At 16:09 3/07/99 -0500, you wrote: Make sure that either the LVP config bit is programmed as '0' or ensure that port b.3 (pin-36) is grounded at all times. Tony, are you reading this? This may well be why your 16F877 emulated a piece of plastic. I have been thinking about this for a while. Jim >Guys, > I have successfuly gotten a 16F84 up and running and made an attempt >at getting >a 16F877 up, but I'm stumped. > >The pic is programmed correctly (verified using a protoboard, I am >blinking Port D.0 through D.2) > >I wired it up using the same "concept" as the 16F84: > OSCin/OSCout (pins 13/14) to a Crystal (same crystal that I used on >my 16F84, 10mhz). With 22pf caps to ground. >4.7k resitor to +5v on Pin 1 for MCLR. +5v on pins 11 and 32 with a >.1uf cap to ground. 12 + 31 to ground. >I then wired pin 21 (Port D.2) to a 470 ohm to a led... > > I don't see any voltage change on port D at all...as if either no >clocks are running, or the chip is in reset... OR I >don't know about something else I should have wired up... Anyone have >any ideas? > -- Aaron > ________________________________________ Email: newfound@pipeline.com.au http://www.new-elect.com WARP-13 SALE now on. $48USD with world delivery. MPLAB compatible PIC programmers and firmware upgrades for many programmers. ________________________________________