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waclawek.jan
Super User
August 6, 2022
Solved

STM32F401/RM0368 bad GPIOA->MODER reset value

  • August 6, 2022
  • 3 replies
  • 1097 views

As reported here, this is obviously incorrect.

0693W00000QN7YeQAL.pngAlso, this has been already reported by Uwe Bonnes for 'F411/RM0383, which has indeed been corrected in the registers description, but the GPIO register map still contains the incorrect value. So, could ST please go through all low-end 'F4 RM and check/correct at both places where applicable?

Thanks,

JW

@Amel NASRI​ 

@Uwe Bonnes​ 

This topic has been closed for replies.
Best answer by KDJEM.1

Hi @Community member​ ,

Thank you for bringing this issue to our attention.

I confirm this issue in RM0368, RM0383, RM0401, RM0402 and RM0430.

The correct reset value of GPIOA_MODER register is 0xA800 0000.

I reported this issue internally. 

Internal ticket number: 133879 (This is an internal tracking number and is not accessible or usable by customers).

Kaouthar

3 replies

KDJEM.1
KDJEM.1Best answer
Technical Moderator
September 1, 2022

Hi @Community member​ ,

Thank you for bringing this issue to our attention.

I confirm this issue in RM0368, RM0383, RM0401, RM0402 and RM0430.

The correct reset value of GPIOA_MODER register is 0xA800 0000.

I reported this issue internally. 

Internal ticket number: 133879 (This is an internal tracking number and is not accessible or usable by customers).

Kaouthar

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
waclawek.jan
Super User
September 1, 2022

Thanks, Kaouthar.

Jan

KDJEM.1
Technical Moderator
October 27, 2025

Hello @waclawek.jan ;

 

The issue is fixed in RM0368 Rev 6RM0383 Rev 4RM0401 Rev 4RM0402 Rev 7 and RM0430 Rev 9.

 

Thank you.

Kaouthar

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.