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Kalevi
Newbie

Joined: 28/09/2021
Location: Australia
Posts: 9

Posted: 11:16am 06 Oct 2021

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Hello all,

I have enjoyed building and using many Silicon Chip project over the years. Projects using MMBasic have been my favourites.

Now I have struck a problem. A while ago I purchased a completely assembled Maximite Plus Explore 100 with a 5 inch LCD MD050D, which online has references to ssd1963_5 and was preprogrammed with ssd1963_5 in the maximite plus.

I powered up Explore 100 and connected it to Terminal emulator. PRINT MM.VR gives me 5.02. SETTIME works fine.
PROBLEM, no display on the screen!

Touching the screen produces an error message:
Error: Touch screen not calibrated

OPTION LIST
OPTION COLOUR SCREEN ON
OPTION LCD PANEL SSD1963_5. LANDSCAPE. 48
OPTION TOUCH 1, 40, 39
OPTION SDCARD 47
OPTION RTC 67, 69

Screen details:
MD0505D
Backlight Control
Led A (not linked)
PWM_MD050D (linked)
Always on (not linked)

Following a hint I added letter A to the end of SSD1963 string. No effect.
I have run out of ideas. Should I purchase another screen, and which one?

Regards,
Mauri

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10611

Posted: 11:31am 06 Oct 2021

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Have you run the basic screen test?

GUI TEST LCDPANEL

You won't see anything on the screen unless you explicitly write to it.

In order to get the display to show edits etc. you need to set the

OPTION LCDPANEL CONSOLE

To get touch to work use

GUI CALIBRATE

phil99

Guru

Joined: 11/02/2018
Location: Australia
Posts: 2832

Posted: 11:55am 06 Oct 2021

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For the Micromite Plus Explore 100 you can get the user manual from geoffg.net. It contains instructions for calibrating the touch screen and sending text, images etc. to the display.
Try:-
GUI CALIBRATE
GUI TEST TOUCH
GUI TEST LCDPANEL
To see if anything happens.
Search this forum for your panel to see if anyone else has had problems with it.

Kalevi
Newbie

Joined: 28/09/2021
Location: Australia
Posts: 9

Posted: 12:37pm 06 Oct 2021

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Thanks for the input,

Already tried GUI TEST LCDPANEL and OPTION LCDPANEL CONSOLE.
Made sure the brightness was 100%, but it seems not only does the backlight not come on, I can't even see faint characters.
Nothing shows on the screen, no circles or test patterns. To calibrate the touch screen, it needs to actually display something so I can't even do that.
Nothing displays, but it does sense touch, which has me stumped.
Edited 2021-10-06 22:39 by Kalevi

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10611

Posted: 12:53pm 06 Oct 2021

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On the back of the display there are some links labelled backlight control. You should make the one labelled 1963_PWM

disco4now

Guru

Joined: 18/12/2014
Location: Australia
Posts: 1050

Posted: 10:16pm 06 Oct 2021

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Use this form of the option command, i.e. don't nominate LED-A parameter.
Set the display to use 1963_PWM as mentioned in post above,
by bridging the jumper for it and clearing the other two if they are bridged.

OPTION LCD PANEL SSD1963_5, LANDSCAPE

F4 H7 FotS F4xGT

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