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ADAU1781 as I2S codec with Raspberry Pi GPIO pins

Question asked by epalaima on Jun 21, 2016
Latest reply on Jun 27, 2016 by larsc


I see in the ADAU1781 driver wiki page that I2S communication is supported. I wanted to ask what steps I would need to take to make this work with a Raspberry Pi. The end goal is to use the ADAU1781 as an audio I/O hat, working through the GPIO pins that is recognized by alsa, such that it shows up as an audio device under aplay -l.

 

What steps do I need to take both in terms of pin connection (to set up I/O and proper clocking) and within the Raspberry Pi's linux system to make this work?

 

I am using the ADAU1781 dev board and a Raspberry Pi 3 model B which has the following pinout: https://www.element14.com/community/servlet/JiveServlet/previewBody/73950-102-10-339300/pi3_gpio.png

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