ADAU1442 serial input routing problem
Hello.
I have ADAU1442 with 6 serial input, 0,1,2 for WM ADC, 3,4,5 for WM8804 SPDIF receiver. Project has only one Master output for DAC.
I need use ASRC for each input channel, but after configuration, I cant hear signal from SDATAIN2 and SDATAIN4, other channels work fine. All clocks for DSP are ON, all clock domains are INPUT.
Electrical connections are tested.
Audio Signal Processors
adau1442
SigmaDSP Audio Processors
Hi Adam,
Your serial port register settings look correct. Just to confirm the 6 inputs are all I2S slaves from the ADC and WM8804?
Are you getting audio passing through for channels 0, 1 3 and 5? I assume you are passing the tone to the output SDATA_OUT0 as well?
One thing just to double check for SDATA_IN4, is the clock domain set to input?
Do you see any activity on the channels 2 & 4 coming into SigmaStudio? Perhaps try to pass through without the switch or connect the inputs directly to a level detector and/or DSP readback to see if you can read data. If no data is there, that could help us isolate the problem between the I2S bus and the inputs to the DSP core.
-JT
Thanks for fast answer. I replaced ADAU and problem solved.
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