FPGA基于VGA的交通信号灯设计_交通信号灯设计代码

前面一段时间fpga课整了个比较神奇的搭配？就交通信号灯（有上FPGA课的人应该知道这是一个比较基础的内容）配合VGA显示，弄了点东西忍不住分享一下。

总体上我这篇文章就重点讲解一下VGA显示模块和逻辑控制模块，像led和数码管模块我就不说了（也没啥东西可以说）

我先放个结果在这

话不多说先贴一段代码

module control_place(
        input clk_1s,
        input rst,
        input control_auto,
        input contrl_re,
        output reg [5:0]time_data_10,
        output reg [5:0]time_data_0,
        output reg [1:0]light_in_NS,
        output reg [1:0]light_in_WE,
        output reg ss_time
    );
    
    
    initial
    begin
    // 00是绿灯,01是黄灯 ，10是红灯
    light_in_NS = 2'b01;
    light_in_WE = 2'b01;
    time_data_10 = 0;
    time_data_0 = 5;
    ss_time = 0;
    end
    
    //设定逻辑
    always@(posedge clk_1s or negedge rst)
    begin
        
    if (!rst) begin
        light_in_NS = 2'b01;
        light_in_WE <= 2'b01;
        time_data_10 <= 0;
        time_data_0 <= 5;
        ss_time <= 0;
        end
        else begin
        
        if((time_data_0 == 1|| time_data_0 == 0)&& time_data_10 == 0) 
            if(control_auto)
                begin
                
                if(light_in_NS == 'b00)
                begin
                    light_in_NS <= 'b01;
                    light_in_WE <= 'b10;
                    time_data_10 <= 0;
                    time_data_0 = 5;
                    end
                else if(light_in_NS == 'b01)
                begin
                                light_in_NS <= 'b10;
                                light_in_WE <= 'b00;
                                time_data_10 <= 2;
                                time_data_0 <= 5;
                                ss_time = 0;
                                end
                else if(light_in_WE == 'b00)
                begin
                         light_in_NS <= 'b10;
                         light_in_WE <= 'b01;
                         time_data_10 <= 0;
                         time_data_0 = 5;
                         end
                 else if(light_in_WE == 'b01)
                    begin
                          light_in_NS <= 'b00;
                          light_in_WE <= 'b10;
                          time_data_10 <= 2;
                          time_data_0 <= 5;
                          ss_time = 0;
                          end 
                  end
           else 
                begin
                if(contrl_re)
                    begin
                    if(light_in_NS == 'b00 || light_in_WE == 'b01)
                        begin
                        light_in_NS <= 'b00;
                        light_in_WE <= 'b10;
                        end
                    else
                        begin
                        light_in_NS <= 'b10;
                        light_in_WE <= 'b01;
                        time_data_0 = 5;
                        time_data_10 = 0;
                        end
                    end
                else
                    begin
                    if(light_in_WE == 'b00 || light_in_NS == 'b01)
                        begin
                        light_in_WE <= 'b00;
                        light_in_NS <= 'b10;
                        end
                    else
                        begin
                        light_in_WE <= 'b10;
                        light_in_NS <= 'b01;
                        time_data_0 = 5;
                        time_data_10 = 0;
                        end
                    end
 
 
                end
 
 
        else 
            if(!control_auto)
                begin
                time_data_10 = 0;
                if(time_data_0 >= 5)
                    time_data_0 = 5;
                end
            if(time_data_0 == 0)
                begin
                if(time_data_10 != 0)
                    time_data_10 = time_data_10 - 1;
                    time_data_0 = 9;
                    end
                else if(time_data_0 == 5 &