LCD panel init problems
Bob Blick email (remove spam text)
On Wed, 31 Oct 2001, Jeff DeMaagd wrote:
> I have a 2x20 character LCD panel that doesn't seem to want to init properly
> on some power-ups. We do have it and some 4x4 capacitive keypad circuitry
> connected to the main board by a fairly scandard type 6" / 15cm long ribbon
> cable. Sometimes it powers up and inits properly, sometimes it displays
> garbage. Once it starts fine, it runs fine until shutdown. Once garbage,
> always garbage until shutdown. A power cycling might change the situation,
> but that is not guaranteed.
Usually the times I have those problems is when I don't have big enough
delays - either before first talking to the display(give it time to reset)
and between each command(some commands take a long time to execute).
Hope this helps.
http://www.piclist.com hint: The PICList is archived three different
ways. See http://www.piclist.com/#archives for details.
In reply to: <009901c16253$3871bc30$efaa20d0@heracles>
See also: www.piclist.com/techref/lcds.htm?key=lcd
You must be a member of the
piclist mailing list
(not only a www.piclist.com member) to post to the