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German umlauts
http://forum.lcdinfo.com/viewtopic.php?f=17&t=1053		 Page 1 of 1
Author:  tekbaron [ Sat Feb 12, 2005 22:01 ]
Post subject:  German umlauts
Hello Henri,

I will try to write a plugin for the nebula DigiTV Software (http://www.nebula-electronics.com/)

Now I have the problem that the German umlauts (äöüÄÖÜß) not shown on my Display.

Any Idee why ?, and how i can fix it ?

mfg Tek
Author:  Syridian [ Sun Feb 13, 2005 6:27 ]
Post subject: 
Are these characters actually in the Character ROM?
Author:  tekbaron [ Mon Feb 14, 2005 23:28 ]
Post subject: 
Sorry im a beginner in programming the lcd and c++. Can you please explain what you mean ?
Author:  Syridian [ Mon Feb 14, 2005 23:56 ]
Post subject: 
LCD's that have a text mode, that is the ability to send ascii text data to, have a built in character ROM, or memory storing the LCD font as it were. If your LCD doesn't have the umlauts in the character ROM, then you won't be able to display them other than through graphical representation of them.

Or.. you could get technical, and re-write the drivers so that they can write to the custom character space. ;) But thats beyond both of us for now. :)

So.. Basically, find out what is in your character ROM, see if it has these characters first. To do that, you need the full datasheet for the controller on your LCD. Or, find out what controller you have and repost in here, and maybe I can find the time to go through it for you, but it might actually be quicker for you to do it yourself. And, you'll learn much more doing it that way. ;)
Author:  tekbaron [ Tue Feb 15, 2005 20:10 ]
Post subject: 
Hi Syridian,

Thanks for the Help, i have look at the Side where i buy the lcd, but can´t find infos for the Character ROM.

http://www.rebach-online.de/shop/product_info.php?cPath=63_64&products_id=5015081

Please can you Help with the Infomations on the side.

mfg Tek
Author:  Henri [ Wed Feb 16, 2005 0:12 ]
Post subject: 
The problem here is that usually even if the character generator rom would include these characters they are not in the same place in the table as in ascii. And as LCDInfo (or better would be to say the drivers as the character mapping is display dependent) doesn't yet do this kind translation / mapping they are not shown correctly. I need to work on this.
Author:  tekbaron [ Sun Feb 20, 2005 23:09 ]
Post subject: 
THX for the answer, than i will wait for the fix :wink:
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