Sam,
I am busy on other things and will not have time on UAC.
[quote user="Samming Wang"]Could you help verify UAC1 to play 48k audio? [/quote]
I tried a few times before, but never got UAC1 enumeration working.
[quote user="Samming Wang"]I doubt whether the USB UDC/DMA driver (of AM335x SDK7) can achieve max packet size of 1024 bytes in isochronous mode.[/quote]
I doubt this has been validated, but I don't think 1024 bytes ISO should have issue in gadget mode. In host mode, webcam with 1020 bytes ISO has been validated. It is the same DMA driver for both host and gadget mode.
My question is UAC does not require much data, a few hundred bytes should be sufficient, why you want to use 1024 bytes?