Hello,
I am using configUSE_TICKLESS_IDLE with RTC2 setup for FreeRTOS tick, occasionally I am seeing the asserting in task.c at line configASSERT( ( xTickCount + xTicksToJump ) <= xNextTaskUnblockTime ). Looking at the tickless idle code, I am wondering it this is caused by the inaccuracy of RTC2. Have you seen any issue like this before? Is there any suggestion for how to debug this further?
Thanks,
-Ray
/* Correct the system ticks */
{
TickType_t diff;
TickType_t exitTime;
nrf_rtc_event_clear(portNRF_RTC_REG, NRF_RTC_EVENT_TICK);
nrf_rtc_int_enable (portNRF_RTC_REG, NRF_RTC_INT_TICK_MASK);
exitTime = nrf_rtc_counter_get(portNRF_RTC_REG);
diff = (exitTime - enterTime) & portNRF_RTC_MAXTICKS;
/* It is important that we clear pending here so that our corrections are latest and in sync with tick_interrupt handler */
NVIC_ClearPendingIRQ(portNRF_RTC_IRQn);
if ((configUSE_TICKLESS_IDLE_SIMPLE_DEBUG) && (diff > xExpectedIdleTime))
{
diff = xExpectedIdleTime;
}
if (diff > 0)
{
vTaskStepTick(diff);
}
}
