2023-09-27 03:15 PM
Why does PB9 idle high in reset for the STM32L4P5? At least I'd like to know this the next time I design a board, where I could find this reference. Full part is STM32L4P5RET although I'm guessing its the same across multiple parts.
2023-09-27 03:46 PM
PB3 / PB4 based on default GPIO MODER RM0432
Perhaps CAN1_TX PB9 involvement per AN2606 in the Boot Loader, not if your code runs.
2023-09-27 11:41 PM
On what hardware do you see this?
How do you make sure the mcu is in reset?
How do you observe the pin in question?
JW
