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Audio Interface in IMX7ULP with DMA

Question asked by Vivek Rajpara on May 22, 2020

Hello,

 

Setup:

IMX7ULP + dig mic 

 

Queries

1) Is there a way to capture audio data using DMA over I2S interface? if yes, how much max audio data(at 16k sample rate) can be captured?

2) Is there a way to access I2S interface from Cortex A7 processor? 

 

Looking forward to a helpful response. It would be great if someone can provide sample applications for audio capturing on IMX7ULP either on M4/A7.

 

Thanks in advance

 

Regards,

Vivek

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