/*
 * main.c
 *
 *  Created on: Apr 24, 2014
 *      Author: hendri
 */
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>

ISR(PCINT0_vect)
{
    if (!(PINB & (1<<4))) {
        PORTB|=(1<<7);
        _delay_ms(1000);
        PORTB&=~(1<<7);

    }
}


int main (void)
{
	DDRA=0xff;
	DDRB |=(1<<PB7);// LED output enable
	PORTB|=(1<<PB4); // pint PCINT4 pullup
	PCMSK0 |= (1<<PCINT4);    // enable interrupt
	PCICR |= _BV(PCIE0);
	
// push button 2
	PORTB|=(1<<PB5); // pint PCINT5 pullup
	PCMSK0 |= (1<<PCINT5);    // enable interrupt
	PCICR |= _BV(PCIE0);

	sei();
	while (1){
		PORTA=0x00;
		for (unsigned char i=0;i<8;i++)
		{
			PORTA = ~(1<<i);
			_delay_ms(500);
		}

	}
}