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Debouncer_FSM_TB.v
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Debouncer_FSM_TB.v
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`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company:
// Engineer:
//
// Create Date: 06/09/2021 02:53:34 AM
// Design Name:
// Module Name: db_fsm_TB
// Project Name:
// Target Devices:
// Tool Versions:
// Description:
//
// Dependencies:
//
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
//
//////////////////////////////////////////////////////////////////////////////////
module db_fsm_TB();
reg clk, reset, sw;
wire db, m_tick;
debouncer db0(clk, reset, sw, db, m_tick);
// clk gen ; period = 20 ns
initial
clk = 0;
always
#10 clk = ~ clk;
parameter N = 16;
parameter M = 19;
initial
begin
reset = 0; sw = 1'b0;
@(negedge clk) reset = 1;
@(negedge clk) reset = 0;
repeat(2**N) @(negedge clk); sw = 1'b1; // 1.3 ms
repeat(2**N) @(negedge clk); sw = 1'b0;
repeat(2**N) @(negedge clk); sw = 1'b1;
repeat(2**N) @(negedge clk); sw = 1'b0;
repeat(2**N) @(negedge clk); sw = 1'b1;
repeat(2**M) @(negedge clk); sw = 1'b1;
repeat(2**M) @(negedge clk); sw = 1'b1;
repeat(2**M) @(negedge clk); $stop;
end
endmodule