> > The crystal connected won't matter in ICSP.
>
> Except that without a crystal (or with a low-frequency crystal) the
> /MCLR
> rise time (from vcc to vpp) is easier to meet, because this rise time is
> expressed in osc periods.

For which reason I put a normal Si diode with A to OSCin and K to /MCLR in
ICSP-capable designs ... the pwrte timer does the rest (even if off it
takes longer for the crystal to start than the rise time of even the
slowest /MCLR driver).

Peter

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