Part Number: EVMK2H
Hi Team,
We found that the USB 3.0 device connected to the EVM can't be recognized and have done some tests trying to identify the cause.
1. We have checked that VBUS = 5 V.
2. USBDRVVBUS of U24Y = 5 V.
3. We tried 3 different USB 2.0 devices and all of them worked.
4. We have replaced B22, C839 and C840 with new parts.
5. We have checked that the USB clock generated by U19 is 100 MHz.
What else do you think may be the cause? Or do it need any other data for you to analyze this issue?
Thanks!
Roy Hsu
