Grphic ldc dogm132-5

kartmanne · Joined: 02 Mar 2018 Posts: 31

HI,

I tried to use the EA DOGM132-5 display. I found the lib glcdEADOGM132x32.lib and included it.
Now, I don't know how to configure.

I used instead of the 132-32-lib: "glcdeadogm128x6.lbx"
If I use the lib "glcdEADOGM132x32.lib", the config statement accepts the "Graphlcd = 128 * 64eadogm", but this may configure the wrong pixel room. I cannot find a configure parameter for "132*32".

Cls works anyway, Pin assignment may be correct. But there doen't appear the Hello world in the upper left corner. Instead of the text there are random pixels over the whole display. But they disapear after about 200ms and the display is cleared.

Can someone please give me an info, how to use the EA DOGM132-5 Display?

This ist my code:

JC · Joined: 15 Dec 2007 Posts: 623 Location: Cleveland, OH

I am not familiar with that display, but...

Many displays require time to power up and initialize themselves.

For a test, for now, I would put a 2 Second delay after the power up, BEFORE any other code.

I would also put a 2 Second delay after the config command, BEFORE you then send commands to the display.

See if that helps, and then shorten the delays once it works, if that helps to solve the problem.

JC

kartmanne · Joined: 02 Mar 2018 Posts: 31

HI,

no, delays do not change the behavior.

Some time (years....) ago I used the EA DOGM128-6. There were no delays necessary.

Edit: Both use the same lcd-chip ST7565r

hmmm.

musterkonsument · Joined: 26 Nov 2005 Posts: 3 Location: Illertissen

Hi kartmanne,
i miss the fontdefinition. See Samples \ LCDGRAPH \ EADOGM132x32.bas
Musterkonsument

kartmanne · Joined: 02 Mar 2018 Posts: 31

HI,

setfont: Yes, that's it.

And thanks for proposing the \ LCDGRAPH \ EADOGM132x32.bas

I checked, now: There are only about 60% dirs and files in my BASCOM folder compared to the older version folders - and no samples dir. Don't know, why. I had some trouble to update from 2.0.8.3 to 2.0.8.5. The 2.0.8.5 doesn't recognize my full licence, so I use the former 2.0.8.3. May be within this trouble there went something wrong.
I copied all missing files and dirs in my 2.0.8.3 installation folder - and... hu... I found the EADOGM132x32.bas Smile

Sorry gents for your time.

kartmanne · Joined: 02 Mar 2018 Posts: 31

hI,

did some tests. There is a effect which makes me little bit nervous.
I connected the 132-5 to the STK500, using a atmega328p. The display is powered by a LDO3.3V which is powered by the 5V of the STK500.
The controlling signals (RST,A0,...) are connected via a "level"-shifter made with two Rs: signal-1k-display-2k-GND.

After programming the atmega with bascom avr - the display shows what is programmed. ok.
After pressing the reset button on the skt500 - the display shows what is programmed. ok.
But after alternating the main switch of the STK500 (incl. some waiting to let the STK500 power down) - the display is fully filled chars. I can see, that there will be the programmed Text sent, but the text looks like random pixels.

I used the sample 132x32.bas from the samples folder and adopted some ports because the A-ports of the 324p are not available on the 328p.

Do you know this effect?

If it depends on the STK500 - I can live with. But I'm afrait the same behavior will happen on my target electronics...

musterkonsument · Joined: 26 Nov 2005 Posts: 3 Location: Illertissen

Hi,

why the second $lib "GLCDSED.lib"?
I use no STK500.

CU
Hans-Werner

kartmanne · Joined: 02 Mar 2018 Posts: 31

HI,

doesn't matter if the 2nd lib active or not. This was just a trial. Effect is the same.

kartmanne · Joined: 02 Mar 2018 Posts: 31

HI,

step forward....

Looks like it is a problem with the font8x8. If I use the my6_8.font - the effect is not there. Same with my16x12.font. I tried some TT-Fonts - effect occurs.

I try to research for the reasons. If I can solve, I'll post here. But I'll not spend too much time...

Evert :-) · Joined: 18 Feb 2005 Posts: 2163

Try to increase your stack.