Using the LCD Display on the XMEGA A3BU Xplained board

MAK3 · Joined: 24 Sep 2010 Posts: 449 Location: Germany

Hello,

here is an example of how to use the LCD Display on the XMEGA A3BU Xplained board:

Based on the library from here:
http://www.mcselec.com/index2.php?option=com_forum&Itemid=59&page=download&id=2447

I made an example which I have tested in hardware:

Meister · Joined: 27 May 2010 Posts: 319

Thanks,
Will graphics (like point, line etc.) work with the library?)
regards, Meister

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

no. the reason is that the manufacturer of the LCD did not allow the user to read the data. I do not understand why they do not simply add a command to read out the data.
Anyway, when you can not read the memory, you can not read a byte, alter a bit, and write the byte back. setting a pixel would require this.
A workaround is to use the processor memory as a buffer and work on that. But it is a waste of memory. For a smaller display that might not be a problem. 128x32 for example requires 4096 bits = 512 bytes. 512 is still a lot of sram IMO.

Jerry · Joined: 25 May 2004 Posts: 40 Location: New York

Thanks for good information MAK3.

I have a couple questions.
Where did this library come from?
$lib "glcdeadogm128x3.lib" ' Lib for the XMEGA A3BU-XPLAINED Display

I am using BASCOM-AVR 2.0.7.8 and I do not see this library.

Where did you get, or how did you create?
$include "font8x8.font"

Thank you,
Jerry

Jerry · Joined: 25 May 2004 Posts: 40 Location: New York

Never mind. Got it.
Jerry

Meister · Joined: 27 May 2010 Posts: 319

There is a recent nice graphics application for the XMEGA A3BU-XPLAINED board:
http://bascomforum.de/
Scroll down to the last post (#159).
Regards, Meister

Jerry · Joined: 25 May 2004 Posts: 40 Location: New York

Thank you very much Meister.

jynx · Joined: 28 Apr 2016 Posts: 8

Where did you find the file "font8x8.font"? I cannot find it in the Bascom folder. Thanks!

jynx · Joined: 28 Apr 2016 Posts: 8

Where did you find the file "font8x8.font"? I cannot find it in the Bascom folder. Thanks!

Meister · Joined: 27 May 2010 Posts: 319

jynx · Joined: 28 Apr 2016 Posts: 8

Awesome! Thanks.

Paisley · Joined: 04 Jun 2013 Posts: 4

Hi,

is the glcdeadogm128x3.lib library still available somewhere? The link just gives an invalid .zip and I would looooove to use the LCD on my Xplained board..

Thank you and kind regards!

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

It comes with BASCOM-AVR, you find it in the LIB folder.

Paisley · Joined: 04 Jun 2013 Posts: 4

Negative, I downloaded the recent version of BASCOM to check but it is not there. If you have it, could you upload it please? That would be really really helpfull for me Smile

I can see glcdEADOGM128x6.lib and other libs, but the one I need is not there.

Thank you and kind regards!

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

The file is there.
This forum is not intended to upload normal system files from BASCOM. The reason is simple : if we change the files we have to deal with them on the forum as well.