Dear Support Team,
I have build a board with ADAU1761, but seem it can't work well, there is no any audio output on all of output pins includes pin17,18,19,20,21, I used the same project file which can work well on EVB as attached.
1. Link compile and download, the result display is successful as attached picture;
2. pls refer to the attached my schematic, I can find the input audio signal probe on R18 using oscilloscope but can't find the output signal probe on C20.
3. I try to measurement the MICBIAS voltage, after I enable it and re-download, I measurement the voltage is still 0V on TP5.
I have debugged it two days but I can't find any fail cause, it is urgency and I really need you help. I guess maybe the DSP don't work on. what do you think? Do you have any suggestion to check if the DSP is work well? I have checked the power supply and ripple, GND, and MCLK all are OK. what else I need to check?