Re: [lcd4linux] Newbie - confusing .conf file...

[Paul K. <pau...@xs...>]

Hi Kenneth,

I did a quick check, your wiring seems to be nearly similar to the 
winamp wiring.
Only exception could be the RW signal. Not sure if it could be the 
problem. But you could try to
specify it as GND.
check the WIKI page for the winamp wiring description: 
https://ssl.bulix.org/projects/lcd4linux/wiki/HD44780

something like this.

# generic HD44780 display (WinAmp wiring)
Display HD44780-winamp {
    Driver 'HD44780'
    Model 'generic'
    UseBusy 1
    Port '/dev/parport0'
    Size '20x4'
    Wire {
        RW      'GND'
        RS      'INIT'
        ENABLE  'STROBE'
        ENABLE2 'GND'
        GPO     'GND'
    }
}

Are you sure you have set the correct display and layout to be used? 
(near the end of the config sample file)

Display 'HD44780-winamp'
Layout 'L20x4'

Both of these entries are not in the default sample conf file.

If you stay having problems, please send me your config file

kind regards,

Paul



Kenneth Solberg wrote:

> Hello all!
>  
> I have a 20x4 HD44780-compatible parallel LCD-display which I would 
> like to use with my Fedora (Core 3) home webserver.
>
> The display works fine in Windows (Smartie53) thus it is not a 
> hw-problem, but I can't get it to work with lcd4linux...
>
> The display is wired like this:
>
> LCD Pin - Symbol - Parallell pin
> 1               Vss            GND
> 2               Vdd            +5V
> 3                Vo            GND
> 4                RS        Parallelpin 16
> 5               R/W          GND
> 6                E           Parallelpin 1
> 7             DB0         Parallelpin 2
> 8              DB1      Parallelpin 3
> 9              DB2       Parallelpin 4
> 10            DB3       Parallelpin 5
> 11             DB4    Parallelpin 6
> 12             DB5    Parallelpin 7
> 13             DB6    Parallelpin 8
> 14             DB7  Parallelpin 9
> 15            A            +5V
> 16            K            GND
>  
> Is this a predefined wiring (like 8-bit, winamp and so on)?
>
> Anyone who can help with a lcd4linux.conf? I suspect it to be a driver 
> problem, as long as the Driver section of the .conf is ok, I will 
> probably be able to configure the rest myself...
>
> Thankful for all help...
>  
> Ken
>