自己写的计数器，希望大家提意见！
clarke 发表于: 2006-5-08 10:19 来源: DICDER -- 博客专栏
/*+FHDR--------------------------------------------------------
file name: counter4.v
Author: Clarke.Lee
E-mail: clarke.lee@163.com
--------------------------------------
Keywords: Counter
//-FHDR---------------------------------------------------------*/
module counter4(clk,
reset,
cout,
out);
input clk;
input reset;
output cout;
output [1:0] out;
wire cout;
wire [1:0] out;
reg [1:0] counter;
assign cout = ~(counter[1]|counter[0]);
assign out = counter;
always@(posedge clk or negedge reset)
if(!reset)
begin
counter <= 0;
end
else if(counter<3)
begin
counter <= (counter + 1);
end
else
begin
counter <= 0;
end
endmodule
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