connecting pico-SAM9G45-X to an LCD

Nov 02, 2011 3 Replies
L

Hi all



i need to build a system that includes this board

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datasheet here:

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to an LCD screen of size 15'' or 17'' with LVDS input (for example, this one:

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I do not want to use a VGA cable, but rather, build it as an embedded system


I wondered if you could help me. understand if I can connect the LCD output of the board to the LVDS input of the LCD.


In general, I'm willing to pay for work on this design



thanks very much! I really appreciate any help. I'm totally new to this and any help is blessed



Lior --------------------------------------- Posted through http://www.EmbeddedRelated.com
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R

I have one of those with the 4.3" display. Planning also to connect a larger screen, (10"/11" in my case.) Will take a look over the weekend and report back. (Just got power back after the last snow storm in the NE USA.)

-- Roberto Waltman

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L

Roberto - sounds good - thanks! looking forward

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U

liorm skrev 2011-11-02 13:39:

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It is not possible to connect it directly to an LVDS input of the LCD. You will need to have an adapter in between which converts the LV-TTL RGB signals to LVDS.

Something else you need to take care abourt is the pixel clock. I think that the SAM9G45 is limited to about 50 MHz. (You may want to verify this)

This LCD module needs a pixel clock between 50-80 MHz, so you are really at a border.

Someone needs to write a driver. The Atmel Linux LCD driver is fixed to 480 x 272

BR Ulf Samuelsson

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