x"
+#define PRIXMAX     "I64X"
+
+#define PRIoPTR     "Io"
+#define PRIuPTR     "Iu"
+#define PRIxPTR     "Ix"
+#define PRIXPTR     "IX"
+
+// The fscanf macros for signed integers are:
+#define SCNd8       "d"
+#define SCNi8       "i"
+#define SCNdLEAST8  "d"
+#define SCNiLEAST8  "i"
+#define SCNdFAST8   "d"
+#define SCNiFAST8   "i"
+
+#define SCNd16       "hd"
+#define SCNi16       "hi"
+#define SCNdLEAST16  "hd"
+#define SCNiLEAST16  "hi"
+#define SCNdFAST16   "hd"
+#define SCNiFAST16   "hi"
+
+#define SCNd32       "ld"
+#define SCNi32       "li"
+#define SCNdLEAST32  "ld"
+#define SCNiLEAST32  "li"
+#define SCNdFAST32   "ld"
+#define SCNiFAST32   "li"
+
+#define SCNd64       "I64d"
+#define SCNi64       "I64i"
+#define SCNdLEAST64  "I64d"
+#define SCNiLEAST64  "I64i"
+#define SCNdFAST64   "I64d"
+#define SCNiFAST64   "I64i"
+
+#define SCNdMAX     "I64d"
+#define SCNiMAX     "I64i"
+
+#ifdef _WIN64 // [
+#  define SCNdPTR     "I64d"
+#  define SCNiPTR     "I64i"
+#else  // _WIN64 ][
+#  define SCNdPTR     "ld"
+#  define SCNiPTR     "li"
+#endif  // _WIN64 ]
+
+// The fscanf macros for unsigned integers are:
+#define SCNo8       "o"
+#define SCNu8       "u"
+#define SCNx8       "x"
+#define SCNX8       "X"
+#define SCNoLEAST8  "o"
+#define SCNuLEAST8  "u"
+#define SCNxLEAST8  "x"
+#define SCNXLEAST8  "X"
+#define SCNoFAST8   "o"
+#define SCNuFAST8   "u"
+#define SCNxFAST8   "x"
+#define SCNXFAST8   "X"
+
+#define SCNo16       "ho"
+#define SCNu16       "hu"
+#define SCNx16       "hx"
+#define SCNX16       "hX"
+#define SCNoLEAST16  "ho"
+#define SCNuLEAST16  "hu"
+#define SCNxLEAST16  "hx"
+#define SCNXLEAST16  "hX"
+#define SCNoFAST16   "ho"
+#define SCNuFAST16   "hu"
+#define SCNxFAST16   "hx"
+#define SCNXFAST16   "hX"
+
+#define SCNo32       "lo"
+#define SCNu32       "lu"
+#define SCNx32       "lx"
+#define SCNX32       "lX"
+#define SCNoLEAST32  "lo"
+#define SCNuLEAST32  "lu"
+#define SCNxLEAST32  "lx"
+#define SCNXLEAST32  "lX"
+#define SCNoFAST32   "lo"
+#define SCNuFAST32   "lu"
+#define SCNxFAST32   "lx"
+#define SCNXFAST32   "lX"
+
+#define SCNo64       "I64o"
+#define SCNu64       "I64u"
+#define SCNx64       "I64x"
+#define SCNX64       "I64X"
+#define SCNoLEAST64  "I64o"
+#define SCNuLEAST64  "I64u"
+#define SCNxLEAST64  "I64x"
+#define SCNXLEAST64  "I64X"
+#define SCNoFAST64   "I64o"
+#define SCNuFAST64   "I64u"
+#define SCNxFAST64   "I64x"
+#define SCNXFAST64   "I64X"
+
+#define SCNoMAX     "I64o"
+#define SCNuMAX     "I64u"
+#define SCNxMAX     "I64x"
+#define SCNXMAX     "I64X"
+
+#ifdef _WIN64 // [
+#  define SCNoPTR     "I64o"
+#  define SCNuPTR     "I64u"
+#  define SCNxPTR     "I64x"
+#  define SCNXPTR     "I64X"
+#else  // _WIN64 ][
+#  define SCNoPTR     "lo"
+#  define SCNuPTR     "lu"
+#  define SCNxPTR     "lx"
+#  define SCNXPTR     "lX"
+#endif  // _WIN64 ]
+
+// 7.8.2 Functions for greatest-width integer types
+
+// 7.8.2.1 The imaxabs function
+#define imaxabs _abs64
+
+// 7.8.2.2 The imaxdiv function
+
+// This is modified version of div() function from Microsoft's div.c found
+// in %MSVC.NET%\crt\src\div.c
+#ifdef STATIC_IMAXDIV // [
+static
+#else // STATIC_IMAXDIV ][
+_inline
+#endif // STATIC_IMAXDIV ]
+imaxdiv_t __cdecl imaxdiv(intmax_t numer, intmax_t denom)
+{
+   imaxdiv_t result;
+
+   result.quot = numer / denom;
+   result.rem = numer % denom;
+
+   if (numer < 0 && result.rem > 0) {
+      // did division wrong; must fix up
+      ++result.quot;
+      result.rem -= denom;
+   }
+
+   return result;
+}
+
+// 7.8.2.3 The strtoimax and strtoumax functions
+#define strtoimax _strtoi64
+#define strtoumax _strtoui64
+
+// 7.8.2.4 The wcstoimax and wcstoumax functions
+#define wcstoimax _wcstoi64
+#define wcstoumax _wcstoui64
+
+
+#endif // _MSC_INTTYPES_H_ ]
diff --git a/host/msvc/stdint.h b/host/msvc/stdint.h
new file mode 100644
index 000000000..15333b467
--- /dev/null
+++ b/host/msvc/stdint.h
@@ -0,0 +1,226 @@
+// ISO C9x  compliant stdint.h for Microsoft Visual Studio
+// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 
+// 
+//  Copyright (c) 2006 Alexander Chemeris
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+// 
+//   1. Redistributions of source code must retain the above copyright notice,
+//      this list of conditions and the following disclaimer.
+// 
+//   2. Redistributions in binary form must reproduce the above copyright
+//      notice, this list of conditions and the following disclaimer in the
+//      documentation and/or other materials provided with the distribution.
+// 
+//   3. The name of the author may be used to endorse or promote products
+//      derived from this software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// 
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _MSC_VER // [
+#error "Use this header only with Microsoft Visual C++ compilers!"
+#endif // _MSC_VER ]
+
+#ifndef _MSC_STDINT_H_ // [
+#define _MSC_STDINT_H_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif
+
+#include <limits.h>
+
+// For Visual Studio 6 in C++ mode wrap <wchar.h> include with 'extern "C++" {}'
+// or compiler give many errors like this:
+//   error C2733: second C linkage of overloaded function 'wmemchr' not allowed
+#if (_MSC_VER < 1300) && defined(__cplusplus)
+   extern "C++" {
+#endif 
+#     include <wchar.h>
+#if (_MSC_VER < 1300) && defined(__cplusplus)
+   }
+#endif
+
+// 7.18.1 Integer types
+
+// 7.18.1.1 Exact-width integer types
+typedef __int8            int8_t;
+typedef __int16           int16_t;
+typedef __int32           int32_t;
+typedef __int64           int64_t;
+typedef unsigned __int8   uint8_t;
+typedef unsigned __int16  uint16_t;
+typedef unsigned __int32  uint32_t;
+typedef unsigned __int64  uint64_t;
+
+// 7.18.1.2 Minimum-width integer types
+typedef int8_t    int_least8_t;
+typedef int16_t   int_least16_t;
+typedef int32_t   int_least32_t;
+typedef int64_t   int_least64_t;
+typedef uint8_t   uint_least8_t;
+typedef uint16_t  uint_least16_t;
+typedef uint32_t  uint_least32_t;
+typedef uint64_t  uint_least64_t;
+
+// 7.18.1.3 Fastest minimum-width integer types
+typedef int8_t    int_fast8_t;
+typedef int16_t   int_fast16_t;
+typedef int32_t   int_fast32_t;
+typedef int64_t   int_fast64_t;
+typedef uint8_t   uint_fast8_t;
+typedef uint16_t  uint_fast16_t;
+typedef uint32_t  uint_fast32_t;
+typedef uint64_t  uint_fast64_t;
+
+// 7.18.1.4 Integer types capable of holding object pointers
+#ifdef _WIN64 // [
+   typedef __int64           intptr_t;
+   typedef unsigned __int64  uintptr_t;
+#else // _WIN64 ][
+   typedef int               intptr_t;
+   typedef unsigned int      uintptr_t;
+#endif // _WIN64 ]
+
+// 7.18.1.5 Greatest-width integer types
+typedef int64_t   intmax_t;
+typedef uint64_t  uintmax_t;
+
+
+// 7.18.2 Limits of specified-width integer types
+
+#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [   See footnote 220 at page 257 and footnote 221 at page 259
+
+// 7.18.2.1 Limits of exact-width integer types
+#define INT8_MIN     ((int8_t)_I8_MIN)
+#define INT8_MAX     _I8_MAX
+#define INT16_MIN    ((int16_t)_I16_MIN)
+#define INT16_MAX    _I16_MAX
+#define INT32_MIN    ((int32_t)_I32_MIN)
+#define INT32_MAX    _I32_MAX
+#define INT64_MIN    ((int64_t)_I64_MIN)
+#define INT64_MAX    _I64_MAX
+#define UINT8_MAX    _UI8_MAX
+#define UINT16_MAX   _UI16_MAX
+#define UINT32_MAX   _UI32_MAX
+#define UINT64_MAX   _UI64_MAX
+
+// 7.18.2.2 Limits of minimum-width integer types
+#define INT_LEAST8_MIN    INT8_MIN
+#define INT_LEAST8_MAX    INT8_MAX
+#define INT_LEAST16_MIN   INT16_MIN
+#define INT_LEAST16_MAX   INT16_MAX
+#define INT_LEAST32_MIN   INT32_MIN
+#define INT_LEAST32_MAX   INT32_MAX
+#define INT_LEAST64_MIN   INT64_MIN
+#define INT_LEAST64_MAX   INT64_MAX
+#define UINT_LEAST8_MAX   UINT8_MAX
+#define UINT_LEAST16_MAX  UINT16_MAX
+#define UINT_LEAST32_MAX  UINT32_MAX
+#define UINT_LEAST64_MAX  UINT64_MAX
+
+// 7.18.2.3 Limits of fastest minimum-width integer types
+#define INT_FAST8_MIN    INT8_MIN
+#define INT_FAST8_MAX    INT8_MAX
+#define INT_FAST16_MIN   INT16_MIN
+#define INT_FAST16_MAX   INT16_MAX
+#define INT_FAST32_MIN   INT32_MIN
+#define INT_FAST32_MAX   INT32_MAX
+#define INT_FAST64_MIN   INT64_MIN
+#define INT_FAST64_MAX   INT64_MAX
+#define UINT_FAST8_MAX   UINT8_MAX
+#define UINT_FAST16_MAX  UINT16_MAX
+#define UINT_FAST32_MAX  UINT32_MAX
+#define UINT_FAST64_MAX  UINT64_MAX
+
+// 7.18.2.4 Limits of integer types capable of holding object pointers
+#ifdef _WIN64 // [
+#  define INTPTR_MIN   INT64_MIN
+#  define INTPTR_MAX   INT64_MAX
+#  define UINTPTR_MAX  UINT64_MAX
+#else // _WIN64 ][
+#  define INTPTR_MIN   INT32_MIN
+#  define INTPTR_MAX   INT32_MAX
+#  define UINTPTR_MAX  UINT32_MAX
+#endif // _WIN64 ]
+
+// 7.18.2.5 Limits of greatest-width integer types
+#define INTMAX_MIN   INT64_MIN
+#define INTMAX_MAX   INT64_MAX
+#define UINTMAX_MAX  UINT64_MAX
+
+// 7.18.3 Limits of other integer types
+
+#ifdef _WIN64 // [
+#  define PTRDIFF_MIN  _I64_MIN
+#  define PTRDIFF_MAX  _I64_MAX
+#else  // _WIN64 ][
+#  define PTRDIFF_MIN  _I32_MIN
+#  define PTRDIFF_MAX  _I32_MAX
+#endif  // _WIN64 ]
+
+#define SIG_ATOMIC_MIN  INT_MIN
+#define SIG_ATOMIC_MAX  INT_MAX
+
+#ifndef SIZE_MAX // [
+#  ifdef _WIN64 // [
+#     define SIZE_MAX  _UI64_MAX
+#  else // _WIN64 ][
+#     define SIZE_MAX  _UI32_MAX
+#  endif // _WIN64 ]
+#endif // SIZE_MAX ]
+
+// WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h>
+#ifndef WCHAR_MIN // [
+#  define WCHAR_MIN  0
+#endif  // WCHAR_MIN ]
+#ifndef WCHAR_MAX // [
+#  define WCHAR_MAX  _UI16_MAX
+#endif  // WCHAR_MAX ]
+
+#define WINT_MIN  0
+#define WINT_MAX  _UI16_MAX
+
+#endif // __STDC_LIMIT_MACROS ]
+
+
+// 7.18.4 Limits of other integer types
+
+#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [   See footnote 224 at page 260
+
+// 7.18.4.1 Macros for minimum-width integer constants
+
+#define INT8_C(val)  val##i8
+#define INT16_C(val) val##i16
+#define INT32_C(val) val##i32
+#define INT64_C(val) val##i64
+
+#define UINT8_C(val)  val##ui8
+#define UINT16_C(val) val##ui16
+#define UINT32_C(val) val##ui32
+#define UINT64_C(val) val##ui64
+
+// 7.18.4.2 Macros for greatest-width integer constants
+#ifndef INTMAX_C
+#define INTMAX_C   INT64_C
+#endif
+#ifndef UINTMAX_C
+#define UINTMAX_C  UINT64_C
+#endif
+
+#endif // __STDC_CONSTANT_MACROS ]
+
+
+#endif // _MSC_STDINT_H_ ]
diff --git a/host/test/CMakeLists.txt b/host/tests/CMakeLists.txt
index bdbde4b2c..79b20cd47 100644
--- a/host/test/CMakeLists.txt
+++ b/host/tests/CMakeLists.txt
@@ -1,5 +1,5 @@
 #
-# Copyright 2010 Ettus Research LLC
+# Copyright 2010-2011 Ettus Research LLC
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -22,7 +22,7 @@ SET(test_sources
     addr_test.cpp
     buffer_test.cpp
     byteswap_test.cpp
-    convert_types_test.cpp
+    convert_test.cpp
     dict_test.cpp
     error_test.cpp
     gain_group_test.cpp
@@ -51,6 +51,7 @@ ENDFOREACH(test_source)
 # demo of a loadable module
 ########################################################################
 ADD_LIBRARY(module_test MODULE module_test.cpp)
+TARGET_LINK_LIBRARIES(module_test uhd)
 
 INSTALL(TARGETS
    RUNTIME DESTINATION ${PKG_DATA_DIR}/tests
diff --git a/host/test/addr_test.cpp b/host/tests/addr_test.cpp
index d4b45aa1a..d4b45aa1a 100644
--- a/host/test/addr_test.cpp
+++ b/host/tests/addr_test.cpp
diff --git a/host/test/buffer_test.cpp b/host/tests/buffer_test.cpp
index 8445412e7..e7bc88699 100644
--- a/host/test/buffer_test.cpp
+++ b/host/tests/buffer_test.cpp
@@ -17,7 +17,6 @@
 
 #include <boost/test/unit_test.hpp>
 #include <uhd/transport/bounded_buffer.hpp>
-#include <uhd/transport/alignment_buffer.hpp>
 #include <boost/assign/list_of.hpp>
 
 using namespace boost::assign;
@@ -63,53 +62,3 @@ BOOST_AUTO_TEST_CASE(test_bounded_buffer_with_pop_on_full){
     BOOST_CHECK(bb->pop_with_timed_wait(val, timeout));
     BOOST_CHECK_EQUAL(val, 3);
 }
-
-BOOST_AUTO_TEST_CASE(test_alignment_buffer){
-    alignment_buffer<int, size_t>::sptr ab(alignment_buffer<int, size_t>::make(7, 3));
-    //load index 0 with all good seq numbers
-    BOOST_CHECK(ab->push_with_pop_on_full(0, 0, 0));
-    BOOST_CHECK(ab->push_with_pop_on_full(1, 1, 0));
-    BOOST_CHECK(ab->push_with_pop_on_full(2, 2, 0));
-    BOOST_CHECK(ab->push_with_pop_on_full(3, 3, 0));
-    BOOST_CHECK(ab->push_with_pop_on_full(4, 4, 0));
-
-    //load index 1 with some skipped seq numbers
-    BOOST_CHECK(ab->push_with_pop_on_full(10, 0, 1));
-    BOOST_CHECK(ab->push_with_pop_on_full(11, 1, 1));
-    BOOST_CHECK(ab->push_with_pop_on_full(14, 4, 1));
-    BOOST_CHECK(ab->push_with_pop_on_full(15, 5, 1));
-    BOOST_CHECK(ab->push_with_pop_on_full(16, 6, 1));
-
-    //load index 2 with all good seq numbers
-    BOOST_CHECK(ab->push_with_pop_on_full(20, 0, 2));
-    BOOST_CHECK(ab->push_with_pop_on_full(21, 1, 2));
-    BOOST_CHECK(ab->push_with_pop_on_full(22, 2, 2));
-    BOOST_CHECK(ab->push_with_pop_on_full(23, 3, 2));
-    BOOST_CHECK(ab->push_with_pop_on_full(24, 4, 2));
-
-    //readback aligned values
-    std::vector<int> aligned_elems(3);
-
-    static const std::vector<int> expected_elems0 = list_of(0)(10)(20);
-    BOOST_CHECK(ab->pop_elems_with_timed_wait(aligned_elems, timeout));
-    BOOST_CHECK_EQUAL_COLLECTIONS(
-        aligned_elems.begin(), aligned_elems.end(),
-        expected_elems0.begin(), expected_elems0.end()
-    );
-
-    static const std::vector<int> expected_elems1 = list_of(1)(11)(21);
-    BOOST_CHECK(ab->pop_elems_with_timed_wait(aligned_elems, timeout));
-    BOOST_CHECK_EQUAL_COLLECTIONS(
-        aligned_elems.begin(), aligned_elems.end(),
-        expected_elems1.begin(), expected_elems1.end()
-    );
-
-    //there was a skip now find 4
-
-    static const std::vector<int> expected_elems4 = list_of(4)(14)(24);
-    BOOST_CHECK(ab->pop_elems_with_timed_wait(aligned_elems, timeout));
-    BOOST_CHECK_EQUAL_COLLECTIONS(
-        aligned_elems.begin(), aligned_elems.end(),
-        expected_elems4.begin(), expected_elems4.end()
-    );
-}
diff --git a/host/test/byteswap_test.cpp b/host/tests/byteswap_test.cpp
index 3d50c9bfa..3d50c9bfa 100644
--- a/host/test/byteswap_test.cpp
+++ b/host/tests/byteswap_test.cpp
diff --git a/host/test/convert_types_test.cpp b/host/tests/convert_test.cpp
index 378e184de..5f2aaf3d1 100644
--- a/host/test/convert_types_test.cpp
+++ b/host/tests/convert_test.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2011-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,14 +15,14 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //
 
-#include <uhd/transport/convert_types.hpp>
+#include <uhd/convert.hpp>
 #include <boost/test/unit_test.hpp>
 #include <boost/foreach.hpp>
 #include <boost/cstdint.hpp>
-#include <boost/asio/buffer.hpp>
 #include <complex>
 #include <vector>
 #include <cstdlib>
+#include <iostream>
 
 using namespace uhd;
 
@@ -30,14 +30,6 @@ using namespace uhd;
 typedef std::complex<boost::int16_t> sc16_t;
 typedef std::complex<float> fc32_t;
 
-//extract pointer to POD since using &vector.front() throws in MSVC
-template <typename T> void * pod2ptr(T &pod){
-    return boost::asio::buffer_cast<void *>(boost::asio::buffer(pod));
-}
-template <typename T> const void * pod2ptr(const T &pod){
-    return boost::asio::buffer_cast<const void *>(boost::asio::buffer(pod));
-}
-
 #define MY_CHECK_CLOSE(a, b, f) if ((std::abs(a) > (f) and std::abs(b) > (f))) \
     BOOST_CHECK_CLOSE_FRACTION(a, b, f)
 
@@ -54,21 +46,20 @@ template <typename Range> static void loopback(
     Range &output
 ){
     //item32 is largest device type
-    std::vector<boost::uint32_t> dev(nsamps);
+    std::vector<boost::uint32_t> interm(nsamps);
 
-    //convert to dev type
-    transport::convert_io_type_to_otw_type(
-        pod2ptr(input), io_type,
-        pod2ptr(dev), otw_type,
-        nsamps
-    );
+    convert::input_type input0(1, &input[0]), input1(1, &interm[0]);
+    convert::output_type output0(1, &interm[0]), output1(1, &output[0]);
+
+    //convert to intermediate type
+    convert::get_converter_cpu_to_otw(
+        io_type, otw_type, input0.size(), output0.size()
+    )(input0, output0, nsamps);
 
     //convert back to host type
-    transport::convert_otw_type_to_io_type(
-        pod2ptr(dev), otw_type,
-        pod2ptr(output), io_type,
-        nsamps
-    );
+    convert::get_converter_otw_to_cpu(
+        io_type, otw_type, input1.size(), output1.size()
+    )(input1, output1, nsamps);
 }
 
 /***********************************************************************
@@ -98,7 +89,7 @@ BOOST_AUTO_TEST_CASE(test_convert_types_be_sc16){
     otw_type.width = 16;
 
     //try various lengths to test edge cases
-    for (size_t nsamps = 0; nsamps < 16; nsamps++){
+    for (size_t nsamps = 1; nsamps < 16; nsamps++){
         test_convert_types_sc16(nsamps, io_type, otw_type);
     }
 }
@@ -110,7 +101,7 @@ BOOST_AUTO_TEST_CASE(test_convert_types_le_sc16){
     otw_type.width = 16;
 
     //try various lengths to test edge cases
-    for (size_t nsamps = 0; nsamps < 16; nsamps++){
+    for (size_t nsamps = 1; nsamps < 16; nsamps++){
         test_convert_types_sc16(nsamps, io_type, otw_type);
     }
 }
@@ -145,7 +136,7 @@ BOOST_AUTO_TEST_CASE(test_convert_types_be_fc32){
     otw_type.width = 16;
 
     //try various lengths to test edge cases
-    for (size_t nsamps = 0; nsamps < 16; nsamps++){
+    for (size_t nsamps = 1; nsamps < 16; nsamps++){
         test_convert_types_fc32(nsamps, io_type, otw_type);
     }
 }
@@ -157,7 +148,7 @@ BOOST_AUTO_TEST_CASE(test_convert_types_le_fc32){
     otw_type.width = 16;
 
     //try various lengths to test edge cases
-    for (size_t nsamps = 0; nsamps < 16; nsamps++){
+    for (size_t nsamps = 1; nsamps < 16; nsamps++){
         test_convert_types_fc32(nsamps, io_type, otw_type);
     }
 }
@@ -179,22 +170,21 @@ BOOST_AUTO_TEST_CASE(test_convert_types_fc32_to_sc16){
         (std::rand()/float(RAND_MAX/2)) - 1,
         (std::rand()/float(RAND_MAX/2)) - 1
     );
+    std::vector<boost::uint32_t> interm(nsamps);
+    std::vector<sc16_t> output(nsamps);
 
-    //convert float to dev
-    std::vector<boost::uint32_t> tmp(nsamps);
-    transport::convert_io_type_to_otw_type(
-        pod2ptr(input), io_type_in,
-        pod2ptr(tmp), otw_type,
-        nsamps
-    );
+    convert::input_type input0(1, &input[0]), input1(1, &interm[0]);
+    convert::output_type output0(1, &interm[0]), output1(1, &output[0]);
 
-    //convert dev to short
-    std::vector<sc16_t> output(nsamps);
-    transport::convert_otw_type_to_io_type(
-        pod2ptr(tmp), otw_type,
-        pod2ptr(output), io_type_out,
-        nsamps
-    );
+    //convert float to intermediate
+    convert::get_converter_cpu_to_otw(
+        io_type_in, otw_type, input0.size(), output0.size()
+    )(input0, output0, nsamps);
+
+    //convert intermediate to short
+    convert::get_converter_otw_to_cpu(
+        io_type_out, otw_type, input1.size(), output1.size()
+    )(input1, output1, nsamps);
 
     //test that the inputs and outputs match
     for (size_t i = 0; i < nsamps; i++){
@@ -220,22 +210,21 @@ BOOST_AUTO_TEST_CASE(test_convert_types_sc16_to_fc32){
         std::rand()-(RAND_MAX/2),
         std::rand()-(RAND_MAX/2)
     );
+    std::vector<boost::uint32_t> interm(nsamps);
+    std::vector<fc32_t> output(nsamps);
 
-    //convert short to dev
-    std::vector<boost::uint32_t> tmp(nsamps);
-    transport::convert_io_type_to_otw_type(
-        pod2ptr(input), io_type_in,
-        pod2ptr(tmp), otw_type,
-        nsamps
-    );
+    convert::input_type input0(1, &input[0]), input1(1, &interm[0]);
+    convert::output_type output0(1, &interm[0]), output1(1, &output[0]);
 
-    //convert dev to float
-    std::vector<fc32_t> output(nsamps);
-    transport::convert_otw_type_to_io_type(
-        pod2ptr(tmp), otw_type,
-        pod2ptr(output), io_type_out,
-        nsamps
-    );
+    //convert short to intermediate
+    convert::get_converter_cpu_to_otw(
+        io_type_in, otw_type, input0.size(), output0.size()
+    )(input0, output0, nsamps);
+
+    //convert intermediate to float
+    convert::get_converter_otw_to_cpu(
+        io_type_out, otw_type, input1.size(), output1.size()
+    )(input1, output1, nsamps);
 
     //test that the inputs and outputs match
     for (size_t i = 0; i < nsamps; i++){
diff --git a/host/test/dict_test.cpp b/host/tests/dict_test.cpp
index 0501a7878..0501a7878 100644
--- a/host/test/dict_test.cpp
+++ b/host/tests/dict_test.cpp
diff --git a/host/test/error_test.cpp b/host/tests/error_test.cpp
index c76a15ab7..c76a15ab7 100644
--- a/host/test/error_test.cpp
+++ b/host/tests/error_test.cpp
diff --git a/host/test/gain_group_test.cpp b/host/tests/gain_group_test.cpp
index dbb585987..53142ef21 100644
--- a/host/test/gain_group_test.cpp
+++ b/host/tests/gain_group_test.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -35,37 +35,37 @@ public:
         return gain_range_t(0, 90, 1);
     }
 
-    float get_value(void){
+    double get_value(void){
         return _gain;
     }
 
-    void set_value(float gain){
-        float step = get_range().step();
+    void set_value(double gain){
+        double step = get_range().step();
         _gain = step*rint(gain/step);
     }
 
 private:
-    float _gain;
+    double _gain;
 };
 
 class gain_element2{
 public:
 
     gain_range_t get_range(void){
-        return gain_range_t(-20, 10, float(0.1));
+        return gain_range_t(-20, 10, 0.1);
     }
 
-    float get_value(void){
+    double get_value(void){
         return _gain;
     }
 
-    void set_value(float gain){
-        float step = get_range().step();
+    void set_value(double gain){
+        double step = get_range().step();
         _gain = step*rint(gain/step);
     }
 
 private:
-    float _gain;
+    double _gain;
 };
 
 //create static instances of gain elements to be shared by the tests
@@ -94,17 +94,17 @@ static gain_group::sptr get_gain_group(size_t pri1 = 0, size_t pri2 = 0){
 /***********************************************************************
  * Test cases
  **********************************************************************/
-static const float tolerance = float(0.001);
+static const double tolerance = 0.001;
 
 BOOST_AUTO_TEST_CASE(test_gain_group_overall){
     gain_group::sptr gg = get_gain_group();
 
     //test the overall stuff
     gg->set_value(80);
-    BOOST_CHECK_CLOSE(gg->get_value(), float(80), tolerance);
-    BOOST_CHECK_CLOSE(gg->get_range().start(), float(-20), tolerance);
-    BOOST_CHECK_CLOSE(gg->get_range().stop(), float(100), tolerance);
-    BOOST_CHECK_CLOSE(gg->get_range().step(), float(0.1), tolerance);
+    BOOST_CHECK_CLOSE(gg->get_value(), 80, tolerance);
+    BOOST_CHECK_CLOSE(gg->get_range().start(), -20, tolerance);
+    BOOST_CHECK_CLOSE(gg->get_range().stop(), 100, tolerance);
+    BOOST_CHECK_CLOSE(gg->get_range().step(), 0.1, tolerance);
 }
 
 BOOST_AUTO_TEST_CASE(test_gain_group_priority){
@@ -112,10 +112,10 @@ BOOST_AUTO_TEST_CASE(test_gain_group_priority){
 
     //test the overall stuff
     gg->set_value(80);
-    BOOST_CHECK_CLOSE(gg->get_value(), float(80), tolerance);
-    BOOST_CHECK_CLOSE(gg->get_range().start(), float(-20), tolerance);
-    BOOST_CHECK_CLOSE(gg->get_range().stop(), float(100), tolerance);
-    BOOST_CHECK_CLOSE(gg->get_range().step(), float(0.1), tolerance);
+    BOOST_CHECK_CLOSE(gg->get_value(), 80, tolerance);
+    BOOST_CHECK_CLOSE(gg->get_range().start(), -20, tolerance);
+    BOOST_CHECK_CLOSE(gg->get_range().stop(), 100, tolerance);
+    BOOST_CHECK_CLOSE(gg->get_range().step(), 0.1, tolerance);
 
     //test the the higher priority gain got filled first (gain 2)
     BOOST_CHECK_CLOSE(g2.get_value(), g2.get_range().stop(), tolerance);
diff --git a/host/test/module_test.cpp b/host/tests/module_test.cpp
index 47a0e1af9..47a0e1af9 100644
--- a/host/test/module_test.cpp
+++ b/host/tests/module_test.cpp
diff --git a/host/test/ranges_test.cpp b/host/tests/ranges_test.cpp
index ad61867e1..5f6de4645 100644
--- a/host/test/ranges_test.cpp
+++ b/host/tests/ranges_test.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -24,18 +24,18 @@ using namespace uhd;
 static const double tolerance = 0.001;
 
 BOOST_AUTO_TEST_CASE(test_ranges_bounds){
-    meta_range_t<double> mr;
-    mr.push_back(range_t<double>(-1.0, +1.0, 0.1));
+    meta_range_t mr;
+    mr.push_back(range_t(-1.0, +1.0, 0.1));
     BOOST_CHECK_CLOSE(mr.start(), -1.0, tolerance);
     BOOST_CHECK_CLOSE(mr.stop(), +1.0, tolerance);
     BOOST_CHECK_CLOSE(mr.step(), 0.1, tolerance);
 
-    mr.push_back(range_t<double>(40.0, 60.0, 1.0));
+    mr.push_back(range_t(40.0, 60.0, 1.0));
     BOOST_CHECK_CLOSE(mr.start(), -1.0, tolerance);
     BOOST_CHECK_CLOSE(mr.stop(), 60.0, tolerance);
     BOOST_CHECK_CLOSE(mr.step(), 0.1, tolerance);
 
-    BOOST_CHECK_EQUAL(mr.size(), 2);
+    BOOST_CHECK_EQUAL(mr.size(), unsigned(2));
 
     BOOST_CHECK_CLOSE(mr[0].start(), -1.0, tolerance);
     BOOST_CHECK_CLOSE(mr[0].stop(), +1.0, tolerance);
@@ -43,9 +43,9 @@ BOOST_AUTO_TEST_CASE(test_ranges_bounds){
 }
 
 BOOST_AUTO_TEST_CASE(test_ranges_clip){
-    meta_range_t<double> mr;
-    mr.push_back(range_t<double>(-1.0, +1.0, 0.1));
-    mr.push_back(range_t<double>(40.0, 60.0, 1.0));
+    meta_range_t mr;
+    mr.push_back(range_t(-1.0, +1.0, 0.1));
+    mr.push_back(range_t(40.0, 60.0, 1.0));
 
     BOOST_CHECK_CLOSE(mr.clip(-30.0), -1.0, tolerance);
     BOOST_CHECK_CLOSE(mr.clip(70.0), 60.0, tolerance);
diff --git a/host/test/subdev_spec_test.cpp b/host/tests/subdev_spec_test.cpp
index 8817d5eee..8817d5eee 100644
--- a/host/test/subdev_spec_test.cpp
+++ b/host/tests/subdev_spec_test.cpp
diff --git a/host/test/time_spec_test.cpp b/host/tests/time_spec_test.cpp
index 5ad782160..5ad782160 100644
--- a/host/test/time_spec_test.cpp
+++ b/host/tests/time_spec_test.cpp
diff --git a/host/test/tune_helper_test.cpp b/host/tests/tune_helper_test.cpp
index 735e7e948..735e7e948 100644
--- a/host/test/tune_helper_test.cpp
+++ b/host/tests/tune_helper_test.cpp
diff --git a/host/test/vrt_test.cpp b/host/tests/vrt_test.cpp
index 9e131a10b..9e131a10b 100644
--- a/host/test/vrt_test.cpp
+++ b/host/tests/vrt_test.cpp
diff --git a/host/test/warning_test.cpp b/host/tests/warning_test.cpp
index db19955de..db19955de 100644
--- a/host/test/warning_test.cpp
+++ b/host/tests/warning_test.cpp
diff --git a/host/test/wax_test.cpp b/host/tests/wax_test.cpp
index 731f470ed..731f470ed 100644
--- a/host/test/wax_test.cpp
+++ b/host/tests/wax_test.cpp
diff --git a/host/utils/CMakeLists.txt b/host/utils/CMakeLists.txt
index a8e50f72b..2df1c3529 100644
--- a/host/utils/CMakeLists.txt
+++ b/host/utils/CMakeLists.txt
@@ -47,6 +47,7 @@ ENDIF(ENABLE_USRP1)
 
 IF(ENABLE_USRP_E100)
     ENABLE_LANGUAGE(C)
+    INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/lib/usrp/usrp_e100)
     INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/lib/usrp/usrp_e100/include)
     LIST(APPEND util_share_sources
         fpga-downloader.cpp
diff --git a/host/utils/uhd_usrp_probe.cpp b/host/utils/uhd_usrp_probe.cpp
index 5cba7c362..b32131b2a 100644
--- a/host/utils/uhd_usrp_probe.cpp
+++ b/host/utils/uhd_usrp_probe.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -18,7 +18,7 @@
 #include <uhd/utils/safe_main.hpp>
 #include <uhd/device.hpp>
 #include <uhd/types/ranges.hpp>
-#include <uhd/utils/algorithm.hpp>
+#include <boost/algorithm/string.hpp> //for split
 #include <uhd/usrp/device_props.hpp>
 #include <uhd/usrp/mboard_props.hpp>
 #include <uhd/usrp/dboard_props.hpp>
@@ -32,6 +32,7 @@
 #include <boost/foreach.hpp>
 #include <iostream>
 #include <sstream>
+#include <vector>
 
 namespace po = boost::program_options;
 using namespace uhd;
@@ -44,7 +45,7 @@ static std::string make_border(const std::string &text){
     std::stringstream ss;
     ss << boost::format("  _____________________________________________________") << std::endl;
     ss << boost::format(" /") << std::endl;
-    std::vector<std::string> lines = std::split_string(text, "\n");
+    std::vector<std::string> lines; boost::split(lines, text, boost::is_any_of("\n"));
     while (lines.back() == "") lines.pop_back(); //strip trailing newlines
     if (lines.size()) lines[0] = "    " + lines[0]; //indent the title line
     BOOST_FOREACH(const std::string &line, lines){
diff --git a/host/utils/usrp-e-debug-pins.c b/host/utils/usrp-e-debug-pins.c
index 1ed2c8983..94f898b67 100644
--- a/host/utils/usrp-e-debug-pins.c
+++ b/host/utils/usrp-e-debug-pins.c
@@ -7,7 +7,7 @@
 #include <sys/ioctl.h>
 
 #include <linux/usrp_e.h>
-#include "usrp_e_regs.hpp"
+#include "usrp_e100_regs.hpp"
 
 // Usage: usrp_e_gpio <string>
 
@@ -42,6 +42,7 @@ int main(int argc, char *argv[])
 	test = 0;
 	if (argc < 2) {
 		printf("%s 0|1|off\n", argv[0]);
+		return -1;
 	}
 
         fp = open("/dev/usrp_e0", O_RDWR);
diff --git a/host/utils/usrp_e_regs.hpp b/host/utils/usrp_e_regs.hpp
deleted file mode 100644
index a4f42093e..000000000
--- a/host/utils/usrp_e_regs.hpp
+++ /dev/null
@@ -1,196 +0,0 @@
-
-
-////////////////////////////////////////////////////////////////
-//
-//         Memory map for embedded wishbone bus
-//
-////////////////////////////////////////////////////////////////
-
-// All addresses are byte addresses.  All accesses are word (16-bit) accesses.
-//  This means that address bit 0 is usually 0.
-//  There are 11 bits of address for the control.
-
-#ifndef __USRP_E_REGS_H
-#define __USRP_E_REGS_H
-
-/////////////////////////////////////////////////////
-// Slave pointers
-
-#define UE_REG_SLAVE(n) ((n)<<7)
-#define UE_REG_SR_ADDR(n) ((UE_REG_SLAVE(5)) + (4*(n)))
-
-/////////////////////////////////////////////////////
-// Slave 0 -- Misc Regs
-
-#define UE_REG_MISC_BASE UE_REG_SLAVE(0)
-
-#define UE_REG_MISC_LED        UE_REG_MISC_BASE + 0
-#define UE_REG_MISC_SW         UE_REG_MISC_BASE + 2
-#define UE_REG_MISC_CGEN_CTRL  UE_REG_MISC_BASE + 4
-#define UE_REG_MISC_CGEN_ST    UE_REG_MISC_BASE + 6
-#define UE_REG_MISC_TEST       UE_REG_MISC_BASE + 8
-#define UE_REG_MISC_RX_LEN     UE_REG_MISC_BASE + 10
-#define UE_REG_MISC_TX_LEN     UE_REG_MISC_BASE + 12
-
-/////////////////////////////////////////////////////
-// Slave 1 -- UART
-//   CLKDIV is 16 bits, others are only 8
-
-#define UE_REG_UART_BASE UE_REG_SLAVE(1)
-
-#define UE_REG_UART_CLKDIV  UE_REG_UART_BASE + 0
-#define UE_REG_UART_TXLEVEL UE_REG_UART_BASE + 2
-#define UE_REG_UART_RXLEVEL UE_REG_UART_BASE + 4
-#define UE_REG_UART_TXCHAR  UE_REG_UART_BASE + 6
-#define UE_REG_UART_RXCHAR  UE_REG_UART_BASE + 8
-
-/////////////////////////////////////////////////////
-// Slave 2 -- SPI Core
-//   This should be accessed through the IOCTL
-//   Users should not touch directly
-
-#define UE_REG_SPI_BASE UE_REG_SLAVE(2)
-
-//spi slave constants
-#define UE_SPI_SS_AD9522    (1 << 3)
-#define UE_SPI_SS_AD9862    (1 << 2)
-#define UE_SPI_SS_TX_DB     (1 << 1)
-#define UE_SPI_SS_RX_DB     (1 << 0)
-
-////////////////////////////////////////////////
-// Slave 3 -- I2C Core
-//   This should be accessed through the IOCTL
-//   Users should not touch directly
-
-#define UE_REG_I2C_BASE UE_REG_SLAVE(3)
-
-
-////////////////////////////////////////////////
-// Slave 4 -- GPIO
-
-#define UE_REG_GPIO_BASE UE_REG_SLAVE(4)
-
-#define UE_REG_GPIO_RX_IO      UE_REG_GPIO_BASE + 0
-#define UE_REG_GPIO_TX_IO      UE_REG_GPIO_BASE + 2
-#define UE_REG_GPIO_RX_DDR     UE_REG_GPIO_BASE + 4
-#define UE_REG_GPIO_TX_DDR     UE_REG_GPIO_BASE + 6
-#define UE_REG_GPIO_RX_SEL     UE_REG_GPIO_BASE + 8
-#define UE_REG_GPIO_TX_SEL     UE_REG_GPIO_BASE + 10
-#define UE_REG_GPIO_RX_DBG     UE_REG_GPIO_BASE + 12
-#define UE_REG_GPIO_TX_DBG     UE_REG_GPIO_BASE + 14
-
-//possible bit values for sel when dbg is 0:
-#define GPIO_SEL_SW    0 // if pin is an output, set by software in the io reg
-#define GPIO_SEL_ATR   1 // if pin is an output, set by ATR logic
-
-//possible bit values for sel when dbg is 1:
-#define GPIO_SEL_DEBUG_0   0 // if pin is an output, debug lines from FPGA fabric
-#define GPIO_SEL_DEBUG_1   1 // if pin is an output, debug lines from FPGA fabric
-
-
-////////////////////////////////////////////////////
-// Slave 5 -- Settings Bus
-//
-// Output-only, no readback, 32 registers total
-//  Each register must be written 32 bits at a time
-//  First the address xxx_xx00 and then xxx_xx10
-
-#define UE_REG_SETTINGS_BASE UE_REG_SLAVE(5)
-
-///////////////////////////////////////////////////
-// Slave 6 -- ATR Controller
-//   16 regs
-
-#define UE_REG_ATR_BASE  UE_REG_SLAVE(6)
-
-#define	UE_REG_ATR_IDLE_RXSIDE  UE_REG_ATR_BASE + 0
-#define	UE_REG_ATR_IDLE_TXSIDE  UE_REG_ATR_BASE + 2
-#define UE_REG_ATR_INTX_RXSIDE  UE_REG_ATR_BASE + 4
-#define UE_REG_ATR_INTX_TXSIDE  UE_REG_ATR_BASE + 6
-#define	UE_REG_ATR_INRX_RXSIDE  UE_REG_ATR_BASE + 8
-#define	UE_REG_ATR_INRX_TXSIDE  UE_REG_ATR_BASE + 10
-#define	UE_REG_ATR_FULL_RXSIDE  UE_REG_ATR_BASE + 12
-#define	UE_REG_ATR_FULL_TXSIDE  UE_REG_ATR_BASE + 14
-
-/////////////////////////////////////////////////
-// DSP RX Regs
-////////////////////////////////////////////////
-#define UE_REG_DSP_RX_FREQ         UE_REG_SR_ADDR(0)
-#define UE_REG_DSP_RX_SCALE_IQ     UE_REG_SR_ADDR(1)  // {scale_i,scale_q}
-#define UE_REG_DSP_RX_DECIM_RATE   UE_REG_SR_ADDR(2)  // hb and decim rate
-#define UE_REG_DSP_RX_DCOFFSET_I   UE_REG_SR_ADDR(3) // Bit 31 high sets fixed offset mode, using lower 14 bits, // otherwise it is automatic
-#define UE_REG_DSP_RX_DCOFFSET_Q   UE_REG_SR_ADDR(4) // Bit 31 high sets fixed offset mode, using lower 14 bits
-#define UE_REG_DSP_RX_MUX          UE_REG_SR_ADDR(5)
-
-///////////////////////////////////////////////////
-// VITA RX CTRL regs
-///////////////////////////////////////////////////
-// The following 3 are logically a single command register.
-// They are clocked into the underlying fifo when time_ticks is written.
-#define UE_REG_CTRL_RX_STREAM_CMD        UE_REG_SR_ADDR(8) // {now, chain, num_samples(30)
-#define UE_REG_CTRL_RX_TIME_SECS         UE_REG_SR_ADDR(9)
-#define UE_REG_CTRL_RX_TIME_TICKS        UE_REG_SR_ADDR(10)
-#define UE_REG_CTRL_RX_CLEAR_OVERRUN     UE_REG_SR_ADDR(11) // write anything to clear overrun
-#define UE_REG_CTRL_RX_VRT_HEADER        UE_REG_SR_ADDR(12) // word 0 of packet.  FPGA fills in packet counter
-#define UE_REG_CTRL_RX_VRT_STREAM_ID     UE_REG_SR_ADDR(13) // word 1 of packet.
-#define UE_REG_CTRL_RX_VRT_TRAILER       UE_REG_SR_ADDR(14)
-#define UE_REG_CTRL_RX_NSAMPS_PER_PKT    UE_REG_SR_ADDR(15)
-#define UE_REG_CTRL_RX_NCHANNELS         UE_REG_SR_ADDR(16) // 1 in basic case, up to 4 for vector sources
-
-/////////////////////////////////////////////////
-// DSP TX Regs
-////////////////////////////////////////////////
-#define UE_REG_DSP_TX_FREQ         UE_REG_SR_ADDR(17)
-#define UE_REG_DSP_TX_SCALE_IQ     UE_REG_SR_ADDR(18) // {scale_i,scale_q}
-#define UE_REG_DSP_TX_INTERP_RATE  UE_REG_SR_ADDR(19)
-#define UE_REG_DSP_TX_UNUSED       UE_REG_SR_ADDR(20)
-#define UE_REG_DSP_TX_MUX          UE_REG_SR_ADDR(21)
-
-/////////////////////////////////////////////////
-// VITA TX CTRL regs
-////////////////////////////////////////////////
-#define UE_REG_CTRL_TX_NCHANNELS         UE_REG_SR_ADDR(24)
-#define UE_REG_CTRL_TX_CLEAR_UNDERRUN    UE_REG_SR_ADDR(25)
-#define UE_REG_CTRL_TX_REPORT_SID        UE_REG_SR_ADDR(26)
-#define UE_REG_CTRL_TX_POLICY            UE_REG_SR_ADDR(27)
-
-#define UE_FLAG_CTRL_TX_POLICY_WAIT          (0x1 << 0)
-#define UE_FLAG_CTRL_TX_POLICY_NEXT_PACKET   (0x1 << 1)
-#define UE_FLAG_CTRL_TX_POLICY_NEXT_BURST    (0x1 << 2)
-
-/////////////////////////////////////////////////
-// VITA49 64 bit time (write only)
-////////////////////////////////////////////////
-  /*!
-   * \brief Time 64 flags
-   *
-   * <pre>
-   *
-   *    3                   2                   1
-   *  1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
-   * +-----------------------------------------------------------+-+-+
-   * |                                                           |S|P|
-   * +-----------------------------------------------------------+-+-+
-   *
-   * P - PPS edge selection (0=negedge, 1=posedge, default=0)
-   * S - Source (0=sma, 1=mimo, 0=default)
-   *
-   * </pre>
-   */
-#define UE_REG_TIME64_SECS  UE_REG_SR_ADDR(28)  // value to set absolute secs to on next PPS
-#define UE_REG_TIME64_TICKS UE_REG_SR_ADDR(29)  // value to set absolute ticks to on next PPS
-#define UE_REG_TIME64_FLAGS UE_REG_SR_ADDR(30)  // flags - see chart above
-#define UE_REG_TIME64_IMM   UE_REG_SR_ADDR(31)  // set immediate (0=latch on next pps, 1=latch immediate, default=0)
-#define UE_REG_TIME64_TPS   UE_REG_SR_ADDR(31)  // clock ticks per second (counter rollover)
-
-//pps flags (see above)
-#define UE_FLAG_TIME64_PPS_NEGEDGE (0 << 0)
-#define UE_FLAG_TIME64_PPS_POSEDGE (1 << 0)
-#define UE_FLAG_TIME64_PPS_SMA     (0 << 1)
-#define UE_FLAG_TIME64_PPS_MIMO    (1 << 1)
-
-#define UE_FLAG_TIME64_LATCH_NOW 1
-#define UE_FLAG_TIME64_LATCH_NEXT_PPS 0
-
-#endif
-
diff --git a/images/CMakeLists.txt b/images/CMakeLists.txt
index ee8146f3a..705153baf 100644
--- a/images/CMakeLists.txt
+++ b/images/CMakeLists.txt
@@ -32,6 +32,7 @@ SET(CPACK_PACKAGE_CONTACT             "support@ettus.com")
 SET(CPACK_PACKAGE_VERSION_MAJOR ${UHD_VERSION_MAJOR})
 SET(CPACK_PACKAGE_VERSION_MINOR ${UHD_VERSION_MINOR})
 SET(CPACK_PACKAGE_VERSION_PATCH ${UHD_VERSION_PATCH})
+SET(CPACK_DEBIAN_PACKAGE_ARCHITECTURE "all")
 INCLUDE(CPack) #include after setting vars
 MESSAGE(STATUS "Version: ${CPACK_PACKAGE_VERSION}")
 
diff --git a/images/Makefile b/images/Makefile
index 27390427d..34c18cdc2 100644
--- a/images/Makefile
+++ b/images/Makefile
@@ -30,6 +30,12 @@ CMAKE_BUILD_DIR = $(TOP_DIR)/build
 ##filled in below
 IMAGES_LIST =
 
+##little rule to make the images directory
+$(BUILT_IMAGES_DIR):
+	mkdir $@
+
+GLOBAL_DEPS = $(BUILT_IMAGES_DIR)
+
 ########################################################################
 # Utility Checks
 ########################################################################
@@ -37,8 +43,8 @@ ifeq ($(shell sdcc --help > /dev/null 2>&1 && echo $$?),0)
 	HAS_SDCC=1
 endif
 
-ifeq ($(shell mb-gcc --help > /dev/null 2>&1 && echo $$?),0)
-	HAS_MB_GCC=1
+ifeq ($(shell zpu-elf-gcc --help > /dev/null 2>&1 && echo $$?),0)
+	HAS_ZPU_GCC=1
 endif
 
 ifeq ($(shell xtclsh -h > /dev/null 2>&1 && echo $$?),0)
@@ -54,7 +60,7 @@ _usrp1_fw_dir = $(TOP_FW_DIR)/fx2
 _usrp1_fw_ihx = $(BUILT_IMAGES_DIR)/usrp1_fw.ihx
 IMAGES_LIST += $(_usrp1_fw_ihx)
 
-$(_usrp1_fw_ihx):
+$(_usrp1_fw_ihx): $(GLOBAL_DEPS)
 	cd $(_usrp1_fw_dir) && rm -rf build
 	cd $(_usrp1_fw_dir) && mkdir build
 	cd $(_usrp1_fw_dir)/build && cmake ../
@@ -71,29 +77,29 @@ _usrp1_fpga_rbf = $(BUILT_IMAGES_DIR)/usrp1_fpga.rbf
 _usrp1_fpga_4rx_rbf = $(BUILT_IMAGES_DIR)/usrp1_fpga_4rx.rbf
 IMAGES_LIST += $(_usrp1_fpga_rbf) $(_usrp1_fpga_4rx_rbf)
 
-$(_usrp1_fpga_rbf):
+$(_usrp1_fpga_rbf): $(GLOBAL_DEPS)
 	cp $(_usrp1_fpga_dir)/std_2rxhb_2tx.rbf $@
 
-$(_usrp1_fpga_4rx_rbf):
+$(_usrp1_fpga_4rx_rbf): $(GLOBAL_DEPS)
 	cp $(_usrp1_fpga_dir)/std_4rx_0tx.rbf $@
 
 ########################################################################
-# USRP2 and USRP-N2XX firmware
+# USRP2 and N Series firmware
 ########################################################################
-ifdef HAS_MB_GCC
+ifdef HAS_ZPU_GCC
 
-_usrp2_fw_dir = $(TOP_FW_DIR)/microblaze
+_usrp2_fw_dir = $(TOP_FW_DIR)/zpu
 _usrp2_fw_bin = $(BUILT_IMAGES_DIR)/usrp2_fw.bin
 _usrp_n2xx_fw_bin = $(BUILT_IMAGES_DIR)/usrp_n2xx_fw.bin
 IMAGES_LIST += $(_usrp2_fw_bin)
 
-$(_usrp2_fw_bin) $(_usrp_n2xx_fw_bin):
-	cd $(_usrp2_fw_dir) && ./bootstrap
-	cd $(_usrp2_fw_dir) && ./configure --host=mb
-	make -C $(_usrp2_fw_dir) clean
-	make -C $(_usrp2_fw_dir) all
-	cp $(_usrp2_fw_dir)/usrp2/usrp2_txrx_uhd.bin $(_usrp2_fw_bin)
-	cp $(_usrp2_fw_dir)/usrp2p/usrp2p_txrx_uhd.bin $(_usrp_n2xx_fw_bin)
+$(_usrp2_fw_bin) $(_usrp_n2xx_fw_bin): $(GLOBAL_DEPS)
+	cd $(_usrp2_fw_dir) && rm -rf build
+	cd $(_usrp2_fw_dir) && mkdir build
+	cd $(_usrp2_fw_dir)/build && cmake ../
+	cd $(_usrp2_fw_dir)/build && make
+	cp $(_usrp2_fw_dir)/build/usrp2/usrp2_txrx_uhd.bin $(_usrp2_fw_bin)
+	cp $(_usrp2_fw_dir)/build/usrp2p/usrp2p_txrx_uhd.bin $(_usrp_n2xx_fw_bin)
 
 endif
 
@@ -106,7 +112,7 @@ _usrp2_fpga_dir = $(TOP_FPGA_DIR)/usrp2/top/u2_rev3
 _usrp2_fpga_bin = $(BUILT_IMAGES_DIR)/usrp2_fpga.bin
 IMAGES_LIST += $(_usrp2_fpga_bin)
 
-$(_usrp2_fpga_bin):
+$(_usrp2_fpga_bin): $(GLOBAL_DEPS)
 	cd $(_usrp2_fpga_dir) && make clean
 	cd $(_usrp2_fpga_dir) && make bin
 	cp $(_usrp2_fpga_dir)/build/u2_rev3.bin $@
@@ -122,7 +128,7 @@ _usrp_n210_fpga_dir = $(TOP_FPGA_DIR)/usrp2/top/u2plus
 _usrp_n210_fpga_bin = $(BUILT_IMAGES_DIR)/usrp_n210_fpga.bin
 IMAGES_LIST += $(_usrp_n210_fpga_bin)
 
-$(_usrp_n210_fpga_bin):
+$(_usrp_n210_fpga_bin): $(GLOBAL_DEPS)
 	cd $(_usrp_n210_fpga_dir) && make clean
 	cd $(_usrp_n210_fpga_dir) && make bin
 	cp $(_usrp_n210_fpga_dir)/build/u2plus.bin $@
@@ -138,7 +144,7 @@ _usrp_e100_fpga_dir = $(TOP_FPGA_DIR)/usrp2/top/u1e
 _usrp_e100_fpga_bin = $(BUILT_IMAGES_DIR)/usrp_e100_fpga.bin
 IMAGES_LIST += $(_usrp_e100_fpga_bin)
 
-$(_usrp_e100_fpga_bin):
+$(_usrp_e100_fpga_bin): $(GLOBAL_DEPS)
 	cd $(_usrp_e100_fpga_dir) && make clean
 	cd $(_usrp_e100_fpga_dir) && make bin
 	cp $(_usrp_e100_fpga_dir)/build/u1e.bin $@
@@ -148,11 +154,7 @@ endif
 ########################################################################
 # Build rules
 ########################################################################
-##little rule to make the images directory
-$(BUILT_IMAGES_DIR):
-	mkdir $@
-
-images: $(BUILT_IMAGES_DIR) $(IMAGES_LIST)
+images: $(IMAGES_LIST)
 	chmod -x $(BUILT_IMAGES_DIR)/*
 
 clean: