>Well, that is two of you (you and Olin) who are kind of >down on the project. :-( Since I have a lot of respect >for the opinions of you two, then most likely you are >right and I am wasting my time. Not necessarily. I suspect the problem is that Olin did not explain himself too well, and you have a certain amount of hump with him, as IIRC you have run-ins with him before. I believe Olin was attempting to point out that if you take earlier family pairs of chips where there is a 40 pin and a 28 pin in the same family, such as 16F877/16F876 and 18F452/18F252 then the 28 pin chip will match the pin out of the 40 pin chip reasonably well at some specific pin displacement. Not only that but these two chip pairs have what Microchip has regarded as a "standard pinout footprint" (or words to similar effect) such that it is easy to upgrade to a higher performance chip. Unfortunately they have not gone down the same route with the dsPic family, so attempting to do the pin conversion you want is not as easy as with earlier chip families, which means you will need to have a lot of jumper wires on your piggy back socket to make everything connect how you need it too. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist