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-rw-r--r--fpga/usrp2/custom/power_trig_tb.v71
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diff --git a/fpga/usrp2/custom/power_trig_tb.v b/fpga/usrp2/custom/power_trig_tb.v
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+//
+// Copyright 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/>.
+//
+
+
+module power_trig_tb();
+ initial $dumpfile("power_trig_tb.vcd");
+ initial $dumpvars(0,power_trig_tb);
+
+ reg clk = 0;
+ always #10 clk <= ~clk;
+ reg rst = 1;
+ initial #100 rst <= 0;
+
+ initial
+ begin
+ set_stb <= 0;
+ #1000;
+ set_stb <= 1;
+ end
+
+ reg [31:0] sample_in;
+ reg strobe_in;
+ wire [31:0] sample_out;
+ wire strobe_out;
+ reg set_stb, run;
+
+ power_trig #(.BASE(0)) power_trig
+ (.clk(clk), .reset(rst), .enable(1),
+ .set_stb(set_stb), .set_addr(0), .set_data(32'h000B_B000),
+ .run(run),
+
+ .ddc_out_sample(sample_in), .ddc_out_strobe(strobe_in),
+ .bb_sample(sample_out), .bb_strobe(strobe_out));
+
+ initial sample_in <= 32'h0100_0300;
+
+ always @(posedge clk)
+ if(~strobe_in)
+ sample_in <= sample_in + 32'h0001_0001;
+
+ initial
+ #100000 $finish;
+
+ initial
+ begin
+ run <= 0;
+ #2000 run <= 1;
+ #30000 run <= 0;
+ end
+
+ always @(posedge clk)
+ if(rst | ~run)
+ strobe_in <= 0;
+ else
+ strobe_in <= ~strobe_in;
+
+endmodule // power_trig_tb