STM32 future support for Zephyr RTOS

[hedejiang]

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,

[Saket_Om · Accepted solution]

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).

[Andrew Neil]

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@hedejiang wrote:

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

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"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 

[Armando Visconti]

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.