基于51单片机的交通灯设计

#include <reg51.h> #define uint unsigned int #define uchar unsigned char uint temp,temp1,temp2,num,shi,ge,i,j; uchar code table[]={0x01,0x67,0x12,0x42,0x64,0x48,0x08,0x63,0x00,0x40}; //控制芯片240 sbit E1=P0^7; sbit welay1=P2^6; sbit welay2=P2^7; //东西方向 sbit SNL=P2^2; sbit SNY=P2^1; sbit SNR=P2^0; //南北方向 sbit EWL=P2^5; sbit EWY=P2^4; sbit EWR=P2^3; void init() { P0=0xff; P2=0xff; temp=0; temp1=0; temp2=0; shi=0; ge=0; E1=0; TMOD=0x21; TH0=0x3c; //50ms TL0=0xb0; EA=1; ET0=1; TF0=0; TR0=1; } void delay(uchar z) { uchar x,y; for(x=110;x>0;x--) for(y=z;y>0;y--); } void display() { shi=num/10; ge=num%10; P0=table[ge]; welay2=1; welay1=0; delay(10); welay1=1; P0=table[shi]; welay1=1; welay2=0; delay(10); welay2=1; } void time0() interrupt 1 using 1 { temp++; temp1++; TH0=0x3c; TL0=0xb0; //display(); TR0=1; } void main() { init(); while(1) { if(temp==0) { EWL=0; SNR=0; num=31; temp1=0; for(i=30;i>0;i--) { num--; while(temp1!=20) { display(); } temp1=0; } } if(temp==600) // { EWL=1; num=6; j=0; for(i=12;i>0;i--) { j++; if(j%2==0) { num--; } temp2=temp; EWY=!EWY; //灯闪烁 while(temp-temp2!=10) { display(); }; } } if(temp==720) { EWY=1; EWR=0; SNR=1; SNL=0; num=24; temp1=0; for(i=24;i>0;i--) { num--; while(temp1!=20) { display(); } temp1=0; } } if(temp==1200) { SNL=1; j=0; num=6; for(i=12;i>0;i--) { temp2=temp; SNY=!SNY; j++; if(j%2==0) { num--; } while(temp-temp2!=10) { display(); }; } SNY=1; EWR=1; temp=0; } } }