On 01/07/2011 02:10, Kerry Wentworth wrote:
> If you use the MCLR as an input, you will need to turn VCC on and off at
> the right time to get into programming mode. (VCC off, MCLR to VPP, VCC
> on)  From your schematic, it does not appear that the programmer
> controls VCC.

Actually it could, provided the battery was not present.  The programmer=20
is just a PK2 clone.

> Also, a 1K resistor between ground and the switch common should allow
> programming in any switch position.

Like Dave said, this is a very good suggestion.  Thank you.

David
--=20
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