> My problem is that I have a single three-digit non-multiplexed
> display (actually, quite a few of them) with a SINGLE common.  It
> would be nice to drive it with a 16c57 (20 I/Os) and still have a
> pin or two left over for inputs.

What's the problem? (apart from using a C PIC, shudder!)

When (timewise) you don't drive the segments and make sure the commons
are either inputs or are at the level that makes the diodes block you
can use the poins that are connected to the segments as inputs.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
 

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist