I want to use the AD7616 with SPI interface with Software mode.
I try to check the SPI interface by write and read the registers.
Are there any setting I need to check ?
Below is my setting now
1. CHSELx -> Not set, let it be default value
2. DB0/1/2/3/4/5/6/7/8/9 -> GND
3. DB13/14/15 -> GND
4. CS -> SPI-CS
5. SCLK/RDb -> SPI-SCK
6. DB10/SDI -> SPI-MOSI
7. DB12/SDOA -> SPI-MISO
Are these setting OK ?
Are you using the AD7616 evaluation board or your designed PCB?
If AD7616 evaluation board I would recommend following the below step-by-step guide. If not, I would still suggest having a look as it point to checks you may want to do yourself to spot what may have gone wrong.