Before running the LCD_DEMO.C sample program, you will need an LCD bas" />
參數(shù)資料
型號: 20-101-0358
廠商: Rabbit Semiconductor
文件頁數(shù): 44/94頁
文件大?。?/td> 0K
描述: COMPUTER SINGLE-BOARD BL1820
標準包裝: 1
系列: Jackrabbit
模塊/板類型: 單板計算機模塊
適用于相關產(chǎn)品: BL1820
產(chǎn)品目錄頁面: 618 (CN2011-ZH PDF)
其它名稱: 316-1081
User’s Manual
45
Before running the LCD_DEMO.C sample program, you will need an LCD based on the
HD44780 (or an equivalent) controller.
LCD_DEMO.C
—demonstrates a 4-bit interface to an LCD based on the HD44780 (or an
equivalent) controller.
Connect the LCD to Parallel Port A.
PA0—LCD DB4
PA1—LCD DB5
PA2—LCD DB6
PA3—LCD DB7
PA6—LCD RS Register Select
(0 = command, 1 = data)
PA7—LCD E:normally low, latches
on high to low transition
The R/W pin and DB0–DB3 on
the LCD are grounded. DB0–DB3
are not used with a 4-bit interface.
This sample program only involves writing, and that is why we ground the R/W pin.
VEE is used to control brightness—the simplest thing to do is ground it. If you need to
control the brightness, you can connect a potentiometer between ground and -5 V, with
the arm going to the VEE pin. Check the specs on the LCD before doing this as some
LCDs may require a different connection. VCC is +5 V and VSS is ground.
PA2
PA1
PA3
PA6
PA7
Jackrabbit
Prototyping Board
J3
3
4
5
6
9
10
LCD
DB4
DB5
DB6
DB7
RS
E
DB0
DB1
DB2
DB3
R/W
VCC
VEE
PA0
+5 V
-5 V
VEE
10 kW
Optional Brightness
Control
相關PDF資料
PDF描述
20-101-0446 MODULE RABBITCORE RCM2130
AT25256-10PI-2.7 IC EEPROM 256KBIT 3MHZ 8DIP
345-030-524-801 CARDEDGE 30POS DUAL .100 GREEN
345-030-524-204 CARDEDGE 30POS DUAL .100 GREEN
345-030-524-202 CARDEDGE 30POS DUAL .100 GREEN
相關代理商/技術參數(shù)
參數(shù)描述
20-101-0383 功能描述:模塊化系統(tǒng) - SOM RCM2020 RabbitCore RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲容量:8 MB, 16 MB 存儲類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in
20-101-0389 功能描述:子卡和OEM板 SR9200 16IN/8OUT RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
20-101-0390 功能描述:子卡和OEM板 SR9210 8 in/ 16 out RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
20-101-0391 功能描述:子卡和OEM板 SR9220 DIG I/O 8IN 8OUT RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
20-101-0392 功能描述:子卡和OEM板 SR9300 A/D 0-10V RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit