--- In MuRaT KaRaDeNiZ <> wrote:
>
> Hello,
>
> If your LCD carries a HD44780 controller, you can use the
character LCD in 4bit mode, and drop the necessary I/O count by 4.
>
> Regards
>
> Murat Karadeniz
> http://www.onlinefavbar.com/mukas/
>
>
> jschick333 <> wrote:
> I'd like to attach a 2X24 character LCD to the TS-7400
(the one TS
> sells) but I'm short a couple of DIO lines. I was going to drive the
> LCD using 11 DIO lines (the same way its done on the TS-7200) but I am
> using the GPBUS for some other things and therefore don't have enough
> DIOs.
> Is it possible to use the GPBUS on the ts-7400 to drive the LCD?
>
>
>
>
>
>
> ---------------------------------
> Do you Yahoo!?
> Everyone is raving about the all-new Yahoo! Mail.
>
Thank you for the suggestions Peter and Murat.
I've just started familiarizing myself with CPLDs but don't have any
real experience with them. I was thinking about trying to do address
decoding and driving the LCD using a CPLD....maybe I'll give it a shot.
The LCD does have a HD44780 compatible controller so I could use it in
4 bit mode and probably have just enough DIO lines from the 7400. If I
use a CPLD for address decoding among other things would it be best to
use the CPLD to drive the LCD or just use in it 4 bit mode with the
7400's DIOs?
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