int button;
void setup(){
 DDRA=0xFF;
 DDRJ=0x00;
}




void loop() {
button = PINJ & 0x01 ;


 if(button == 0x01){
 PORTA |= 0x01;
 }

else{

 PORTA |= 0x02;
}

 PORTJ = 0x00;
PORTA = 0x00;
}