> MCLR was 8v regardless of a chip being there or not (I had a 10K
> resistor to Vcc on the breadboard).  I tried a different PIC (both a
> 16F648 and a '628-4) in the Wisp, and now I'm getting 13V on MCLR,

note: don't call the thing WISP, that's a different design.

strange, maybe one pin of the original PIC was dead or not connected
properly.

> but
> am running into protocol problems.

That's not a protocol problem, it indicates that the writing of the very
first address failed. The programmer did recognise the traget chip, so
it is basically working.

Did you by any chance omit a decoupling cap? 100nF + 10u or higher is
realy required, both at the target and at the PIC in the Wisp628.

Wouter van Ooijen

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