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STM32L476VG - RTC - Vbat

Question asked by mejrissi.chiheb on Sep 14, 2016
Latest reply on Nov 22, 2016 by waclawek.jan
Dear Gents,
I am using a STM32L476VG for my application. The RTC can be powered by Vbat provided by an external battery in case that VDD drops off. In this mode, when the MCU is powered by Vbat, only the RTC works, keeping track of time. Is there any way to detect if Vbat is going to drop under the needed voltage with the RTC?

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