From: "Dave Lag" > > This is the only asm usb code I've seen > > http://pe.ece.olin.edu/ece/projects.html > -- Thanks everyone for your comments. I've already checked out the above link and that seems the closest to some nice raw ASM code I've found at the moment (I was reading through it earlier today). I've also downloaded the C compiler from Microchip and had a play with the CDC firmware they provide but I'm still trying to get my teeth round some of the C coding. Dom -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist