blob: 49d3641b70022bd878e68a2e847c10c1b629fbf0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
//
// Copyright 2014 Ettus Research LLC
//
module pps_generator
#(parameter CLK_FREQ=0, DUTY=25)
(input clk, input reset, output pps);
reg[31:0] count;
always @(posedge clk) begin
if (reset) begin
count <= 32'b1;
end else if (count >= CLK_FREQ) begin
count <= 32'b1;
end else begin
count <= count + 1'b1;
end
end
assign pps = (count < CLK_FREQ * DUTY / 100);
endmodule //pps_generator
|
