This is an old revision of the document!


Real Time Clock (RTC)

The RTC is an independent BCD timer/counter. It provides a time-of-day clock/calendar, two programmable alarms and a programmable periodic wake up timer.




  • Time-of-day clock/calendar with subseconds, seconds, minutes, hours (12h/24h format), etc.
  • Daylight saving compensation.
  • Two programmable alarms (interrupts).
  • Programmable wakeup timer (interrupt).
  • Digital calibration.
  • Runs regardless of device status i.e. also in low-power modes and reset


These Functions are available:

  • stm32/peripherals/rtc.1503565965.txt.gz
  • Last modified: 2017/08/24 09:12
  • by ruan