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bmak
bmak
Senior
September 24, 2021
Solved

State of GPIO lines before loading program to flash - STM32F4

  • September 24, 2021
  • 1 reply
  • 715 views

Hi,

I wonder in which state are the GPIO lines of STM32F407VG BEFORE loading program to flash memory.

Thanks :)

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Best answer by Peter BENSCH

This depends on the GPIO port: Please check the relevant section GPIO registers in the reference manual for the respective family.

You will find the reset values of GPIOx_MODER, GPIOx_PUPDR etc, which are active until changed by the initialization.

Regards

/Peter

1 reply

Peter BENSCH
Peter BENSCHBest answer
Technical Moderator
September 24, 2021

This depends on the GPIO port: Please check the relevant section GPIO registers in the reference manual for the respective family.

You will find the reset values of GPIOx_MODER, GPIOx_PUPDR etc, which are active until changed by the initialization.

Regards

/Peter

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bmak
bmakAuthor
Senior
September 24, 2021

Thanks! I had no idea where to look for the answer :).

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