Mike Harrison wrote: > > - Does the built-in serial require a +/-12V supply? Or > Usually. > > does it generate +/-12V (like a MAX232 for example)? > > If I need to supply it, and decide not to use serial > > comms, then can I just ignore it? > Probably - the only possible issue I can think of may be to do with > continually asserted ring interrupts. Not familiar with ring interrupts. I don't use serial at all, should I be able to get away w/o supplying 12V at all, or are you suggesting that the ring interrupts require 12V in it's "dormant" state? > >Anything else I'm missing? > There may be things that use the 12V rail to get a clean 5v supply, > but 8v or so ought to do here. Probably most likely on audio or video > cards Hmmm... never thought of this. Will have to look at the regulators on the board (when I get one). Thanks, -Neil. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads