#include <avr/io.h>
#include <avr/interrupt.h>


int main(void)
{
	DDRC=0b11111111;
	PORTC=0b11111111;
	OCR1AH=0b00001110;
	OCR1AL=0b00001111;
	//TCCR1A
	TCCR1B=(1<<CS12)|(1<<CS11)|(1<<CS10);				// (CS12=1 CS11=0 CS10=1)=>1024
	TIMSK=(1<<OCIE1A);
	sei();													
    while(1)
    {
        
    }
}

ISR(TIMER1_COMPA_vect)
{
	int8_t status=0;
	if(status==0)
	{
		PORTC=0b00000000;
		status=1;
	}
	else
	{
		PORTC=0b11111111;
		status=0;
	}
	TCNT1H=0b00000000;
	TCNT1L=0b00000000;
}