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H
hedejiang
Graduate
August 17, 2025
Solved

STM32 future support for Zephyr RTOS

  • August 17, 2025
  • 3 replies
  • 923 views

Dear ST Team,

I am an embedded developer working with STM32 MCUs in various projects, and recently I have been exploring the use of Zephyr RTOS due to its growing adoption and strong ecosystem.

I noticed that companies like Nordic Semiconductor provide a dedicated SDK (nRF Connect SDK) which deeply integrates Zephyr with their MCUs, making it easier for developers to use advanced RTOS features, drivers, and middleware.

I would like to ask if ST has any plans to:

1. Support the migration of more ST sensor drivers into Zephyr RTOS.
2. Offer a dedicated SDK or integration layer (similar to Nordic’s nRF Connect SDK) that makes Zephyr development on STM32 more streamlined and accessible.

Such an initiative would greatly benefit the developer community and strengthen STM32’s position in modern IoT and embedded software ecosystems.

Best regards,

    This topic has been closed for replies.
    Best answer by Saket_Om

    Hello @hedejiang 

    I reported your request internally.

    Internal ticket number: 215875 (This is an internal tracking number and is not accessible or usable by customers).

    3 replies

    S
    Saket_OmAnswer
    Technical Moderator
    August 18, 2025

    Hello @hedejiang 

    I reported your request internally.

    Internal ticket number: 215875 (This is an internal tracking number and is not accessible or usable by customers).

      A
      Andrew Neil
      Super User
      September 16, 2025
      @hedejiang wrote:

      I noticed that companies like Nordic Semiconductor provide a dedicated SDK (nRF Connect SDK) which deeply integrates Zephyr with their MCUs

      "Companies like" ?

      Nordic is a bit different from ST.

      Nordic is focussed on a few System-On-Chip products, where complex communication stacks are key.

      ST is much more a generalist MCU supplier.

       

      Anyhow, ST certainly are getting into Zephyr: 

      https://www.st.com/content/st_com/en/ecosystems/stm32-mcus-in-the-open-source-software-ecosystem/zephyr.html

      https://docs.zephyrproject.org/latest/boards/st/index.html 

      A
      Armando Visconti
      ST Employee
      September 17, 2025

      Hi Hedejang,

      >> 1. Support the migration of more ST sensor drivers into Zephyr RTOS.

      Yes, we have in the plan to add support to all of our MEMS sensors. Moreover, as indicated by zephyr sensor WG, the will support the new read_and_decode API. https://docs.zephyrproject.org/latest/hardware/peripherals/sensor/read_and_decode.html

       

      The process is long and slow, as the integration requires also that the PR is reviewed and accepted by zephyr community.

      >> 2. Offer a dedicated SDK or integration layer (similar to Nordic’s nRF Connect SDK) that makes Zephyr development on STM32 more streamlined and accessible.

       

      No. it is not in any current ST plan.

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