PIC Dumb Terminal

Started by Charles Douvier July 14, 2003
I am sure anyone who has been around for at least a months has an idea of
most of the projects on piclist.com. I was poking around serial IO and came
across the PIC Dumb terminal and thought of it as a great project. I would
like to have something that took rs232 from a pc and display it on a LCD
(44780 controller as I have a boat load of these). Then the easy part,
taking keypresses and sending it back to the pc.

My problem is I am really only setup for 18F series microcontrollers.. I
don't really want to buy a new programmer for one project.

Has anyone seen any good assembler code for a dumb terminal that wasn't
written in C (I don't have a C complier and worse off, I don't know C.) I
know ASM somewhat now so I don't mind porting code from a 16F part, but I
don't think I'm good enough to write the rs232 communications as most of the
projects out there are for 16F84's (no uart).

Anyone seen any thing? I'll keep banging away at google, but it doesn't look
like anyone has anything like this online.




App note AN744 (www.microchip.com) has the serial I/O routines for
the 18F series. Several, in fact. Download the app note and the
code - for some reason the code is separate in this app note.

Do a search at Microchip - you may find the rest. Also, never
overlook Google.

--- In , "Charles Douvier" <charles@k...>
wrote:
> I am sure anyone who has been around for at least a months has an
idea of
> most of the projects on piclist.com. I was poking around serial IO
and came
> across the PIC Dumb terminal and thought of it as a great project.
I would
> like to have something that took rs232 from a pc and display it on
a LCD
> (44780 controller as I have a boat load of these). Then the easy
part,
> taking keypresses and sending it back to the pc.
>
> My problem is I am really only setup for 18F series
microcontrollers.. I
> don't really want to buy a new programmer for one project.
>
> Has anyone seen any good assembler code for a dumb terminal that
wasn't
> written in C (I don't have a C complier and worse off, I don't know
C.) I
> know ASM somewhat now so I don't mind porting code from a 16F part,
but I
> don't think I'm good enough to write the rs232 communications as
most of the
> projects out there are for 16F84's (no uart).
>
> Anyone seen any thing? I'll keep banging away at google, but it
doesn't look
> like anyone has anything like this online.




Jal has both asynch serial lib and HD44780 lib.
And Jal is free...
http://www.voti.nl/jal

Wouter van Ooijen

-- -------
Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products