I encounted a problem with MX53 usb device mode.
I set the MX53 to bulk only devce with my self firmware code,
and I initial enpoint 1 to "Bulk IN" and enpoint 2 to "Bulk OUT".
I had got the "set configuration 1" command from endpoint 0.
But I don't know how to get OUT command from endpoint 2, like to get "setup command" from endpoint 0,
Then I don't know when to prime the data from Host? There is no any NAK and Complete status from endpoint 1 & 2.
Thanks for your help!