#include <msp430G2153.h>

#pragma vector=PORT1_VECTOR
__interrupt void Port_1(void)
{
	P1OUT ^= BIT0;
	P1IFG &= ~BIT2;
	P1IES ^= BIT2;
}

void main(void){

	WDTCTL = WDTPW | WDTHOLD;

	BCSCTL1 = CALBC1_16MHZ;
	DCOCTL = CALDCO_16MHZ;

	P1DIR |= BIT0;
	P1SEL = 0x00;
	P1IFG &= ~BIT2;
	P1IE |= BIT2;
	_enable_interrupts ();

	while(1){
	}
}