Hi! What would be the best pullup resistor value to connect +5V to the /MCLR to achieve the most stable operation? (I'm using PIC18F452) I've seen circuit diagrams with straight 5 volts, some with really high resistors, and this given 'ICD ready' circuit with 47K Ohm... Regards, Jean-Pierre -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.