Happy Xmas All,
               Just for once, not a problem mail!
I've recently been using Bourns' new ACE-128 rotary encoders.
(For those of you who haven't meet them, info is on my web page
shown below)
These give out a type of 'grey-code' to give the position of the
encoder. Bourns say to just use a 256 byte look-up table, but as
that can be upto 1/2 a PIC's memory, I've writen decoder routines
that are shorter (at the expense of speed). In case anybody
else out there is using these beasties, I stuck 4 of the routines
on my web page.

    For further info, or to see the routines, the web page is:-

http://ourworld.compuserve.com/homepages/steve_lawther/bourns.htm

    If anybody uses any of the routines, and / or improves on the
code size, for the speed specified, could they let me know - I've
spent the best part of a week trying to optimise them, but I isn't
perfect!
        Hope this helps somebody,

                Steve Lawther

PS - I'm not in any way linked with Bourns, and the ACE-128 is
     not a solution to the world problems - but it has its uses!

    *** Opinions are my own, not my employers, nor clients ***
    ***              For More PIC stuff, see               ***
http://ourworld.compuserve.com/homepages/steve_lawther/ucindex.htm