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Domy_ST
Associate III
Mar 4, 2026 12:32 PM UTC
Solved

Bootloader via UART on NUCLEO-H755ZI-Q

Hi ST Community,

I'm wondering if there's a sample project for a UART Bootloader for the NUCLEO-H755ZI-Q series.

Thanks for your support

 

mƎALLEm
mƎALLEmBest answer
ST Technical Moderator
Mar 4, 2026 1:02 PM UTC

+

AN3155 «How to use USART protocol in bootloader on STM32 MCUs »

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8 replies

mƎALLEm
mƎALLEm
ST Technical Moderator
Mar 4, 2026 12:36 PM UTC

Do you mean a custom bootloader over UART?

PS: I don’t see why posting this question in CubeIDE forum board!

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Domy_STAuthor
Associate III
Mar 4, 2026 12:46 PM UTC

not customized but a minimal example of bootloader operation via uart (.bin file)

Andrew Neil
Andrew Neil
Super User
Mar 4, 2026 12:52 PM UTC

I think the question was "custom bootloader" vs the System bootloader in ROM ?

So custom bootloader:

System bootloader:

  • AN2606, Introduction to system memory boot mode on STM32 MCUs
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.
    mƎALLEm
    mƎALLEmBest answer
    ST Technical Moderator
    Mar 4, 2026 1:02 PM UTC

    +

    AN3155 «How to use USART protocol in bootloader on STM32 MCUs »

    To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
      Domy_STAuthor
      Associate III
      Mar 4, 2026 1:11 PM UTC

      Thanks for the documentation, I meant some examples already developed for that series

      mƎALLEm
      mƎALLEm
      ST Technical Moderator
      Mar 4, 2026 1:21 PM UTC

      Why don’t use the ST bootloader like indicated by the application notes provided above?

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        TDK
        TDK
        Mar 5, 2026 2:20 AM UTC

        https://github.com/STMicroelectronics/stm32-mw-openbl

         

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