How can I use Zephyr with ESP32-(S3) with Platformio

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1

I just noticed that it seems to be possible to use Zephyr on ESP32 controllers and I might be interested to switch from FREERTOS to Zephyr to port code more easily.
Thats what I found:

And on github the say that they already support alot of features:

And I tried to see if it is possible by using creating a config:

[env:Zephyr-esp32-s3-devkitc-1]
platform = espressif32
board = esp32-s3-devkitc-1
framework = zephyr
monitor_speed = 115200

But I get confirmed that it is currently not supported:

Error: This board doesn't support zephyr framework!

Does it really got no support or does PlatformIO just does not support it at the moment?

Is there a way which allows me to use it? Like a board configuration/definition or something like that?

Did someone tried it before I would be really thankful if someone could share their experience.

2

Open issue:

3

I found that too but there were no updates since years so I thought maybe they already added it. I guess it is still not implemented?
Can I do some own definitions to use Zephyr or is it not possible?
Thank you for your time.

4

There is a PlatformIO builder script for Zephyr since it’s used in e.g. STM32, but it’s by far one of the most complicated builder scripts in PlatformIO. You would need a very in-depth knowledge of PlatformIO, SCons, Zephyr, CMake and ESP32 in order to debug if something goes wrong or needs to be adapted for ESP32.

5

If the situation is like Nuttx, just use the build system provided with the OS and don’t try to reimplement it in Platformio. Use it as an editor and maybe a debugger - maybe - if you must.

6

The build system is already implemented in framework-zephyr/scripts/platformio

IMO what is missing is porting what is present in other platform to launch the build script in the framework as @maxgerhardt was saying.

It would be nice to have a separate git for the build scripts, for now it seems that they are not online somehow…