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diff --git a/fpga/usrp2/top/B100/B100.v b/fpga/usrp2/top/B100/B100.v
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--- a/fpga/usrp2/top/B100/B100.v
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-//
-// Copyright 2011-2012 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 B100
- (input CLK_FPGA_P, input CLK_FPGA_N, // Diff
- output [2:0] debug_led, output [31:0] debug, output [1:0] debug_clk,
-
- // GPIF
- inout [15:0] GPIF_D, input [3:0] GPIF_CTL, output GPIF_SLOE,
- output [1:0] GPIF_ADR, output GPIF_SLWR, output GPIF_SLRD, output GPIF_PKTEND,
- 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,
- input ext_reset
- );
-
- assign reset_codec = 1; // Believed to be active low
-
- // /////////////////////////////////////////////////////////////////////////
- // Clocking
- wire clk_fpga, clk_fpga_in, reset;
- wire gpif_clk = IFCLK;
- wire gpif_rst;
-
- 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) | (~ext_reset)), .reset_out(reset));
- reset_sync reset_sync_gpif(.clk(gpif_clk), .reset_in((~reset_n) | (~ext_reset)), .reset_out(gpif_rst));
-
- // /////////////////////////////////////////////////////////////////////////
- // 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
-
- wire rxsync_0, rxsync_1;
- 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 Core
- wire [35:0] rx_data, tx_data, ctrl_data, resp_data;
- wire rx_src_rdy, rx_dst_rdy, tx_src_rdy, tx_dst_rdy, resp_src_rdy, resp_dst_rdy, ctrl_src_rdy, ctrl_dst_rdy;
- wire dsp_rx_run, dsp_tx_run;
- wire [7:0] sen8;
- assign {SEN_CODEC,SEN_TX_DB,SEN_RX_DB} = sen8[2:0];
- wire [31:0] core_debug;
-
- assign debug_led = {dsp_tx_run, dsp_rx_run, cgen_st_ld};
- wire cgen_sync;
- assign { cgen_sync_b, cgen_ref_sel } = {~cgen_sync, 1'b1};
-
- u1plus_core #(
-`ifdef NUM_RX_DSP
- .NUM_RX_DSPS(`NUM_RX_DSP),
-`else
- .NUM_RX_DSPS(1),
-`endif
- .DSP_RX_XTRA_FIFOSIZE(11),
- .DSP_TX_XTRA_FIFOSIZE(12),
- .USE_PACKET_PADDER(1)
- ) core(
- .clk(clk_fpga), .reset(reset),
- .debug(core_debug), .debug_clk(debug_clk),
-
- .rx_data(rx_data), .rx_src_rdy(rx_src_rdy), .rx_dst_rdy(rx_dst_rdy),
- .tx_data(tx_data), .tx_src_rdy(tx_src_rdy), .tx_dst_rdy(tx_dst_rdy),
- .ctrl_data(ctrl_data), .ctrl_src_rdy(ctrl_src_rdy), .ctrl_dst_rdy(ctrl_dst_rdy),
- .resp_data(resp_data), .resp_src_rdy(resp_src_rdy), .resp_dst_rdy(resp_dst_rdy),
-
- .dsp_rx_run(dsp_rx_run), .dsp_tx_run(dsp_tx_run),
- .clock_sync(cgen_sync),
-
- .db_sda(SDA_FPGA), .db_scl(SCL_FPGA),
- .sclk(sclk), .sen(sen8), .mosi(mosi), .miso(miso),
- .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) );
-
- // /////////////////////////////////////////////////////////////////////////
- // Interface from host to/from GPIF
- wire [31:0] gpif_debug;
- slave_fifo slave_fifo (.gpif_clk(gpif_clk), .gpif_rst(gpif_rst), .gpif_d(GPIF_D),
- .gpif_ctl(GPIF_CTL), .sloe(GPIF_SLOE), .slwr(GPIF_SLWR), .slrd(GPIF_SLRD),
- .pktend(GPIF_PKTEND), .fifoadr(GPIF_ADR),
-
- .fifo_clk(clk_fpga), .fifo_rst(reset),
- .rx_data(rx_data), .rx_src_rdy(rx_src_rdy), .rx_dst_rdy(rx_dst_rdy),
- .tx_data(tx_data), .tx_src_rdy(tx_src_rdy), .tx_dst_rdy(tx_dst_rdy),
- .ctrl_data(ctrl_data), .ctrl_src_rdy(ctrl_src_rdy), .ctrl_dst_rdy(ctrl_dst_rdy),
- .resp_data(resp_data), .resp_src_rdy(resp_src_rdy), .resp_dst_rdy(resp_dst_rdy),
-
- .debug(gpif_debug));
-
- //assign debug = gpif_debug;
- assign debug = core_debug;
-
-endmodule // B100
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