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Topic: Arduino Zero - I2S Full Duplex (Read 394 times) previous topic - next topic


Jul 21, 2017, 10:22 pm Last Edit: Jul 21, 2017, 10:28 pm by IMACK

I have seen the I2S examples (SimpleTone and InputSerialPlotter) when the Arduino Zero I2S works in one direction (either writing or reading).

I would like to connect my Zero to an audio codec like the WM8731:

I am not sure about the hardware communication, the WM8731 supports "I2S Mode" and also "DSP Mode" (see attachments).

So in a nutshell, I don't know which mode should I use for a full duplex I2S communication (I would like to read and write on real time on the codec) and what is the hardware connection I should follow.

Thanks in advance.

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