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by campy11
Sat Jan 19, 2019 6:29 pm
Forum: Compute Module
Topic: WM8731 Audio Codec, I2C weirdness
Replies: 6
Views: 2071

Re: WM8731 Audio Codec, I2C weirdness

For what it's worth, I've been experiencing the same phenomenon with a RBP zero W and the WM8731. Lots of flakiness on I2C and looking at logic analyzer, seems to be due to random NACK. Adding 220 ohm serial resistor seems to help. I've seen other design like https://github.com/islandmagic/i2s_audio...

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