occasional audio noise when powering up ADAU1467

Does this occur, by any chance, when there is an active S/PDIF input? Is there a trimmed down project you can share that does this?

Does this occur, by any chance, when there is an active S/PDIF input? Is there a trimmed down project you can share that does this?

I'm only using the analog AD Input and DA outputs. It's only happening with this huge project.

The second problem I have : the readbacks of values ( DSP readback, realtime Display ) only work occasionally ( some values seem to be displayed but not right ) , even though the programming / downloading works fine and the board works fine in terms of audio.

The strange thing is : I can get - some -  correct values from some Aux Inputs but not from DC sources or GPIO Inputs

I have lengthened the cable about a few centimeters from USBi to the board. When I use the origanal cable it works fine. I checked four times the cable but can't find any fault ....

Is the cable crucial in terms of screening / capacity crosstalk etc ? 

I found the reason. It was a delay block in the project where I accidently set it not to a delay in "0" or "1" but in "pm" .

That caused the noise