verilog设计数字时钟
时间: 2023-05-24 14:06:18 浏览: 79
以下是一个简单的 Verilog 数字时钟设计代码:
```
module digital_clock(clk, reset, sec_out, min_out, hr_out);
input clk, reset;
output reg[6:0] sec_out, min_out, hr_out;
reg[6:0] sec_count, min_count, hr_count;
always @(posedge clk or negedge reset)
begin
if (~reset)
begin
sec_count <= 0;
min_count <= 0;
hr_count <= 0;
end
else
begin
sec_count <= sec_count + 1;
if (sec_count == 60)
begin
sec_count <= 0;
min_count <= min_count + 1;
if (min_count == 60)
begin
min_count <= 0;
hr_count <= hr_count + 1;
if (hr_count == 24)
begin
hr_count <= 0;
end
end
end
end
end
assign sec_out = sec_count;
assign min_out = min_count;
assign hr_out = hr_count;
endmodule
```
该代码使用三个寄存器来计算秒、分和小时,并在时钟信号上升沿时自增计数器。该代码还包括一个复位信号,以便在需要时将计数器重置为零。最后,它将时、分和秒的值传递给输出端口。