Lpc2000

Thanks for your comments, Bob.  I was actually thinking about the 
FPGA controller route, since I'm already using ACTEL A54SX's on 
similar products...

http://www.kupercontrols.com/knode02.jpg

Been looking at the Optrex F-51447 product, which seems pretty 
interesting and costs ~$60 @ 100 pieces...

http://www.optrex.com/SiteImages/PartList/SPEC/51477ade.PDF

I assume I can get away with a single buffer of display RAM just by 
not clocking the display when I'm writing to the RAM, thereby 
avoiding display glitching and conflicts with the LCD data reads.  I 
assume there's no visible artifact caused by starting and stopping 
the display clock, does anybody know different?

Bill T.
http://www.kupercontrols.com




--- In lpc2000@yahoogroups.com, <bobengle@b...> wrote:
> 
> the epson sed series lcd controllers would work except they require 
the use of a wait pin to sync the external bus. the only part which 
worked on 8080/6800 busses has been lifetime buy'd.
> 
> most 320 by 240 parts require 4 data lines, clock, line and frame 
pulses, with the pixel data being shifted by the clock.
> 
> i am rolling my own using a $6 actel fpga, and a $1 static ram. i 
plan to use a spi interface so the part
> can be used with any processor. simple circuit to implement
> 
> also found some nice cog modules with integrated el backlight and 4 
wire touchscreen for under $40
> 
> bob engle
> embedded soutions
>   
> > 
> > From: "tonalbuilder2002" <twentiethwave@h...>
> > Date: 2005/03/06 Sun AM 12:38:03 EST
> > To: lpc2000@yahoogroups.com
> > Subject: [lpc2000] LPC2000's and Graphic Displays
> > 
> > 
> 
> 
> 
> [Non-text portions of this message have been removed]