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GPIO state when unprogrammed

Question asked by Lukasz Przenioslo on Apr 5, 2018
Latest reply on Apr 5, 2018 by Lukasz Przenioslo

Hello there,

Is there any set state of the GPIO's when the MCU (STM32L4 in my example) is unprogrammed? Or more likelly, when the MCU is in the system bootloader (I believe thats where the program counter is before I flash the MCU with anything). It seems to me that the GPIO are set as outputs HIGH or have pull-ups set.

I would appreciate all help.