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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

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Old 04-13-2011, 04:10 AM   #1
mocugo
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Registered: Apr 2011
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Mini2440v2 development board 3.5" lcd problem


Hi,
I recently bought mini2440v2 development board with 3.5" lcd. Board came with wince6.0 installed and it's working properly. I installed linux kernel image to the board. When I boot it, console is okey on the hyperterminal but image on lcd is not stable (always turning). I tried different kernel images (zImage_N35, zImage_T35, zImage_X35) but results are same.

Information at the back of lcd is:
LY-TFT-35-S001
LY-TFT3.5-001
101025 SKR
TKRBLW-283B-101026

Does anybody know how can I fix this problem?
 
Old 04-13-2011, 05:24 AM   #2
ravi_chobey
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Thumbs up

Is it turning off?

there might me loose connections?

I am also having the same friendlyarm board which is working fine.

Ravi
 
Old 04-13-2011, 06:57 AM   #3
mocugo
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No, it's not turning off. it's oscillating. There is a vibration on lcd and it's hard to recognize linux logo. I installed zImage_N43 (for 4.3" lcd) kernel from www.friendlyarm.net then boot it.
This time, lcd is stable but defined lcd dimensions is not compatible. Qtopia is not fit in lcd correctly.
I have to use one of the images: zImage_N35, zImage_T35, zImage_X35 according to dvd (came with board) and friendlyarm.net

I think, 3.5" lcd on my board is a new type and it's not compatible with kernel images mentioned above
 
Old 04-14-2011, 02:27 AM   #4
ravi_chobey
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you have to look into the source code from where that zImage is developed.There might not be
support for the LCD which you are having. Let me know the LCD which you are having.

Else, you could write or modify the device driver which is there in the source code.

Ravi

Last edited by ravi_chobey; 04-14-2011 at 03:22 AM.
 
  


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