Design of traffic light system based on single chip microcomputer

#include

#define uchar unsigned char

#define uint unsigned int

sbit FMQ=P3^4;

sbit QR=P2^7;

sbit QY=P2^6;

sbit QG=P2^5;

sbit HR=P2^7;

sbit HY=P2^6;

sbit HG=P2^5;

sbit ZR=P2^4;

sbit ZY=P2^3;

sbit ZG=P2^2;

sbit YR=P2^4;

sbit YY=P2^3;

sbit YG=P2^2;

sbit SWITCH1=P1^0;

sbit SWITCH2=P1^1;

sbit SWITCH3=P1^2;

sbit SWITCH4=P1^3;

sbit P3_2=P3^2;

sbit P3_3=P3^3;

uchar DAT1, DAT2;    //display time variable

uchar DISP1[2]={0,0};    //Display buffer 1, north and south

uchar DISP2[2]={0,0};    //Display buffer 2, things

uchar code table[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xFF};

void DISPCLK1(volatile i);

void DISPCLK2(volatile i);

void DEL1MS(uint z)

{

    uint x,y;

for(x=0;x    for(y=0;y<123;y++);

}

void main()

{

     flying i,j;

TCON=0x5;

PX1=1;

EX0=1;

EX1=1;

EA=1;

P0=0xFF;

P1=0xFF;

P2=0xFF;

P3=0xFF;

while(1)

{

    P1=0xFF;

P2=0xFF;

DAT1=25;

DAT2=25;

QG=0;

HG=0;

ZR=0;

YR=0;

for(i=0;i<20;i++)

{

   for(j=0;j<200;j++)

   {

        DISPCLK1(DAT1);

DISPCLK2(DAT2);

DEL1MS(25); //delay 5 milliseconds

   }

   FMQ=1;

   DAT1=DAT1-1;

   DAT2=DAT2-1;

}

P1=0xFF;

P2=0xFF;

ZY=0;

YY=0;

QY=0;

HE=0;

for(i = 0; i < 5; i++)

{

for(j = 0; j < 200; j++)

{

DISPCLK1(DAT1); //display

DISPCLK2(DAT2); //display

DEL1MS(25); //Delay 3 milliseconds

}

QY = ~QY; //The yellow light is on in the north-south direction

HE = ~HE;

ZY = ~ZY; //The yellow light is on in the east-west direction

YY = ~YY;  

FMQ = ~FMQ; //Buzzer beeps when the light turns yellow

DAT1 = DAT1 - 1; //Complete the digital subtraction operation, and send the adjusted digital to the video memory  

DAT2 = DAT2 - 1; //Complete the digital subtraction operation, and send the adjusted digital to the video memory  

} 

P1 = 0xff;

P2 = 0xff;  

DAT1 = 15; //Assembly 0x20

DAT2 = 15; //Assembly 0x20

ZG = 0; //The green light is on in the east-west direction

YG = 0;

QR = 0; //Red light on in north-south direction

HR = 0;

for(i = 0; i < 10; i++) //Execute for 15 seconds

{

for(j = 0; j < 200; j++)

{

DISPCLK1(DAT1); //display

DISPCLK2(DAT2); //display

DEL1MS(25); //Delay 3 milliseconds  

}

FMQ = 1; //Buzzer sounds

DAT1 = DAT1 - 1; //Complete the digital subtraction operation, and send the adjusted digital to the video memory 

DAT2 = DAT2 - 1; //Complete the digital subtraction operation, and send the adjusted digital to the video memory 

}

//The yellow light flashes in the last 5 seconds

P1 = 0xff;

P2 = 0xff; // Turn off all lights

ZY = 0; //yellow light on

YY = 0;

QY = 0;

HE = 0;

for(i = 0; i < 5; i++)

{

for(j = 0; j < 200; j++)

{

DISPCLK1(DAT1); //display

DISPCLK2(DAT2); //display

DEL1MS(25); //Delay 3 milliseconds    

}

QY = ~QY; //The yellow light is on in the north-south direction

HE = ~HE;

ZY = ~ZY; //The yellow light is on in the east-west direction

YY = ~YY;  

FMQ = ~FMQ; //Buzzer beeps when the light turns yellow

DAT1 = DAT1 - 1; //Complete the digital subtraction operation, and send the adjusted digital to the video memory  

DAT2 = DAT2 - 1; //Complete the digital subtraction operation, and send the adjusted digital to the video memory  

} 

}

}

void D_X() interrupt 0 using 0

{

    fly i,j,temp0,temp1,temp2,temp3;

EA=0;

P3_2=1;

while(!P3_2);

temp0=DAT1;

temp1=DAT2;

temp2=P1;

temp3=P2;

DAT1=60;

DAT2=60;

P1=0xff;

P2=0xff;

ZG=0;

YG=0;

QR=0;

HR=0;

for(i=0;i<60;i++)

{

    for(j=0;j<200;j++)

{

    DISPCLK1(DAT1);

DISPCLK2(DAT2);

DEL1MS(25);

}

DAT1=DAT1-1;

DAT2=DAT2-1;

}

DAT1=temp0;

DAT2=temp1;

P1=temp2;

P2=temp3;

EA=1;

}

void N_B() interrupt 2 using 0

{

    fly i,j,temp0,temp1,temp2,temp3;

EA=0;

P3_3=1;

while(!P3_3);

temp0=DAT1;

temp1=DAT2;

temp2=P1;

temp3=P2;

DAT1=60;

DAT2=60;

P1=0xff;

P2=0xff;

ZR=0;

YR=0;

QG=0;

HG=0;

for(i=0;i<60;i++)

{

    for(j=0;j<200;j++)

{

    DISPCLK1(DAT1);

DISPCLK2(DAT2);

DEL1MS(25);

}

DAT1=DAT1-1;

DAT2=DAT2-1;

}

DAT1=temp0;

DAT2=temp1;

P1=temp2;

P2=temp3;

EA=1;

}

void DISPCLK1(volatile i)

{

    DISP1[0]=i%10;

DISP1[1]=i/10;

P0=table[DISP1[0]];

SWITCH2=0;

DEL1MS(2);

SWITCH2=1;

P0=table[DISP1[1]];

SWITCH1=0;

DEL1MS(2);

SWITCH1=1;

}

void DISPCLK2(float i)

{

    DISP2[0]=i%10;

DISP2[1]=i/10;

P0=table[DISP2[0]];

SWITCH4=0;

DEL1MS(2);

SWITCH4=1;

P0=table[DISP2[1]];

SWITCH3=0;

DEL1MS(2);

SWITCH3=1;

}