#include <avr\io.h>

#include <avr\interrupt.h>


#define OCP PINB1

volatile int currentMillisecond = 0;
//Output compare ISR

SIGNAL(SIG_TIMER1_COMPA)
{
   PORTD ^=(1<<PD0);            //Toggle PortD0 
}

//Roughly 1 second
void timer1(void)
{
   OCR1A = 0x0F42;               //Set OCR1A
   TCCR1A = 0x00;                //Timer counter control register
   TCCR1B = (0 << WGM13)|(1 << WGM12)|(1 << CS12)|(0 << CS11)|(1 << CS10); // WGM1=4, prescale at 1024
   TIMSK |= (1 << OCIE1A);         //Set bit 6 in TIMSK to enable Timer 1 compare interrupt.
   sei();
} 


int main(void) {

	DDRD = 0xFF;          // Set port D as output
    
	timer1();

	for (;;) {
	
/* loop forever timer does the job*/
    }

}