I am experiencing issues with the VBAT pin on the STM32H753ZI Nucleo board. Specifically, the VBAT pin is not responding properly. I am using a CR2032 CMOS battery for RTC backup, but it is not maintaining the date and time as expected. When the power supply is off, the RTC does not hold and run correctly, but it resumes running once the power supply is restored. battery positive connected to VBAT and negative to GND. i have removed SB52.
I have attached the IOC and main file for your reference.
