Repeated finite PWM pulse train with delay

Oscar To

Hi,

I am trying to create 5 PWM pulses of 5 seconds with 40% duty cycle followed by an 8 minute delay and then another 5 PWM pulses and so on. I know that I can put a counter with a value of 5 and decrement until counter=0 and set the clock to 0x0000 to create the finite pulse train. for example:

void main(void)
{
WDTCTL = WDTPW + WDTHOLD;                 // Stop watchdog timer

P1DIR |= 0x04;                            // P1.2 output
P1SEL |= 0x04;                            // P1.2 TA1 options
CCR0 = 1000;                              // PWM Period
CCTL0 = CCIE;                                // CCR0 interrupt enable
CCTL1 = OUTMOD_3;                         // CCR1 set/reset
CCR1 = 500;                               // CCR1 PWM duty cycle
TACTL = TASSEL_2 + MC_1;                  // SMCLK, up mode

_BIS_SR(GIE);                             // Enter w/interrupt

while(1);
}

// Timer A Counting overflow interrupt service routine
#pragma vector=TIMERA0_VECTOR
__interrupt void TimerA_ISR(void)
{
    count--;

    if (count ==0) TACTL = 0x0000;
}