Merge branch 'next'

67 files changed, 1227 insertions, 4367 deletions

diff --git a/fpga/usrp2/top/u1e_passthru/.gitignore b/fpga/usrp2/top/B100/.gitignore
index 1b2211df0..1b2211df0 100644
--- a/fpga/usrp2/top/u1e_passthru/.gitignore
+++ b/fpga/usrp2/top/B100/.gitignore
diff --git a/fpga/usrp2/top/B100/Makefile b/fpga/usrp2/top/B100/Makefile
new file mode 100644
index 000000000..ca6ec9320
--- /dev/null
+++ b/fpga/usrp2/top/B100/Makefile
@@ -0,0 +1,97 @@
+#
+# Copyright 2008 Ettus Research LLC
+#
+
+##################################################
+# Project Setup
+##################################################
+BUILD_DIR := build/
+export TOP_MODULE := u1plus
+export PROJ_FILE := $(BUILD_DIR)$(TOP_MODULE).ise
+
+include ../Makefile.common
+include ../../fifo/Makefile.srcs
+include ../../control_lib/Makefile.srcs
+include ../../sdr_lib/Makefile.srcs
+include ../../serdes/Makefile.srcs
+include ../../simple_gemac/Makefile.srcs
+include ../../timing/Makefile.srcs
+include ../../opencores/Makefile.srcs
+include ../../vrt/Makefile.srcs
+include ../../udp/Makefile.srcs
+include ../../coregen/Makefile.srcs
+include ../../gpif/Makefile.srcs
+
+##################################################
+# Project Properties
+##################################################
+export PROJECT_PROPERTIES := \
+family "Spartan3A" \
+device XC3S1400A \
+package ft256 \
+speed -4 \
+top_level_module_type "HDL" \
+synthesis_tool "XST (VHDL/Verilog)" \
+simulator "ISE Simulator (VHDL/Verilog)" \
+"Preferred Language" "Verilog" \
+"Enable Message Filtering" FALSE \
+"Display Incremental Messages" FALSE 
+
+##################################################
+# Sources
+##################################################
+TOP_SRCS = \
+u1plus.v \
+u1plus_core.v \
+u1plus.ucf \
+timing.ucf
+
+SOURCES = $(abspath $(TOP_SRCS)) $(FIFO_SRCS) \
+$(CONTROL_LIB_SRCS) $(SDR_LIB_SRCS) $(SERDES_SRCS) \
+$(SIMPLE_GEMAC_SRCS) $(TIMING_SRCS) $(OPENCORES_SRCS) \
+$(VRT_SRCS) $(UDP_SRCS) $(COREGEN_SRCS) $(EXTRAM_SRCS) \
+$(GPIF_SRCS)
+
+##################################################
+# Process Properties
+##################################################
+SYNTHESIZE_PROPERTIES = \
+"Number of Clock Buffers" 8 \
+"Pack I/O Registers into IOBs" Yes \
+"Optimization Effort" High \
+"Optimize Instantiated Primitives" TRUE \
+"Register Balancing" Yes \
+"Use Clock Enable" Auto \
+"Use Synchronous Reset" Auto \
+"Use Synchronous Set" Auto
+
+TRANSLATE_PROPERTIES = \
+"Macro Search Path" "$(shell pwd)/../../coregen/"
+
+MAP_PROPERTIES = \
+"Allow Logic Optimization Across Hierarchy" TRUE \
+"Map to Input Functions" 4 \
+"Optimization Strategy (Cover Mode)" Speed \
+"Pack I/O Registers/Latches into IOBs" "For Inputs and Outputs" \
+"Perform Timing-Driven Packing and Placement" TRUE \
+"Map Effort Level" High \
+"Extra Effort" Normal \
+"Combinatorial Logic Optimization" TRUE \
+"Register Duplication" TRUE
+
+PLACE_ROUTE_PROPERTIES = \
+"Place & Route Effort Level (Overall)" High 
+
+STATIC_TIMING_PROPERTIES = \
+"Number of Paths in Error/Verbose Report" 10 \
+"Report Type" "Error Report"
+
+GEN_PROG_FILE_PROPERTIES = \
+"Configuration Rate" 6 \
+"Create Binary Configuration File" TRUE \
+"Done (Output Events)" 5 \
+"Enable Bitstream Compression" TRUE \
+"Enable Outputs (Output Events)" 6 \
+"Unused IOB Pins" "Pull Up"
+
+SIM_MODEL_PROPERTIES = ""
diff --git a/fpga/usrp2/top/B100/core_compile b/fpga/usrp2/top/B100/core_compile
new file mode 100755
index 000000000..b2ccc8b49
--- /dev/null
+++ b/fpga/usrp2/top/B100/core_compile
@@ -0,0 +1 @@
+iverilog -Wall -y. -y ../../control_lib/ -y ../../fifo/ -y ../../gpif/ -y ../../models/ -y ../../sdr_lib/ -y ../../coregen/ -y ../../vrt/ -y ../../opencores/i2c/rtl/verilog/ -y ../../opencores/spi/rtl/verilog/ -y ../../timing/ -y ../../opencores/8b10b/ -I ../../opencores/spi/rtl/verilog/ -I ../../opencores/i2c/rtl/verilog/ -y ../../simple_gemac u1plus_core.v  2>&1   | grep -v timescale | grep -v coregen | grep -v models
diff --git a/fpga/usrp2/top/B100/timing.ucf b/fpga/usrp2/top/B100/timing.ucf
new file mode 100644
index 000000000..b2a455f6d
--- /dev/null
+++ b/fpga/usrp2/top/B100/timing.ucf
@@ -0,0 +1,5 @@
+NET "CLK_FPGA_P" TNM_NET = "CLK_FPGA_P";
+TIMESPEC "TS_CLK_FPGA_P" = PERIOD "CLK_FPGA_P" 15625 ps HIGH 50 %;
+
+NET "IFCLK" TNM_NET = "IFCLK";
+TIMESPEC "TS_IFCLK" = PERIOD "IFCLK" 20833 ps HIGH 50 %;
diff --git a/fpga/usrp2/top/B100/u1plus.ucf b/fpga/usrp2/top/B100/u1plus.ucf
new file mode 100644
index 000000000..cd89878e3
--- /dev/null
+++ b/fpga/usrp2/top/B100/u1plus.ucf
@@ -0,0 +1,203 @@
+## Main Clock
+NET "CLK_FPGA_P"  LOC = "R7"  ;
+NET "CLK_FPGA_N"  LOC = "T7"  ;
+
+## UART
+NET "FPGA_TXD"  LOC = "H16"  ;
+NET "FPGA_RXD"  LOC = "H12"  ;
+
+## I2C
+NET "SDA_FPGA"  LOC = "T13"  ;
+NET "SCL_FPGA"  LOC = "R13"  ;
+
+## CGEN
+NET "cgen_st_ld"  LOC = "M13"  ;
+NET "cgen_st_refmon"  LOC = "J14"  ;
+NET "cgen_st_status"  LOC = "P6"  ;
+NET "cgen_ref_sel"  LOC = "T2"  ;
+NET "cgen_sync_b"  LOC = "H15"  ;
+
+## FPGA Config
+#NET "fpga_cfg_din"  LOC = "T14"  ;
+#NET "fpga_cfg_cclk"  LOC = "R14"  ;
+#NET "fpga_cfg_init_b"  LOC = "T12"  ;
+
+## MISC
+#NET "mystery_bus<2>"  LOC = "T11"  ;
+#NET "mystery_bus<1>"  LOC = "C4"  ;
+#NET "mystery_bus<0>"  LOC = "E7"  ;
+NET "reset_n"  LOC = "D5"  ;
+NET "PPS_IN"  LOC = "M14"  ;
+NET "reset_codec"  LOC = "B14"  ;
+
+## GPIF
+NET "GPIF_D<15>"  LOC = "P7"  ;
+NET "GPIF_D<14>"  LOC = "N8"  ;
+NET "GPIF_D<13>"  LOC = "T5"  ;
+NET "GPIF_D<12>"  LOC = "T6"  ;
+NET "GPIF_D<11>"  LOC = "N6"  ;
+NET "GPIF_D<10>"  LOC = "P5"  ;
+NET "GPIF_D<9>"  LOC = "R3"  ;
+NET "GPIF_D<8>"  LOC = "T3"  ;
+NET "GPIF_D<7>"  LOC = "N12"  ;
+NET "GPIF_D<6>"  LOC = "P13"  ;
+NET "GPIF_D<5>"  LOC = "P11"  ;
+NET "GPIF_D<4>"  LOC = "R9"  ;
+NET "GPIF_D<3>"  LOC = "T9"  ;
+NET "GPIF_D<2>"  LOC = "N9"  ;
+NET "GPIF_D<1>"  LOC = "P9"  ;
+NET "GPIF_D<0>"  LOC = "P8"  ;
+
+NET "GPIF_CTL<3>"  LOC = "N5"  ;
+NET "GPIF_CTL<2>"  LOC = "M11"  ;
+NET "GPIF_CTL<1>"  LOC = "M9"  ;
+NET "GPIF_CTL<0>"  LOC = "M7"  ;
+
+NET "GPIF_RDY<3>"  LOC = "N11"  ;
+NET "GPIF_RDY<2>"  LOC = "T10"  ;
+NET "GPIF_RDY<1>"  LOC = "T4"  ;
+NET "GPIF_RDY<0>"  LOC = "R5"  ;
+
+NET "FX2_PA7_FLAGD"  LOC = "P12"  ;
+NET "FX2_PA6_PKTEND"  LOC = "R11"  ;
+NET "FX2_PA2_SLOE"  LOC = "P10"  ;
+
+NET "IFCLK"  LOC = "T8"  ;
+
+## LEDs
+NET "debug_led<2>"  LOC = "R2"  ;
+NET "debug_led<1>"  LOC = "N4"  ;
+NET "debug_led<0>"  LOC = "P4"  ;
+
+## Debug bus
+NET "debug_clk<0>"  LOC = "K15"  ;
+NET "debug_clk<1>"  LOC = "K14"  ;
+NET "debug<0>"  LOC = "K16"  ;
+NET "debug<1>"  LOC = "J16"  ;
+NET "debug<2>"  LOC = "C16"  ;
+NET "debug<3>"  LOC = "C15"  ;
+NET "debug<4>"  LOC = "E13"  ;
+NET "debug<5>"  LOC = "D14"  ;
+NET "debug<6>"  LOC = "D16"  ;
+NET "debug<7>"  LOC = "D15"  ;
+NET "debug<8>"  LOC = "E14"  ;
+NET "debug<9>"  LOC = "F13"  ;
+NET "debug<10>"  LOC = "G13"  ;
+NET "debug<11>"  LOC = "F14"  ;
+NET "debug<12>"  LOC = "E16"  ;
+NET "debug<13>"  LOC = "F15"  ;
+NET "debug<14>"  LOC = "H13"  ;
+NET "debug<15>"  LOC = "G14"  ;
+NET "debug<16>"  LOC = "G16"  ;
+NET "debug<17>"  LOC = "F16"  ;
+NET "debug<18>"  LOC = "J12"  ;
+NET "debug<19>"  LOC = "J13"  ;
+NET "debug<20>"  LOC = "L14"  ;
+NET "debug<21>"  LOC = "L16"  ;
+NET "debug<22>"  LOC = "M15"  ;
+NET "debug<23>"  LOC = "M16"  ;
+NET "debug<24>"  LOC = "L13"  ;
+NET "debug<25>"  LOC = "K13"  ;
+NET "debug<26>"  LOC = "P16"  ;
+NET "debug<27>"  LOC = "N16"  ;
+NET "debug<28>"  LOC = "R15"  ;
+NET "debug<29>"  LOC = "P15"  ;
+NET "debug<30>"  LOC = "N13"  ;
+NET "debug<31>"  LOC = "N14"  ;
+
+## ADC
+NET "adc<11>"  LOC = "B15"  ;
+NET "adc<10>"  LOC = "A8"  ;
+NET "adc<9>"  LOC = "B8"  ;
+NET "adc<8>"  LOC = "C8"  ;
+NET "adc<7>"  LOC = "D8"  ;
+NET "adc<6>"  LOC = "C9"  ;
+NET "adc<5>"  LOC = "A9"  ;
+NET "adc<4>"  LOC = "C10"  ;
+NET "adc<3>"  LOC = "D9"  ;
+NET "adc<2>"  LOC = "A3"  ;
+NET "adc<1>"  LOC = "B3"  ;
+NET "adc<0>"  LOC = "A4"  ;
+NET "RXSYNC"  LOC = "D10"  ;
+
+## DAC
+NET "TXBLANK"  LOC = "K1"  ;
+NET "TXSYNC"  LOC = "J2"  ;
+NET "dac<0>"  LOC = "J1"  ;
+NET "dac<1>"  LOC = "H3"  ;
+NET "dac<2>"  LOC = "J3"  ;
+NET "dac<3>"  LOC = "G2"  ;
+NET "dac<4>"  LOC = "H1"  ;
+NET "dac<5>"  LOC = "N3"  ;
+NET "dac<6>"  LOC = "M4"  ;
+NET "dac<7>"  LOC = "R1"  ;
+NET "dac<8>"  LOC = "P2"  ;
+NET "dac<9>"  LOC = "P1"  ;
+NET "dac<10>"  LOC = "M1"  ;
+NET "dac<11>"  LOC = "N1"  ;
+NET "dac<12>"  LOC = "M3"  ;
+NET "dac<13>"  LOC = "L4"  ;
+
+## TX DB
+NET "io_tx<0>"  LOC = "K4"  ;
+NET "io_tx<1>"  LOC = "L3"  ;
+NET "io_tx<2>"  LOC = "L2"  ;
+NET "io_tx<3>"  LOC = "F1"  ;
+NET "io_tx<4>"  LOC = "F3"  ;
+NET "io_tx<5>"  LOC = "G3"  ;
+NET "io_tx<6>"  LOC = "E3"  ;
+NET "io_tx<7>"  LOC = "E2"  ;
+NET "io_tx<8>"  LOC = "E4"  ;
+NET "io_tx<9>"  LOC = "F4"  ;
+NET "io_tx<10>"  LOC = "D1"  ;
+NET "io_tx<11>"  LOC = "E1"  ;
+NET "io_tx<12>"  LOC = "D4"  ;
+NET "io_tx<13>"  LOC = "D3"  ;
+NET "io_tx<14>"  LOC = "C2"  ;
+NET "io_tx<15>"  LOC = "C1"  ;
+
+## RX DB
+NET "io_rx<0>"  LOC = "D7"  ;
+NET "io_rx<1>"  LOC = "C6"  ;
+NET "io_rx<2>"  LOC = "A6"  ;
+NET "io_rx<3>"  LOC = "B6"  ;
+NET "io_rx<4>"  LOC = "E9"  ;
+NET "io_rx<5>"  LOC = "A7"  ;
+NET "io_rx<6>"  LOC = "C7"  ;
+NET "io_rx<7>"  LOC = "B10"  ;
+NET "io_rx<8>"  LOC = "A10"  ;
+NET "io_rx<9>"  LOC = "C11"  ;
+NET "io_rx<10>"  LOC = "A11"  ;
+NET "io_rx<11>"  LOC = "D11"  ;
+NET "io_rx<12>"  LOC = "B12"  ;
+NET "io_rx<13>"  LOC = "A12"  ;
+NET "io_rx<14>"  LOC = "A14"  ;
+NET "io_rx<15>"  LOC = "A13"  ;
+
+## SPI
+#NET "SEN_AUX"  LOC = "C12"  ;
+#NET "SCLK_AUX"  LOC = "D12"  ;
+#NET "MISO_AUX"  LOC = "J5"  ;
+NET "SCLK_CODEC"  LOC = "K3"  ;
+NET "SEN_CODEC"  LOC = "D13"  ;
+NET "MOSI_CODEC"  LOC = "C13"  ;
+NET "MISO_CODEC"  LOC = "G4"  ;
+
+NET "MISO_RX_DB"  LOC = "E6"  ;
+NET "SEN_RX_DB"  LOC = "B4"  ;
+NET "MOSI_RX_DB"  LOC = "A5"  ;
+NET "SCLK_RX_DB"  LOC = "C5"  ;
+
+NET "MISO_TX_DB"  LOC = "J4"  ;
+NET "SEN_TX_DB"  LOC = "N2"  ;
+NET "MOSI_TX_DB"  LOC = "L1"  ;
+NET "SCLK_TX_DB"  LOC = "G1"  ;
+
+## Dedicated pins
+#NET "TMS"  LOC = "B2"  ;
+#NET "TDO"  LOC = "B16"  ;
+#NET "TDI"  LOC = "B1"  ;
+#NET "TCK"  LOC = "A15"  ;
+
+##NET "fpga_cfg_prog_b"  LOC = "A2"  ;
+##NET "fpga_cfg_done"  LOC = "T15"  ;
diff --git a/fpga/usrp2/top/B100/u1plus.v b/fpga/usrp2/top/B100/u1plus.v
new file mode 100644
index 000000000..5e3200580
--- /dev/null
+++ b/fpga/usrp2/top/B100/u1plus.v
@@ -0,0 +1,173 @@
+//
+// 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/>.
+//
+
+`timescale 1ns / 1ps
+//////////////////////////////////////////////////////////////////////////////////
+
+module u1plus
+  (input CLK_FPGA_P, input CLK_FPGA_N,  // Diff
+   output [2:0] debug_led, output [31:0] debug, output [1:0] debug_clk,
+   output FPGA_TXD, input FPGA_RXD,
+
+   // GPIF
+   inout [15:0] GPIF_D, input [3:0] GPIF_CTL, output [3:0] GPIF_RDY,
+   output FX2_PA7_FLAGD, output FX2_PA6_PKTEND, output FX2_PA2_SLOE,
+   input IFCLK,
+   
+   inout SDA_FPGA, inout SCL_FPGA, // I2C
+
+   output SCLK_TX_DB, output SEN_TX_DB, output MOSI_TX_DB, input MISO_TX_DB,   // DB TX SPI
+   output SCLK_RX_DB, output SEN_RX_DB, output MOSI_RX_DB, input MISO_RX_DB,   // DB TX SPI
+   output SCLK_CODEC, output SEN_CODEC, output MOSI_CODEC, input MISO_CODEC,   // AD9862 main SPI
+
+   input cgen_st_status, input cgen_st_ld, input cgen_st_refmon, output cgen_sync_b, output cgen_ref_sel,
+   
+   inout [15:0] io_tx, inout [15:0] io_rx,
+
+   output [13:0] dac, output TXSYNC, output TXBLANK,
+   input [11:0] adc, input RXSYNC,
+  
+   input PPS_IN,
+   input reset_n, output reset_codec
+   );
+
+   assign reset_codec = 1;  // Believed to be active low
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // Clocking
+   wire  clk_fpga, clk_fpga_in, reset;
+   
+   IBUFGDS #(.IOSTANDARD("LVDS_33"), .DIFF_TERM("TRUE")) 
+   clk_fpga_pin (.O(clk_fpga_in),.I(CLK_FPGA_P),.IB(CLK_FPGA_N));
+
+   BUFG clk_fpga_BUFG (.I(clk_fpga_in), .O(clk_fpga));
+   
+   reset_sync reset_sync(.clk(clk_fpga), .reset_in(~reset_n), .reset_out(reset));
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // SPI
+   wire  mosi, sclk, miso;
+   assign { SCLK_TX_DB, MOSI_TX_DB } = ~SEN_TX_DB ? {sclk,mosi} : 2'b0;
+   assign { SCLK_RX_DB, MOSI_RX_DB } = ~SEN_RX_DB ? {sclk,mosi} : 2'b0;
+   assign { SCLK_CODEC, MOSI_CODEC } = ~SEN_CODEC ? {sclk,mosi} : 2'b0;
+   assign miso = (~SEN_TX_DB & MISO_TX_DB) | (~SEN_RX_DB & MISO_RX_DB) |
+		 (~SEN_CODEC & MISO_CODEC);
+
+   // /////////////////////////////////////////////////////////////////////////
+   // TX DAC -- handle the interleaved data bus to DAC, with clock doubling DLL
+
+   assign TXBLANK = 0;
+   wire [13:0] tx_i, tx_q;
+
+   genvar i;
+   generate
+      for(i=0;i<14;i=i+1)
+	begin : gen_dacout
+	   ODDR2 #(.DDR_ALIGNMENT("NONE"), // Sets output alignment to "NONE", "C0" or "C1" 
+		   .INIT(1'b0),            // Sets initial state of the Q output to 1'b0 or 1'b1
+		   .SRTYPE("SYNC"))        // Specifies "SYNC" or "ASYNC" set/reset
+	   ODDR2_inst (.Q(dac[i]),      // 1-bit DDR output data
+		       .C0(clk_fpga),  // 1-bit clock input
+		       .C1(~clk_fpga), // 1-bit clock input
+		       .CE(1'b1),      // 1-bit clock enable input
+		       .D0(tx_i[i]),   // 1-bit data input (associated with C0)
+		       .D1(tx_q[i]),   // 1-bit data input (associated with C1)
+		       .R(1'b0),       // 1-bit reset input
+		       .S(1'b0));      // 1-bit set input
+	end // block: gen_dacout
+      endgenerate
+   ODDR2 #(.DDR_ALIGNMENT("NONE"), // Sets output alignment to "NONE", "C0" or "C1" 
+	   .INIT(1'b0),            // Sets initial state of the Q output to 1'b0 or 1'b1
+	   .SRTYPE("SYNC"))        // Specifies "SYNC" or "ASYNC" set/reset
+   ODDR2_txsnc (.Q(TXSYNC),      // 1-bit DDR output data
+		.C0(clk_fpga),  // 1-bit clock input
+		.C1(~clk_fpga), // 1-bit clock input
+		.CE(1'b1),      // 1-bit clock enable input
+		.D0(1'b0),   // 1-bit data input (associated with C0)
+		.D1(1'b1),   // 1-bit data input (associated with C1)
+		.R(1'b0),       // 1-bit reset input
+		.S(1'b0));      // 1-bit set input
+
+   // /////////////////////////////////////////////////////////////////////////
+   // RX ADC -- handles deinterleaving
+
+   reg [11:0] rx_i, rx_q;
+   wire [11:0] rx_a, rx_b;
+   
+   genvar      j;
+   generate
+      for(j=0;j<12;j=j+1)
+	begin : gen_adcin
+	   IDDR2 #(.DDR_ALIGNMENT("NONE"), // Sets output alignment to "NONE", "C0" or "C1"
+		   .INIT_Q0(1'b0),         // Sets initial state of the Q0 output to 1’b0 or 1’b1
+		   .INIT_Q1(1'b0),         // Sets initial state of the Q1 output to 1’b0 or 1’b1
+		   .SRTYPE("SYNC"))        // Specifies "SYNC" or "ASYNC" set/reset
+	   IDDR2_inst (.Q0(rx_a[j]),      // 1-bit output captured with C0 clock
+		       .Q1(rx_b[j]),      // 1-bit output captured with C1 clock
+		       .C0(clk_fpga),     // 1-bit clock input
+		       .C1(~clk_fpga),    // 1-bit clock input
+		       .CE(1'b1),         // 1-bit clock enable input
+		       .D(adc[j]),        // 1-bit DDR data input
+		       .R(1'b0),          // 1-bit reset input
+		       .S(1'b0));         // 1-bit set input
+	end // block: gen_adcin
+   endgenerate
+   
+   IDDR2 #(.DDR_ALIGNMENT("NONE"), // Sets output alignment to "NONE", "C0" or "C1"
+	   .INIT_Q0(1'b0),         // Sets initial state of the Q0 output to 1’b0 or 1’b1
+	   .INIT_Q1(1'b0),         // Sets initial state of the Q1 output to 1’b0 or 1’b1
+	   .SRTYPE("SYNC"))        // Specifies "SYNC" or "ASYNC" set/reset
+   IDDR2_sync (.Q0(rxsync_0),      // 1-bit output captured with C0 clock
+	       .Q1(rxsync_1),      // 1-bit output captured with C1 clock
+	       .C0(clk_fpga),     // 1-bit clock input
+	       .C1(~clk_fpga),    // 1-bit clock input
+	       .CE(1'b1),         // 1-bit clock enable input
+	       .D(RXSYNC),        // 1-bit DDR data input
+	       .R(1'b0),          // 1-bit reset input
+	       .S(1'b0));         // 1-bit set input
+
+   always @(posedge clk_fpga)
+     if(rxsync_0)
+       begin
+	  rx_i <= rx_b;
+	  rx_q <= rx_a;
+       end
+     else
+       begin
+	  rx_i <= rx_a;
+	  rx_q <= rx_b;
+       end
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // Main U1E Core
+   u1plus_core u1p_c(.clk_fpga(clk_fpga), .rst_fpga(reset),
+		     .debug_led(debug_led), .debug(debug), .debug_clk(debug_clk),
+		     .debug_txd(FPGA_TXD), .debug_rxd(FPGA_RXD),
+		     .gpif_d(GPIF_D), .gpif_ctl(GPIF_CTL), .gpif_rdy(GPIF_RDY),
+		     .gpif_misc({FX2_PA7_FLAGD,FX2_PA6_PKTEND,FX2_PA2_SLOE}),
+		     .gpif_clk(IFCLK),
+
+		     .db_sda(SDA_FPGA), .db_scl(SCL_FPGA),
+		     .sclk(sclk), .sen({SEN_CODEC,SEN_TX_DB,SEN_RX_DB}), .mosi(mosi), .miso(miso),
+		     .cgen_st_status(cgen_st_status), .cgen_st_ld(cgen_st_ld),.cgen_st_refmon(cgen_st_refmon), 
+		     .cgen_sync_b(cgen_sync_b), .cgen_ref_sel(cgen_ref_sel),
+		     .io_tx(io_tx), .io_rx(io_rx),
+		     .tx_i(tx_i), .tx_q(tx_q), 
+		     .rx_i(rx_i), .rx_q(rx_q),
+		     .pps_in(PPS_IN) );
+
+endmodule // u1plus
diff --git a/fpga/usrp2/top/B100/u1plus_core.v b/fpga/usrp2/top/B100/u1plus_core.v
new file mode 100644
index 000000000..8a02f0fb8
--- /dev/null
+++ b/fpga/usrp2/top/B100/u1plus_core.v
@@ -0,0 +1,409 @@
+//
+// 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/>.
+//
+
+
+
+module u1plus_core
+  (input clk_fpga, input rst_fpga,
+   output [2:0] debug_led, output [31:0] debug, output [1:0] debug_clk,
+   output debug_txd, input debug_rxd,
+   
+   // GPIF
+   inout [15:0] gpif_d, input [3:0] gpif_ctl, output [3:0] gpif_rdy,
+   output [2:0] gpif_misc, input gpif_clk,
+   
+   inout db_sda, inout db_scl,
+   output sclk, output [15:0] sen, output mosi, input miso,
+
+   input cgen_st_status, input cgen_st_ld, input cgen_st_refmon, output cgen_sync_b, output cgen_ref_sel,   
+   output tx_underrun, output rx_overrun,
+   inout [15:0] io_tx, inout [15:0] io_rx, 
+   output [13:0] tx_i, output [13:0] tx_q, 
+   input [11:0] rx_i, input [11:0] rx_q, 
+   input pps_in
+   );
+
+   localparam TXFIFOSIZE = 11;
+   localparam RXFIFOSIZE = 11;
+
+   // 64 total regs in address space
+   localparam SR_RX_CTRL = 0;     // 9 regs (+0 to +8)
+   localparam SR_RX_DSP = 16;     // 7 regs (+0 to +6)
+   localparam SR_TX_CTRL = 24;    // 6 regs (+0 to +5)
+   localparam SR_TX_DSP = 32;     // 5 regs (+0 to +4)
+   localparam SR_TIME64 = 40;     // 6 regs (+0 to +5)
+   localparam SR_CLEAR_RX_FIFO = 48; // 1 reg
+   localparam SR_CLEAR_TX_FIFO = 49; // 1 reg
+   localparam SR_GLOBAL_RESET = 50; // 1 reg
+   localparam SR_REG_TEST32 = 52; // 1 reg
+
+   wire [7:0]	COMPAT_NUM = 8'd3;
+   
+   wire 	wb_clk = clk_fpga;
+   wire 	wb_rst, global_reset;
+
+   wire 	pps_int;
+   wire [63:0] 	vita_time, vita_time_pps;
+   reg [15:0] 	reg_leds, reg_cgen_ctrl, reg_test, xfer_rate;
+   wire [7:0] 	test_rate;
+   wire [3:0] 	test_ctrl;
+   
+   wire [7:0] 	set_addr;
+   wire [31:0] 	set_data;
+   wire 	set_stb;
+   
+   wire [31:0]  debug0;
+   wire [31:0]  debug1;
+
+   wire [31:0] 	debug_vt;
+   wire 	gpif_rst;
+   
+   wire 	rx_overrun_dsp, rx_overrun_gpmc, tx_underrun_dsp, tx_underrun_gpmc;
+   reg [7:0] 	frames_per_packet;
+   
+   assign rx_overrun = rx_overrun_gpmc | rx_overrun_dsp;
+   assign tx_underrun = tx_underrun_gpmc | tx_underrun_dsp;
+   
+   setting_reg #(.my_addr(SR_GLOBAL_RESET), .width(1)) sr_reset
+     (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
+      .in(set_data),.out(),.changed(global_reset));
+
+   reset_sync reset_sync_wb(.clk(wb_clk), .reset_in(rst_fpga | global_reset), .reset_out(wb_rst));
+   reset_sync reset_sync_gp(.clk(wb_clk), .reset_in(rst_fpga | global_reset), .reset_out(gpif_rst));
+   wire [15:0] 	test_len;
+   
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // GPIF Slave to Wishbone Master
+   localparam dw = 16;
+   localparam aw = 11;
+   localparam sw = 2;
+   
+   wire [dw-1:0] m0_dat_mosi, m0_dat_miso;
+   wire [aw-1:0] m0_adr;
+   wire [sw-1:0] m0_sel;
+   wire 	 m0_cyc, m0_stb, m0_we, m0_ack, m0_err, m0_rty;
+
+   wire [31:0] 	 debug_gpmc;
+
+   wire [35:0] 	 tx_data, rx_data, tx_err_data;
+   wire 	 tx_src_rdy, tx_dst_rdy, rx_src_rdy, rx_dst_rdy, 
+		 tx_err_src_rdy, tx_err_dst_rdy;
+
+   wire 	 bus_error;
+   wire 	 clear_tx, clear_rx;
+   
+   setting_reg #(.my_addr(SR_CLEAR_RX_FIFO), .width(1)) sr_clear_rx
+     (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
+      .in(set_data),.out(),.changed(clear_rx));
+
+   setting_reg #(.my_addr(SR_CLEAR_TX_FIFO), .width(1)) sr_clear_tx
+     (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
+      .in(set_data),.out(),.changed(clear_tx));
+
+   gpif #(.TXFIFOSIZE(TXFIFOSIZE), .RXFIFOSIZE(RXFIFOSIZE))
+   gpif (.gpif_clk(gpif_clk), .gpif_rst(gpif_rst), .gpif_d(gpif_d),
+	 .gpif_ctl(gpif_ctl), .gpif_rdy(gpif_rdy), .gpif_misc(gpif_misc),
+	 
+	 .wb_clk(wb_clk), .wb_rst(wb_rst),
+	 .wb_adr_o(m0_adr), .wb_dat_mosi(m0_dat_mosi), .wb_dat_miso(m0_dat_miso),
+	 .wb_sel_o(m0_sel), .wb_cyc_o(m0_cyc), .wb_stb_o(m0_stb), .wb_we_o(m0_we),
+	 .wb_ack_i(m0_ack), .triggers(8'd0),
+	 
+	 .fifo_clk(wb_clk), .fifo_rst(wb_rst), .clear_tx(clear_tx), .clear_rx(clear_rx),
+	 .tx_data_o(tx_data), .tx_src_rdy_o(tx_src_rdy), .tx_dst_rdy_i(tx_dst_rdy),
+	 .rx_data_i(rx_data), .rx_src_rdy_i(rx_src_rdy), .rx_dst_rdy_o(rx_dst_rdy),
+	 .tx_err_data_i(tx_err_data), .tx_err_src_rdy_i(tx_err_src_rdy), .tx_err_dst_rdy_o(tx_err_dst_rdy),
+	 
+	 .tx_underrun(tx_underrun_gpmc), .rx_overrun(rx_overrun_gpmc),
+
+	 .frames_per_packet(frames_per_packet), .test_len(test_len), .test_rate(test_rate), .test_ctrl(test_ctrl),
+	 .debug0(debug0), .debug1(debug1));
+
+   // /////////////////////////////////////////////////////////////////////////
+   // DSP RX
+   wire [31:0] 	 sample_rx;
+   wire 	 strobe_rx, run_rx;
+   wire [31:0] 	 debug_rx_dsp, vr_debug;
+   
+   dsp_core_rx #(.BASE(SR_RX_DSP)) dsp_core_rx
+     (.clk(wb_clk),.rst(wb_rst),
+      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+      .adc_a({rx_i,2'b0}),.adc_ovf_a(0),.adc_b({rx_q,2'b0}),.adc_ovf_b(0),
+      .sample(sample_rx), .run(run_rx), .strobe(strobe_rx),
+      .debug(debug_rx_dsp) );
+   
+   vita_rx_chain #(.BASE(SR_RX_CTRL), .UNIT(0), .FIFOSIZE(9), .PROT_ENG_FLAGS(0)) vita_rx_chain
+     (.clk(wb_clk),.reset(wb_rst),.clear(clear_rx),
+      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+      .vita_time(vita_time), .overrun(rx_overrun_dsp),
+      .sample(sample_rx), .run(run_rx), .strobe(strobe_rx),
+      .rx_data_o(rx_data), .rx_dst_rdy_i(rx_dst_rdy), .rx_src_rdy_o(rx_src_rdy),
+      .debug(vr_debug) );
+   
+   // ///////////////////////////////////////////////////////////////////////////////////
+   // DSP TX
+
+   wire [15:0] 	 tx_i_int, tx_q_int;
+   wire 	 run_tx;
+   
+   vita_tx_chain #(.BASE_CTRL(SR_TX_CTRL), .BASE_DSP(SR_TX_DSP), 
+		   .REPORT_ERROR(1), .DO_FLOW_CONTROL(0),
+		   .PROT_ENG_FLAGS(0), .USE_TRANS_HEADER(0),
+		   .DSP_NUMBER(0)) 
+   vita_tx_chain
+     (.clk(wb_clk), .reset(wb_rst),
+      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+      .vita_time(vita_time),
+      .tx_data_i(tx_data), .tx_src_rdy_i(tx_src_rdy), .tx_dst_rdy_o(tx_dst_rdy),
+      .err_data_o(tx_err_data), .err_src_rdy_o(tx_err_src_rdy), .err_dst_rdy_i(tx_err_dst_rdy),
+      .dac_a(tx_i_int),.dac_b(tx_q_int),
+      .underrun(tx_underrun_dsp), .run(run_tx),
+      .debug(debug_vt));
+   
+   assign tx_i = tx_i_int[15:2];
+   assign tx_q = tx_q_int[15:2];
+   
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Wishbone Intercon, single master
+   wire [dw-1:0] s0_dat_mosi, s1_dat_mosi, s0_dat_miso, s1_dat_miso, s2_dat_mosi, s3_dat_mosi, s2_dat_miso, s3_dat_miso,
+		 s4_dat_mosi, s5_dat_mosi, s4_dat_miso, s5_dat_miso, s6_dat_mosi, s7_dat_mosi, s6_dat_miso, s7_dat_miso,
+		 s8_dat_mosi, s9_dat_mosi, s8_dat_miso, s9_dat_miso, sa_dat_mosi, sb_dat_mosi, sa_dat_miso, sb_dat_miso,
+		 sc_dat_mosi, sd_dat_mosi, sc_dat_miso, sd_dat_miso, se_dat_mosi, sf_dat_mosi, se_dat_miso, sf_dat_miso;
+   wire [aw-1:0] s0_adr,s1_adr,s2_adr,s3_adr,s4_adr,s5_adr,s6_adr,s7_adr;
+   wire [aw-1:0] s8_adr,s9_adr,sa_adr,sb_adr,sc_adr, sd_adr, se_adr, sf_adr;
+   wire [sw-1:0] s0_sel,s1_sel,s2_sel,s3_sel,s4_sel,s5_sel,s6_sel,s7_sel;
+   wire [sw-1:0] s8_sel,s9_sel,sa_sel,sb_sel,sc_sel, sd_sel, se_sel, sf_sel;
+   wire 	 s0_ack,s1_ack,s2_ack,s3_ack,s4_ack,s5_ack,s6_ack,s7_ack;
+   wire 	 s8_ack,s9_ack,sa_ack,sb_ack,sc_ack, sd_ack, se_ack, sf_ack;
+   wire 	 s0_stb,s1_stb,s2_stb,s3_stb,s4_stb,s5_stb,s6_stb,s7_stb;
+   wire 	 s8_stb,s9_stb,sa_stb,sb_stb,sc_stb, sd_stb, se_stb, sf_stb;
+   wire 	 s0_cyc,s1_cyc,s2_cyc,s3_cyc,s4_cyc,s5_cyc,s6_cyc,s7_cyc;
+   wire 	 s8_cyc,s9_cyc,sa_cyc,sb_cyc,sc_cyc, sd_cyc, se_cyc, sf_cyc;
+   wire 	 s0_we,s1_we,s2_we,s3_we,s4_we,s5_we,s6_we,s7_we;
+   wire 	 s8_we,s9_we,sa_we,sb_we,sc_we,sd_we, se_we, sf_we;
+   
+   wb_1master #(.dw(dw), .aw(aw), .sw(sw), .decode_w(4),
+		.s0_addr(4'h0), .s0_mask(4'hF), .s1_addr(4'h1), .s1_mask(4'hF),
+		.s2_addr(4'h2), .s2_mask(4'hF),	.s3_addr(4'h3), .s3_mask(4'hF),
+		.s4_addr(4'h4), .s4_mask(4'hF),	.s5_addr(4'h5), .s5_mask(4'hF),
+		.s6_addr(4'h6), .s6_mask(4'hF),	.s7_addr(4'h7), .s7_mask(4'hF),
+		.s8_addr(4'h8), .s8_mask(4'hE),	.s9_addr(4'hf), .s9_mask(4'hF), // slave 8 is double wide
+		.sa_addr(4'ha), .sa_mask(4'hF),	.sb_addr(4'hb), .sb_mask(4'hF),
+		.sc_addr(4'hc), .sc_mask(4'hF),	.sd_addr(4'hd), .sd_mask(4'hF),
+		.se_addr(4'he), .se_mask(4'hF),	.sf_addr(4'hf), .sf_mask(4'hF))
+   wb_1master
+     (.clk_i(wb_clk),.rst_i(wb_rst),       
+      .m0_dat_o(m0_dat_miso),.m0_ack_o(m0_ack),.m0_err_o(m0_err),.m0_rty_o(m0_rty),.m0_dat_i(m0_dat_mosi),
+      .m0_adr_i(m0_adr),.m0_sel_i(m0_sel),.m0_we_i(m0_we),.m0_cyc_i(m0_cyc),.m0_stb_i(m0_stb),
+      .s0_dat_o(s0_dat_mosi),.s0_adr_o(s0_adr),.s0_sel_o(s0_sel),.s0_we_o(s0_we),.s0_cyc_o(s0_cyc),.s0_stb_o(s0_stb),
+      .s0_dat_i(s0_dat_miso),.s0_ack_i(s0_ack),.s0_err_i(0),.s0_rty_i(0),
+      .s1_dat_o(s1_dat_mosi),.s1_adr_o(s1_adr),.s1_sel_o(s1_sel),.s1_we_o(s1_we),.s1_cyc_o(s1_cyc),.s1_stb_o(s1_stb),
+      .s1_dat_i(s1_dat_miso),.s1_ack_i(s1_ack),.s1_err_i(0),.s1_rty_i(0),
+      .s2_dat_o(s2_dat_mosi),.s2_adr_o(s2_adr),.s2_sel_o(s2_sel),.s2_we_o(s2_we),.s2_cyc_o(s2_cyc),.s2_stb_o(s2_stb),
+      .s2_dat_i(s2_dat_miso),.s2_ack_i(s2_ack),.s2_err_i(0),.s2_rty_i(0),
+      .s3_dat_o(s3_dat_mosi),.s3_adr_o(s3_adr),.s3_sel_o(s3_sel),.s3_we_o(s3_we),.s3_cyc_o(s3_cyc),.s3_stb_o(s3_stb),
+      .s3_dat_i(s3_dat_miso),.s3_ack_i(s3_ack),.s3_err_i(0),.s3_rty_i(0),
+      .s4_dat_o(s4_dat_mosi),.s4_adr_o(s4_adr),.s4_sel_o(s4_sel),.s4_we_o(s4_we),.s4_cyc_o(s4_cyc),.s4_stb_o(s4_stb),
+      .s4_dat_i(s4_dat_miso),.s4_ack_i(s4_ack),.s4_err_i(0),.s4_rty_i(0),
+      .s5_dat_o(s5_dat_mosi),.s5_adr_o(s5_adr),.s5_sel_o(s5_sel),.s5_we_o(s5_we),.s5_cyc_o(s5_cyc),.s5_stb_o(s5_stb),
+      .s5_dat_i(s5_dat_miso),.s5_ack_i(s5_ack),.s5_err_i(0),.s5_rty_i(0),
+      .s6_dat_o(s6_dat_mosi),.s6_adr_o(s6_adr),.s6_sel_o(s6_sel),.s6_we_o(s6_we),.s6_cyc_o(s6_cyc),.s6_stb_o(s6_stb),
+      .s6_dat_i(s6_dat_miso),.s6_ack_i(s6_ack),.s6_err_i(0),.s6_rty_i(0),
+      .s7_dat_o(s7_dat_mosi),.s7_adr_o(s7_adr),.s7_sel_o(s7_sel),.s7_we_o(s7_we),.s7_cyc_o(s7_cyc),.s7_stb_o(s7_stb),
+      .s7_dat_i(s7_dat_miso),.s7_ack_i(s7_ack),.s7_err_i(0),.s7_rty_i(0),
+      .s8_dat_o(s8_dat_mosi),.s8_adr_o(s8_adr),.s8_sel_o(s8_sel),.s8_we_o(s8_we),.s8_cyc_o(s8_cyc),.s8_stb_o(s8_stb),
+      .s8_dat_i(s8_dat_miso),.s8_ack_i(s8_ack),.s8_err_i(0),.s8_rty_i(0),
+      .s9_dat_o(s9_dat_mosi),.s9_adr_o(s9_adr),.s9_sel_o(s9_sel),.s9_we_o(s9_we),.s9_cyc_o(s9_cyc),.s9_stb_o(s9_stb),
+      .s9_dat_i(s9_dat_miso),.s9_ack_i(s9_ack),.s9_err_i(0),.s9_rty_i(0),
+      .sa_dat_o(sa_dat_mosi),.sa_adr_o(sa_adr),.sa_sel_o(sa_sel),.sa_we_o(sa_we),.sa_cyc_o(sa_cyc),.sa_stb_o(sa_stb),
+      .sa_dat_i(sa_dat_miso),.sa_ack_i(sa_ack),.sa_err_i(0),.sa_rty_i(0),
+      .sb_dat_o(sb_dat_mosi),.sb_adr_o(sb_adr),.sb_sel_o(sb_sel),.sb_we_o(sb_we),.sb_cyc_o(sb_cyc),.sb_stb_o(sb_stb),
+      .sb_dat_i(sb_dat_miso),.sb_ack_i(sb_ack),.sb_err_i(0),.sb_rty_i(0),
+      .sc_dat_o(sc_dat_mosi),.sc_adr_o(sc_adr),.sc_sel_o(sc_sel),.sc_we_o(sc_we),.sc_cyc_o(sc_cyc),.sc_stb_o(sc_stb),
+      .sc_dat_i(sc_dat_miso),.sc_ack_i(sc_ack),.sc_err_i(0),.sc_rty_i(0),
+      .sd_dat_o(sd_dat_mosi),.sd_adr_o(sd_adr),.sd_sel_o(sd_sel),.sd_we_o(sd_we),.sd_cyc_o(sd_cyc),.sd_stb_o(sd_stb),
+      .sd_dat_i(sd_dat_miso),.sd_ack_i(sd_ack),.sd_err_i(0),.sd_rty_i(0),
+      .se_dat_o(se_dat_mosi),.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_miso),.se_ack_i(se_ack),.se_err_i(0),.se_rty_i(0),
+      .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 s5_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;
+
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Slave 0, Misc LEDs, Switches, controls
+   
+   localparam REG_LEDS = 7'd0;         // out
+   localparam REG_CGEN_CTRL = 7'd4;    // out
+   localparam REG_CGEN_ST = 7'd6;      // in
+   localparam REG_TEST = 7'd8;         // out
+   localparam REG_RX_FRAMELEN = 7'd10; // in
+   localparam REG_TX_FRAMELEN = 7'd12; // out
+   localparam REG_XFER_RATE = 7'd14;   // out
+   localparam REG_COMPAT = 7'd16;      // in
+   
+   always @(posedge wb_clk)
+     if(wb_rst)
+       begin
+	  reg_leds <= 0;
+	  reg_cgen_ctrl <= 2'b11;
+	  reg_test <= 0;
+	  xfer_rate <= 0;
+	  frames_per_packet <= 0;
+       end
+     else
+       if(s0_cyc & s0_stb & s0_we) 
+	 case(s0_adr[6:0])
+	   REG_LEDS :
+	     reg_leds <= s0_dat_mosi;
+	   REG_CGEN_CTRL :
+	     reg_cgen_ctrl <= s0_dat_mosi;
+	   REG_TEST :
+	     reg_test <= s0_dat_mosi;
+	   REG_RX_FRAMELEN :
+	     frames_per_packet <= s0_dat_mosi[7:0];
+	   REG_XFER_RATE :
+	     xfer_rate <= s0_dat_mosi;
+	 endcase // case (s0_adr[6:0])
+
+   assign test_ctrl = xfer_rate[11:8];
+   assign test_rate = xfer_rate[7:0];
+   assign test_len = reg_test[15:0];
+   
+   assign { debug_led[2],debug_led[0],debug_led[1] } = reg_leds;  // LEDs are arranged funny on board
+   assign { cgen_sync_b, cgen_ref_sel } = reg_cgen_ctrl;
+   
+   assign s0_dat_miso = (s0_adr[6:0] == REG_LEDS) ? reg_leds : 
+			(s0_adr[6:0] == REG_CGEN_CTRL) ? reg_cgen_ctrl :
+			(s0_adr[6:0] == REG_CGEN_ST) ? {13'b0,cgen_st_status,cgen_st_ld,cgen_st_refmon} :
+			(s0_adr[6:0] == REG_TEST) ? reg_test :
+			(s0_adr[6:0] == REG_COMPAT) ? { 8'd0, COMPAT_NUM } :
+			16'hBEEF;
+   
+   assign s0_ack = s0_stb & s0_cyc;
+
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Slave 1, UART
+   //    depth of 3 is 128 entries, clkdiv of 278 gives 230.4k with a 64 MHz system clock
+   
+   simple_uart #(.TXDEPTH(3),.RXDEPTH(3), .CLKDIV_DEFAULT(278)) uart 
+     (.clk_i(wb_clk),.rst_i(wb_rst),
+      .we_i(s1_we),.stb_i(s1_stb),.cyc_i(s1_cyc),.ack_o(s1_ack),
+      .adr_i(s1_adr[3:1]),.dat_i({16'd0,s1_dat_mosi}),.dat_o(s1_dat_miso),
+      .rx_int_o(),.tx_int_o(),
+      .tx_o(debug_txd),.rx_i(debug_rxd),.baud_o());
+
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Slave 2, SPI
+
+   spi_top16 shared_spi
+     (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.wb_adr_i(s2_adr[4:0]),.wb_dat_i(s2_dat_mosi),
+      .wb_dat_o(s2_dat_miso),.wb_sel_i(s2_sel),.wb_we_i(s2_we),.wb_stb_i(s2_stb),
+      .wb_cyc_i(s2_cyc),.wb_ack_o(s2_ack),.wb_err_o(),.wb_int_o(),
+      .ss_pad_o(sen), .sclk_pad_o(sclk), .mosi_pad_o(mosi), .miso_pad_i(miso) );
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // Slave 3, I2C
+
+   wire 	scl_pad_i, scl_pad_o, scl_pad_oen_o, sda_pad_i, sda_pad_o, sda_pad_oen_o;
+   i2c_master_top #(.ARST_LVL(1)) i2c 
+     (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.arst_i(1'b0), 
+      .wb_adr_i(s3_adr[3:1]),.wb_dat_i(s3_dat_mosi[7:0]),.wb_dat_o(s3_dat_miso[7:0]),
+      .wb_we_i(s3_we),.wb_stb_i(s3_stb),.wb_cyc_i(s3_cyc),
+      .wb_ack_o(s3_ack),.wb_inta_o(),
+      .scl_pad_i(scl_pad_i),.scl_pad_o(scl_pad_o),.scl_padoen_o(scl_pad_oen_o),
+      .sda_pad_i(sda_pad_i),.sda_pad_o(sda_pad_o),.sda_padoen_o(sda_pad_oen_o) );
+
+   assign 	 s3_dat_miso[15:8] = 8'd0;
+
+   // I2C -- Don't use external transistors for open drain, the FPGA implements this
+   IOBUF scl_pin(.O(scl_pad_i), .IO(db_scl), .I(scl_pad_o), .T(scl_pad_oen_o));
+   IOBUF sda_pin(.O(sda_pad_i), .IO(db_sda), .I(sda_pad_o), .T(sda_pad_oen_o));
+
+   // /////////////////////////////////////////////////////////////////////////
+   // GPIOs -- Slave #4
+
+   wire [31:0] 	atr_lines;
+   wire [31:0] 	debug_gpio_0, debug_gpio_1;
+   
+   nsgpio16LE 
+     nsgpio16LE(.clk_i(wb_clk),.rst_i(wb_rst),
+		.cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[3:0]),.we_i(s4_we),
+		.dat_i(s4_dat_mosi),.dat_o(s4_dat_miso),.ack_o(s4_ack),
+		.atr(atr_lines),.debug_0(debug_gpio_0),.debug_1(debug_gpio_1),
+		.gpio( {io_tx,io_rx} ) );
+
+   // /////////////////////////////////////////////////////////////////////////
+   // Settings Bus -- Slave #8 + 9
+
+   // only have 64 regs, 32 bits each with current setup...
+   settings_bus_16LE #(.AWIDTH(11),.RWIDTH(6)) settings_bus_16LE
+     (.wb_clk(wb_clk),.wb_rst(wb_rst),.wb_adr_i(s8_adr[10:0]),.wb_dat_i(s8_dat_mosi),
+      .wb_stb_i(s8_stb),.wb_we_i(s8_we),.wb_ack_o(s8_ack),
+      .strobe(set_stb),.addr(set_addr),.data(set_data) );
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // ATR Controller -- Slave #6
+
+   atr_controller16 atr_controller16
+     (.clk_i(wb_clk), .rst_i(wb_rst),
+      .adr_i(s6_adr[5:0]), .sel_i(s6_sel), .dat_i(s6_dat_mosi), .dat_o(s6_dat_miso),
+      .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
+
+   wire [31:0] reg_test32;
+
+   setting_reg #(.my_addr(SR_REG_TEST32)) sr_reg_test32
+     (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
+      .in(set_data),.out(reg_test32),.changed());
+
+   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({5'b0,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(reg_test32),              .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), .vita_time_pps(vita_time_pps), .pps_int(pps_int),
+      .exp_time_in(0));
+   
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Debug circuitry
+
+   assign debug_clk = { gpif_clk, clk_fpga };
+   assign debug = debug0;
+   assign debug_gpio_0 = 0;
+   assign debug_gpio_1 = 0;
+   //assign {io_tx,io_rx} = {debug1};
+   
+endmodule // u1plus_core
diff --git a/fpga/usrp2/top/u1e/.gitignore b/fpga/usrp2/top/E1x0/.gitignore
index 8d872713e..8d872713e 100644
--- a/fpga/usrp2/top/u1e/.gitignore
+++ b/fpga/usrp2/top/E1x0/.gitignore
diff --git a/fpga/usrp2/top/u1e/Makefile b/fpga/usrp2/top/E1x0/Makefile
index 5d721979b..5d721979b 100644
--- a/fpga/usrp2/top/u1e/Makefile
+++ b/fpga/usrp2/top/E1x0/Makefile
diff --git a/fpga/usrp2/top/u1e_passthru/Makefile b/fpga/usrp2/top/E1x0/Makefile.passthru
index f2d835608..f2d835608 100644
--- a/fpga/usrp2/top/u1e_passthru/Makefile
+++ b/fpga/usrp2/top/E1x0/Makefile.passthru
diff --git a/fpga/usrp2/top/u1e/README b/fpga/usrp2/top/E1x0/README
index 14c7a4955..14c7a4955 100644
--- a/fpga/usrp2/top/u1e/README
+++ b/fpga/usrp2/top/E1x0/README
diff --git a/fpga/usrp2/top/u1e/cmdfile b/fpga/usrp2/top/E1x0/cmdfile
index 291c723b8..291c723b8 100644
--- a/fpga/usrp2/top/u1e/cmdfile
+++ b/fpga/usrp2/top/E1x0/cmdfile
diff --git a/fpga/usrp2/top/u1e/core_compile b/fpga/usrp2/top/E1x0/core_compile
index dc0cd081e..dc0cd081e 100755
--- a/fpga/usrp2/top/u1e/core_compile
+++ b/fpga/usrp2/top/E1x0/core_compile
diff --git a/fpga/usrp2/top/u1e/make.sim b/fpga/usrp2/top/E1x0/make.sim
index 1c163884c..1c163884c 100644
--- a/fpga/usrp2/top/u1e/make.sim
+++ b/fpga/usrp2/top/E1x0/make.sim
diff --git a/fpga/usrp2/top/u1e_passthru/passthru.ucf b/fpga/usrp2/top/E1x0/passthru.ucf
index 64e6f0440..64e6f0440 100644
--- a/fpga/usrp2/top/u1e_passthru/passthru.ucf
+++ b/fpga/usrp2/top/E1x0/passthru.ucf
diff --git a/fpga/usrp2/top/E1x0/passthru.v b/fpga/usrp2/top/E1x0/passthru.v
new file mode 100644
index 000000000..486257366
--- /dev/null
+++ b/fpga/usrp2/top/E1x0/passthru.v
@@ -0,0 +1,35 @@
+//
+// 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/>.
+//
+
+`timescale 1ns / 1ps
+//////////////////////////////////////////////////////////////////////////////////
+
+module passthru
+  (input overo_gpio145,
+   output cgen_sclk,
+   output cgen_sen_b,
+   output cgen_mosi,
+   input fpga_cfg_din,
+   input fpga_cfg_cclk
+   );
+   
+   assign cgen_sclk = fpga_cfg_cclk;
+   assign cgen_sen_b = overo_gpio145;
+   assign cgen_mosi = fpga_cfg_din;
+   
+   
+endmodule // passthru
diff --git a/fpga/usrp2/top/u1e/tb_u1e.v b/fpga/usrp2/top/E1x0/tb_u1e.v
index 5fc8134fb..188190f04 100644
--- a/fpga/usrp2/top/u1e/tb_u1e.v
+++ b/fpga/usrp2/top/E1x0/tb_u1e.v
@@ -1,3 +1,20 @@
+//
+// 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/>.
+//
+
 `timescale 1ps / 1ps
 //////////////////////////////////////////////////////////////////////////////////
 
diff --git a/fpga/usrp2/top/u1e/timing.ucf b/fpga/usrp2/top/E1x0/timing.ucf
index 8df28c9d3..8df28c9d3 100644
--- a/fpga/usrp2/top/u1e/timing.ucf
+++ b/fpga/usrp2/top/E1x0/timing.ucf
diff --git a/fpga/usrp2/top/u1e/u1e.ucf b/fpga/usrp2/top/E1x0/u1e.ucf
index 0c487a601..0c487a601 100644
--- a/fpga/usrp2/top/u1e/u1e.ucf
+++ b/fpga/usrp2/top/E1x0/u1e.ucf
diff --git a/fpga/usrp2/top/u1e/u1e.v b/fpga/usrp2/top/E1x0/u1e.v
index 445b14a03..adf42fd07 100644
--- a/fpga/usrp2/top/u1e/u1e.v
+++ b/fpga/usrp2/top/E1x0/u1e.v
@@ -1,3 +1,20 @@
+//
+// 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/>.
+//
+
 `timescale 1ns / 1ps
 //////////////////////////////////////////////////////////////////////////////////
 
diff --git a/fpga/usrp2/top/u1e/u1e_core.v b/fpga/usrp2/top/E1x0/u1e_core.v
index d10a3ab30..4c513587b 100644
--- a/fpga/usrp2/top/u1e/u1e_core.v
+++ b/fpga/usrp2/top/E1x0/u1e_core.v
@@ -1,3 +1,20 @@
+//
+// 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/>.
+//
+
 
 
 module u1e_core
diff --git a/fpga/usrp2/top/u2plus/.gitignore b/fpga/usrp2/top/N2x0/.gitignore
index 1b2211df0..1b2211df0 100644
--- a/fpga/usrp2/top/u2plus/.gitignore
+++ b/fpga/usrp2/top/N2x0/.gitignore
diff --git a/fpga/usrp2/top/u2plus/Makefile.N200 b/fpga/usrp2/top/N2x0/Makefile.N200R3
index 9175f9304..a525836ed 100644
--- a/fpga/usrp2/top/u2plus/Makefile.N200
+++ b/fpga/usrp2/top/N2x0/Makefile.N200R3
@@ -6,7 +6,7 @@
 # Project Setup
 ##################################################
 TOP_MODULE = u2plus
-BUILD_DIR = $(abspath build$(ISE)-N200)
+BUILD_DIR = $(abspath build$(ISE)-N200R3)
 
 ##################################################
 # Include other makefiles
diff --git a/fpga/usrp2/top/u1e_ethdebug/Makefile b/fpga/usrp2/top/N2x0/Makefile.N200R4
index 751b52970..0ca40e1bd 100644
--- a/fpga/usrp2/top/u1e_ethdebug/Makefile
+++ b/fpga/usrp2/top/N2x0/Makefile.N200R4
@@ -5,14 +5,26 @@
 ##################################################
 # Project Setup
 ##################################################
-TOP_MODULE = u1e
-BUILD_DIR = $(abspath build$(ISE))
+TOP_MODULE = u2plus
+BUILD_DIR = $(abspath build$(ISE)-N200R4)
 
 ##################################################
 # Include other makefiles
 ##################################################
 
 include ../Makefile.common
+include ../../fifo/Makefile.srcs
+include ../../control_lib/Makefile.srcs
+include ../../sdr_lib/Makefile.srcs
+include ../../serdes/Makefile.srcs
+include ../../simple_gemac/Makefile.srcs
+include ../../timing/Makefile.srcs
+include ../../opencores/Makefile.srcs
+include ../../vrt/Makefile.srcs
+include ../../udp/Makefile.srcs
+include ../../coregen/Makefile.srcs
+include ../../extramfifo/Makefile.srcs
+
 
 ##################################################
 # Project Properties
@@ -20,8 +32,8 @@ include ../Makefile.common
 export PROJECT_PROPERTIES := \
 family "Spartan-3A DSP" \
 device xc3sd1800a \
-package cs484 \
-speed -4 \
+package fg676 \
+speed -5 \
 top_level_module_type "HDL" \
 synthesis_tool "XST (VHDL/Verilog)" \
 simulator "ISE Simulator (VHDL/Verilog)" \
@@ -33,10 +45,15 @@ simulator "ISE Simulator (VHDL/Verilog)" \
 # Sources
 ##################################################
 TOP_SRCS = \
-u1e.v \
-u1e.ucf
+capture_ddrlvds.v \
+u2plus_core.v \
+u2plus.v \
+u2plus.ucf
 
-SOURCES = $(abspath $(TOP_SRCS))
+SOURCES = $(abspath $(TOP_SRCS)) $(FIFO_SRCS) \
+$(CONTROL_LIB_SRCS) $(SDR_LIB_SRCS) $(SERDES_SRCS) \
+$(SIMPLE_GEMAC_SRCS) $(TIMING_SRCS) $(OPENCORES_SRCS) \
+$(VRT_SRCS) $(UDP_SRCS) $(COREGEN_SRCS) $(EXTRAM_SRCS)
 
 ##################################################
 # Process Properties
@@ -49,7 +66,8 @@ SYNTHESIZE_PROPERTIES = \
 "Register Balancing" Yes \
 "Use Clock Enable" Auto \
 "Use Synchronous Reset" Auto \
-"Use Synchronous Set" Auto
+"Use Synchronous Set" Auto \
+"Verilog Macros" "LVDS=1"
 
 TRANSLATE_PROPERTIES = \
 "Macro Search Path" "$(shell pwd)/../../coregen/"
@@ -77,7 +95,6 @@ GEN_PROG_FILE_PROPERTIES = \
 "Create Binary Configuration File" TRUE \
 "Done (Output Events)" 5 \
 "Enable Bitstream Compression" TRUE \
-"Enable Outputs (Output Events)" 6 \
-"Unused IOB Pins" "Pull Up"
+"Enable Outputs (Output Events)" 6 
 
 SIM_MODEL_PROPERTIES = ""
diff --git a/fpga/usrp2/top/u2plus/Makefile b/fpga/usrp2/top/N2x0/Makefile.N210R3
index 38400ce62..e29251e1c 100644
--- a/fpga/usrp2/top/u2plus/Makefile
+++ b/fpga/usrp2/top/N2x0/Makefile.N210R3
@@ -6,7 +6,7 @@
 # Project Setup
 ##################################################
 TOP_MODULE = u2plus
-BUILD_DIR = $(abspath build$(ISE))
+BUILD_DIR = $(abspath build$(ISE)-N210R3)
 
 ##################################################
 # Include other makefiles
diff --git a/fpga/usrp2/top/N2x0/Makefile.N210R4 b/fpga/usrp2/top/N2x0/Makefile.N210R4
new file mode 100644
index 000000000..01a9e19fd
--- /dev/null
+++ b/fpga/usrp2/top/N2x0/Makefile.N210R4
@@ -0,0 +1,100 @@
+#
+# Copyright 2008 Ettus Research LLC
+#
+
+##################################################
+# Project Setup
+##################################################
+TOP_MODULE = u2plus
+BUILD_DIR = $(abspath build$(ISE)-N210R4)
+
+##################################################
+# Include other makefiles
+##################################################
+
+include ../Makefile.common
+include ../../fifo/Makefile.srcs
+include ../../control_lib/Makefile.srcs
+include ../../sdr_lib/Makefile.srcs
+include ../../serdes/Makefile.srcs
+include ../../simple_gemac/Makefile.srcs
+include ../../timing/Makefile.srcs
+include ../../opencores/Makefile.srcs
+include ../../vrt/Makefile.srcs
+include ../../udp/Makefile.srcs
+include ../../coregen/Makefile.srcs
+include ../../extramfifo/Makefile.srcs
+
+
+##################################################
+# Project Properties
+##################################################
+export PROJECT_PROPERTIES := \
+family "Spartan-3A DSP" \
+device xc3sd3400a \
+package fg676 \
+speed -5 \
+top_level_module_type "HDL" \
+synthesis_tool "XST (VHDL/Verilog)" \
+simulator "ISE Simulator (VHDL/Verilog)" \
+"Preferred Language" "Verilog" \
+"Enable Message Filtering" FALSE \
+"Display Incremental Messages" FALSE 
+
+##################################################
+# Sources
+##################################################
+TOP_SRCS = \
+capture_ddrlvds.v \
+u2plus_core.v \
+u2plus.v \
+u2plus.ucf
+
+SOURCES = $(abspath $(TOP_SRCS)) $(FIFO_SRCS) \
+$(CONTROL_LIB_SRCS) $(SDR_LIB_SRCS) $(SERDES_SRCS) \
+$(SIMPLE_GEMAC_SRCS) $(TIMING_SRCS) $(OPENCORES_SRCS) \
+$(VRT_SRCS) $(UDP_SRCS) $(COREGEN_SRCS) $(EXTRAM_SRCS)
+
+##################################################
+# Process Properties
+##################################################
+SYNTHESIZE_PROPERTIES = \
+"Number of Clock Buffers" 8 \
+"Pack I/O Registers into IOBs" Yes \
+"Optimization Effort" High \
+"Optimize Instantiated Primitives" TRUE \
+"Register Balancing" Yes \
+"Use Clock Enable" Auto \
+"Use Synchronous Reset" Auto \
+"Use Synchronous Set" Auto \
+"Verilog Macros" "LVDS=1"
+
+TRANSLATE_PROPERTIES = \
+"Macro Search Path" "$(shell pwd)/../../coregen/"
+
+MAP_PROPERTIES = \
+"Allow Logic Optimization Across Hierarchy" TRUE \
+"Map to Input Functions" 4 \
+"Optimization Strategy (Cover Mode)" Speed \
+"Pack I/O Registers/Latches into IOBs" "For Inputs and Outputs" \
+"Perform Timing-Driven Packing and Placement" TRUE \
+"Map Effort Level" High \
+"Extra Effort" Normal \
+"Combinatorial Logic Optimization" TRUE \
+"Register Duplication" TRUE
+
+PLACE_ROUTE_PROPERTIES = \
+"Place & Route Effort Level (Overall)" High 
+
+STATIC_TIMING_PROPERTIES = \
+"Number of Paths in Error/Verbose Report" 10 \
+"Report Type" "Error Report"
+
+GEN_PROG_FILE_PROPERTIES = \
+"Configuration Rate" 6 \
+"Create Binary Configuration File" TRUE \
+"Done (Output Events)" 5 \
+"Enable Bitstream Compression" TRUE \
+"Enable Outputs (Output Events)" 6 
+
+SIM_MODEL_PROPERTIES = ""
diff --git a/fpga/usrp2/top/u2plus/bootloader.rmi b/fpga/usrp2/top/N2x0/bootloader.rmi
index e5be670fb..e5be670fb 100644
--- a/fpga/usrp2/top/u2plus/bootloader.rmi
+++ b/fpga/usrp2/top/N2x0/bootloader.rmi
diff --git a/fpga/usrp2/top/N2x0/capture_ddrlvds.v b/fpga/usrp2/top/N2x0/capture_ddrlvds.v
new file mode 100644
index 000000000..e261dcbe8
--- /dev/null
+++ b/fpga/usrp2/top/N2x0/capture_ddrlvds.v
@@ -0,0 +1,55 @@
+//
+// 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/>.
+//
+
+
+
+module capture_ddrlvds
+  #(parameter WIDTH=7)
+   (input clk,
+    input ssclk_p,
+    input ssclk_n,
+    input [WIDTH-1:0] in_p,
+    input [WIDTH-1:0] in_n,
+    output reg [(2*WIDTH)-1:0] out);
+
+   wire [WIDTH-1:0] 	   ddr_dat;
+   wire 		   ssclk;
+   wire [(2*WIDTH)-1:0]    out_pre1;
+   reg [(2*WIDTH)-1:0] 	   out_pre2;
+   
+   IBUFGDS #(.IOSTANDARD("LVDS_33"), .DIFF_TERM("TRUE")) 
+   clkbuf (.O(ssclk), .I(ssclk_p), .IB(ssclk_n));
+   
+   genvar 	       i;
+   generate
+      for(i = 0; i < WIDTH; i = i + 1)
+	begin : gen_lvds_pins
+	   IBUFDS #(.IOSTANDARD("LVDS_33"),.DIFF_TERM("FALSE")) ibufds 
+	      (.O(ddr_dat[i]), .I(in_p[i]), .IB(in_n[i]) );
+	   IDDR2 #(.DDR_ALIGNMENT("C1")) iddr2
+	     (.Q0(out_pre1[2*i]), .Q1(out_pre1[(2*i)+1]), .C0(ssclk), .C1(~ssclk),
+	      .CE(1'b1), .D(ddr_dat[i]), .R(1'b0), .S(1'b0));
+	end
+   endgenerate
+
+   always @(posedge clk)
+     out_pre2 <= out_pre1;
+
+   always @(posedge clk)
+     out      <= out_pre2;
+   
+endmodule // capture_ddrlvds
diff --git a/fpga/usrp2/top/u2plus/u2plus.ucf b/fpga/usrp2/top/N2x0/u2plus.ucf
index 5fbe55c26..5fbe55c26 100755
--- a/fpga/usrp2/top/u2plus/u2plus.ucf
+++ b/fpga/usrp2/top/N2x0/u2plus.ucf
diff --git a/fpga/usrp2/top/u2plus/u2plus.v b/fpga/usrp2/top/N2x0/u2plus.v
index 7c2270df6..be6cdeeca 100644
--- a/fpga/usrp2/top/u2plus/u2plus.v
+++ b/fpga/usrp2/top/N2x0/u2plus.v
@@ -1,4 +1,22 @@
+//
+// 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/>.
+//
+
 `timescale 1ns / 1ps
+//`define LVDS 1
 //`define DCM_FOR_RAMCLK
 //////////////////////////////////////////////////////////////////////////////////
 
diff --git a/fpga/usrp2/top/u2plus/u2plus_core.v b/fpga/usrp2/top/N2x0/u2plus_core.v
index ee5d7efcd..8a7c6ddee 100644
--- a/fpga/usrp2/top/u2plus/u2plus_core.v
+++ b/fpga/usrp2/top/N2x0/u2plus_core.v
@@ -1,3 +1,20 @@
+//
+// 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/>.
+//
+
 // ////////////////////////////////////////////////////////////////////////////////
 // Module Name:    u2_core
 // ////////////////////////////////////////////////////////////////////////////////
diff --git a/fpga/usrp2/top/u2_rev3/.gitignore b/fpga/usrp2/top/USRP2/.gitignore
index f50a2b7e5..f50a2b7e5 100644
--- a/fpga/usrp2/top/u2_rev3/.gitignore
+++ b/fpga/usrp2/top/USRP2/.gitignore
diff --git a/fpga/usrp2/top/u2_rev3/Makefile b/fpga/usrp2/top/USRP2/Makefile
index e9b43491a..e9b43491a 100644
--- a/fpga/usrp2/top/u2_rev3/Makefile
+++ b/fpga/usrp2/top/USRP2/Makefile
diff --git a/fpga/usrp2/top/u2_rev3/u2_core.v b/fpga/usrp2/top/USRP2/u2_core.v
index 0e6120ec6..ca9762ac5 100644
--- a/fpga/usrp2/top/u2_rev3/u2_core.v
+++ b/fpga/usrp2/top/USRP2/u2_core.v
@@ -1,3 +1,20 @@
+//
+// 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/>.
+//
+
 // ////////////////////////////////////////////////////////////////////////////////
 // Module Name:    u2_core
 // ////////////////////////////////////////////////////////////////////////////////
diff --git a/fpga/usrp2/top/u2_rev3/u2_rev3.ucf b/fpga/usrp2/top/USRP2/u2_rev3.ucf
index 8017f61ff..8017f61ff 100644
--- a/fpga/usrp2/top/u2_rev3/u2_rev3.ucf
+++ b/fpga/usrp2/top/USRP2/u2_rev3.ucf
diff --git a/fpga/usrp2/top/u2_rev3/u2_rev3.v b/fpga/usrp2/top/USRP2/u2_rev3.v
index bc7ae5f16..4b0bb5541 100644
--- a/fpga/usrp2/top/u2_rev3/u2_rev3.v
+++ b/fpga/usrp2/top/USRP2/u2_rev3.v
@@ -1,3 +1,20 @@
+//
+// 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/>.
+//
+
 `timescale 1ns / 1ps
 //////////////////////////////////////////////////////////////////////////////////
 
diff --git a/fpga/usrp2/top/eth_test/.gitignore b/fpga/usrp2/top/eth_test/.gitignore
deleted file mode 100644
index b30397081..000000000
--- a/fpga/usrp2/top/eth_test/.gitignore
+++ /dev/null
@@ -1,43 +0,0 @@
-/xst
-/_ngo
-/_xmsgs
-/*.stx
-/*.tspec
-/*.xml
-/*.gyd
-/*.ngr
-/*.tim
-/*.err
-/*.lso
-/*.bld
-/*.cmd_log
-/*.ise_ISE_Backup
-/*.mfd
-/*.vm6
-/*.syr
-/*.xst
-/*.csv
-/*.html
-/*.jed
-/*.pad
-/*.ng*
-/*.pnx
-/*.rpt
-/*.prj
-/*_html
-/*_log
-/*.lfp
-/*.bit
-/*.bin
-/*.vcd
-/*.unroutes
-/*.drc
-/*_map.*
-/*_guide.*
-/*.twr
-/*.twx
-/a.out
-/*.xpi
-/*_pad.txt
-/*.bgn
-/*.par
diff --git a/fpga/usrp2/top/eth_test/eth_sim_top.v b/fpga/usrp2/top/eth_test/eth_sim_top.v
deleted file mode 100644
index 640a4e60f..000000000
--- a/fpga/usrp2/top/eth_test/eth_sim_top.v
+++ /dev/null
@@ -1,437 +0,0 @@
-//////////////////////////////////////////////////////////////////////////////////
-// Module Name:    u2_basic
-//////////////////////////////////////////////////////////////////////////////////
-
-module eth_sim_top
-  (// Clocks
-   input dsp_clk,
-   input wb_clk,
-   output clock_ready,
-   input clk_to_mac,
-   input pps_in,
-   
-   // Misc, debug
-   output led1,
-   output led2,
-   output [31:0] debug,
-   output [1:0] debug_clk,
-
-   // Expansion
-   input exp_pps_in,
-   output exp_pps_out,
-   
-   // GMII
-   //   GMII-CTRL
-   input GMII_COL,
-   input GMII_CRS,
-
-   //   GMII-TX
-   output [7:0] GMII_TXD,
-   output GMII_TX_EN,
-   output GMII_TX_ER,
-   output GMII_GTX_CLK,
-   input GMII_TX_CLK,  // 100mbps clk
-
-   //   GMII-RX
-   input [7:0] GMII_RXD,
-   input GMII_RX_CLK,
-   input GMII_RX_DV,
-   input GMII_RX_ER,
-
-   //   GMII-Management
-   inout MDIO,
-   output MDC,
-   input PHY_INTn,   // open drain
-   input PHY_RESETn,
-   input PHY_CLK,   // possibly use on-board osc
-
-   // SERDES
-   output ser_enable,
-   output ser_prbsen,
-   output ser_loopen,
-   output ser_rx_en,
-   
-   output ser_tx_clk,
-   output [15:0] ser_t,
-   output ser_tklsb,
-   output ser_tkmsb,
-
-   input ser_rx_clk,
-   input [15:0] ser_r,
-   input ser_rklsb,
-   input ser_rkmsb,
-   
-   // CPLD interface
-   output cpld_start,
-   output cpld_mode,
-   output cpld_done,
-   input cpld_din,
-   input cpld_clk,
-   input cpld_detached,
-   
-   // ADC
-   input [13:0] adc_a,
-   input adc_ovf_a,
-   output adc_oen_a,
-   output adc_pdn_a,
-   
-   input [13:0] adc_b,
-   input adc_ovf_b,
-   output adc_oen_b,
-   output adc_pdn_b,
-   
-   // DAC
-   output [15:0] dac_a,
-   output [15:0] dac_b,
-
-   // I2C
-   input scl_pad_i,
-   output scl_pad_o,
-   output scl_pad_oen_o,
-   input sda_pad_i,
-   output sda_pad_o,
-   output sda_pad_oen_o,
-   
-   // Clock Gen Control
-   output [1:0] clk_en,
-   output [1:0] clk_sel,
-   input clk_func,        // FIXME is an input to control the 9510
-   input clk_status,
-
-   // Generic SPI
-   output sclk,
-   output mosi,
-   input miso,
-   output sen_clk,
-   output sen_dac,
-   output sen_tx_db,
-   output sen_tx_adc,
-   output sen_tx_dac,
-   output sen_rx_db,
-   output sen_rx_adc,
-   output sen_rx_dac,
-   
-   // GPIO to DBoards
-   inout [15:0] io_tx,
-   inout [15:0] io_rx
-   );
-   
-   wire [7:0] 	set_addr;
-   wire [31:0] 	set_data;
-   wire 	set_stb;
-   
-   wire 	ram_loader_done;
-   wire 	ram_loader_rst, wb_rst, dsp_rst;
-
-   wire [31:0] 	ser_debug;
-   
-   //////////////////////////////////////////////////////////////////////////////////////////////////
-   // Wishbone Single Master INTERCON
-   parameter 	dw = 32;  // Data bus width
-   parameter 	aw = 16;  // Address bus width, for byte addressibility, 16 = 64K byte memory space
-   parameter 	sw = 4;   // Select width -- 32-bit data bus with 8-bit granularity.  
-      
-   wire [dw-1:0] m0_dat_o, m1_dat_o, m0_dat_i, m1_dat_i;
-   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;
-   wire [aw-1:0] m0_adr, m1_adr, s0_adr,s1_adr,s2_adr,s3_adr,s4_adr,s5_adr,s6_adr,s7_adr;
-   wire [sw-1:0] m0_sel, m1_sel, s0_sel, s1_sel, s2_sel, s3_sel, s4_sel, s5_sel, s6_sel, s7_sel;
-   wire 	 m0_ack, m1_ack, s0_ack, s1_ack, s2_ack, s3_ack, s4_ack, s5_ack, s6_ack, s7_ack;
-   wire 	 m0_stb, m1_stb, s0_stb, s1_stb, s2_stb, s3_stb, s4_stb, s5_stb, s6_stb, s7_stb;
-   wire 	 m0_cyc, m1_cyc, s0_cyc, s1_cyc, s2_cyc, s3_cyc, s4_cyc, s5_cyc, s6_cyc, s7_cyc;
-   wire 	 m0_err, m1_err, s0_err, s1_err, s2_err, s3_err, s4_err, s5_err, s6_err, s7_err;
-   wire 	 m0_rty, m1_rty, s0_rty, s1_rty, s2_rty, s3_rty, s4_rty, s5_rty, s6_rty, s7_rty;
-   wire 	 m0_we, m1_we, s0_we, s1_we, s2_we, s3_we, s4_we, s5_we, s6_we, s7_we;
-   
-   wb_1master #(.s0_addr_w(2),.s0_addr(2'b00),.s1_addr_w(2),.s1_addr(2'b01),
-		.s27_addr_w(4),.s2_addr(4'b1000),.s3_addr(4'b1001),.s4_addr(4'b1010),
-		.s5_addr(4'b1011),.s6_addr(4'b1100),.s7_addr(4'b1101),
-		.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),
-      .m0_adr_i(m0_adr),.m0_sel_i(m0_sel),.m0_we_i(m0_we),.m0_cyc_i(m0_cyc),.m0_stb_i(m0_stb),
-      .s0_dat_o(s0_dat_o),.s0_adr_o(s0_adr),.s0_sel_o(s0_sel),.s0_we_o	(s0_we),.s0_cyc_o(s0_cyc),.s0_stb_o(s0_stb),
-      .s0_dat_i(s0_dat_i),.s0_ack_i(s0_ack),.s0_err_i(s0_err),.s0_rty_i(s0_rty),
-      .s1_dat_o(s1_dat_o),.s1_adr_o(s1_adr),.s1_sel_o(s1_sel),.s1_we_o	(s1_we),.s1_cyc_o(s1_cyc),.s1_stb_o(s1_stb),
-      .s1_dat_i(s1_dat_i),.s1_ack_i(s1_ack),.s1_err_i(s1_err),.s1_rty_i(s1_rty),
-      .s2_dat_o(s2_dat_o),.s2_adr_o(s2_adr),.s2_sel_o(s2_sel),.s2_we_o	(s2_we),.s2_cyc_o(s2_cyc),.s2_stb_o(s2_stb),
-      .s2_dat_i(s2_dat_i),.s2_ack_i(s2_ack),.s2_err_i(s2_err),.s2_rty_i(s2_rty),
-      .s3_dat_o(s3_dat_o),.s3_adr_o(s3_adr),.s3_sel_o(s3_sel),.s3_we_o	(s3_we),.s3_cyc_o(s3_cyc),.s3_stb_o(s3_stb),
-      .s3_dat_i(s3_dat_i),.s3_ack_i(s3_ack),.s3_err_i(s3_err),.s3_rty_i(s3_rty),
-      .s4_dat_o(s4_dat_o),.s4_adr_o(s4_adr),.s4_sel_o(s4_sel),.s4_we_o	(s4_we),.s4_cyc_o(s4_cyc),.s4_stb_o(s4_stb),
-      .s4_dat_i(s4_dat_i),.s4_ack_i(s4_ack),.s4_err_i(s4_err),.s4_rty_i(s4_rty),
-      .s5_dat_o(s5_dat_o),.s5_adr_o(s5_adr),.s5_sel_o(s5_sel),.s5_we_o	(s5_we),.s5_cyc_o(s5_cyc),.s5_stb_o(s5_stb),
-      .s5_dat_i(s5_dat_i),.s5_ack_i(s5_ack),.s5_err_i(s5_err),.s5_rty_i(s5_rty),
-      .s6_dat_o(s6_dat_o),.s6_adr_o(s6_adr),.s6_sel_o(s6_sel),.s6_we_o	(s6_we),.s6_cyc_o(s6_cyc),.s6_stb_o(s6_stb),
-      .s6_dat_i(s6_dat_i),.s6_ack_i(s6_ack),.s6_err_i(s6_err),.s6_rty_i(s6_rty),
-      .s7_dat_o(s7_dat_o),.s7_adr_o(s7_adr),.s7_sel_o(s7_sel),.s7_we_o	(s7_we),.s7_cyc_o(s7_cyc),.s7_stb_o(s7_stb),
-      .s7_dat_i(s7_dat_i),.s7_ack_i(s7_ack),.s7_err_i(s7_err),.s7_rty_i(s7_rty)
-      );
-   
-   //////////////////////////////////////////////////////////////////////////////////////////
-   // Reset Controller
-   system_control sysctrl (.wb_clk_i(wb_clk),
-			   .ram_loader_rst_o(ram_loader_rst),
-			   .wb_rst_o(wb_rst),
-			   .ram_loader_done_i(ram_loader_done));
-   
-   // ///////////////////////////////////////////////////////////////////
-   // RAM Loader
-   wire 	 iram_wr_stb, iram_rd_stb, iram_wr_ack, iram_rd_ack, iram_ack, iram_wr_we;
-   wire [3:0] 	 iram_wr_sel;
-   wire [aw-1:0] iram_wr_adr, iram_rd_adr;
-   wire [dw-1:0] iram_wr_dat, iram_rd_dat;
-
-   wire 	 bus_error, proc_int;
-
-   assign 	 iram_rd_ack = ram_loader_done ? iram_ack : 1'b0;
-   assign 	 iram_wr_ack = ram_loader_done ? 1'b0 : iram_ack;
-   
-   ram_loader #(.AWIDTH(16))
-     ram_loader (.clk_i(wb_clk),.rst_i(ram_loader_rst),
-		 // CPLD Interface
-		 .cfg_clk_i(cpld_clk),
-		 .cfg_data_i(cpld_din),
-		 .start_o(cpld_start),
-		 .mode_o(cpld_mode),
-		 .done_o(cpld_done),
-		 .detached_i(cpld_detached),
-		 // Wishbone Interface
-		 .wb_dat_o(iram_wr_dat),.wb_adr_o(iram_wr_adr),
-		 .wb_stb_o(iram_wr_stb),.wb_cyc_o(),.wb_sel_o(iram_wr_sel),
-		 .wb_we_o(iram_wr_we),.wb_ack_i(iram_wr_ack),
-		 .ram_loader_done_o(ram_loader_done));
-
-   // Processor
-   aeMB_core_BE #(.ISIZ(16),.DSIZ(16))
-     aeMB (.sys_clk_i(wb_clk), .sys_rst_i(wb_rst),
-	   // Instruction Wishbone bus to I-RAM
-	   .iwb_stb_o(iram_rd_stb),.iwb_adr_o(iram_rd_adr),
-	   .iwb_dat_i(iram_rd_dat),.iwb_ack_i(iram_rd_ack),
-	   // 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),
-	   // Interrupts and exceptions
-	   .sys_int_i(proc_int),.sys_exc_i(bus_error) );
-
-   assign 	 bus_error = m0_err | m0_rty;
-   assign	 proc_int = 1'b0;
-   
-   // Dual Ported RAM -- D-Port is Slave #0 on main Wishbone
-   // I-port connects directly to processor and ram loader
-   
-   ram_wb_harvard #(.AWIDTH(14))
-     ID_ram (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),
-	     
-	     .iwb_adr_i(ram_loader_done ? iram_rd_adr : iram_wr_adr),.iwb_dat_i(iram_wr_dat),.iwb_dat_o(iram_rd_dat),
-	     .iwb_we_i(iram_wr_we),.iwb_ack_o(iram_ack),.iwb_stb_i(ram_loader_done ? iram_rd_stb : iram_wr_stb),
-	     .iwb_sel_i(ram_loader_done ? 4'b1111 : iram_wr_sel),
-	     
-	     .dwb_adr_i(s0_adr),.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));
-
-   assign 	 s0_err = 1'b0;
-   assign 	 s0_rty = 1'b0;
-
-   // Buffer Pool, slave #1
-   wire 	 rd0_read, rd0_ready, rd0_done, rd0_empty;
-   wire 	 rd1_read, rd1_ready, rd1_done, rd1_empty;
-   wire 	 rd2_read, rd2_ready, rd2_done, rd2_empty;
-   wire 	 rd3_read, rd3_ready, rd3_done, rd3_empty;
-   wire [31:0] 	 rd0_dat, rd1_dat, rd2_dat, rd3_dat;
-
-   wire 	 wr0_write, wr0_done, wr0_ready, wr0_full;
-   wire 	 wr1_write, wr1_done, wr1_ready, wr1_full;
-   wire 	 wr2_write, wr2_done, wr2_ready, wr2_full;
-   wire 	 wr3_write, wr3_done, wr3_ready, wr3_full;
-   wire [31:0] 	 wr0_dat, wr1_dat, wr2_dat, wr3_dat;
-
-/*   
-   buffer_pool buffer_pool
-     (.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_dat_o(s1_dat_i),.wb_ack_o(s1_ack),.wb_err_o(s1_err),.wb_rty_o(s1_rty),
-   
-      .stream_clk(dsp_clk),.stream_rst(dsp_rst),
-      // Write Interfaces
-      .wr0_dat_i(),.wr0_write_i(),.wr0_done_i(),.wr0_ready_o(),.wr0_full_o(),
-      .wr1_dat_i(),.wr1_write_i(),.wr1_done_i(),.wr1_ready_o(),.wr1_full_o(),
-      .wr2_dat_i(),.wr2_write_i(),.wr2_done_i(),.wr2_ready_o(),.wr2_full_o(),
-      .wr3_dat_i(),.wr3_write_i(),.wr3_done_i(),.wr3_ready_o(),.wr3_full_o(),
-      // Read Interfaces
-      .rd0_dat_o(rd0_dat),.rd0_read_i(rd0_read),.rd0_done_i(),.rd0_ready_o(rd0_ready),.rd0_empty_o(rd0_empty),
-      .rd1_dat_o(rd1_dat),.rd1_read_i(rd1_read),.rd1_done_i(),.rd1_ready_o(rd1_ready),.rd1_empty_o(rd1_empty),
-      .rd2_dat_o(rd2_dat),.rd2_read_i(rd2_read),.rd2_done_i(),.rd2_ready_o(rd2_ready),.rd2_empty_o(rd2_empty),
-      .rd3_dat_o(rd3_dat),.rd3_read_i(rd3_read),.rd3_done_i(),.rd3_ready_o(rd3_ready),.rd3_empty_o(rd3_empty)
-      );
-*/
-   // SPI -- Slave #2
-   spi_top shared_spi
-     (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.wb_adr_i(s2_adr),.wb_dat_i(s2_dat_o),.wb_dat_o(s2_dat_i),
-      .wb_sel_i(s2_sel),.wb_we_i(s2_we),.wb_stb_i(s2_stb),.wb_cyc_i(s2_cyc),.wb_ack_o(s2_ack),
-
-      .wb_err_o(s2_err),.wb_int_o(s2_int),
-      .ss_pad_o({sen_tx_db,sen_tx_adc,sen_tx_dac,sen_rx_db,sen_rx_adc,sen_rx_dac,sen_dac,sen_clk}),
-      .sclk_pad_o(sclk),.mosi_pad_o(mosi),.miso_pad_i(miso) );
-
-   assign 	 s2_rty = 1'b0;
-   
-   // I2C -- Slave #3
-   i2c_master_top #(.ARST_LVL(1)) 
-     i2c (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.arst_i(1'b0), 
-	  .wb_adr_i(s3_adr),.wb_dat_i(s3_dat_o),.wb_dat_o(s3_dat_i),
-	  .wb_we_i(s3_we),.wb_stb_i(s3_stb),.wb_cyc_i(s3_cyc),
-	  .wb_ack_o(s3_ack),.wb_inta_o(st_int),
-	  .scl_pad_i(scl_pad_i),.scl_pad_o(scl_pad_o),.scl_padoen_o(scl_pad_oen_o),
-	  .sda_pad_i(sda_pad_i),.sda_pad_o(sda_pad_o),.sda_padoen_o(sda_pad_oen_o) );
-   
-   assign 	 s3_err = 1'b0;
-   assign 	 s3_rty = 1'b0;
-
-   // GPIOs -- Slave #4
-   wire 	 s4_ack_a, s4_ack_b, s4_ack_c, s4_ack_d;
-   assign 	 s4_ack = s4_ack_a | s4_ack_b | s4_ack_c | s4_ack_d;
-
-   simple_gpio gpio_a(.clk_i(wb_clk),.rst_i(~wb_rst),
-		      .cyc_i(s4_cyc),.stb_i(s4_stb&s4_sel[0]),.adr_i(s4_adr[2]),.we_i(s4_we),
-		      .dat_i(s4_dat_o[7:0]),.dat_o(s4_dat_i[7:0]),.ack_o(s4_ack_a),
-		      .gpio(/* io_tx[7:0]*/) );
-   
-   simple_gpio gpio_b(.clk_i(wb_clk),.rst_i(~wb_rst),
-		      .cyc_i(s4_cyc),.stb_i(s4_stb&s4_sel[1]),.adr_i(s4_adr[2]),.we_i(s4_we),
-		      .dat_i(s4_dat_o[15:8]),.dat_o(s4_dat_i[15:8]),.ack_o(s4_ack_b),
-		      .gpio(/* io_tx[15:8] */) );
-   
-   simple_gpio gpio_c(.clk_i(wb_clk),.rst_i(~wb_rst),
-		      .cyc_i(s4_cyc),.stb_i(s4_stb&s4_sel[2]),.adr_i(s4_adr[2]),.we_i(s4_we),
-		      .dat_i(s4_dat_o[23:16]),.dat_o(s4_dat_i[23:16]),.ack_o(s4_ack_c),
-		      .gpio(/* io_rx[7:0] */) );
-   
-   simple_gpio gpio_d(.clk_i(wb_clk),.rst_i(~wb_rst),
-		      .cyc_i(s4_cyc),.stb_i(s4_stb&s4_sel[3]),.adr_i(s4_adr[2]),.we_i(s4_we),
-		      .dat_i(s4_dat_o[31:24]),.dat_o(s4_dat_i[31:24]),.ack_o(s4_ack_d),
-		      .gpio(/* io_rx[15:8]*/) );
-
-   assign 	 s4_err = 1'b0;
-   assign 	 s4_rty = 1'b0;
-   
-   // Output control lines, SLAVE #5
-   wire [7:0] 	 clock_outs, serdes_outs, adc_outs, misc_outs;
-   assign 	 {clock_ready, clk_en[1:0], clk_sel[1:0]} = clock_outs[4:0];
-   assign 	 {ser_enable, ser_prbsen, ser_loopen, ser_rx_en} = serdes_outs[3:0];
-   assign 	 { adc_oen_a, adc_pdn_a, adc_oen_b, adc_pdn_b } = adc_outs[3:0];
-   assign 	 {led2, led1} = misc_outs[1:0];
-   
-   wb_output_pins32 control_lines
-     (.wb_rst_i(wb_rst),.wb_clk_i(wb_clk),.wb_dat_i(s5_dat_o),.wb_dat_o(s5_dat_i),
-      .wb_we_i(s5_we),.wb_sel_i(s5_sel),.wb_stb_i(s5_stb),.wb_ack_o(s5_ack),.wb_cyc_i(s5_cyc),
-      .port_output( {clock_outs,serdes_outs,adc_outs,misc_outs} )  );
-
-   assign 	 s5_err = 1'b0;
-   assign 	 s5_rty = 1'b0;
-
-   // Ethernet slave, #6
-   eth_wrapper eth_wrapper
-     (.Reset(wb_rst),.Clk_125M(),.Clk_user(stream_clk),.Clk_reg(wb_clk),.Speed(),
-      .Gtx_clk(GMII_GTX_CLK),.Rx_clk(GMII_RX_CLK),.Tx_clk(GMII_TX_CLK),//used only in MII mode
-      .Tx_er(GMII_TX_ER),.Tx_en(GMII_TX_EN),.Txd(GMII_TXD),.Rx_er(GMII_RX_ER),
-      .Rx_dv(GMII_RX_DV),.Rxd(GMII_RXD),.Crs(GMII_CRS),.Col(GMII_COL),
-      .Mdio(MDIO),.Mdc(MDC),
-      // FIFO Interfaces
-      .wr_dat_o(),.wr_write_o(),.wr_done_o(),.wr_ready_i(),.wr_full_i(),
-      .rd_dat_i(),.rd_read_o(),.rd_done_o(),.rd_ready_i(),.rd_empty_i(),
-      // Wishbone
-      .wb_dat_i(s6_dat_o),.wb_dat_o(s6_dat_i),.wb_adr_i(s6_adr),.wb_stb_i(s6_stb),.wb_we_i(s6_we),.wb_ack_o(s6_ack)
-      );
-   
-   assign 	 s6_err = 1'b0;
-   assign 	 s6_rty = 1'b0;
-   
-   // Settings Bus -- Slave #7
-   settings_bus settings_bus
-     (.wb_clk(wb_clk),.wb_rst(wb_rst),.wb_adr_i(s7_adr),.wb_dat_i(s7_dat_o),
-      .wb_stb_i(s7_stb),.wb_we_i(s7_we),.wb_ack_o(s7_ack),
-      .sys_clk(dsp_clk),.strobe(set_stb),.addr(set_addr),.data(set_data));
-   
-   assign 	 s7_err = 1'b0;
-   assign 	 s7_rty = 1'b0;
-   assign 	 s7_dat_i = 32'd0;
-
-   ///////////////////////////////////////////////////////////////////////////
-   // DSP
-   reg [13:0] 	 adc_a_reg1, adc_b_reg1, adc_a_reg2, adc_b_reg2;
-   reg 		 adc_ovf_a_reg1, adc_ovf_a_reg2, adc_ovf_b_reg1, adc_ovf_b_reg2;
-   
-   always @(posedge dsp_clk)
-     begin
-	adc_a_reg1 <= adc_a;
-	adc_a_reg2 <= adc_a_reg1;
-	adc_b_reg1 <= adc_b;
-	adc_b_reg2 <= adc_b_reg1;
-	adc_ovf_a_reg1 <= adc_ovf_a;
-	adc_ovf_a_reg2 <= adc_ovf_a_reg1;
-	adc_ovf_b_reg1 <= adc_ovf_b;
-	adc_ovf_b_reg2 <= adc_ovf_b_reg1;
-     end // always @ (posedge dsp_clk)
-   
-   dsp_core_rx dsp_core_rx
-     (.clk(dsp_clk),.rst(dsp_rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .adc_a(adc_a),.adc_ovf_a(adc_ovf_a),.adc_b(adc_b),.adc_ovf_b(adc_ovf_b),
-      .rx_dat_o(wr1_dat),.rx_write_o(wr1_write),.rx_done_o(wr1_done),
-      .rx_ready_i(wr1_ready),.rx_full_i(wr1_full),
-      .overrun() );
-   
-   dsp_core_tx dsp_core_tx
-     (.clk(dsp_clk),.rst(dsp_rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .dac_a(dac_a),.dac_b(dac_b),
-      .tx_dat_i(rd1_dat),.tx_read_o(rd1_read),.tx_done_o(rd1_done),
-      .tx_ready_i(rd1_ready),.tx_empty_i(rd1_empty),
-      .underrun() );
-   
-   assign dsp_rst = wb_rst;
-
-   /////////////////////////////////////////////////////////////////////////////////////
-   // SERDES
-   serdes_tx serdes_tx
-     (.clk(dsp_clk),.rst(dsp_rst),
-      .ser_tx_clk(ser_tx_clk),.ser_t(ser_t),.ser_tklsb(ser_tklsb),.ser_tkmsb(ser_tkmsb),
-      .fifo_data_i(rd0_dat),.fifo_read_o(rd0_read),.fifo_done_o(rd0_done),
-      .fifo_ready_i(rd0_ready),.fifo_empty_i(rd0_empty)
-      );
-
-   serdes_rx serdes_rx
-     (.clk(dsp_clk),.rst(dsp_rst),
-      .ser_rx_clk(ser_rx_clk),.ser_r(ser_r),.ser_rklsb(ser_rklsb),.ser_rkmsb(ser_rkmsb),
-      .fifo_data_o(wr0_dat),.fifo_wr_o(wr0_write),.fifo_ready_i(wr0_ready),.fifo_done_i(wr0_done)
-      );
-   
-   // Debug Pins
-   wire [31:0]	debug1={{1'b0,ram_loader_done,clock_ready,dsp_clk,wb_clk,ram_loader_rst,wb_rst,dsp_rst},
-   			{1'b0,cpld_start,cpld_mode,cpld_done,1'b0,cpld_din,cpld_clk,cpld_detached},
-   			{8'hAF},
-   			{2'b0, clk_status, sen_dac, sen_clk, sclk, mosi, miso}};
-
-   wire [31:0]	debug_wb={{iram_wr_we,ram_loader_done,clock_ready,iram_wr_ack,iram_wr_stb,ram_loader_rst,wb_rst,dsp_rst},
-   			  {iram_rd_adr[15:8]},
-   			  {iram_rd_adr[7:0]},
-   			  {serdes_outs}};
-
-   assign 	io_rx = ser_debug[31:16];
-   assign 	io_tx = ser_debug[15:0];
- 
-   assign 	debug = debug_wb;
-   
-   assign 	debug_clk[0] = wb_clk;
-   assign 	debug_clk[1] = dsp_clk;	
-   
-endmodule // eth_test
-
-
-// Local Variables:
-// verilog-library-directories:("." "subdir" "subdir2")
-// verilog-library-files:("/home/matt/u2f/opencores/wb_conbus/rtl/verilog/wb_conbus_top.v")
-// verilog-library-extensions:(".v" ".h")
-// End:
diff --git a/fpga/usrp2/top/eth_test/eth_tb.v b/fpga/usrp2/top/eth_test/eth_tb.v
deleted file mode 100644
index 451ce1e7e..000000000
--- a/fpga/usrp2/top/eth_test/eth_tb.v
+++ /dev/null
@@ -1,257 +0,0 @@
-`timescale 1ns / 1ps
-//////////////////////////////////////////////////////////////////////////////////
-
-// Nearly everything is an input
-
-module eth_tb();
-   // Misc, debug
-   wire led1;
-   wire led2;
-   wire [31:0] debug;
-   wire [1:0]  debug_clk;
-   
-   // Expansion
-   wire        exp_pps_in;
-   wire        exp_pps_out;
-   
-   // GMII
-   //   GMII-CTRL
-   wire        GMII_COL;
-   wire        GMII_CRS;
-   
-   //   GMII-TX
-   wire [7:0]  GMII_TXD;
-   wire        GMII_TX_EN;
-   wire        GMII_TX_ER;
-   wire        GMII_GTX_CLK;
-   wire        GMII_TX_CLK;  // 100mbps clk
-   
-   //   GMII-RX
-   wire [7:0]  GMII_RXD;
-   wire        GMII_RX_CLK;
-   wire        GMII_RX_DV;
-   wire        GMII_RX_ER;
-   
-   //   GMII-Management
-   wire        MDIO;
-   wire        MDC;
-   wire        PHY_INTn;   // open drain
-   wire        PHY_RESETn;
-   wire        PHY_CLK;   // possibly use on-board osc
-   
-   // RAM
-   wire [17:0] RAM_D;
-   wire [18:0] RAM_A;
-   wire        RAM_CE1n;
-   wire        RAM_CENn;
-   wire        RAM_CLK;
-   wire        RAM_WEn;
-   wire        RAM_OEn;
-   wire        RAM_LDn;
-   
-   // SERDES
-   wire        ser_enable;
-   wire        ser_prbsen;
-   wire        ser_loopen;
-   wire        ser_rx_en;
-   
-   wire        ser_tx_clk;
-   wire [15:0] ser_t;
-   wire        ser_tklsb;
-   wire        ser_tkmsb;
-   
-   wire        ser_rx_clk;
-   wire [15:0] ser_r;
-   wire        ser_rklsb;
-   wire        ser_rkmsb;
-   
-   // CPLD interface
-   wire        cpld_din, cpld_clk, cpld_detached, cpld_start, cpld_mode, cpld_done;
-      
-   // ADC
-   wire [13:0] adc_a;
-   wire        adc_ovf_a;
-   wire        adc_oen_a;
-   wire        adc_pdn_a;
-   
-   wire [13:0] adc_b;
-   wire        adc_ovf_b;
-   wire        adc_oen_b;
-   wire        adc_pdn_b;
-   
-   // DAC
-   wire [15:0] dac_a;
-   wire [15:0] dac_b;
-   
-   // I2C
-   wire        SCL;
-   wire        SDA;
-   
-   // Clock Gen Control
-   wire [1:0]  clk_en;
-   wire [1:0]  clk_sel;
-   wire        clk_func;        // FIXME is an input to control the 9510
-   wire        clk_status;
-   
-   // Clocks
-   reg        clk_fpga;
-   wire        clk_to_mac;
-   wire        pps_in;
-   
-   // Generic SPI
-   wire        sclk, mosi, miso;   
-   wire        sen_clk;
-   wire        sen_dac;
-   wire        sen_tx_db;
-   wire        sen_tx_adc;
-   wire        sen_tx_dac;
-   wire        sen_rx_db;
-   wire        sen_rx_adc;
-   wire        sen_rx_dac;
-   
-   // GPIO to DBoards
-   wire [15:0] io_tx;
-   wire [15:0] io_rx;
-   
-   wire        wb_clk, wb_rst;
-   wire        start, clock_ready;
-   
-   reg 	       aux_clk;
-
-   initial aux_clk= 1'b0;
-   always #25 aux_clk = ~aux_clk;
-   
-   initial clk_fpga = 1'bx;
-   initial #3007 clk_fpga = 1'b0;
-   always #7 clk_fpga = ~clk_fpga;
-
-
-   wire        div_clk;
-   reg [2:0]   div_ctr = 0;
-   
-   always @(posedge clk_fpga or negedge clk_fpga)
-     if(div_ctr==5)
-       div_ctr = 0;
-     else
-       div_ctr = div_ctr + 1;
-   assign      div_clk = (div_ctr == 0) | (div_ctr == 1) | (div_ctr == 2);
-   
-   assign      dsp_clk = clk_fpga;
-   assign      wb_clk = clock_ready ? div_clk : aux_clk;
-
-   initial
-     $monitor($time, ,clock_ready);
-   
-   initial begin
-      $dumpfile("eth_tb.vcd");
-      $dumpvars(0,eth_tb);
-   end
-
-   initial #10000000 $finish;
-
-   cpld_model 
-     cpld_model (.aux_clk(aux_clk),.start(cpld_start),.mode(cpld_mode),.done(cpld_done),
-		 .dout(cpld_din),.sclk(cpld_clk),.detached(cpld_detached));
-   
-   eth_sim_top eth_sim_top(.dsp_clk		(dsp_clk),
-			   .wb_clk            (wb_clk),
-			   .clock_ready	(clock_ready),
-			   .clk_to_mac	(clk_to_mac),
-			   .pps_in		(pps_in),
-			   .led1		(led1),
-			   .led2		(led2),
-			   .debug		(debug[31:0]),
-			   .debug_clk		(debug_clk[1:0]),
-			   .exp_pps_in	(exp_pps_in),
-			   .exp_pps_out	(exp_pps_out),
-			   .GMII_COL		(GMII_COL),
-			   .GMII_CRS		(GMII_CRS),
-			   .GMII_TXD		(GMII_TXD[7:0]),
-			   .GMII_TX_EN	(GMII_TX_EN),
-			   .GMII_TX_ER	(GMII_TX_ER),
-			   .GMII_GTX_CLK	(GMII_GTX_CLK),
-			   .GMII_TX_CLK	(GMII_TX_CLK),
-			   .GMII_RXD		(GMII_RXD[7:0]),
-			   .GMII_RX_CLK	(GMII_RX_CLK),
-			   .GMII_RX_DV	(GMII_RX_DV),
-			   .GMII_RX_ER	(GMII_RX_ER),
-			   .MDIO		(MDIO),
-			   .MDC		(MDC),
-			   .PHY_INTn		(PHY_INTn),
-			   .PHY_RESETn	(PHY_RESETn),
-			   .PHY_CLK		(PHY_CLK),
-			   .ser_enable	(ser_enable),
-			   .ser_prbsen	(ser_prbsen),
-			   .ser_loopen	(ser_loopen),
-			   .ser_rx_en		(ser_rx_en),
-			   .ser_tx_clk	(ser_tx_clk),
-			   .ser_t		(ser_t[15:0]),
-			   .ser_tklsb		(ser_tklsb),
-			   .ser_tkmsb		(ser_tkmsb),
-			   .ser_rx_clk	(ser_rx_clk),
-			   .ser_r		(ser_r[15:0]),
-			   .ser_rklsb		(ser_rklsb),
-			   .ser_rkmsb		(ser_rkmsb),
-			   .cpld_start	(cpld_start),
-			   .cpld_mode		(cpld_mode),
-			   .cpld_done		(cpld_done),
-			   .cpld_din		(cpld_din),
-			   .cpld_clk		(cpld_clk),
-			   .cpld_detached	(cpld_detached),
-			   .adc_a		(adc_a[13:0]),
-			   .adc_ovf_a		(adc_ovf_a),
-			   .adc_oen_a		(adc_oen_a),
-			   .adc_pdn_a		(adc_pdn_a),
-			   .adc_b		(adc_b[13:0]),
-			   .adc_ovf_b		(adc_ovf_b),
-			   .adc_oen_b		(adc_oen_b),
-			   .adc_pdn_b		(adc_pdn_b),
-			   .dac_a		(dac_a[15:0]),
-			   .dac_b		(dac_b[15:0]),
-			   .scl_pad_i		(scl_pad_i),
-			   .scl_pad_o		(scl_pad_o),
-			   .scl_pad_oen_o	(scl_pad_oen_o),
-			   .sda_pad_i		(sda_pad_i),
-			   .sda_pad_o		(sda_pad_o),
-			   .sda_pad_oen_o	(sda_pad_oen_o),
-			   .clk_en		(clk_en[1:0]),
-			   .clk_sel		(clk_sel[1:0]),
-			   .clk_func		(clk_func),
-			   .clk_status	(clk_status),
-			   .sclk		(sclk),
-			   .mosi		(mosi),
-			   .miso		(miso),
-			   .sen_clk		(sen_clk),
-			   .sen_dac		(sen_dac),
-			   .sen_tx_db		(sen_tx_db),
-			   .sen_tx_adc	(sen_tx_adc),
-			   .sen_tx_dac	(sen_tx_dac),
-			   .sen_rx_db		(sen_rx_db),
-			   .sen_rx_adc	(sen_rx_adc),
-			   .sen_rx_dac	(sen_rx_dac),
-			   .io_tx		(io_tx[15:0]),
-			   .io_rx		(io_rx[15:0]));
-   
-   // Experimental printf-like function
-   always @(posedge wb_clk)
-     begin
-	if((eth_sim_top.m0_we == 1'd1)&&(eth_sim_top.m0_adr == 16'hC000))
-	  $write("%x",eth_sim_top.m0_dat_i);
-	if((eth_sim_top.m0_we == 1'd1)&&(eth_sim_top.m0_adr == 16'hC100))
-	  $display("%x",eth_sim_top.m0_dat_i);
-	if((eth_sim_top.m0_we == 1'd1)&&(eth_sim_top.m0_adr == 16'hC004))
-	  $write("%c",eth_sim_top.m0_dat_i);
-	if((eth_sim_top.m0_we == 1'd1)&&(eth_sim_top.m0_adr == 16'hC104))
-	  $display("%c",eth_sim_top.m0_dat_i);
-	if((eth_sim_top.m0_we == 1'd1)&&(eth_sim_top.m0_adr == 16'hC008))
-	  $display("");
-     end
-	
-
-endmodule // u2_sim_top
-
-// Local Variables:
-// verilog-library-directories:("." "subdir" "subdir2")
-// verilog-library-files:("/home/matt/u2f/top/u2_basic/u2_basic.v")
-// verilog-library-extensions:(".v" ".h")
-// End:
diff --git a/fpga/usrp2/top/safe_u2plus/.gitignore b/fpga/usrp2/top/safe_u2plus/.gitignore
deleted file mode 100644
index a96f0be92..000000000
--- a/fpga/usrp2/top/safe_u2plus/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-build*
-*impact*
diff --git a/fpga/usrp2/top/safe_u2plus/Makefile b/fpga/usrp2/top/safe_u2plus/Makefile
deleted file mode 100644
index b72241050..000000000
--- a/fpga/usrp2/top/safe_u2plus/Makefile
+++ /dev/null
@@ -1,245 +0,0 @@
-#
-# Copyright 2008 Ettus Research LLC
-# 
-# This file is part of GNU Radio
-# 
-# GNU Radio 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, or (at your option)
-# any later version.
-# 
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-# 
-
-##################################################
-# xtclsh Shell and tcl Script Path
-##################################################
-#XTCLSH := /opt/Xilinx/10.1/ISE/bin/lin/xtclsh
-XTCLSH := xtclsh
-ISE_HELPER := ../tcl/ise_helper.tcl
-
-##################################################
-# Project Setup
-##################################################
-BUILD_DIR := build/
-export TOP_MODULE := safe_u2plus
-export PROJ_FILE := $(BUILD_DIR)$(TOP_MODULE).ise
-
-##################################################
-# Project Properties
-##################################################
-export PROJECT_PROPERTIES := \
-family "Spartan-3A DSP" \
-device xc3sd3400a \
-package fg676 \
-speed -5 \
-top_level_module_type "HDL" \
-synthesis_tool "XST (VHDL/Verilog)" \
-simulator "ISE Simulator (VHDL/Verilog)" \
-"Preferred Language" "Verilog" \
-"Enable Message Filtering" FALSE \
-"Display Incremental Messages" FALSE 
-
-##################################################
-# Sources
-##################################################
-export SOURCE_ROOT := ../../../
-export SOURCES := \
-control_lib/CRC16_D16.v \
-control_lib/atr_controller.v \
-control_lib/bin2gray.v \
-control_lib/dcache.v \
-control_lib/decoder_3_8.v \
-control_lib/dpram32.v \
-control_lib/gray2bin.v \
-control_lib/gray_send.v \
-control_lib/icache.v \
-control_lib/mux4.v \
-control_lib/mux8.v \
-control_lib/nsgpio.v \
-control_lib/ram_2port.v \
-control_lib/ram_harv_cache.v \
-control_lib/ram_loader.v \
-control_lib/setting_reg.v \
-control_lib/settings_bus.v \
-control_lib/srl.v \
-control_lib/system_control.v \
-control_lib/wb_1master.v \
-control_lib/wb_readback_mux.v \
-control_lib/simple_uart.v \
-control_lib/simple_uart_tx.v \
-control_lib/simple_uart_rx.v \
-control_lib/oneshot_2clk.v \
-control_lib/sd_spi.v \
-control_lib/sd_spi_wb.v \
-control_lib/wb_bridge_16_32.v \
-control_lib/reset_sync.v \
-simple_gemac/simple_gemac_wrapper.v \
-simple_gemac/simple_gemac.v \
-simple_gemac/simple_gemac_wb.v \
-simple_gemac/simple_gemac_tx.v \
-simple_gemac/simple_gemac_rx.v \
-simple_gemac/crc.v \
-simple_gemac/delay_line.v \
-simple_gemac/flow_ctrl_tx.v \
-simple_gemac/flow_ctrl_rx.v \
-simple_gemac/address_filter.v \
-simple_gemac/ll8_to_txmac.v \
-simple_gemac/rxmac_to_ll8.v \
-simple_gemac/miim/eth_miim.v \
-simple_gemac/miim/eth_clockgen.v \
-simple_gemac/miim/eth_outputcontrol.v \
-simple_gemac/miim/eth_shiftreg.v \
-control_lib/newfifo/buffer_int.v \
-control_lib/newfifo/buffer_pool.v \
-control_lib/newfifo/fifo_2clock.v \
-control_lib/newfifo/fifo_2clock_cascade.v \
-control_lib/newfifo/ll8_shortfifo.v \
-control_lib/newfifo/ll8_to_fifo36.v \
-control_lib/newfifo/fifo_short.v \
-control_lib/newfifo/fifo_long.v \
-control_lib/newfifo/fifo_cascade.v \
-control_lib/newfifo/fifo36_to_ll8.v \
-control_lib/longfifo.v \
-control_lib/shortfifo.v \
-control_lib/medfifo.v \
-coregen/fifo_xlnx_2Kx36_2clk.v \
-coregen/fifo_xlnx_2Kx36_2clk.xco \
-coregen/fifo_xlnx_512x36_2clk.v \
-coregen/fifo_xlnx_512x36_2clk.xco \
-coregen/fifo_xlnx_64x36_2clk.v \
-coregen/fifo_xlnx_64x36_2clk.xco \
-opencores/8b10b/decode_8b10b.v \
-opencores/8b10b/encode_8b10b.v \
-opencores/aemb/rtl/verilog/aeMB_bpcu.v \
-opencores/aemb/rtl/verilog/aeMB_core_BE.v \
-opencores/aemb/rtl/verilog/aeMB_ctrl.v \
-opencores/aemb/rtl/verilog/aeMB_edk32.v \
-opencores/aemb/rtl/verilog/aeMB_ibuf.v \
-opencores/aemb/rtl/verilog/aeMB_regf.v \
-opencores/aemb/rtl/verilog/aeMB_xecu.v \
-opencores/i2c/rtl/verilog/i2c_master_bit_ctrl.v \
-opencores/i2c/rtl/verilog/i2c_master_byte_ctrl.v \
-opencores/i2c/rtl/verilog/i2c_master_defines.v \
-opencores/i2c/rtl/verilog/i2c_master_top.v \
-opencores/i2c/rtl/verilog/timescale.v \
-opencores/simple_pic/rtl/simple_pic.v \
-opencores/spi/rtl/verilog/spi_clgen.v \
-opencores/spi/rtl/verilog/spi_defines.v \
-opencores/spi/rtl/verilog/spi_shift.v \
-opencores/spi/rtl/verilog/spi_top.v \
-opencores/spi/rtl/verilog/timescale.v \
-sdr_lib/acc.v \
-sdr_lib/add2.v \
-sdr_lib/add2_and_round.v \
-sdr_lib/add2_and_round_reg.v \
-sdr_lib/add2_reg.v \
-sdr_lib/cic_dec_shifter.v \
-sdr_lib/cic_decim.v \
-sdr_lib/cic_int_shifter.v \
-sdr_lib/cic_interp.v \
-sdr_lib/cic_strober.v \
-sdr_lib/clip.v \
-sdr_lib/clip_reg.v \
-sdr_lib/cordic.v \
-sdr_lib/cordic_z24.v \
-sdr_lib/cordic_stage.v \
-sdr_lib/dsp_core_rx.v \
-sdr_lib/dsp_core_tx.v \
-sdr_lib/hb_dec.v \
-sdr_lib/hb_interp.v \
-sdr_lib/round.v \
-sdr_lib/round_reg.v \
-sdr_lib/rx_control.v \
-sdr_lib/rx_dcoffset.v \
-sdr_lib/sign_extend.v \
-sdr_lib/small_hb_dec.v \
-sdr_lib/small_hb_int.v \
-sdr_lib/tx_control.v \
-serdes/serdes.v \
-serdes/serdes_fc_rx.v \
-serdes/serdes_fc_tx.v \
-serdes/serdes_rx.v \
-serdes/serdes_tx.v \
-timing/time_receiver.v \
-timing/time_sender.v \
-timing/time_sync.v \
-timing/timer.v \
-top/u2_core/u2_core.v \
-top/u2plus/capture_ddrlvds.v \
-top/safe_u2plus/u2plus.ucf \
-top/safe_u2plus/safe_u2plus.v 
-
-##################################################
-# Process Properties
-##################################################
-export SYNTHESIZE_PROPERTIES := \
-"Number of Clock Buffers" 6 \
-"Pack I/O Registers into IOBs" Yes \
-"Optimization Effort" High \
-"Optimize Instantiated Primitives" TRUE \
-"Register Balancing" Yes \
-"Use Clock Enable" Auto \
-"Use Synchronous Reset" Auto \
-"Use Synchronous Set" Auto
-
-export TRANSLATE_PROPERTIES := \
-"Macro Search Path" "$(shell pwd)/../../coregen/"
-
-export MAP_PROPERTIES := \
-"Allow Logic Optimization Across Hierarchy" TRUE \
-"Map to Input Functions" 4 \
-"Optimization Strategy (Cover Mode)" Speed \
-"Pack I/O Registers/Latches into IOBs" "For Inputs and Outputs" \
-"Perform Timing-Driven Packing and Placement" TRUE \
-"Map Effort Level" High \
-"Extra Effort" Normal \
-"Combinatorial Logic Optimization" TRUE \
-"Register Duplication" TRUE
-
-export PLACE_ROUTE_PROPERTIES := \
-"Place & Route Effort Level (Overall)" High 
-
-export STATIC_TIMING_PROPERTIES := \
-"Number of Paths in Error/Verbose Report" 10 \
-"Report Type" "Error Report"
-
-export GEN_PROG_FILE_PROPERTIES := \
-"Configuration Rate" 6 \
-"Create Binary Configuration File" TRUE \
-"Done (Output Events)" 5 \
-"Enable Bitstream Compression" TRUE \
-"Enable Outputs (Output Events)" 6 
-
-export SIM_MODEL_PROPERTIES := ""
-
-##################################################
-# Make Options
-##################################################
-all:
-	@echo make proj, check, synth, bin, or clean
-
-proj:
-	PROCESS_RUN="" $(XTCLSH) $(ISE_HELPER)	
-
-check:
-	PROCESS_RUN="Check Syntax" $(XTCLSH) $(ISE_HELPER)	
-
-synth:
-	PROCESS_RUN="Synthesize - XST" $(XTCLSH) $(ISE_HELPER)	
-
-bin:
-	PROCESS_RUN="Generate Programming File" $(XTCLSH) $(ISE_HELPER)		
-
-clean:
-	rm -rf $(BUILD_DIR)
-
-
diff --git a/fpga/usrp2/top/safe_u2plus/safe_u2plus.v b/fpga/usrp2/top/safe_u2plus/safe_u2plus.v
deleted file mode 100644
index dca9688c5..000000000
--- a/fpga/usrp2/top/safe_u2plus/safe_u2plus.v
+++ /dev/null
@@ -1,23 +0,0 @@
-`timescale 1ns / 1ps
-//////////////////////////////////////////////////////////////////////////////////
-
-module safe_u2plus
-  (
-   input CLK_FPGA_P, input CLK_FPGA_N,  // Diff
-   output [5:1] leds,  // LED4 is shared w/INIT_B
-   output ETH_LED
-   );
-
-   wire   clk_fpga;
-   
-   IBUFGDS clk_fpga_pin (.O(clk_fpga),.I(CLK_FPGA_P),.IB(CLK_FPGA_N));
-   defparam 	clk_fpga_pin.IOSTANDARD = "LVPECL_25";
-
-   reg [31:0] 	ctr;
-
-   always @(posedge clk_fpga)
-     ctr <= ctr + 1;
-
-   assign {leds,ETH_LED} = ~ctr[29:24];
-   
-endmodule // safe_u2plus
diff --git a/fpga/usrp2/top/safe_u2plus/u2plus.ucf b/fpga/usrp2/top/safe_u2plus/u2plus.ucf
deleted file mode 100755
index 0a9460d86..000000000
--- a/fpga/usrp2/top/safe_u2plus/u2plus.ucf
+++ /dev/null
@@ -1,401 +0,0 @@
-## Main 100 MHz Clock
-NET "CLK_FPGA_P"  LOC = "AA13"  ;
-NET "CLK_FPGA_N"  LOC = "Y13"  ;
-
-## ADC
-#NET "ADC_clkout_p"  LOC = "P1"  ;
-#NET "ADC_clkout_n"  LOC = "P2"  ;
-#NET "ADCA_12_p"  LOC = "Y1"  ;
-#NET "ADCA_12_n"  LOC = "Y2"  ;
-#NET "ADCA_10_p"  LOC = "W3"  ;
-#NET "ADCA_10_n"  LOC = "W4"  ;
-#NET "ADCA_8_p"  LOC = "T7"  ;
-#NET "ADCA_8_n"  LOC = "U6"  ;
-#NET "ADCA_6_p"  LOC = "U5"  ;
-#NET "ADCA_6_n"  LOC = "V5"  ;
-#NET "ADCA_4_p"  LOC = "T10"  ;
-#NET "ADCA_4_n"  LOC = "T9"  ;
-#NET "ADCA_2_p"  LOC = "V1"  ;
-#NET "ADCA_2_n"  LOC = "V2"  ;
-#NET "ADCA_0_p"  LOC = "R8"  ;
-#NET "ADCA_0_n"  LOC = "R7"  ;
-#NET "ADCB_2_p"  LOC = "U7"  ;
-#NET "ADCB_2_n"  LOC = "U8"  ;
-#NET "ADCB_0_p"  LOC = "AA2"  ;
-#NET "ADCB_0_n"  LOC = "AA3"  ;
-#NET "ADCB_4_p"  LOC = "AE1"  ;
-#NET "ADCB_4_n"  LOC = "AE2"  ;
-#NET "ADCB_6_p"  LOC = "W1"  ;
-#NET "ADCB_6_n"  LOC = "W2"  ;
-#NET "ADCB_8_p"  LOC = "U3"  ;
-#NET "ADCB_8_n"  LOC = "V4"  ;
-#NET "ADCB_10_p"  LOC = "J1"  ;
-#NET "ADCB_10_n"  LOC = "K1"  ;
-#NET "ADCB_12_p"  LOC = "J3"  ;
-#NET "ADCB_12_n"  LOC = "J2"  ;
-
-## DAC
-#NET "DAC_LOCK"  LOC = "P4"  ;
-#NET "DACA<0>"  LOC = "P8"  ;
-#NET "DACA<1>"  LOC = "P9"  ;
-#NET "DACA<2>"  LOC = "R5"  ;
-#NET "DACA<3>"  LOC = "R6"  ;
-#NET "DACA<4>"  LOC = "P7"  ;
-#NET "DACA<5>"  LOC = "P6"  ;
-#NET "DACA<6>"  LOC = "T3"  ;
-#NET "DACA<7>"  LOC = "T4"  ;
-#NET "DACA<8>"  LOC = "R3"  ;
-#NET "DACA<9>"  LOC = "R4"  ;
-#NET "DACA<10>"  LOC = "R2"  ;
-#NET "DACA<11>"  LOC = "N1"  ;
-#NET "DACA<12>"  LOC = "N2"  ;
-#NET "DACA<13>"  LOC = "N5"  ;
-#NET "DACA<14>"  LOC = "N4"  ;
-#NET "DACA<15>"  LOC = "M2"  ;
-#NET "DACB<0>"  LOC = "M5"  ;
-#NET "DACB<1>"  LOC = "M6"  ;
-#NET "DACB<2>"  LOC = "M4"  ;
-#NET "DACB<3>"  LOC = "M3"  ;
-#NET "DACB<4>"  LOC = "M8"  ;
-#NET "DACB<5>"  LOC = "M7"  ;
-#NET "DACB<6>"  LOC = "L4"  ;
-#NET "DACB<7>"  LOC = "L3"  ;
-#NET "DACB<8>"  LOC = "K3"  ;
-#NET "DACB<9>"  LOC = "K2"  ;
-#NET "DACB<10>"  LOC = "K5"  ;
-#NET "DACB<11>"  LOC = "K4"  ;
-#NET "DACB<12>"  LOC = "M10"  ;
-#NET "DACB<13>"  LOC = "M9"  ;
-#NET "DACB<14>"  LOC = "J5"  ;
-#NET "DACB<15>"  LOC = "J4"  ;
-
-## TX DB GPIO
-#NET "io_tx<15>"  LOC = "K6"  ;
-#NET "io_tx<14>"  LOC = "L7"  ;
-#NET "io_tx<13>"  LOC = "H2"  ;
-#NET "io_tx<12>"  LOC = "H1"  ;
-#NET "io_tx<11>"  LOC = "L10"  ;
-#NET "io_tx<10>"  LOC = "L9"  ;
-#NET "io_tx<9>"  LOC = "G3"  ;
-#NET "io_tx<8>"  LOC = "F3"  ;
-#NET "io_tx<7>"  LOC = "K7"  ;
-#NET "io_tx<6>"  LOC = "J6"  ;
-#NET "io_tx<5>"  LOC = "E1"  ;
-#NET "io_tx<4>"  LOC = "F2"  ;
-#NET "io_tx<3>"  LOC = "J7"  ;
-#NET "io_tx<2>"  LOC = "H6"  ;
-#NET "io_tx<1>"  LOC = "F5"  ;
-#NET "io_tx<0>"  LOC = "G4"  ;
-
-## RX DB GPIO
-#NET "io_rx<15>"  LOC = "AD1"  ;
-#NET "io_rx<14>"  LOC = "AD2"  ;
-#NET "io_rx<13>"  LOC = "AC2"  ;
-#NET "io_rx<12>"  LOC = "AC3"  ;
-#NET "io_rx<11>"  LOC = "W7"  ;
-#NET "io_rx<10>"  LOC = "W6"  ;
-#NET "io_rx<9>"  LOC = "U9"  ;
-#NET "io_rx<8>"  LOC = "V8"  ;
-#NET "io_rx<7>"  LOC = "AB1"  ;
-#NET "io_rx<6>"  LOC = "AC1"  ;
-#NET "io_rx<5>"  LOC = "V7"  ;
-#NET "io_rx<4>"  LOC = "V6"  ;
-#NET "io_rx<3>"  LOC = "Y5"  ;
-#NET "io_rx<2>"  LOC = "R10"  ;
-#NET "io_rx<1>"  LOC = "R1"  ;
-#NET "io_rx<0>"  LOC = "M1"  ;
-
-## MISC
-NET "leds<5>"  LOC = "AF25"  ;
-NET "leds<4>"  LOC = "AE25"  ;
-NET "leds<3>"  LOC = "AF23"  ;
-NET "leds<2>"  LOC = "AE23"  ;
-NET "leds<1>"  LOC = "AB18"  ;
-#NET "FPGA_RESET"  LOC = "K24"  ;
-
-## Debug
-#NET "debug_clk<0>"  LOC = "AA10"  ;
-#NET "debug_clk<1>"  LOC = "AD11"  ;
-#NET "debug<0>"  LOC = "AC19"  ;
-#NET "debug<1>"  LOC = "AF20"  ;
-#NET "debug<2>"  LOC = "AE20"  ;
-#NET "debug<3>"  LOC = "AC16"  ;
-#NET "debug<4>"  LOC = "AB16"  ;
-#NET "debug<5>"  LOC = "AF19"  ;
-#NET "debug<6>"  LOC = "AE19"  ;
-#NET "debug<7>"  LOC = "V15"  ;
-#NET "debug<8>"  LOC = "U15"  ;
-#NET "debug<9>"  LOC = "AE17"  ;
-#NET "debug<10>"  LOC = "AD17"  ;
-#NET "debug<11>"  LOC = "V14"  ;
-#NET "debug<12>"  LOC = "W15"  ;
-#NET "debug<13>"  LOC = "AC15"  ;
-#NET "debug<14>"  LOC = "AD14"  ;
-#NET "debug<15>"  LOC = "AC14"  ;
-#NET "debug<16>"  LOC = "AC11"  ;
-#NET "debug<17>"  LOC = "AB12"  ;
-#NET "debug<18>"  LOC = "AC12"  ;
-#NET "debug<19>"  LOC = "V13"  ;
-#NET "debug<20>"  LOC = "W13"  ;
-#NET "debug<21>"  LOC = "AE8"  ;
-#NET "debug<22>"  LOC = "AF8"  ;
-#NET "debug<23>"  LOC = "V12"  ;
-#NET "debug<24>"  LOC = "W12"  ;
-#NET "debug<25>"  LOC = "AB9"  ;
-#NET "debug<26>"  LOC = "AC9"  ;
-#NET "debug<27>"  LOC = "AC8"  ;
-#NET "debug<28>"  LOC = "AB7"  ;
-#NET "debug<29>"  LOC = "V11"  ;
-#NET "debug<30>"  LOC = "U11"  ;
-#NET "debug<31>"  LOC = "Y10"  ;
-
-## UARTS
-#NET "TXD<3>"  LOC = "AD20"  ;
-#NET "TXD<2>"  LOC = "AC20"  ;
-#NET "TXD<1>"  LOC = "AD19"  ;
-#NET "RXD<3>"  LOC = "AF17"  ;
-#NET "RXD<2>"  LOC = "AF15"  ;
-#NET "RXD<1>"  LOC = "AD12"  ;
-
-## AD9510
-#NET "CLK_STATUS"  LOC = "AD22"  ;
-#NET "CLK_FUNC"  LOC = "AC21"  ;
-#NET "clk_sel<0>"  LOC = "AE21"  ;
-#NET "clk_sel<1>"  LOC = "AD21"  ;
-#NET "clk_en<1>"  LOC = "AA17"  ;
-#NET "clk_en<0>"  LOC = "Y17"  ;
-
-## I2C
-#NET "SDA"  LOC = "V16"  ;
-#NET "SCL"  LOC = "U16"  ;
-
-## Timing
-#NET "PPS_IN"  LOC = "AB6"  ;
-#NET "PPS2_IN"  LOC = "AA20"  ;
-
-## SPI
-#NET "SEN_CLK"  LOC = "AA18"  ;
-#NET "MOSI_CLK"  LOC = "W17"  ;
-#NET "SCLK_CLK"  LOC = "V17"  ;
-#NET "MISO_CLK"  LOC = "AC10"  ;
-
-#NET "SEN_DAC"  LOC = "AE7"  ;
-#NET "SCLK_DAC"  LOC = "AF5"  ;
-#NET "MOSI_DAC"  LOC = "AE6"  ;
-#NET "MISO_DAC"  LOC = "Y3"  ;
-
-#NET "SCLK_ADC"  LOC = "B1"  ;
-#NET "MOSI_ADC"  LOC = "J8"  ;
-#NET "SEN_ADC"  LOC = "J9"  ;
-
-#NET "MOSI_TX_ADC"  LOC = "V10"  ;
-#NET "SEN_TX_ADC"  LOC = "W10"  ;
-#NET "SCLK_TX_ADC"  LOC = "AC6"  ;
-#NET "MISO_TX_ADC"  LOC = "G1"  ;
-
-#NET "MOSI_TX_DAC"  LOC = "AD6"  ;
-#NET "SEN_TX_DAC"  LOC = "AE4"  ;
-#NET "SCLK_TX_DAC"  LOC = "AF4"  ;
-
-#NET "SCLK_TX_DB"  LOC = "AE3"  ;
-#NET "MOSI_TX_DB"  LOC = "AF3"  ;
-#NET "SEN_TX_DB"  LOC = "W9"  ;
-#NET "MISO_TX_DB"  LOC = "AA5"  ;
-
-#NET "MOSI_RX_ADC"  LOC = "E3"  ;
-#NET "SCLK_RX_ADC"  LOC = "F4"  ;
-#NET "SEN_RX_ADC"  LOC = "D3"  ;
-#NET "MISO_RX_ADC"  LOC = "C1"  ;
-
-#NET "SCLK_RX_DAC"  LOC = "E4"  ;
-#NET "SEN_RX_DAC"  LOC = "K9"  ;
-#NET "MOSI_RX_DAC"  LOC = "K8"  ;
-
-#NET "SCLK_RX_DB"  LOC = "G6"  ;
-#NET "MOSI_RX_DB"  LOC = "H7"  ;
-#NET "SEN_RX_DB"  LOC = "B2"  ;
-#NET "MISO_RX_DB"  LOC = "H4"  ;
-
-## ETH PHY
-#NET "CLK_TO_MAC"  LOC = "P26"  ;
-
-#NET "GMII_TXD<7>"  LOC = "G21"  ;
-#NET "GMII_TXD<6>"  LOC = "C26"  ;
-#NET "GMII_TXD<5>"  LOC = "C25"  ;
-#NET "GMII_TXD<4>"  LOC = "J21"  ;
-#NET "GMII_TXD<3>"  LOC = "H21"  ;
-#NET "GMII_TXD<2>"  LOC = "D25"  ;
-#NET "GMII_TXD<1>"  LOC = "D24"  ;
-#NET "GMII_TXD<0>"  LOC = "E26"  ;
-#NET "GMII_TX_EN"  LOC = "D26"  ;
-#NET "GMII_TX_ER"  LOC = "J19"  ;
-#NET "GMII_GTX_CLK"  LOC = "J20"  ;
-#NET "GMII_TX_CLK"  LOC = "P25"  ;
-
-#NET "GMII_RX_CLK"  LOC = "P21"  ;
-#NET "GMII_RXD<7>"  LOC = "G22"  ;
-#NET "GMII_RXD<6>"  LOC = "K19"  ;
-#NET "GMII_RXD<5>"  LOC = "K18"  ;
-#NET "GMII_RXD<4>"  LOC = "E24"  ;
-#NET "GMII_RXD<3>"  LOC = "F23"  ;
-#NET "GMII_RXD<2>"  LOC = "L18"  ;
-#NET "GMII_RXD<1>"  LOC = "L17"  ;
-#NET "GMII_RXD<0>"  LOC = "F25"  ;
-#NET "GMII_RX_DV"  LOC = "F24"  ;
-#NET "GMII_RX_ER"  LOC = "L20"  ;
-#NET "GMII_CRS"  LOC = "K20"  ;
-#NET "GMII_COL"  LOC = "G23"  ;
-
-#NET "PHY_INTn"  LOC = "L22"  ;
-#NET "MDIO"  LOC = "K21"  ;
-#NET "MDC"  LOC = "J23"  ;
-#NET "PHY_RESETn"  LOC = "J22"  ;
-NET "ETH_LED"  LOC = "H20"  ;
-
-## MIMO Interface
-#NET "exp_time_out_p"  LOC = "Y14"  ;
-#NET "exp_time_out_n"  LOC = "AA14"  ;
-#NET "exp_time_in_p"  LOC = "N18"  ;
-#NET "exp_time_in_n"  LOC = "N17"  ;
-#NET "exp_user_out_p"  LOC = "AF14"  ;
-#NET "exp_user_out_n"  LOC = "AE14"  ;
-#NET "exp_user_in_p"  LOC = "L24"  ;
-#NET "exp_user_in_n"  LOC = "M23"  ;
-
-## SERDES
-#NET "ser_enable"  LOC = "R20"  ;
-#NET "ser_prbsen"  LOC = "U23"  ;
-#NET "ser_loopen"  LOC = "R19"  ;
-#NET "ser_rx_en"  LOC = "Y21"  ;
-#NET "ser_tx_clk"  LOC = "P23"  ;   # SERDES TX CLK
-#NET "ser_t<15>"  LOC = "V23"  ;
-#NET "ser_t<14>"  LOC = "U22"  ;
-#NET "ser_t<13>"  LOC = "V24"  ;
-#NET "ser_t<12>"  LOC = "V25"  ;
-#NET "ser_t<11>"  LOC = "W23"  ;
-#NET "ser_t<10>"  LOC = "V22"  ;
-#NET "ser_t<9>"  LOC = "T18"  ;
-#NET "ser_t<8>"  LOC = "T17"  ;
-#NET "ser_t<7>"  LOC = "Y24"  ;
-#NET "ser_t<6>"  LOC = "Y25"  ;
-#NET "ser_t<5>"  LOC = "U21"  ;
-#NET "ser_t<4>"  LOC = "T20"  ;
-#NET "ser_t<3>"  LOC = "Y22"  ;
-#NET "ser_t<2>"  LOC = "Y23"  ;
-#NET "ser_t<1>"  LOC = "U19"  ;
-#NET "ser_t<0>"  LOC = "U18"  ;
-#NET "ser_tkmsb"  LOC = "AA24"  ;
-#NET "ser_tklsb"  LOC = "AA25"  ;
-#NET "ser_rx_clk"  LOC = "P18"  ;
-#NET "ser_r<15>"  LOC = "V21"  ;
-#NET "ser_r<14>"  LOC = "U20"  ;
-#NET "ser_r<13>"  LOC = "AA22"  ;
-#NET "ser_r<12>"  LOC = "AA23"  ;
-#NET "ser_r<11>"  LOC = "V18"  ;
-#NET "ser_r<10>"  LOC = "V19"  ;
-#NET "ser_r<9>"  LOC = "AB23"  ;
-#NET "ser_r<8>"  LOC = "AC26"  ;
-#NET "ser_r<7>"  LOC = "AB26"  ;
-#NET "ser_r<6>"  LOC = "AD26"  ;
-#NET "ser_r<5>"  LOC = "AC25"  ;
-#NET "ser_r<4>"  LOC = "W20"  ;
-#NET "ser_r<3>"  LOC = "W21"  ;
-#NET "ser_r<2>"  LOC = "AC23"  ;
-#NET "ser_r<1>"  LOC = "AC24"  ;
-#NET "ser_r<0>"  LOC = "AE26"  ;
-#NET "ser_rkmsb"  LOC = "AD25"  ;
-#NET "ser_rklsb"  LOC = "Y20"  ;
-
-## SRAM
-#NET "RAM_D<35>"  LOC = "K16"  ;
-#NET "RAM_D<34>"  LOC = "D20"  ;
-#NET "RAM_D<33>"  LOC = "C20"  ;
-#NET "RAM_D<32>"  LOC = "E21"  ;
-#NET "RAM_D<31>"  LOC = "D21"  ;
-#NET "RAM_D<30>"  LOC = "C21"  ;
-#NET "RAM_D<29>"  LOC = "B21"  ;
-#NET "RAM_D<28>"  LOC = "H17"  ;
-#NET "RAM_D<27>"  LOC = "G17"  ;
-#NET "RAM_D<26>"  LOC = "B23"  ;
-#NET "RAM_D<25>"  LOC = "A22"  ;
-#NET "RAM_D<24>"  LOC = "D23"  ;
-#NET "RAM_D<23>"  LOC = "C23"  ;
-#NET "RAM_D<22>"  LOC = "D22"  ;
-#NET "RAM_D<21>"  LOC = "C22"  ;
-#NET "RAM_D<20>"  LOC = "F19"  ;
-#NET "RAM_D<19>"  LOC = "G20"  ;
-#NET "RAM_D<18>"  LOC = "F20"  ;
-#NET "RAM_D<17>"  LOC = "F7"  ;
-#NET "RAM_D<16>"  LOC = "E7"  ;
-#NET "RAM_D<15>"  LOC = "G9"  ;
-#NET "RAM_D<14>"  LOC = "H9"  ;
-#NET "RAM_D<13>"  LOC = "G10"  ;
-#NET "RAM_D<12>"  LOC = "H10"  ;
-#NET "RAM_D<11>"  LOC = "A4"  ;
-#NET "RAM_D<10>"  LOC = "B4"  ;
-#NET "RAM_D<9>"  LOC = "C5"  ;
-#NET "RAM_D<8>"  LOC = "D6"  ;
-#NET "RAM_D<7>"  LOC = "J11"  ;
-#NET "RAM_D<6>"  LOC = "K11"  ;
-#NET "RAM_D<5>"  LOC = "B7"  ;
-#NET "RAM_D<4>"  LOC = "C7"  ;
-#NET "RAM_D<3>"  LOC = "B6"  ;
-#NET "RAM_D<2>"  LOC = "C6"  ;
-#NET "RAM_D<1>"  LOC = "C8"  ;
-#NET "RAM_D<0>"  LOC = "D8"  ;
-#NET "RAM_A<0>"  LOC = "C11"  ;
-#NET "RAM_A<1>"  LOC = "E12"  ;
-#NET "RAM_A<2>"  LOC = "F12"  ;
-#NET "RAM_A<3>"  LOC = "D13"  ;
-#NET "RAM_A<4>"  LOC = "C12"  ;
-#NET "RAM_A<5>"  LOC = "A12"  ;
-#NET "RAM_A<6>"  LOC = "B12"  ;
-#NET "RAM_A<7>"  LOC = "E14"  ;
-#NET "RAM_A<8>"  LOC = "F14"  ;
-#NET "RAM_A<9>"  LOC = "B15"  ;
-#NET "RAM_A<10>"  LOC = "A15"  ;
-#NET "RAM_A<11>"  LOC = "D16"  ;
-#NET "RAM_A<12>"  LOC = "C15"  ;
-#NET "RAM_A<13>"  LOC = "D17"  ;
-#NET "RAM_A<14>"  LOC = "C16"  ;
-#NET "RAM_A<15>"  LOC = "F15"  ;
-#NET "RAM_A<16>"  LOC = "C17"  ;
-#NET "RAM_A<17>"  LOC = "B17"  ;
-#NET "RAM_A<18>"  LOC = "B18"  ;
-#NET "RAM_A<19>"  LOC = "A18"  ;
-#NET "RAM_A<20>"  LOC = "D18"  ;
-#NET "RAM_BWn<3>"  LOC = "D9"  ;
-#NET "RAM_BWn<2>"  LOC = "A9"  ;
-#NET "RAM_BWn<1>"  LOC = "B9"  ;
-#NET "RAM_BWn<0>"  LOC = "G12"  ;
-#NET "RAM_ZZ"  LOC = "J12"  ;
-#NET "RAM_LDn"  LOC = "H12"  ;
-#NET "RAM_OEn"  LOC = "C10"  ;
-#NET "RAM_WEn"  LOC = "D10"  ;
-#NET "RAM_CENn"  LOC = "B10"  ;
-#NET "RAM_CLK"  LOC = "A10"  ;
-
-## SPI Flash
-#NET "flash_miso"  LOC = "AF24"  ;
-#NET "flash_clk"  LOC = "AE24"  ;
-#NET "flash_mosi"  LOC = "AB15"  ;
-#NET "flash_cs"  LOC = "AA7"  ;
-
-## MISC FPGA, unused for now
-##NET "PROG_B"  LOC = "A2"  ;
-##NET "PUDC_B"  LOC = "G8"  ;
-##NET "DONE"  LOC = "AB21"  ;
-##NET "INIT_B"  LOC = "AA15"  ;
-
-
-##NET "unnamed_net19"  LOC = "AE9"  ;    # VS1
-##NET "unnamed_net18"  LOC = "AF9"  ;    # VS0
-##NET "unnamed_net17"  LOC = "AA12"  ;   # VS2
-##NET "unnamed_net16"  LOC = "Y7"  ;     # M2
-##NET "unnamed_net15"  LOC = "AC4"  ;    # M1
-##NET "unnamed_net14"  LOC = "AD4"  ;    # M0
-##NET "unnamed_net13"  LOC = "D4"  ;     # TMS
-##NET "unnamed_net12"  LOC = "E23"  ;    # TDO
-##NET "unnamed_net11"  LOC = "G7"  ;     # TDI
-##NET "unnamed_net10"  LOC = "A25"  ;    # TCK
-##NET "unnamed_net20"  LOC = "V20"  ;    # SUSPEND
diff --git a/fpga/usrp2/top/single_u2_sim/single_u2_sim.v b/fpga/usrp2/top/single_u2_sim/single_u2_sim.v
deleted file mode 100644
index 2a7b24849..000000000
--- a/fpga/usrp2/top/single_u2_sim/single_u2_sim.v
+++ /dev/null
@@ -1,324 +0,0 @@
-`timescale 1ns / 1ps
-//////////////////////////////////////////////////////////////////////////////////
-
-module single_u2_sim();
-   // Misc, debug
-   wire [7:0] leds;
-   wire [31:0] debug;
-   wire [1:0]  debug_clk;
-   
-   // Expansion
-   wire        exp_pps_in;
-   wire        exp_pps_out;
-   
-   // GMII
-   //   GMII-CTRL
-   wire        GMII_COL;
-   wire        GMII_CRS;
-   
-   //   GMII-TX
-   wire [7:0]  GMII_TXD;
-   wire        GMII_TX_EN;
-   wire        GMII_TX_ER;
-   wire        GMII_GTX_CLK;
-   wire        GMII_TX_CLK;  // 100mbps clk
-   
-   //   GMII-RX
-   wire [7:0]  GMII_RXD;
-   wire        GMII_RX_CLK;
-   wire        GMII_RX_DV;
-   wire        GMII_RX_ER;
-   
-   //   GMII-Management
-   wire        MDIO;
-   wire        MDC;
-   wire        PHY_INTn;   // open drain
-   wire        PHY_RESETn;
-   wire        PHY_CLK;   // possibly use on-board osc
-   
-   // RAM
-   wire [17:0] RAM_D;
-   wire [18:0] RAM_A;
-   wire        RAM_CE1n;
-   wire        RAM_CENn;
-   wire        RAM_CLK;
-   wire        RAM_WEn;
-   wire        RAM_OEn;
-   wire        RAM_LDn;
-   
-   // SERDES
-   wire        ser_enable;
-   wire        ser_prbsen;
-   wire        ser_loopen;
-   wire        ser_rx_en;
-   
-   wire        ser_tx_clk;
-   wire [15:0] ser_t;
-   wire        ser_tklsb;
-   wire        ser_tkmsb;
-   
-   wire        ser_rx_clk;
-   wire [15:0] ser_r;
-   wire        ser_rklsb;
-   wire        ser_rkmsb;
-   
-   // CPLD interface
-   wire        cpld_din, cpld_clk, cpld_detached, cpld_start, cpld_mode, cpld_done;
-      
-   // ADC
-   wire [13:0] adc_a;
-   wire        adc_ovf_a;
-   wire        adc_on_a,  adc_oe_a;
-   
-   wire [13:0] adc_b;
-   wire        adc_ovf_b;
-   wire        adc_on_b, adc_oe_b;
-   
-   // DAC
-   wire [15:0] dac_a;
-   wire [15:0] dac_b;
-   
-   // I2C
-   wire        SCL;
-   wire        SDA;
-   
-   // Clock Gen Control
-   wire [1:0]  clk_en;
-   wire [1:0]  clk_sel;
-   wire        clk_func;        // FIXME is an input to control the 9510
-   wire        clk_status;
-   
-   // Clocks
-   reg 	       clk_fpga;
-   reg 	       clk_to_mac;
-   wire        pps_in;
-   
-   // Generic SPI
-   wire        sclk, mosi, miso;   
-   wire        sen_clk;
-   wire        sen_dac;
-   wire        sen_tx_db;
-   wire        sen_tx_adc;
-   wire        sen_tx_dac;
-   wire        sen_rx_db;
-   wire        sen_rx_adc;
-   wire        sen_rx_dac;
-   
-   // GPIO to DBoards
-   wire [15:0] io_tx;
-   wire [15:0] io_rx;
-   
-   wire        wb_clk;
-   wire        start, clock_ready;
-   
-   reg 	       aux_clk;
-
-   initial aux_clk= 1'b0;
-   always #6 aux_clk = ~aux_clk;
-   
-   initial clk_fpga = 1'bx;
-   initial #3007 clk_fpga = 1'b0;
-   always #5 clk_fpga = ~clk_fpga;
-   
-   initial clk_to_mac = 0;
-   always #4 clk_to_mac = ~clk_to_mac;
-   
-   wire        div_clk, dsp_clk;
-   reg [7:0]   div_ctr = 0;
-   
-   assign      dsp_clk = clock_ready ? clk_fpga : aux_clk;
-   assign      wb_clk = div_clk;
-
-`define CLK_DIV_2 1
-//`define CLK_DIV_3
-
-`ifdef CLK_DIV_2
-   localparam  clock_divider = 4'd2;
-   always @(posedge dsp_clk)
-     div_ctr <= div_ctr + 1;
-   assign      div_clk = div_ctr[0];
-`endif
-
-`ifdef CLK_DIV_3
-   localparam  clock_divider = 2;
-   always @(posedge dsp_clk or negedge dsp_clk)
-     if(div_ctr == 5)
-       div_ctr <= 0;
-     else
-       div_ctr <= div_ctr + 1;
-   assign      div_clk = ((div_ctr == 0) | (div_ctr == 1) | (div_ctr == 2));
-`endif
-   
-   initial
-     $monitor($time, ,clock_ready);
-
-   always #1000000 $monitor("Time in ns ",$time);
-   
-   initial begin
-      @(negedge cpld_done);
-      @(posedge cpld_done);
-      $dumpfile("single_u2_sim.lxt");
-      $dumpvars(0,single_u2_sim);
-   end
-
-   initial #10000000 $finish;
-
-   cpld_model 
-     cpld_model (.aux_clk(aux_clk),.start(cpld_start),.mode(cpld_mode),.done(cpld_done),
-		 .dout(cpld_din),.sclk(cpld_clk),.detached(cpld_detached));
-     
-   serdes_model serdes_model
-     (.ser_tx_clk(ser_tx_clk), .ser_tkmsb(ser_tkmsb), .ser_tklsb(ser_tklsb), .ser_t(ser_t),
-      .ser_rx_clk(ser_rx_clk), .ser_rkmsb(ser_rkmsb), .ser_rklsb(ser_rklsb), .ser_r(ser_r),
-      .even(0),.error(0) );
-
-   adc_model adc_model
-     (.clk(dsp_clk),.rst(0),
-      .adc_a(adc_a),.adc_ovf_a(adc_ovf_a),.adc_on_a(adc_on_a),.adc_oe_a(adc_oe_a),
-      .adc_b(adc_b),.adc_ovf_b(adc_ovf_b),.adc_on_b(adc_on_b),.adc_oe_b(adc_oe_b) );
-
-   wire [2:0] speed;
-   phy_sim phy_model
-     (.Gtx_clk(GMII_GTX_CLK), . Rx_clk(GMII_RX_CLK), .Tx_clk(GMII_TX_CLK),
-      .Tx_er(GMII_TX_ER), .Tx_en(GMII_TX_EN), .Txd(GMII_TXD),
-      .Rx_er(GMII_RX_ER), .Rx_dv(GMII_RX_DV), .Rxd(GMII_RXD),
-      .Crs(GMII_CRS), .Col(GMII_COL),
-      .Speed(speed), .Done(0) );
-   pullup p3(MDIO);
-   
-   miim_model miim_model
-     (.mdc_i(MDC),.mdio(MDIO),.phy_resetn_i(PHY_RESETn),.phy_clk_i(PHY_CLK),
-      .phy_intn_o(PHY_INTn),.speed_o(speed) );
-   
-   xlnx_glbl glbl (.GSR(),.GTS());
-
-   wire       RAM_MODE = 1'b0;
-   cy1356 ram_model(.d(RAM_D),.clk(RAM_CLK),.a(RAM_A),
-		    .bws(2'b00),.we_b(RAM_WEn),.adv_lb(RAM_LDn),
-		    .ce1b(RAM_CE1n),.ce2(1'b1),.ce3b(1'b0),
-		    .oeb(RAM_OEn),.cenb(RAM_CENn),.mode(RAM_MODE) );
-   
-   M24LC024B eeprom_model(.A0(0),.A1(0),.A2(0),.WP(0),
-			  .SDA(SDA),.SCL(SCL),.RESET(0));
-
-   wire       scl_pad_i, scl_pad_o, scl_pad_oen_o;
-   wire       sda_pad_i, sda_pad_o, sda_pad_oen_o;
-   
-   pullup p1(SCL);
-   pullup p2(SDA);
-
-   assign     scl_pad_i = SCL;
-   assign     sda_pad_i = SDA;
-
-   assign     SCL = scl_pad_oen_o ? 1'bz : scl_pad_o;
-   assign     SDA = sda_pad_oen_o ? 1'bz : sda_pad_o;
-
-   // printf output
-   wire       uart_baud_o, uart_tx_o, uart_rx_i;
-   assign     uart_rx_i = 1'b1;
-   
-   uart_rx uart_rx(.baudclk(uart_baud_o),.rxd(uart_tx_o));
-   
-   // End the simulation
-   always @(posedge wb_clk)
-     if((u2_core.m0_we == 1'd1)&&(u2_core.m0_adr == 16'hC2F0))
-       begin
-	  $display($time, "Finish called.",);
-	  $finish;
-       end
-   
-   u2_core #(.RAM_SIZE(32768))
-            u2_core(.dsp_clk		(dsp_clk),
-		     .wb_clk            (wb_clk),
-		     .clock_ready	(clock_ready),
-		     .clk_to_mac	(clk_to_mac),
-		     .pps_in		(pps_in),
-		     .leds		(leds),
-		     .debug		(debug[31:0]),
-		     .debug_clk		(debug_clk[1:0]),
-		     .exp_pps_in	(exp_pps_in),
-		     .exp_pps_out	(exp_pps_out),
-		     .GMII_COL		(GMII_COL),
-		     .GMII_CRS		(GMII_CRS),
-		     .GMII_TXD		(GMII_TXD[7:0]),
-		     .GMII_TX_EN	(GMII_TX_EN),
-		     .GMII_TX_ER	(GMII_TX_ER),
-		     .GMII_GTX_CLK	(GMII_GTX_CLK),
-		     .GMII_TX_CLK	(GMII_TX_CLK),
-		     .GMII_RXD		(GMII_RXD[7:0]),
-		     .GMII_RX_CLK	(GMII_RX_CLK),
-		     .GMII_RX_DV	(GMII_RX_DV),
-		     .GMII_RX_ER	(GMII_RX_ER),
-		     .MDIO		(MDIO),
-		     .MDC		(MDC),
-		     .PHY_INTn		(PHY_INTn),
-		     .PHY_RESETn	(PHY_RESETn),
-		     .ser_enable	(ser_enable),
-		     .ser_prbsen	(ser_prbsen),
-		     .ser_loopen	(ser_loopen),
-		     .ser_rx_en		(ser_rx_en),
-		     .ser_tx_clk	(ser_tx_clk),
-		     .ser_t		(ser_t[15:0]),
-		     .ser_tklsb		(ser_tklsb),
-		     .ser_tkmsb		(ser_tkmsb),
-		     .ser_rx_clk	(ser_rx_clk),
-		     .ser_r		(ser_r[15:0]),
-		     .ser_rklsb		(ser_rklsb),
-		     .ser_rkmsb		(ser_rkmsb),
-		     .cpld_start	(cpld_start),
-		     .cpld_mode		(cpld_mode),
-		     .cpld_done		(cpld_done),
-		     .cpld_din		(cpld_din),
-		     .cpld_clk		(cpld_clk),
-		     .cpld_detached	(cpld_detached),
-		     .cpld_init_b       (1),
-		     .por               (0),
-		     .adc_a		(adc_a[13:0]),
-		     .adc_ovf_a		(adc_ovf_a),
-		     .adc_on_a		(adc_on_a),
-		     .adc_oe_a		(adc_oe_a),
-		     .adc_b		(adc_b[13:0]),
-		     .adc_ovf_b		(adc_ovf_b),
-		     .adc_on_b		(adc_on_b),
-		     .adc_oe_b		(adc_oe_b),
-		     .dac_a		(dac_a[15:0]),
-		     .dac_b		(dac_b[15:0]),
-		     .scl_pad_i		(scl_pad_i),
-		     .scl_pad_o		(scl_pad_o),
-		     .scl_pad_oen_o	(scl_pad_oen_o),
-		     .sda_pad_i		(sda_pad_i),
-		     .sda_pad_o		(sda_pad_o),
-		     .sda_pad_oen_o	(sda_pad_oen_o),
-		     .clk_en		(clk_en[1:0]),
-		     .clk_sel		(clk_sel[1:0]),
-		     .clk_func		(clk_func),
-		     .clk_status	(clk_status),
-		     .sclk		(sclk),
-		     .mosi		(mosi),
-		     .miso		(miso),
-		     .sen_clk		(sen_clk),
-		     .sen_dac		(sen_dac),
-		     .sen_tx_db		(sen_tx_db),
-		     .sen_tx_adc	(sen_tx_adc),
-		     .sen_tx_dac	(sen_tx_dac),
-		     .sen_rx_db		(sen_rx_db),
-		     .sen_rx_adc	(sen_rx_adc),
-		     .sen_rx_dac	(sen_rx_dac),
-		     .io_tx		(io_tx[15:0]),
-		     .io_rx		(io_rx[15:0]),
-		     .RAM_D             (RAM_D),
-		     .RAM_A             (RAM_A),
-		     .RAM_CE1n          (RAM_CE1n),
-		     .RAM_CENn          (RAM_CENn),
-		     .RAM_CLK           (RAM_CLK),
-		     .RAM_WEn           (RAM_WEn),
-		     .RAM_OEn           (RAM_OEn),
-		     .RAM_LDn           (RAM_LDn),
-		     .uart_tx_o         (uart_tx_o),
-		     .uart_rx_i         (uart_rx_i),
-		     .uart_baud_o       (uart_baud_o),
-		     .sim_mode          (1'b1),
-		     .clock_divider     (clock_divider)
-		     );
-
-endmodule // single_u2_sim
diff --git a/fpga/usrp2/top/tcl/ise_helper.tcl b/fpga/usrp2/top/tcl/ise_helper.tcl
index a4bee76b8..f11596f8b 100644
--- a/fpga/usrp2/top/tcl/ise_helper.tcl
+++ b/fpga/usrp2/top/tcl/ise_helper.tcl
@@ -1,8 +1,6 @@
 #
 # Copyright 2008 Ettus Research LLC
 # 
-# This file is part of GNU Radio
-# 
 # GNU Radio 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, or (at your option)
diff --git a/fpga/usrp2/top/u1e_ethdebug/.gitignore b/fpga/usrp2/top/u1e_ethdebug/.gitignore
deleted file mode 100644
index 8d872713e..000000000
--- a/fpga/usrp2/top/u1e_ethdebug/.gitignore
+++ /dev/null
@@ -1,6 +0,0 @@
-*~
-build
-*.log
-*.cmd
-tb_u1e
-*.lxt
diff --git a/fpga/usrp2/top/u1e_ethdebug/u1e.ucf b/fpga/usrp2/top/u1e_ethdebug/u1e.ucf
deleted file mode 100644
index d6a2ea4ed..000000000
--- a/fpga/usrp2/top/u1e_ethdebug/u1e.ucf
+++ /dev/null
@@ -1,88 +0,0 @@
-
-## GPMC
-NET "EM_D<15>"  LOC = "D13"  ;
-NET "EM_D<14>"  LOC = "D15"  ;
-NET "EM_D<13>"  LOC = "C16"  ;
-NET "EM_D<12>"  LOC = "B20"  ;
-NET "EM_D<11>"  LOC = "A19"  ;
-NET "EM_D<10>"  LOC = "A17"  ;
-NET "EM_D<9>"  LOC = "E15"  ;
-NET "EM_D<8>"  LOC = "F15"  ;
-NET "EM_D<7>"  LOC = "E16"  ;
-NET "EM_D<6>"  LOC = "F16"  ;
-NET "EM_D<5>"  LOC = "B17"  ;
-NET "EM_D<4>"  LOC = "C17"  ;
-NET "EM_D<3>"  LOC = "B19"  ;
-NET "EM_D<2>"  LOC = "D19"  ;
-NET "EM_D<1>"  LOC = "C19"  ;
-NET "EM_D<0>"  LOC = "A20"  ;
-
-NET "EM_A<10>"  LOC = "C14"  ;
-NET "EM_A<9>"  LOC = "C10"  ;
-NET "EM_A<8>"  LOC = "C5"  ;
-NET "EM_A<7>"  LOC = "A18"  ;
-NET "EM_A<6>"  LOC = "A15"  ;
-NET "EM_A<5>"  LOC = "A12"  ;
-NET "EM_A<4>"  LOC = "A10"  ;
-NET "EM_A<3>"  LOC = "E7"  ;
-NET "EM_A<2>"  LOC = "A7"  ;
-NET "EM_A<1>"  LOC = "C15"  ;
-
-NET "EM_NCS6"  LOC = "E17"  ;
-NET "EM_NCS5"  LOC = "E10"  ;
-NET "EM_NCS4"  LOC = "E6"  ;
-#NET "EM_NCS1"  LOC = "D18"  ;
-#NET "EM_NCS0"  LOC = "D17"  ;
-
-NET "EM_CLK"  LOC = "F11"  ;
-NET "EM_WAIT0"  LOC = "F14"  ;
-#NET "EM_NBE<1>"  LOC = "D14"  ;
-#NET "EM_NBE<0>"  LOC = "A13"  ;
-NET "EM_NWE"  LOC = "B13"  ;
-NET "EM_NOE"  LOC = "A14"  ;
-NET "EM_NADV_ALE"  LOC = "B15"  ;
-#NET "EM_NWP"  LOC = "F13"  ;
-NET "overo_gpio64"  LOC = "A4"  ;  # nRESET
-NET "overo_gpio176"  LOC = "B4"  ;  # IRQ
-
-## Debug pins
-NET "debug_led<3>"  LOC = "Y15"  ;
-NET "debug_led<2>"  LOC = "K16"  ;
-NET "debug_led<1>"  LOC = "J17"  ;
-NET "debug_led<0>"  LOC = "H22"  ;
-NET "debug<0>"  LOC = "G22"  ;
-NET "debug<1>"  LOC = "H17"  ;
-NET "debug<2>"  LOC = "H18"  ;
-NET "debug<3>"  LOC = "K20"  ;
-NET "debug<4>"  LOC = "J20"  ;
-NET "debug<5>"  LOC = "K19"  ;
-NET "debug<6>"  LOC = "K18"  ;
-NET "debug<7>"  LOC = "L22"  ;
-NET "debug<8>"  LOC = "K22"  ;
-NET "debug<9>"  LOC = "N22"  ;
-NET "debug<10>"  LOC = "M22"  ;
-NET "debug<11>"  LOC = "N20"  ;
-NET "debug<12>"  LOC = "N19"  ;
-NET "debug<13>"  LOC = "R22"  ;
-NET "debug<14>"  LOC = "P22"  ;
-NET "debug<15>"  LOC = "N17"  ;
-NET "debug<16>"  LOC = "P16"  ;
-NET "debug<17>"  LOC = "U22"  ;
-NET "debug<18>"  LOC = "P19"  ;
-NET "debug<19>"  LOC = "R18"  ;
-NET "debug<20>"  LOC = "U20"  ;
-NET "debug<21>"  LOC = "T20"  ;
-NET "debug<22>"  LOC = "R19"  ;
-NET "debug<23>"  LOC = "R20"  ;
-NET "debug<24>"  LOC = "W22"  ;
-NET "debug<25>"  LOC = "Y22"  ;
-NET "debug<26>"  LOC = "T18"  ;
-NET "debug<27>"  LOC = "T17"  ;
-NET "debug<28>"  LOC = "W19"  ;
-NET "debug<29>"  LOC = "V20"  ;
-NET "debug<30>"  LOC = "Y21"  ;
-NET "debug<31>"  LOC = "AA22"  ;
-NET "debug_clk<0>"  LOC = "N18"  ;
-NET "debug_clk<1>"  LOC = "M17"  ;
-
-NET "debug_pb"  LOC = "C22"  ;
diff --git a/fpga/usrp2/top/u1e_ethdebug/u1e.v b/fpga/usrp2/top/u1e_ethdebug/u1e.v
deleted file mode 100644
index 2a543a313..000000000
--- a/fpga/usrp2/top/u1e_ethdebug/u1e.v
+++ /dev/null
@@ -1,28 +0,0 @@
-`timescale 1ns / 1ps
-//////////////////////////////////////////////////////////////////////////////////
-
-//`define DCM 1
-
-module u1e
-  (output [3:0] debug_led, output [31:0] debug, output [1:0] debug_clk,
-   input debug_pb,
-
-   // GPMC
-   input EM_CLK, input [15:0] EM_D, input [10:1] EM_A,
-   input EM_WAIT0, input EM_NCS4, input EM_NCS5, input EM_NCS6, input EM_NWE, input EM_NOE,
-   input EM_NADV_ALE,
-
-   input overo_gpio64, input overo_gpio176
-   );
-
-   assign debug_clk = {EM_CLK, EM_NADV_ALE};
-
-   assign debug_led = {1'b0, EM_A[9], EM_A[8], debug_pb};
-
-   assign debug = { {overo_gpio64, overo_gpio176, EM_WAIT0, EM_NCS4, EM_NCS5, EM_NCS6, EM_NWE, EM_NOE },
-		    { EM_A[10], EM_A[7:1] },
-		    { EM_D[15:8] },
-		    { EM_D[7:0] } };
-   
-
-endmodule // u1e
diff --git a/fpga/usrp2/top/u1e_passthru/passthru.v b/fpga/usrp2/top/u1e_passthru/passthru.v
deleted file mode 100644
index 12e4db017..000000000
--- a/fpga/usrp2/top/u1e_passthru/passthru.v
+++ /dev/null
@@ -1,18 +0,0 @@
-`timescale 1ns / 1ps
-//////////////////////////////////////////////////////////////////////////////////
-
-module passthru
-  (input overo_gpio145,
-   output cgen_sclk,
-   output cgen_sen_b,
-   output cgen_mosi,
-   input fpga_cfg_din,
-   input fpga_cfg_cclk
-   );
-   
-   assign cgen_sclk = fpga_cfg_cclk;
-   assign cgen_sen_b = overo_gpio145;
-   assign cgen_mosi = fpga_cfg_din;
-   
-   
-endmodule // passthru
diff --git a/fpga/usrp2/top/u2_rev3_2rx_iad/Makefile b/fpga/usrp2/top/u2_rev3_2rx_iad/Makefile
deleted file mode 100644
index 334089839..000000000
--- a/fpga/usrp2/top/u2_rev3_2rx_iad/Makefile
+++ /dev/null
@@ -1,253 +0,0 @@
-#
-# Copyright 2008 Ettus Research LLC
-# 
-# This file is part of GNU Radio
-# 
-# GNU Radio 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, or (at your option)
-# any later version.
-# 
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-# 
-
-##################################################
-# xtclsh Shell and tcl Script Path
-##################################################
-#XTCLSH := /opt/Xilinx/10.1/ISE/bin/lin/xtclsh
-XTCLSH := xtclsh
-ISE_HELPER := ../tcl/ise_helper.tcl
-
-##################################################
-# Project Setup
-##################################################
-BUILD_DIR := build/
-export TOP_MODULE := u2_rev3
-export PROJ_FILE := $(BUILD_DIR)$(TOP_MODULE).ise
-
-##################################################
-# Project Properties
-##################################################
-export PROJECT_PROPERTIES := \
-family Spartan3 \
-device xc3s2000 \
-package fg456 \
-speed -5 \
-top_level_module_type "HDL" \
-synthesis_tool "XST (VHDL/Verilog)" \
-simulator "ISE Simulator (VHDL/Verilog)" \
-"Preferred Language" "Verilog" \
-"Enable Message Filtering" FALSE \
-"Display Incremental Messages" FALSE 
-
-##################################################
-# Sources
-##################################################
-export SOURCE_ROOT := ../../../
-export SOURCES := \
-control_lib/CRC16_D16.v \
-control_lib/atr_controller.v \
-control_lib/bin2gray.v \
-control_lib/buffer_int.v \
-control_lib/buffer_pool.v \
-control_lib/cascadefifo2.v \
-control_lib/dcache.v \
-control_lib/decoder_3_8.v \
-control_lib/dpram32.v \
-control_lib/fifo_2clock.v \
-control_lib/fifo_2clock_casc.v \
-control_lib/gray2bin.v \
-control_lib/gray_send.v \
-control_lib/icache.v \
-control_lib/longfifo.v \
-control_lib/mux4.v \
-control_lib/mux8.v \
-control_lib/nsgpio.v \
-control_lib/ram_2port.v \
-control_lib/ram_harv_cache.v \
-control_lib/ram_loader.v \
-control_lib/setting_reg.v \
-control_lib/settings_bus.v \
-control_lib/shortfifo.v \
-control_lib/medfifo.v \
-control_lib/srl.v \
-control_lib/system_control.v \
-control_lib/wb_1master.v \
-control_lib/wb_readback_mux.v \
-control_lib/simple_uart.v \
-control_lib/simple_uart_tx.v \
-control_lib/simple_uart_rx.v \
-control_lib/oneshot_2clk.v \
-control_lib/sd_spi.v \
-control_lib/sd_spi_wb.v \
-control_lib/wb_bridge_16_32.v \
-coregen/fifo_xlnx_2Kx36_2clk.v \
-coregen/fifo_xlnx_2Kx36_2clk.xco \
-coregen/fifo_xlnx_512x36_2clk.v \
-coregen/fifo_xlnx_512x36_2clk.xco \
-eth/mac_rxfifo_int.v \
-eth/mac_txfifo_int.v \
-eth/rtl/verilog/Clk_ctrl.v \
-eth/rtl/verilog/MAC_rx.v \
-eth/rtl/verilog/MAC_rx/Broadcast_filter.v \
-eth/rtl/verilog/MAC_rx/CRC_chk.v \
-eth/rtl/verilog/MAC_rx/MAC_rx_FF.v \
-eth/rtl/verilog/MAC_rx/MAC_rx_add_chk.v \
-eth/rtl/verilog/MAC_rx/MAC_rx_ctrl.v \
-eth/rtl/verilog/MAC_top.v \
-eth/rtl/verilog/MAC_tx.v \
-eth/rtl/verilog/MAC_tx/CRC_gen.v \
-eth/rtl/verilog/MAC_tx/MAC_tx_FF.v \
-eth/rtl/verilog/MAC_tx/MAC_tx_addr_add.v \
-eth/rtl/verilog/MAC_tx/MAC_tx_ctrl.v \
-eth/rtl/verilog/MAC_tx/Random_gen.v \
-eth/rtl/verilog/Phy_int.v \
-eth/rtl/verilog/RMON.v \
-eth/rtl/verilog/RMON/RMON_addr_gen.v \
-eth/rtl/verilog/RMON/RMON_ctrl.v \
-eth/rtl/verilog/Reg_int.v \
-eth/rtl/verilog/eth_miim.v \
-eth/rtl/verilog/flow_ctrl_rx.v \
-eth/rtl/verilog/flow_ctrl_tx.v \
-eth/rtl/verilog/miim/eth_clockgen.v \
-eth/rtl/verilog/miim/eth_outputcontrol.v \
-eth/rtl/verilog/miim/eth_shiftreg.v \
-opencores/8b10b/decode_8b10b.v \
-opencores/8b10b/encode_8b10b.v \
-opencores/aemb/rtl/verilog/aeMB_bpcu.v \
-opencores/aemb/rtl/verilog/aeMB_core_BE.v \
-opencores/aemb/rtl/verilog/aeMB_ctrl.v \
-opencores/aemb/rtl/verilog/aeMB_edk32.v \
-opencores/aemb/rtl/verilog/aeMB_ibuf.v \
-opencores/aemb/rtl/verilog/aeMB_regf.v \
-opencores/aemb/rtl/verilog/aeMB_xecu.v \
-opencores/i2c/rtl/verilog/i2c_master_bit_ctrl.v \
-opencores/i2c/rtl/verilog/i2c_master_byte_ctrl.v \
-opencores/i2c/rtl/verilog/i2c_master_defines.v \
-opencores/i2c/rtl/verilog/i2c_master_top.v \
-opencores/i2c/rtl/verilog/timescale.v \
-opencores/simple_pic/rtl/simple_pic.v \
-opencores/spi/rtl/verilog/spi_clgen.v \
-opencores/spi/rtl/verilog/spi_defines.v \
-opencores/spi/rtl/verilog/spi_shift.v \
-opencores/spi/rtl/verilog/spi_top.v \
-opencores/spi/rtl/verilog/timescale.v \
-sdr_lib/acc.v \
-sdr_lib/add2.v \
-sdr_lib/add2_and_round.v \
-sdr_lib/add2_and_round_reg.v \
-sdr_lib/add2_reg.v \
-sdr_lib/cic_dec_shifter.v \
-sdr_lib/cic_decim.v \
-sdr_lib/cic_int_shifter.v \
-sdr_lib/cic_interp.v \
-sdr_lib/cic_strober.v \
-sdr_lib/clip.v \
-sdr_lib/clip_reg.v \
-sdr_lib/cordic.v \
-sdr_lib/cordic_z24.v \
-sdr_lib/cordic_stage.v \
-sdr_lib/dsp_core_tx.v \
-sdr_lib/hb_dec.v \
-sdr_lib/hb_interp.v \
-sdr_lib/integrate.v \
-sdr_lib/round.v \
-sdr_lib/round_reg.v \
-sdr_lib/rx_control.v \
-sdr_lib/rx_dcoffset.v \
-sdr_lib/sign_extend.v \
-sdr_lib/small_hb_dec.v \
-sdr_lib/small_hb_int.v \
-sdr_lib/tx_control.v \
-serdes/serdes.v \
-serdes/serdes_fc_rx.v \
-serdes/serdes_fc_tx.v \
-serdes/serdes_rx.v \
-serdes/serdes_tx.v \
-timing/time_receiver.v \
-timing/time_sender.v \
-timing/time_sync.v \
-timing/timer.v \
-top/u2_rev3/u2_rev3.ucf \
-top/u2_rev3/u2_rev3.v \
-top/u2_rev3_2rx_iad/u2_core.v \
-top/u2_rev3_2rx_iad/dsp_core_rx.v
-
-##################################################
-# Process Properties
-##################################################
-export SYNTHESIZE_PROPERTIES := \
-"Number of Clock Buffers" 6 \
-"Pack I/O Registers into IOBs" Yes \
-"Optimization Effort" High \
-"Optimize Instantiated Primitives" TRUE \
-"Register Balancing" Yes \
-"Use Clock Enable" Auto \
-"Use Synchronous Reset" Auto \
-"Use Synchronous Set" Auto
-
-export TRANSLATE_PROPERTIES := \
-"Macro Search Path" "$(shell pwd)/../../coregen/"
-
-export MAP_PROPERTIES := \
-"Allow Logic Optimization Across Hierarchy" TRUE \
-"Map to Input Functions" 4 \
-"Optimization Strategy (Cover Mode)" Speed \
-"Pack I/O Registers/Latches into IOBs" "For Inputs and Outputs" \
-"Perform Timing-Driven Packing and Placement" TRUE \
-"Map Effort Level" High \
-"Extra Effort" Normal \
-"Combinatorial Logic Optimization" TRUE \
-"Register Duplication" TRUE
-
-export PLACE_ROUTE_PROPERTIES := \
-"Place & Route Effort Level (Overall)" High 
-
-export STATIC_TIMING_PROPERTIES := \
-"Number of Paths in Error/Verbose Report" 10 \
-"Report Type" "Error Report"
-
-export GEN_PROG_FILE_PROPERTIES := \
-"Configuration Rate" 6 \
-"Create Binary Configuration File" TRUE \
-"Done (Output Events)" 5 \
-"Enable Bitstream Compression" TRUE \
-"Enable Outputs (Output Events)" 6 
-
-export SIM_MODEL_PROPERTIES := ""
-
-##################################################
-# Make Options
-##################################################
-all:
-	@echo make proj, check, synth, bin, testbench, or clean
-
-proj:
-	PROCESS_RUN="" $(XTCLSH) $(ISE_HELPER)	
-
-check:
-	PROCESS_RUN="Check Syntax" $(XTCLSH) $(ISE_HELPER)	
-
-synth:
-	PROCESS_RUN="Synthesize - XST" $(XTCLSH) $(ISE_HELPER)	
-
-bin:
-	PROCESS_RUN="Generate Programming File" $(XTCLSH) $(ISE_HELPER)		
-
-testbench:
-	iverilog -c cmdfile -o dsp_core_tb dsp_core_tb.v
-
-clean:
-	rm -rf $(BUILD_DIR)
-	rm -f dsp_core_tb
-	rm -f *.lx2
-	rm -f *.dat
-	rm -f *.vcd
diff --git a/fpga/usrp2/top/u2_rev3_2rx_iad/README b/fpga/usrp2/top/u2_rev3_2rx_iad/README
deleted file mode 100644
index 3efc5305b..000000000
--- a/fpga/usrp2/top/u2_rev3_2rx_iad/README
+++ /dev/null
@@ -1,32 +0,0 @@
-This is a custom build for USRP2 FPGA.  It allows using a BasicRX or
-LFRX board and feed two independent, real signals.  In addition, instead
-of the CIC/HB decimator, which optimizes frequency response, it uses an
-integrate and dump decimator, which optimizes for time-domain impulse
-response.
-
-These changes have been made in dsp_core_rx.v:
-
-* A second DDC has been added, sharing a frequency register with
-  the existing DDC.
-
-* The output of the two DDCs are interleaved as I1 Q1 I2 Q2I ...
-  into the receive FIFO.  This limits the host configured decimation
-  to 8 intead of 4.  Use gr.deinterleave to recover the streams.
-
-* The ADCs are hardcoded:
- 
-  RX_A ==>  DDC #1 I-input
-     0 ==>  DDC #1 Q-input
-  RX_B ==>  DDC #2 I-input
-     0 ==>  DDC #2 Q-input
-
-  Thus, the input mux has been disabled.
-
-* The CIC/HB decimator has been replaced by an integrate and dump at
-  the decimation rate.
-
-* To assist with meeting timing, the external RAM has been disabled.
-
-The basic application is to coherently sample two real IF streams and
-downconvert to baseband, while minimizing the impulse response duration
-of the resampling filters.
diff --git a/fpga/usrp2/top/u2_rev3_2rx_iad/cmdfile b/fpga/usrp2/top/u2_rev3_2rx_iad/cmdfile
deleted file mode 100644
index 34373a676..000000000
--- a/fpga/usrp2/top/u2_rev3_2rx_iad/cmdfile
+++ /dev/null
@@ -1,4 +0,0 @@
--y .
--y ../../sdr_lib
--y ../../control_lib
--y ../../models
diff --git a/fpga/usrp2/top/u2_rev3_2rx_iad/dsp_core_rx.v b/fpga/usrp2/top/u2_rev3_2rx_iad/dsp_core_rx.v
deleted file mode 100644
index 4a945bd1a..000000000
--- a/fpga/usrp2/top/u2_rev3_2rx_iad/dsp_core_rx.v
+++ /dev/null
@@ -1,212 +0,0 @@
-`define DSP_CORE_RX_BASE 160
-module dsp_core_rx
-  (input clk, input rst,
-   input set_stb, input [7:0] set_addr, input [31:0] set_data,
-
-   input [13:0] adc_a, input adc_ovf_a,
-   input [13:0] adc_b, input adc_ovf_b,
-   
-   input [15:0] io_rx,
-
-   output reg [31:0] sample,
-   input run,
-   output strobe,
-   output [31:0] debug
-   );
-
-   wire [15:0] scale_i, scale_q;
-   wire [13:0] adc_a_ofs, adc_b_ofs;
-   reg  [13:0] adc_i, adc_q;
-   wire [31:0] phase_inc;
-   reg  [31:0] phase;
-
-   wire [35:0] prod_i, prod_q;
-   wire [23:0] i_cordic_a, q_cordic_a, i_cordic_b, q_cordic_b;
-   wire [31:0] i_iad_a, q_iad_a, i_iad_b, q_iad_b;
-   wire [15:0] i_out_a, q_out_a, i_out_b, q_out_b;
-   
-   wire        enable_hb1, enable_hb2; // Correspond to std firmware settings
-   wire [7:0]  cic_decim;              // for combined CIC/HB decimator
-   wire [9:0]  decim_rate;             // Reconstructed original decimation setting
-   
-   setting_reg #(.my_addr(`DSP_CORE_RX_BASE+0)) sr_0
-     (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out(phase_inc),.changed());
-   
-   setting_reg #(.my_addr(`DSP_CORE_RX_BASE+1)) sr_1
-     (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out({scale_i,scale_q}),.changed());
-   
-   setting_reg #(.my_addr(`DSP_CORE_RX_BASE+2)) sr_2
-     (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out({enable_hb1,enable_hb2,cic_decim}),.changed());
-
-   rx_dcoffset #(.WIDTH(14),.ADDR(`DSP_CORE_RX_BASE+6)) rx_dcoffset_a
-     (.clk(clk),.rst(rst),.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .adc_in(adc_a),.adc_out(adc_a_ofs));
-   
-   rx_dcoffset #(.WIDTH(14),.ADDR(`DSP_CORE_RX_BASE+7)) rx_dcoffset_b
-     (.clk(clk),.rst(rst),.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .adc_in(adc_b),.adc_out(adc_b_ofs));
-
-`ifdef MUXCTRL
-   wire [3:0]  muxctrl;
-   setting_reg #(.my_addr(`DSP_CORE_RX_BASE+8)) sr_8
-     (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out(muxctrl),.changed());
-`endif
-   
-   wire [1:0] gpio_ena;
-   setting_reg #(.my_addr(`DSP_CORE_RX_BASE+9)) sr_9
-     (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out(gpio_ena),.changed());
-
-   // The TVRX connects to what is called adc_b, thus A and B are
-   // swapped throughout the design.
-   //
-   // In the interest of expediency and keeping the s/w sane, we just remap them here.
-   // The I & Q fields are mapped the same:
-   // 0 -> "the real A" (as determined by the TVRX)
-   // 1 -> "the real B"
-   // 2 -> const zero
-
-`ifdef MUXCTRL   
-   always @(posedge clk)
-     case(muxctrl[1:0])		// The I mapping
-       0: adc_i <= adc_b_ofs;	// "the real A"
-       1: adc_i <= adc_a_ofs;
-       2: adc_i <= 0;
-       default: adc_i <= 0;
-     endcase // case(muxctrl[1:0])
-          
-   always @(posedge clk)
-     case(muxctrl[3:2])		// The Q mapping
-       0: adc_q <= adc_b_ofs;	// "the real A"
-       1: adc_q <= adc_a_ofs;
-       2: adc_q <= 0;
-       default: adc_q <= 0;
-     endcase // case(muxctrl[3:2])
-`else // !`ifdef MUXCTRL
-   always @(posedge clk)
-     begin
-	adc_i <= adc_a_ofs;
-	adc_q <= adc_b_ofs;
-     end
-`endif // !`ifdef MUXCTRL
-   
-   always @(posedge clk)
-     if(rst)
-       phase <= 0;
-     else if(~run)
-       phase <= 0;
-     else
-       phase <= phase + phase_inc;
-
-   MULT18X18S mult_i
-     (.P(prod_i),    // 36-bit multiplier output
-      .A({{4{adc_i[13]}},adc_i} ),    // 18-bit multiplier input
-      .B({{2{scale_i[15]}},scale_i}),    // 18-bit multiplier input
-      .C(clk),    // Clock input
-      .CE(1),  // Clock enable input
-      .R(rst)     // Synchronous reset input
-      );
-
-   MULT18X18S mult_q
-     (.P(prod_q),    // 36-bit multiplier output
-      .A({{4{adc_q[13]}},adc_q} ),    // 18-bit multiplier input
-      .B({{2{scale_q[15]}},scale_q}),    // 18-bit multiplier input
-      .C(clk),    // Clock input
-      .CE(1),  // Clock enable input
-      .R(rst)     // Synchronous reset input
-      ); 
-
-   
-   // Route I,0 to first CORDIC
-   cordic_z24 #(.bitwidth(24))
-     cordic_a(.clock(clk), .reset(rst), .enable(run),
-	      .xi(prod_i[24:1]),. yi(0), .zi(phase[31:8]),
-	      .xo(i_cordic_a),.yo(q_cordic_a),.zo() );
-
-   // Route Q,0 to second CORDIC
-   cordic_z24 #(.bitwidth(24))
-     cordic_b(.clock(clk), .reset(rst), .enable(run),
-	      .xi(prod_q[24:1]),. yi(0), .zi(phase[31:8]),
-	      .xo(i_cordic_b),.yo(q_cordic_b),.zo() );
-
-   // Reconstruct original decimation rate from standard firmware settings
-   assign decim_rate = enable_hb2 ? (enable_hb1 ? {cic_decim,2'b0} : 
-                                                  {1'b0,cic_decim,1'b0 }) :
-				    cic_decim;
-
-   cic_strober #(.WIDTH(10)) // Convenient reuse of strobe generator
-   cic_strober(.clock(clk),.reset(rst),.enable(run),.rate(decim_rate),
-	       .strobe_fast(1),.strobe_slow(strobe_iad) );
-
-   wire       strobe_iad_o;
-   
-   integrate #(.INPUTW(24),.ACCUMW(32),.OUTPUTW(32)) integrator_i_a
-     (.clk_i(clk),.rst_i(rst),.ena_i(run),
-      .dump_i(strobe_iad),.data_i(i_cordic_a),
-      .stb_o(strobe_iad_o),.integ_o(i_iad_a) );
-
-   integrate #(.INPUTW(24),.ACCUMW(32),.OUTPUTW(32)) integrator_q_a
-     (.clk_i(clk),.rst_i(rst),.ena_i(run),
-      .dump_i(strobe_iad),.data_i(q_cordic_a),
-      .stb_o(),.integ_o(q_iad_a) );
-   
-   integrate #(.INPUTW(24),.ACCUMW(32),.OUTPUTW(32)) integrator_i_b
-     (.clk_i(clk),.rst_i(rst),.ena_i(run),
-      .dump_i(strobe_iad),.data_i(i_cordic_b),
-      .stb_o(),.integ_o(i_iad_b) );
-
-   integrate #(.INPUTW(24),.ACCUMW(32),.OUTPUTW(32)) integrator_q_b
-     (.clk_i(clk),.rst_i(rst),.ena_i(run),
-      .dump_i(strobe_iad),.data_i(q_cordic_b),
-      .stb_o(),.integ_o(q_iad_b) );
-   
-   round #(.bits_in(32),.bits_out(16)) round_iout_a (.in(i_iad_a),.out(i_out_a));
-   round #(.bits_in(32),.bits_out(16)) round_qout_a (.in(q_iad_a),.out(q_out_a));
-   round #(.bits_in(32),.bits_out(16)) round_iout_b (.in(i_iad_b),.out(i_out_b));
-   round #(.bits_in(32),.bits_out(16)) round_qout_b (.in(q_iad_b),.out(q_out_b));
-
-   reg [31:0]  sample_out_a, sample_out_b, sample_out;
-   reg 	       stb_d1, stb_d2, stb_d3, stb_d4, stb_d5;
-   reg         strobe_out;
-   
-   // Register samples on strobe_iad
-   // Output A on d1
-   // Output B on d5
-   always @(posedge clk)
-     begin
-	stb_d1 <= strobe_iad_o;
-	stb_d2 <= stb_d1;
-	stb_d3 <= stb_d2;
-	stb_d4 <= stb_d3;
-	stb_d5 <= stb_d4;
-     end
-   
-   always @(posedge clk)
-     if (strobe_iad_o)
-       begin	
-	  // Streaming GPIO
-	  // io_rx[15] => I channel LSB if gpio_ena[0] high
-	  // io_rx[14] => Q channel LSB if gpio_ena[1] high
-	  sample_out_a <= {i_out_a[15:1], gpio_ena[0] ? io_rx[15] : i_out_a[0],
-			   q_out_a[15:1], gpio_ena[1] ? io_rx[14] : q_out_a[0] };
-	  sample_out_b <= {i_out_b[15:1], gpio_ena[0] ? io_rx[15] : i_out_b[0],
-			   q_out_b[15:1], gpio_ena[1] ? io_rx[14] : q_out_b[0] };
-       end
-
-   always @(posedge clk)
-     begin
-	if (stb_d1)
-	  sample <= sample_out_a;
-	else if (stb_d5)
-	  sample <= sample_out_b;
-	strobe_out <= stb_d1|stb_d5;
-     end
-
-   assign strobe = strobe_out;
-   assign debug = 0;
-      
-endmodule // dsp_core_rx
diff --git a/fpga/usrp2/top/u2_rev3_2rx_iad/dsp_core_tb.sav b/fpga/usrp2/top/u2_rev3_2rx_iad/dsp_core_tb.sav
deleted file mode 100644
index 12f746860..000000000
--- a/fpga/usrp2/top/u2_rev3_2rx_iad/dsp_core_tb.sav
+++ /dev/null
@@ -1,106 +0,0 @@
-[size] 1680 975
-[pos] -1 -1
-*-17.007835 70679400 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
-[treeopen] dsp_core_tb.
-@200
--SYSCON
-@28
-dsp_core_tb.clk
-dsp_core_tb.rst
-dsp_core_tb.run
-@200
--
--Settings Bus
-@22
-dsp_core_tb.set_addr[7:0]
-@24
-dsp_core_tb.set_data[31:0]
-@28
-dsp_core_tb.set_stb
-@200
--
--RX DSP CORE
-@22
-dsp_core_tb.rx_path.adc_a[13:0]
-dsp_core_tb.rx_path.adc_b[13:0]
-@28
-dsp_core_tb.rx_path.adc_ovf_a
-dsp_core_tb.rx_path.adc_ovf_b
-@22
-dsp_core_tb.rx_path.io_rx[15:0]
-@200
--
-@22
-dsp_core_tb.rx_path.sample[31:0]
-@28
-dsp_core_tb.rx_path.strobe
-@200
--
-@22
-dsp_core_tb.rx_path.phase_inc[31:0]
-dsp_core_tb.rx_path.scale_i[15:0]
-dsp_core_tb.rx_path.scale_q[15:0]
-@28
-dsp_core_tb.rx_path.enable_hb1
-dsp_core_tb.rx_path.enable_hb2
-@22
-dsp_core_tb.rx_path.cic_decim[7:0]
-dsp_core_tb.rx_path.adc_a_ofs[13:0]
-dsp_core_tb.rx_path.adc_b_ofs[13:0]
-dsp_core_tb.rx_path.muxctrl[3:0]
-@200
--
-@22
-dsp_core_tb.rx_path.adc_i[13:0]
-dsp_core_tb.rx_path.adc_q[13:0]
-dsp_core_tb.rx_path.phase[31:0]
-dsp_core_tb.rx_path.prod_i[35:0]
-dsp_core_tb.rx_path.prod_q[35:0]
-@8420
-dsp_core_tb.rx_path.i_cordic_a[23:0]
-dsp_core_tb.rx_path.q_cordic_a[23:0]
-dsp_core_tb.rx_path.i_cordic_b[23:0]
-dsp_core_tb.rx_path.q_cordic_b[23:0]
-@22
-dsp_core_tb.rx_path.decim_rate[9:0]
-@28
-dsp_core_tb.rx_path.strobe_iad
-@22
-dsp_core_tb.rx_path.i_iad_a[31:0]
-dsp_core_tb.rx_path.q_iad_a[31:0]
-@23
-dsp_core_tb.rx_path.i_iad_b[31:0]
-@22
-dsp_core_tb.rx_path.q_iad_b[31:0]
-@28
-dsp_core_tb.rx_path.strobe_iad_o
-@8420
-dsp_core_tb.rx_path.i_out_a[15:0]
-dsp_core_tb.rx_path.q_out_a[15:0]
-dsp_core_tb.rx_path.i_out_b[15:0]
-dsp_core_tb.rx_path.q_out_b[15:0]
-@28
-dsp_core_tb.rx_path.gpio_ena[1:0]
-@22
-dsp_core_tb.rx_path.sample_out_a[31:0]
-dsp_core_tb.rx_path.sample_out_b[31:0]
-dsp_core_tb.rx_path.sample[31:0]
-@28
-dsp_core_tb.rx_path.strobe_out
-dsp_core_tb.rx_path.stb_d1
-dsp_core_tb.rx_path.stb_d2
-dsp_core_tb.rx_path.stb_d3
-dsp_core_tb.rx_path.stb_d4
-dsp_core_tb.rx_path.stb_d5
-@200
--
--FIFO Bus
-@22
-dsp_core_tb.master_time[31:0]
-dsp_core_tb.wr_dat[31:0]
-@28
-dsp_core_tb.wr_done
-dsp_core_tb.wr_error
-dsp_core_tb.wr_full
-dsp_core_tb.wr_ready
-dsp_core_tb.wr_write
diff --git a/fpga/usrp2/top/u2_rev3_2rx_iad/dsp_core_tb.v b/fpga/usrp2/top/u2_rev3_2rx_iad/dsp_core_tb.v
deleted file mode 100644
index d947df40a..000000000
--- a/fpga/usrp2/top/u2_rev3_2rx_iad/dsp_core_tb.v
+++ /dev/null
@@ -1,233 +0,0 @@
-`timescale 1ns / 100ps
-
-module dsp_core_tb;
-
-///////////////////////////////////////////////////////////////////////////////////
-// Sim-wide wires/busses                                                         //
-///////////////////////////////////////////////////////////////////////////////////
-   
-   // System control bus
-   reg                clk = 0;
-   reg                rst = 1;
-   
-   // Configuration bus
-   reg                set_stb = 0;  
-   reg          [7:0] set_addr = 0; 
-   reg         [31:0] set_data = 0; 
-
-   // ADC input bus
-   wire signed [13:0] adc_a;
-   wire signed [13:0] adc_b;
-   wire               adc_ovf_a;
-   wire               adc_ovf_b;
-   
-   // RX sample bus
-   reg                run = 1;
-   wire        [31:0] sample;
-   wire               stb;
-   
-///////////////////////////////////////////////////////////////////////////////////
-// Simulation control                                                            //
-///////////////////////////////////////////////////////////////////////////////////
-   
-   // Set up output files
-   initial begin
-      $dumpfile("dsp_core_tb.vcd");
-      $dumpvars(0,dsp_core_tb);
-   end
-
-   // Update display every 10 us
-   always #1000 $monitor("Time in us ",$time/1000);
-
-   // Generate master clock 50% @ 100 MHz
-   always
-     #5 clk = ~clk;
-
-///////////////////////////////////////////////////////////////////////////////////
-// Unit(s) under test                                                            //
-///////////////////////////////////////////////////////////////////////////////////
-   
-   reg [13:0] amplitude = 13'h1fff;
-   reg [15:0] impulse_len = 0;
-   reg [15:0] zero_len = 0;
-   reg 	      adc_ena = 0;
-
-   initial #500 @(posedge clk) adc_ena = 1;
-
-   impulse adc
-     (.clk(clk),.rst(rst),.ena(adc_ena),
-      .dc_offset_a(0),.dc_offset_b(0),
-      .amplitude(amplitude),
-      .impulse_len(impulse_len),.zero_len(zero_len),
-      .adc_a(adc_a),.adc_b(adc_b),
-      .adc_ovf_a(adc_ovf_a),.adc_ovf_b(adc_ovf_b) );
-
-   initial rx_path.rx_dcoffset_a.integrator = 0; // so sim doesn't propagate X's
-   initial rx_path.rx_dcoffset_b.integrator = 0; // generated before reset
-   dsp_core_rx rx_path
-     (.clk(clk),.rst(rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .adc_a(adc_a),.adc_ovf_a(adc_ovf_a),
-      .adc_b(adc_b),.adc_ovf_b(adc_ovf_b),
-      .io_rx(16'b0),
-      .run(adc_ena),.sample(sample),.strobe(stb),
-      .debug() );
-
-   reg  [31:0] master_time = 0;
-   always @(posedge clk)
-     master_time <= master_time + 1;
-
-   reg         wr_ready    = 1;
-   reg         wr_full     = 0;
-
-   wire [31:0] wr_dat;
-   wire        wr_write;
-   wire        wr_done;
-   wire        wr_error;
-   wire [15:0] fifo_occupied;
-   wire        fifo_full;
-   wire        fifo_empty;
-   
-   rx_control rx_buffer
-    (.clk(clk),.rst(rst),
-     .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-     .master_time(master_time),
-     .overrun(), // unconnected output
-     .wr_dat_o(wr_dat),
-     .wr_write_o(wr_write),
-     .wr_done_o(wr_done),
-     .wr_error_o(wr_error),
-     .wr_ready_i(wr_ready),
-     .wr_full_i(wr_full),
-     .sample(sample),
-     .run(), // unconnected output, supposed to drive 'run'
-     .strobe(stb),
-     .fifo_occupied(fifo_occupied),
-     .fifo_full(fifo_full),
-     .fifo_empty(fifo_empty),
-     .debug_rx() // unconnected output
-     );
-
-
-   
-///////////////////////////////////////////////////////////////////////////////////
-// Simulation output/checking                                                    //
-///////////////////////////////////////////////////////////////////////////////////
-
-   integer rx_file;
-   
-   initial
-     rx_file = $fopen("rx.dat", "wb");
-   
-   always @(posedge clk)
-     begin
-	// Write RX sample I&Q in format Octave can load
-	if (stb)
-	  begin
-	     $fwrite(rx_file, sample[31:16]);
-	     $fputc(32, rx_file);
-	     $fwrite(rx_file, sample[15:0]);
-	     $fputc(13, rx_file);
-	  end
-     end
-   
-///////////////////////////////////////////////////////////////////////////////////
-// Tasks                                                                         //
-///////////////////////////////////////////////////////////////////////////////////
-
-   task power_on;
-     begin
-	@(posedge clk)
-	  rst = #1 1'b1;
-	@(posedge clk)
-	  rst = #1 1'b0;
-     end
-   endtask // power_on
-   
-   task set_impulse_len;
-      input [15:0] len;
-      @(posedge clk) impulse_len = len-1;
-   endtask
- 
-   task set_zero_len;
-      input [15:0] len;
-      @(posedge clk) zero_len = len-1;
-   endtask
-
-   // Strobe configuration bus with addr, data
-   task write_cfg_register;
-      input [7:0]  regno;
-      input [31:0] value;
-      
-      begin
-	 @(posedge clk);
-	 set_addr <= regno;
-	 set_data <= value;
-	 set_stb  <= 1'b1;
-	 @(posedge clk);
-	 set_stb  <= 1'b0;
-      end
-   endtask // write_cfg_register
-
-   // Set RX DDC frequency
-   task set_ddc_freq;
-      input [31:0] freq;
-
-      write_cfg_register(160, freq);
-   endtask // set_ddc_freq
-
-   // Set RX IQ scaling registers
-   task set_rx_scale_iq;
-      input [15:0] scale_i;
-      input [15:0] scale_q;
-
-      write_cfg_register(161, {scale_i,scale_q});
-   endtask // set_rx_scale_iq
-   
-   // Set RX MUX control
-   task set_rx_muxctrl;
-      input [3:0] muxctrl;
-
-      write_cfg_register(168, muxctrl);
-   endtask // set_rx_muxctrl
-   
-   // Set RX CIC decim and halfband enables
-   task set_decim;
-      input hb1_ena;
-      input hb2_ena;
-      input [7:0] decim;
-
-      write_cfg_register(162, {hb1_ena,hb2_ena,decim});
-   endtask // set_decim
-      
-   
-///////////////////////////////////////////////////////////////////////////////////
-// Individual tests                                                              //
-///////////////////////////////////////////////////////////////////////////////////
-
-   task test_rx;
-      begin
-	 set_impulse_len(10);
-	 set_zero_len(990);
-	 set_rx_muxctrl(1);
-	 set_ddc_freq(32'h10000000);
-	 set_rx_scale_iq(1243, 1243);
-	 set_decim(1, 1, 1);
-
-	 #100000 $finish;
-      end
-   endtask // test_rx
-   
-      
-///////////////////////////////////////////////////////////////////////////////////
-// Top-level test                                                                //
-///////////////////////////////////////////////////////////////////////////////////
-
-   // Execute tests
-   initial
-     begin
-	power_on();
-	test_rx();
-     end
-
-endmodule // dsp_core_tb
diff --git a/fpga/usrp2/top/u2_rev3_2rx_iad/impulse.v b/fpga/usrp2/top/u2_rev3_2rx_iad/impulse.v
deleted file mode 100644
index fc5e3c1ed..000000000
--- a/fpga/usrp2/top/u2_rev3_2rx_iad/impulse.v
+++ /dev/null
@@ -1,68 +0,0 @@
-module impulse
-  (input clk,
-   input rst,
-   input ena,
-   
-   input [13:0] dc_offset_a,
-   input [13:0] dc_offset_b,
-   input [13:0] amplitude,
-   input [15:0] impulse_len,
-   input [15:0] zero_len,
-
-   output [13:0] adc_a,
-   output [13:0] adc_b,
-   output        adc_ovf_a,
-   output        adc_ovf_b
-   );
-
-   reg [13:0] adc_a_int = 0;
-   reg [13:0] adc_b_int = 0;
-   
-   reg [15:0] count;
-
-   localparam ST_ZERO = 0;
-   localparam ST_HIGH = 1;
-   reg 	      state;
-   
-   always @(posedge clk)
-     if (rst | ~ena)
-       begin
-	  adc_a_int <= 0;
-	  adc_b_int <= 0;
-	  count <= 0;
-	  state <= ST_ZERO;
-       end
-     else
-       case(state)
-	 ST_ZERO:
-	   if (count == zero_len)
-	     begin
-		adc_a_int <= amplitude;
-		adc_b_int <= amplitude >> 2;
-		state <= ST_HIGH;
-		count <= 0;
-	     end
-	   else
-	     count <= count + 1;
-
-	 ST_HIGH:
-	   if (count == impulse_len)
-	     begin
-		adc_a_int <= 0;
-		adc_b_int <= 0;
-		state <= ST_ZERO;
-		count <= 0;
-	     end
-	   else
-	     count <= count + 1;
-
-       endcase // case (state)
-
-   assign adc_a = adc_a_int + dc_offset_a;
-   assign adc_b = adc_b_int + dc_offset_b;
-
-   // Ignore for now
-   assign adc_ovf_a = 0;
-   assign adc_ovf_b = 0;
-
-endmodule // impulse
diff --git a/fpga/usrp2/top/u2_rev3_2rx_iad/u2_core.v b/fpga/usrp2/top/u2_rev3_2rx_iad/u2_core.v
deleted file mode 100755
index 3d96a4e0e..000000000
--- a/fpga/usrp2/top/u2_rev3_2rx_iad/u2_core.v
+++ /dev/null
@@ -1,789 +0,0 @@
-// ////////////////////////////////////////////////////////////////////////////////
-// Module Name:    u2_core
-// ////////////////////////////////////////////////////////////////////////////////
-
-module u2_core
-  #(parameter RAM_SIZE=32768)
-  (// Clocks
-   input dsp_clk,
-   input wb_clk,
-   output clock_ready,
-   input clk_to_mac,
-   input pps_in,
-   
-   // Misc, debug
-   output [7:0] leds,
-   output [31:0] debug,
-   output [1:0] debug_clk,
-
-   // Expansion
-   input exp_pps_in,
-   output exp_pps_out,
-   
-   // GMII
-   //   GMII-CTRL
-   input GMII_COL,
-   input GMII_CRS,
-
-   //   GMII-TX
-   output [7:0] GMII_TXD,
-   output GMII_TX_EN,
-   output GMII_TX_ER,
-   output GMII_GTX_CLK,
-   input GMII_TX_CLK,  // 100mbps clk
-
-   //   GMII-RX
-   input [7:0] GMII_RXD,
-   input GMII_RX_CLK,
-   input GMII_RX_DV,
-   input GMII_RX_ER,
-
-   //   GMII-Management
-   inout MDIO,
-   output MDC,
-   input PHY_INTn,   // open drain
-   output PHY_RESETn,
-
-   // SERDES
-   output ser_enable,
-   output ser_prbsen,
-   output ser_loopen,
-   output ser_rx_en,
-   
-   output ser_tx_clk,
-   output [15:0] ser_t,
-   output ser_tklsb,
-   output ser_tkmsb,
-
-   input ser_rx_clk,
-   input [15:0] ser_r,
-   input ser_rklsb,
-   input ser_rkmsb,
-   
-   // CPLD interface
-   output cpld_start,
-   output cpld_mode,
-   output cpld_done,
-   input cpld_din,
-   input cpld_clk,
-   input cpld_detached,
-   output cpld_misc,
-   input cpld_init_b,
-   input por,
-   output config_success,
-   
-   // ADC
-   input [13:0] adc_a,
-   input adc_ovf_a,
-   output adc_on_a,
-   output adc_oe_a,
-   
-   input [13:0] adc_b,
-   input adc_ovf_b,
-   output adc_on_b,
-   output adc_oe_b,
-   
-   // DAC
-   output [15:0] dac_a,
-   output [15:0] dac_b,
-
-   // I2C
-   input scl_pad_i,
-   output scl_pad_o,
-   output scl_pad_oen_o,
-   input sda_pad_i,
-   output sda_pad_o,
-   output sda_pad_oen_o,
-   
-   // Clock Gen Control
-   output [1:0] clk_en,
-   output [1:0] clk_sel,
-   input clk_func,        // FIXME is an input to control the 9510
-   input clk_status,
-
-   // Generic SPI
-   output sclk,
-   output mosi,
-   input miso,
-   output sen_clk,
-   output sen_dac,
-   output sen_tx_db,
-   output sen_tx_adc,
-   output sen_tx_dac,
-   output sen_rx_db,
-   output sen_rx_adc,
-   output sen_rx_dac,
-   
-   // GPIO to DBoards
-   inout [15:0] io_tx,
-   inout [15:0] io_rx,
-
-   // External RAM
-   inout [17:0] RAM_D,
-   output [18:0] RAM_A,
-   output RAM_CE1n,
-   output RAM_CENn,
-   output RAM_CLK,
-   output RAM_WEn,
-   output RAM_OEn,
-   output RAM_LDn,
-   
-   // Debug stuff
-   output uart_tx_o, 
-   input uart_rx_i,
-   output uart_baud_o,
-   input sim_mode,
-   input [3:0] clock_divider
-   );
-   
-   wire [7:0] 	set_addr;
-   wire [31:0] 	set_data;
-   wire 	set_stb;
-   
-   wire 	ram_loader_done;
-   wire 	ram_loader_rst, wb_rst, dsp_rst;
-
-   wire [31:0] 	status, status_b0, status_b1, status_b2, status_b3, status_b4, status_b5, status_b6, status_b7;
-   wire 	bus_error, spi_int, i2c_int, pps_int, timer_int, buffer_int, proc_int, overrun, underrun, uart_tx_int, uart_rx_int;
-
-   wire [31:0] 	debug_gpio_0, debug_gpio_1;
-   wire [31:0] 	atr_lines;
-
-   wire [31:0] 	debug_rx, debug_mac0, debug_mac1, debug_tx_dsp, debug_txc, 
-		debug_serdes0, debug_serdes1, debug_serdes2, debug_rx_dsp;
-
-   wire [15:0] 	ser_rx_occ, ser_tx_occ, dsp_rx_occ, dsp_tx_occ, eth_rx_occ, eth_tx_occ, eth_rx_occ2;
-   wire 	ser_rx_full, ser_tx_full, dsp_rx_full, dsp_tx_full, eth_rx_full, eth_tx_full, eth_rx_full2;
-   wire 	ser_rx_empty, ser_tx_empty, dsp_rx_empty, dsp_tx_empty, eth_rx_empty, eth_tx_empty, eth_rx_empty2;
-	
-   wire 	serdes_link_up;
-   wire 	epoch;
-   
-   // ///////////////////////////////////////////////////////////////////////////////////////////////
-   // Wishbone Single Master INTERCON
-   localparam 	dw = 32;  // Data bus width
-   localparam 	aw = 16;  // Address bus width, for byte addressibility, 16 = 64K byte memory space
-   localparam	sw = 4;   // Select width -- 32-bit data bus with 8-bit granularity.  
-   
-   wire [dw-1:0] m0_dat_o, m0_dat_i;
-   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, s10_dat_o, s10_dat_i, s11_dat_i, s11_dat_o,
-		 s12_dat_i, s12_dat_o, s13_dat_i, s13_dat_o, s14_dat_i, s14_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,s10_adr,s11_adr,s12_adr, s13_adr, s14_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,s10_sel,s11_sel,s12_sel, s13_sel, s14_sel;
-   wire 	 m0_ack,s0_ack,s1_ack,s2_ack,s3_ack,s4_ack,s5_ack,s6_ack,s7_ack,s8_ack,s9_ack,s10_ack,s11_ack,s12_ack, s13_ack, s14_ack;
-   wire 	 m0_stb,s0_stb,s1_stb,s2_stb,s3_stb,s4_stb,s5_stb,s6_stb,s7_stb,s8_stb,s9_stb,s10_stb,s11_stb,s12_stb, s13_stb, s14_stb;
-   wire 	 m0_cyc,s0_cyc,s1_cyc,s2_cyc,s3_cyc,s4_cyc,s5_cyc,s6_cyc,s7_cyc,s8_cyc,s9_cyc,s10_cyc,s11_cyc,s12_cyc, s13_cyc, s14_cyc;
-   wire 	 m0_err,s0_err,s1_err,s2_err,s3_err,s4_err,s5_err,s6_err,s7_err,s8_err,s9_err,s10_err,s11_err,s12_err, s13_err, s14_err;
-   wire 	 m0_rty,s0_rty,s1_rty,s2_rty,s3_rty,s4_rty,s5_rty,s6_rty,s7_rty,s8_rty,s9_rty,s10_rty,s11_rty,s12_rty, s13_rty, s14_rty;
-   wire 	 m0_we,s0_we,s1_we,s2_we,s3_we,s4_we,s5_we,s6_we,s7_we,s8_we,s9_we,s10_we,s11_we,s12_we,s13_we, s14_we;
-   
-   wb_1master #(.s0_addr_w(1),.s0_addr(1'b0),.s1_addr_w(2),.s1_addr(2'b10),
-		.s215_addr_w(6),.s2_addr(6'b1100_00),.s3_addr(6'b1100_01),.s4_addr(6'b1100_10),
-		.s5_addr(6'b1100_11),.s6_addr(6'b1101_00),.s7_addr(6'b1101_01),.s8_addr(6'b1101_10),
-		.s9_addr(6'b1101_11),.s10_addr(6'b1110_00),.s11_addr(6'b1110_01),.s12_addr(6'b1110_10),
-		.s13_addr(6'b1110_11),.s14_addr(6'b1111_00),.s15_addr(6'b1111_01),
-		.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),
-      .m0_adr_i(m0_adr),.m0_sel_i(m0_sel),.m0_we_i(m0_we),.m0_cyc_i(m0_cyc),.m0_stb_i(m0_stb),
-      .s0_dat_o(s0_dat_o),.s0_adr_o(s0_adr),.s0_sel_o(s0_sel),.s0_we_o	(s0_we),.s0_cyc_o(s0_cyc),.s0_stb_o(s0_stb),
-      .s0_dat_i(s0_dat_i),.s0_ack_i(s0_ack),.s0_err_i(s0_err),.s0_rty_i(s0_rty),
-      .s1_dat_o(s1_dat_o),.s1_adr_o(s1_adr),.s1_sel_o(s1_sel),.s1_we_o	(s1_we),.s1_cyc_o(s1_cyc),.s1_stb_o(s1_stb),
-      .s1_dat_i(s1_dat_i),.s1_ack_i(s1_ack),.s1_err_i(s1_err),.s1_rty_i(s1_rty),
-      .s2_dat_o(s2_dat_o),.s2_adr_o(s2_adr),.s2_sel_o(s2_sel),.s2_we_o	(s2_we),.s2_cyc_o(s2_cyc),.s2_stb_o(s2_stb),
-      .s2_dat_i(s2_dat_i),.s2_ack_i(s2_ack),.s2_err_i(s2_err),.s2_rty_i(s2_rty),
-      .s3_dat_o(s3_dat_o),.s3_adr_o(s3_adr),.s3_sel_o(s3_sel),.s3_we_o	(s3_we),.s3_cyc_o(s3_cyc),.s3_stb_o(s3_stb),
-      .s3_dat_i(s3_dat_i),.s3_ack_i(s3_ack),.s3_err_i(s3_err),.s3_rty_i(s3_rty),
-      .s4_dat_o(s4_dat_o),.s4_adr_o(s4_adr),.s4_sel_o(s4_sel),.s4_we_o	(s4_we),.s4_cyc_o(s4_cyc),.s4_stb_o(s4_stb),
-      .s4_dat_i(s4_dat_i),.s4_ack_i(s4_ack),.s4_err_i(s4_err),.s4_rty_i(s4_rty),
-      .s5_dat_o(s5_dat_o),.s5_adr_o(s5_adr),.s5_sel_o(s5_sel),.s5_we_o	(s5_we),.s5_cyc_o(s5_cyc),.s5_stb_o(s5_stb),
-      .s5_dat_i(s5_dat_i),.s5_ack_i(s5_ack),.s5_err_i(s5_err),.s5_rty_i(s5_rty),
-      .s6_dat_o(s6_dat_o),.s6_adr_o(s6_adr),.s6_sel_o(s6_sel),.s6_we_o	(s6_we),.s6_cyc_o(s6_cyc),.s6_stb_o(s6_stb),
-      .s6_dat_i(s6_dat_i),.s6_ack_i(s6_ack),.s6_err_i(s6_err),.s6_rty_i(s6_rty),
-      .s7_dat_o(s7_dat_o),.s7_adr_o(s7_adr),.s7_sel_o(s7_sel),.s7_we_o	(s7_we),.s7_cyc_o(s7_cyc),.s7_stb_o(s7_stb),
-      .s7_dat_i(s7_dat_i),.s7_ack_i(s7_ack),.s7_err_i(s7_err),.s7_rty_i(s7_rty),
-      .s8_dat_o(s8_dat_o),.s8_adr_o(s8_adr),.s8_sel_o(s8_sel),.s8_we_o	(s8_we),.s8_cyc_o(s8_cyc),.s8_stb_o(s8_stb),
-      .s8_dat_i(s8_dat_i),.s8_ack_i(s8_ack),.s8_err_i(s8_err),.s8_rty_i(s8_rty),
-      .s9_dat_o(s9_dat_o),.s9_adr_o(s9_adr),.s9_sel_o(s9_sel),.s9_we_o	(s9_we),.s9_cyc_o(s9_cyc),.s9_stb_o(s9_stb),
-      .s9_dat_i(s9_dat_i),.s9_ack_i(s9_ack),.s9_err_i(s9_err),.s9_rty_i(s9_rty),
-      .s10_dat_o(s10_dat_o),.s10_adr_o(s10_adr),.s10_sel_o(s10_sel),.s10_we_o(s10_we),.s10_cyc_o(s10_cyc),.s10_stb_o(s10_stb),
-      .s10_dat_i(s10_dat_i),.s10_ack_i(s10_ack),.s10_err_i(s10_err),.s10_rty_i(s10_rty),
-      .s11_dat_o(s11_dat_o),.s11_adr_o(s11_adr),.s11_sel_o(s11_sel),.s11_we_o(s11_we),.s11_cyc_o(s11_cyc),.s11_stb_o(s11_stb),
-      .s11_dat_i(s11_dat_i),.s11_ack_i(s11_ack),.s11_err_i(s11_err),.s11_rty_i(s11_rty),
-      .s12_dat_o(s12_dat_o),.s12_adr_o(s12_adr),.s12_sel_o(s12_sel),.s12_we_o(s12_we),.s12_cyc_o(s12_cyc),.s12_stb_o(s12_stb),
-      .s12_dat_i(s12_dat_i),.s12_ack_i(s12_ack),.s12_err_i(s12_err),.s12_rty_i(s12_rty),
-      .s13_dat_o(s13_dat_o),.s13_adr_o(s13_adr),.s13_sel_o(s13_sel),.s13_we_o(s13_we),.s13_cyc_o(s13_cyc),.s13_stb_o(s13_stb),
-      .s13_dat_i(s13_dat_i),.s13_ack_i(s13_ack),.s13_err_i(s13_err),.s13_rty_i(s13_rty),
-      .s14_dat_o(s14_dat_o),.s14_adr_o(s14_adr),.s14_sel_o(s14_sel),.s14_we_o(s14_we),.s14_cyc_o(s14_cyc),.s14_stb_o(s14_stb),
-      .s14_dat_i(s14_dat_i),.s14_ack_i(s14_ack),.s14_err_i(s14_err),.s14_rty_i(s14_rty),
-      .s15_dat_i(0),.s15_ack_i(0),.s15_err_i(0),.s15_rty_i(0)  );
-   
-   //////////////////////////////////////////////////////////////////////////////////////////
-   // Reset Controller
-   system_control sysctrl (.wb_clk_i(wb_clk), // .por_i(por),
-			   .ram_loader_rst_o(ram_loader_rst),
-			   .wb_rst_o(wb_rst),
-			   .ram_loader_done_i(ram_loader_done));
-
-   assign 	 config_success = ram_loader_done;
-   reg 		 takeover = 0;
-
-   wire 	 cpld_start_int, cpld_mode_int, cpld_done_int;
-   
-   always @(posedge wb_clk)
-     if(ram_loader_done)
-       takeover = 1;
-   assign 	 cpld_misc = ~takeover;
-
-   wire 	 sd_clk, sd_csn, sd_mosi, sd_miso;
-   
-   assign 	 sd_miso = cpld_din;
-   assign 	 cpld_start = takeover ? sd_clk	: cpld_start_int;
-   assign 	 cpld_mode = takeover ? sd_csn : cpld_mode_int;
-   assign 	 cpld_done = takeover ? sd_mosi : cpld_done_int;
-   
-   // ///////////////////////////////////////////////////////////////////
-   // RAM Loader
-
-   wire [31:0] 	 ram_loader_dat, iwb_dat;
-   wire [15:0] 	 ram_loader_adr, iwb_adr;
-   wire [3:0] 	 ram_loader_sel;
-   wire 	 ram_loader_stb, ram_loader_we, ram_loader_ack;
-   wire 	 iwb_ack, iwb_stb;
-   ram_loader #(.AWIDTH(16),.RAM_SIZE(RAM_SIZE))
-     ram_loader (.clk_i(wb_clk),.rst_i(ram_loader_rst),
-		 // CPLD Interface
-		 .cfg_clk_i(cpld_clk),
-		 .cfg_data_i(cpld_din),
-		 .start_o(cpld_start_int),
-		 .mode_o(cpld_mode_int),
-		 .done_o(cpld_done_int),
-		 .detached_i(cpld_detached),
-		 // Wishbone Interface
-		 .wb_dat_o(ram_loader_dat),.wb_adr_o(ram_loader_adr),
-		 .wb_stb_o(ram_loader_stb),.wb_cyc_o(),.wb_sel_o(ram_loader_sel),
-		 .wb_we_o(ram_loader_we),.wb_ack_i(ram_loader_ack),
-		 .ram_loader_done_o(ram_loader_done));
-
-   // 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
-	   .iwb_stb_o(iwb_stb),.iwb_adr_o(iwb_adr),
-	   .iwb_dat_i(iwb_dat),.iwb_ack_i(iwb_ack),
-	   // 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),
-	   // Interrupts and exceptions
-	   .sys_int_i(proc_int),.sys_exc_i(bus_error) );
-   
-   assign 	 bus_error = m0_err | m0_rty;
-   
-   // Dual Ported RAM -- D-Port is Slave #0 on main Wishbone
-   // I-port connects directly to processor and ram loader
-
-   wire 	 flush_icache;
-   ram_harv_cache #(.AWIDTH(15),.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_stb_i(ram_loader_stb), .ram_loader_sel_i(ram_loader_sel),
-	     .ram_loader_we_i(ram_loader_we), .ram_loader_ack_o(ram_loader_ack),
-	     .ram_loader_done_i(ram_loader_done),
-	     
-	     .iwb_adr_i(iwb_adr[14:0]), .iwb_stb_i(iwb_stb),
-	     .iwb_dat_o(iwb_dat), .iwb_ack_o(iwb_ack),
-	     
-	     .dwb_adr_i(s0_adr[14:0]), .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));
-   
-   assign 	 s0_err = 1'b0;
-   assign 	 s0_rty = 1'b0;
-
-   setting_reg #(.my_addr(7)) sr_icache (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-					 .in(set_data),.out(),.changed(flush_icache));
-
-   // Buffer Pool, slave #1
-   wire 	 rd0_read, rd0_sop, rd0_error, rd0_done, rd0_eop;
-   wire 	 rd1_read, rd1_sop, rd1_error, rd1_done, rd1_eop;
-   wire 	 rd2_read, rd2_sop, rd2_error, rd2_done, rd2_eop;
-   wire 	 rd3_read, rd3_sop, rd3_error, rd3_done, rd3_eop;
-   wire [31:0] 	 rd0_dat, rd1_dat, rd2_dat, rd3_dat;
-
-   wire 	 wr0_write, wr0_done, wr0_error, wr0_ready, wr0_full;
-   wire 	 wr1_write, wr1_done, wr1_error, wr1_ready, wr1_full;
-   wire 	 wr2_write, wr2_done, wr2_error, wr2_ready, wr2_full;
-   wire 	 wr3_write, wr3_done, wr3_error, wr3_ready, wr3_full;
-   wire [31:0] 	 wr0_dat, wr1_dat, wr2_dat, wr3_dat;
-   
-   buffer_pool buffer_pool
-     (.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_dat_o(s1_dat_i),.wb_ack_o(s1_ack),.wb_err_o(s1_err),.wb_rty_o(s1_rty),
-   
-      .stream_clk(dsp_clk), .stream_rst(dsp_rst),
-      .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
-      .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_dat_i(wr0_dat), .wr0_write_i(wr0_write), .wr0_done_i(wr0_done),
-      .wr0_error_i(wr0_error), .wr0_ready_o(wr0_ready), .wr0_full_o(wr0_full),
-      .wr1_dat_i(wr1_dat), .wr1_write_i(wr1_write), .wr1_done_i(wr1_done),
-      .wr1_error_i(wr1_error), .wr1_ready_o(wr1_ready), .wr1_full_o(wr1_full),
-      .wr2_dat_i(wr2_dat), .wr2_write_i(wr2_write), .wr2_done_i(wr2_done),
-      .wr2_error_i(wr2_error), .wr2_ready_o(wr2_ready), .wr2_full_o(wr2_full),
-      .wr3_dat_i(wr3_dat), .wr3_write_i(wr3_write), .wr3_done_i(wr3_done),
-      .wr3_error_i(wr3_error), .wr3_ready_o(wr3_ready), .wr3_full_o(wr3_full),
-      // Read Interfaces
-      .rd0_dat_o(rd0_dat), .rd0_read_i(rd0_read), .rd0_done_i(rd0_done),
-      .rd0_error_i(rd0_error), .rd0_sop_o(rd0_sop), .rd0_eop_o(rd0_eop),
-      .rd1_dat_o(rd1_dat), .rd1_read_i(rd1_read), .rd1_done_i(rd1_done),
-      .rd1_error_i(rd1_error), .rd1_sop_o(rd1_sop), .rd1_eop_o(rd1_eop),
-      .rd2_dat_o(rd2_dat), .rd2_read_i(rd2_read), .rd2_done_i(rd2_done),
-      .rd2_error_i(rd2_error), .rd2_sop_o(rd2_sop), .rd2_eop_o(rd2_eop),
-      .rd3_dat_o(rd3_dat), .rd3_read_i(rd3_read), .rd3_done_i(rd3_done),
-      .rd3_error_i(rd3_error), .rd3_sop_o(rd3_sop), .rd3_eop_o(rd3_eop)
-      );
-
-   // SPI -- Slave #2
-   spi_top shared_spi
-     (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.wb_adr_i(s2_adr[4:0]),.wb_dat_i(s2_dat_o),
-      .wb_dat_o(s2_dat_i),.wb_sel_i(s2_sel),.wb_we_i(s2_we),.wb_stb_i(s2_stb),
-      .wb_cyc_i(s2_cyc),.wb_ack_o(s2_ack),.wb_err_o(s2_err),.wb_int_o(spi_int),
-      .ss_pad_o({sen_tx_db,sen_tx_adc,sen_tx_dac,sen_rx_db,sen_rx_adc,sen_rx_dac,sen_dac,sen_clk}),
-      .sclk_pad_o(sclk),.mosi_pad_o(mosi),.miso_pad_i(miso) );
-
-   assign 	 s2_rty = 1'b0;
-   
-   // I2C -- Slave #3
-   i2c_master_top #(.ARST_LVL(1)) 
-     i2c (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.arst_i(1'b0), 
-	  .wb_adr_i(s3_adr[4:2]),.wb_dat_i(s3_dat_o[7:0]),.wb_dat_o(s3_dat_i[7:0]),
-	  .wb_we_i(s3_we),.wb_stb_i(s3_stb),.wb_cyc_i(s3_cyc),
-	  .wb_ack_o(s3_ack),.wb_inta_o(i2c_int),
-	  .scl_pad_i(scl_pad_i),.scl_pad_o(scl_pad_o),.scl_padoen_o(scl_pad_oen_o),
-	  .sda_pad_i(sda_pad_i),.sda_pad_o(sda_pad_o),.sda_padoen_o(sda_pad_oen_o) );
-
-   assign 	 s3_dat_i[31:8] = 24'd0;
-   assign 	 s3_err = 1'b0;
-   assign 	 s3_rty = 1'b0;
-   
-   // GPIOs -- Slave #4
-   nsgpio nsgpio(.clk_i(wb_clk),.rst_i(wb_rst),
-		 .cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[3:0]),.we_i(s4_we),
-		 .dat_i(s4_dat_o),.dat_o(s4_dat_i),.ack_o(s4_ack),
-		 .atr(atr_lines),.debug_0(debug_gpio_0),.debug_1(debug_gpio_1),
-		 .gpio( {io_tx,io_rx} ) );
-   assign 	 s4_err = 1'b0;
-   assign 	 s4_rty = 1'b0;
-
-   // Buffer Pool Status -- Slave #5
-   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),
-      .word08(status),.word09({sim_mode,27'b0,clock_divider[3:0]}),.word10(32'b0),
-      .word11(32'b0),.word12(32'b0),.word13(32'b0),.word14(32'b0),.word15(32'b0)
-      );
-
-   assign 	 s5_err = 1'b0;
-   assign 	 s5_rty = 1'b0;
-
-   // Slave, #6 Ethernet MAC, see below
-   
-   // Settings Bus -- Slave #7
-   settings_bus settings_bus
-     (.wb_clk(wb_clk),.wb_rst(wb_rst),.wb_adr_i(s7_adr),.wb_dat_i(s7_dat_o),
-      .wb_stb_i(s7_stb),.wb_we_i(s7_we),.wb_ack_o(s7_ack),
-      .sys_clk(dsp_clk),.strobe(set_stb),.addr(set_addr),.data(set_data));
-   
-   assign 	 s7_err = 1'b0;
-   assign 	 s7_rty = 1'b0;
-   assign 	 s7_dat_i = 32'd0;
-
-   // Output control lines
-   wire [7:0] 	 clock_outs, serdes_outs, adc_outs;
-   assign 	 {clock_ready, clk_en[1:0], clk_sel[1:0]} = clock_outs[4:0];
-   assign 	 {ser_enable, ser_prbsen, ser_loopen, ser_rx_en} = serdes_outs[3:0];
-   assign 	 {adc_oe_a, adc_on_a, adc_oe_b, adc_on_b } = adc_outs[3:0];
-
-   wire 	 phy_reset;
-   assign 	 PHY_RESETn = ~phy_reset;
-   
-   setting_reg #(.my_addr(0)) sr_clk (.clk(wb_clk),.rst(wb_rst),.strobe(s7_ack),.addr(set_addr),
-				      .in(set_data),.out(clock_outs),.changed());
-   setting_reg #(.my_addr(1)) sr_ser (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-				      .in(set_data),.out(serdes_outs),.changed());
-   setting_reg #(.my_addr(2)) sr_adc (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-				      .in(set_data),.out(adc_outs),.changed());
-   setting_reg #(.my_addr(4)) sr_phy (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-				      .in(set_data),.out(phy_reset),.changed());
-
-   // /////////////////////////////////////////////////////////////////////////
-   //  LEDS
-   //    register 8 determines whether leds are controlled by SW or not
-   //    1 = controlled by HW, 0 = by SW
-   //    In Rev3 there are only 6 leds, and the highest one is on the ETH connector
-   
-   wire [7:0] 	 led_src, led_sw;
-   wire [7:0] 	 led_hw = {clk_status,serdes_link_up};
-   
-   setting_reg #(.my_addr(3)) sr_led (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-				      .in(set_data),.out(led_sw),.changed());
-   setting_reg #(.my_addr(8)) sr_led_src (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-					  .in(set_data),.out(led_src),.changed());
-
-   assign 	 leds = (led_src & led_hw) | (~led_src & led_sw);
-   
-   // /////////////////////////////////////////////////////////////////////////
-   // Ethernet MAC  Slave #6
-   
-   wire 	 Tx_mac_wa, Tx_mac_wr, Tx_mac_sop, Tx_mac_eop;
-   wire 	 Rx_mac_empty, Rx_mac_rd, Rx_mac_sop, Rx_mac_eop, Rx_mac_err;
-   wire [31:0] 	 Tx_mac_data, Rx_mac_data;
-   wire [1:0] 	 Tx_mac_BE, Rx_mac_BE;
-   wire 	 rst_mac;
-  
-   oneshot_2clk mac_rst_1shot (.clk_in(wb_clk),.in(wb_rst),.clk_out(clk_to_mac),.out(rst_mac));
-   
-   MAC_top #(.TX_FF_DEPTH(9), .RX_FF_DEPTH(11))
-     MAC_top
-       (.Clk_125M(clk_to_mac),.Clk_user(dsp_clk),
-	.rst_mac(rst_mac),.rst_user(dsp_rst),
-	.RST_I(wb_rst),.CLK_I(wb_clk),.STB_I(s6_stb),.CYC_I(s6_cyc),.ADR_I(s6_adr[8:2]),
-	.WE_I(s6_we),.DAT_I(s6_dat_o),.DAT_O(s6_dat_i),.ACK_O(s6_ack),
-	.Rx_mac_empty(Rx_mac_empty),.Rx_mac_rd(Rx_mac_rd),.Rx_mac_data(Rx_mac_data),.Rx_mac_BE(Rx_mac_BE),
-	.Rx_mac_sop(Rx_mac_sop),.Rx_mac_eop(Rx_mac_eop),.Rx_mac_err(Rx_mac_err),
-	.Tx_mac_wa(Tx_mac_wa),.Tx_mac_wr(Tx_mac_wr),.Tx_mac_data(Tx_mac_data),
-	.Tx_mac_BE(Tx_mac_BE),.Tx_mac_sop(Tx_mac_sop),.Tx_mac_eop(Tx_mac_eop),
-	.Gtx_clk(GMII_GTX_CLK),.Tx_clk(GMII_TX_CLK),.Tx_er(GMII_TX_ER),.Tx_en(GMII_TX_EN),.Txd(GMII_TXD),
-	.Rx_clk(GMII_RX_CLK),.Rx_er(GMII_RX_ER),.Rx_dv(GMII_RX_DV),.Rxd(GMII_RXD),
-	.Crs(GMII_CRS),.Col(GMII_COL),
-	.Mdio(MDIO),.Mdc(MDC),
-	.rx_fifo_occupied(eth_rx_occ2),.rx_fifo_full(eth_rx_full2),.rx_fifo_empty(eth_rx_empty2),
-	.tx_fifo_occupied(),.tx_fifo_full(),.tx_fifo_empty(),
-	.debug0(debug_mac0),.debug1(debug_mac1) );
-
-   assign 	 s6_err = 1'b0;
-   assign 	 s6_rty = 1'b0;
-
-   mac_rxfifo_int mac_rxfifo_int
-     (.clk(dsp_clk),.rst(dsp_rst),
-      .Rx_mac_empty(Rx_mac_empty),.Rx_mac_rd(Rx_mac_rd),.Rx_mac_data(Rx_mac_data),
-      .Rx_mac_BE(Rx_mac_BE),.Rx_mac_sop(Rx_mac_sop),
-      .Rx_mac_eop(Rx_mac_eop),.Rx_mac_err(Rx_mac_err),
-      .wr_dat_o(wr2_dat),.wr_write_o(wr2_write),.wr_done_o(wr2_done),
-      .wr_error_o(wr2_error),.wr_ready_i(wr2_ready),.wr_full_i(wr2_full),
-      .fifo_occupied(eth_rx_occ),.fifo_full(eth_rx_full),.fifo_empty(eth_rx_empty) );
-
-   mac_txfifo_int mac_txfifo_int
-     (.clk(dsp_clk),.rst(dsp_rst),.mac_clk(clk_to_mac),
-      .Tx_mac_wa(Tx_mac_wa),.Tx_mac_wr(Tx_mac_wr),.Tx_mac_data(Tx_mac_data),
-      .Tx_mac_BE(Tx_mac_BE),.Tx_mac_sop(Tx_mac_sop),.Tx_mac_eop(Tx_mac_eop),
-      .rd_dat_i(rd2_dat),.rd_read_o(rd2_read),.rd_done_o(rd2_done),
-      .rd_error_o(rd2_error),.rd_sop_i(rd2_sop),.rd_eop_i(rd2_eop),
-      .fifo_occupied(eth_tx_occ),.fifo_full(eth_tx_full),.fifo_empty(eth_tx_empty) );
-   
-   // /////////////////////////////////////////////////////////////////////////
-   // Interrupt Controller, Slave #8
-
-   wire [15:0] 	 irq={{4'b0, clk_status, serdes_link_up, uart_tx_int, uart_rx_int},
-		      {pps_int,overrun,underrun,PHY_INTn,i2c_int,spi_int,timer_int,buffer_int}};
-   
-   simple_pic #(.is(16),.dwidth(32)) simple_pic
-     (.clk_i(wb_clk),.rst_i(wb_rst),.cyc_i(s8_cyc),.stb_i(s8_stb),.adr_i(s8_adr[3:2]),
-      .we_i(s8_we),.dat_i(s8_dat_o),.dat_o(s8_dat_i),.ack_o(s8_ack),.int_o(proc_int),
-      .irq(irq) );
-   assign 	 s8_err = 0;
-   assign 	 s8_rty = 0;
- 	 
-   // /////////////////////////////////////////////////////////////////////////
-   // Master Timer, Slave #9
-
-   wire [31:0] 	 master_time;
-   timer timer
-     (.wb_clk_i(wb_clk),.rst_i(wb_rst),
-      .cyc_i(s9_cyc),.stb_i(s9_stb),.adr_i(s9_adr[4:2]),
-      .we_i(s9_we),.dat_i(s9_dat_o),.dat_o(s9_dat_i),.ack_o(s9_ack),
-      .sys_clk_i(dsp_clk),.master_time_i(master_time),.int_o(timer_int) );
-   assign 	 s9_err = 0;
-   assign 	 s9_rty = 0;
-
-   // /////////////////////////////////////////////////////////////////////////
-   // UART, Slave #10
-
-   simple_uart #(.TXDEPTH(3),.RXDEPTH(3)) uart  // depth of 3 is 128 entries
-     (.clk_i(wb_clk),.rst_i(wb_rst),
-      .we_i(s10_we),.stb_i(s10_stb),.cyc_i(s10_cyc),.ack_o(s10_ack),
-      .adr_i(s10_adr[4:2]),.dat_i(s10_dat_o),.dat_o(s10_dat_i),
-      .rx_int_o(uart_rx_int),.tx_int_o(uart_tx_int),
-      .tx_o(uart_tx_o),.rx_i(uart_rx_i),.baud_o(uart_baud_o));
-   
-   assign 	 s10_err = 0;
-   assign 	 s10_rty = 0;
-   
-   // /////////////////////////////////////////////////////////////////////////
-   // ATR Controller, Slave #11
-
-   wire 	 run_rx, run_tx;
-   reg 		 run_rx_d1;
-   always @(posedge dsp_clk)
-     run_rx_d1 <= run_rx;
-   
-   atr_controller atr_controller
-     (.clk_i(wb_clk),.rst_i(wb_rst),
-      .adr_i(s11_adr[5:0]),.sel_i(s11_sel),.dat_i(s11_dat_o),.dat_o(s11_dat_i),
-      .we_i(s11_we),.stb_i(s11_stb),.cyc_i(s11_cyc),.ack_o(s11_ack),
-      .run_rx(run_rx_d1),.run_tx(run_tx),.ctrl_lines(atr_lines) );
-   assign 	 s11_err = 0;
-   assign 	 s11_rty = 0;
-   
-   // //////////////////////////////////////////////////////////////////////////
-   // Time Sync, Slave #12 
-
-   reg 		 pps_posedge, pps_negedge, pps_pos_d1, pps_neg_d1;
-   always @(negedge dsp_clk) pps_negedge <= pps_in;
-   always @(posedge dsp_clk) pps_posedge <= pps_in;
-   always @(posedge dsp_clk) pps_pos_d1 <= pps_posedge;
-   always @(posedge dsp_clk) pps_neg_d1 <= pps_negedge;   
-   
-   wire 	 pps_o;
-   time_sync time_sync
-     (.wb_clk_i(wb_clk),.rst_i(wb_rst),
-      .cyc_i(s12_cyc),.stb_i(s12_stb),.adr_i(s12_adr[4:2]),
-      .we_i(s12_we),.dat_i(s12_dat_o),.dat_o(s12_dat_i),.ack_o(s12_ack),
-      .sys_clk_i(dsp_clk),.master_time_o(master_time),
-      .pps_posedge(pps_posedge),.pps_negedge(pps_negedge),
-      .exp_pps_in(exp_pps_in),.exp_pps_out(exp_pps_out),
-      .int_o(pps_int),.epoch_o(epoch),.pps_o(pps_o) );
-   assign 	 s12_err = 0;
-   assign 	 s12_rty = 0;
-
-   // /////////////////////////////////////////////////////////////////////////
-   // SD Card Reader / Writer, Slave #13
-
-   sd_spi_wb sd_spi_wb
-     (.clk(wb_clk),.rst(wb_rst),
-      .sd_clk(sd_clk),.sd_csn(sd_csn),.sd_mosi(sd_mosi),.sd_miso(sd_miso),
-      .wb_cyc_i(s13_cyc),.wb_stb_i(s13_stb),.wb_we_i(s13_we),
-      .wb_adr_i(s13_adr[3:2]),.wb_dat_i(s13_dat_o),.wb_dat_o(s13_dat_i),
-      .wb_ack_o(s13_ack) );
-   assign 	 s13_err = 0;
-   assign 	 s13_rty = 0;
-   // /////////////////////////////////////////////////////////////////////////
-   // DSP
-   wire [31:0] 	 sample_rx, sample_tx;
-   wire 	 strobe_rx, strobe_tx;
-
-   rx_control #(.FIFOSIZE(10)) rx_control
-     (.clk(dsp_clk), .rst(dsp_rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .master_time(master_time),.overrun(overrun),
-      .wr_dat_o(wr1_dat), .wr_write_o(wr1_write), .wr_done_o(wr1_done), .wr_error_o(wr1_error),
-      .wr_ready_i(wr1_ready), .wr_full_i(wr1_full),
-      .sample(sample_rx), .run(run_rx), .strobe(strobe_rx),
-      .fifo_occupied(dsp_rx_occ),.fifo_full(dsp_rx_full),.fifo_empty(dsp_rx_empty),
-      .debug_rx(debug_rx) );
-   
-   // dummy_rx dsp_core_rx
-   dsp_core_rx dsp_core_rx
-     (.clk(dsp_clk),.rst(dsp_rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .adc_a(adc_a),.adc_ovf_a(adc_ovf_a),.adc_b(adc_b),.adc_ovf_b(adc_ovf_b),
-      .io_rx(io_rx),.sample(sample_rx), .run(run_rx_d1), .strobe(strobe_rx),
-      .debug(debug_rx_dsp) );
-
-   tx_control #(.FIFOSIZE(10)) tx_control
-     (.clk(dsp_clk), .rst(dsp_rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .master_time(master_time),.underrun(underrun),
-      .rd_dat_i(rd1_dat), .rd_sop_i(rd1_sop), .rd_eop_i(rd1_eop),
-      .rd_read_o(rd1_read), .rd_done_o(rd1_done), .rd_error_o(rd1_error),
-      .sample(sample_tx), .run(run_tx), .strobe(strobe_tx),
-      .fifo_occupied(dsp_tx_occ),.fifo_full(dsp_tx_full),.fifo_empty(dsp_tx_empty),
-      .debug(debug_txc) );
-   
-   dsp_core_tx dsp_core_tx
-     (.clk(dsp_clk),.rst(dsp_rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .dac_a(dac_a),.dac_b(dac_b),
-      .sample(sample_tx), .run(run_tx), .strobe(strobe_tx), .debug(debug_tx_dsp) );
-
-   assign dsp_rst = wb_rst;
-
-   // ///////////////////////////////////////////////////////////////////////////////////
-   // SERDES
-
-   serdes #(.TXFIFOSIZE(9),.RXFIFOSIZE(9)) serdes
-     (.clk(dsp_clk),.rst(dsp_rst),
-      .ser_tx_clk(ser_tx_clk),.ser_t(ser_t),.ser_tklsb(ser_tklsb),.ser_tkmsb(ser_tkmsb),
-      .rd_dat_i(rd0_dat),.rd_read_o(rd0_read),.rd_done_o(rd0_done),.rd_error_o(rd0_error),
-      .rd_sop_i(rd0_sop),.rd_eop_i(rd0_eop),
-      .ser_rx_clk(ser_rx_clk),.ser_r(ser_r),.ser_rklsb(ser_rklsb),.ser_rkmsb(ser_rkmsb),
-      .wr_dat_o(wr0_dat),.wr_write_o(wr0_write),.wr_done_o(wr0_done),.wr_error_o(wr0_error),
-      .wr_ready_i(wr0_ready),.wr_full_i(wr0_full),
-      .tx_occupied(ser_tx_occ),.tx_full(ser_tx_full),.tx_empty(ser_tx_empty),
-      .rx_occupied(ser_rx_occ),.rx_full(ser_rx_full),.rx_empty(ser_rx_empty),
-      .serdes_link_up(serdes_link_up),.debug0(debug_serdes0), .debug1(debug_serdes1) );
-
-`ifdef EXTRAM
-   // ///////////////////////////////////////////////////////////////////////////////////
-   // External RAM Interface
-
-   localparam PAGE_SIZE = 10;  // PAGE SIZE is in bytes, 10 = 1024 bytes
-
-   wire [15:0] bus2ram, ram2bus;
-   wire [15:0] bridge_adr;
-   wire [1:0]  bridge_sel;
-   wire        bridge_stb, bridge_cyc, bridge_we, bridge_ack;
-   
-   wire [19:0] page;
-   wire [19:0] wb_ram_adr = {page[19:PAGE_SIZE],bridge_adr[PAGE_SIZE-1:0]};
-   setting_reg #(.my_addr(6)) sr_page (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-				       .in(set_data),.out(page),.changed());
-
-   wb_bridge_16_32 bridge
-     (.wb_clk(wb_clk),.wb_rst(wb_rst),
-      .A_cyc_i(s14_cyc),.A_stb_i(s14_stb),.A_we_i(s14_we),.A_sel_i(s14_sel),
-      .A_adr_i(s14_adr),.A_dat_i(s14_dat_o),.A_dat_o(s14_dat_i),.A_ack_o(s14_ack),
-      .B_cyc_o(bridge_cyc),.B_stb_o(bridge_stb),.B_we_o(bridge_we),.B_sel_o(bridge_sel),
-      .B_adr_o(bridge_adr),.B_dat_o(bus2ram),.B_dat_i(ram2bus),.B_ack_i(bridge_ack));
-
-   wb_zbt16_b wb_zbt16_b
-     (.clk(wb_clk),.rst(wb_rst),
-      .wb_adr_i(wb_ram_adr),.wb_dat_i(bus2ram),.wb_dat_o(ram2bus),.wb_sel_i(bridge_sel),
-      .wb_cyc_i(bridge_cyc),.wb_stb_i(bridge_stb),.wb_ack_o(bridge_ack),.wb_we_i(bridge_we),
-      .sram_clk(RAM_CLK),.sram_a(RAM_A),.sram_d(RAM_D[15:0]),.sram_we(RAM_WEn),
-      .sram_bw(),.sram_adv(RAM_LDn),.sram_ce(RAM_CENn),.sram_oe(RAM_OEn),
-      .sram_mode(),.sram_zz() );
-
-   assign      s14_err = 0; assign s14_rty = 0;
-   assign      RAM_CE1n = 0;
-   assign      RAM_D[17:16] = 2'bzz;
-`endif
-
-`ifdef DEBUG   
-   // /////////////////////////////////////////////////////////////////////////////////////////
-   // Debug Pins
-   
-   // FIFO Level Debugging
-   reg [31:0]  host_to_dsp_fifo,dsp_to_host_fifo,eth_mac_debug,serdes_to_dsp_fifo,dsp_to_serdes_fifo;
-   
-   always @(posedge dsp_clk)
-     serdes_to_dsp_fifo <= { {ser_rx_full,ser_rx_empty,ser_rx_occ[13:0]},
-			     {dsp_tx_full,dsp_tx_empty,dsp_tx_occ[13:0]} };
-
-   always @(posedge dsp_clk)
-     dsp_to_serdes_fifo <= { {ser_tx_full,ser_tx_empty,ser_tx_occ[13:0]},
-			     {dsp_rx_full,dsp_rx_empty,dsp_rx_occ[13:0]} };
-   
-   always @(posedge dsp_clk)
-     host_to_dsp_fifo <= { {eth_rx_full,eth_rx_empty,eth_rx_occ[13:0]},
-			   {dsp_tx_full,dsp_tx_empty,dsp_tx_occ[13:0]} };
-   
-   always @(posedge dsp_clk)
-     dsp_to_host_fifo <= { {eth_tx_full,eth_tx_empty,eth_tx_occ[13:0]},
-			   {dsp_rx_full,dsp_rx_empty,dsp_rx_occ[13:0]} };
-   
-   always @(posedge dsp_clk)
-     eth_mac_debug <= { { 6'd0, GMII_TX_EN, GMII_RX_DV, debug_mac0[7:0]},
-			{eth_rx_full2, eth_rx_empty2, eth_rx_occ2[13:0]} };
-   
-   assign      debug_clk[0] = 0;
-   assign      debug_clk[1] = dsp_clk;	
-   
-   assign     debug = host_to_dsp_fifo; // debug_mux ? host_to_dsp_fifo : dsp_to_host_fifo;
-   assign      debug_gpio_0 = eth_mac_debug;
-   assign      debug_gpio_1 = 0;
-`endif
-   
-endmodule // u2_core
-
-//   wire        debug_mux;
-//   setting_reg #(.my_addr(5)) sr_debug (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
-//					.in(set_data),.out(debug_mux),.changed());
-
-//assign     debug = debug_mux ? host_to_dsp_fifo : dsp_to_host_fifo;
-//assign     debug = debug_mux ? serdes_to_dsp_fifo : dsp_to_serdes_fifo;
-   
-//assign      debug = {{strobe_rx,/*adc_ovf_a*/ 1'b0,adc_a},
-//		{run_rx,/*adc_ovf_b*/ 1'b0,adc_b}};
-
-//assign      debug = debug_tx_dsp;
-//assign      debug = debug_serdes0;
-
-//assign      debug_gpio_0 = 0; //debug_serdes0;
-//assign      debug_gpio_1 = 0; //debug_serdes1;
-
-//   assign      debug={{3'b0, wb_clk, wb_rst, dsp_rst, por, config_success},
-//	      {8'b0},
-//      {3'b0,ram_loader_ack, ram_loader_stb, ram_loader_we,ram_loader_rst,ram_loader_done },
-//    {cpld_start,cpld_mode,cpld_done,cpld_din,cpld_clk,cpld_detached,cpld_misc,cpld_init_b} };
-
-//assign      debug = {dac_a,dac_b};
-
-/*
- assign      debug = {{ram_loader_done, takeover, 6'd0},
- {1'b0, cpld_start_int, cpld_mode_int, cpld_done_int, sd_clk, sd_csn, sd_miso, sd_mosi},
- {8'd0},
- {cpld_start, cpld_mode, cpld_done, cpld_din, cpld_misc, cpld_detached, cpld_clk, cpld_init_b}}; */
-
-/*assign      debug = host_to_dsp_fifo;
- assign      debug_gpio_0 = eth_mac_debug;
- assign      debug_gpio_1 = 0;
- */
-// Assign various commonly used debug buses.
-/*
- wire [31:0] debug_rx_1 = {uart_tx_o,GMII_TX_EN,strobe_rx,overrun,proc_int,buffer_int,timer_int,GMII_RX_DV,
- irq[7:0],
- GMII_RXD,
- GMII_TXD};
- 
- wire [31:0] debug_rx_2 = { 5'd0, s8_we, s8_stb, s8_ack, debug_rx[23:0] };
-   
-   wire [31:0] debug_time =  {uart_tx_o, 7'b0,
-			      irq[7:0],
-			      6'b0, GMII_RX_DV, GMII_TX_EN,
-			      4'b0, exp_pps_in, exp_pps_out, pps_in, pps_int};
-
-   wire [31:0] debug_irq =  {uart_tx_o, iwb_adr, iwb_ack,
-			     irq[7:0],
-			     proc_int,  7'b0 };
-
-   wire [31:0] debug_eth = 
-	       {{uart_tx_o,proc_int,underrun,buffer_int,wr2_ready,wr2_error,wr2_done,wr2_write},
-		{8'd0},
-		{8'd0},
-		{GMII_TX_EN,GMII_RX_DV,Rx_mac_empty,Rx_mac_rd,Rx_mac_err,Rx_mac_sop,Rx_mac_eop,wr2_full} };
-
-   assign      debug_serdes0 = { { rd0_dat[7:0] },
-				 { ser_tx_clk, ser_tkmsb, ser_tklsb, rd0_sop, rd0_eop, rd0_read, rd0_error, rd0_done },
-				 { ser_t[15:8] },
-				 { ser_t[7:0] } };
-
-   assign      debug_serdes1 = { {1'b0,proc_int,underrun,buffer_int,wr0_ready,wr0_error,wr0_done,wr0_write},
-				 { 1'b0, ser_rx_clk, ser_rkmsb, ser_rklsb, ser_enable, ser_prbsen, ser_loopen, ser_rx_en },
-				 { ser_r[15:8] },
-				 { ser_r[7:0] } };
-       
-   assign      debug_gpio_1 = {uart_tx_o,7'd0,
-			       3'd0,rd1_sop,rd1_eop,rd1_read,rd1_done,rd1_error,
-			       debug_txc[15:0]};
-   assign      debug_gpio_1 = debug_rx;
-   assign      debug_gpio_1 = debug_serdes1;
-   assign      debug_gpio_1 = debug_eth;
-      
-    */
-      
diff --git a/fpga/usrp2/top/u2_rev3_2rx_iad/wave.sh b/fpga/usrp2/top/u2_rev3_2rx_iad/wave.sh
deleted file mode 100755
index 626f224e5..000000000
--- a/fpga/usrp2/top/u2_rev3_2rx_iad/wave.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/sh
-
-gtkwave dsp_core_tb.vcd dsp_core_tb.sav &
diff --git a/fpga/usrp2/top/u2_rev3_iad/.gitignore b/fpga/usrp2/top/u2_rev3_iad/.gitignore
deleted file mode 100644
index e4daaf1ea..000000000
--- a/fpga/usrp2/top/u2_rev3_iad/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-/build
-/*.vcd
-/dsp_core_tb
-/*.dat
diff --git a/fpga/usrp2/top/u2_rev3_iad/Makefile b/fpga/usrp2/top/u2_rev3_iad/Makefile
deleted file mode 100644
index 15df9e43e..000000000
--- a/fpga/usrp2/top/u2_rev3_iad/Makefile
+++ /dev/null
@@ -1,253 +0,0 @@
-#
-# Copyright 2008 Ettus Research LLC
-# 
-# This file is part of GNU Radio
-# 
-# GNU Radio 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, or (at your option)
-# any later version.
-# 
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-# 
-
-##################################################
-# xtclsh Shell and tcl Script Path
-##################################################
-#XTCLSH := /opt/Xilinx/10.1/ISE/bin/lin/xtclsh
-XTCLSH := xtclsh
-ISE_HELPER := ../tcl/ise_helper.tcl
-
-##################################################
-# Project Setup
-##################################################
-BUILD_DIR := build/
-export TOP_MODULE := u2_rev3
-export PROJ_FILE := $(BUILD_DIR)$(TOP_MODULE).ise
-
-##################################################
-# Project Properties
-##################################################
-export PROJECT_PROPERTIES := \
-family Spartan3 \
-device xc3s2000 \
-package fg456 \
-speed -5 \
-top_level_module_type "HDL" \
-synthesis_tool "XST (VHDL/Verilog)" \
-simulator "ISE Simulator (VHDL/Verilog)" \
-"Preferred Language" "Verilog" \
-"Enable Message Filtering" FALSE \
-"Display Incremental Messages" FALSE 
-
-##################################################
-# Sources
-##################################################
-export SOURCE_ROOT := ../../../
-export SOURCES := \
-control_lib/CRC16_D16.v \
-control_lib/atr_controller.v \
-control_lib/bin2gray.v \
-control_lib/buffer_int.v \
-control_lib/buffer_pool.v \
-control_lib/cascadefifo2.v \
-control_lib/dcache.v \
-control_lib/decoder_3_8.v \
-control_lib/dpram32.v \
-control_lib/fifo_2clock.v \
-control_lib/fifo_2clock_casc.v \
-control_lib/gray2bin.v \
-control_lib/gray_send.v \
-control_lib/icache.v \
-control_lib/longfifo.v \
-control_lib/mux4.v \
-control_lib/mux8.v \
-control_lib/nsgpio.v \
-control_lib/ram_2port.v \
-control_lib/ram_harv_cache.v \
-control_lib/ram_loader.v \
-control_lib/setting_reg.v \
-control_lib/settings_bus.v \
-control_lib/shortfifo.v \
-control_lib/medfifo.v \
-control_lib/srl.v \
-control_lib/system_control.v \
-control_lib/wb_1master.v \
-control_lib/wb_readback_mux.v \
-control_lib/simple_uart.v \
-control_lib/simple_uart_tx.v \
-control_lib/simple_uart_rx.v \
-control_lib/oneshot_2clk.v \
-control_lib/sd_spi.v \
-control_lib/sd_spi_wb.v \
-control_lib/wb_bridge_16_32.v \
-coregen/fifo_xlnx_2Kx36_2clk.v \
-coregen/fifo_xlnx_2Kx36_2clk.xco \
-coregen/fifo_xlnx_512x36_2clk.v \
-coregen/fifo_xlnx_512x36_2clk.xco \
-eth/mac_rxfifo_int.v \
-eth/mac_txfifo_int.v \
-eth/rtl/verilog/Clk_ctrl.v \
-eth/rtl/verilog/MAC_rx.v \
-eth/rtl/verilog/MAC_rx/Broadcast_filter.v \
-eth/rtl/verilog/MAC_rx/CRC_chk.v \
-eth/rtl/verilog/MAC_rx/MAC_rx_FF.v \
-eth/rtl/verilog/MAC_rx/MAC_rx_add_chk.v \
-eth/rtl/verilog/MAC_rx/MAC_rx_ctrl.v \
-eth/rtl/verilog/MAC_top.v \
-eth/rtl/verilog/MAC_tx.v \
-eth/rtl/verilog/MAC_tx/CRC_gen.v \
-eth/rtl/verilog/MAC_tx/MAC_tx_FF.v \
-eth/rtl/verilog/MAC_tx/MAC_tx_addr_add.v \
-eth/rtl/verilog/MAC_tx/MAC_tx_ctrl.v \
-eth/rtl/verilog/MAC_tx/Random_gen.v \
-eth/rtl/verilog/Phy_int.v \
-eth/rtl/verilog/RMON.v \
-eth/rtl/verilog/RMON/RMON_addr_gen.v \
-eth/rtl/verilog/RMON/RMON_ctrl.v \
-eth/rtl/verilog/Reg_int.v \
-eth/rtl/verilog/eth_miim.v \
-eth/rtl/verilog/flow_ctrl_rx.v \
-eth/rtl/verilog/flow_ctrl_tx.v \
-eth/rtl/verilog/miim/eth_clockgen.v \
-eth/rtl/verilog/miim/eth_outputcontrol.v \
-eth/rtl/verilog/miim/eth_shiftreg.v \
-opencores/8b10b/decode_8b10b.v \
-opencores/8b10b/encode_8b10b.v \
-opencores/aemb/rtl/verilog/aeMB_bpcu.v \
-opencores/aemb/rtl/verilog/aeMB_core_BE.v \
-opencores/aemb/rtl/verilog/aeMB_ctrl.v \
-opencores/aemb/rtl/verilog/aeMB_edk32.v \
-opencores/aemb/rtl/verilog/aeMB_ibuf.v \
-opencores/aemb/rtl/verilog/aeMB_regf.v \
-opencores/aemb/rtl/verilog/aeMB_xecu.v \
-opencores/i2c/rtl/verilog/i2c_master_bit_ctrl.v \
-opencores/i2c/rtl/verilog/i2c_master_byte_ctrl.v \
-opencores/i2c/rtl/verilog/i2c_master_defines.v \
-opencores/i2c/rtl/verilog/i2c_master_top.v \
-opencores/i2c/rtl/verilog/timescale.v \
-opencores/simple_pic/rtl/simple_pic.v \
-opencores/spi/rtl/verilog/spi_clgen.v \
-opencores/spi/rtl/verilog/spi_defines.v \
-opencores/spi/rtl/verilog/spi_shift.v \
-opencores/spi/rtl/verilog/spi_top.v \
-opencores/spi/rtl/verilog/timescale.v \
-sdr_lib/acc.v \
-sdr_lib/add2.v \
-sdr_lib/add2_and_round.v \
-sdr_lib/add2_and_round_reg.v \
-sdr_lib/add2_reg.v \
-sdr_lib/cic_dec_shifter.v \
-sdr_lib/cic_decim.v \
-sdr_lib/cic_int_shifter.v \
-sdr_lib/cic_interp.v \
-sdr_lib/cic_strober.v \
-sdr_lib/clip.v \
-sdr_lib/clip_reg.v \
-sdr_lib/cordic.v \
-sdr_lib/cordic_z24.v \
-sdr_lib/cordic_stage.v \
-sdr_lib/dsp_core_tx.v \
-sdr_lib/hb_dec.v \
-sdr_lib/hb_interp.v \
-sdr_lib/integrate.v \
-sdr_lib/round.v \
-sdr_lib/round_reg.v \
-sdr_lib/rx_control.v \
-sdr_lib/rx_dcoffset.v \
-sdr_lib/sign_extend.v \
-sdr_lib/small_hb_dec.v \
-sdr_lib/small_hb_int.v \
-sdr_lib/tx_control.v \
-serdes/serdes.v \
-serdes/serdes_fc_rx.v \
-serdes/serdes_fc_tx.v \
-serdes/serdes_rx.v \
-serdes/serdes_tx.v \
-timing/time_receiver.v \
-timing/time_sender.v \
-timing/time_sync.v \
-timing/timer.v \
-top/u2_core/u2_core.v \
-top/u2_rev3/u2_rev3.ucf \
-top/u2_rev3/u2_rev3.v \
-top/u2_rev3_iad/dsp_core_rx.v
-
-##################################################
-# Process Properties
-##################################################
-export SYNTHESIZE_PROPERTIES := \
-"Number of Clock Buffers" 6 \
-"Pack I/O Registers into IOBs" Yes \
-"Optimization Effort" High \
-"Optimize Instantiated Primitives" TRUE \
-"Register Balancing" Yes \
-"Use Clock Enable" Auto \
-"Use Synchronous Reset" Auto \
-"Use Synchronous Set" Auto
-
-export TRANSLATE_PROPERTIES := \
-"Macro Search Path" "$(shell pwd)/../../coregen/"
-
-export MAP_PROPERTIES := \
-"Allow Logic Optimization Across Hierarchy" TRUE \
-"Map to Input Functions" 4 \
-"Optimization Strategy (Cover Mode)" Speed \
-"Pack I/O Registers/Latches into IOBs" "For Inputs and Outputs" \
-"Perform Timing-Driven Packing and Placement" TRUE \
-"Map Effort Level" High \
-"Extra Effort" Normal \
-"Combinatorial Logic Optimization" TRUE \
-"Register Duplication" TRUE
-
-export PLACE_ROUTE_PROPERTIES := \
-"Place & Route Effort Level (Overall)" High 
-
-export STATIC_TIMING_PROPERTIES := \
-"Number of Paths in Error/Verbose Report" 10 \
-"Report Type" "Error Report"
-
-export GEN_PROG_FILE_PROPERTIES := \
-"Configuration Rate" 6 \
-"Create Binary Configuration File" TRUE \
-"Done (Output Events)" 5 \
-"Enable Bitstream Compression" TRUE \
-"Enable Outputs (Output Events)" 6 
-
-export SIM_MODEL_PROPERTIES := ""
-
-##################################################
-# Make Options
-##################################################
-all:
-	@echo make proj, check, synth, bin, testbench, or clean
-
-proj:
-	PROCESS_RUN="" $(XTCLSH) $(ISE_HELPER)	
-
-check:
-	PROCESS_RUN="Check Syntax" $(XTCLSH) $(ISE_HELPER)	
-
-synth:
-	PROCESS_RUN="Synthesize - XST" $(XTCLSH) $(ISE_HELPER)	
-
-bin:
-	PROCESS_RUN="Generate Programming File" $(XTCLSH) $(ISE_HELPER)		
-
-testbench:
-	iverilog -c cmdfile -o dsp_core_tb dsp_core_tb.v
-
-clean:
-	rm -rf $(BUILD_DIR)
-	rm -f dsp_core_tb
-	rm -f *.lx2
-	rm -f *.dat
-	rm -f *.vcd
diff --git a/fpga/usrp2/top/u2_rev3_iad/cmdfile b/fpga/usrp2/top/u2_rev3_iad/cmdfile
deleted file mode 100644
index 34373a676..000000000
--- a/fpga/usrp2/top/u2_rev3_iad/cmdfile
+++ /dev/null
@@ -1,4 +0,0 @@
--y .
--y ../../sdr_lib
--y ../../control_lib
--y ../../models
diff --git a/fpga/usrp2/top/u2_rev3_iad/dsp_core_rx.v b/fpga/usrp2/top/u2_rev3_iad/dsp_core_rx.v
deleted file mode 100644
index 2882464ba..000000000
--- a/fpga/usrp2/top/u2_rev3_iad/dsp_core_rx.v
+++ /dev/null
@@ -1,158 +0,0 @@
-`define DSP_CORE_RX_BASE 160
-module dsp_core_rx
-  (input clk, input rst,
-   input set_stb, input [7:0] set_addr, input [31:0] set_data,
-
-   input [13:0] adc_a, input adc_ovf_a,
-   input [13:0] adc_b, input adc_ovf_b,
-   
-   input [15:0] io_rx,
-
-   output [31:0] sample,
-   input run,
-   output strobe,
-   output [31:0] debug
-   );
-
-   wire [15:0] scale_i, scale_q;
-   wire [13:0] adc_a_ofs, adc_b_ofs;
-   reg [13:0] adc_i, adc_q;
-   wire [31:0] phase_inc;
-   reg [31:0]  phase;
-
-   wire [35:0] prod_i, prod_q;
-   wire [23:0] i_cordic, q_cordic;
-   wire [31:0] i_iad, q_iad;
-   wire [15:0] i_out, q_out;
-   
-   wire        enable_hb1, enable_hb2; // Correspond to std firmware settings
-   wire [7:0]  cic_decim;              // for combined CIC/HB decimator
-   wire [9:0]  decim_rate;             // Reconstructed original decimation setting
-   
-   setting_reg #(.my_addr(`DSP_CORE_RX_BASE+0)) sr_0
-     (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out(phase_inc),.changed());
-   
-   setting_reg #(.my_addr(`DSP_CORE_RX_BASE+1)) sr_1
-     (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out({scale_i,scale_q}),.changed());
-   
-   setting_reg #(.my_addr(`DSP_CORE_RX_BASE+2)) sr_2
-     (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out({enable_hb1,enable_hb2,cic_decim}),.changed());
-
-   rx_dcoffset #(.WIDTH(14),.ADDR(`DSP_CORE_RX_BASE+6)) rx_dcoffset_a
-     (.clk(clk),.rst(rst),.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .adc_in(adc_a),.adc_out(adc_a_ofs));
-   
-   rx_dcoffset #(.WIDTH(14),.ADDR(`DSP_CORE_RX_BASE+7)) rx_dcoffset_b
-     (.clk(clk),.rst(rst),.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .adc_in(adc_b),.adc_out(adc_b_ofs));
-
-   wire [3:0]  muxctrl;
-   setting_reg #(.my_addr(`DSP_CORE_RX_BASE+8)) sr_8
-     (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out(muxctrl),.changed());
-
-   wire [1:0] gpio_ena;
-   setting_reg #(.my_addr(`DSP_CORE_RX_BASE+9)) sr_9
-     (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out(gpio_ena),.changed());
-
-   // The TVRX connects to what is called adc_b, thus A and B are
-   // swapped throughout the design.
-   //
-   // In the interest of expediency and keeping the s/w sane, we just remap them here.
-   // The I & Q fields are mapped the same:
-   // 0 -> "the real A" (as determined by the TVRX)
-   // 1 -> "the real B"
-   // 2 -> const zero
-   
-   always @(posedge clk)
-     case(muxctrl[1:0])		// The I mapping
-       0: adc_i <= adc_b_ofs;	// "the real A"
-       1: adc_i <= adc_a_ofs;
-       2: adc_i <= 0;
-       default: adc_i <= 0;
-     endcase // case(muxctrl[1:0])
-          
-   always @(posedge clk)
-     case(muxctrl[3:2])		// The Q mapping
-       0: adc_q <= adc_b_ofs;	// "the real A"
-       1: adc_q <= adc_a_ofs;
-       2: adc_q <= 0;
-       default: adc_q <= 0;
-     endcase // case(muxctrl[3:2])
-       
-   always @(posedge clk)
-     if(rst)
-       phase <= 0;
-     else if(~run)
-       phase <= 0;
-     else
-       phase <= phase + phase_inc;
-
-   MULT18X18S mult_i
-     (.P(prod_i),    // 36-bit multiplier output
-      .A({{4{adc_i[13]}},adc_i} ),    // 18-bit multiplier input
-      .B({{2{scale_i[15]}},scale_i}),    // 18-bit multiplier input
-      .C(clk),    // Clock input
-      .CE(1),  // Clock enable input
-      .R(rst)     // Synchronous reset input
-      );
-
-   MULT18X18S mult_q
-     (.P(prod_q),    // 36-bit multiplier output
-      .A({{4{adc_q[13]}},adc_q} ),    // 18-bit multiplier input
-      .B({{2{scale_q[15]}},scale_q}),    // 18-bit multiplier input
-      .C(clk),    // Clock input
-      .CE(1),  // Clock enable input
-      .R(rst)     // Synchronous reset input
-      ); 
-
-   
-   cordic_z24 #(.bitwidth(24))
-     cordic(.clock(clk), .reset(rst), .enable(run),
-	    .xi(prod_i[24:1]),. yi(prod_q[24:1]), .zi(phase[31:8]),
-	    .xo(i_cordic),.yo(q_cordic),.zo() );
-
-   // Reconstruct original decimation rate from standard firmware settings
-   assign decim_rate = enable_hb2 ? (enable_hb1 ? {cic_decim,2'b0} : 
-                                                  {1'b0,cic_decim,1'b0 }) :
-				    cic_decim;
-
-   cic_strober #(.WIDTH(10)) // Convenient reuse of strobe generator
-   cic_strober(.clock(clk),.reset(rst),.enable(run),.rate(decim_rate),
-	       .strobe_fast(1),.strobe_slow(strobe_iad) );
-
-   integrate #(.INPUTW(24),.ACCUMW(32),.OUTPUTW(32)) integrator_i
-     (.clk_i(clk),.rst_i(rst),.ena_i(run),
-      .dump_i(strobe_iad),.data_i(i_cordic),
-      .stb_o(strobe),.integ_o(i_iad) );
-
-   integrate #(.INPUTW(24),.ACCUMW(32),.OUTPUTW(32)) integrator_q
-     (.clk_i(clk),.rst_i(rst),.ena_i(run),
-      .dump_i(strobe_iad),.data_i(q_cordic),
-      .stb_o(),.integ_o(q_iad) );
-   
-   round #(.bits_in(32),.bits_out(16)) round_iout (.in(i_iad),.out(i_out));
-   round #(.bits_in(32),.bits_out(16)) round_qout (.in(q_iad),.out(q_out));
-  
-   // Streaming GPIO
-   //
-   // io_rx[15] => I channel LSB if gpio_ena[0] high
-   // io_rx[14] => Q channel LSB if gpio_ena[1] high
-
-   reg [31:0] sample_reg;
-   always @(posedge clk)
-     begin
-	sample_reg[31:17] <= i_out[15:1];
-	sample_reg[15:1]  <= q_out[15:1];
-	sample_reg[16]    <= gpio_ena[0] ? io_rx[15] : i_out[0]; 
-	sample_reg[0]     <= gpio_ena[1] ? io_rx[14] : q_out[0];
-     end
-   
-   assign      sample = sample_reg;
-   assign      debug = {clk, rst, run, strobe};
-   
-endmodule // dsp_core_rx
diff --git a/fpga/usrp2/top/u2_rev3_iad/dsp_core_tb.sav b/fpga/usrp2/top/u2_rev3_iad/dsp_core_tb.sav
deleted file mode 100644
index 17c90cdd7..000000000
--- a/fpga/usrp2/top/u2_rev3_iad/dsp_core_tb.sav
+++ /dev/null
@@ -1,61 +0,0 @@
-[size] 1680 975
-[pos] -1 -1
-*-24.007835 13660000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
-[treeopen] dsp_core_tb.
-@200
--SYSCON
-@28
-dsp_core_tb.clk
-dsp_core_tb.rst
-dsp_core_tb.run
-@200
--
--Settings Bus
-@22
-dsp_core_tb.set_addr[7:0]
-@24
-dsp_core_tb.set_data[31:0]
-@28
-dsp_core_tb.set_stb
-@200
--
--RX DSP CORE
--
-@24
-dsp_core_tb.rx_path.decim_rate[9:0]
-@200
--
-@8420
-dsp_core_tb.adc_a[13:0]
-@20000
--
-@200
--
-@8420
-dsp_core_tb.rx_path.adc_a_ofs[13:0]
-@20000
--
-@200
--
-@8022
-dsp_core_tb.rx_path.i_cordic[23:0]
-@20000
--
-@200
--
-@8022
-dsp_core_tb.rx_path.i_iad[31:0]
-@20000
--
-@200
--
-@8420
-dsp_core_tb.rx_path.i_out[15:0]
-@20000
--
-@200
--
-@28
-dsp_core_tb.stb
-@200
--
diff --git a/fpga/usrp2/top/u2_rev3_iad/dsp_core_tb.v b/fpga/usrp2/top/u2_rev3_iad/dsp_core_tb.v
deleted file mode 100644
index 4d5a5b537..000000000
--- a/fpga/usrp2/top/u2_rev3_iad/dsp_core_tb.v
+++ /dev/null
@@ -1,196 +0,0 @@
-`timescale 1ns / 100ps
-
-module dsp_core_tb;
-
-///////////////////////////////////////////////////////////////////////////////////
-// Sim-wide wires/busses                                                         //
-///////////////////////////////////////////////////////////////////////////////////
-   
-   // System control bus
-   reg                clk = 0;
-   reg                rst = 1;
-   
-   // Configuration bus
-   reg                set_stb = 0;  
-   reg          [7:0] set_addr = 0; 
-   reg         [31:0] set_data = 0; 
-
-   // ADC input bus
-   wire signed [13:0] adc_a;
-   wire signed [13:0] adc_b;
-   wire               adc_ovf_a;
-   wire               adc_ovf_b;
-   
-   // RX sample bus
-   reg                run = 1;
-   wire        [31:0] sample;
-   wire               stb;
-   
-///////////////////////////////////////////////////////////////////////////////////
-// Simulation control                                                            //
-///////////////////////////////////////////////////////////////////////////////////
-   
-   // Set up output files
-   initial begin
-      $dumpfile("dsp_core_tb.vcd");
-      $dumpvars(0,dsp_core_tb);
-   end
-
-   // Update display every 10 us
-   always #1000 $monitor("Time in us ",$time/1000);
-
-   // Generate master clock 50% @ 100 MHz
-   always
-     #5 clk = ~clk;
-
-///////////////////////////////////////////////////////////////////////////////////
-// Unit(s) under test                                                            //
-///////////////////////////////////////////////////////////////////////////////////
-   
-   reg [13:0] amplitude = 13'h1fff;
-   reg [15:0] impulse_len = 0;
-   reg [15:0] zero_len = 0;
-   reg 	      adc_ena = 0;
-
-   initial #500 @(posedge clk) adc_ena = 1;
-
-   impulse adc
-     (.clk(clk),.rst(rst),.ena(adc_ena),
-      .dc_offset_a(0),.dc_offset_b(0),
-      .amplitude(amplitude),
-      .impulse_len(impulse_len),.zero_len(zero_len),
-      .adc_a(adc_a),.adc_b(adc_b),
-      .adc_ovf_a(adc_ovf_a),.adc_ovf_b(adc_ovf_b) );
-
-   initial rx_path.rx_dcoffset_a.integrator = 0; // so sim doesn't propagate X's
-   initial rx_path.rx_dcoffset_b.integrator = 0; // generated before reset
-   dsp_core_rx rx_path
-     (.clk(clk),.rst(rst),
-      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-      .adc_a(adc_a),.adc_ovf_a(adc_ovf_a),
-      .adc_b(adc_b),.adc_ovf_b(adc_ovf_b),
-      .io_rx(16'b0),
-      .run(adc_ena),.sample(sample),.strobe(stb),
-      .debug() );
-   
-///////////////////////////////////////////////////////////////////////////////////
-// Simulation output/checking                                                    //
-///////////////////////////////////////////////////////////////////////////////////
-
-   integer rx_file;
-   
-   initial
-     rx_file = $fopen("rx.dat", "wb");
-   
-   always @(posedge clk)
-     begin
-	// Write RX sample I&Q in format Octave can load
-	if (stb)
-	  begin
-	     $fwrite(rx_file, sample[31:16]);
-	     $fputc(32, rx_file);
-	     $fwrite(rx_file, sample[15:0]);
-	     $fputc(13, rx_file);
-	  end
-     end
-   
-///////////////////////////////////////////////////////////////////////////////////
-// Tasks                                                                         //
-///////////////////////////////////////////////////////////////////////////////////
-
-   task power_on;
-     begin
-	@(posedge clk)
-	  rst = #1 1'b1;
-	@(posedge clk)
-	  rst = #1 1'b0;
-     end
-   endtask // power_on
-   
-   task set_impulse_len;
-      input [15:0] len;
-      @(posedge clk) impulse_len = len-1;
-   endtask
- 
-   task set_zero_len;
-      input [15:0] len;
-      @(posedge clk) zero_len = len-1;
-   endtask
-
-   // Strobe configuration bus with addr, data
-   task write_cfg_register;
-      input [7:0]  regno;
-      input [31:0] value;
-      
-      begin
-	 @(posedge clk);
-	 set_addr <= regno;
-	 set_data <= value;
-	 set_stb  <= 1'b1;
-	 @(posedge clk);
-	 set_stb  <= 1'b0;
-      end
-   endtask // write_cfg_register
-
-   // Set RX DDC frequency
-   task set_ddc_freq;
-      input [31:0] freq;
-
-      write_cfg_register(160, freq);
-   endtask // set_ddc_freq
-
-   // Set RX IQ scaling registers
-   task set_rx_scale_iq;
-      input [15:0] scale_i;
-      input [15:0] scale_q;
-
-      write_cfg_register(161, {scale_i,scale_q});
-   endtask // set_rx_scale_iq
-   
-   // Set RX MUX control
-   task set_rx_muxctrl;
-      input [3:0] muxctrl;
-
-      write_cfg_register(168, muxctrl);
-   endtask // set_rx_muxctrl
-   
-   // Set RX CIC decim and halfband enables
-   task set_decim;
-      input hb1_ena;
-      input hb2_ena;
-      input [7:0] decim;
-
-      write_cfg_register(162, {hb1_ena,hb2_ena,decim});
-   endtask // set_decim
-      
-   
-///////////////////////////////////////////////////////////////////////////////////
-// Individual tests                                                              //
-///////////////////////////////////////////////////////////////////////////////////
-
-   task test_rx;
-      begin
-	 set_impulse_len(1);
-	 set_zero_len(999);
-	 set_rx_muxctrl(1);
-	 set_ddc_freq(0);
-	 set_rx_scale_iq(1243, 1243);
-	 set_decim(0, 1, 3);
-
-	 #100000 $finish;
-      end
-   endtask // test_rx
-   
-      
-///////////////////////////////////////////////////////////////////////////////////
-// Top-level test                                                                //
-///////////////////////////////////////////////////////////////////////////////////
-
-   // Execute tests
-   initial
-     begin
-	power_on();
-	test_rx();
-     end
-
-endmodule // dsp_core_tb
diff --git a/fpga/usrp2/top/u2_rev3_iad/impulse.v b/fpga/usrp2/top/u2_rev3_iad/impulse.v
deleted file mode 100644
index 7f0cdc9be..000000000
--- a/fpga/usrp2/top/u2_rev3_iad/impulse.v
+++ /dev/null
@@ -1,63 +0,0 @@
-module impulse
-  (input clk,
-   input rst,
-   input ena,
-   
-   input [13:0] dc_offset_a,
-   input [13:0] dc_offset_b,
-   input [13:0] amplitude,
-   input [15:0] impulse_len,
-   input [15:0] zero_len,
-
-   output [13:0] adc_a,
-   output [13:0] adc_b,
-   output        adc_ovf_a,
-   output        adc_ovf_b
-   );
-
-   reg [13:0] adc_a_int = 0;
-   reg [15:0] count;
-
-   localparam ST_ZERO = 0;
-   localparam ST_HIGH = 1;
-   reg 	      state;
-   
-   always @(posedge clk)
-     if (rst | ~ena)
-       begin
-	  adc_a_int <= 0;
-	  count <= 0;
-	  state <= ST_ZERO;
-       end
-     else
-       case(state)
-	 ST_ZERO:
-	   if (count == zero_len)
-	     begin
-		adc_a_int <= amplitude;
-		state <= ST_HIGH;
-		count <= 0;
-	     end
-	   else
-	     count <= count + 1;
-
-	 ST_HIGH:
-	   if (count == impulse_len)
-	     begin
-		adc_a_int <= 0;
-		state <= ST_ZERO;
-		count <= 0;
-	     end
-	   else
-	     count <= count + 1;
-
-       endcase // case (state)
-
-   assign adc_a = adc_a_int + dc_offset_a;
-
-   // Ignore for now
-   assign adc_b = dc_offset_b;
-   assign adc_ovf_a = 0;
-   assign adc_ovf_b = 0;
-
-endmodule // impulse
diff --git a/fpga/usrp2/top/u2_rev3_iad/wave.sh b/fpga/usrp2/top/u2_rev3_iad/wave.sh
deleted file mode 100755
index 626f224e5..000000000
--- a/fpga/usrp2/top/u2_rev3_iad/wave.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/sh
-
-gtkwave dsp_core_tb.vcd dsp_core_tb.sav &
diff --git a/fpga/usrp2/top/u2plus/capture_ddrlvds.v b/fpga/usrp2/top/u2plus/capture_ddrlvds.v
deleted file mode 100644
index b9f53ff8c..000000000
--- a/fpga/usrp2/top/u2plus/capture_ddrlvds.v
+++ /dev/null
@@ -1,39 +0,0 @@
-
-
-module capture_ddrlvds
-  #(parameter WIDTH=7)
-   (input clk,
-    input ssclk_p,
-    input ssclk_n,
-    input [WIDTH-1:0] in_p,
-    input [WIDTH-1:0] in_n,
-    output reg [(2*WIDTH)-1:0] out);
-
-   wire [WIDTH-1:0] 	   ddr_dat;
-   wire 		   ssclk_regional;
-   wire 		   ssclk_io;
-   wire 		   ssclk;
-   wire [(2*WIDTH)-1:0]    out_pre1;
-   reg [(2*WIDTH)-1:0] 	   out_pre2;
-   
-   IBUFGDS #(.IOSTANDARD("LVDS_25"),.DIFF_TERM("TRUE")) clkbuf (.O(ssclk), .I(ssclk_p), .IB(ssclk_n));
-   
-   genvar 	       i;
-   generate
-      for(i = 0; i < WIDTH; i = i + 1)
-	begin : gen_lvds_pins
-	   IBUFDS #(.IOSTANDARD("LVDS_25"),.DIFF_TERM("TRUE")) ibufds 
-	      (.O(ddr_dat[i]), .I(in_p[i]), .IB(in_n[i]) );
-	   IDDR2 #(.DDR_ALIGNMENT("C1")) iddr2
-	     (.Q0(out_pre1[2*i]), .Q1(out_pre1[(2*i)+1]), .C0(ssclk), .C1(~ssclk),
-	      .CE(1'b1), .D(ddr_dat[i]), .R(1'b0), .S(1'b0));
-	end
-   endgenerate
-
-   always @(negedge clk)
-     out_pre2 <= out_pre1;
-
-   always @(posedge clk)
-     out      <= out_pre2;
-   
-endmodule // capture_ddrlvds