I need your help again please. I had problems getting the ADAU1701 working in selfboot mode, and the problem was solved here:
When replicating my PCB with the mods, it did not work. Oscillator is running and the digital supply is correct, so I assume the DSP is willing to run. However, in Sigma Studio, I keep getting the "Compiled. Comms Failed" error. So I hooked up a separate PCB with JUST the EEPROM on it, here is the schematic:
SCL and SDA have pull-ups of 2.2k each to PVDD, which is 3.3V. So this schematic SHOULD be fine with Sigma Studio? For some reason it's not, I get the same error. My USBi interface is working fine, because I can still program the evaluation kit!
To make matters worse, the old PCB which I kept as a reference, is no longer working for whatever reason I have no clue.