Hi Peter,
Thanks for your tip. I'll give it a go as well. Nothing to lose at this
point.

-----Original Message-----
From: Peter L. Peres [mailto:plp@ACTCOM.CO.IL]
Sent: Tuesday, 9 May 2000 3:01
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: ?? Short ??


Hi,

I've been reading this thread and I have a gut feeling about it. I had a
PIC board where the MCLR trace went under the PIC and got shorted to +Vcc.
The board worked perfectly (I used the watchdog), but it would behave
strangely when the reset button fitted for testing was pressed - for
obvious reasons. In theory, it is enough if it is shorted to any pin that
is programmed as output and HIGH for this to happen.

Another thing to check is whether the ICSP parts relevant to MCLR are
fitted correctly, i.e. no 22 ohms instead of 22K reset pullup, Shottky
diode mounted the right way around and not shorted (by overheating when
soldering), etc.

2 bits,

        Peter