HAL_RTCEx_BKUPWrite

Hallo, the information written on rtcbackup register, is retained when micro is powered off?Or the information will be lost?

Best answer by TDK

The backup registers (TAMP->BKPxx) are volatile memory and will be lost when power is lost. They can be retained if VBAT remains powered.

TDKAnswer

Super User

The backup registers (TAMP->BKPxx) are volatile memory and will be lost when power is lost. They can be retained if VBAT remains powered.

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