sdelima:
It is a big project for an MCU that does not have a dedicated USB communication. I have started a similiar project with a MC68HC908JK3/JL3; However, I am aiming at getting the USB port to enumerate the MCU. I am utilizing a MAX3340E USB translator to communicate between the USB and SIE, serial interface engine. The SIE may end up being an fpga chip before data is ready to be read by the MCU. It is a big project, but interesting. My best information has come from the USB.org website. If I can give you any more specifics let me know. drollinger@montana.net
Cy Drollinger