Hi Tahmid,

I am using mickoC and proteus for simulation.
Please tell me some advices regarding the problem of this code.
This code is for our traffic light project and I’ve got a problem with the push button(which is the interrupt), it won’t work.

Code:

int j=5;
int i=0;
int count = 0;

void interrupt(void)
{
for(i=0;i<5;i++)
{
PORTA = 0xFF;
PORTC = 0×00;
PORTD = 0×00;
Delay_ms(1000);
PORTC = 0x0F;
PORTD = 0xF0;
Delay_ms(1000);
count = count + 1;
}
PORTA = 0×00;
PORTC = 0xF0;
PORTD = 0x0F;

Delay_ms(5000);

for(j=5;j<10;j++)
{
PORTA = 0xFF;
PORTC = 0×00;
PORTD = 0×00;
Delay_ms(1000);
PORTC = 0xF0;
PORTD = 0x0F;
Delay_ms(1000);
count = count + 1;
}

PORTA = 0×00;
PORTC = 0x0F;
PORTD = 0xF0;
INTCON.INTF = 0; //You HAVE to clear interrupt flag
}

void main() {

INTCON.GIE = 1; //Enable Global Interrupt
INTCON.INTE = 1; //Enable RB0/INT external Interrupt
INTCON.PEIE = 0; //Disable all unmasked peripheral interrupt
OPTION_REG.INTEDG = 1; //Interrupt on rising edge

TRISB = 0xFF; //making portB as input
TRISC = 0×00; // making portC as output
TRISD = 0×00; // making portD as output
TRISA = 0×00; // making portA as output

ADCON1 = 7; //Disable ADC so that PORTA can be used for digital purpose
CMCON = 7; //Disable comparator

PORTC = 0x0F; // initially the red light is on for pedestrian
PORTD = 0xF0; //initially the green light is on for vehicle
PORTA = 0×00;

}

Thanks in advance…