Be careful with the Midrange reference manual.  I wasted way
more time than I'd like to admit on an A/D problem because of
an error in that doccument.

For those who are interested, the reference manual states that
bit 5 of ADCON0 controls ADMF (left or right justification of
the conversion result).  It is in fact, bit 7.  The 16F877
datasheet gets it right.

By all means, read the reference manual.  But when you start
coding, use the write-up for the specific PIC that you are
using.

Andrew


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---- On    , Olin Lathrop (olin_piclist@EMBEDINC.COM) wrote:

> >>
> The 16F872 doc references "PicMicro Mid-Range MCU Family
Reference
> Manual (DS33023)" for more info on how to use the A/D
converters.  Tried
> microchip's website but get an "overflow" on search.  Google
comes up
> with nothing.  Anyone know where I can get this doc or other
tutorial on
> the A/D converter?
> <<
>
> I'm sure it's on the Microchip site.  Contact your local
Microchip
> office
> and ask them for a CD.  It is pretty much a snapshot of the
web site,
> including all the manuals.  It's nice to have for looking
something up
> quickly that you don't have a manual for.  Unfortunately they
don't
> update
> it often enough, so some of the newer stuff isn't there.  I
sorta
> remember
> the MPLAB 5.5 CD has a lot of manuals on it too, but I could
be wrong.
>
> > The datasheet itself is not too specific/descriptive.
>
> Actually it's quite good.  I wish everybody documented their
stuff as
> well
> as Microchip.  I've used the A/D successfully many times and
have never
> read
> the midrange reference manual.
>
>
>
****************************************************************
****
> Olin Lathrop, embedded systems consultant in Littleton
Massachusetts
> (978) 742-9014, olin@embedinc.com, http://www.embedinc.com
>
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