Problems with I2S nordic drivers

RE: Problems with I2S nordic drivers

ovrebekk — Fri, 13 Oct 2023 08:19:32 GMT

That is excellent news. I will consider the ticket resolved then 🙂

RE: Problems with I2S nordic drivers

Rafael Vidal — Thu, 12 Oct 2023 12:24:45 GMT

thanks very much, this solved the problem.

RE: Problems with I2S nordic drivers

ovrebekk — Thu, 12 Oct 2023 06:26:33 GMT

You don't really need an overlay file when using the nrfx drivers, since these drivers don't follow the standard Zephyr driver model. Setting the pins using the NRFX_I2S_DEFAULT_CONFIG macro should be sufficient.

To declare a pin on port 1 you just need to set bit 5 in the pin number, which is equivalent to adding 32.

As an example P1.04 would be 32 + 4 = 36

Best regards
Torbjørn

RE: Problems with I2S nordic drivers

Joe Kane — Wed, 11 Oct 2023 18:50:19 GMT

Add this to your config:

CONFIG_I2S_LOG_LEVEL_DBG=y

RE: Problems with I2S nordic drivers

Rafael Vidal — Wed, 11 Oct 2023 17:23:41 GMT

Hi Ovrebekk, now the program does log and printk (which is a big step),and there are no errors, but no signal on pins. There is no Overlay file (it was when using non nordic I2S driver, and even the same result if they are included), and the lines of conf.prj are just attached, (SDK V2.4.2). By the way, how do you specify the port for the pins?

thank you very much.

#CONFIG_I2S=y
CONFIG_NRFX_I2S=y
CONFIG_PRINTK=y
CONFIG_FPU=y
CONFIG_NEWLIB_LIBC=y
CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y
CONFIG_CMSIS_DSP=y
CONFIG_CMSIS_DSP_COMPLEXMATH=y

CONFIG_LOG=y

RE: Problems with I2S nordic drivers

ovrebekk — Wed, 11 Oct 2023 11:50:22 GMT

Hi Rafael

Looking at your while loop in main it seems you never yield, which means other threads will not be able to run (such as the thread handling log output).

Could you try to add a sleep function to the end of your while loop and see if it works better?

For instance, just add:

k_msleep(100);

Best regards
Torbjørn

RE: Problems with I2S nordic drivers

Rafael Vidal — Wed, 11 Oct 2023 08:51:01 GMT

Question: Is required to do something related Non Secure mode when working with I2S nordic drivers? we are working with nrf5340