> I have a problem programming the PIC16F877A. I am
> using the P16PRO hardware and picallw software. I
> became the same error again and again: "Verify
> Error".

I just recently ran into this same problem and someone
helped me fix it.  Here's how I setup for ICSP with my
16F877A:

1. MCLR/Vpp connected to Vdd through a 100k resistor
and a diode (to block the 12V from getting to the
Vdd).

2. PGD is a direct connection to my programmer.

3. Here's where my problem was; PGC.  The clock line
needs some capacitance.  What I do is put a 0.01uF
capacitor from PGC to ground right next to the PIC.  I
guarantee this will fix your problem.

4. PGM tied directly to programmer if it has this pin,
otherwise, make sure it's grounded during programming.


I know this setup works, I don't know exactly what
you've got going on there, but I can almost guarantee
that if you put a little capacitor on the PGC line to
ground your problems will disapear.

Good luck.  Cheers


=====
MJ Brush
LeftClick.ca Internet Media Services
mbrush@[NOSPAM]leftclick.ca

______________________________________________________________________
Post your free ad now! http://personals.yahoo.ca

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body