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Graduate
May 6, 2025
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HAL_RTCEx_BKUPWrite

  • May 6, 2025
  • 1 reply
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Hallo, the information written on rtcbackup register, is retained when micro is powered off?Or the information will be lost?

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    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.

    1 reply

    TDKAnswer
    Super User
    May 6, 2025

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