At 02:02 AM 10/1/02 -0400, you wrote:
>First time using an LCD (Jameco/Ampire 2x16 unit), and just
>experimenting a bit for now.  If you're curious, datasheet
>is at: https://www.jameco.com/Jameco/Products/ProdDS/171715.pdf
>
>I'm controlling the LCD manually (for now) with 11 DIP switches.
>Sounds painful I know, but it's not that bad... if it works.
>Which it doesn't exactly.

You need to debounce the E input, which is pin 6 on the
typical HD44780-based module. You can use an RC circuit with
a Schmitt trigger inverter, for example. All the other inputs
can go directly to the switches as you have them, as they
are level sensitive rather than edge sensitive.

>Another Q... I guess CG stands for character generator, but
>why is there an operation to write to CG RAM?  What's the
>purpose of that?  Can I create my own fonts or something?

Do a google search for "LCD FAQ". All will be answered.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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