I've built a custom PCB with ADAU1452 and everything is working quite well except for the SPDIF input.
I think I've configured everything the way it should be, but no audio can be heard. My current setup is as follows:
1. Serial Port 1 (input) is used to receive data from an ADC (works just fine)
2. Serial Port 1 (output) is used to transmitt data to a DAC (work just fin)
3. SPIDF In/Out interfaces are complete copy of ADAU1452 eval board.
I've already verified that ASRC 0 by routing Serial Audio to and from it.
See attached images for configuration.
P.S I'm using Sigma studio 3.11, Build 1, Rev 1356