I hope "leaving the input alone" don't means to leave an unused input to float... If yes, then may appear problems on the used input, but not allways. Vasile On Tue, 2 Apr 2002, Micro Eng wrote: > Drew > > Have you found that even leaving the input alone, there is enough 'noise' > that if you do a compare of one reading to another, say seperated by a > minute or so, that the LSB's are changing? I was looking at doing a > comparison so if the input had changed, to reset and re-read the inputs, but > I'd have to mask off the lower nibble else the noise was getting in the way > of a real change. > > > >From: Drew Vassallo > >Reply-To: pic microcontroller discussion list > >To: PICLIST@MITVMA.MIT.EDU > >Subject: Re: [PIC]: A/D result trimming > >Date: Mon, 1 Apr 2002 20:38:40 -0500 > > > >You're right, of course, Olin. There IS an underlying equation for those > >values. It seemed too complicated, given all the floating point math that > >was used, but after working on it for a few hours tonight, I got it down to > >a reasonable equation within an error of only a few percent. > > > >Sometimes it just takes another person's view to point one in the right > >direction. I really hadn't considered working out the equation and figured > >the table would be simpler. Turns out that the opposite is true in this > >case. > > > >--Andrew > > > >_________________________________________________________________ > >MSN Photos is the easiest way to share and print your photos: > >http://photos.msn.com/support/worldwide.aspx > > > >-- > >http://www.piclist.com hint: To leave the PICList > >mailto:piclist-unsubscribe-request@mitvma.mit.edu > > > > > > > _________________________________________________________________ > Chat with friends online, try MSN Messenger: http://messenger.msn.com > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > -- 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