參數(shù)資料
型號(hào): PICDEM2
廠商: Microchip Technology Inc.
英文描述: simple board
中文描述: 簡(jiǎn)潔的主板
文件頁(yè)數(shù): 36/60頁(yè)
文件大小: 1037K
代理商: PICDEM2
2001 Microchip Technology Inc.
DS30374D-page 31
PICDEM 2 USER
S GUIDE
12
Chapter 6. LCD Demo
The
kbd4bit.asm
and
kbd8bit.asm
programs demonstrate how to
interface to an LCD module in both the 4-bit and 8-bit interface modes. The
programs read the keypad and output the keypresses to the LEDs and the
LCD module. Two include files on the disk,
lcd4bit.asm
and
lcd8bit.asm,
have all of the routines necessary to run the display.
For more information on LCD operation, please refer to
Interfacing PICmicro
Microcontrollers to an LCD Module - AN587.
For detailed information on the
PICDEM 2 hardware, please refer to Appendix A.
Figure 6.1: LCD Demo
PICDEM 2 DEMO BOARD
U2
U1
PIC16C73
(28-pin Device)
PIC16C64/74
(40-pin Device)
RN1
7
6
5
4
3
2
1
0
RN2
PORT B
1994
2
1
LCD DSPLY
14
13
J3
R6
R5
RN3
J4 KEYPAD
1
RN4
LEDs
Keypad
LCD
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