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ADAU1381 eval board setup

Question asked by belaz on Mar 24, 2014
Latest reply on Mar 27, 2014 by belaz


I'm trying to use ADAU1381 eval board to record signal from on board microphones to I2S output with ADAU chip being master on I2S bus.

I got the chip producing BCLK and LRCLK but I see non zero data on the ADC output  only when FrameMode set to TDM4 or 8 but not in Stereo. I have bypassed all elements (wind cancelation, equalizer, etc..) so I basically just want to see the ADC working.  Any Idea what might be causing this is appreciated. Is there reference project that demonstrates recording from on board mics to I2S?