Squashed B200 FPGA Source. Code from Josh Blum, Ian Buckley, and Matt Ettus.

1 files changed, 97 insertions, 0 deletions

diff --git a/fpga/usrp3/top/b200/catgen_tb.v b/fpga/usrp3/top/b200/catgen_tb.v
new file mode 100644
index 000000000..bc8045a64
--- /dev/null
+++ b/fpga/usrp3/top/b200/catgen_tb.v
@@ -0,0 +1,97 @@
+`timescale 1ns/1ps
+
+module catgen_tb();
+
+   wire GSR, GTS;
+   glbl glbl( );
+
+   reg 	clk    = 0;
+   reg 	reset  = 1;
+   wire ddrclk;
+   
+   always #100 clk = ~clk;
+
+   initial $dumpfile("catgen_tb.vcd");
+   initial $dumpvars(0,catgen_tb);
+
+   wire [11:0] pins;
+   wire        frame;
+   
+   reg 	       mimo;
+   reg [7:0]   count;
+   reg 	       tx_strobe;
+   
+   wire [11:0] i0 = {4'hA,count};
+   wire [11:0] q0 = {4'hB,count};
+   wire [11:0] i1 = {4'hC,count};
+   wire [11:0] q1 = {4'hD,count};
+
+   initial
+     begin
+	#1000 reset = 0;
+	BURST(4);
+	BURST(5);
+	MIMO_BURST(4);
+	MIMO_BURST(5);
+	#2000;
+	$finish;
+     end
+   
+   task BURST;
+      input [7:0] len;
+
+      begin
+	 tx_strobe <= 0;
+	 mimo <= 0;
+	 count <= 0;
+	 @(posedge clk);
+	 @(posedge clk);
+	 repeat(len)
+	   begin
+	      tx_strobe <= 1;
+	      @(posedge clk);
+	      count <= count + 1;
+	   end
+	 tx_strobe <= 0;
+	 @(posedge clk);
+	 @(posedge clk);
+	 @(posedge clk);
+      end
+   endtask // BURST
+   
+   task MIMO_BURST;
+      input [7:0] len;
+
+      begin
+	 tx_strobe <= 0;
+	 mimo <= 1;
+	 count <= 0;
+	 @(posedge clk);
+	 @(posedge clk);
+	 repeat(len)
+	   begin
+	      tx_strobe <= 1;
+	      @(posedge clk);
+	      tx_strobe <= 0;
+	      @(posedge clk);
+	      count <= count + 1;
+	   end
+	 tx_strobe <= 0;
+	 @(posedge clk);
+	 @(posedge clk);
+	 @(posedge clk);
+      end
+   endtask // BURST
+   
+   catgen_ddr_cmos catgen
+     (.data_clk(ddrclk),
+      .reset(reset),
+      .mimo(mimo),
+      .tx_frame(frame),
+      .tx_d(pins),
+      .tx_clk(clk),
+      .tx_strobe(tx_strobe),
+      .i0(i0),.q0(q0),
+      .i1(i1),.q1(q1));
+   
+endmodule // hb_chain_tb