【EDA课程设计】FPGA交通信号灯的设计（含动画视频、超详细思路/步骤分析、完整代码与效果详解） |
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【EDA课程设计】FPGA交通信号灯的设计（含动画视频、超详细思路/步骤分析、完整代码与效果详解）
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目录：
🌵🌵🌵前言一、题目二、功能介绍三、视频展示四、代码展示五、设计思路六、模块结构1、首先通过分频，得到2HZ的时钟。2、第一个always实现：清零信号，通过SW[0]使南北信号灯持续为红灯、东西信号灯持续为绿灯，通过SW[1]使南北信号灯持续为绿灯，东西信号灯持续为红灯，通过SW[2]使南、北、东、西信号灯维持不变，以及定义当前状态。3、第二个always实现：定义下一状态。4、第三个always实现：倒计时数字、东西南北信号灯文字提示、东西南北红绿灯、彩灯信号等的赋值。
七、效果展示1、信号灯解释（共七项）（1）、倒计时数字显示（2）、南北东西信号灯文字指示（3）、南北红绿灯信号指示（4）、东西方向红绿灯信号指示（5）、南北方向红灯彩灯指示信号（6）、东西方向绿灯彩灯指示信号（7）、自定义按键功能
2、KEY[0]清零信号重置开始效果展示3、SW[0]置一使南北信号灯持续为红灯、东西信号灯持续为绿灯4、SW[1]置一使南北信号灯持续为绿灯、东西信号灯持续为红灯5、SW[2]置一使南、北、东、西信号灯维持不变6、南北绿灯，东西红灯时，最后5s对应的半秒一闪烁7、南北红灯，东西绿灯时，最后5s对应的半秒一闪烁8、彩灯演示9、交通信号灯总体演示（倒计时流程）
八、问题分析九、总结十：致谢❤️❤️❤️忙碌的敲代码也不要忘了浪漫鸭！
🌵🌵🌵前言
✨你好啊，我是“ 怪& ”，是一名在校大学生哦。 🌍主页链接：怪&的个人博客主页 ☀️博文主更方向为：课程学习知识、作业题解、期末备考。随着专业的深入会越来越广哦…一起期待。 ❤️一个“不想让我曾没有做好的也成为你的遗憾”的博主。 💪很高兴与你相遇，一起加油！ 一、题目FPGA交通信号灯的设计 二、功能介绍1、30秒绿灯倒计时+30秒红灯倒计时。 2、倒计时最后5秒计时每半秒（闪烁）。 3、在HEX7、HEX6显示倒计时数字。 4、可显示十字路口红绿灯的情况（东西南北）。 5、可通过KEY[0]重置信号从初始状态重新开始。 6、在HEX3、HEX2有南北方向通行/禁止通行的信号指示。 7、在HEX1、HEX0有东西方向通行/禁止通行的信号指示。 8、在南北信号灯为红灯时，在LEDR17、LEDR16、LEDR15、LEDR14、LEDR13、LEDR12有红灯的多路彩灯指示。（从左往右依次增多、从右往左依次增多、全明、全暗交替等） 9、在东西信号灯为绿灯时，在LEDG6、LEDG5、LEDG4、LEDG3、LEDG2、LEDG1有绿灯的多路彩灯指示。（从左往右依次增多、从右往左依次增多、全明、全暗交替等） 10、可通过SW[0]使南北信号灯持续为红灯，东西信号灯持续为绿灯。（应对突发情况，例如救护车通行、警察执行任务等，调整操作后可继续依次执行） 11、可通过SW[1]使南北信号灯持续为绿灯，东西信号灯持续为红灯。（应对突发情况，例如救护车通行、警察执行任务等，调整操作后可继续依次执行） 12、可通过SW[2]使南、北、东、西信号灯维持不变，调整操作后可继续依次执行。 三、视频展示（正在审核，稍后呈现） 四、代码展示 module Traffic_Light(clk,clr,EastAndWest_to_red,EastAndWest_to_green,keep,out_rg,out_num,NorthAndSouth_Red_color,EastAndWest_Green_color); (*chip_pin="Y2"*)input clk; //时钟信号 (*chip_pin="M23"*)input clr; //清零信号 (*chip_pin="AB28"*)input EastAndWest_to_red; //如果开关sw0为1，使东西走向的信号灯一直变为红 (*chip_pin="AC28"*)input EastAndWest_to_green; //如果开关sw1为1，使东西走向的信号灯一直变为红 (*chip_pin="AC27"*)input keep; //如果开关sw2为1，维持 (*chip_pin="F17,H16,G19,G21"*)output reg[3:0] out_rg; //红绿灯信号 (*chip_pin= "AD17,AE17,AG17,AH17,AF17,AG18,AA14,AA17,AB16,AA16,AB17,AB15,AA15,AC17,V21,U21,AB20,AA21,AD24,AF23,Y19,AA25,AA26,Y25,W26,Y26,W27,W28,M24,Y22,W21,W22,W25,U23,U24,G18,F22,E17,L26,L25,J22,H22"*)output reg[41:0] out_num; //2数字的计数信号+4个位置的交通指示信号 (*chip_pin="H15,G16,G15,F15,H17,J16"*)output reg[5:0] NorthAndSouth_Red_color; //南北红灯的彩灯 (*chip_pin="G22,G20,H21,E24,E25,E22"*)output reg[5:0] EastAndWest_Green_color; //东西绿灯的彩灯 reg clk_half_1s;//分频至1s reg [64:0]count; parameter s1=1,s2=2,s3=3,s4=4,s5=5,s6=6,s7=7,s8=8,s9=9,s10=10, s11=11,s12=12,s13=13,s14=14,s15=15,s16=16,s17=17,s18=18,s19=19,s20=20, s21=21,s22=22,s23=23,s24=24,s25=25,s26=26,s27=27,s28=28,s29=29,s30=30, s31=31,s32=32,s33=33,s34=34,s35=35,s36=36,s37=37,s38=38,s39=39,s40=40, s41=41,s42=42,s43=43,s44=44,s45=45,s46=46,s47=47,s48=48,s49=49,s50=50, s51=51,s52=52,s53=53,s54=54,s55=55,s56=56,s57=57,s58=58,s59=59,s60=60, s61=61,s62=62,s63=63,s64=64,s65=65,s66=66,s67=67,s68=68,s69=69,s70=70, s71=71,s72=72,s73=73,s74=74,s75=75,s76=76,s77=77,s78=78,s79=79,s80=80, s81=81,s82=82,s83=83,s84=84,s85=85,s86=86,s87=87,s88=88,s89=89,s90=90, s91=91,s92=92,s93=93,s94=94,s95=95,s96=96,s97=97,s98=98,s99=99,s100=100, s101=101,s102=102,s103=103,s104=104,s105=105,s106=106,s107=107,s108=108,s109=109,s110=110, s111=111,s112=112,s113=113,s114=114,s115=115,s116=116,s117=117,s118=118,s119=119,s120=120; localparam //---------------------------------- 作为局部常量 -------------------------------- zero =7'b0000001, //0 one =7'b1001111, //1 two =7'b0010010, //2 three =7'b0000110, //3 four =7'b1001100, //4 five =7'b0100100, //5 six =7'b0100000, //6 seven =7'b0001111, //7 eight =7'b0000000, //8 nine =7'b0000100, //9 wron =7'b0000111, //错号的左半部分 wrong =7'b0110001, //错号的右半部分 dark =7'b1111111, //七位数码管的暗 color_1 =6'b000000, //暗暗暗暗暗暗 color_2 =6'b100000, //亮暗暗暗暗暗 color_3 =6'b110000, //亮亮暗暗暗暗 color_4 =6'b111000, //亮亮亮暗暗暗 color_5 =6'b111100, //亮亮亮亮暗暗 color_6 =6'b111110, //亮亮亮亮亮暗 color_7 =6'b111111, //亮亮亮亮亮亮 color_8 =6'b000000, //暗暗暗暗暗暗 color_9 =6'b000001, //暗暗暗暗暗亮 color_10 =6'b000011, //暗暗暗暗亮亮 color_11 =6'b000111, //暗暗暗亮亮亮 color_12 =6'b001111, //暗暗亮亮亮亮 color_13 =6'b011111, //暗亮亮亮亮亮 color_14 =6'b111111; //亮亮亮亮亮亮 reg [6:0]cs,ns; //定义现态和下一时态 always @(posedge clk) //-----------------------------------------分频至0.5s--------------------------------- begin if(count=='d12499999) begin countNorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s2: begin out_num={three,zero,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s3: begin out_num={two,nine,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s4: begin out_num={two,nine,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s5: begin out_num={two,eight,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s6: begin out_num={two,eight,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s7: begin out_num={two,seven,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s8: begin out_num={two,seven,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s9: begin out_num={two,six,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s10: begin out_num={two,six,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s11: begin out_num={two,five,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s12: begin out_num={two,five,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s13: begin out_num={two,four,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s14: begin out_num={two,four,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s15: begin out_num={two,three,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s16: begin out_num={two,three,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s17: begin out_num={two,two,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s18: begin out_num={two,two,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s19: begin out_num={two,one,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s20: begin out_num={two,one,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s21: begin out_num={two,zero,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s22: begin out_num={two,zero,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s23: begin out_num={one,nine,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s24: begin out_num={one,nine,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s25: begin out_num={one,eight,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s26: begin out_num={one,eight,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s27: begin out_num={one,seven,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s28: begin out_num={one,seven,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s29: begin out_num={one,six,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s30: begin out_num={one,six,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s31: begin out_num={one,five,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s32: begin out_num={one,five,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s33: begin out_num={one,four,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s34: begin out_num={one,four,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s35: begin out_num={one,three,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s36: begin out_num={one,three,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s37: begin out_num={one,two,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s38: begin out_num={one,two,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s39: begin out_num={one,one,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s40: begin out_num={one,one,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s41: begin out_num={one,zero,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s42: begin out_num={one,zero,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s43: begin out_num={zero,nine,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s44: begin out_num={zero,nine,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s45: begin out_num={zero,eight,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s46: begin out_num={zero,eight,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s47: begin out_num={zero,seven,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s48: begin out_num={zero,seven,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s49: begin out_num={zero,six,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s50: begin out_num={zero,six,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s51: begin out_num={zero,five,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s52: begin out_num={zero,five,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0000;end s53: begin out_num={zero,four,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s54: begin out_num={zero,four,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0000;end s55: begin out_num={zero,three,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s56: begin out_num={zero,three,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0000;end s57: begin out_num={zero,two,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s58: begin out_num={zero,two,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0000;end s59: begin out_num={zero,one,six,zero,wron,wrong}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b1010;end s60: begin out_num={zero,one,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0000;end s61: begin out_num={three,zero,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0101; end s62: begin out_num={three,zero,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_2,color_2}; out_rg=4'b0101; end s63: begin out_num={two,nine,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_3,color_3}; out_rg=4'b0101; end s64: begin out_num={two,nine,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_4,color_4}; out_rg=4'b0101; end s65: begin out_num={two,eight,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_5,color_5}; out_rg=4'b0101; end s66: begin out_num={two,eight,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_6,color_6}; out_rg=4'b0101; end s67: begin out_num={two,seven,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_7,color_7}; out_rg=4'b0101; end s68: begin out_num={two,seven,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_8,color_8}; out_rg=4'b0101; end s69: begin out_num={two,six,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_9,color_9}; out_rg=4'b0101; end s70: begin out_num={two,six,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_10,color_10}; out_rg=4'b0101; end s71: begin out_num={two,five,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_11,color_11}; out_rg=4'b0101; end s72: begin out_num={two,five,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_12,color_12}; out_rg=4'b0101; end s73: begin out_num={two,four,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_13,color_13}; out_rg=4'b0101; end s74: begin out_num={two,four,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_14,color_14}; out_rg=4'b0101; end s75: begin out_num={two,three,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0101; end s76: begin out_num={two,three,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_2,color_2}; out_rg=4'b0101; end s77: begin out_num={two,two,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_3,color_3}; out_rg=4'b0101; end s78: begin out_num={two,two,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_4,color_4}; out_rg=4'b0101; end s79: begin out_num={two,one,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_5,color_5}; out_rg=4'b0101; end s80: begin out_num={two,one,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_6,color_6}; out_rg=4'b0101; end s81: begin out_num={two,zero,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_7,color_7}; out_rg=4'b0101; end s82: begin out_num={two,zero,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_8,color_8}; out_rg=4'b0101; end s83: begin out_num={one,nine,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_9,color_9}; out_rg=4'b0101; end s84: begin out_num={one,nine,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_10,color_10}; out_rg=4'b0101; end s85: begin out_num={one,eight,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_11,color_11}; out_rg=4'b0101; end s86: begin out_num={one,eight,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_12,color_12}; out_rg=4'b0101; end s87: begin out_num={one,seven,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_13,color_13}; out_rg=4'b0101; end s88: begin out_num={one,seven,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_14,color_14}; out_rg=4'b0101; end s89: begin out_num={one,six,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0101; end s90: begin out_num={one,six,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_2,color_2}; out_rg=4'b0101; end s91: begin out_num={one,five,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_3,color_3}; out_rg=4'b0101; end s92: begin out_num={one,five,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_4,color_4}; out_rg=4'b0101; end s93: begin out_num={one,four,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_5,color_5}; out_rg=4'b0101; end s94: begin out_num={one,four,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_6,color_6}; out_rg=4'b0101; end s95: begin out_num={one,three,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_7,color_7}; out_rg=4'b0101; end s96: begin out_num={one,three,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_8,color_8}; out_rg=4'b0101; end s97: begin out_num={one,two,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_9,color_9}; out_rg=4'b0101; end s98: begin out_num={one,two,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_10,color_10}; out_rg=4'b0101; end s99: begin out_num={one,one,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_11,color_11}; out_rg=4'b0101; end s100: begin out_num={one,one,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_12,color_12}; out_rg=4'b0101; end s101: begin out_num={one,zero,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_13,color_13}; out_rg=4'b0101; end s102: begin out_num={one,zero,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_14,color_14}; out_rg=4'b0101; end s103: begin out_num={zero,nine,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0101; end s104: begin out_num={zero,nine,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_2,color_2}; out_rg=4'b0101; end s105: begin out_num={zero,eight,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_3,color_3}; out_rg=4'b0101; end s106: begin out_num={zero,eight,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_4,color_4}; out_rg=4'b0101; end s107: begin out_num={zero,seven,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_5,color_5}; out_rg=4'b0101; end s108: begin out_num={zero,seven,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_6,color_6}; out_rg=4'b0101; end s109: begin out_num={zero,six,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_7,color_7}; out_rg=4'b0101; end s110: begin out_num={zero,six,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_8,color_8}; out_rg=4'b0101; end s111: begin out_num={zero,five,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_9,color_9}; out_rg=4'b0101; end s112: begin out_num={zero,five,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_10,color_10}; out_rg=4'b0000; end s113: begin out_num={zero,four,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_11,color_11}; out_rg=4'b0101; end s114: begin out_num={zero,four,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_12,color_12}; out_rg=4'b0000; end s115: begin out_num={zero,three,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_13,color_13}; out_rg=4'b0101; end s116: begin out_num={zero,three,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_14,color_14}; out_rg=4'b0000; end s117: begin out_num={zero,two,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0101; end s118: begin out_num={zero,two,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_14,color_14}; out_rg=4'b0000; end s119: begin out_num={zero,one,wron,wrong,six,zero}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0101; end s120: begin out_num={zero,one,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_14,color_14}; out_rg=4'b0000; end default: begin out_num={dark,dark,dark,dark,dark,dark}; {NorthAndSouth_Red_color,EastAndWest_Green_color}={color_1,color_1}; out_rg=4'b0000; end endcase end endmodule 五、设计思路此次FPGA交通信号灯的课程设计，总经过三个版本的更迭。
注： 南北方向为左框，东西方向为右框。 ][ 即为×，表示禁止通行。 60即为GO，表示允许通行。
上边为绿灯指示，下边为红灯指示。（相应颜色灯亮起即信号，上绿下红）
左边为红灯指示，右边为绿灯指示。（相应颜色灯亮起即信号，左红右绿）
从右往左依次为： 按下KEY[0]重置开始、SW[0]置一使南北信号灯持续为红灯、东西信号灯持续为绿灯，SW[1]置一使南北信号灯持续为绿灯，东西信号灯持续为红灯，SW[2]置一使南、北、东、西信号灯维持不变。（优先级，SW[0]>SW[1]>SW[2]）
在实验时录制的视频，在1m4s时按下清零信号，可见其立刻回到初始状态南北为绿灯，倒计时为30，重新开始，过两秒后在1m6s时又倒计时至28的状态。（表示清零信号正确执行）
在1m11s使SW[0]置一，在1m12s至1m15s期间SW[0]始终为1，且南北信号灯持续为红灯，东西信号灯持续为绿灯。倒计时数字持续为30。
在1m19s使SW[1]置一，在1m20s至1m21s期间SW[1]始终为1，且南北信号灯持续为绿灯，东西信号灯持续为红灯，倒计时数字持续为30。
在1m26s使SW[2]置一，在1m26s至1m30s期间SW[2]始终为1，且南北信号灯持续为绿灯，东西信号灯持续为红灯，倒计时数字持续为26。
在此次课程设计中，我选择了FPGA交通信号灯的设计题目。 （1）、基础功能：30s红灯倒计时设计、30s绿灯倒计时设计、最后5s闪烁时计时每半秒闪烁一次、南北东西四方向红绿灯设计。（2）、与实际结合的指示信号：红绿灯亮起时的文字“允许通行/禁止通行”的指示、红绿灯亮起时的彩灯提示。（3）、应对于突发情况功能（例如：救护车紧急通行，警察执行任务等）：使南北方向持续为红灯、东西方向持续为绿灯，使南北方向持续为绿灯、东西方向持续为红灯，使南北东西信号灯维持不变。起初，在增加功能的多样性时，我的想法较为单调，在我深入思考，从实际交通信号灯的场景出发，同时结合FPGA的红绿指示灯以及七位数码管的位置，初步为设计增加创意与功能。虽然为大量的状态信号指示赋值容易混乱，但是在我多次的复查和修改后，最终完整实现了我所预期的设计。 九、总结此次FPGA交通信号灯的设计，经过EDA课程设计_基础款、EDA_交通信号灯半成品_含指示信号、EDA_交通信号灯_最终版三个版本的更迭，最终结果呈现如上。 为了将自己的想法皆实现至此课程设计中，我曾多次前往实验室，花费不止七个小时去思考创意、编写与调试代码，经过我的不止四十次的修改完善，终于完成了最终版的设计。 在此次课程设计中，我再次复习了管脚分配、有限状态机的设计、清零信号的设置、红/绿彩灯的亮/暗设计、七位数码管显示设计、case语句的使用等知识。并对以上知识的实际应用与结合有了自己的理解与设计 与此同时，我还运用了parameter、localparam 来定义变量、使用{}来便利赋值、自定义通过按键来实现信号跳转、结合实际给出救护车紧急通行/警察执行任务时需特殊处理交通信号灯的功能。在使用一些技巧快速编码的同时，结合实际应用设计功能。 在实验过程中，我有遇到一些问题，例如切换开发板却显示下载失败，在询问老师后，发现可能是开发板有问题需要更换，在更换开发板后便可以成功下载，继续调试完善代码。 数字逻辑与EDA实验课程设计共有五次实验课，先前的四次实验，我分别学习了Quartus II 软件和 DE2-115 开发板的使用，组合逻辑电路设计、仿真与实现，时序逻辑电路设计与仿真，有限状态机的设计，最后这次课程设计将先前所学综合至一起，为数字逻辑与EDA实验画上句号，也为自己的系列实验课程交上答卷。 十：致谢在五次的数字逻辑与EDA实验课程的进行中，我遇到过许多问题，例如：代码运行环境设置有误、代码语法有误、仿真参数设置有误、代码下载至开发板有误等导致运行出错的问题，在多次询问老师以及自己再调试，已将所有遇到的问题解决，并学习到许多知识，我可以熟练使用Quartus II 软件和 DE2-115 开发板，并且对数字逻辑与EDA的课程知识有了自己的理解与实践。 在此，特别感谢赵老师的悉心指导。 ❤️❤️❤️忙碌的敲代码也不要忘了浪漫鸭！🌞我们好久不见，EDA课程是我很喜欢的一门课，愿你也会喜欢并做的不错！ 最近有许多蛮开心的小幸运，你呢？
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