Hello,
Thank you in advance for any answers and your time.
I am using STM32L412CBT6P for my application. There are 2 custom boards with the same part and the following problem exists in both of the boards. Also attached is the connections diagram to the MCU.
The problem: PB9 of the MCU is clamped at exactly 1.2V despite of any configuration. The configuration I tried include output high, low, open drain; input - no push pull, pull up and pull down; external interrupt. I also tried putting an external pull down and; lastly, I tried lifting the pin to not have any connection at all, but with no results whatsoever.
Even without any firmware the pin stays at 1.2V despite the reset state of GPIOs being input(?).
Any hint towards the solution would be appreciated.
Regards,
Vivek
