> If you are going to use XC18 (I think C18 is the same) No they are different - C18 is the old Microchip compiler, XC8 is the Hi-Te= ch compiler (now owned by Microsoft) that now does both the 14 bit parts (1= 0F3xx, 12F, 16F) and the 18F parts. --=20 Scanned by iCritical. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .