diff options
Diffstat (limited to 'fpga/usrp1/toplevel/mrfm/mrfm.v')
| -rw-r--r-- | fpga/usrp1/toplevel/mrfm/mrfm.v | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/fpga/usrp1/toplevel/mrfm/mrfm.v b/fpga/usrp1/toplevel/mrfm/mrfm.v new file mode 100644 index 000000000..7a0e38059 --- /dev/null +++ b/fpga/usrp1/toplevel/mrfm/mrfm.v @@ -0,0 +1,199 @@ +// -*- verilog -*- +// +// USRP - Universal Software Radio Peripheral +// +// Copyright (C) 2006 Matt Ettus +// +// 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 2 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, write to the Free Software +// Foundation, Inc., 51 Franklin Street, Boston, MA 02110-1301 USA +// + +// Top level module for a full setup with DUCs and DDCs + +// Uncomment the following to include optional circuitry + +`include "mrfm.vh" +`include "../../../firmware/include/fpga_regs_common.v" +`include "../../../firmware/include/fpga_regs_standard.v" + +module mrfm +(output MYSTERY_SIGNAL, + input master_clk, + input SCLK, + input SDI, + inout SDO, + input SEN_FPGA, + + input FX2_1, + output FX2_2, + output FX2_3, + + input wire [11:0] rx_a_a, + input wire [11:0] rx_b_a, + input wire [11:0] rx_a_b, + input wire [11:0] rx_b_b, + + output wire [13:0] tx_a, + output wire [13:0] tx_b, + + output wire TXSYNC_A, + output wire TXSYNC_B, + + // USB interface + input usbclk, + input wire [2:0] usbctl, + output wire [1:0] usbrdy, + inout [15:0] usbdata, // NB Careful, inout + + // These are the general purpose i/o's that go to the daughterboard slots + inout wire [15:0] io_tx_a, + inout wire [15:0] io_tx_b, + inout wire [15:0] io_rx_a, + inout wire [15:0] io_rx_b + ); + wire [15:0] debugdata,debugctrl; + assign MYSTERY_SIGNAL = 1'b0; + + wire clk64; + + wire WR = usbctl[0]; + wire RD = usbctl[1]; + wire OE = usbctl[2]; + + wire have_space, have_pkt_rdy; + assign usbrdy[0] = have_space; + assign usbrdy[1] = have_pkt_rdy; + + wire tx_underrun, rx_overrun; + wire clear_status = FX2_1; + assign FX2_2 = rx_overrun; + assign FX2_3 = tx_underrun; + + wire [15:0] usbdata_out; + + wire [3:0] dac0mux,dac1mux,dac2mux,dac3mux; + + wire tx_realsignals; + wire [3:0] rx_numchan; + + wire [15:0] tx_debugbus, rx_debugbus; + + wire enable_tx, enable_rx; + wire tx_dsp_reset, rx_dsp_reset, tx_bus_reset, rx_bus_reset; + wire [7:0] settings; + + // Tri-state bus macro + bustri bustri( .data(usbdata_out),.enabledt(OE),.tridata(usbdata) ); + + assign clk64 = master_clk; + + wire [15:0] ch0tx,ch1tx,ch2tx,ch3tx; + wire [15:0] ch0rx,ch1rx,ch2rx,ch3rx,ch4rx,ch5rx,ch6rx,ch7rx; + + wire serial_strobe; + wire [6:0] serial_addr; + wire [31:0] serial_data; + + ///////////////////////////////////////////////////////////////////////////////////////////////////// + + setting_reg #(`FR_TX_MUX) + sr_txmux(.clock(clk64),.reset(tx_dsp_reset),.strobe(serial_strobe),.addr(serial_addr),.in(serial_data), + .out({dac3mux,dac2mux,dac1mux,dac0mux,tx_realsignals,tx_numchan})); + + ////////////////////////////////////////////////////////////////////////////////////////////////////// + // Signal Processing Chain + + reg [15:0] adc0; + wire [15:0] dac0; + wire [15:0] i,q,ip,qp; + wire strobe_out; + wire sync_out; + + always @(posedge clk64) + adc0 <= #1 {rx_a_a[11],rx_a_a[11:0],3'b0}; + + wire [15:0] adc0_corr; + rx_dcoffset #(0)rx_dcoffset0(.clock(clk64),.enable(1'b1),.reset(reset),.adc_in(adc0),.adc_out(adc0_corr), + .serial_addr(7'd0),.serial_data(32'd0),.serial_strobe(1'b0)); + + //wire [63:0] filt_debug = 64'd0; + + mrfm_proc mrfm_proc(.clock(clk64),.reset(rx_dsp_reset),.enable(enable_rx), + .serial_addr(serial_addr),.serial_data(serial_data),.serial_strobe(serial_strobe), + .signal_in(adc0_corr),.signal_out(dac0),.sync_out(sync_out), + .i(i),.q(q),.ip(ip),.qp(qp),.strobe_out(strobe_out), + .debugbus( /* filt_debug */ )); + + wire txsync = 1'b0; + assign TXSYNC_A = txsync; + assign TXSYNC_B = txsync; + + assign tx_a = dac0[15:2]; + + ////////////////////////////////////////////////////////////////////////////////////////////////// + // Data Collection on RX Buffer + + assign rx_numchan[0] = 1'b0; + setting_reg #(`FR_RX_MUX) sr_rxmux(.clock(clk64),.reset(rx_dsp_reset),.strobe(serial_strobe),.addr(serial_addr), + .in(serial_data),.out(rx_numchan[3:1])); + + rx_buffer rx_buffer + ( .usbclk(usbclk),.bus_reset(rx_bus_reset),.reset(rx_dsp_reset), + .usbdata(usbdata_out),.RD(RD),.have_pkt_rdy(have_pkt_rdy),.rx_overrun(rx_overrun), + .channels(rx_numchan), + .ch_0(i),.ch_1(q), + .ch_2(ip),.ch_3(qp), + .ch_4(16'd0),.ch_5(16'd0), + .ch_6(16'd0),.ch_7(16'd0), + .rxclk(clk64),.rxstrobe(strobe_out), + .clear_status(clear_status), + .serial_addr(serial_addr),.serial_data(serial_data),.serial_strobe(serial_strobe), + .debugbus(rx_debugbus) ); + + ////////////////////////////////////////////////////////////////////////////// + // Control Functions + + wire [31:0] capabilities = 32'd2; + + serial_io serial_io + ( .master_clk(clk64),.serial_clock(SCLK),.serial_data_in(SDI), + .enable(SEN_FPGA),.reset(1'b0),.serial_data_out(SDO), + .serial_addr(serial_addr),.serial_data(serial_data),.serial_strobe(serial_strobe), + .readback_0({io_rx_a,io_tx_a}),.readback_1({io_rx_b,io_tx_b}),.readback_2(capabilities),.readback_3(32'hf0f0931a) ); + + wire [15:0] reg_0,reg_1,reg_2,reg_3; + master_control master_control + ( .master_clk(clk64),.usbclk(usbclk), + .serial_addr(serial_addr),.serial_data(serial_data),.serial_strobe(serial_strobe), + .tx_bus_reset(tx_bus_reset),.rx_bus_reset(rx_bus_reset), + .tx_dsp_reset(tx_dsp_reset),.rx_dsp_reset(rx_dsp_reset), + .enable_tx(enable_tx),.enable_rx(enable_rx), + .interp_rate(interp_rate),.decim_rate(decim_rate), + .tx_sample_strobe(tx_sample_strobe),.strobe_interp(strobe_interp), + .rx_sample_strobe(rx_sample_strobe),.strobe_decim(strobe_decim), + .tx_empty(tx_empty), + .debug_0({15'd0,sync_out}), //filt_debug[63:48]), + .debug_1({15'd0,sync_out}), //filt_debug[47:32]), + .debug_2({15'd0,sync_out}), //filt_debug[31:16]), + .debug_3({15'd0,sync_out}), //filt_debug[15:0]), + .reg_0(reg_0),.reg_1(reg_1),.reg_2(reg_2),.reg_3(reg_3) ); + + io_pins io_pins + (.io_0(io_tx_a),.io_1(io_rx_a),.io_2(io_tx_b),.io_3(io_rx_b), + .reg_0(reg_0),.reg_1(reg_1),.reg_2(reg_2),.reg_3(reg_3), + .clock(clk64),.rx_reset(rx_dsp_reset),.tx_reset(tx_dsp_reset), + .serial_addr(serial_addr),.serial_data(serial_data),.serial_strobe(serial_strobe)); + +endmodule // mrfm + |