> Engineer's professional world is of strict rules, specs etc. There is > no much sense to cheat those rules or specs; Correct. Nobody tries to run a uC or uC abover its rated speed, nobody omits the decoupling capacitors, we all respect the maximum and minimum voltages on PIC pins, and we never design from the 'absolute maxima'. And all programmers use the propper Vpp voltage and the Vpp-before-Vdd sequence (when required). And nobody tries to use a serial port for anything but that what it was deigned for (but - where can we find what it was designed for?). Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist