HAL Example how to read VBAT pin for low voltage

[Elik Livnat]

I have a capacitor connected and need an example of HAL function that read register which signal that VBAT pin if low level of voltage detected.

Thank you.

[waclawek.jan]

There is no simple signal for this, but STM32 which have VBAT pin usually have a connectable internal resistor divider from that pin to one ADC channel. Read the ADC chapter in Reference Manual (RM) of your STM32 model.

JW