hd44780 vs MO

davesaudio · Post by **davesaudio** » Sat Aug 30, 2003 9:10 pm

I'm somewhat familiar with hd44780 displays.
Considering using an MO display for an app.
questions: does the MO take care of all character counting and line wrapping?
if it is a 20 character display can I just keep sending characters (21, 22 etc) and have them wrap to the beginning of the next line? no address discontinuity etc? does this apply to scroll as well?
is scroll left or right a toggle type command- send only once vs preceeding each charcter?
any docs with more "meat" in them? SDK?

Miles · Post by **Miles** » Wed Sep 03, 2003 11:38 am

Hello...

If you take a look at our manual, for say a LK202-25 (2x20 character LCD) you will see the appropriate command set that is established for the unit and how easy it is to implement these preferences. The manual will give you the "meat" you are looking for! If you have any further questions, feel free to post.

www.matrixorbital.ca

davesaudio · Post by **davesaudio** » Thu Sep 04, 2003 7:38 am

ok, I did read couple of MO manuals before I posted but have now looked at the one you specified.

Taking a stab at what I'm reading/misreading:
(since you guys feel it is very clearly documented)

1)display power up default is wrap enabled- thus characters will wrap
from line to next line as required
- if wrap disabled then never progresses to next line

2) scroll is a toggle type control - issue the command and
scrolling will begin but only once the display is full?,
ie: 40'th character on a 2x20?

Post by **Henry** » Thu Sep 04, 2003 3:03 pm

davesaudio wrote:ok, I did read couple of MO manuals before I posted but have now looked at the one you specified.

Taking a stab at what I'm reading/misreading:
(since you guys feel it is very clearly documented)

1)display power up default is wrap enabled- thus characters will wrap
from line to next line as required
- if wrap disabled then never progresses to next line

Some will, some will not. This is dependent on the size of the display. DO not count on the line being infinite long

2) scroll is a toggle type control - issue the command and
scrolling will begin but only once the display is full?,
ie: 40'th character on a 2x20?

yes, if you line wrap and scoll on, if they are both on, the display will scroll everything up leavig the bottom line for the new text.