mirror of
https://github.com/KevinMidboe/linguist.git
synced 2025-10-29 17:50:22 +00:00
71 lines
1.9 KiB
Verilog
Executable File
71 lines
1.9 KiB
Verilog
Executable File
////////////////////////////////////////////////////////////////////////////////
|
|
// Original Author: Schuyler Eldridge
|
|
// Contact Point: Schuyler Eldridge (schuyler.eldridge@gmail.com)
|
|
// button_debounce.v
|
|
// Created: 4.5.2012
|
|
// Modified: 4.5.2012
|
|
//
|
|
// Testbench for button_debounce.v.
|
|
//
|
|
// Copyright (C) 2012 Schuyler Eldridge, Boston University
|
|
//
|
|
// 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 3 of the License.
|
|
//
|
|
// 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, see <http://www.gnu.org/licenses/>.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
`timescale 1ns / 1ps
|
|
module t_button_debounce();
|
|
|
|
parameter
|
|
CLK_FREQUENCY = 66000000,
|
|
DEBOUNCE_HZ = 2;
|
|
|
|
reg clk, reset_n, button;
|
|
wire debounce;
|
|
|
|
button_debounce
|
|
#(
|
|
.CLK_FREQUENCY(CLK_FREQUENCY),
|
|
.DEBOUNCE_HZ(DEBOUNCE_HZ)
|
|
)
|
|
button_debounce
|
|
(
|
|
.clk(clk),
|
|
.reset_n(reset_n),
|
|
.button(button),
|
|
.debounce(debounce)
|
|
);
|
|
|
|
initial begin
|
|
clk = 1'bx; reset_n = 1'bx; button = 1'bx;
|
|
#10 reset_n = 1;
|
|
#10 reset_n = 0; clk = 0;
|
|
#10 reset_n = 1;
|
|
#10 button = 0;
|
|
end
|
|
|
|
always
|
|
#5 clk = ~clk;
|
|
|
|
always begin
|
|
#100 button = ~button;
|
|
#0.1 button = ~button;
|
|
#0.1 button = ~button;
|
|
#0.1 button = ~button;
|
|
#0.1 button = ~button;
|
|
#0.1 button = ~button;
|
|
#0.1 button = ~button;
|
|
#0.1 button = ~button;
|
|
#0.1 button = ~button;
|
|
end
|
|
|
|
endmodule
|