Jinx wrote:
>> so to test it I have a 5K pot connected between 5V and ground
>
> The maximum recommended pot is 2k5 for the 18F452, not 10k
> as on previous families. I can't say if anything else is wrong with
> your set-up but you should correct this first

The maximum recommended input impedence is 2.5Kohms.  A 5Kohm pot has its
highest impedence when the wiper is centered.  This makes a divider with two
2.5Kohm resistors, which has an impedence of 1.25Kohms.

You can use up to a 10Kohm pot.


*****************************************************************
Embed Inc, embedded system specialists in Littleton Massachusetts
(978) 742-9014, http://www.embedinc.com

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body