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From: schulka@pb.com (Kenneth A. Schulz)
Subject: Re: LCD FAQ latest edition
Message-ID: <1995Mar21.160711.10447@pb.com>
Organization: Pitney Bowes
References: <3ju8nb$7o4@vixen.cso.uiuc.edu> <3k0ubq$597@vixen.cso.uiuc.edu>
Date: Tue, 21 Mar 1995 16:07:11 GMT
Lines: 29
Xref: glinda.oz.cs.cmu.edu sci.electronics:124640 comp.robotics:19116

cburian@ux4.cso.uiuc.edu (Christopher J Burian) writes:

>I just posted (finally) the latest version of the LCD FAQ containing many
>corrections and improvements.  One of the things I just now noticed that
>hasn't been corrected is this, from sec 2.5:

>]20x2 module
>]     Line 1 addresses are 00h to 13h
>]     Line 2 addresses are C0h to D3h

>Since the display data ram only goes from 00 to 7F, this is kind of
>impossible.  Does anyone know where line 2 really starts on the 20x2?
>40h, like the others?  (This was copied straight off of the Optrex 
>datasheet.)  

Yes, 40h; it's determined by the HD44780 controller alone, so it will be the
same for any module using that controller.

Ken

Kenneth A. Schulz			Phone: (203)924-3296
Technical Advisor			Fax:   (203)924-3409
Pitney Bowes Technology Center		e-mail:schulka@pb.com


-- 
Kenneth A. Schulz			Phone: (203)924-3296
Technical Advisor			Fax:   (203)924-3409
Pitney Bowes Technology Center		e-mail:schulka@pb.com
