power_trig: test code for power trigger

1 files changed, 71 insertions, 0 deletions

diff --git a/usrp2/custom/power_trig_tb.v b/usrp2/custom/power_trig_tb.v
new file mode 100644
index 000000000..b8f3385ce
--- /dev/null
+++ b/usrp2/custom/power_trig_tb.v
@@ -0,0 +1,71 @@
+//
+// 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