Re: [Flashforth-devel] LCD-Shield für Arduino UNO

[Brian K N. <bkn...@gm...>]

I found using the hitachi lcd datasheet and the instructions on how to
initialize the lcd by instruction the most useful thing. Essentially you're
putting bit patterns (instructions) on a port in the uno board using c! and
strobing the the enable pin setting it high and  low using mset and mclr.
If you find a youtube video where people use switches and manually bring up
the lcd you'll understand the process better. In the end I think its a
useful process to write your own driver for the board because there is
quite a bit of functionality that is glossed over by many tutorials geared
toward arduino ide users.
viel Glück
brian-in-ohio

On Fri, Mar 24, 2023 at 7:26 PM Peter Jacobs <p.j...@uq...> wrote:

> In case you find it useful, there is an updated HTML rendering of that
> tutorial at
>
> https://htmlpreview.github.io/?https://github.com/pajacobs-ghub/pajacobs-ghub.github.io/blob/main/flashforth/ff5-tutorial-guide.html
>
> The source is in ASCIIDOC.  The final section (number 16) is the example
> of the 44780 LCD driven in 4-bit mode.
>
> Cheers,
> Peter J.
> ------------------------------
> *From:* Peter Höhne <p.h...@we...>
> *Sent:* Saturday, 25 March 2023 5:14 AM
> *To:* fla...@li... <
> fla...@li...>
> *Subject:* [Flashforth-devel] LCD-Shield für Arduino UNO
>
>
> Hallo liebe Forthfreunde,
>
> ich wollte FlashForth neben Programm-Monitor auch via LCD-Anzeige auf dem
> UNO laufen lassen,
> aber leider habe ich dafür kein einfaches Source-Beispiel im WEB gefunden,
> -> ausgenommen das Beispiel für PICDEM2 + board im "
> *ff5-tutorial-guide-2014-05-12.pdf*".
>
> Dieses habe ich als Vorbild hergenommen und "schlecht und recht" versucht
> für den UNO umzusetzen.
>
> Es ist noch nicht fertig, funktioniert jedoch bis auf die Tastenabfrage
> ganz gut (nur beim LCD-Shield).
>
> *Fragen:*  - gibt es fertige LCD-Beispiele im WEB, die ich nicht
> gesehen/gefunden habe ?
>                 - hat jemand schon separate Hitachi-44780 LCD's  (1/2/4
> zeilen via 4 Datenpins angesteuert?
>
> viele Grüße
> Peter
> PS:  Vielen Dank an Mikael für die Hilfe  --> *' lcd_emit 'emit !* .
>
>
> -------------------------------------------------------------------------------------------------------------------
>
> Hello dear Forth friends,
>
> i wanted to run the FlashForth besides program monitor also via LCD
> display on the UNO,
> but unfortunately I didn't find a simple example for this in the WEB,
> -> except the example for PICDEM2 + board in "
> *ff5-tutorial-guide-2014-05-12.pd*f".
>
> I have taken this as a model and tried "badly and fairly" to implement for
> the UNO.
>
> It is not quite finished yet, but works quite well except for the key
> query (only for the LCD Shield).
>
> *Questions:* - are there ready LCD examples in the WEB, which I have not
> seen/found ?
>                      - has anyone already separately Hitachi-44780 LCD
> (1/2/4 lines via 4 data pins controlled?
>
> many greetings
> Peter
> PS:  Many thanks to Mikael for the help -->* ' lcd_emit 'emit ! *.
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