lcd4linux-users — lcd4linux users

[lcd4linux] M50530 now working - and more ...

[Stefan K. <ste...@cr...>]

Hi Michael,
hi list,

good news for my M50530 display! My "soldering-iron-guy" mailed me, that
it's working great with a uclibc compiled lcd4linux 0.9.10 - he putted
it onto a beta fli4l [1] 2.1.4.

He asked me, if I want a special "magic" pcb wich is able to support the
displays needed voltages out of the ps/2 keyboard-port.

He will solder it alltogether and send me the "pnp" display back. I'll try
to get the scematics too and send it to you, if you want.

Are you able to visit the linuxday at nov. 15th in Dornbirn [2]? The
eisfair [3] and fli4l team will be there, showing easy made routers and
servers - most of them equipped with lcds.

Maybe there is a way to stay at our quarter from friday 14th till sunday
morning 16th near dornbirn to have more time to speak. Just let me know
what you are thinking.

Regards

Stefan

[1] http://www.fli4l.de
[2] http://www.linuxday.at
[3] http://www.eisfair.org

Re: [lcd4linux] wiring

[Michael R. <re...@eu...>]

Wiktor Zgodzin'ski schrieb:
> I have just lunch lcd4linux, It works *Yeaa*, I had to change
> HD44780.c to fit my winamp wiring. But i have some other things witch
> i can't do.

There should be absolutely no need to change something in the C code 
just to achieve different wiring.... Thatrs what the "Wire.*" entires in 
the config file are for!

> On 17 pin of printer port *AUTOFD* i have some other device. In 
> documentation I found that this pin is not required in normal work, 
> this is  only optional if I plan to use more then 2 LCD or with 2 
> controllers. The problem is that lcd4linux during starts sends some 
> signals to this pin.
Well, that depends on your wiring configuration. There are three signals 
that may not be used:
- RW (Read/Write) may be hardwired to GND
- ENABLE2 is only used with big displays
- GPO is only used for the GPO latch if you have any GPO's

> 1) does lcd4linux sends signall to all pins of printer port

No, it does not. It uses (at least with ppdev() style controlling) the 
parport_frob() function, which allows us to change only specific 
signals, and leave the rest alone.


> 2) how can I set up  HD44780.c wiring section to fit my needs ?.
> 
> Currently I have sth like this:
> 
> Write.RW "GND"
> Write.RS "INIT"
 > Write.ENABLE "STROBE"
> Write.GPO "AUTOFD"

I think it should read "Wire", not "Write" :-)

If you don't have any GPO's, and want to leave the AUTOFD line alone, 
just specify

Wire.GPO GND
and
GPOs 0


Have Fun!

-- 
netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...

[lcd4linux] wiring

[<wik...@te...>]

Hi,

I have just lunch lcd4linux, It works *Yeaa*, I had to change HD44780.c
to fit my winamp wiring. But i have some other things witch i can't
do.

On 17 pin of printer port *AUTOFD* i have some other device. In
documentation I found that this pin is not required in normal work,
this is  only optional if I plan to use more then 2 LCD or with 2
controllers. The problem is that lcd4linux during starts sends some
signals to this pin.

My question is:

1) does lcd4linux sends signall to all pins of printer port
2) how can I set up  HD44780.c wiring section to fit my needs ?.

Currently I have sth like this:

Write.RW "GND"
Write.RS "INIT"
Write.ENABLE "STROBE"
Write.GPO "AUTOFD"


Maybe I should switch my devices from 17 *AUTOFD* to 14
*nRW* ?


thanks. great work.

Re: [lcd4linux] lcd4linux has icons, and wants to be tested!

[Stefan K. <ste...@cr...>]

Hi,

Michael Reinelt schrieb am 13.09.2003 09:36:
> 
> Anyway, I just released 0.9.11-pre1, because I chenged several files, 
> and I don't want to distribute them per email. So if you want to test 
> the new icon stuff, please download the whole archive, and report any 
> problems to me (but do also report sucess!)

No problems here - it works great for me.

Regards

Stefan

Re: [lcd4linux] lcd4linux has icons, and wants to be tested!

[Michael R. <re...@eu...>]

Hi Stefan,
Hi lcd4linux-users,


>>I'm starting to get really angry on this libtool stuff.
> ./libtool: line 1: -e: command not found
> : compile: cannot determine name of library object from `'
> make: *** [display.lo] Error 1
> 
> And yes, you are allowed to send me any files you want. ;-))

            AAAAAAAAARRRRRRGGGGHHHHHHHH !!!!!!!!


Finally, I decided to deactivate all this shared lib and libtool stuff. 
IT's unbeliveable that this leads to such massive problems!

I still need urgent help in this area!


Anyway, I just released 0.9.11-pre1, because I chenged several files, 
and I don't want to distribute them per email. So if you want to test 
the new icon stuff, please download the whole archive, and report any 
problems to me (but do also report sucess!)


Thanks a lot,
                Michael

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netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...

Re: [lcd4linux] lcd4linux has icons, and wants to be tested!

[Stefan K. <ste...@cr...>]

Hi,

Michael Reinelt schrieb am 11.09.2003 17:11:
> 
>> ./configure --with-drivers=HD44780

works now with your 'config.sub' - thanks!

> I'm starting to get really angry on this libtool stuff.

*eg*

I got this out of 'make':

/bin/sh ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I.
-I/usr/X11R6/include -D_GNU_SOURCE -Wall -g -O2 -c display.c
./libtool: line 1: s%^.*/%%: No such file or directory
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
./libtool: line 1: -e: command not found
: compile: cannot determine name of library object from `'
make: *** [display.lo] Error 1

And yes, you are allowed to send me any files you want. ;-))

Regards

Stefan

Re: [lcd4linux] hardware

[Michael R. <re...@eu...>]

Diego Guerrero wrote:
> I'm new in this list and i don't have any lcd, i found an article in 
> http://www.linuxfocus.org/English/March2003/article286.shtml to make my 
> own lcd, does it work right?

I don't know. But what you're making here is not exactly an lcd, but a 
circuit to control an lcd from serial (old version) or usb port. The 
displays they are controlling are HD44780 compatible. lcd4linux is 
capable of controlling such displays on its own, you have to connect 
them to the parallel port.

> could anyone give me some suggestions to 
> make my own display?, or where could i  buy lcd's from Matrox Orbital in 
> SouthAmerica?

sorry, absolutely no idea. You could contact MatrixOrbital directly, I 
can give you an email adress if you want to.


bye, Michael

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netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...

[lcd4linux] hardware

[Diego G. <di...@ex...>]

Hi

I'm new in this list and i don't have any lcd, i found an article in 
http://www.linuxfocus.org/English/March2003/article286.shtml to make my 
own lcd, does it work right?, could anyone give me some suggestions to 
make my own display?, or where could i  buy lcd's from Matrox Orbital in 
SouthAmerica?

Thanks in advance

Greetings from Colombia

Diego

-- 
Diego Andres Guerrero Jimenez
di...@at...tco

"The mere formulation of a problem is far more often essential than its
solution" --Albert Einstein

Re: [lcd4linux] lcd4linux has icons, and wants to be tested!

[Michael R. <re...@eu...>]

Stefan Krister wrote:

> ./configure --with-drivers=HD44780
 > [...]
> configure: error: cannot run /bin/sh ./config.sub
> 
> Don't know what that means.

Grr... I do.
I'm starting to get really angry on this libtool stuff. As Patrick (the 
author of the new liblcd4linux) said about libtool, "it is part of the 
problem it is trying to solve"

config.sub is a file from libtool, which you don't have. It's 
automagically added to the tarball, but not to CVS.

I just added the file manually and commited. Maybe you will be bitten by 
this f*cking sourceforge 24 hours anonymous cvs delay, so do a 'cvs 
update' and check for the existance of the 'config.sub' file, and maybe 
wait a few hours. I can send you the file per mail, too (but not to the 
list).

Anyway, thanks for testing!

bye, Michael

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netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...

Re: [lcd4linux] lcd4linux has icons, and wants to be tested!

[Stefan K. <ste...@cr...>]

Hi,

>
> If you need any assistance, either with CVS or the new configuration,
> please let me know!

./configure --with-drivers=HD44780

checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking whether make sets $(MAKE)... yes
checking for working aclocal-1.4... missing
checking for working autoconf... missing
checking for working automake-1.4... missing
checking for working autoheader... missing
checking for working makeinfo... missing
checking for gcc... gcc
checking for C compiler default output... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for gawk... no
checking for mawk... mawk
checking for ranlib... ranlib
configure: error: cannot run /bin/sh ./config.sub

Don't know what that means.

Regards

Stefan

[lcd4linux] lcd4linux has icons, and wants to be tested!

[Michael R. <re...@eu...>]

Hi there,

I finished the support for icons, animations and heartbeat in lcd4linux. 
As these features requred a lot of recoding, there's a lot of potential 
for bugs. Before I release 0.9.11, I want as many beta-testers as possible.

So if you're interested in this icon stuff, visit 
http://lcd4linux.sourceforge.net, there's you'll see a nice animation. 
If you thinks  this is really cool and amazing, check out the latest 
version from CVS, test it, and send me some feedback!

If you need any assistance, either with CVS or the new configuration, 
please let me know!

Thanks in andvance!

bye, Michael

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netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...

Re: [lcd4linux] 40x4 display with HD44780

[Michael R. <re...@eu...>]

Joachim Wickman wrote:
> Only wanted to inform You that it sure does work now when I did get the new
> parport file =)

Great! Looks like we can release 0.9.11 Real Soon Now(tm)!

Thanks a lot for testing!


I'm working on the icon and heartbeat stuff, which will probably not 
make it into 0.9.11 (this is quite complicated stuff), and Patrick is 
working on the liblcd4linux. Things have to settle down a bit...


bye, Michael

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netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...

Re: [lcd4linux] 40x4 display with HD44780

[Joachim W. <lcd...@fl...>]

Hey,

Only wanted to inform You that it sure does work now when I did get the new
parport file =)

// Joachim


> So please double-check if your "parport.c" is "v1.6", otherwies you got
> the old version.

RE: [lcd4linux] Minor config question

[Luis.F.Correia <Lui...@se...>]

Martin,

> 
> Hi Luis,
> 
> > Create 4 rows like this:
> > 
> > Row1 "BUSY..."
> > Row2 "PPP..."
> > Row3 "Linux 2.4.20..."
> > Row4 "PPP..." (this line is identical to line 2)
> > 
> > I define rows 4, scrool 2, to force lcd4linux to skip the 
> > rows two by tow, so that on line 2 i get always the PPP information.
> > 
> > However this does not work, as lcd4linux will only skip one line 
> > at a time.
> Try if replacing "scrool 2" with "scroll 2" helps... ;-)

It may have been a type really, but i'll check it anyway ;)

> 
> Martin
> 
> 

Re: [lcd4linux] 40x4 display with HD44780

[Joachim W. <lcd...@fl...>]

I did get 2 rows to work again. Don't know what I did =)

> I have fixed. Could you please try again?

There's still the old version at CVS, so maybe tomorrow.

> btw, what is ELMP?
It's a mp3 player... the project has halted know. elmp-tng.sf.net 

Re: [lcd4linux] Minor config question

[Martin H. <ma...@he...>]

Hi Luis,

> Create 4 rows like this:
> 
> Row1 "BUSY..."
> Row2 "PPP..."
> Row3 "Linux 2.4.20..."
> Row4 "PPP..." (this line is identical to line 2)
> 
> I define rows 4, scrool 2, to force lcd4linux to skip the 
> rows two by tow, so that on line 2 i get always the PPP information.
> 
> However this does not work, as lcd4linux will only skip one line 
> at a time.
Try if replacing "scrool 2" with "scroll 2" helps... ;-)

Martin

[lcd4linux] Minor config question

[Luis.F.Correia <Lui...@se...>]

Hi all

I have a question: my LCD is a 24x2 hd44780,

I want to show various data on line one but the ppp info 
in line two.

this is what i thought to do:


Create 4 rows like this:

Row1 "BUSY..."
Row2 "PPP..."
Row3 "Linux 2.4.20..."
Row4 "PPP..." (this line is identical to line 2)

I define rows 4, scrool 2, to force lcd4linux to skip the 
rows two by tow, so that on line 2 i get always the PPP information.

However this does not work, as lcd4linux will only skip one line 
at a time.

Is this a bug or an intentional feature?

Thanks

Re: [lcd4linux] 40x4 display with HD44780

[Michael R. <re...@eu...>]

Hi Joachin,

> I'm using a 40x4 LCD
> I took CVS and put controllers=2 in conf file...
> Result: Blank LCD.. nothing at all.
> 
> With the old lcd4linux I got 2 rows out of 4..

Hmmm... I don't have such a large display. My smaller ones do work 
correctly. But there was a bug in the changed parallel prot code, which 
I have fixed. Could you please try again?

At the moment there's a problem at sourceforge with their anonymous CVS 
access. Anonymous access is routet to their backup servers, which are 
updatet with a 24 hours delay only. This means, if I commit a bugfix, it 
may take up to 24 hours until anybody else sees this change. This is 
very annoying....

Anybody has a hint for a workaround?

So please double-check if your "parport.c" is "v1.6", otherwies you got 
the old version.

> Btw, how should I write in conf file when I have Enable 1 on pin 17?
> I'm using the same display on ELMP, so wouldn't want to rewire it.

Pin 17 is "SELECT", therefore you should write
Wire.Enable "SELECT"

btw, what is ELMP?

bye, Michael

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netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...

Re: [lcd4linux] 40x4 display with HD44780

[Joachim W. <lcd...@fl...>]

Hei,

I'm using a 40x4 LCD
I took CVS and put controllers=2 in conf file...
Result: Blank LCD.. nothing at all.

With the old lcd4linux I got 2 rows out of 4..

Btw, how should I write in conf file when I have Enable 1 on pin 17?
I'm using the same display on ELMP, so wouldn't want to rewire it.



----- Original Message -----
From: "Michael Reinelt" <re...@eu...>
To: "Stefan Krister" <ste...@cr...>
Cc: <lcd...@li...>
Sent: Thursday, August 21, 2003 7:45 AM
Subject: Re: [lcd4linux] 40x4 display with HD44780


> >>There are large (40x4) displays which internally constist of two
> >>HD44780 chips, with two seperate "Enable" lines. At the moment these
> >>displays are not supported, but a patch is in progress...
> >
> > I want to know how far the development is done yet.
>
> A first version is avaliable from CVS. Testers are welcome...
>
> bye, Michael
>
> --
> netWorks                                          Vox: +43 316  698260
> Michael Reinelt                                   Fax: +43 316  692343
> Geisslergasse 4                                   GSM: +43 676 3079941
> A-8045 Graz, Austria                          e-mail: re...@eu...
>
>
>
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Re: [lcd4linux] 40x4 display with HD44780

[Michael R. <re...@eu...>]

>>There are large (40x4) displays which internally constist of two 
>>HD44780 chips, with two seperate "Enable" lines. At the moment these 
>>displays are not supported, but a patch is in progress...
> 
> I want to know how far the development is done yet.

A first version is avaliable from CVS. Testers are welcome...

bye, Michael

-- 
netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...

Re: [lcd4linux] 40x4 display with HD44780

[Michael R. <re...@eu...>]

Stefan Krister wrote:
>> There are large (40x4) displays which internally constist of two 
>> HD44780 chips, with two seperate "Enable" lines. At the moment
>> these displays are not supported, but a patch is in progress...
> 
> 
> I want to know how far the development is done yet.

Here's the answer I got from Jesse:

> -------- Original-Nachricht --------
> Subject: Re: lcd4linux - patch for 4x40 HD44780 displays
> Date: Tue, 29 Jul 2003 00:14:20 -0400 (EDT)
> From: Jesse *****
> To: Michael Reinelt <re...@eu...>
> 
> 
> It kind of slipped my mind and there have been a few other things going on
> - I'll probably get around to it this week.
> 
> Jesse
> 
> On Sun, 27 Jul 2003, Michael Reinelt wrote:
> 
>> Hi Jesse,
>>
>> > I ended up doing a quick hack to lcd4linux to allow it to support my
>> > display. Basically it looks at what line is being written to, and decides
>> > whether to send the enable signal to the upper or lower controller. If
>> > you're interested, I can clean up my code and send you a patch. Let me
>> > know.
>>
>> Did you find some time to clean up the code? I'd be very interested in
>> your patch!
>>
>> TIA, Michael

I'm waiting myself for the code...

bye, Michael

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netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...

[lcd4linux] 40x4 display with HD44780

[Stefan K. <ste...@cr...>]

Hi,

> There are large (40x4) displays which internally constist of two 
> HD44780 chips, with two seperate "Enable" lines. At the moment these 
> displays are not supported, but a patch is in progress...

I want to know how far the development is done yet.

Stefan

[lcd4linux] Re: lcd4linux again

[Michael R. <re...@eu...>]

Hi Jan,

I'm again CCing this to the list. Lets talk about this in public :-)


Jan Kloppenburg schrieb:
[M50530 Display from old Phone, with some sort of 'symbols' on one line]

> if i have the lcd working, i'll try to get this function into lcd4linux's 
> M50530.c, i love open source :)
> but lets start with the wiring first...

Well, that would be great.
But: implementing this into the driver is probably easy, but how do you 
think this should be controlled from lcd4linux? How to specify this in 
lcd4linux.conf?

I think I have a great Idea for this: Treat these symbols as GPO's! 
Normaly a GPO drives a LED, and there is already support for these GPO's 
  in lcd4linux. Now think of these symbols as LED's! Just fill up the 
GPU function with your code, and we're done!

> many thanx again, i'll let you know when i blew up the LCD :)
:-)
Have Fun!


bye, Michael

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netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...

RE: [lcd4linux] lcdproc - lcd4linux

[Luis.F.Correia <Lui...@se...>]

> Luis.F.Correia schrieb:
> >>From my Bering uClibc router setup file:
> > 
> > Wire.RW GND
> > Wire.RS INIT
> > 
> > This corresponds to winamp style connection.
> 
> Thanks, Luis! I've added this as an "wiring example" to the docs at 
> lcd4linux.sf.net. I hope they are correct. otherwise I will 
> forward any 
> complains to you :-)

:) No problem...

Anyway, since i already had the same display working with the 'winamp'
style connection, those two lines were all i needed to do in order to
get lcd4linux working.

[lcd4linux] Re: lcd4linux

[Michael R. <re...@eu...>]

[I'm CCing this to the list. YOu should always post such questions to 
the list, maybe someone else could help you, and, more important, these 
questions and answers will be available to the public]

Jan Kloppenburg wrote:
> I have a HD44780 comatible lcd, nut also a problem.
> I cannot run the LCD at all, because of the following error:
> 
> [root@kernel lcd4linux-0.9.9]# ./lcd4linux -F -vvv
> Version 0.9.9 starting
> lcd4linux.c: initializing driver HD44780
> wiring: [PARPORT:GND]==>[DISPLAY:RW]
> wiring: [PARPORT:AUTOFD]==>[DISPLAY:RS]
> wiring: [PARPORT:STROBE]==>[DISPLAY:ENABLE]
> wiring: [PARPORT:INIT]==>[DISPLAY:GPO]
> udelay.c: CPU supports Time Stamp Counter
> udelay.c: CPU runs at 908.108000 MHz
> udelay.c: using TSC delay loop, 909 ticks per microsecond
> parport.c: using ppdev /dev/printers/0
> parport: ioctl(/dev/printers/0, PPCLAIM) failed: 22 Invalid argument
> HD44780: could not initialize parallel port!

The solution is simple: you have to use /dev/parports/0 and not 
/dev/printers/0.

/dev/parports/* are "raw" parport devices with major number 99, while 
/dev/printers/* are "printer" devices (major number 6).


bye, Michael

-- 
netWorks                                          Vox: +43 316  698260
Michael Reinelt                                   Fax: +43 316  692343
Geisslergasse 4                                   GSM: +43 676 3079941
A-8045 Graz, Austria                          e-mail: re...@eu...