void main(void)
{
	WDTCTL = WDTPW | WDTHOLD;	// stop watchdog timer
	P1DIR   |=  BIT0;		              // configure P1.0 as output

	volatile unsigned int i;		// volatile to prevent optimization

	while(1)
	{
                      P1OUT   ^=  BIT0;	              // toggle P1.0
	        __delay_cycles(1000000);      // delay
	}
}