MSPM0G3507: TIMG compare match output no work

Hi,

Please try with the following code. 

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#include "ti_msp_dl_config.h"

uint16_t counter1;

uint16_t counter2;

#define GPIO_GRP_0_PORT (GPIOA)

/* Defines for PIN_0: GPIOA.12 with pinCMx 34 on package pin 5 */
#define GPIO_GRP_0_PIN_0_PIN (DL_GPIO_PIN_12)
#define GPIO_GRP_0_PIN_0_IOMUX (IOMUX_PINCM34)

void Initial_TIMG0(void);

/********************************************************************/
//
//
//
/********************************************************************/
void Initial_TIMG0(void)
{
DL_TimerG_reset(TIMG0);

DL_TimerG_enablePower(TIMG0);

delay_cycles(POWER_STARTUP_DELAY);

/*
* Timer clock configuration to be sourced by BUSCLK / (40000000 Hz)
* timerClkFreq = (timerClkSrc / (timerClkDivRatio * (timerClkPrescale + 1)))
* 10000000 Hz = 40000000 Hz / (1 * (3 + 1))
*/
static const DL_TimerG_ClockConfig gTIMER_0ClockConfig = {
.clockSel = DL_TIMER_CLOCK_BUSCLK,
.divideRatio = DL_TIMER_CLOCK_DIVIDE_1,
.prescale = 3U,
};

/*
* Timer load value (where the counter starts from) is calculated as (timerPeriod * timerClockFreq) - 1
* TIMER_0_INST_LOAD_VALUE = (6.55 ms * 10000000 Hz) - 1
*/
static const DL_TimerG_TimerConfig gTIMER_0TimerConfig = {
.period = 65535,
.timerMode = DL_TIMER_TIMER_MODE_PERIODIC_UP,
.startTimer = DL_TIMER_STOP,
};

// DL_GPIO_initPeripheralOutputFunction(IOMUX_PINCM34, IOMUX_PINCM34_PF_TIMG0_CCP0); // PA12 connect TIMG0 CCR0 peripheral
DL_GPIO_initDigitalOutput(GPIO_GRP_0_PIN_0_IOMUX);

DL_GPIO_enableOutput(GPIOA, DL_GPIO_PIN_12); // set PA12 use for CCR0 compare match output

DL_TimerG_setClockConfig(TIMG0, (DL_TimerG_ClockConfig *) &gTIMER_0ClockConfig);

DL_TimerG_initTimerMode(TIMG0, (DL_TimerG_TimerConfig *) &gTIMER_0TimerConfig);

DL_Timer_setCaptureCompareValue(TIMG0, 32768, DL_TIMER_CC_0_INDEX); // PA12 delay 3.2767ms to toggle

DL_Timer_setCCPDirection(TIMG0, GPTIMER_CCPD_C0CCP0_OUTPUT); // set CCR0 as compare match output

// DL_Timer_setCaptureCompareOutCtl(TIMG0, 0, 0, 2, DL_TIMER_CC_0_INDEX); // CCP(PA12) initial in low level, no invert source CCU or CCD event
//
// DL_Timer_setCaptureCompareAction(TIMG0, GPTIMER_CCACT_01_CUACT_CCP_TOGGLE, DL_TIMER_CC_0_INDEX); // PA12 every 6.5535ms toggle

DL_TimerG_enableInterrupt(TIMG0, DL_TIMERG_INTERRUPT_ZERO_EVENT|DL_TIMERG_INTERRUPT_CC0_UP_EVENT);

DL_TimerG_enableClock(TIMG0);
}

/********************************************************************/
//
//
//
/********************************************************************/
int main(void)
{
SYSCFG_DL_init();

Initial_TIMG0();

NVIC_EnableIRQ(TIMG0_INT_IRQn);

//DL_SYSCTL_enableSleepOnExit();

DL_TimerG_startCounter(TIMG0);

while (1)
{
__NOP();
}
}

void TIMG0_IRQHandler(void)
{
switch (DL_TimerG_getPendingInterrupt(TIMG0))
{
case DL_TIMER_IIDX_ZERO:
counter1++;

DL_GPIO_togglePins(GPIO_LEDS_PORT, GPIO_LEDS_USER_LED_1_PIN); // PA0 every 6.5535ms toggle

break;

case DL_TIMER_IIDX_CC0_UP: // PA12 every 6.5535ms auto toggle
counter2++;
DL_GPIO_togglePins(GPIO_GRP_0_PORT, GPIO_GRP_0_PIN_0_PIN);

break;

default: break;
}
}

Best regards,

Cash Hao

Hi cash

thanks for your reply, I know this way can be done, but i need use compare match toggle(auto toggle),

can you try to use this way?

i think i follow the manual setting step but it doesn't work

Hi Cash

thanks for your help, it's down.

can i ask why is CCPO set to 0 instead of 2?

Hi Cash

great answer, thanks.