/*!
* @brief ISR Routine for Low Power Timer
*/
void demo_lptmr_isr(void)
{
volatile uint32_t lptmrCsrTemp;
CLOCK_SYS_EnableLptimerClock(0);
LPTMR_HAL_ClearIntFlag(LPTMR0_BASE); /* write 1 to TCF to clear the LPT timer compare flag */
LPTMR_HAL_Enable(LPTMR0_BASE); /* enable timer */
LPTMR_HAL_SetIntCmd(LPTMR0_BASE, true); /* enable interrupts */
LPTMR_HAL_ClearIntFlag(LPTMR0_BASE); /* clear the flag */
/*wait for write to complete to before returning */
while(!(LPTMR_HAL_IsEnabled(LPTMR0_BASE) && LPTMR_HAL_GetIntCmd(LPTMR0_BASE)));
}
/*!
* @brief LLWU ISR function
*/
void llwu_isr(void)
{
uint8_t pinEn;
NVIC_ClearPendingIRQ(LLW_IRQn);
/* Print LLWU acknowledgement only if UART is enabled */
for(pinEn = 0; pinEn < FSL_FEATURE_LLWU_HAS_EXTERNAL_PIN; pinEn++)
{
if (LLWU_HAL_GetExternalPinWakeupFlag(LLWU_BASE, (llwu_wakeup_pin_t)pinEn)) {
LLWU_HAL_ClearExternalPinWakeupFlag(LLWU_BASE, (llwu_wakeup_pin_t)pinEn); /* write one to clear the flag */
}
}
/*
* Note: This ISR does not write to the LLWU_F3 register because these
* are peripheral module wakeups. The flags contained in the LLWU_F3
* register should be cleared through the associated module interrupt
* and not through the LLWU_F3 per the Kinetis L Family Reference
* Manual (LLWU Chapter)
*/
if (LLWU_HAL_GetInternalModuleWakeupFlag(LLWU_BASE, kLlwuWakeupModule0)) {
CLOCK_SYS_EnableLptimerClock(0);
LPTMR_HAL_ClearIntFlag(LPTMR0_BASE); /* write 1 to TCF to clear the LPT timer compare flag */
LPTMR_HAL_IsEnabled(LPTMR0_BASE);
LPTMR_HAL_SetIntCmd(LPTMR0_BASE, 1);
LPTMR_HAL_IsIntPending(LPTMR0_BASE);
}
if(LLWU_HAL_GetFilterDetectFlag(LLWU_BASE, 0)){
LLWU_HAL_ClearFilterDetectFlag(LLWU_BASE, 0);
}
if(LLWU_HAL_GetFilterDetectFlag(LLWU_BASE, 1)){
LLWU_HAL_ClearFilterDetectFlag(LLWU_BASE, 1);
}
}
/* LLW_IRQHandler that would cover the same name's APIs in startup code */
void LLWU_IRQHandler(void)
{
// The LLWU wakeup interrup is LPTMR source
if (LLWU_HAL_GetInternalModuleWakeupFlag(LLWU_BASE_PTR, PM_RTOS_DEMO_LPTMR_LLWU_WAKEUP_MODULE))
{
LPTMR_HAL_ClearIntFlag(g_lptmrBase[PM_RTOS_DEMO_LPTMR_FUNC_INSTANCE]);
}
// The LLWU wakeup interrup is RTC source
if (LLWU_HAL_GetInternalModuleWakeupFlag(LLWU_BASE_PTR, PM_RTOS_DEMO_RTC_LLWU_WAKEUP_MODULE))
{
RTC_DRV_SetAlarmIntCmd(PM_RTOS_DEMO_RTC_FUNC_INSTANCE, false);
}
}
/* LLW_IRQHandler that would cover the same name's APIs in startup code */
void LLWU_IRQHandler(void)
{
// The LLWU wakeup interrup is LPTMR source
if (LLWU_HAL_GetInternalModuleWakeupFlag(LLWU_BASE_PTR, PM_RTOS_DEMO_LPTMR_LLWU_WAKEUP_MODULE))
{
LPTMR_HAL_ClearIntFlag(g_lptmrBase[PM_RTOS_DEMO_LPTMR_FUNC_INSTANCE]);
}
// The LLWU wakeup interrup is RTC source
if (LLWU_HAL_GetInternalModuleWakeupFlag(LLWU_BASE_PTR, PM_RTOS_DEMO_RTC_LLWU_WAKEUP_MODULE))
{
RTC_DRV_SetAlarmIntCmd(PM_RTOS_DEMO_RTC_FUNC_INSTANCE, false);
}
// The LLWU wakeup interrup is Switch/Button source
if (LLWU_HAL_GetExternalPinWakeupFlag(LLWU_BASE_PTR,(llwu_wakeup_pin_t)BOARD_SW_LLWU_EXT_PIN))
{
LLWU_HAL_ClearExternalPinWakeupFlag(LLWU_BASE_PTR, (llwu_wakeup_pin_t)BOARD_SW_LLWU_EXT_PIN);
}
}
/*FUNCTION**********************************************************************
*
* Function Name : LPTMR_HAL_Init
* Description : Initialize LPTMR module to reset state.
*
*END**************************************************************************/
void LPTMR_HAL_Init(LPTMR_Type * base)
{
lptmr_working_mode_user_config_t working_mode_config;
lptmr_prescaler_user_config_t prescaler_config;
LPTMR_HAL_Disable(base);
LPTMR_HAL_ClearIntFlag(base);
working_mode_config.timerModeSelect = kLptmrTimerModeTimeCounter;
working_mode_config.freeRunningEnable = false;
working_mode_config.pinPolarity = kLptmrPinPolarityActiveHigh;
working_mode_config.pinSelect = kLptmrPinSelectInput0;
LPTMR_HAL_SetTimerWorkingMode(base, working_mode_config);
prescaler_config.prescalerValue = kLptmrPrescalerDivide2;
prescaler_config.prescalerBypass = true;
prescaler_config.prescalerClockSelect = kLptmrPrescalerClock0;
LPTMR_HAL_SetPrescalerMode(base, prescaler_config);
LPTMR_HAL_SetCompareValue(base, 0U);
LPTMR_HAL_SetIntCmd(base, false);
}
static void lptmr_isr(void)
{
// TODO 0xc0170: looks like this gets fired even before set_interrupt
LPTMR_HAL_ClearIntFlag(LPTMR0_BASE);
LPTMR_HAL_Disable(LPTMR0_BASE);
}
