Hi,
I use RTC for timing FreeRTOS (also in Tickless mode - in STOP mode) I use ALARM A in rtc. I noticed one weird behavior. Some times for examaple after 5 hours of running program the ALARM A is missed - no Interrupt of alarm happended, althougt the Alarm should happen.
For example I set ALARM A in 7 minutes, 58 seconds and 512 Subseconds . Alarm should activate interrupt in 7 minutes, 58 seconds and 505 Subseconds, but the IRQ did not happen. But when I now look to RTC register, so the actual time is already 7m59s,2396 SubSec.
I notice:
I do not dissable or clear interrupt flag for RTC.
When I change PREDIV S from 3699 to for example 1849 this behavior is much more frequent - it happen practically after 1 second of running program.
Do you have any advice please?
Best Ragards, Jan.
