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Andrew Neil
Andrew Neil
Super User
June 19, 2026
Solved

CubeIDE 2.1.1: AHBENR missing IOPDEN for STM32F030R8T

STM32F030R8T - as on the Nucleo-F030R8

PD2 should be present:

 

Therefore GPIODEN should be present at RCC_AHBENR[20]:

 

But it’s not present in the CubeIDE SFRs view:

 

    Mahmoud Ben RomdhaneBest answer
    ST Technical Moderator
    June 22, 2026

    Hello ​@Andrew Neil 

     

    Let me thank you for bringing this issue to our attention.

    An internal ticket has been created and submitted to the dedicated team (Ticket Number: CDM0063714)

     

    Thanks.

    Mahmoud

     

    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.
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    5 replies

    Mahmoud Ben Romdhane
    ST Technical Moderator
    June 22, 2026

    Hello ​@Andrew Neil 

    Let me thank you for posting.

    I am currently checking this behavior, and I will get back to you ASAP.

    Thanks.

    Mahmoud

    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.
      Mahmoud Ben Romdhane
      ST Technical Moderator
      June 22, 2026

      Hello ​@Andrew Neil 

      After checking, the PD2 Pin is supported in STM32F030R8T.

      Thanks.

      Mahmoud

      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.
      Andrew Neil
      Andrew NeilAuthor
      Super User
      June 22, 2026

      Yes, I know the pin is supported - it’s the bit in CubeIDE’s display of AHBENR that’s missing!

       

       

      IOPDEN should appear between IOPCEN and IOPFEN 

       

      The full value of the AHBENR register is correct - it’s just that the decode of the IOPDEN bit is missing.

      A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
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