sniff_key.c

/*
 * KEY_SNIFF.c
 *
 * Created: 2015-02-25 오후 2:48:34
 *  Author: Jaeki
 */ 


#include <avr/io.h>
#include <avr/interrupt.h>
ISR(INT0_vect)
{
	
	PORTA = 0xff;
}


int main(void)
{
    DDRA = 0xff;
	//DDRC = 0xff;
	//PORTA = 0x00;
	//PORTC = 0xff;
	
	cli(); //초반에 인터럽트를 초기화 해준다.
	EIMSK = 0b00000001;
	EICRA = 0b00000010;
	EIFR = 0b00000000;
	sei();
	
	while(1){
		printf("Wait your SIGNAL\n")
	}	
}