using SMC_SetPowerModeWait from isr

tuomasaaltio — Thu, 02 Mar 2017 10:05:37 GMT

what is the correct way to enter low power mode from isr ?I'm using FRDM-KL25Z. My tpm isr doesn't work:

void TPM1_IRQHandler(void)
{
        GPIO_SetPinsOutput( BOARD_DEBU_GPIO, 1u << BOARD_DEBU_GPIO_PIN );
        //SMC_PreEnterWaitModes();
        SMC_SetPowerModeWait(SMC);
        //SMC_PostExitWaitModes();
        GPIO_ClearPinsOutput( BOARD_DEBU_GPIO, 1u << BOARD_DEBU_GPIO_PIN );
    /* Clear interrupt flag.*/
    TPM_ClearStatusFlags(BOARD_TPM_BASEADDR, TPM_CHANNEL_FLAG | kTPM_TimeOverflowFlag);
}

Re: using SMC_SetPowerModeWait from isr

Hui_Ma — Fri, 03 Mar 2017 07:48:41 GMT

I don't recommend enter into lower power mode in interrupt service routine.

It could set a flag in interrupt service routine and after exit the interrupt service routine check the flag to determine if enter into lower power mode or not.

Wish it helps.

Have a great day,
Ma Hui
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

topic using SMC_SetPowerModeWait from isr in Kinetis Microcontrollers

using SMC_SetPowerModeWait from isr

Re: using SMC_SetPowerModeWait from isr