呼吸灯测试文件
// --------------------------------------------------------------------
// >>>>>>>>>>>>>>>>>>>>>>>>> COPYRIGHT NOTICE <<<<<<<<<<<<<<<<<<<<<<<<<
// --------------------------------------------------------------------
// Module: Breath_led_test
//
// Author: Step
//
// Description: Testbench for Water_led
//
// Web: www.ecbcamp.com
//
// --------------------------------------------------------------------
// Code Revision History :
// --------------------------------------------------------------------
// Version: |Mod. Date: |Changes Made:
// V1.0 |2015/11/11 |Initial ver
// --------------------------------------------------------------------
`timescale 1ns / 100ps
module Breath_led_test;
parameter CLK_PERIOD = 40; //CLK_PERIOD=40ns, Frequency=25MHz
parameter CNT_NUM = 6;
reg sys_clk;
initial
sys_clk = 1'b0;
always
sys_clk = #(CLK_PERIOD/2) ~sys_clk;
reg sys_rst_n; //active low
initial
begin
sys_rst_n = 1'b0;
#100;
sys_rst_n = 1'b1;
end
wire Breath_led;
Breath_led #(.CNT_NUM(CNT_NUM))
Breath_led_uut
(
.clk_in(sys_clk),
.rst_n_in(sys_rst_n),
.Breath_led(Breath_led)
);
endmodule