1. We followed the instructions of "EVAL-AD7147.pdf" to install the evaluation software from the ADI website, and then plugged the USB connector from the USB port of the PC into the mini-USB socket (J3) on the evaluation board. After doing those steps, we found that the "Device ID" is FFF and "Silicon Revision" is F.
We got the same result both on win10 64-bit and win7 64-bit OS.
2. We double clicked the icon, "Evaluation Demo".
3. After few seconds, we got the error message: USB communication failed.
We also got the same result both on win10 64-bit and win7 64-bit OS.
Question: (1) Could I guess this is a hardware problem?
(2) How to solve it?
Thanks for any answer, opinion, or suggestion.