I met a following error on FX2LP-cy7c68013a. The project is designed as USB2.0 HS mode.
When Host sent NYET PID, USB PHY has no any answer, sound card is closed.
However, FX2LP have no any interrupts with NYET, so how to deal with NYET?
The following photo is other UAC2.0 sound card. It answered ACK after NYET, so Host success to open sound card.
Solved! Go to Solution.
Could you please provide details of your system? I also need to look into the source code for analyzing the issue.
Please share the source if not confidential.
Thanks for your reply!
Simply speaking, based on FX2LP, how to check out NYET which sent from Host?
My question is already solved. The root reason is that UAC device have not responded for
AudioControl Requests, such as Sampling Frequency Control and Clock Validity Control.
Thank you again for your time.