crc_3_test.v

循环码编码器verilog实现

`timescale 1ns/1ns
module crc_3_test;
parameter size=4,
          with=3;    
reg clk,rest;
reg start;
reg[size-1:0]Din;
wire[size+with-1:0]Vout; 
always #2 clk=~clk;
initial
    begin
        rest=1;
        clk=0;
        #2 rest=0;
        #5 rest=1;
           Din=4'b0000;
        #2 start=1;
        #28 Din=4'b1000;
        #28 Din=4'b0100;
        #28 Din=4'b1100;
        
        #28 Din=4'b0010;
        #28 Din=4'b1010;
        #28 Din=4'b0110;
        #28 Din=4'b1110;
        
        #28 Din=4'b0001;
        #28 Din=4'b1001;
        #28 Din=4'b0101;
        #28 Din=4'b1101;
        
        #28 Din=4'b0011;
        #28 Din=4'b1011;
        #28 Din=4'b0111;
        #28 Din=4'b1111;
   end
        
crc_3    crc_3_testbench(rest,clk,start,Din,Vout);   
 endmodule