ANSI or VT100 driver for a serial LCD?

Aug 17, 2006 6 Replies
C

I have a 2x24 character HD44780 LCD that I want to use as a mini-terminal.



Basically I need something that can scroll up and down, position the cursor at a specific place, and ideally do some emphasis (like reverse video or underline.)



I've googled all over the place, but I haven't found anything promising...



I recall seeing something like that a long time ago, but I can't find it.....



Anyone know of anything like this?



Thanks,


--Yan


Vote
Twitter Facebook LinkedIn
J

[snip]

Can the lcdproc code

formatting link
be adapted to suit your needs?

Vote
Twitter Facebook LinkedIn
P

...

Would it work to copy the ansi-generic entry in /etc/termcap (you'd have to verify the other tc values, of course, commenting out those that aren't applicable) to something like:

ansi-24x2|HD44780 LCD terminal:\ :am:xo:\ :co#24:li#2:tc=vanilla:tc=ansi+csr:tc=ansi+cup:\ :tc=ansi+rca:tc=ansi+erase:tc=ansi+tabs:tc=ansi+local:\ :tc=ansi+idc:tc=ansi+idl:tc=ansi+rep:tc=ansi+sgrbold:\ :tc=ansi+arrows:

and then run an mgetty in /etc/inittab using that terminal spec. on ttyS[?] (assuming it's connected to a serial port)?

Vote
Twitter Facebook LinkedIn
P

...

Sorry, that should be mingetty or getty.

Vote
Twitter Facebook LinkedIn
C

I found it shortly after I posted.... But it is overkill for my needs.

I really just need a small subset of ANSI so I think I'll just roll my own....

--Yan

o__ ,>/'_ o__ (_)\(_) ,>/'_ o__ Yan Seiner, PE (_)\(_) ,>/'_ o__ Certified Personal Trainer (_)\(_) ,>/'_ o__ Licensed Professional Engineer (_)\(_) ,>/'_ Who says engineers have to be pencil necked geeks? (_)\(_)
Vote
Twitter Facebook LinkedIn
T

Its not hard. Good luck.

Vote
Twitter Facebook LinkedIn
S

Just generate yourself a terminfo file and you are done. This way you will be able to use ncurses or slang library for programming.

I did one for Matrix Orbital 202-25 and 204-25 some time ago:

matrix202|Matrix-Orbital LK-202-25 LCD module, am, cols#20, lines#2, clear=\376X, cnorm=\376J\376S, civis=\376T\376K, cub1=\376L, cuf1=\376M, cup=\376G%p2%{1}%+%c%p1%{1}%+%c, home=\376H,rs2=\376C\376Q\376S,

matrix204|Matrix-Orbital LK-204-25 LCD module, am, cols#20, lines#4, clear=\376X, cnorm=\376J\376S, civis=\376T\376K, cub1=\376L, cuf1=\376M, cup=\376G%p2%{1}%+%c%p1%{1}%+%c, home=\376H,rs2=\376C\376Q\376S,

Have a look at terminfo(5) and tic(1) for details. I don't know the appropriate commands for your Display, so I'm unable to setup a terminfo file for you.

Sven

"linux is evolution, not intelligent design" (Linus Torvalds) /me is giggls@ircnet, http://sven.gegg.us/ on the Web
Vote
Twitter Facebook LinkedIn

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required