module traffic_light( input clk, output reg n_s_red, output reg n_s_yellow, output reg n_s_green, output reg e_w_red, output reg e_w_yellow, output reg e_w_green); reg [2:0] state; // 定义状态 parameter S_NS_RED_EW_GREEN = 3'b000; parameter S_NS_YELLOW_EW_RED = 3'b001; parameter S_NS_GREEN_EW_RED = 3'b010; parameter S_NS_RED_EW_YELLOW = 3'b011; always @(posedge clk) begin case (state) S_NS_RED_EW_GREEN: begin n_s_red <= 1; n_s_yellow <= 0; n_s_green <= 0; e_w_red <= 0; e_w_yellow <= 1; e_w_green <= 0; #3 state <= S_NS_YELLOW_EW_RED; end S_NS_YELLOW_EW_RED: begin n_s_red <= 1; n_s_yellow <= 1; n_s_green <= 0; e_w_red <= 0; e_w_yellow <= 0; e_w_green <= 0; #1 state <= S_NS_GREEN_EW_RED; end S_NS_GREEN_EW_RED: begin n_s_red <= 0; n_s_yellow <= 0; n_s_green <= 1; e_w_red <= 1; e_w_yellow <= 0; e_w_green <= 0; #3 state <= S_NS_RED_EW_YELLOW; end S_NS_RED_EW_YELLOW: begin n_s_red <= 1; n_s_yellow <= 0; n_s_green <= 0; e_w_red <= 1; e_w_yellow <= 1; e_w_green <= 0; #1 state <= S_NS_RED_EW_GREEN; end endcase end // 初始状态 initial begin state <= S_NS_RED_EW_GREEN; endendmodule，为这段代码用veirlog语言编写仿真代码，在vivado上运行

以下是Traffic Light的仿真代码，可以在Vivado上运行：

module traffic_light_tb;

reg clk;
wire n_s_red, n_s_yellow, n_s_green, e_w_red, e_w_yellow, e_w_green;

traffic_light uut(
    .clk(clk),
    .n_s_red(n_s_red),
    .n_s_yellow(n_s_yellow),
    .n_s_green(n_s_green),
    .e_w_red(e_w_red),
    .e_w_yellow(e_w_yellow),
    .e_w_green(e_w_green)
);

initial begin
    clk = 0;
    #5;
    repeat(20) begin
        clk = ~clk;
        #5;
    end
    $finish;
end

endmodule

这里使用了一个简单的测试平台来测试Traffic Light模块。模块实例化为 `uut`，并将其6个输出连接到测试平台的6个wire。在 initial 块中，时钟信号 `clk` 被初始化为 0，并在每个时钟上升沿时翻转。整个仿真过程持续20个时钟周期，并在最后调用 $finish 命令结束仿真。

相关问题

module traffic_light( input clk, output reg n_s_red, output reg n_s_yellow, output reg n_s_green, output reg e_w_red, output reg e_w_yellow, output reg e_w_green); reg [2:0] state; // 定义状态 parameter S_NS_RED_EW_GREEN = 3'b000; parameter S_NS_YELLOW_EW_RED = 3'b001; parameter S_NS_GREEN_EW_RED = 3'b010; parameter S_NS_RED_EW_YELLOW = 3'b011; always @(posedge clk) begin case (state) S_NS_RED_EW_GREEN: begin n_s_red <= 1; n_s_yellow <= 0; n_s_green <= 0; e_w_red <= 0; e_w_yellow <= 1; e_w_green <= 0; #3 state <= S_NS_YELLOW_EW_RED; end S_NS_YELLOW_EW_RED: begin n_s_red <= 1; n_s_yellow <= 1; n_s_green <= 0; e_w_red <= 0; e_w_yellow <= 0; e_w_green <= 0; #1 state <= S_NS_GREEN_EW_RED; end S_NS_GREEN_EW_RED: begin n_s_red <= 0; n_s_yellow <= 0; n_s_green <= 1; e_w_red <= 1; e_w_yellow <= 0; e_w_green <= 0; #3 state <= S_NS_RED_EW_YELLOW; end S_NS_RED_EW_YELLOW: begin n_s_red <= 1; n_s_yellow <= 0; n_s_green <= 0; e_w_red <= 1; e_w_yellow <= 1; e_w_green <= 0; #1 state <= S_NS_RED_EW_GREEN; end endcase end // 初始状态 initial begin state <= S_NS_RED_EW_GREEN; endendmodule，为这段代码编写仿真代码，在vivado上运行

好的，以下是一个简单的Vivado仿真测试程序，用于验证您的代码逻辑是否正确：

`timescale 1ns / 1ns

module testbench;

  // 定义输入和输出端口
  reg clk;
  reg n_s_red, n_s_yellow, n_s_green, e_w_red, e_w_yellow, e_w_green;

  // 实例化被测试的模块
  traffic_light dut(
    .clk(clk),
    .n_s_red(n_s_red),
    .n_s_yellow(n_s_yellow),
    .n_s_green(n_s_green),
    .e_w_red(e_w_red),
    .e_w_yellow(e_w_yellow),
    .e_w_green(e_w_green)
  );

  // 定义仿真时钟
  always #5 clk = ~clk;

  // 测试交通灯状态转换
  initial begin
    clk = 0;
    #5; // 等待5个时钟周期
    if (n_s_red !== 1 || n_s_yellow !== 0 || n_s_green !== 0 || e_w_red !== 0 || e_w_yellow !== 1 || e_w_green !== 0) $display("Test failed!"); // 检查状态是否正确
    else $display("NS_RED_EW_GREEN passed!"); // 输出测试通过信息
    #3; // 等待3个时钟周期
    if (n_s_red !== 1 || n_s_yellow !== 1 || n_s_green !== 0 || e_w_red !== 0 || e_w_yellow !== 0 || e_w_green !== 0) $display("Test failed!"); // 检查状态是否正确
    else $display("NS_YELLOW_EW_RED passed!"); // 输出测试通过信息
    #1; // 等待1个时钟周期
    if (n_s_red !== 0 || n_s_yellow !== 0 || n_s_green !== 1 || e_w_red !== 1 || e_w_yellow !== 0 || e_w_green !== 0) $display("Test failed!"); // 检查状态是否正确
    else $display("NS_GREEN_EW_RED passed!"); // 输出测试通过信息
    #3; // 等待3个时钟周期
    if (n_s_red !== 1 || n_s_yellow !== 0 || n_s_green !== 0 || e_w_red !== 1 || e_w_yellow !== 1 || e_w_green !== 0) $display("Test failed!"); // 检查状态是否正确
    else $display("NS_RED_EW_YELLOW passed!"); // 输出测试通过信息
    $finish; // 终止仿真
  end

endmodule

请将上述代码保存为 `.v` 文件，并在 Vivado 中创建仿真文件。在仿真文件中添加该测试程序，并运行仿真即可。

module traffic_light( input clk, output reg n_s_red, //南北方向三个灯 output reg n_s_yellow, output reg n_s_green, output reg e_w_red, //东西方向三个灯 output reg e_w_yellow, output reg e_w_green ); reg [2:0] state; // 定义当前的状态 parameter S_NS_RED_EW_GREEN = 3'b000; // 南北红，东西绿，3s parameter S_NS_YELLOW_EW_RED = 3'b001; //南北红，东西黄,1s parameter S_NS_GREEN_EW_RED = 3'b010; //南北绿，东西红,3s parameter S_NS_RED_EW_YELLOW = 3'b011; //南北黄，东西红,1s always @(posedge clk) begin case (state) S_NS_RED_EW_GREEN: begin n_s_red <= 1; n_s_yellow <= 0; n_s_green <= 0; e_w_red <= 0; e_w_yellow <= 1; e_w_green <= 0; #3 state <= S_NS_YELLOW_EW_RED; end S_NS_YELLOW_EW_RED: begin n_s_red <= 1; n_s_yellow <= 1; n_s_green <= 0; e_w_red <= 0; e_w_yellow <= 0; e_w_green <= 0; #1 state <= S_NS_GREEN_EW_RED; end S_NS_GREEN_EW_RED: begin n_s_red <= 0; n_s_yellow <= 0; n_s_green <= 1; e_w_red <= 1; e_w_yellow <= 0; e_w_green <= 0; #3 state <= S_NS_RED_EW_YELLOW; end S_NS_RED_EW_YELLOW: begin n_s_red <= 1; n_s_yellow <= 0; n_s_green <= 0; e_w_red <= 1; e_w_yellow <= 1; e_w_green <= 0; #1 state <= S_NS_RED_EW_GREEN; end endcase end endmodule|修改代码使其只是verilog设计代码，不涉及仿真

好的，那么为了使这段代码只是 Verilog 设计代码，不涉及仿真，需要去掉仿真模块中的部分代码，同时对模块进行一定的修改。以下是修改后的代码：

module traffic_light(
    input clk, 
    output reg n_s_red, 
    output reg n_s_yellow, 
    output reg n_s_green, 
    output reg e_w_red, 
    output reg e_w_yellow, 
    output reg e_w_green
);

    reg [2:0] state; // 定义当前的状态

    parameter S_NS_RED_EW_GREEN = 3'b000; // 南北红，东西绿，3s
    parameter S_NS_YELLOW_EW_RED = 3'b001; //南北红，东西黄,1s
    parameter S_NS_GREEN_EW_RED = 3'b010; //南北绿，东西红,3s
    parameter S_NS_RED_EW_YELLOW = 3'b011; //南北黄，东西红,1s

    always @(posedge clk) begin
        case (state)
            S_NS_RED_EW_GREEN: begin
                n_s_red <= 1; 
                n_s_yellow <= 0; 
                n_s_green <= 0; 
                e_w_red <= 0; 
                e_w_yellow <= 1; 
                e_w_green <= 0; 
                state <= S_NS_YELLOW_EW_RED; 
            end 
            S_NS_YELLOW_EW_RED: begin
                n_s_red <= 1; 
                n_s_yellow <= 1; 
                n_s_green <= 0; 
                e_w_red <= 0; 
                e_w_yellow <= 0; 
                e_w_green <= 0; 
                state <= S_NS_GREEN_EW_RED; 
            end 
            S_NS_GREEN_EW_RED: begin
                n_s_red <= 0; 
                n_s_yellow <= 0; 
                n_s_green <= 1; 
                e_w_red <= 1; 
                e_w_yellow <= 0; 
                e_w_green <= 0; 
                state <= S_NS_RED_EW_YELLOW; 
            end 
            S_NS_RED_EW_YELLOW: begin
                n_s_red <= 1; 
                n_s_yellow <= 0; 
                n_s_green <= 0; 
                e_w_red <= 1; 
                e_w_yellow <= 1; 
                e_w_green <= 0; 
                state <= S_NS_RED_EW_GREEN; 
            end 
        endcase 
    end 

endmodule

这样修改后，代码就只包含了一个 Verilog 模块，其中包含了一个状态机。这个状态机控制了交通信号灯的状态，使其按照一定的时间序列循环切换。