I have been trying to control ADAU1361 via SPI bus. I found a similar question in this forum, but it didn't help me.
The device seems not to be in SPI mode. I expect at least the serial clock at the output of ADC, but nothing is there.
I pull CLATCH three times before sending a register address. The 8 bits clock and data (all 0) are along with CLATCH.
Please see two plots below.
One of three CLATCH pull
1. Does all zero data matter?
2. I think the timing is OK
3. Next two plots are the data of R0 and R1. anything wrong (format-wise)?
If I use Sigma Studio and SMT-5, the device is programmed correctly.