ICS-43432 over I2S

[falhi]

Hi,

(Toradex Colibri iMX8DX on Colibri Evaluation Board V3)
We are trying to use the microphone ICS-43432 using the I2S. We chose to connect it using pins 79-101-103. The pinout online app shows “unusable” but nothing in the datasheet talks about this. Is this only because of the codec 97? Do you have any tutorial to include in drive this microphone using I2S?

Regards,
Abdessamad

[josep.tx]

Hello @falhi ,
Here you have a post where the same device is used. Hope it helps,

I2S Clock Frequency

Hi, I’m trying to make the my two (2x) ICS-43432 - InvenSense microphone record properly. I want to get a sampling rate of 48,000 KHz when recording. In order to satisfy this requirement i have to set the SAI2 frequency to 24,576 MHz Device tree elements : [upload|p3bBms9sw/IGj6TtdeH6eQ9Sb9w=] [upload|abpHLQKN4G3u4aLSoFq2jIqwE3A=] [upload|Ric0REVOZFzLuyZqCzfZo6whEO8=] as in the last screenshot, the commented line represents my attempt to assign clocks, but still getting 24,00 MHz in clk…

Best regards,
Josep