SPI - HAL/LL - user guides or documentaion

[srjasz]

I am using HAL and LL to program SPI. The only information I have been able to find that is specific to SPI is comments in the .h files. Is there any other documentation available?

Thanks

[ESP_Sprite]

The HAL and LL maps reasonably well to the underlying hardware, so have you checked the technical reference manual of the ESP32 you're using already?

[srjasz]

Yes, I have been reading the technical reference manual. I was hoping for a users guide similar to that of the API's, or better yet, a demo project.

Thanks

[MicroController]

The HAL/LL is not considered public/stable API, hence documentation is sparse and sometimes outdated.
The most definitive source of information appears to often be the IDF drivers' code