Merged r9433:9527 from features/gr-usrp2 into trunk. Adds usrp2 and gr-usrp2 top-level components. Trunk passes distcheck with mb-gcc installed, but currently not without them. The key issue is that when mb-gcc is not installed, the build system skips over the usrp2/firmware directory, and the firmware include files don't get put into the dist tarball. But we can't do the usual DIST_SUBDIRS method as the firmware is a subpackage.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9528 221aa14e-8319-0410-a670-987f0aec2ac5

2 files changed, 657 insertions, 0 deletions

diff --git a/top/u2plus/u2plus.ucf b/top/u2plus/u2plus.ucf
new file mode 100755
index 000000000..3f71d0b1e
--- /dev/null
+++ b/top/u2plus/u2plus.ucf
@@ -0,0 +1,280 @@
+NET "leds[0]"  LOC = "A17"  ; 
+NET "leds[1]"  LOC = "B20"  ; 
+NET "leds[2]"  LOC = "D13"  ; 
+NET "leds[3]"  LOC = "A14"  ; 
+NET "leds[4]"  LOC = "W15"  ;
+NET "dipsw[0]"  LOC = "C11"  ;
+NET "dipsw[1]"  LOC = "F12"  ;
+NET "dipsw[2]"  LOC = "E17"  ;
+NET "dipsw[3]"  LOC = "E10"  ;
+NET "debug[0]"  LOC = "AB19"  ;
+NET "debug[1]"  LOC = "AA19"  ;
+NET "debug[2]"  LOC = "U14"  ;
+NET "debug[3]"  LOC = "U15"  ;
+NET "debug[4]"  LOC = "AB17"  ;
+NET "debug[5]"  LOC = "AB18"  ;
+NET "debug[6]"  LOC = "Y13"  ;
+NET "debug[7]"  LOC = "W14"  ;
+NET "debug[8]"  LOC = "U13"  ;
+NET "debug[9]"  LOC = "AA15"  ;
+NET "debug[10]"  LOC = "AB14"  ;
+NET "debug[11]"  LOC = "Y8"  ;
+NET "debug[12]"  LOC = "Y9"  ;
+NET "debug[13]"  LOC = "V7"  ;
+NET "debug[14]"  LOC = "U8"  ;
+NET "debug[15]"  LOC = "V10"  ;
+NET "debug[16]"  LOC = "U9"  ;
+NET "debug[17]"  LOC = "AB7"  ;
+NET "debug[18]"  LOC = "AA8"  ;
+NET "debug[19]"  LOC = "W8"  ;
+NET "debug[20]"  LOC = "V8"  ;
+NET "debug[21]"  LOC = "AB5"  ;
+NET "debug[22]"  LOC = "AB6"  ;
+NET "debug[23]"  LOC = "AB4"  ;
+NET "debug[24]"  LOC = "AA4"  ;
+NET "debug[25]"  LOC = "W5"  ;
+NET "debug[26]"  LOC = "Y4"  ;
+NET "debug[27]"  LOC = "V11"  ;
+NET "debug[28]"  LOC = "U10"  ;
+NET "debug[29]"  LOC = "AB10"  ;
+NET "debug[30]"  LOC = "AA10"  ;
+NET "debug[31]"  LOC = "Y5"  ;
+NET "debug_clk[0]"  LOC = "V16"  ;
+NET "debug_clk[1]"  LOC = "U16"  ;
+NET "uart_tx_o"  LOC = "C19"  ;
+NET "uart_rx_i"  LOC = "A20"  ;
+NET "exp_pps_in_p"  LOC = "AA17"  ; 
+NET "exp_pps_in_n"  LOC = "AB16"  ; 
+NET "exp_pps_out_p"  LOC = "Y18"  ; 
+NET "exp_pps_out_n"  LOC = "Y19"  ; 
+NET "GMII_COL"  LOC = "J19"  ; 
+NET "GMII_CRS"  LOC = "E22"  ; 
+NET "GMII_TXD[0]"  LOC = "F22"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "GMII_TXD[1]"  LOC = "G18"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "GMII_TXD[2]"  LOC = "G17"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "GMII_TXD[3]"  LOC = "E20"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "GMII_TXD[4]"  LOC = "F21"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "GMII_TXD[5]"  LOC = "E19"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "GMII_TXD[6]"  LOC = "D20"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "GMII_TXD[7]"  LOC = "D22"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "GMII_TX_EN"  LOC = "D21" | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ; 
+NET "GMII_TX_ER"  LOC = "F19" | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ; 
+NET "GMII_GTX_CLK"  LOC = "F18" | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ; 
+NET "GMII_TX_CLK"  LOC = "L20"  ; 
+NET "GMII_RXD[0]"  LOC = "K17"  ;
+NET "GMII_RXD[1]"  LOC = "L18"  ;
+NET "GMII_RXD[2]"  LOC = "J22"  ;
+NET "GMII_RXD[3]"  LOC = "J21"  ;
+NET "GMII_RXD[4]"  LOC = "G20"  ;
+NET "GMII_RXD[5]"  LOC = "H21"  ;
+NET "GMII_RXD[6]"  LOC = "C21"  ;
+NET "GMII_RXD[7]"  LOC = "C22"  ;
+NET "GMII_RX_CLK"  LOC = "L21"  ; 
+NET "GMII_RX_DV"  LOC = "G19"  ; 
+NET "GMII_RX_ER"  LOC = "F20"  ; 
+NET "MDIO"  LOC = "H22" | PULLUP ; 
+NET "MDC"  LOC = "G22"  ; 
+NET "PHY_INTn"  LOC = "H20"  ; 
+NET "PHY_RESETn"  LOC = "J17"  ; 
+NET "PHY_CLK"  LOC = "M18"  ; 
+NET "clk_to_mac"  LOC = "L17"  ; 
+NET "eth_led"  LOC = "K16"  ;
+NET "ser_enable"  LOC = "Y21"  ; 
+NET "ser_prbsen"  LOC = "U19"  ; 
+NET "ser_loopen"  LOC = "U18"  ; 
+NET "ser_rx_en"  LOC = "AA22"  ; 
+NET "ser_tx_clk"  LOC = "J20" | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ; 
+NET "ser_t[0]"  LOC = "U20"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[1]"  LOC = "R18"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[2]"  LOC = "P19"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[3]"  LOC = "U22"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[4]"  LOC = "P16"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[5]"  LOC = "N17"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[6]"  LOC = "P22"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[7]"  LOC = "R22"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[8]"  LOC = "N19"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[9]"  LOC = "N20"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[10]"  LOC = "M22"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[11]"  LOC = "N22"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[12]"  LOC = "K22"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[13]"  LOC = "L22"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[14]"  LOC = "K18"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_t[15]"  LOC = "K19"  | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ;
+NET "ser_tklsb"  LOC = "K20" | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ; 
+NET "ser_tkmsb"  LOC = "H18" | IOSTANDARD = LVCMOS25  | DRIVE = 12  | SLEW = FAST ; 
+NET "ser_rx_clk"  LOC = "N21"  ; 
+NET "ser_r[0]"  LOC = "T22"  ;
+NET "ser_r[1]"  LOC = "W20"  ;
+NET "ser_r[2]"  LOC = "W21"  ;
+NET "ser_r[3]"  LOC = "U21"  ;
+NET "ser_r[4]"  LOC = "V22"  ;
+NET "ser_r[5]"  LOC = "P17"  ;
+NET "ser_r[6]"  LOC = "R17"  ;
+NET "ser_r[7]"  LOC = "P20"  ;
+NET "ser_r[8]"  LOC = "R21"  ;
+NET "ser_r[9]"  LOC = "V20"  ;
+NET "ser_r[10]"  LOC = "W19"  ;
+NET "ser_r[11]"  LOC = "T17"  ;
+NET "ser_r[12]"  LOC = "T18"  ;
+NET "ser_r[13]"  LOC = "Y22"  ;
+NET "ser_r[14]"  LOC = "W22"  ;
+NET "ser_r[15]"  LOC = "R20"  ;
+NET "ser_rklsb"  LOC = "R19"  ;
+NET "ser_rkmsb"  LOC = "T20"  ; 
+NET "adc_a[0]"  LOC = "P3"  ;
+NET "adc_a[1]"  LOC = "N3"  ;
+NET "adc_a[2]"  LOC = "AA1"  ;
+NET "adc_a[3]"  LOC = "Y2"  ;
+NET "adc_a[4]"  LOC = "C5"  ;
+NET "adc_a[5]"  LOC = "E6"  ;
+NET "adc_a[6]"  LOC = "C7"  ;
+NET "adc_a[7]"  LOC = "E8"  ;
+NET "adc_a[8]"  LOC = "F8"  ;
+NET "adc_a[9]"  LOC = "A4"  ;
+NET "adc_a[10]"  LOC = "B4"  ;
+NET "adc_a[11]"  LOC = "C4"  ;
+NET "adc_a[12]"  LOC = "D5"  ;
+NET "adc_a[13]"  LOC = "A3"  ;
+NET "adc_ovf_a"  LOC = "B3"  ; 
+NET "adc_oen_a"  LOC = "A6"  ; 
+NET "adc_pdn_a"  LOC = "D7"  ; 
+NET "adc_b[0]"  LOC = "J1"  ;
+NET "adc_b[1]"  LOC = "M1"  ;
+NET "adc_b[2]"  LOC = "P4"  ;
+NET "adc_b[3]"  LOC = "E1"  ;
+NET "adc_b[4]"  LOC = "D1"  ;
+NET "adc_b[5]"  LOC = "D4"  ;
+NET "adc_b[6]"  LOC = "D3"  ;
+NET "adc_b[7]"  LOC = "J7"  ;
+NET "adc_b[8]"  LOC = "J6"  ;
+NET "adc_b[9]"  LOC = "J4"  ;
+NET "adc_b[10]"  LOC = "J3"  ;
+NET "adc_b[11]"  LOC = "N4"  ;
+NET "adc_b[12]"  LOC = "M3"  ;
+NET "adc_b[13]"  LOC = "U3"  ;
+NET "adc_ovf_b"  LOC = "T3"  ; 
+NET "adc_oen_b"  LOC = "B6"  ; 
+NET "adc_pdn_b"  LOC = "A5"  ; 
+NET "dac_a[0]"  LOC = "N5"  ;
+NET "dac_a[1]"  LOC = "N1"  ;
+NET "dac_a[2]"  LOC = "K2"  ;
+NET "dac_a[3]"  LOC = "K3"  ;
+NET "dac_a[4]"  LOC = "K6"  ;
+NET "dac_a[5]"  LOC = "L5"  ;
+NET "dac_a[6]"  LOC = "H2"  ;
+NET "dac_a[7]"  LOC = "K4"  ;
+NET "dac_a[8]"  LOC = "K5"  ;
+NET "dac_a[9]"  LOC = "G1"  ;
+NET "dac_a[10]"  LOC = "H1"  ;
+NET "dac_a[11]"  LOC = "H5"  ;
+NET "dac_a[12]"  LOC = "H6"  ;
+NET "dac_a[13]"  LOC = "E3"  ;
+NET "dac_a[14]"  LOC = "E4"  ;
+NET "dac_a[15]"  LOC = "G5"  ;
+NET "dac_b[0]"  LOC = "G6"  ;
+NET "dac_b[1]"  LOC = "F2"  ;
+NET "dac_b[2]"  LOC = "F1"  ;
+NET "dac_b[3]"  LOC = "H3"  ;
+NET "dac_b[4]"  LOC = "H4"  ;
+NET "dac_b[5]"  LOC = "F4"  ;
+NET "dac_b[6]"  LOC = "F5"  ;
+NET "dac_b[7]"  LOC = "C2"  ;
+NET "dac_b[8]"  LOC = "C1"  ;
+NET "dac_b[9]"  LOC = "F3"  ;
+NET "dac_b[10]"  LOC = "G3"  ;
+NET "dac_b[11]"  LOC = "M6"  ;
+NET "dac_b[12]"  LOC = "N7"  ;
+NET "dac_b[13]"  LOC = "L3"  ;
+NET "dac_b[14]"  LOC = "M2"  ;
+NET "dac_b[15]"  LOC = "K1"  ;
+NET "dac_lock"  LOC = "L1"  ;
+NET "SCL"  LOC = "B19"  ; 
+NET "SDA"  LOC = "B17"  ; 
+NET "clk_en[0]"  LOC = "AB20"  ;
+NET "clk_en[1]"  LOC = "AA20"  ;
+NET "clk_sel[0]"  LOC = "Y17"  ;
+NET "clk_sel[1]"  LOC = "Y16"  ;
+NET "clk_func"  LOC = "W13"  ; 
+NET "clk_status"  LOC = "W18"  ;
+NET "clk_fpga_p"  LOC = "AA12"  ; 
+NET "clk_fpga_n"  LOC = "AB12"  ; 
+NET "pps_in"  LOC = "Y14"  ; 
+NET "POR"  LOC = "AB15"  ;
+NET "sclk"  LOC = "AA14"  ; 
+NET "sen_clk"  LOC = "AB13"  ; 
+NET "sdi"  LOC = "V12"  ; 
+NET "sdo"  LOC = "U12"  ; 
+NET "sen_dac"  LOC = "W2"  ; 
+NET "sen_tx_db"  LOC = "W3"  ; 
+NET "sen_tx_adc"  LOC = "U5"  ; 
+NET "sen_tx_dac"  LOC = "U4"  ; 
+NET "mosi_tx"  LOC = "V4"  ;
+NET "miso_dac"  LOC = "M5"  ;
+NET "miso_tx_db"  LOC = "W1"  ;
+NET "miso_tx_adc"  LOC = "Y1"  ;
+NET "sclk_tx"  LOC = "V3"  ;
+NET "sen_rx_db"  LOC = "B9"  ; 
+NET "sclk_rx_db"  LOC = "B8"  ; 
+NET "sdo_rx_db"  LOC = "A10"  ; 
+NET "sdi_rx_db"  LOC = "E12"  ; 
+NET "sen_rx_adc"  LOC = "A9"  ; 
+NET "sclk_rx_adc"  LOC = "A8"  ; 
+NET "sdo_rx_adc"  LOC = "A12"  ; 
+NET "sdi_rx_adc"  LOC = "A7"  ; 
+NET "sen_rx_dac"  LOC = "E11"  ; 
+NET "sclk_rx_dac"  LOC = "F10"  ; 
+NET "sdi_rx_dac"  LOC = "E7"  ; 
+NET "io_tx[0]"  LOC = "R3"  ;
+NET "io_tx[1]"  LOC = "T4"  ;
+NET "io_tx[2]"  LOC = "U2"  ;
+NET "io_tx[3]"  LOC = "V1"  ;
+NET "io_tx[4]"  LOC = "R5"  ;
+NET "io_tx[5]"  LOC = "T1"  ;
+NET "io_tx[6]"  LOC = "U1"  ;
+NET "io_tx[7]"  LOC = "T6"  ;
+NET "io_tx[8]"  LOC = "T5"  ;
+NET "io_tx[9]"  LOC = "R2"  ;
+NET "io_tx[10]"  LOC = "R1"  ;
+NET "io_tx[11]"  LOC = "P6"  ;
+NET "io_tx[12]"  LOC = "R6"  ;
+NET "io_tx[13]"  LOC = "P1"  ;
+NET "io_tx[14]"  LOC = "P2"  ;
+NET "io_tx[15]"  LOC = "N6"  ;
+
+NET "io_rx[0]"  LOC = "G8"  ;
+NET "io_rx[1]"  LOC = "F9"  ;
+NET "io_rx[2]"  LOC = "C8"  ;
+NET "io_rx[3]"  LOC = "D9"  ;
+NET "io_rx[4]"  LOC = "C6"  ;
+NET "io_rx[5]"  LOC = "D6"  ;
+NET "io_rx[6]"  LOC = "C9"  ;
+NET "io_rx[7]"  LOC = "D10"  ;
+NET "io_rx[8]"  LOC = "B11"  ;
+NET "io_rx[9]"  LOC = "A11"  ;
+NET "io_rx[10]"  LOC = "C13"  ;
+NET "io_rx[11]"  LOC = "C12"  ;
+NET "io_rx[12]"  LOC = "F14"  ;
+NET "io_rx[13]"  LOC = "F13"  ;
+NET "io_rx[14]"  LOC = "D14"  ;
+NET "io_rx[15]"  LOC = "A13"  ;
+NET "flash_cs"  LOC = "U7"  ;
+NET "flash_clk"  LOC = "V17"  ;
+NET "flash_mosi"  LOC = "V13"  ;
+NET "flash_miso"  LOC = "W17"  ;
+
+
+NET "clk_muxed" TNM_NET = "clk_muxed";
+TIMESPEC "TS_clk_muxed" = PERIOD "clk_muxed" 10 ns HIGH 50 %;
+
+NET "clk_to_mac" TNM_NET = "clk_to_mac";
+TIMESPEC "TS_clk_to_mac" = PERIOD "clk_to_mac" 8 ns HIGH 50 %;
+
+NET "cpld_clk" TNM_NET = "cpld_clk";
+TIMESPEC "TS_cpld_clk" = PERIOD "cpld_clk" 40 ns HIGH 50 %;
+
+NET "GMII_RX_CLK" TNM_NET = "GMII_RX_CLK";
+TIMESPEC "TS_GMII_RX_CLK" = PERIOD "GMII_RX_CLK" 8 ns HIGH 50 %;
+
+NET "ser_rx_clk" TNM_NET = "ser_rx_clk";
+TIMESPEC "TS_ser_rx_clk" = PERIOD "ser_rx_clk" 10 ns HIGH 50 %;
+
diff --git a/top/u2plus/u2plus.v b/top/u2plus/u2plus.v
new file mode 100644
index 000000000..e95445867
--- /dev/null
+++ b/top/u2plus/u2plus.v
@@ -0,0 +1,377 @@
+`timescale 1ns / 1ps
+//////////////////////////////////////////////////////////////////////////////////
+
+module u2plus
+  (
+   // Misc, debug
+   output [4:0] leds,  // LED4 is shared w/INIT_B
+   input [3:0] dipsw,
+   output [31:0] debug,
+   output [1:0] debug_clk,
+   output uart_tx_o,
+   input uart_rx_i,
+   
+   // Expansion
+   input exp_pps_in_p, // Diff
+   input exp_pps_in_n, // Diff
+   output exp_pps_out_p, // Diff 
+   output exp_pps_out_n, // Diff 
+   
+   // GMII
+   //   GMII-CTRL
+   input GMII_COL,
+   input GMII_CRS,
+
+   //   GMII-TX
+   output reg [7:0] GMII_TXD,
+   output reg GMII_TX_EN,
+   output reg 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,
+   input PHY_CLK,   // possibly use on-board osc
+   input clk_to_mac,
+   output eth_led,
+   
+   // SERDES
+   output ser_enable,
+   output ser_prbsen,
+   output ser_loopen,
+   output ser_rx_en,
+   
+   output ser_tx_clk,
+   output reg [15:0] ser_t,
+   output reg ser_tklsb,
+   output reg ser_tkmsb,
+
+   input ser_rx_clk,
+   input [15:0] ser_r,
+   input ser_rklsb,
+   input ser_rkmsb,
+   
+   // 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,
+   input dac_lock,     // unused for now
+   
+   // I2C
+   inout SCL,
+   inout SDA,
+
+   // 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,
+
+   // Clocks
+   input clk_fpga_p,  // Diff
+   input clk_fpga_n,  // Diff
+   input pps_in,
+   input POR,
+   
+   // AD9510 SPI
+   output sclk,
+   output sen_clk,
+   output sdi,
+   input sdo,
+
+   // TX side SPI -- tx_db, tx_adc, tx_dac, 9777
+   output sen_dac,
+   output sen_tx_db,
+   output sen_tx_adc,
+   output sen_tx_dac,
+   output mosi_tx,
+   input miso_dac,
+   input miso_tx_db,
+   input miso_tx_adc,
+   output sclk_tx,
+
+   // RX side SPI
+   output sen_rx_db,
+   output sclk_rx_db,
+   input sdo_rx_db,
+   output sdi_rx_db,
+
+   output sen_rx_adc,
+   output sclk_rx_adc,
+   input sdo_rx_adc,
+   output sdi_rx_adc,
+
+   output sen_rx_dac,
+   output sclk_rx_dac,
+   output sdi_rx_dac,
+
+   // DB IO Pins
+   inout [15:0] io_tx,
+   inout [15:0] io_rx,
+
+   // SPI Flash
+   output flash_cs,
+   output flash_clk,
+   output flash_mosi,
+   input flash_miso
+   );
+
+   // FPGA-specific pins connections
+   wire 	aux_clk = PHY_CLK;
+
+   wire 	clk_fpga, dsp_clk, clk_div, dcm_out, wb_clk, clock_ready;
+
+   IBUFGDS clk_fpga_pin (.O(clk_fpga),.I(clk_fpga_p),.IB(clk_fpga_n));
+   defparam 	clk_fpga_pin.IOSTANDARD = "LVPECL_25";
+   
+   wire 	exp_pps_in;
+   IBUFDS exp_pps_in_pin (.O(exp_pps_in),.I(exp_pps_in_p),.IB(exp_pps_in_n));
+   defparam 	exp_pps_in_pin.IOSTANDARD = "LVDS_25";
+   
+   wire 	exp_pps_out;
+   OBUFDS exp_pps_out_pin (.O(exp_pps_out_p),.OB(exp_pps_out_n),.I(exp_pps_out));
+   defparam 	exp_pps_out_pin.IOSTANDARD = "LVDS_25";
+
+   reg [5:0] 	clock_ready_d;
+   always @(posedge aux_clk)
+     clock_ready_d[5:0] <= {clock_ready_d[4:0],clock_ready};
+
+   wire 	dcm_rst = ~&clock_ready_d & |clock_ready_d;
+   wire 	clk_muxed = clock_ready ? clk_fpga : aux_clk;
+
+   wire 	adc_on_a, adc_on_b, adc_oe_a, adc_oe_b;
+   assign 	adc_oen_a = ~adc_oe_a;
+   assign 	adc_oen_b = ~adc_oe_b;
+   assign 	adc_pdn_a = ~adc_on_a; 	
+   assign 	adc_pdn_b = ~adc_on_b; 	
+
+   // Handle Clocks
+   DCM DCM_INST (.CLKFB(dsp_clk), 
+                 .CLKIN(clk_muxed), 
+                 .DSSEN(0), 
+                 .PSCLK(0), 
+                 .PSEN(0), 
+                 .PSINCDEC(0), 
+                 .RST(dcm_rst), 
+                 .CLKDV(clk_div), 
+                 .CLKFX(), 
+                 .CLKFX180(), 
+                 .CLK0(dcm_out), 
+                 .CLK2X(), 
+                 .CLK2X180(), 
+                 .CLK90(), 
+                 .CLK180(), 
+                 .CLK270(), 
+                 .LOCKED(LOCKED_OUT), 
+                 .PSDONE(), 
+                 .STATUS());
+   defparam DCM_INST.CLK_FEEDBACK = "1X";
+   defparam DCM_INST.CLKDV_DIVIDE = 2.0;
+   defparam DCM_INST.CLKFX_DIVIDE = 1;
+   defparam DCM_INST.CLKFX_MULTIPLY = 4;
+   defparam DCM_INST.CLKIN_DIVIDE_BY_2 = "FALSE";
+   defparam DCM_INST.CLKIN_PERIOD = 10.000;
+   defparam DCM_INST.CLKOUT_PHASE_SHIFT = "NONE";
+   defparam DCM_INST.DESKEW_ADJUST = "SYSTEM_SYNCHRONOUS";
+   defparam DCM_INST.DFS_FREQUENCY_MODE = "LOW";
+   defparam DCM_INST.DLL_FREQUENCY_MODE = "LOW";
+   defparam DCM_INST.DUTY_CYCLE_CORRECTION = "TRUE";
+   defparam DCM_INST.FACTORY_JF = 16'h8080;
+   defparam DCM_INST.PHASE_SHIFT = 0;
+   defparam DCM_INST.STARTUP_WAIT = "FALSE";
+
+   BUFG dspclk_BUFG (.I(dcm_out), .O(dsp_clk));
+   BUFG wbclk_BUFG (.I(clk_div), .O(wb_clk));
+
+   // I2C -- Don't use external transistors for open drain, the FPGA implements this
+   IOBUF scl_pin(.O(scl_pad_i), .IO(SCL), .I(scl_pad_o), .T(scl_pad_oen_o));
+   IOBUF sda_pin(.O(sda_pad_i), .IO(SDA), .I(sda_pad_o), .T(sda_pad_oen_o));
+
+   // LEDs are active low outputs
+   wire [4:0] leds_int;
+   assign     leds = ~leds_int;  // drive low to turn on leds
+   
+   // SPI
+   wire 	miso, mosi, sclk_int;
+   assign 	{sclk,sdi} = (~sen_clk | ~sen_dac) ? {sclk_int,mosi} : 2'b0;
+   assign 	{sclk_tx_db,sdi_tx_db} = ~sen_tx_db ? {sclk_int,mosi} : 2'b0;
+   assign 	{sclk_tx_dac,sdi_tx_dac} = ~sen_tx_dac ? {sclk_int,mosi} : 2'b0;
+   assign 	{sclk_tx_adc,sdi_tx_adc} = ~sen_tx_adc ? {sclk_int,mosi} : 2'b0;
+   assign 	{sclk_rx_db,sdi_rx_db} = ~sen_rx_db ? {sclk_int,mosi} : 2'b0;
+   assign 	{sclk_rx_dac,sdi_rx_dac} = ~sen_rx_dac ? {sclk_int,mosi} : 2'b0;
+   assign 	{sclk_rx_adc,sdi_rx_adc} = ~sen_rx_adc ? {sclk_int,mosi} : 2'b0;
+   
+   assign 	miso = (~sen_clk & sdo) | (~sen_dac & sdo) | 
+		(~sen_tx_db & sdo_tx_db) | (~sen_tx_adc & sdo_tx_adc) |
+		(~sen_rx_db & sdo_rx_db) | (~sen_rx_adc & sdo_rx_adc);
+
+   wire 	GMII_TX_EN_unreg, GMII_TX_ER_unreg;
+   wire [7:0] 	GMII_TXD_unreg;
+   wire 	GMII_GTX_CLK_int;
+   
+   always @(posedge GMII_GTX_CLK_int)
+     begin
+	GMII_TX_EN <= GMII_TX_EN_unreg;
+	GMII_TX_ER <= GMII_TX_ER_unreg;
+	GMII_TXD <= GMII_TXD_unreg;
+     end
+
+   OFDDRRSE OFDDRRSE_gmii_inst 
+     (.Q(GMII_GTX_CLK),      // Data output (connect directly to top-level port)
+      .C0(GMII_GTX_CLK_int),    // 0 degree clock input
+      .C1(~GMII_GTX_CLK_int),    // 180 degree clock input
+      .CE(1),    // Clock enable input
+      .D0(0),    // Posedge data input
+      .D1(1),    // Negedge data input
+      .R(0),      // Synchronous reset input
+      .S(0)       // Synchronous preset input
+      );
+   
+   wire ser_tklsb_unreg, ser_tkmsb_unreg;
+   wire [15:0] ser_t_unreg;
+   wire        ser_tx_clk_int;
+   
+   always @(posedge ser_tx_clk_int)
+     begin
+	ser_tklsb <= ser_tklsb_unreg;
+	ser_tkmsb <= ser_tkmsb_unreg;
+	ser_t <= ser_t_unreg;
+     end
+
+   assign ser_tx_clk = clk_fpga;
+
+   reg [15:0] ser_r_int;
+   reg 	      ser_rklsb_int, ser_rkmsb_int;
+
+   always @(posedge ser_rx_clk)
+     begin
+	ser_r_int <= ser_r;
+	ser_rklsb_int <= ser_rklsb;
+	ser_rkmsb_int <= ser_rkmsb;
+     end
+   
+   /*
+   OFDDRRSE OFDDRRSE_serdes_inst 
+     (.Q(ser_tx_clk),      // Data output (connect directly to top-level port)
+      .C0(ser_tx_clk_int),    // 0 degree clock input
+      .C1(~ser_tx_clk_int),    // 180 degree clock input
+      .CE(1),    // Clock enable input
+      .D0(0),    // Posedge data input
+      .D1(1),    // Negedge data input
+      .R(0),      // Synchronous reset input
+      .S(0)       // Synchronous preset input
+      );
+   */
+   u2_core 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_int),
+		     .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_unreg[7:0]),
+		     .GMII_TX_EN	(GMII_TX_EN_unreg),
+		     .GMII_TX_ER	(GMII_TX_ER_unreg),
+		     .GMII_GTX_CLK	(GMII_GTX_CLK_int),
+		     .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_int),
+		     .ser_t		(ser_t_unreg[15:0]),
+		     .ser_tklsb		(ser_tklsb_unreg),
+		     .ser_tkmsb		(ser_tkmsb_unreg),
+		     .ser_rx_clk	(ser_rx_clk),
+		     .ser_r		(ser_r_int[15:0]),
+		     .ser_rklsb		(ser_rklsb_int),
+		     .ser_rkmsb		(ser_rkmsb_int),
+		     .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_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_int),
+		     .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_rx_i         (),
+		     .uart_baud_o       (),
+		     .sim_mode          (1'b0),
+		     .clock_divider     (2)
+		     );
+   
+endmodule // u2plus