How to add I2S configuration parameters based on Zephyr example?

RE: How to add I2S configuration parameters based on Zephyr example?

Elfving — Fri, 04 Jul 2025 11:46:31 GMT

Unfortunately there doesn't seem to be any available. We do have this old sample made by some summer students, though it is a bit old and there has been some API changes in nrfx that you need to take note of outlined here. There is also several discussions on how to use it available on DevZone. Could you give it a go, either by taking a look this sample, or other posts on DevZone, and let me know if you run into issues?

Regards,

Elfving

RE: How to add I2S configuration parameters based on Zephyr example?

hqiu — Thu, 03 Jul 2025 03:50:37 GMT

Hi Elfving,

Thank you very much.

I dig into the i2s_nrfx and found the parameters I need.

Do you have some examples that could guide me how to use the nrfx driver under Zephyr framework? Thanks.

RE: How to add I2S configuration parameters based on Zephyr example?

Elfving — Wed, 02 Jul 2025 13:53:59 GMT

Hi Friend,

You are right in that the zephyr API for i2s that is being used in this example doesn't give you all these options. This case with a coworker of mine might explain things better than I can, but when you want more control for the i2s peripheral it might be preferable to use the i2s nrfx driver instead of the standard zephyr one.

There are some samples for nrfx, but doesn't seem to be any for i2s. Having a look at these might still be helpful though, and otherwise ofcourse the i2s nrfx driver documentation.

Regards,

Elfving

RE: How to add I2S configuration parameters based on Zephyr example?

hqiu — Tue, 01 Jul 2025 15:29:35 GMT

Sorry, not clear for my description. I need use 24bitin32, but can't use config.word_size to define.