> Hmmm I had an ICSP circuit on my 16F84 and had no problems
> with that, I
> isolated rb6 and 7 with a jumper from my application circuit, and also
> the vcc to the icsp connector. The mclr was tied with a diode
> and a 10k
> resistor to vcc.

IMHO that can't work: the diode from MCLR to Vcc will prevent MCLR from
rising above Vcc + 0.6V, which is not enough to enter programming mode.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads