基于51单片机交通灯程序

1、#include<reg52.h>#include <intrins.h>#define uchar unsigned char#define uint unsigned intbit Flag_SN_Yellow;/SN 黄灯标志位bitFlag_EW_Yellow;/EW 黄灯标志位uchar Time_EW;/东西方向倒计时单元uchar Time_SN;/南北方向倒计时单元uchar EW=15,SN=10,EWL=19,SNL=19; /程序初始化赋值，正常模式uchar EW1=60,SN1=40,EWL1=19,SNL1=19;/川于存放修改值的变量uch

2、ar Flag_Moden=1; /模式变量1正常模式2禁止南北通东西 3禁止东西通南北4禁止东西南北5夜间模式uchar Flag_key=0;ucharcodetable10=0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F;19段选码sbit HC164_Data =P0A0;sbit HC164_Clk =P0A1；sbit EW_green =P0A2;sbit EW_yellow =P0A3;sbit EW_red =P0A4;sbit SN_red =P0A5;sbit SN_green =P0A7；sbit SN_yellow

3、=P0A6;sbit SN_RXD_red =P2A7;sbit SN_RXD_green =P2A6;sbit EW_RXD_red =P2A5;sbit EW_RXD_green =P2A4;sbit FMQ = P1A0； sbit keyl = P3A3; sbit key2 = P3A4; sbit key3 = P3A5; sbit WEI1 =P2A3; sbit WEI2 =P2A2; sbit WEI3 =P2A1; sbit WEI4 =P2A0;/东西数码管第一位 东西数码管第二位 南北数码管第一位 南北数码管第二位/uchar ew=40;sn=35;/ 函数 dela

4、y(uchar z)/功能能延时void Delay(uchar z)uchar a,b;for(a=z;a>0;a-) for(b=200;b>0;b-);void HC_164_Set_byte(uchar duan)-uchar i;for(i=0;i<8;i+)HC164_Data =duan & 0x80;HC164_Clk =0;HC164_Clk =1;duan =duan <<1;void display_smg(uchar wei,uchar num).switch(wei)case 1: WEI1=0;WEI2=1;WEI3=1;WEI

5、4=1;HC_164_Set_byte(tablenum);break;case 2: WEI1=1;WEI2=0;WEI3=1;WEI4=1;HC_164_Set_byte(tablenum);break;case 3: WEI1=1;WEI2=1;WEI3=0;WEI4=1;HC_164_Set_byte(tablenum);break;case 4: WEI1=1;WEI2=1;WEI3=1;WEI4=0;HC_164_Set_byte(tablenum);break; default: break;void Display(void)uchar h,l;h=Time_EW/10;l=T

6、ime_EW;display_smg(1,h);Delay(8);display_smg(2,l);Delay(8);h=Time_SN/10;l=Time_SN;display_smg(3,h);Delay(8);display_smg(4,l);Delay(8);void Key()if(key1=0)Delay(10);if(key1=0) while(!key1);Flag_key+;if(Flag_key=1) Flag_Moden=2;.if(Flag_key=2) Flag_Moden=3;.if(Flag_key=3) Flag_Moden=4;.if(Flag_key=4)

7、Flag_Moden=5;FMQ=1;TR0=1;if(Flag_key=5) Flag_EW_Yellow=0;/SN 关黄灯信号位 Flag_SN_Yellow=0; SN 关黄灯信号位 FMQ=1;Flag_Moden=1;TR0=1;/启动定时Flag_key=0;if(key2=0)while(!key2);Flag_Moden=2;.if(key3=0)while(!key3);Flag_Moden=3;void timer0(void)interrupt 1 using 1static uchar count;TH0=(65536-50000)/256; TL0=(65536-5

8、0000)%6; count+;if(count=10)if(Flag_SN_Yellow=1) /测试南北黄灯标志位SN_yellow=SN_yellow;if(Flag_EW_Yellow=1) /测试东西黄灯标志位EW_yellow=EW_yellow; 一一if(count=20)if(Flag_Moden=1)Time_EW-;Time_SN-;if(Flag_SN_Yellow=1)/测试南北黄灯标志位SN_yellow=SN_yellow;if(Flag_EW_Yellow=1)/ 测试东西黄灯标志位 EW_yellow=EW_yellow;count=0; /模式1 void

9、Zc_moshi()/*S0状态 *EW_RXD_red=0/EW人行道禁止 EW_RXD_green=1;/EW道禁止 SN_RXD_red=1/EW 人行道通行SN_RXD_green=0;/SN 人行道通行Flag_EW_Yellow=0; /EW关黄灯显示信号 Flag_SN_Yellow=0; /SN关黄灯显示信号 Time_EW=EW; /EW=45;SN=40;Time_SN=SN;SN_green =0; /SN 通行，EW!灯SN_red =1;EW_red =0;EW_green =1;while(Time_EW>5)if(key1=0 | key2=0|key3=0

10、) Flag_Moden=1;TR0=0;/启动定时 break;Display。；SN_yellow=0; /SN黄灯亮开始闪烁5秒SN_green =1; 灭/*S1状态*Time_SN=5;while(Time_EW<=5) if(key1=0 | key2=0|key3=0) /Flag_Moden=1;TR0=0;/启动定时 break;Flag_SN_Yellow=1; /SN 开黄灯信号位 Display。；/*S2 状态 *Flag_SN_Yellow=0; /SN 关黄灯显示信号SN_yellow=1;EW_RXD_red=V/EW人行道通行 SN_RXD_green=

11、1;SN 人行道禁止EW_RXD_green=0/EW 人行道通行 SN_RXD_red=0;/SN 人行道禁止Time_EW=SN; /EW=45;SN=40;Time_SN=EW;SN_green=1;/南北绿灯禁止东西通行SN_red=0; /EW_red=1;EW_green=0; / 亮while(Time_SN>5)if(key1=0 | key2=0|key3=0)/Flag_Moden=1;TR0=0;/启动定时 break;Display。;/*S3状态 *EW_green=1;EW_yellow=0;Time_EW=5;while(Time_SN<=5) if(

12、key1=0 | key2=0|key3=0) TR0=0;/启动定时break;Flag_EW_Yellow=1;/SN 开黄灯信号位Display。；Flag_EW_Yellow=0;EW_yellow=1;./模式2禁止南北通东西蜂鸣器响void Jsn()EW_green =0;EW_yellow =1;EW_red =1;SN_red =0;SN_green =1;SN_yellow =1;SN_RXD_red =0;SN_RXD_green =1;EW_RXD_red =1;EW_RXD_green =0;FMQ =干MQ;Delay(10);WEI1=1;WEI2=1;WEI3=

13、1;WEI4=1;/模式3禁止东西通南北蜂鸣器响void Jew()EW_green =1;EW_yellow =1;EW_red =0;SN_red =1;SN_green =0;SN_yellow =1;SN_RXD_red =1;SN_RXD_green =0;EW_RXD_red =0;EW_RXD_green =1;FMQ =干MQ;Delay(10);WEI1=1;WEI2=1;WEI3=1;WEI4=1;/模式4禁止东西南北 蜂鸣器响void JEwSn()EW_green =1;EW_yellow =1;EW_red =0;SN_red =0;SN_green =1;SN_ye

14、llow =1;SN_RXD_red =0;SN_RXD_green =1;EW_RXD_red =0;EW_RXD_green =1;FMQ =干MQ;Delay(10);WEI1=1;WEI2=1;WEI3=1;WEI4=1;/模式5夜间模式，东西南北黄灯闪烁void Yejian()EW_green =1;EW_yellow =1;EW_red =1;SN_red =1;SN_green =1;/SN_yellow =1;SN_RXD_red =1;SN_RXD_green =1;EW_RXD_red =1;EW_RXD_green =1;Flag_EW_Yellow=1; SN 开黄灯

15、信号位Flag_SN_Yellow=1; /SN 开黄灯信号位void main ()P1=0xff;P2=0xff ;P3=0xff;P0=0xff;EW_green =1;EW_yellow =1;EW_red =1;SN_red =1;SN_green =1;SN_yellow =1;SN_RXD_red =1;SN_RXD_green =1;EW_RXD_red =1;EW_RXD_green =1;WEI1=1;WEI2=1;WEI3=1;WEI4=1;IT0=1; /INT0负跳变触发TMOD=0x01;/叱时器工彳于方式1 TH0=(65536-50000)/256;/ 定时器赋初