Quintin Beukes wrote: > I was wondering though, are these threads preemptive or cooperative? Cooperative. Preemptive multitasking is a large can of worms that is rarely appropriate to open on small embedded systems. In over 100 PIC projects I have yet to encounter one where preemptive multitasking would have been a good idea. I have use cooperative multitasking a bunch of times, usually for handling input streams. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist