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Author Topic: Blank touchscreen
adrigax
Newbie
Posts: 13
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Post Blank touchscreen
on: December 24, 2013, 13:33
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Hi everyone,

I'm setting up my beautiful Polargraph and obviously experimented some issues. I managed to solve most of them now but a new one appeared.

The touchscreen is all white and I don't know what to do about it. It seems that it "knows" where the buttons are because when I touch the place where the "Pen up / down" should be, it actually makes the pen lift servo move up or down! So it's like everything's going well but, no image on the screen...

Do you know what I could do about it. I tried to install the firmware again but it makes no difference.

Thanks and merry Christmas !

Adrien
sandy
Administrator
Posts: 1317
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sandy
Post Re: Blank touchscreen
on: December 24, 2013, 14:57
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Hey Adrien, usually a symptom of using the wrong firmware - which one are you using, and are you loading from a hex file or compiling from source?

We know it _has_ worked in the past, so it has to be a software issue at least 🙂

sn
adrigax
Newbie
Posts: 13
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Post Re: Blank touchscreen
on: December 24, 2013, 15:51
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Hi Sandy, you're probably right.
I'm not using the hex file because I'm on a Mac and I can't make Xloader work but I see some people made it work. I will try again 🙂 If I'm desperate I'll cry again here 😉

Thanks
adrigax
Newbie
Posts: 13
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Post Re: Blank touchscreen
on: December 24, 2013, 16:00
Quote

OK yes I got it. I wasn't using the proper command so I uncommented #define LCD_TYPE ITDB24E_8 instead of #define LCD_TYPE ITDB22

Thanks again
sandy
Administrator
Posts: 1317
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sandy
Post Re: Blank touchscreen
on: December 24, 2013, 20:19
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Ha, good news, that was going to be my next suggestion 🙂

sn
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