Problem about communication with FPGA via USB 3.0 | Cypress Semiconductor
Problem about communication with FPGA via USB 3.0
My project is about communication between PC and FPGA. Previously, all things works well. However, this afternoon, the system broke down suddenly. When debugging, I found that I cannot implement loopback example (from AN65974) any more, which always succeeded previously. However, when I connect FX3 to USB2.0 ports, it still works.
Then I wonder if a certain pin of USB3.0 failed. So I test the bulkloopauto example via USB3.0 port. It still works. I have no idea where is the problem, could someone give me some suggestions to narrow down the problem.?
Thank you very much.