#include <stdint.h>
#include <msp430.h>

void delay(int ms) {
    while (ms--)
        __delay_cycles(1000);
}

int main() {
    WDTCTL = WDTPW | WDTHOLD;

    BCSCTL1 = CALBC1_1MHZ;
    DCOCTL = CALDCO_1MHZ;

    P1DIR |= 0x01;

    while (1) {
        P1OUT |= 0x01;
        delay(500);
        P1OUT &= ~0x01;
        delay(500);
    }

    return 0;
}