Hi,
Trying to use the RTC clock of the imx rt (1024). The basics work, but I need an interrupt every time the RTC increments seconds.
void rtc::initialize()
{
SNVS_HP_RTC_GetDefaultConfig(&_snvs_rtc_config);
_snvs_rtc_config.periodicInterruptFreq = 1;
SNVS_HP_RTC_Init(SNVS, &_snvs_rtc_config);
_rtc_date_time.year = 2014U;
_rtc_date_time.month = 12U;
_rtc_date_time.day = 25U;
_rtc_date_time.hour = 19U;
_rtc_date_time.minute = 0;
_rtc_date_time.second = 0;
SNVS_HP_RTC_SetDatetime(SNVS, &_rtc_date_time);
SNVS_HP_RTC_StartTimer(SNVS);
SNVS_HP_RTC_EnableInterrupts(SNVS, kSNVS_RTC_PeriodicInterrupt);
EnableIRQ(SNVS_HP_WRAPPER_IRQn);
NVIC_SetPriority(SNVS_HP_WRAPPER_IRQn, 3);
}
This is pretty much a 1 on 1 copy from the example, but then in cpp.
Below is the interrupt handler, which keeps being triggered. The interrupt is firing non-stop. Why?
void SNVS_HP_WRAPPER_IRQHandler(void)
{
if (SNVS_HP_RTC_GetStatusFlags(SNVS) & kSNVS_RTC_PeriodicInterruptFlag)
{
// This fires non-stop, regardless of next clear. Why??
SNVS_HP_RTC_ClearStatusFlags(SNVS, kSNVS_RTC_PeriodicInterruptFlag);
}
}
I also read this from the reference manual, but I have no clue what I can do with that information.
Can you please tell me how I can achieve to receive 1 interrupt, every second, when the RTC incremented its time with one second?
