Jan-Erik Soderholm wrote: > But, the 18F4550 is one of the new USB chips, and then > you have quite a lot of examples and a framework > written in C18 from Microchip. I'm not sure that Jal would > be the best option in this case... The USB code is a PITA to do. Any small change and boom it goes. I spent a week trying to find why nothing worked. Turns out I was missing a banksel somewhere (where it happened to affect everything). I've ported Bradley A. Minch's ASM USB firmware to "plain" asm (no structured macros, which GPASM did not seem to like). If anyone wants a copy, feel free to ask. I'll be releasing the whole project code once I'm done with it. The USB stuff is pretty much done though. The original source can be found here: http://pe.ece.olin.edu/ece/projects.html -- Hector Martin (hector@marcansoft.com) Public Key: http://www.marcansoft.com/hector.asc -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist