I'm trying to use an adau1445 with my pcb designed on my own. I can see the BCLK LRCK MCLK on the scope, these are ok. I can reach the DSP over the USBi, I can toggle a LED as well But I can hear no audio, altough I connected a sine source to SerialOut0 in SigmaDsp. I use a Texas codec. If I feed it from another I2S source, it works well.
The strange thing is, that if I check the signal on another I2S source, I can see the zeros and ones on the scope, but if I try to check the SerialOutput pins on adau1445 I can't see anything but 0.5mV p-p noise.
These are my register settings:
SerialOutput2 enabled @48kHz master, all others are disabled
MCLK to DSP core and to SerialOut enabled
Do you have any idea what to do, what to check?
Thanks in advance: