/*  Square-one test program to see if anything works at all.  Puts
    a recognizable waveforem on P1.0 that should be perfectly
    stable and look something like this:
    __    __    _______    __    _______    __    _______
      |__|  |__|       |__|  |__|       |__|  |__|       

*/


#define GREEN_LED       0x01    // Green LED is on bit 0 of P1

main() {
    while (1) {                 // Repeat forever
        P1 &= ~GREEN_LED;       // Green LED on
        P1 |=  GREEN_LED;       // Green LED off
        P1 &= ~GREEN_LED;       // Green LED on
        P1 |=  GREEN_LED;       // Green LED off

        P1 |=  GREEN_LED;       // Wait a short while
        P1 |=  GREEN_LED;
        P1 |=  GREEN_LED;
        P1 |=  GREEN_LED;
        }                       // End 'repeat forever'
    }                           // End main()