• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 78 subscribers
  • Views 324 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

EVM430-FR6047: Timer Interrupt Vector and Timer Configuration

Michael Reisinger
Prodigy 10 points
Part Number: EVM430-FR6047
Other Parts Discussed in Thread: MSP430FR6047

Hi,

I´m currently working with a EVM430-FR6047 with a MSP430FR6047 Controller and want to configure a timer to generate a periodical interrupt. My problem is, that the controller doesn´t enter the interrupt service routine. I have configured the timer in the following way, whereat the Timer_A0_Init() function is called in the main function before the while(1) loop:

void Timer_A0_Init(void){
    Timer_A_initUpModeParam timerAParam;
    timerAParam.clockSource = TIMER_A_CLOCKSOURCE_SMCLK;
    timerAParam.clockSourceDivider = TIMER_A_CLOCKSOURCE_DIVIDER_8;
    timerAParam.timerPeriod = 10000;
    timerAParam.timerInterruptEnable_TAIE = TIMER_A_TAIE_INTERRUPT_ENABLE;
    timerAParam.captureCompareInterruptEnable_CCR0_CCIE = TIMER_A_CCIE_CCR0_INTERRUPT_DISABLE;
    timerAParam.timerClear = TIMER_A_SKIP_CLEAR;
    timerAParam.startTimer = true;

    Timer_A_initUpMode(TA0_BASE,  &timerAParam);

    Timer_A_enableInterrupt(TA0_BASE);
    Timer_A_startCounter(TA0_BASE, TIMER_A_UP_MODE);

}

The interrupt service routine where currently just try to toggle a LED and a Port-Pin is the following:

#pragma vector=TIMER0_A0_VECTOR
__interrupt void Timer_A0_ISR(void) {
    if(LEDisOn == 1) {
        LEDisOn = 0;
        hal_system_LEDOff(HAL_SYS_LED_1);
        GPIO_setOutputLowOnPin(GPIO_PORT_P7, GPIO_PIN5);
    } else {
        LEDisOn = 1;
        hal_system_LEDOn(HAL_SYS_LED_1);
        GPIO_setOutputHighOnPin(GPIO_PORT_P7, GPIO_PIN5);
    }

    Timer_A_clearTimerInterrupt(TA0_BASE);
}

By debuging the program I found out that the program doesn´t enter the service routine but repeatedly starts from the beginning of the main function.
My guess is that i do not have the right interrupt vector. I´ve tried many other timer interrupt vectors defined in the appropriate header file but nothing worked.

For the sake of completeness here my main function:

int main(void)
{
    WDTCTL = WDTPW + WDTHOLD;

    hal_system_Init();
    hal_uart_Init();

    Timer_A0_Init();

    GPIO_setAsOutputPin(GPIO_PORT_P7,GPIO_PIN5);

    while (1)
    {
      ...
    }
}

Thanks in advance and best regards

**Attention** This is a public forum