static_led/tb/static_led_tb.v

`timescale 1ns/1ns
module static_led_tb();
parameter CYCLE = 20;
reg sys_clk;
reg sys_rst_n;
wire [7: 0] seg_led;
wire [5: 0] sel_led;
always #(CYCLE / 2) sys_clk = ~sys_clk;
initial begin
    sys_clk     = 1'b0;
    sys_rst_n   = 1'b0;
    #(CYCLE);
    sys_rst_n   = 1'b1;
    #(CYCLE * 5 * 11);//1100ns
    $stop;
end


static_led  static_led_inst(
.sys_clk        (sys_clk  ),
.sys_rst_n      (sys_rst_n),
       
.seg_led        (seg_led  ),//数码管段选信号
.sel_led        (sel_led  ) //数码管位选信号
);
defparam static_led_inst.MAX = 5;//5 * 20 = 100ns
endmodule