At 09.14 2012.05.21, you wrote: >Must VDD and VSS be connected to both sides of the 40 pin 16F887 or is=20 >one side enough? VDD is on pin 11 and 32, VSS on 12 and 31. If we believe Microchip (and we only have good reasons to) You MUST connect= all of them EVEN JUST FOR PROGRAMMING! --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .