2021年5月5日 星期三

HBLbits_Verilog Basic_Exams/review2015 count1k

HBLbits_Verilog Basic_Exams/review2015 count1k 

Build a counter that counts from 0 to 999, inclusive, with a period of 1000 cycles. The reset input is synchronous, and should reset the counter to 0.

module top_module (
    input clk,
    input reset,
    output [9:0] q);
    always @(posedge clk) begin
        if (reset)
            q=0;
        else
            begin
                if ( q==999)
                    q=0;
                else
                    q=q+1;
            end
    end
endmodule


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