> Wouter's dongle may be a better solution for this kind of chips. Still
> I think the ultimate solution (for off-line programming) is to change
> the Wisp628 design and control the Vdd-target.

There is no law that the simple dongle I show on my wesbite *must* be
used. You can use the same trigger signal to switch the Vdd to the
target, but maybe you would still need to a short to remove any leftover
charge. So no change to Wisp628 is required. But If I make a new design
I would indeed provide separate signals for switch-off and for shorting.

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
 

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