Hello @LWChris,
Yes, the 31/1023 configuration is particularly useful when SSR register is used.
After conducting some tests on my STM32WB55RG board using a basic example that sets an alarm to wake it up from standby mode, I found that the difference...
The RTC accuracy depends on your input clock and his own precision. The RTC allow you to do a smooth calibration, if needed. (ref section 29.4.11 "RTC smooth digital calibration" of rm0434).
To obtain the 1 Hz input to the calendar, you can use PRE...
@LWChris ,
Ok I didn't understand your set up. Good to hear you found a workaround.
For the power consumption, accordingly to the AN4759 (Using the hardware real-time clock (RTC) and the tamper management unit (TAMP) with STM32 microcontrollers - App...
Hello @LWChris ,
The __HAL_RTC_IS_CALENDAR_INITIALIZED macro is used to check if the RTC has already been configured. The RTC registers retain their values while powered up, even on a reset (while Vbat or Vdd are up).
One point you mentioned is the r...
Hello Simon,
Some points that are not included in the code you provided :
Enabling the SSRU IRQ: TAMP_STAMP_LSECSS_SSRU_IRQHandlerCalling the HAL_RTCEx_SSRUIRQHandler() function in the TAMP_STAMP_LSECSS_SSRU_IRQn interruptEnabling the SSRU IT with th...
