aboutsummaryrefslogtreecommitdiffstats
path: root/fpga/usrp3/lib/control/por_gen.v
blob: b16ceb5bfc2ae271da8ca7e3b557d157f4edf609 (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
//
// Copyright 2013 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//



module por_gen
  (input clk,
   output reset_out);

   reg 		por_rst;
   reg [7:0] 	por_counter = 8'h0;

   always @(posedge clk)
     if (por_counter != 8'h55)
       begin
          por_counter <= por_counter + 8'h1;
          por_rst <= 1'b1;
       end
     else
       por_rst <= 1'b0;

   assign reset_out = por_rst;

endmodule // por_gen