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// -*- verilog -*-
//
// USRP - Universal Software Radio Peripheral
//
// Copyright (C) 2007 Corgan Enterprises 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 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
//
`include "../lib/radar_config.vh"
module radar(clk_i,saddr_i,sdata_i,s_strobe_i,
tx_side_o,tx_strobe_o,tx_dac_i_o,tx_dac_q_o,
rx_adc_i_i,rx_adc_q_i,
rx_strobe_o,rx_ech_i_o,rx_ech_q_o,io_tx_ena_o);
// System interface
input clk_i; // Master clock @ 64 MHz
input [6:0] saddr_i; // Configuration bus address
input [31:0] sdata_i; // Configuration bus data
input s_strobe_i; // Configuration bus write
// Transmit subsystem
output tx_side_o; // Transmitter slot
output tx_strobe_o; // Generate an transmitter output sample
output [13:0] tx_dac_i_o; // I channel transmitter output to DAC
output [13:0] tx_dac_q_o; // Q channel transmitter output to DAC
output io_tx_ena_o; // Transmit/Receive switching
// Receive subsystem
input [15:0] rx_adc_i_i; // I channel input from ADC
input [15:0] rx_adc_q_i; // Q channel input from ADC
output rx_strobe_o; // Indicates output samples ready for Rx FIFO
output [15:0] rx_ech_i_o; // I channel processed echos to Rx FIFO
output [15:0] rx_ech_q_o; // Q channel processed echos to Rx FIFO
// Application control
wire reset; // Master application reset
wire tx_side; // Transmitter slot
wire debug_enabled; // Enable debugging mode;
wire tx_enable; // Transmitter enable
wire rx_enable; // Receiver enable
wire tx_ctrl; // Transmitter on control
wire rx_ctrl; // Receiver on control
wire [15:0] pulse_num; // Count of pulses since tx_enabled
// Configuration
wire [15:0] ampl; // Pulse amplitude
wire [31:0] fstart; // Chirp start frequency
wire [31:0] fincr; // Chirp per strobe frequency increment
radar_control controller
(.clk_i(clk_i),.saddr_i(saddr_i),.sdata_i(sdata_i),.s_strobe_i(s_strobe_i),
.reset_o(reset),.tx_side_o(tx_side_o),.dbg_o(debug_enabled),
.tx_strobe_o(tx_strobe_o),.tx_ctrl_o(tx_ctrl),.rx_ctrl_o(rx_ctrl),
.ampl_o(ampl),.fstart_o(fstart),.fincr_o(fincr),.pulse_num_o(pulse_num),
.io_tx_ena_o(io_tx_ena_o));
radar_tx transmitter
( .clk_i(clk_i),.rst_i(reset),.ena_i(tx_ctrl),.strobe_i(tx_strobe_o),
.ampl_i(ampl),.fstart_i(fstart),.fincr_i(fincr),
.tx_i_o(tx_dac_i_o),.tx_q_o(tx_dac_q_o) );
radar_rx receiver
( .clk_i(clk_i),.rst_i(reset),.ena_i(rx_ctrl),.dbg_i(debug_enabled),
.pulse_num_i(pulse_num),.rx_in_i_i(rx_adc_i_i),.rx_in_q_i(rx_adc_q_i),
.rx_strobe_o(rx_strobe_o),.rx_i_o(rx_ech_i_o),.rx_q_o(rx_ech_q_o) );
endmodule // radar
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