> Can You run the oscillator with a 10 MHz crystal > in default mode (RC) and it works with the right > speed? No. But why would you want to program a PIC and leave the configuration fuses at their default value? Any decent programmer will program the fuses along with the rest of your program. Or will you next question be whether a PIC in its erased state will run your program? Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu