How to connect 2 I2S modules with nrf5340 audio dk?

RE: How to connect 2 I2S modules with nrf5340 audio dk?

laksh — Thu, 27 Jun 2024 06:05:37 GMT

Hi Johnny,

Previously I used stm32wb for my project there I used SAI for connecting my mic and amplifier. Using SAI block A I connect my mic and using SAI block B i connected my amplifier. Likewise here in nrf5340 I saw I2S has 2 modes one is for master and another is for slave lets take SCK pin, when I configure I2S I saw SCK_M and SCK_S. I don't know what it do. Can you help me with that.

Regards,

Laksh.

RE: How to connect 2 I2S modules with nrf5340 audio dk?

laksh — Thu, 27 Jun 2024 05:09:09 GMT

Just Curious, is it possible to connect both my mic and amplifier in that same I2S Line.

RE: How to connect 2 I2S modules with nrf5340 audio dk?

laksh — Thu, 27 Jun 2024 04:56:44 GMT

Hi Amanda,

Thanks.

RE: How to connect 2 I2S modules with nrf5340 audio dk?

laksh — Thu, 27 Jun 2024 04:56:12 GMT

Hi,

Thanks for the input.

RE: How to connect 2 I2S modules with nrf5340 audio dk?

Amanda Hsieh — Tue, 25 Jun 2024 13:19:47 GMT

The nRF5340 I²S (Inter-IC Sound) module, supports the original two-channel I²S format, and left- or right-aligned formats. Please refer to the nRF5340 product specification for more details.

RE: How to connect 2 I2S modules with nrf5340 audio dk?

laksh — Tue, 25 Jun 2024 13:11:59 GMT

Hi Amanda,

In that one I2S how many channels are there.

Regards,
Laksh

RE: How to connect 2 I2S modules with nrf5340 audio dk?

Amanda Hsieh — Tue, 25 Jun 2024 12:37:24 GMT

Hi,

There is only one I2S interface of the nRF5340, I don't see any way to emulate a second I2S interface.

Regards,
Amanda H.