I did a series of experiments with a STUSB4500 eval board that needs NUCLEO-F072RB to translate USB to I2C commands. After a couple of weeks I wanted to program new settings to my STUSB4500 device but the nucleo board is no longer working as intended...

How can I calculate the supply current of the MCU (STM32L471) in unprogrammed state? We use it in an ultra-low power application and need to know the battery drain during production and storage.

The CPU is powered using 1.8V both on VDD as well as VDDA (4.7uH coil as well as 1n/100n/1u capacitors in power path).When I measure the Vbat pin (100n cap supporting) in the range 2V-3.6V using the ADC I always measure about 0.1V less than the volta...

I use the Vbat pin to measure a lithium battery (3.6V) at a STM32L471 (Vcc=1.8V Vdda=3V).However my measurements are off by ~0.15V even though I confirmed the physical signals.Do I have to calibrate the ADC somehow for this to work properly?Expected ...

In my system (STM32L471) I want to periodically measure Vbat. Can I do this through the Vbat pin if Vdda may not always be present? Obviously I turn on Vdda whenever I want to measure Vbat but are there any leakage currents or other problems in case ...