[Commit-gnuradio] r7239 - usrp2/trunk/fpga/timing

[matt]

Author: matt
Date: 2007-12-22 15:15:15 -0700 (Sat, 22 Dec 2007)
New Revision: 7239

Added:
   usrp2/trunk/fpga/timing/pps.v
Log:
placeholder for now, will eventually handle all timing sync


Added: usrp2/trunk/fpga/timing/pps.v
===================================================================
--- usrp2/trunk/fpga/timing/pps.v                               (rev 0)
+++ usrp2/trunk/fpga/timing/pps.v       2007-12-22 22:15:15 UTC (rev 7239)
@@ -0,0 +1,26 @@
+
+
+module pps
+  (input clk, input rst,
+   input pps_in,
+   input exp_pps_in,
+   output exp_pps_out,
+   input [31:0] master_time
+   );
+
+   localparam  MAX = 14;
+   
+   reg [7:0]   counter;
+   always @(posedge clk)
+     if(rst)
+       counter <= 0;
+     else if(counter == MAX)
+       counter <= 0;
+     else
+       counter <= counter + 1;
+
+   assign      exp_pps_out = counter[0];
+   
+endmodule // pps
+
+