Paul van der Linden wrote:
> If I use HVP, if I set the LVP-configuration bit at 0, I can just use
> the pins PGM, PGC and PGD for digital I/O?
>
> If I use LVP, so the LVP-configuration bit is at 1, I can use the
> pins PGM, PGC and PGD for digital I/O as long as PGM isn't high at
> boot?

I don't remember which way 0 or 1 is for the LVP configuration bit.  If LVP
is disabled, then the PGM pin is a normal I/O pin at all times.  When LVP is
enabled, then the PGM pin is always used for the PGM function.  The PGC and
PGD pins are always used during external programming (whether LVP or HVP) to
transfer the data.  Once the PIC is running they are normal I/O pins.
However, you need to make sure that the external circuit can tolerate them
being wiggled by the programmer.


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