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xkrja
Joined: 14 Sep 2006
Posts: 6
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 25 Sep 2008 13:19 lcd interface +tft |
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I don't know if this is the right place for this question.
I have a display with a 18-bit interface (6 bits per pixel). Can I interface this with a single board computer that has a 24-bit interface (8 bits per pixel I assume).
All ouput from the board matches the display input except the 2 extra bit per pixel.
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eziggurat
Joined: 15 Feb 2002
Posts: 226
Helped: 9
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29 Sep 2008 4:40 sbc lcd |
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| Yes you can. Look at the datasheet for the LCD panel and also the output of the SBC to match the signals. I use a SBC to interface to 12" LCD panel with no problem.
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xkrja
Joined: 14 Sep 2006
Posts: 6
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29 Sep 2008 7:36 Re: TFT LCD interface |
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Thanks for the reply. Can you tell me how you have connected the data signals? I mean, if the computer has 24-bit interface it has 8-bits per pixel. If you look at the pinout for the board it looks something like this (red data as example):
RED 0 (Least significant bit)
RED 1
RED 2
RED 3
RED 4
RED 5
RED 6
RED 7 (Most significant bit)
But how do you connect the display with the 18-bit interface then? Because it it only has 6 connections for red:
RED 0 (Least significant bit)
RED 1
RED 2
RED 3
RED 4
RED 5 (Most significant bit)
Should I connect
(SBC) (LCD)
RED 0 - RED 0
RED 1 - RED 1
RED 2 - RED 2
RED 3 - RED 3
RED 4 - RED 4
RED 5 - RED 5
Or should I connect
(SBC) (LCD)
RED 3 - RED 0
RED 4 - RED 1
RED 5 - RED 2
RED 6 - RED 3
RED 7 - RED 4
RED 8 - RED 5
Thanks!
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ug02048
Joined: 11 Oct 2004
Posts: 22
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01 Oct 2008 9:37 TFT LCD interface |
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(SBC) (LCD)
RED 3 - RED 0
RED 4 - RED 1
RED 5 - RED 2
RED 6 - RED 3
RED 7 - RED 4
RED 8 - RED 5
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eziggurat
Joined: 15 Feb 2002
Posts: 226
Helped: 9
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02 Oct 2008 22:50 Re: TFT LCD interface |
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why don't try both ways and see the results but I recall I tried
(SBC) (LCD)
RED 0 - RED 0
RED 1 - RED 1
RED 2 - RED 2
RED 3 - RED 3
RED 4 - RED 4
RED 5 - RED 5
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