> The programmer has not worked since. I concede that the 
> problem might not be 
> the programmmer. What else should I be looking at?

Check my Wisp628 page: at startup it pulls down a certain wire. Connect
a LED + R to this wire to see if the PIC runs at all. If not you have
something (PIC, crystal, 5Volt, ...) dead in your circuit. Next get a
terminal emulator, short pins 2-3 at the far end of your serial cable
and see if you get an echo. Double check whether the echo disappears if
you remove the short. Next connect the cable, remove the max232 from the
Wisp628, make the appropriate short in the IC socket and check again.
(no need for 5V so far). Next put the max232 back, remove the 16F628 and
again make the appropriate short in the IC socket. This time 5V is
required.

Wouter van Ooijen

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

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