交通灯信号灯程序.docVIP

#includereg52.h #define uchar unsigned char #define uint unsigned int uchar code table[10]={0xc0,0x9f,0xa4,0xb0, 0x99,0x92,0x82,0xf8,0x80,0x98};//八位共阳，位选给高电平， //段码给低电平导通 uchar code table1[5]={0x00,0x01,0x02,0x04,0x08,};//位选四位 sbit NSG=P1^0;//南北的绿灯由P1.0口控制north south greed， sbit NSY=P1^1;//共阳给低电平点亮 sbit NSR=P1^2; sbit EWG=P1^3;//东西绿灯 sbit EWY=P1^4; sbit EWR=P1^5; sbit key1=P3^3;//按键用来选中应急情况 sbit key2=P3^4; sbit key3=P3^5; sbit key4=P3^6; sbit key5=P3^7; uchar flag, EWGT,NSGT; t1,t2,t3,t4, count,count1,count2; void delayms(uint z)//延迟函数约为1ms { uint x,y; for(x=z;x0;x--) for(y=110;y0;y--); } v