RE: [Gumstix-users] PDA LCD

[Erik D. R. <eri...@ce...>]

Thank you. I appreciate the quick reply. The pinout you showed was my =
first guess, but not quite certain about the CL1 and CL2 lines. This is =
a ton of good information.
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Any chance you worked with this LCD before? My coding abilities are not =
as proficient as they should be, especially when we are talking about =
this kind of task.

________________________________

From: gum...@li... on behalf of Joel =
Winarske
Sent: Tue 9/20/2005 9:50 PM
To: gum...@li...
Subject: Re: [Gumstix-users] PDA LCD


Hardware goes something like this:
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LCD Pin 11 - around 23.5V DC (contrast voltage)  Something like this =
could be used with a trim pot, and samples are free:  =
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2312/ln/
Tie E/L_ON to an open I/O pin to control backlight
Connect Vdd and EL_Vcc to 3.3VDC, and tie Logic ground pins =
appropriately.
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 L_PCLK -> CL2
 L_FCLK -> FLM
 L_LCLK -> CL1
 L_BIAS -> M
 L_DD(0) -> D0
 L_DD(1) -> D1
 L_DD(2) -> D2
 L_DD(3) -> D3
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The UCB1400 on the Audiostix can be used to interconnect the touch =
screen signals.
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For hardware hookup reference see the design guide, section 3.2.
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The software side involves setting up the PXA255 LCD controller to =
output the proper timing to meet timing specified in the LCD data sheet. =
 Refer to developer manual.
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http://www.intel.com/design/pca/products/pxa255/techdocs.htm =
<http://www.intel.com/design/pca/products/pxa255/techdocs.htm>=20
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=20
Joel Winarske

	----- Original Message -----=20
	From: Erik D. Rodriguez <mailto:eri...@ce...> =20
	To: gum...@li...=20
	Sent: Tuesday, September 20, 2005 8:34 PM
	Subject: [Gumstix-users] PDA LCD
=09
=09
	Ok. I pulled apart my old Nino PDA. It has a UG-24U01 screen. Did a bit =
of looking on the internet and found the specs for it.  =
http://www.earthlcd.com/pdalcd.htm=20
	=20
	Now that I have this information, how difficult would it be to get this =
working with the Gumstix?