LCD方面,免费

How to control a HD44780
http://home.iae.nl/users/pouweha/lcd/lcd0.shtml
How to control a HD44780-based Character-LCD
The Industry Standard Character LCD
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© 1995-2006 Peter Ouwehand.
Last updated on 2005-09-20
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General info and code-examples
TOC
• 1. General
•
o 1.1. Disclaimer
o 1.2. Usage
o 1.3. Purpose
• 2. HD44780-based LCD modules
•
o 2.1. Pin assignment
o 2.2. Instruction set
o 2.3. Visible DDRAM addresses
o