Imx8m evk audio interfaces expansion connector

[AYJF]

Hello I have an i.MX 8MQuad Evaluation Kit (EVK), and I’m planning to connect an external Audio ADC interface using i2s , I read the board have an Board Expansion Connector for Audio Interface, I think it’s J1801 , but I can’t find any documents related. Could you please provide some info about it ? How can I connect my external Audio ADC using i2S ? Any description or schematics for j1801? I’m using yocto to create my Linux os , and my sdk .  If with the documentation a device tree and driver information for using audio adc external device using i2s, is added I will appreciate a lot.

regards 

[Bio_TICFSL]

Hello,

This is the Quick start guide for the audio connector:

https://www.nxp.com/docs/en/quick-reference-guide/IMXABQSG.pdf

Regards

[AYJF]

Hi @Bio_TICFSL thanks for getting back to me. I was reading the quick start guide for the audio connector, but I noticed the imx8m Evk is not included in the boards supported by the audio card and even the document doesn’t explain how audio interface connector is organized, I mean ,  I need a description or overview imx8m evk board J(1801) expansion board , I’m planning to use it with a custom Audio ADC card using I2S .After establishing the physical connection, I will deal with the device tree and driver, I will use yocto for building the OS and the SDK.