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[Lcdproc] Garbage Data using HD44780


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  • From: Nicolas.Saurbier AT concept04.de (Nicolas Saurbier)
  • Subject: [Lcdproc] Garbage Data using HD44780
  • Date: Wed Jan 5 09:33:02 2005

Hi,

I also had this problem, but on parallel wiring...
I used "Ground" of Powersupply instead of "Ground" of
the parport... no good idea! After I made another
connection GND-LCD <=3D=3D=3D=3D> GND-LPT, the garbage was gone...

Not shure, if this works for serial wiring

cheerz nic
=20

> -----Original Message-----
> From:
> lcdproc-admin AT lists.omnipotent.net=20
> [mailto:lcdproc-admin AT lists.omnipotent.net]
> On Behalf Of Dave=20
> Liquorice
> Sent: Wednesday, January 05, 2005 9:45 AM
> To:
> lcdproc AT lists.omnipotent.net
> Subject: Re: [Lcdproc] Garbage Data using HD44780
>=20
> On Tue, 04 Jan 2005 21:58:11 -0600,
> jblight AT sceince.edu
> wrote:
>=20
> > Right now, when I run LCDd, I get an enormous amount of=20
> garbage data,=20
> > almost like my computer is too fast for the display. When I=20
> stop the=20
> > LCDd daemon, I get something that looks like, "*& Th % anks %^or=20
> > usi#$ng Li nux" on the two lines of LCD.
>=20
> As you are on serial that looks very much like the one or any=20
> of the baud rate, data, stop or parity bits is not set=20
> correctly. Double check what you have your LCDProc driver set=20
> to and what your display is expecting, make sure they both=20
> are the same.
>=20
> > I tried to change the "DelayMult" number in the=20
> /etc/LCDd.conf file,=20
> > but I couldn't see any improvement.
>=20
> I think that is applicable only to devices connected via a=20
> parallel port.
>=20
> Cheers
> Dave.
>=20
>=20
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