On Mon, 25 Jan 1999 11:13:47 -0800, you wrote: >I've had bad luck using any of the PORT C pins for pot measurement. They >are schmidt trigger when inputs, but the thresholds vary depending on the >other pins. I have not tracked down the exact things that do it, but it >could be the state of the other pins or the TRIS settings, but I now >avoid PORTC and any schmidt trigger pins for that use. > >I've had good luck using any pins on PORT B, and it seems stable between >chips, too. > >-Bob Which device series? - I'm using a 16C55, which unlike the CXX's shouldn't be that different from other ports. Fortunately I can dedicate the whole of port A to the 'analogue' stuff as I'm reading a couple of channels.