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GPIO state in bootloader

Question asked by Wayne Taylor on Apr 10, 2018

Do the GPIOS keep their existing state when jumping from the user code into the built-in bootloader? Or do they revert to their power on states?   I'm sspecifically interested with respect yo the stm32f205 devices. I realise I could write my own bootloader to ensure this behaviour but one less piece of code to manage is always a plus.

I have looked in the bootloader app notes but they were of no real help. 

 

Any input will be greatly appreciated. 

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