生成一个使用verilog的6个led实现的交通灯并附带有每个状态的数码管倒计时以及带有蜂鸣器提醒的代码
时间: 2023-06-17 13:05:20 浏览: 51
以下是使用 Verilog 实现的 6 个 LED 的交通灯代码,包括每个状态的数码管倒计时和带有蜂鸣器提醒:
```
module traffic_light(
input clk,
output reg [5:0] led,
output reg [3:0] seg,
output reg beep
);
reg [2:0] state;
reg [25:0] count;
parameter RED = 3'b001;
parameter YELLOW = 3'b010;
parameter GREEN = 3'b100;
always @(posedge clk) begin
case(state)
RED: begin
led <= 6'b100000;
seg <= 4'b1110;
count <= 26'h0;
if(count == 25'h4C4B40) begin
beep <= 1;
end else if(count == 25'h4C4B4F) begin
beep <= 0;
state <= GREEN;
end else begin
beep <= 0;
count <= count + 1;
end
end
YELLOW: begin
led <= 6'b010000;
seg <= 4'b1101;
count <= 26'h0;
if(count == 25'h1E8480) begin
beep <= 1;
end else if(count == 25'h1E848F) begin
beep <= 0;
state <= RED;
end else begin
beep <= 0;
count <= count + 1;
end
end
GREEN: begin
led <= 6'b001000;
seg <= 4'b1011;
count <= 26'h0;
if(count == 25'h4C4B40) begin
beep <= 1;
end else if(count == 25'h4C4B4F) begin
beep <= 0;
state <= YELLOW;
end else begin
beep <= 0;
count <= count + 1;
end
end
endcase
end
initial begin
state <= RED;
end
endmodule
```
在这个代码中,我们定义了三个状态:红、黄和绿,分别用 3 位二进制数表示。我们使用带有 26 位二进制计数器来跟踪每个状态的持续时间,并在计数器达到特定值时触发蜂鸣器。同时,我们使用一个 6 位二进制数来控制交通灯的 LED 灯,以及一个 4 位二进制数来显示数码管的倒计时。