Thanks, Olin, and others that have replied. Olin's link is quite=20
informative, and indicates that ICD is more than just sticking a=20
connector on a board and hooking up 5 wires. I will study in more detail=20
after lunch.

The reference to MCLR is, the resistor connected there is labeled as =20
470 ohm, and then tagged as "typical values". I didn't know whether to=20
take it, all resistors on the drawing not labeled otherwise were also=20
470 ohm, or that the 470 ohm and capacitor values were approximate, and=20
could vary a value or 2 up or down. Seems to me a poor labeling situation.

On 8/6/2010 10:07 AM, Olin Lathrop wrote:
>
> What does MCLR have to do with all this?  I thought the problem was PGC a=
nd
> PGD also used as data lines during normal operation.
>   =20
>
--=20
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