Hi,

I've searched the PicList FAQ trying to find information on this particul=
ar
subject, but without luck.

I think I have problems with MCLR of my 16F877. The PIC is on a prototype
board, with an ICD connector on it (pins of the connector are RB6, RB7, V=
SS,
VDD and VPP, I don't need low voltage programming). At first, I tied the
MCLR pin of the PIC to VDD with a 10K resistor, but the ICD failed to wor=
k
reliably. I changed to a 100K resistor, and now the ICD programs, reads a=
nd
debugs correctly. But the PIC don=B4t initialice without the ICD.

The ICD demo board from Microchip comes with a 47K (R20) resistor between
MCLR and VDD. I've tried it too, without success.

Any ideas?

Thanks,

Alvaro.

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.