Level to Pulse

Post date: May 19, 2021 3:34:21 AM

Converts 011 sequence to a single pulse. Can also be used as switch debouncer when clocked with ~10ms/period.

module dff(input slow_clk, D, output reg Q);

    always @ (posedge slow_clk)

        Q <= D;

endmodule

module prescaler(input clk50M, output reg slow_clk);

    reg [26:0] counter;

    always @ (posedge clk50M) begin

        counter <= counter - 1;

        if (!counter) begin

            counter = 24999; // need to check this

            slow_clk = ~slow_clk

        end

    end

endmodule

module debouncer(input Sig, slow_clk, output Deb_sig);

    wire q0, q1, q2;

    dff d0(slow_clk, Sig, q0);

    dff d1(slow_clk,  q0, q1);

    dff d2(slow_clk,  q1, q2);

    assign Deb_sig = q0 & q1 & ~q2;

endmodule