单片机交通灯及仿真图

1、P2A1控制code，*功能说明：交通灯，红灯30秒，绿灯20秒，黄灯10秒接线说明：P1控制位选，P2控制段选，P3A2P3A7控制LED/P2A0控制十位,个位作者：合工大LS*/#include<>unsignedchari,j,t1,t2,count,n;/sbitx1=P2A0；/sbitx2=P2A1；sbitR2=P3A2;sbit丫2=P3A3;sbitG2=P3A4;sbitR1=P3A5;sbitY1=P3A6;sbitG1=P3A7;unsignedchartable尸0xc0,0xf9,0xa4,0xb0,0x99，0x92，0x82，0xf8,0x80，0

2、x90;/延时/voiddelay(unsignedintdelaytime)while(delaytime-);/数码管显示/voiddisplay(void)/x2=0;x1=1;delay(5);P3=tablei/10;P1=tablej/10;delay(500);显示十位/x1=0;x2=1;delay(5);P3=tablei%10;P1=tablej%10;delay(500);/显示个位P1=0x01;delay(5);P2=tablei/10;delay(500);P1=0x02;delay(5);P2=tablei%10;delay(500);P1=0x10;delay(

3、5);P2=tablej/10;delay(500);P1=0x20;delay(5);P2=tablej%10;delay(500);voidfuzhi()i=t1;j=t2;/初始化/voidt0nit()TMOD=0x01;/00000001,16位定时模式TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;TR0=1;ET0=1;/定时1秒/voidt0()interrupt1(count+;if(count=20)(t1-；t2-;count=0;)TH0=(65536-50000)/256;TL0=(65536-50000)%256;)

4、/1红亮2绿变黄/voidzhuanyi()(if(t2=0&&t1!=0)(t2=10;G2=!0;Y2=!1;R1=!1;)/2黄变红1红变绿/voidzhuaner()if(t1=0&&t2=0)(t2=30;t1=20;Y2=!0;R2=!1;R1=!0;G1=!1;)/2红亮1绿变黄/voidzhuansan()(if(t1=0&&t2!=0)(t1=10;R2=!1;G1=!0;Y1=!1;)/1黄变红2红变绿/voidzhuansi()(if(t1=0&&t2=0)(t2=20;t1=30;Y1=!0;R1=!1;R

5、2=!0;G2=!1;)main()(while(1)(t0nit();R1=!1;/1红亮Y1=!0;G1=!0;R2=!0;Y2=!0;G2=!1;/2绿亮n=0;t1=30;t2=20;while(1)(fuzhi();display();if(t2=0&&t1!=0)zhuanyi();/1红亮2绿变黄if(t1=0&&t2=0)zhuaner();n+;/2黄变红1红变绿，n+产生标志位，用于区分两次t1和t2同时为零if(t1=0&&t2!=0)zhuansan();/2红亮1绿变黄if(n=1)if(t1=0&&t2=0)/1黄变红2红变绿(zhuansi();n+;)if(n=2)break;)FTUFM