Jumbled Graphics on 240 x 128 LCD

MadMax · Posted: Thu Jul 05, 2007 5:42 pm Post subject: Jumbled Graphics on 240 x 128 LCD

Hi All,

I've been searching through the forums trying to find an answer to a problem I'm having with my 240x128 T6963 display. This thread:
(http://www.mcselec.com/index2.php?option=com_forum&Itemid=59&page=viewtopic&t=785&highlight=showpic)
describes my problem very well. However, in this thread, the author seems to describe his showpic problem as being a universal problem with the showpic command. I'm only getting some of my graphics garbled when I use the showpic command. Additionally, if I add code to program, graphic A will become non-garbled, and graphic B will become garbled. Adding more code will "de-garble" graphic B, and garble graphic C and so on.
The above thread doesn't seem to have a resolution... well, to be honest, I don't understand the resolution that the author came to at the end of the thread.

Greatly appreciate any help.

Best Max

MadMax · Posted: Thu Jul 05, 2007 7:15 pm Post subject:

Also,

Is the help file instructions still valid, describing the multiples of 8 for picture size and location? Especially considering that I am running in Mode 6?

Plons · Posted: Thu Jul 05, 2007 10:27 pm Post subject:

Two things popped up in my mind:
1. Timing. That could be an issue. See the thread http://www.mcselec.com/index2.php?option=com_forum&Itemid=59&page=viewtopic&t=4417
2. If you use the graphics converter, make sure your bitmap you wish to convert is 256 color, and yes: use multiples of 8 for the picture position

Kasch · Joined: 18 Jun 2005 Posts: 48

Evert :-) · Joined: 18 Feb 2005 Posts: 2156

Same problem here, graphics are sometime's garble.
After 1/2 Sunday testing i noticed the the $Sim was still in the list.
Stupid error from me. Embarassed

Now we have perfect graphics.

Plons · Posted: Sun Jul 08, 2007 1:33 pm Post subject:

Kasch wrote:

Kasch · Joined: 18 Jun 2005 Posts: 48

did you ever has been a success of this on a TC6963 ?

Plons · Posted: Sun Jul 08, 2007 8:31 pm Post subject:

Kasch · Joined: 18 Jun 2005 Posts: 48

Plons · Posted: Sun Jul 08, 2007 8:54 pm Post subject:

Kasch wrote:

Kasch · Joined: 18 Jun 2005 Posts: 48

SteveN · Joined: 08 May 2007 Posts: 30 Location: Charlottesville, VA

DToolan · Posted: Sun Jul 08, 2007 11:18 pm Post subject:

Here is a suggestion, Kasch... with your attitude, you will end up figuring this out yourself. How's that for some help? You will get little assistance here with your attitude.

And you know what else? You don't have to share a solution afterwards either. We can do that ourselves. Then later you can come here and data mine for answers.

Kasch · Joined: 18 Jun 2005 Posts: 48

Don't spam this thread full,please. If you have REALLY HELP* than post it. On other side don't post anything, thank you!

* not suggestion, only real facts.

Plons · Posted: Mon Jul 09, 2007 1:02 pm Post subject:

Thanks for the support, SteveN and DToolan.

For those who are still encountering jumbled graphics: check your version of BascomAVR.
In BascomAVR 1.11.8.7, GLCD.lib has extra delays built in for clock-frequencies higher than 12 MHz.
In BascomAVR 1.11.8.3, GLCD.lib isn't equipped with these extra delays.

Plons