
Yampp-3U
Reference Manual
Contents
Version 1.10,
11/10/2005
Page 8 of 13
4 LCD
Assembly
Several types of LCD can be installed on the Yampp-3U player. Here is the instruction to install a
character LCD module and the Nokia graphic LCD.
4.1 Character LCD Installation
It’s possible to install different kind and size of character display module. Actually, Yampp-3U can
support 2x16, 2x20, 2x24, 2x40, 4x16 and 4x20 characters displays. You must edit the
“constant.h” in the firmware package to define the display that will be use and you must rebuild
and update the firmware. The procedure of updating the firmware is explained in section 8.1.
The next table shows you how to connect the character LCD module. The pinout of the LCD
module can be different from a model to another one. So it is very important to check the LCD
datasheet for the correct pinout.
Ke Display
J2
8
6
4
2
7
5
3
1
AD2
AD3
AD4
AD6
KEYS
AD5
AD7
TX_EN
9
11
13
15
16
14
12
10
GND
V0 (VEE)
A1 (R/W)
AD0
AD1
LCD_E (E)
A0 (RS)
VCC