User Manual

http://www.DFRobot.com

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一 See the Display Commands section for details.

9.2. Resetting The LCD Module

When turning on the VDD and VSS power supply, LCD module will execute the reset routine

automatically. It takes about 50ms. After the reset routine, the LCD module status will be as

follow:

一 N=1, 2-line display

一 Display clear

一 DL=1, 8-bit interface

一

F=0, 5

8 dot character font

一 D=0, Display off

一 C=0, Cursor off

一 B=0, Blinking off

一 I/D=1, Increment by 1

一 S=0, No shift

NOTE:

一 Reset routine could not generate the Basic Setting

9.3. Display Memory Map

There are two main memory-areas in the LCD module for display.

一 Character Generator RAM(CGRAM)

一 Display Data RAM(DDRAM)

9.3.1. Character Generator RAM(CGRAM)

Character Generator RAM is for storing the User-defined Characters(5

8 dots font). Totally 8

User-defined Characters(character code = 00h-07h) could be created.

The User-defined Character Codes are 00h and 07h. They could be called into DDRAM as

normal character.