Hi, I'm working with MCF54455EVB and I need to communicate via USB. The final purpose for using this board, don't allow us to use any OS so I have to program all the drivers. By now I can comunicate with ATA in FAT FILE system, but I don't know how to do it with USB, I need some driver to be able to write/read it. I've found CMXUSB_LITE driver, but the problem is that works with MCF5225x and I don't know if this board is too different to try to port this driver to my board. I would be agreed for any information related with this portability, cause by now I don't know how to implement this driver.