Re: Does anyone have experience interfacing a LCD display module to a cFP unit?

I'm assuming if its 8-bit parallel it is probably an HD44780 interface.
Those are quite common for small character-based LCD screens. While you
could hack up something to speak the correct protocol
(http://home.iae.nl/users/pouweha/lcd/lcd.shtml) using a digital output
module, you might have an easier time using a converter to convert the
HD44780 interface to a serial one. There are plenty of so-called "backpack"
devices that you connect one end to the HD44780 interface and you have a
serial connection on the other (check http://www.seetron.com/slcds.htm for a
popular one). Then by simply outputting characters over the serial line you
see them on-screen (along with special characters to do certain actions).
Given how cheap native serial LCDs have become though, you can probably buy
a new serial-based LCD for around the same price ($20-30) as the serial
backpack itself would cost.

Hope this helps,
Eric Gross

"jokerak" <x@xxxxxxxx> wrote in message
news:1135894435902-304744@xxxxxxxxxxxxxxxxxx
> Thanks for the response,
> Since my first posting I have found a little info about the Toshiba TLC -
> 501 displays (I crossed them to AND501GST/GST-LED) and they appear to be a
> parallel 8 bit device. Looks like I could use a DO-401 (16 bit digital
> output module)&nbsp;to set up the 8bit data plus the required enable, R/W
> lines.
> Thanks again for the help!
> Bruce


.