3 // USRP - Universal Software Radio Peripheral
5 // Copyright (C) 2007 Corgan Enterprises LLC
7 // This program is free software; you can redistribute it and/or modify
8 // it under the terms of the GNU General Public License as published by
9 // the Free Software Foundation; either version 2 of the License, or
10 // (at your option) any later version.
12 // This program is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 51 Franklin Street, Boston, MA 02110-1301 USA
24 `include "../lib/radar.v"
52 // Configuration shadow registers
56 (.clk_i(clk),.saddr_i(saddr),.sdata_i(sdata),.s_strobe_i(s_strobe),
57 .tx_strobe_o(tx_strobe),.tx_dac_i_o(tx_dac_i),.tx_dac_q_o(tx_dac_q),
58 .rx_adc_i_i(rx_adc_i),.rx_adc_q_i(rx_adc_q),
59 .rx_strobe_o(fifo_strobe),.rx_ech_i_o(fifo_i),.rx_ech_q_o(fifo_q));
61 // Start up initialization
87 //$monitor($time, " clk=%b rst=%b", clk, uut.reset);
89 $dumpfile("radar_tb.vcd");
90 $dumpvars(0, radar_tb);
94 task write_cfg_register;
106 endtask // write_cfg_register
108 // Application reset line
113 mode = reset ? (mode | `bmFR_RADAR_MODE_RESET) : (mode & ~`bmFR_RADAR_MODE_RESET);
114 write_cfg_register(`FR_RADAR_MODE, mode);
123 write_cfg_register(`FR_RADAR_TON, t_on);
127 // Transmitter switching time
132 write_cfg_register(`FR_RADAR_TSW, t_sw);
136 // Receiver look time
141 write_cfg_register(`FR_RADAR_TLOOK, t_look);
145 // Inter-pulse idle time
150 write_cfg_register(`FR_RADAR_TIDLE, t_idle);
159 write_cfg_register(`FR_RADAR_AMPL, ampl);
163 // Chirp start frequency
168 write_cfg_register(`FR_RADAR_FSTART, fstart);
170 endtask // set_fstart
172 // Chirp frequency increment
177 write_cfg_register(`FR_RADAR_FINCR, fincr);
181 // Chirp frequency increment
186 write_cfg_register(`FR_RADAR_ATRDEL, atrdel);
190 // Test transmitter functionality
195 #20 set_ton(320-1); // 5us on time
196 #20 set_tsw(26-1); // 406ns switching time
197 #20 set_tlook(640-1); // 10us look time
198 #20 set_tidle(2854-1); // 60us pulse period
200 #20 set_ampl(16'd9946);
201 #20 set_fstart(32'h80000000); // -16 to 16 MHz
202 #20 set_fincr (32'h0199999A);
203 #20 set_atrdel(32'h00400046); // 64 TX clks, 70 RX clks