图形点阵液晶显示模块使用手册 FG2232A 广州市方舟电子有限公司 公司网站 :www.arkteck.com 地址 : 广州市天河区东圃桃园路 33 号 5 楼电话 :2-82574878 82574677 8854485 传真 :82574878 82574677 分机 88
目 录 ( 一 ) 基本特性 () ( 二 ) 原理图 (2) ( 三 ) 限定参数 (2) ( 四 ) 直流特性 (2) ( 五 ) 交流特性 (3) ( 六 ) 引脚特性 (3) ( 七 ) 指令表 (4) ( 八 ) DDRAM 地址表 (5) ( 九 ) 应用举例 (5) I
一. 基本特征. 概述 FG2232A 是一种图形点阵液晶显示器, 它主要由行驱动器 / 列驱动器及 22 32 全点阵液晶显示器组成 可完成图形显示, 也可以显示七个半 (6 6 点阵 ) 汉字 主要技术参数和性能 :. 电源 :VDD=+2.7V~+5V;LCD 外接驱动电压 VDD-V=5.V 2. 显示内容 :22( 列 ) 32( 行 ) 点 3. 显示颜色 : 绿底兰字 4. 显示角度 :6 点钟直视 5.STN 正视反射模式 6. 驱动方式 :/32 Duty,/6 Bias 7. 工作温度 :-2 ~+6, 存储温度 :-3 ~+7 8. 连接方式 : 外部接口由带缆连接 2. 外形尺寸图 3. 机械尺寸一览 : 项目 标准尺寸 单位 模块体积 67. 27.2 8.4 mm 视域 54.8 8.3 mm 行列点阵数 22 32 dots 点距离.4.45 mm 点大小.36.4 mm
二. 原理图 : 三. 限定参数 Item Symbol Standard Value Unit Condition Power supply voltage VDD ~+7. LCD driving voltage VDD~VLCD +3.5~+2. V Input voltage VIN GND VIN VDD Operating temperature range Top -2~+6 No condition Storage temperature range Tst -3~+7 四. 直流特性 : (Ta=~4,VDD=2.7~6.V) Item Symbol Standard Value Unit Power Supply VDD +2.4 ~ +6. V LCD Driving Voltage VLCD ----------- V Input High Voltage VIN.8VDD VIN VDD V Output High Voltage VOH.5VDDmin V Input Low Voltage VIL VIL.2VDD V Output Low Voltage VOL.VDDmax V Power Supply Current IDD 2max ma LCD Power Supply Current ILCD 22max ua 五. 交流特性 2
Signal Parameter Symbol MIN MAX Unit Condition System cycle time Tcyc 2 -- ns A,/RW Address setup time Taw 4 -- ns Address hold time Tah 2 -- ns Data setup time Tds 6 -- Data hold time Tdh 2 -- ns CL=p F D~D7 Output disable time Tch 2 2 ns Access time Tacc -- 8 ns E Enable pulse width(read) 2 -- Tew Enable pulse width(write) 6 -- ns Input wave width rise time Tr -- 5 ns 六. 引脚特性 管脚号 管脚名称 LEVER 管脚功能描述 VDD +5.V 电源电压 2 VSS 电源地 3 VLCD ~+5V LCD 外接驱动负电压 4 /RET H/L 复位信号 在系统需要硬件复位时, 在 /RES 端产生一个上升沿信号 当内部电路复位后,/RES 端保持高电平 5 E H/L 读写使能信号 (MASTER) 6 E2 H/L 读写使能信号 (SLAVE) 7 R/W H/L 读写选择信号 D/I= H, 表示 DB7 DB 为显示数据 8 D/I H/L D/I= L, 表示 DB7 DB 为显示指令数据 9 DB H/L 数据线 DB H/L 数据线 DB2 H/L 数据线 2 DB3 H/L 数据线 3 DB4 H/L 数据线 4 DB5 H/L 数据线 5 DB6 H/L 数据线 3
6 DB7 H/L 数据线 7 NC -- 悬空 8 NC -- 悬空 注 :) 当 VDD=+3V 时,VLCD=~-5V 七. 指令表 INSTRCTI CODE ON R/W D/I D7 D6 D5 D4 D3 D2 D D DISPLAY ON/OFF Display Start Line Page Address set Column (seg) Address set Status Read Write Display Data Read Display / Display start Line ( 3) Column address(~79) B u s y A D C ON / OFF R S T PAGE: (~3) FUNCTION Switch the entire display ON or OFF,regardless of the display RAM s Data or the internal status. : ON : OFF Determines the line of RAM data to be displayed at the display s top line (COM) Sets the page of the Display in the Address register(x address) Sets the column of the Display in the column address register(y address) Read status Busy :insternal operation :Ready ADC :Rightward output :Leftward RST :Reseting :Normal ON/OFF :Display on :Display off Write data Writes the data on the Data bus to RAM Read data Reads data from the Display RAM onto the Data BUS Data ADC Select / Determine the clockwise or Counterclockwise reading of the display Data RAM : Clockwise : Counterclockwise Static Drive ON/OFF Duty Ratio Select / Select the dynamic or static Driving. :Static driving : Dynamic driving / Select the duty ratio :/32 duty :/6 duty 4
Read Modify Write Increment the column Address register when writing. But no-change when reading. End Release from the Read Modify Write Mode. Reset Set the Display Start Line Register to st line, column Address count to and Page Add. Resister to. Power Save(dualco mmand) Set the power save mode by selecting display off and static driving on 八. DDRAM 地址表 Page Data Com No Drive D : 2 : : D7 22 X 6 PLXELS : D : : 3 : : 6 Slave D7 22 X 6 PLXELS D : : : 7 D7 22 X 6 PLXELS : D : : : : 32 Master D7 22 X 6 PLXELS Column Addr ADC= H 3C H 3C Seg No 6 6 Drive Slave Master 九. 应用举例 FG2232A 有 () 直接访问方式和 (2) 间接控制方式两种 FG2232A 与单片机 83 的直接访问接口如图 5 所示 :(VDD=+5V) 5
FG2232A 与单片机 83 的直接访问接口如图 6 所示 :(VDD=+5V) 利用图 5 举例介绍编程实例 ORG H INITM:MOV A,#E2H MOV A,#AEH MOV A,#A4H MOV A,#A9H MOV A,#AH MOV A,#EEH MOV A,#H MOV A,#CH MOV A,#AFH ;DISPLAY * MOV R2,#B8H DIS2:MOV A,R2 ;RESET ;OFF DISPLAY ;OFF STATIC DRIVE ;SELECT /32 DUTY ;ADC SELECT RIGHTWARS OUTPUT ;READ MODIFY WRITE OFF ;COLUMN ADDRESS SET ;SET DISPLAY START LINE ;ON DISPLAY 6
MOV A,#H MOV R,#FH DIS:MOV A,#55H MOV A,#AAH DJNZ R,DIS INC R2 CJNE R2,#BCH,DIS2 MOV A,#AFH ;DISPLAY 横条 MOV R2,#B8H DIS3:MOV A,R2 MOV A,#H MOV R,#3DH DIS4:MOV A,#55H LCALL OUTMD LCALL OUTSD DJNZ R,DIS4 INC R2 CJIE R2,#BCH,DIS3 MOV A,#AFH ;DISPLAY 竖条 MOV R2,#B8H 7
DIS5:MOV A,R2 MOV A,#H MOV R,#EH DIS6:MOV A,#H MOV A,#FFH DJNZ R,DIS6 MOV A,#3CH MOV A,#H INC R2 CJNE R2,#BCH,DIS5 MOV A,#AFH ;DISPLAY 汉字 两只黄鹂鸣翠柳一行白鹭上青天 INITMC:MOV DPTR,#CHINESE MOV R #H MOV B,#B8H DISPWORDM:PUSH B MOV A,B LCALL OUTST MOV A,#H MOV R2 #7AH DISPWORD:MOV A,R MOVC A,@A+DPTR LCALL OUTMD INC DPTR DEC R2 8
CJNE R2,#3DH,DISPWORD MOV A,#H LCALL OUTST DISPWORD2:MOV A,R MOVC A,@A+DPTR LCALL OUTSD INC DPTR DJNZ R2,DISPWORD2 MOV R,#H POP B INC B MOV A,B CINZ A,#BCH,DISPWORDM AJMP INITM MS4: MOV R7,#E8H MS2: MOV R6,#FFH MS: DJNA R6,MS DJNZ R7,MS2 RET ;OUT INSTRCTION TO MASTER 645 OUTMI:PUSH DPH PUSH DPL MOV DPTR,#6H MOVX @DPTR,A POP DPL POP DPH RET ;OUT INSRCTION TO SLAVE 645 OUTSI:PUSH DPH PUSH DPL MOV DPTR,#5H MOVX @DPTR,A POP DPL POP DPH RET 9
;OUT DATA TO MASTER 645 OUTMD:PUSH DPH PUSH DPL MOV DPTR,#EH MOVX @DPTR,A POP DPL POP DPH RET ;OUT DATA TO SLAVE 645 OUTSD:PUSH DPH PUSH DPL MOV DPTR,#DH MOVX @DPTR,A POP DPL POP DPH RET CHINESE:;(PAGE) DB H,H DB H,8H,8H,8H,8H,8H,8H,8H,8H,8H,8H,8H,8H,8H,COH,8H, DB,,H,88H,C4H,23H,4H,42H,42H,42H,42H,42H,C2H,43H,62H,4H, DB,,,F8H,8H,CH,OAH,9H,8H,8H,8H,8H,8H,FCH,8H,, DB,8H,EEH,8AH,OFAH,AAH,AEH,8H,24H,E3H,B6H,AAH,B6H,E2H,2H,2H, DB,,,,,,,,FFH,2H,2H,2H,3H,2H,,, DB,4H,44H,54H,54H,54H,54H,54H,7FH,54H,54H,54H,54H,56H,44H,4H, DB,4H,42H,42H,42H,42H,42H,42H,FEH,42H,42H,42H,42H,43H,62H,4H, B ;(PAGE) DB, B,,,,,,,,,,,,,,,, DB,2H,H,,FFH,,,,,,4H,8H,7FH,,,, DB,,,7FH,2H,2H,2H,2H,2H,2H,2H,2H,2H,7FH,,, DB,,4H,4H,5H,52H,53H,56H,5AH,52H,5AH,56H,9H,9H,78H,H, DB,4H,4H,4H,4H,4H,4H,4H,7FH,4H,4H,4H,4H,4H,6H,4H, DB,,,,FFH,5H,5H,5H,5H,5H,55H,95H,7FH,,,, DB,8H,8H,4H,2H,H.CH,3H,,3H,CH,H,2H,4H,CH,4H, DB ;(PAGE2) DB, DB,2H,2H,F2H,2H,2H,FEH,2H,2H,2H,FEH,2H,2H,F2H,3H,2H, DB,,,,FCH,4H,4H,4H,4H,4H,4H,4H,FEH,4H,,,
DB,2H,2H,24H,24H,24H,3FH,24H,E4H,24H,3FH,24H,24H,24H,3H,2H, DB,4H,E4H,24H,E4H,4H,E4H,26H,E4H,,FCH,6H,55H,84H,7CH,, DB,,FCH,4H,4H,FCH,4H,,FCH,6H,5H,44H,84H,7EH,4H,, DB,,4H,4H,55H,C9H,4H,5FH,6H,4H,55H,C9H,4H,5FH,4H,, DB,H,DH,FFH,9H,H,FEH,2H,2H,F9H,,FEH,2H,2H,FFH,2H, DB ;(PAGE3) DB, DB,,,FFH,8H,4H,3H,4H,8H,4H,3H,44H,98H,7FH,,, DB,,8H,4H,23H,H,9H,H,H,H,9H,H,23H,6H,CH,, DB,,8H,8H,5FH,55H,35H,5H,FH,5H,35H,35H,5FH,4H,8H,, DB,,7FH,2H,7FH,,7FH,2H,7FH,H,3H,2H,AH,52H,82H,7EH, DB,,OFH,4H,4H,FH,H,H,3H,2H,2H,AH,52H,82,7FH,2H, DB,8H,8H,AH,9H,8H,9H,AH,FCH,AH,9H,8H,9H,AH,8H,8H, DB,H,,FFH,,H,8FH,44H,22H,FH,,FFH,8H,H,FH,, DB