I am writing a USB driver for the 5484. On the very first OUT message to endpoint 0 (a vendor request)
I get the setup data then see the fifo get the 24 data bytes I am supposed to get, then ~1usec later,
it goes down to 20 bytes without any registers being touched. Interrupts are off.
when I read the data I never see the first longword.
does anyone have any ideas ?
is there a complete test app for USB on this chip yet ?