AVR-Chat

Hi Tony,

Besides all the other good advice you've already gotten (the one jerk 
notwithstanding) you might want to study the manual for the HD44780.  I 
believe that's the chip used in the Optrex LCD's.

The data sheet for the 44780 is a bit hard to come by but I have it on my 
website at http://www.qsl.net/w9sz/files/PDFs.

I hope that helps.

Zack

On Sat, 23 Apr 2005, arhodes19044 wrote:

> 
> Well, maybe one member is not so helpful.   Maybe does not really
> need to be here any more.....
> 
> -Tony
> 
> --- In AVR-Chat@yahoogroups.com, Jørn Tore Ørsland
> <jorntoreorsland@t...> wrote:
> > fuck you!!!!!!!!! DONT ASK SUTSH A STUPID
> > QUESTIN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> > ----- Original Message -----
> > From: "arhodes19044" <spamiam@c...>
> > To: <AVR-Chat@yahoogroups.com>
> > Sent: Saturday, April 23, 2005 2:50 AM
> > Subject: [AVR-Chat] New LCD will not work.
> >
> >
> > >
> > >
> > > Wow, the members here are SO helpful.  Especially being patient
> with a
> > > newbie like me.
> > >
> > > Well, the next problem is getting my LCD working.  It is a brand
> new
> > > optrex dmc-61230.  I have it hooked up for 4 bit parallel.
> > >
> > > I have it all wired up and all the wires are going to where I
> think
> > > they should, but it is not working.   I have triple checked the
> wires
> > > while looking at the datasheet for the LCD.  Power wires are
> right.
> > > The 4 active data pins (DB4 thru DB7) are hooked to the pins I
> have
> > > assigned to bits 0-4.  RS, RW, E are hooked up aproperly as far
> as I
> > > can tell.  But I get nothing.
> > >
> > > When you power up an LCD should it do anything visible without
> any
> > > connection other than power (+,-) and the "LCD drive" which is
> > > supposed to be in the neighborhood of 1/2 VDD?
> > >
> > > I am getting nothing.  The backlight does come on....
> > >
> > > No lettering or anything.  As far as I can tell, the test program
> > > looks like it is running properly, but I am not positive.
> > >
> > > I am devoid of further ideas....
> > >
> > > -Tony
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> 
> 
> 
> 
> ________________________________________________________________________________
> Yahoo! Groups Links
>  *  To visit your group on the web, go to:
>     http://groups.yahoo.com/group/AVR-Chat/
>      
>  *  To unsubscribe from this group, send an email to:
>     AVR-Chat-unsubscribe@yahoogroups.com
>      
>  *  Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
> 
>