30. PWM with 4-bit Resolution

How do you plan to solve it?

/*Write your code here*/
module pwm4_basic(
    input clk,
    input rst,
    input [3:0] duty,
    output reg pwm_out
);

reg [3:0] cnt;

always @(posedge clk) begin
    if (rst) begin
        cnt <= 0;
        pwm_out <= 0;
    end

    else if (cnt < duty) begin
        pwm_out <= 1;
        cnt <= cnt + 1;
    end

    else begin
        pwm_out <= 0;
        cnt <= cnt + 1;
    end



end



endmodule