Pulling a few things from the dark recesses of my memory:

Despite being an LF chip, maybe it needs 5V for programming? Or maybe it
cannot operate at 5V and needs 3.3V?

Also, is this one of those chips which had a low-voltage programming method
and needed a pin (called LVP?) pulled high or low to ensure proper
operation of the normal ICSP method?

Sean


On Wed, Jul 19, 2017 at 1:32 PM, Van Horn, David <
david.vanhorn@backcountryaccess.com> wrote:

> Still having no luck.
> I got some fresh F73 parts from Digikey, and the programmer looks like
> it's unable to communicate with the chip.
> Is there a wiring guide that covers this specifically?   I need a known
> working starting point.
>
> Sometimes, doing someone a favor is way more complicated than it looked.
>
>
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