[sdiy] STM32 vs WM8731

[Rob Spencer]

I think I’m getting to the crux of the issue.

Am I right in thinking I2S MCK is only active when sending data across I2S? So if it’s in DMA mode, it will be active.

And without MCK or it’s own clock, the CODEC can’t ACK the I2C traffic?

I’m also working on the assumption that I can’t measure MCK as it’s over the 20MHz limit of my scope and logic analyser.

Rob Spencer
gmsn.co.uk
07590 267835








On 17/02/2016 15:37, "Synth-diy on behalf of Eric Brombaugh" <synth-diy-bounces at dropmix.xs4all.nl on behalf of ebrombaugh1 at cox.net> wrote:

>On 02/17/2016 04:25 AM, Rob Spencer wrote:
>>
>> I wasn’t aware of Erics board, that looks really good. I’ll have a dig
>> through for some pointers if that’s okay with Eric?
>
>Go for it - that's why I put the info up there.
>
>Eric
>
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