Thank you Daniel for your reply.
I found out what was the problem.
I was trying to use the WM8731 in I2S mode (porting from another board), but davinci CPU doesn't support true I2S. Switching to DSP mode resolved my problems.
Cyril
On 30/11/2012 18:17, Daniel Mack wrote:
On 30.11.2012 17:41, Cyril GERMAINE wrote:
Hello,
I work on a board based from DM365EVM baseboard, but with the WM8731 codec instead of the TLV320AIC3x. I tried with several linux kernels (one is the 3.6.6 release). Now the playback works but not the capture, and I'm not able to debug this issue. I have many "0" frames in the captured data, although data and rate on I2S bus is OK.
Do you see the audio gaps in I2S as well? This is the first thing to investigate on, because if they aren't, your problem is unrelated to the Codec.
What are the differences between your board and the DM365EVM regarding the SoC and the clocks ratios? Does the DM365EVM work with 3.6.6? How do your board support files and ASoC machine driver differ?
Too many open questions here that need to be addressed.
Daniel
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