Having programmed well in excess of 100 devices (16F84, 16F8xx, 12F675, 12C50x, 16F7x, etc.) in the last few months with no failures i'd say that the programmer is pretty solid with respect to reliability BUT that is not to say that your analysis is incorrect. I will take your advice on board and be aware of the situation. Thanks very much. Nino. Spehro Pefhany wrote: > At 10:32 AM 1/9/03 +1100, you wrote: > >> The Warp13A programmed is not at fault as it is used to program other >> devices all day with no failures. Oh well, toss this one to a good fault >> analysis exercise. > > > Don't be too sure, neither your programmer nor the Picstart+ are > considered "production" programmers as they don't vary Vdd when > they verify. Without that, you could have marginally programmed > some units from some batches and not known about it. Perhaps they > will fail at high or low ambient temperature or after a period > of time. > > If you ask Microchip, they will tell you the same thing, BTW. > > Best regards, > > Spehro Pefhany --"it's the network..." "The Journey is the > reward" > speff@interlog.com Info for manufacturers: > http://www.trexon.com > Embedded software/hardware/analog Info for designers: > http://www.speff.com > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics -- ------------------------------------------------------ | Antonio (Nino) L. Benci | | Professional Officer, Electronic Services | | School of Physics & Materials Engineering | | Monash University | | email: electronic.services@spme.monash.edu.au | | T: 61 3 9905 3649. F: 61 3 9905 3637 | | M: 0414 924 833 | ------------------------------------------------------ -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics