occasional audio noise when powering up ADAU1467
I have downloaded a huge program to the ADAU1467 and during selfboot
occasionally I get a short loud audio noise when powering up the ADAU1467.
Can someone give me a simple advice what to do in the sigmastudio ( Hibernate ? )
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
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