Merge branch 'ue1_rev2' into usrp_e_next

19 files changed, 1381 insertions, 0 deletions

diff --git a/fpga/usrp2/top/.gitignore b/fpga/usrp2/top/.gitignore
index bf1b77066..0d90f1698 100644
--- a/fpga/usrp2/top/.gitignore
+++ b/fpga/usrp2/top/.gitignore
@@ -1 +1,2 @@
 /*.sav
+build*
diff --git a/fpga/usrp2/top/u1e/.gitignore b/fpga/usrp2/top/u1e/.gitignore
new file mode 100644
index 000000000..8d872713e
--- /dev/null
+++ b/fpga/usrp2/top/u1e/.gitignore
@@ -0,0 +1,6 @@
+*~
+build
+*.log
+*.cmd
+tb_u1e
+*.lxt
diff --git a/fpga/usrp2/top/u1e/Makefile b/fpga/usrp2/top/u1e/Makefile
new file mode 100644
index 000000000..3cb9fd8f3
--- /dev/null
+++ b/fpga/usrp2/top/u1e/Makefile
@@ -0,0 +1,101 @@
+#
+# Copyright 2008 Ettus Research LLC
+#
+
+##################################################
+# Project Setup
+##################################################
+TOP_MODULE = u1e
+BUILD_DIR = $(abspath build$(ISE))
+
+##################################################
+# 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 ../../extram/Makefile.srcs
+include ../../gpmc/Makefile.srcs
+
+##################################################
+# Project Properties
+##################################################
+export PROJECT_PROPERTIES := \
+family "Spartan-3A DSP" \
+device xc3sd1800a \
+package cs484 \
+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 = \
+u1e_core.v \
+u1e.v \
+u1e.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) $(EXTRAM_SRCS) \
+$(GPMC_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/u1e/README b/fpga/usrp2/top/u1e/README
new file mode 100644
index 000000000..14c7a4955
--- /dev/null
+++ b/fpga/usrp2/top/u1e/README
@@ -0,0 +1,4 @@
+
+make clean
+make sim
+./tb_u1e -lxt2
diff --git a/fpga/usrp2/top/u1e/cmdfile b/fpga/usrp2/top/u1e/cmdfile
new file mode 100644
index 000000000..291c723b8
--- /dev/null
+++ b/fpga/usrp2/top/u1e/cmdfile
@@ -0,0 +1,20 @@
+
+# My stuff
+-y .
+-y ../../control_lib
+-y ../../control_lib/newfifo
+-y ../../sdr_lib
+-y ../../timing
+-y ../../coregen
+-y ../../gpmc
+
+# Models
+-y ../../models
+-y /opt/Xilinx/10.1/ISE/verilog/src/unisims
+
+# Open Cores
+-y ../../opencores/spi/rtl/verilog
++incdir+../../opencores/spi/rtl/verilog
+-y ../../opencores/i2c/rtl/verilog
++incdir+../../opencores/i2c/rtl/verilog
+
diff --git a/fpga/usrp2/top/u1e/make.sim b/fpga/usrp2/top/u1e/make.sim
new file mode 100644
index 000000000..1c163884c
--- /dev/null
+++ b/fpga/usrp2/top/u1e/make.sim
@@ -0,0 +1,7 @@
+all: sim
+
+sim:	
+	iverilog -Wimplicit -Wportbind -c cmdfile tb_u1e.v -o tb_u1e
+
+clean:
+	rm -f tb_u1e *.vcd *.lxt a.out
diff --git a/fpga/usrp2/top/u1e/tb_u1e.v b/fpga/usrp2/top/u1e/tb_u1e.v
new file mode 100644
index 000000000..5fc8134fb
--- /dev/null
+++ b/fpga/usrp2/top/u1e/tb_u1e.v
@@ -0,0 +1,41 @@
+`timescale 1ps / 1ps
+//////////////////////////////////////////////////////////////////////////////////
+
+module tb_u1e();
+   
+   wire [2:0] debug_led;
+   wire [31:0] debug;
+   wire [1:0] debug_clk;
+
+   xlnx_glbl glbl (.GSR(),.GTS());
+
+   initial begin
+      $dumpfile("tb_u1e.lxt");
+      $dumpvars(0,tb_u1e);
+   end
+    
+   // GPMC
+   wire       EM_CLK, EM_WAIT0, EM_NCS4, EM_NCS6, EM_NWE, EM_NOE;
+   wire [15:0] EM_D;
+   wire [10:1] EM_A;
+   wire [1:0]  EM_NBE;
+   
+   reg  clk_fpga = 0, rst_fpga = 1;
+   always #15625 clk_fpga = ~clk_fpga;
+
+   initial #200000
+     @(posedge clk_fpga)
+       rst_fpga <= 0;
+   
+   u1e_core u1e_core(.clk_fpga(clk_fpga), .rst_fpga(rst_fpga), 
+		     .debug_led(debug_led), .debug(debug), .debug_clk(debug_clk),
+		     .EM_CLK(EM_CLK), .EM_D(EM_D), .EM_A(EM_A), .EM_NBE(EM_NBE),
+		     .EM_WAIT0(EM_WAIT0), .EM_NCS4(EM_NCS4), .EM_NCS6(EM_NCS6), 
+		     .EM_NWE(EM_NWE), .EM_NOE(EM_NOE) );
+
+   gpmc_model_async gpmc_model_async
+     (.EM_CLK(EM_CLK), .EM_D(EM_D), .EM_A(EM_A), .EM_NBE(EM_NBE),
+      .EM_WAIT0(EM_WAIT0), .EM_NCS4(EM_NCS4), .EM_NCS6(EM_NCS6), 
+      .EM_NWE(EM_NWE), .EM_NOE(EM_NOE) );
+   
+endmodule // tb_u1e
diff --git a/fpga/usrp2/top/u1e/timing.ucf b/fpga/usrp2/top/u1e/timing.ucf
new file mode 100644
index 000000000..8df28c9d3
--- /dev/null
+++ b/fpga/usrp2/top/u1e/timing.ucf
@@ -0,0 +1,13 @@
+
+NET "CLK_FPGA_P" TNM_NET = "CLK_FPGA_P";
+TIMESPEC "TS_clk_fpga_p" = PERIOD "CLK_FPGA_P" 15625 ps HIGH 50 %;
+
+
+
+
+#NET "adc_a<*>" TNM_NET = ADC_DATA_GRP;
+#NET "adc_b<*>" TNM_NET = ADC_DATA_GRP;
+#TIMEGRP "ADC_DATA_GRP" OFFSET = IN 1 ns VALID 5 ns BEFORE "clk_fpga_p" RISING;
+
+#NET "adc_a<*>" OFFSET = IN 1 ns VALID 5 ns BEFORE "clk_fpga_p" RISING;
+#NET "adc_b<*>" OFFSET = IN 1 ns VALID 5 ns BEFORE "clk_fpga_p" RISING;
diff --git a/fpga/usrp2/top/u1e/u1e.ucf b/fpga/usrp2/top/u1e/u1e.ucf
new file mode 100644
index 000000000..0c487a601
--- /dev/null
+++ b/fpga/usrp2/top/u1e/u1e.ucf
@@ -0,0 +1,259 @@
+
+NET "CLK_FPGA_P"  LOC = "Y11"  ;
+NET "CLK_FPGA_N"  LOC = "Y10"  ;
+
+## 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"  ;
+
+## Overo GPIO
+NET "overo_gpio0"  LOC = "F9"  ;  # MISC GPIO for debug
+NET "overo_gpio14"  LOC = "C4"  ;  # MISC GPIO for debug
+NET "overo_gpio21"  LOC = "D5"  ;  # MISC GPIO for debug
+NET "overo_gpio22"  LOC = "A3"  ;  # MISC GPIO for debug
+NET "overo_gpio23"  LOC = "B3"  ;  # MISC GPIO for debug
+NET "overo_gpio64"  LOC = "A4"  ;  # MISC GPIO for debug
+NET "overo_gpio65"  LOC = "F8"  ;  # MISC GPIO for debug
+
+NET "overo_gpio127"  LOC = "C8"  ;  # Changed name to gpio10
+NET "overo_gpio128"  LOC = "G8"  ;  # Changed name to gpio186
+
+NET "overo_gpio144"  LOC = "A5"  ;  # tx_have_space
+NET "overo_gpio145"  LOC = "C7"  ;  # tx_underrun
+NET "overo_gpio146"  LOC = "A6"  ;  # rx_have_data
+NET "overo_gpio147"  LOC = "B6"  ;  # rx_overrun
+NET "overo_gpio163"  LOC = "D7"  ;  # MISC GPIO for debug
+NET "overo_gpio170"  LOC = "E8"  ;  # MISC GPIO for debug
+NET "overo_gpio176"  LOC = "B4"  ;  # MISC GPIO for debug
+
+## Overo UART
+#NET "overo_txd1"  LOC = "C6"  ;
+#NET "overo_rxd1"  LOC = "D6"  ;
+
+## FTDI UART to USB converter
+NET "FPGA_TXD"  LOC = "G19"  ;
+NET "FPGA_RXD"  LOC = "F20"  ;
+
+#NET "SYSEN"  LOC = "C11"  ;
+
+## I2C
+NET "db_scl"  LOC = "F19"  ;
+NET "db_sda"  LOC = "F18"  ;
+
+## SPI
+### DBoard SPI
+NET "db_sclk_rx"  LOC = "D21"  ;
+NET "db_miso_rx"  LOC = "D22"  ;
+NET "db_mosi_rx"  LOC = "D20"  ;
+NET "db_sen_rx"  LOC = "E19"  ;
+NET "db_sclk_tx"  LOC = "F21"  ;
+NET "db_miso_tx"  LOC = "E20"  ;
+NET "db_mosi_tx"  LOC = "G17"  ;
+NET "db_sen_tx"  LOC = "G18"  ;
+
+### AD9862 SPI and aux SPI Interfaces
+#NET "aux_sdi_codec"  LOC = "G3"  ;
+#NET "aux_sdo_codec"  LOC = "F3"  ;
+#NET "aux_sclk_codec"  LOC = "C1"  ;
+NET "sen_codec"  LOC = "F5"  |IOSTANDARD = LVCMOS33;
+NET "mosi_codec"  LOC = "F4"  |IOSTANDARD = LVCMOS33;
+NET "miso_codec"  LOC = "H4"  ;
+NET "sclk_codec"  LOC = "H3"  |IOSTANDARD = LVCMOS33;
+
+### Clock Gen SPI
+NET "cgen_miso"  LOC = "F22"  ;
+NET "cgen_mosi"  LOC = "E22"  ;
+NET "cgen_sclk"  LOC = "J19"  ;
+NET "cgen_sen_b"  LOC = "H20"  ;
+
+## Clock gen control
+NET "cgen_st_status"  LOC = "P20"  ;
+NET "cgen_st_ld"  LOC = "R17"  ;
+NET "cgen_st_refmon"  LOC = "P17"  ;
+NET "cgen_sync_b"  LOC = "U18"  ;
+NET "cgen_ref_sel"  LOC = "U19"  ;
+
+## 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"  ;
+
+#NET "reset_codec"  LOC = "C2"  ;
+
+NET "RXSYNC"  LOC = "F2"  ;
+NET "DB<11>"  LOC = "G6"  ;
+NET "DB<10>"  LOC = "G5"  ;
+NET "DB<9>"  LOC = "E4"  ;
+NET "DB<8>"  LOC = "E3"  ;
+NET "DB<7>"  LOC = "H6"  ;
+NET "DB<6>"  LOC = "H5"  ;
+NET "DB<5>"  LOC = "H1"  ;
+NET "DB<4>"  LOC = "G1"  ;
+NET "DB<3>"  LOC = "K5"  ;
+NET "DB<2>"  LOC = "K4"  ;
+NET "DB<1>"  LOC = "H2"  ;
+NET "DB<0>"  LOC = "L5"  ;
+
+NET "DA<11>"  LOC = "K6"  ;
+NET "DA<10>"  LOC = "K3"  ;
+NET "DA<9>"  LOC = "K2"  ;
+NET "DA<8>"  LOC = "N1"  ;
+NET "DA<7>"  LOC = "N5"  ;
+NET "DA<6>"  LOC = "N6"  ;
+NET "DA<5>"  LOC = "P2"  ;
+NET "DA<4>"  LOC = "P1"  ;
+NET "DA<3>"  LOC = "R6"  ;
+NET "DA<2>"  LOC = "P6"  ;
+NET "DA<1>"  LOC = "R1"  ;
+NET "DA<0>"  LOC = "R2"  ;
+
+NET "TX<13>"  LOC = "T6"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<12>"  LOC = "U1"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<11>"  LOC = "T1"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<10>"  LOC = "R5"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<9>"  LOC = "V1"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<8>"  LOC = "U2"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<7>"  LOC = "T4"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<6>"  LOC = "R3"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<5>"  LOC = "W1"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<4>"  LOC = "Y1"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<3>"  LOC = "V3"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<2>"  LOC = "V4"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<1>"  LOC = "W2"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TX<0>"  LOC = "W3"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TXSYNC"  LOC = "U5"   |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+NET "TXBLANK"  LOC = "U4"  |IOSTANDARD = LVCMOS33  |DRIVE = 12  |SLEW = FAST ;
+
+NET "PPS_IN"  LOC = "M5"  ;
+
+NET "io_tx<0>"  LOC = "AB20"  ;
+NET "io_tx<1>"  LOC = "Y17"  ;
+NET "io_tx<2>"  LOC = "Y16"  ;
+NET "io_tx<3>"  LOC = "U16"  ;
+NET "io_tx<4>"  LOC = "V16"  ;
+NET "io_tx<5>"  LOC = "AB19"  ;
+NET "io_tx<6>"  LOC = "AA19"  ;
+NET "io_tx<7>"  LOC = "U14"  ;
+NET "io_tx<8>"  LOC = "U15"  ;
+NET "io_tx<9>"  LOC = "AB17"  ;
+NET "io_tx<10>"  LOC = "AB18"  ;
+NET "io_tx<11>"  LOC = "Y13"  ;
+NET "io_tx<12>"  LOC = "W14"  ;
+NET "io_tx<13>"  LOC = "U13"  ;
+NET "io_tx<14>"  LOC = "AA15"  ;
+NET "io_tx<15>"  LOC = "AB14"  ;
+
+NET "io_rx<0>"  LOC = "Y8"  ;
+NET "io_rx<1>"  LOC = "Y9"  ;
+NET "io_rx<2>"  LOC = "V7"  ;
+NET "io_rx<3>"  LOC = "U8"  ;
+NET "io_rx<4>"  LOC = "V10"  ;
+NET "io_rx<5>"  LOC = "U9"  ;
+NET "io_rx<6>"  LOC = "AB7"  ;
+NET "io_rx<7>"  LOC = "AA8"  ;
+NET "io_rx<8>"  LOC = "W8"  ;
+NET "io_rx<9>"  LOC = "V8"  ;
+NET "io_rx<10>"  LOC = "AB5"  ;
+NET "io_rx<11>"  LOC = "AB6"  ;
+NET "io_rx<12>"  LOC = "AB4"  ;
+NET "io_rx<13>"  LOC = "AA4"  ;
+NET "io_rx<14>"  LOC = "W5"  ;
+NET "io_rx<15>"  LOC = "Y4"  ;
+
+#NET "CLKOUT2_CODEC"  LOC = "U12"  ;
+#NET "CLKOUT1_CODEC"  LOC = "V12"  ;
+
+## FPGA Config Pins
+#NET "fpga_cfg_prog_b"  LOC = "A2"  ;
+#NET "fpga_cfg_done"  LOC = "AB21"  ;
+#NET "fpga_cfg_din"  LOC = "W17"  ;
+#NET "fpga_cfg_cclk"  LOC = "V17"  ;
+#NET "fpga_cfg_init_b"  LOC = "W15"  ;
+
+## Unused
+#NET "unnamed_net53"  LOC = "B1"  ;  # TMS
+#NET "unnamed_net52"  LOC = "B22"  ; # TDO
+#NET "unnamed_net51"  LOC = "D2"  ;  # TDI
+#NET "unnamed_net50"  LOC = "A21"  ; # TCK
+#NET "unnamed_net59"  LOC = "F7"  ;  # PUDC_B
+#NET "unnamed_net58"  LOC = "V6"  ;  # M2
+#NET "unnamed_net57"  LOC = "AA3"  ; # M1
+#NET "unnamed_net56"  LOC = "AB3"  ; # M0
+#NET "GND"  LOC = "V19"  ;  # Suspend, unused
diff --git a/fpga/usrp2/top/u1e/u1e.v b/fpga/usrp2/top/u1e/u1e.v
new file mode 100644
index 000000000..445b14a03
--- /dev/null
+++ b/fpga/usrp2/top/u1e/u1e.v
@@ -0,0 +1,141 @@
+`timescale 1ns / 1ps
+//////////////////////////////////////////////////////////////////////////////////
+
+module u1e
+  (input CLK_FPGA_P, input CLK_FPGA_N,  // Diff
+   output [3:0] debug_led, output [31:0] debug, output [1:0] debug_clk,
+   input debug_pb, output FPGA_TXD, input FPGA_RXD,
+
+   // GPMC
+   input EM_CLK, inout [15:0] EM_D, input [10:1] EM_A, input [1:0] EM_NBE,
+   input EM_WAIT0, input EM_NCS4, input EM_NCS5, input EM_NCS6,
+   input EM_NWE, input EM_NOE,
+
+   inout db_sda, inout db_scl, // I2C
+
+   output db_sclk_tx, output db_sen_tx, output db_mosi_tx, input db_miso_tx,   // DB TX SPI
+   output db_sclk_rx, output db_sen_rx, output db_mosi_rx, input db_miso_rx,   // DB TX SPI
+   output sclk_codec, output sen_codec, output mosi_codec, input miso_codec,   // AD9862 main SPI
+   output cgen_sclk, output cgen_sen_b, output cgen_mosi, input cgen_miso,     // Clock gen SPI
+
+   input cgen_st_status, input cgen_st_ld, input cgen_st_refmon, output cgen_sync_b, output cgen_ref_sel,
+   
+   output overo_gpio144, output overo_gpio145, output overo_gpio146, output overo_gpio147,  // Fifo controls
+   input overo_gpio0, input overo_gpio14, input overo_gpio21, input overo_gpio22,  // Misc GPIO
+   input overo_gpio23, input overo_gpio64, input overo_gpio65, input overo_gpio127, // Misc GPIO
+   input overo_gpio128, input overo_gpio163, input overo_gpio170, input overo_gpio176, // Misc GPIO
+   
+   inout [15:0] io_tx, inout [15:0] io_rx,
+
+   output [13:0] TX, output TXSYNC, output TXBLANK,
+   input [11:0] DA, input [11:0] DB, input RXSYNC,
+  
+   input PPS_IN
+   );
+
+   // /////////////////////////////////////////////////////////////////////////
+   // Clocking
+   wire  clk_fpga, clk_fpga_in;
+   
+   IBUFGDS #(.IOSTANDARD("LVDS_33"), .DIFF_TERM("TRUE")) 
+   clk_fpga_pin (.O(clk_fpga_in),.I(CLK_FPGA_P),.IB(CLK_FPGA_N));
+
+   wire  clk_2x, dcm_rst, dcm_locked, clk_fb;
+   DCM #(.CLK_FEEDBACK ( "1X" ),
+	 .CLKDV_DIVIDE ( 2 ),
+	 .CLKFX_DIVIDE ( 2 ),
+	 .CLKFX_MULTIPLY ( 2 ),
+	 .CLKIN_DIVIDE_BY_2 ( "FALSE" ),
+	 .CLKIN_PERIOD ( 15.625 ),
+	 .CLKOUT_PHASE_SHIFT ( "NONE" ),
+	 .DESKEW_ADJUST ( "SYSTEM_SYNCHRONOUS" ),
+	 .DFS_FREQUENCY_MODE ( "LOW" ),
+	 .DLL_FREQUENCY_MODE ( "LOW" ),
+	 .DUTY_CYCLE_CORRECTION ( "TRUE" ),
+	 .FACTORY_JF ( 16'h8080 ),
+	 .PHASE_SHIFT ( 0 ),
+	 .STARTUP_WAIT ( "FALSE" ))
+   clk_doubler (.CLKFB(clk_fb), .CLKIN(clk_fpga_in), .RST(dcm_rst), 
+                .DSSEN(0), .PSCLK(0), .PSEN(0), .PSINCDEC(0), .PSDONE(), 
+		.CLKDV(), .CLKFX(), .CLKFX180(), 
+                .CLK2X(), .CLK2X180(), 
+                .CLK0(clk_fb), .CLK90(clk_fpga), .CLK180(), .CLK270(), 
+                .LOCKED(dcm_locked), .STATUS());
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // SPI
+   wire  mosi, sclk, miso;
+   assign { db_sclk_tx, db_mosi_tx } = ~db_sen_tx ? {sclk,mosi} : 2'b0;
+   assign { db_sclk_rx, db_mosi_rx } = ~db_sen_rx ? {sclk,mosi} : 2'b0;
+   assign { sclk_codec, mosi_codec } = ~sen_codec ? {sclk,mosi} : 2'b0;
+   assign { cgen_sclk, cgen_mosi } = ~cgen_sen_b ? {sclk,mosi} : 2'b0;
+   assign miso = (~db_sen_tx & db_miso_tx) | (~db_sen_rx & db_miso_rx) |
+		 (~sen_codec & miso_codec) | (~cgen_sen_b & cgen_miso);
+
+   // /////////////////////////////////////////////////////////////////////////
+   // TX DAC -- handle the interleaved data bus to DAC, with clock doubling DLL
+
+   assign TXBLANK = 0;
+   wire [13:0] tx_i, tx_q;
+
+   reg[13:0] delay_q;
+   always @(posedge clk_fpga)
+     delay_q <= 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(TX[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(delay_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
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // Main U1E Core
+   u1e_core u1e_core(.clk_fpga(clk_fpga), .rst_fpga(~debug_pb),
+		     .debug_led(debug_led), .debug(debug), .debug_clk(debug_clk),
+		     .debug_txd(FPGA_TXD), .debug_rxd(FPGA_RXD),
+		     .EM_CLK(EM_CLK), .EM_D(EM_D), .EM_A(EM_A), .EM_NBE(EM_NBE),
+		     .EM_WAIT0(EM_WAIT0), .EM_NCS4(EM_NCS4), .EM_NCS5(EM_NCS5), 
+		     .EM_NCS6(EM_NCS6), .EM_NWE(EM_NWE), .EM_NOE(EM_NOE),
+		     .db_sda(db_sda), .db_scl(db_scl),
+		     .sclk(sclk), .sen({cgen_sen_b,sen_codec,db_sen_tx,db_sen_rx}), .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),
+		     .tx_have_space(overo_gpio144), .tx_underrun(overo_gpio145),
+		     .rx_have_data(overo_gpio146), .rx_overrun(overo_gpio147),
+		     .io_tx(io_tx), .io_rx(io_rx),
+		     .tx_i(tx_i), .tx_q(tx_q), 
+		     .rx_i(DA), .rx_q(DB),
+		     .misc_gpio( {{overo_gpio128,overo_gpio163,overo_gpio170,overo_gpio176},
+				  {overo_gpio0,overo_gpio14,overo_gpio21,overo_gpio22},
+				  {overo_gpio23,overo_gpio64,overo_gpio65,overo_gpio127}}),
+		     .pps_in(PPS_IN) );
+
+   // /////////////////////////////////////////////////////////////////////////
+   // Local Debug
+   // assign debug_clk = {clk_fpga, clk_2x };
+   // assign debug = { TXSYNC, TXBLANK, TX };
+   
+endmodule // u1e
diff --git a/fpga/usrp2/top/u1e/u1e_core.v b/fpga/usrp2/top/u1e/u1e_core.v
new file mode 100644
index 000000000..619e44b8a
--- /dev/null
+++ b/fpga/usrp2/top/u1e/u1e_core.v
@@ -0,0 +1,459 @@
+
+
+//`define LOOPBACK 1
+//`define TIMED 1
+`define DSP 1
+
+module u1e_core
+  (input clk_fpga, input rst_fpga,
+   output [3:0] debug_led, output [31:0] debug, output [1:0] debug_clk,
+   output debug_txd, input debug_rxd,
+   
+   // GPMC
+   input EM_CLK, inout [15:0] EM_D, input [10:1] EM_A, input [1:0] EM_NBE,
+   input EM_WAIT0, input EM_NCS4, input EM_NCS5, input EM_NCS6,
+   input EM_NWE, input EM_NOE,
+   
+   inout db_sda, inout db_scl,
+   output sclk, output [7:0] 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_have_space, output tx_underrun, output rx_have_data, 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 [11:0] misc_gpio, input pps_in
+   );
+
+   localparam TXFIFOSIZE = 13;
+   localparam RXFIFOSIZE = 13;
+
+   localparam SR_RX_DSP = 0;     // 5 regs
+   localparam SR_CLEAR_FIFO = 6; // 1 reg
+   localparam SR_RX_CTRL = 8;    // 9 regs
+   localparam SR_TX_DSP = 17;    // 5 regs
+   localparam SR_TX_CTRL = 24;   // 2 regs
+   localparam SR_TIME64 = 28;    // 4 regs
+
+   wire 	COMPAT_NUM = 8'd2;
+   
+   wire 	wb_clk = clk_fpga;
+   wire 	wb_rst = rst_fpga;
+   
+   wire 	pps_int;
+   wire [63:0] 	vita_time;
+   reg [15:0] 	reg_leds, reg_cgen_ctrl, reg_test, xfer_rate;
+   
+   wire [7:0] 	set_addr;
+   wire [31:0] 	set_data;
+   wire 	set_stb;
+
+   wire [31:0] 	debug_vt;
+
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // GPMC 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;
+   reg [15:0] 	 tx_frame_len;
+   wire [15:0] 	 rx_frame_len;
+   wire [7:0] 	 rate;
+
+   wire 	 bus_error;
+
+   wire 	 clear_rx_int, clear_tx_int, clear_tx, clear_rx, do_clear;
+   
+   setting_reg #(.my_addr(SR_CLEAR_FIFO), .width(2)) sr_clear
+     (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
+      .in(set_data),.out({clear_tx_int,clear_rx_int}),.changed(do_clear));
+   assign clear_tx = clear_tx_int & do_clear;
+   assign clear_rx = clear_rx_int & do_clear;
+   
+   gpmc_async #(.TXFIFOSIZE(TXFIFOSIZE), .RXFIFOSIZE(RXFIFOSIZE))
+   gpmc (.arst(wb_rst),
+	 .EM_CLK(EM_CLK), .EM_D(EM_D), .EM_A(EM_A), .EM_NBE(EM_NBE),
+	 .EM_WAIT0(EM_WAIT0), .EM_NCS4(EM_NCS4), .EM_NCS6(EM_NCS6), .EM_NWE(EM_NWE), 
+	 .EM_NOE(EM_NOE),
+	 
+	 .rx_have_data(rx_have_data), .tx_have_space(tx_have_space),
+	 .bus_error(bus_error), .bus_reset(0),
+	 
+	 .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),
+	 
+	 .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_frame_len(tx_frame_len), .rx_frame_len(rx_frame_len),
+	 .debug(debug_gpmc));
+
+   wire 	 rx_sof = rx_data[32];
+   wire 	 rx_eof = rx_data[33];
+   wire 	 rx_src_rdy_int, rx_dst_rdy_int, tx_src_rdy_int, tx_dst_rdy_int;
+   
+`ifdef LOOPBACK
+   wire [7:0] 	 WHOAMI = 1;
+   
+   fifo_cascade #(.WIDTH(36), .SIZE(12)) loopback_fifo
+     (.clk(wb_clk), .reset(wb_rst), .clear(clear_tx | clear_rx),
+      .datain(tx_data), .src_rdy_i(tx_src_rdy), .dst_rdy_o(tx_dst_rdy),
+      .dataout(rx_data), .src_rdy_o(rx_src_rdy), .dst_rdy_i(rx_dst_rdy));
+
+   assign tx_underrun = 0;
+   assign rx_overrun = 0;
+
+   wire 	 run_tx, run_rx, strobe_tx, strobe_rx;
+`endif // LOOPBACK
+
+`ifdef TIMED
+   wire [7:0] 	 WHOAMI = 2;
+   
+   // TX side
+   wire 	 tx_enable;
+   
+   fifo_pacer tx_pacer
+     (.clk(wb_clk), .reset(wb_rst), .rate(rate), .enable(tx_enable),
+      .src1_rdy_i(tx_src_rdy), .dst1_rdy_o(tx_dst_rdy),
+      .src2_rdy_o(tx_src_rdy_int), .dst2_rdy_i(tx_dst_rdy_int),
+      .underrun(tx_underrun), .overrun());
+   
+   packet_verifier32 pktver32
+     (.clk(wb_clk), .reset(wb_rst), .clear(clear_tx),
+      .data_i(tx_data), .src_rdy_i(tx_src_rdy_int), .dst_rdy_o(tx_dst_rdy_int),
+      .total(total), .crc_err(crc_err), .seq_err(seq_err), .len_err(len_err));
+
+   // RX side
+   wire 	 rx_enable;
+
+   packet_generator32 pktgen32
+     (.clk(wb_clk), .reset(wb_rst), .clear(clear_rx),
+      .data_o(rx_data), .src_rdy_o(rx_src_rdy_int), .dst_rdy_i(rx_dst_rdy_int));
+
+   fifo_pacer rx_pacer
+     (.clk(wb_clk), .reset(wb_rst), .rate(rate), .enable(rx_enable),
+      .src1_rdy_i(rx_src_rdy_int), .dst1_rdy_o(rx_dst_rdy_int),
+      .src2_rdy_o(rx_src_rdy), .dst2_rdy_i(rx_dst_rdy),
+      .underrun(), .overrun(rx_overrun));
+   
+`endif //  `ifdef TIMED
+
+`ifdef DSP
+   wire [7:0] 	 WHOAMI = 0;
+   
+   wire [31:0] 	 debug_rx_dsp, vrc_debug, vrf_debug;
+   
+   // /////////////////////////////////////////////////////////////////////////
+   // DSP RX
+   wire [31:0] 	 sample_rx, sample_tx;
+   wire 	 strobe_rx, strobe_tx;
+   wire 	 rx1_dst_rdy, rx1_src_rdy;
+   wire [99:0] 	 rx1_data;
+   wire 	 run_rx;
+   wire [35:0] 	 vita_rx_data;
+   wire 	 vita_rx_src_rdy, vita_rx_dst_rdy;
+      
+   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_control #(.BASE(SR_RX_CTRL), .WIDTH(32)) vita_rx_control
+     (.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),
+      .sample(sample_rx), .run(run_rx), .strobe(strobe_rx),
+      .sample_fifo_o(rx1_data), .sample_fifo_dst_rdy_i(rx1_dst_rdy), .sample_fifo_src_rdy_o(rx1_src_rdy),
+      .debug_rx(vrc_debug));
+
+   vita_rx_framer #(.BASE(SR_RX_CTRL), .MAXCHAN(1)) vita_rx_framer
+     (.clk(wb_clk), .reset(wb_rst), .clear(clear_rx),
+      .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+      .sample_fifo_i(rx1_data), .sample_fifo_dst_rdy_o(rx1_dst_rdy), .sample_fifo_src_rdy_i(rx1_src_rdy),
+      .data_o(vita_rx_data), .dst_rdy_i(vita_rx_dst_rdy), .src_rdy_o(vita_rx_src_rdy),
+      .fifo_occupied(), .fifo_full(), .fifo_empty(),
+      .debug_rx(vrf_debug) );
+   
+   fifo36_mux #(.prio(0)) mux_err_stream
+     (.clk(wb_clk), .reset(wb_rst), .clear(0),
+      .data0_i(vita_rx_data), .src0_rdy_i(vita_rx_src_rdy), .dst0_rdy_o(vita_rx_dst_rdy),
+      .data1_i(tx_err_data), .src1_rdy_i(tx_err_src_rdy), .dst1_rdy_o(tx_err_dst_rdy),
+      .data_o(rx_data), .src_rdy_o(rx_src_rdy), .dst_rdy_i(rx_dst_rdy));
+   
+   // ///////////////////////////////////////////////////////////////////////////////////
+   // 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), .PROT_ENG_FLAGS(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(underrun), .run(run_tx),
+      .debug(debug_vt));
+   
+   assign tx_i = tx_i_int[15:2];
+   assign tx_q = tx_q_int[15:2];
+   
+`else // !`ifdef DSP
+   // Dummy DSP signal generator for test purposes
+   wire [23:0] 	 tx_i_int, tx_q_int;
+   wire [23:0] 	 freq = {reg_test,8'd0};
+   reg [23:0] 	 phase;
+   
+   always @(posedge wb_clk)
+     phase <= phase + freq;
+   
+   cordic_z24 #(.bitwidth(24)) tx_cordic
+     (.clock(wb_clk), .reset(wb_rst), .enable(1),
+      .xi(24'd2500000), .yi(24'd0), .zi(phase), .xo(tx_i_int), .yo(tx_q_int), .zo());
+
+   assign tx_i = tx_i_int[23:10];
+   assign tx_q = tx_q_int[23:10];
+`endif // !`ifdef DSP
+      
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // 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'hF),	.s9_addr(4'h9), .s9_mask(4'hF),
+		.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 s7_ack = 0;
+   assign s8_ack = 0;   assign s9_ack = 0;   assign sa_ack = 0;   assign sb_ack = 0;
+   assign sc_ack = 0;   assign sd_ack = 0;   assign se_ack = 0;   assign sf_ack = 0;
+
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Slave 0, Misc LEDs, Switches, controls
+   
+   localparam REG_LEDS = 7'd0;         // out
+   localparam REG_SWITCHES = 7'd2;     // in
+   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;
+	  tx_frame_len <= 0;
+	  xfer_rate <= 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_TX_FRAMELEN :
+	     tx_frame_len <= s0_dat_mosi;
+	   REG_XFER_RATE :
+	     xfer_rate <= s0_dat_mosi;
+	 endcase // case (s0_adr[6:0])
+
+   assign tx_enable = xfer_rate[15];
+   assign rx_enable = xfer_rate[14];
+   assign rate = xfer_rate[7:0];
+   
+   assign { debug_led[3:0] } = {run_rx,run_tx,reg_leds[1:0]};
+   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_SWITCHES) ? { 16'd0 } :
+			(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_RX_FRAMELEN) ? rx_frame_len :
+			(s0_adr[6:0] == REG_COMPAT) ? { WHOAMI, 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[4:2]),.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 #5
+
+   // only have 32 regs, 32 bits each with current setup...
+   settings_bus_16LE #(.AWIDTH(11),.RWIDTH(11-4-2)) settings_bus_16LE
+     (.wb_clk(wb_clk),.wb_rst(wb_rst),.wb_adr_i(s5_adr),.wb_dat_i(s5_dat_mosi),
+      .wb_stb_i(s5_stb),.wb_we_i(s5_we),.wb_ack_o(s5_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), .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));
+
+
+   // /////////////////////////////////////////////////////////////////////////
+   // VITA Timing
+
+   time_64bit #(.TICKS_PER_SEC(32'd64000000),.BASE(SR_TIME64)) time_64bit
+     (.clk(wb_clk), .rst(wb_rst), .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
+      .pps(pps_in), .vita_time(vita_time), .pps_int(pps_int));
+   
+   // /////////////////////////////////////////////////////////////////////////////////////
+   // Debug circuitry
+
+   assign debug_clk = { EM_CLK, clk_fpga };
+
+   assign debug = { { rx_have_data, tx_have_space, EM_NCS6, EM_NCS5, EM_NCS4, EM_NWE, EM_NOE, rx_overrun },
+		    { tx_src_rdy, tx_src_rdy_int, tx_dst_rdy, tx_dst_rdy_int, rx_src_rdy, rx_src_rdy_int, rx_dst_rdy, rx_dst_rdy_int },
+		    { EM_D } };
+
+   assign debug_gpio_0 = { {run_tx, strobe_tx, run_rx, strobe_rx, tx_i[11:0]}, 
+			   {2'b00, tx_src_rdy, tx_dst_rdy, tx_q[11:0]} };
+
+   assign debug_gpio_1 = debug_vt;
+   
+/*   
+   assign debug_gpio_1 = { {rx_enable, rx_src_rdy, rx_dst_rdy, rx_src_rdy & ~rx_dst_rdy},
+			   {tx_enable, tx_src_rdy, tx_dst_rdy, tx_dst_rdy & ~tx_src_rdy},
+			   {rx_sof, rx_eof, rx_src_rdy, rx_dst_rdy, rx_data[33:32],2'b0},
+			   {2'b0, bus_error, debug_gpmc[4:0] },
+			   {misc_gpio[7:0]} };
+  */ 
+endmodule // u1e_core
diff --git a/fpga/usrp2/top/u1e_ethdebug/.gitignore b/fpga/usrp2/top/u1e_ethdebug/.gitignore
new file mode 100644
index 000000000..8d872713e
--- /dev/null
+++ b/fpga/usrp2/top/u1e_ethdebug/.gitignore
@@ -0,0 +1,6 @@
+*~
+build
+*.log
+*.cmd
+tb_u1e
+*.lxt
diff --git a/fpga/usrp2/top/u1e_ethdebug/Makefile b/fpga/usrp2/top/u1e_ethdebug/Makefile
new file mode 100644
index 000000000..751b52970
--- /dev/null
+++ b/fpga/usrp2/top/u1e_ethdebug/Makefile
@@ -0,0 +1,83 @@
+#
+# Copyright 2008 Ettus Research LLC
+#
+
+##################################################
+# Project Setup
+##################################################
+TOP_MODULE = u1e
+BUILD_DIR = $(abspath build$(ISE))
+
+##################################################
+# Include other makefiles
+##################################################
+
+include ../Makefile.common
+
+##################################################
+# Project Properties
+##################################################
+export PROJECT_PROPERTIES := \
+family "Spartan-3A DSP" \
+device xc3sd1800a \
+package cs484 \
+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 = \
+u1e.v \
+u1e.ucf
+
+SOURCES = $(abspath $(TOP_SRCS))
+
+##################################################
+# Process Properties
+##################################################
+SYNTHESIZE_PROPERTIES = \
+"Number of Clock Buffers" 8 \
+"Pack I/O Registers into IOBs" Yes \
+"Optimization Effort" High \
+"Optimize Instantiated Primitives" TRUE \
+"Register Balancing" Yes \
+"Use Clock Enable" Auto \
+"Use Synchronous Reset" Auto \
+"Use Synchronous Set" Auto
+
+TRANSLATE_PROPERTIES = \
+"Macro Search Path" "$(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/u1e_ethdebug/u1e.ucf b/fpga/usrp2/top/u1e_ethdebug/u1e.ucf
new file mode 100644
index 000000000..d6a2ea4ed
--- /dev/null
+++ b/fpga/usrp2/top/u1e_ethdebug/u1e.ucf
@@ -0,0 +1,88 @@
+
+## 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
new file mode 100644
index 000000000..2a543a313
--- /dev/null
+++ b/fpga/usrp2/top/u1e_ethdebug/u1e.v
@@ -0,0 +1,28 @@
+`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/.gitignore b/fpga/usrp2/top/u1e_passthru/.gitignore
new file mode 100644
index 000000000..1b2211df0
--- /dev/null
+++ b/fpga/usrp2/top/u1e_passthru/.gitignore
@@ -0,0 +1 @@
+build*
diff --git a/fpga/usrp2/top/u1e_passthru/Makefile b/fpga/usrp2/top/u1e_passthru/Makefile
new file mode 100644
index 000000000..d1950629b
--- /dev/null
+++ b/fpga/usrp2/top/u1e_passthru/Makefile
@@ -0,0 +1,99 @@
+#
+# Copyright 2008 Ettus Research LLC
+#
+
+##################################################
+# Project Setup
+##################################################
+TOP_MODULE = passthru
+BUILD_DIR = $(abspath build$(ISE))
+
+##################################################
+# 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 ../../extram/Makefile.srcs
+include ../../gpmc/Makefile.srcs
+
+##################################################
+# Project Properties
+##################################################
+export PROJECT_PROPERTIES := \
+family "Spartan-3A DSP" \
+device xc3sd1800a \
+package cs484 \
+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 = \
+passthru.v \
+passthru.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) $(EXTRAM_SRCS) \
+$(GPMC_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/u1e_passthru/passthru.ucf b/fpga/usrp2/top/u1e_passthru/passthru.ucf
new file mode 100644
index 000000000..64e6f0440
--- /dev/null
+++ b/fpga/usrp2/top/u1e_passthru/passthru.ucf
@@ -0,0 +1,6 @@
+NET "overo_gpio145"  LOC = "C7"  ;
+NET "cgen_mosi"  LOC = "E22"  ;
+NET "cgen_sclk"  LOC = "J19"  ;
+NET "cgen_sen_b"  LOC = "H20"  ;
+NET "fpga_cfg_din"  LOC = "W17"  ;
+NET "fpga_cfg_cclk"  LOC = "V17"  ;
diff --git a/fpga/usrp2/top/u1e_passthru/passthru.v b/fpga/usrp2/top/u1e_passthru/passthru.v
new file mode 100644
index 000000000..12e4db017
--- /dev/null
+++ b/fpga/usrp2/top/u1e_passthru/passthru.v
@@ -0,0 +1,18 @@
+`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