On May 14, 2005, at 2:20 PM, William Chops Westfield wrote: > For instance, the original email header mentioned analog inputs. But > they > apparently have pullup (or pulldown) resistors. Any number of people > have > noticed that at least some of the layouts had these connected > incorrectly > for pullup resistors, but no one has mentioned yet that it's pretty > uncommon > to have ANY pullup resistors on analog inputs in the first place. > Pulldowns > might be more common, but still not really likely, IMO. Hmm. If the pullup resistors are replaced by a resistor SIP, the SIP is easily reversed to provide either pullup or pulldown capability (or it can be left off entirely.) And it's pretty easy to create a "SIP" from discreet resistors, too... BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist