blob: a27dda8d3dc08cc82a4e12fdf466b69b165a73a3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
// -*- verilog -*-
//
// USRP - Universal Software Radio Peripheral
//
// Copyright (C) 2003 Matt Ettus
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Boston, MA 02110-1301 USA
//
module strobe_gen
( input clock,
input reset,
input enable,
input [7:0] rate,
input strobe_in,
output wire strobe );
// parameter width = 8;
reg [7:0] counter;
assign strobe = ~|counter && enable && strobe_in;
always @(posedge clock)
if(reset | ~enable)
counter <= #1 8'd0;
else if(strobe_in)
if(counter == 0)
counter <= #1 rate;
else
counter <= #1 counter - 8'd1;
endmodule // strobe_gen
|
