So having killed (possibly killed) a PCM4202 I2S interface, and finding the DSP board in the setup won't write to the EEPROM I decided to test another DSP board.
This one is fitted with an ADAU1450. It can not read/write to an EEPROM on SigmaStudio 3.12 or 3.14.1 beta. I haven't tried any other versions. I can not remeber what version I last used that worked. I have also formatted and clean installed both of my computers since then.
I am suspecting a register setting is wrong somewhere...
An electronics engineer and a long term electronics hobbyist. I like tinkering with stuff and making things.