标题: ModelSim仿真源代码 [打印本页]
作者: 1589167 时间: 2018-3-20 15:23
标题: ModelSim仿真源代码
Counter的源代码：
module lin(clk,rst,in1,in2,cin,count,sum);
input [7:0]in1,in2;
input clk,rst,cin;
output [7:0]sum;
output count;
reg [7:0]sum;
reg count;
always @(posedge clk)
begin
if(!rst)
begin
count<=0;
sum<=8'b0;
end
else
sum<=in1+in2+cin;
if(sum>=8'b11111111)
count<=1;
else
count<=0;
end
endmodule
Tcounter的源代码：
`timescale 10ns/1ns
module tcounter;
reg clk1, rst1,cin1;
reg[7:0] din1,din2;
wire count1;
wire[7:0] sum1;
lin adder ( .cin (cin1),
.in1 (din1),
.in2 (din2),
.clk (clk1),
.rst (rst1),
.sum (sum1),
.count (count1)
);
initial // Clock generator
begin
clk1 = 0;
forever #10 clk1 = ~clk1;
end
initial
begin
#0 rst1 = 1'b0;
#0.5 rst1 = 1'b1;
#22 rst1 = 1'b0;
end
always @ ( negedge clk1 )
begin
din1 = $random%256;
din2 = $random%256;
cin1 = $random%2;
end
endmodule
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