液晶显示原理.txt

OCM12864液晶显示模块是128×64点阵型液晶显示模块

  ACALL DELAY10
  ACALL DELAY10
  ACALL DELAY10
  ACALL DELAY10
  ACALL CLEAR

;==============================================
  MOV R1,#60H
  MOV R2,#15
YS_5:  MOV PAGE0,#02H
  MOV COLUMN,R1
  MOV CODE0,R2
  ACALL CCW_PR
  ACALL DELAY
  ACALL DELAY
  MOV A,R1
  ADD A,#10H
  MOV R1,A
  INC R2
  CJNE R2,#19,YS_5
 

;=============================================
  MOV R1,#50H
  MOV R2,#19
YS_6:  MOV PAGE0,#04H
  MOV COLUMN,R1
  MOV CODE0,R2
  ACALL CCW_PR
  ACALL DELAY
  ACALL DELAY
  MOV A,R1
  ADD A,#10H
  MOV R1,A
  INC R2
  CJNE R2,#25,YS_6
;==============================================

  ACALL DELAY10
  ACALL DELAY10
  ACALL DELAY10
  ACALL DELAY10
  ACALL CLEAR
  ACALL DELAY10
;=============================================
  MOV R1,#50H
  MOV R2,#25
YS_7:  MOV PAGE0,#02H
  MOV COLUMN,R1
  MOV CODE0,R2
  ACALL CCW_PR
  ACALL DELAY
  ACALL DELAY
  MOV A,R1
  ADD A,#10H
  MOV R1,A
  INC R2
  CJNE R2,#31,YS_7
;==============================================

  ACALL DELAY10
  ACALL DELAY10
  ACALL DELAY10
  ACALL DELAY10
  ACALL CLEAR
  ACALL DELAY10
  

  AJMP MAIN


;===============================================
;延时子程序
DELAY: PUSH 00
  PUSH 01
  MOV R0,#0FFH
DELAY1: MOV R1,#0FFH
DELAY2: DJNZ R1,DELAY2
  DJNZ R0,DELAY1
  POP 01
  POP 00
  RET
DELAY10: MOV R4,#06H
DELAY11: ACALL DELAY
  DJNZ R4,DELAY11
  RET
;==============================================
;中文字符写入子程序
CCW_PR:  NOP
  MOV DPTR,#CCTAB
  MOV A,CODE0
  MOV B,#20H
  MUL AB
  ADD A,DPL
  MOV DPL,A
  MOV A,B
  ADDC A,DPH
  MOV DPH,A
  PUSH COLUMN
  PUSH COLUMN
  MOV CODE0,#00H
CCW_1:  MOV COUNT,#10H
  MOV A,PAGE0
  ANL A,#07H
  ORL A,#0B8H
  MOV COM,A
  ACALL PRM0
  ACALL PRR0
  POP COLUMN
  MOV A,COLUMN
  CLR C
  SUBB A,#40H
  JC  CCW_2
  MOV COLUMN,A
  SUBB A,#40H
  JC  CCW_11
  MOV COLUMN,A
  MOV A,PAGE0
  SETB ACC.5
  MOV PAGE0,A
  LJMP CCW_2
CCW_11:  MOV A,PAGE0
  SETB ACC.4
  MOV PAGE0,A
CCW_2:  MOV COM,COLUMN
  ORL COM,#40H
  MOV A,PAGE0
  ANL A,#30H
  CJNE A,#10H,CCW_31
  ACALL PRM0
  LJMP CCW_4
CCW_31:  CJNE A,#20H,CCW_32
  ACALL PRR0
  LJMP CCW_4
CCW_32:  NOP
CCW_4:  MOV A,CODE0
  MOVC A,@A+DPTR
  MOV DAT,A
  MOV A,PAGE0
  ANL A,#30H
  CJNE A,#10H,CCW_41
  ACALL PRM1
  LJMP CCW_5
CCW_41:  CJNE A,#20H,CCW_42
  ACALL PRR1
  LJMP CCW_5
CCW_42:  NOP
CCW_5:  INC CODE0
  INC COLUMN
  MOV A,COLUMN
  CJNE A,#40H,CCW_6
CCW_6:  JC CCW_7
  MOV COLUMN,#00H
  MOV A,PAGE0
  JB  ACC.5,CCW_09
  JB  ACC.4,CCW_61
  SETB ACC.4
  MOV PAGE0,A
  MOV COM,#40H
  ACALL PRM0
  LJMP CCW_7
CCW_61:  SETB ACC.5
  CLR ACC.4
  MOV PAGE0,A
  MOV COM,#40H
  ACALL PRR0
CCW_7:  DJNZ COUNT,CCW_4
CCW_09:  MOV A,PAGE0
  JB  ACC.7,CCW_9
  INC A
  SETB ACC.7
  ANL A,#0CFH
  MOV PAGE0,A
  MOV CODE0,#10H
  LJMP CCW_1
CCW_9:  RET
;=================================================
PRL0: NOP 
 RET
PRL1: NOP
 RET
PRL2: NOP
 RET
;=============================
;写指令代码子程序(左)
PRM0:  CLR CSA
  SETB CSB
  CLR D_I
  SETB R_W
PRM01:  MOV P1,#0FFH
  SETB E
  MOV A,P1
  CLR E
  JB  ACC.7,PRM01
  CLR R_W
  MOV P1,COM
  SETB E
  CLR E
  RET
;===============================
;写显示数据子程序(左)
PRM1:  CLR CSA
  SETB CSB
  CLR D_I
  SETB R_W
PRM11:  MOV P1,#0FFH
  SETB E
  MOV A,P1
  CLR E
  JB  ACC.7,PRM11
  SETB D_I
  CLR R_W
  MOV P1,DAT
  SETB E
  CLR E
  RET

;=============================
;写指令代码子程序(右)
PRR0:  CLR CSB
  SETB CSA
  CLR D_I
  SETB R_W
PRR01:  MOV P1,#0FFH
  SETB E
  MOV A,P1
  CLR E
  JB  ACC.7,PRR01
  CLR R_W
  MOV P1,COM
  SETB E
  CLR E
  RET
;===============================
;写显示数据子程序(右)
PRR1:  CLR CSB
  SETB CSA
  CLR D_I
  SETB R_W
PRR11:  MOV P1,#0FFH
  SETB E
  MOV A,P1
  CLR E
  JB  ACC.7,PRR11
  SETB D_I
  CLR R_W
  MOV P1,DAT
  SETB E
  CLR E
  RET
;=============================
;================================
;初始化子程序
INT:  MOV COM,#0C0H         ;设置显示起始行为第一行
  ACALL PRM0
  ACALL PRR0
  MOV COM,#3FH          ;开显示设置
  ACALL PRM0
  ACALL PRR0
  RET
;================================
;清屏子程序
CLEAR:  MOV R4,#00H
CLEAR1:  MOV A,R4
  ORL A,#0B8H
  MOV COM,A
  ACALL PRM0
  ACALL PRR0
  MOV COM,#40H
  ACALL PRM0
  ACALL PRR0
  MOV R3,#40H
CLEAR2:  MOV DAT,#00H
  ACALL PRM1
  ACALL PRR1
  DJNZ R3,CLEAR2
  INC R4
  CJNE R4,#08H,CLEAR1
  RET
;=================================
CCTAB:
;0
;--  文字:  预  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  020H,022H,02AH,0F2H,02AH,066H,020H,002H,0F2H,01AH,0D6H,012H,012H,0F2H,002H,000H
DB  000H,020H,040H,03FH,000H,000H,040H,040H,027H,018H,007H,008H,010H,027H,060H,000H
;1
;--  文字:  祝  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  008H,008H,089H,0CEH,0A8H,018H,000H,0FEH,082H,082H,082H,082H,0FEH,000H,000H,000H
DB  002H,001H,000H,0FFH,000H,083H,040H,030H,00FH,000H,000H,07FH,080H,080H,0F0H,000H
;2
;--  文字:  电  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  000H,000H,0F8H,048H,048H,048H,048H,0FFH,048H,048H,048H,048H,0F8H,000H,000H,000H
DB  000H,000H,00FH,004H,004H,004H,004H,03FH,044H,044H,044H,044H,04FH,040H,070H,000H
;3
;--  文字:  气  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  000H,020H,010H,08CH,0A7H,0A4H,0A4H,0A4H,0A4H,0A4H,0A4H,0A4H,024H,004H,004H,000H
DB  000H,000H,000H,000H,000H,000H,000H,000H,000H,000H,000H,00FH,030H,040H,0F0H,000H
;4
;--  文字:  杯  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  008H,088H,068H,0FFH,048H,08AH,002H,002H,0C2H,0F2H,00EH,082H,002H,002H,002H,000H
DB  002H,001H,000H,0FFH,000H,004H,002H,001H,000H,0FFH,000H,000H,001H,006H,00CH,000H
;5
;--  文字:  科  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  010H,012H,092H,072H,0FEH,051H,091H,000H,022H,0CCH,000H,000H,0FFH,000H,000H,000H
DB  004H,002H,001H,000H,0FFH,000H,004H,004H,004H,002H,002H,002H,0FFH,001H,001H,000H
;6
;--  文字:  技  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  008H,008H,088H,0FFH,048H,028H,000H,0C8H,048H,048H,07FH,048H,0C8H,048H,008H,000H
DB  001H,041H,080H,07FH,000H,040H,040H,020H,013H,00CH,00CH,012H,021H,060H,020H,000H
;7
;--  文字:  作  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  080H,040H,020H,0F8H,007H,022H,018H,00CH,0FBH,048H,048H,048H,068H,048H,008H,000H
DB  000H,000H,000H,0FFH,000H,000H,000H,000H,0FFH,004H,004H,004H,004H,006H,004H,000H
;8
;--  文字:  品  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  000H,000H,000H,000H,07EH,022H,022H,022H,022H,022H,022H,07EH,000H,000H,000H,000H
DB  000H,07FH,021H,021H,021H,021H,07FH,000H,07FH,021H,021H,021H,021H,07FH,000H,000H
;9
;--  文字:  大  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  020H,020H,020H,020H,020H,020H,0A0H,07FH,0A0H,020H,020H,020H,020H,020H,020H,000H
DB  000H,080H,040H,020H,010H,00CH,003H,000H,001H,006H,008H,030H,060H,0C0H,040H,000H
;10
;--  文字:  赛  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  008H,086H,0AAH,0AAH,0AAH,0FEH,0AAH,0ABH,0AAH,0FEH,0AAH,0AAH,0A2H,086H,002H,000H
DB  004H,004H,082H,082H,05FH,042H,022H,01EH,022H,022H,05FH,0C1H,042H,006H,002H,000H
;11
;--  文字:  圆  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  000H,0FFH,001H,001H,0DDH,055H,055H,055H,055H,055H,0DDH,001H,001H,0FFH,000H,000H
DB  000H,0FFH,040H,040H,067H,050H,048H,047H,048H,050H,067H,040H,040H,0FFH,000H,000H
;12
;--  文字:  满  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  010H,061H,006H,0E0H,004H,0A4H,0A4H,0EFH,0A4H,0A4H,0E4H,0AFH,0A4H,0A4H,024H,000H
DB  008H,0F8H,007H,000H,000H,0FFH,008H,007H,014H,008H,007H,044H,088H,07FH,000H,000H
;13
;--  文字:  成  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  000H,000H,0F8H,048H,048H,048H,0C8H,008H,0FFH,008H,009H,00AH,0C8H,088H,008H,000H
DB  040H,030H,00FH,000H,008H,050H,04FH,020H,010H,00BH,00CH,012H,021H,040H,0F0H,000H
;14
;--  文字:  功  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  000H,004H,004H,004H,0FCH,004H,014H,014H,010H,090H,07FH,010H,010H,0F0H,000H,000H
DB  004H,00CH,004H,004H,003H,042H,022H,011H,00CH,023H,020H,060H,020H,01FH,000H,000H
;15
;--  文字:  西  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  002H,0F2H,012H,012H,012H,0FEH,012H,012H,012H,0FEH,012H,012H,012H,0F2H,002H,000H
DB  000H,07FH,028H,024H,022H,021H,020H,020H,020H,021H,022H,022H,022H,07FH,000H,000H
;16
;--  文字:  南  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  004H,004H,0E4H,024H,024H,064H,0B4H,02FH,024H,0A4H,064H,024H,024H,0E6H,004H,000H
DB  000H,000H,07FH,004H,005H,005H,005H,07FH,005H,005H,005H,025H,044H,03FH,000H,000H
;17
;--  文字:  交  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  000H,008H,088H,048H,038H,028H,009H,00EH,00CH,008H,098H,028H,068H,048H,008H,000H
DB  000H,080H,080H,040H,041H,022H,014H,018H,00CH,016H,023H,061H,0C0H,040H,000H,000H
;18
;--  文字:  大  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  020H,020H,020H,020H,020H,020H,0A0H,07FH,0A0H,020H,020H,020H,020H,020H,020H,000H
DB  000H,080H,040H,020H,010H,00CH,003H,000H,001H,006H,008H,030H,060H,0C0H,040H,000H
;19
;--  文字:  电  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  000H,000H,0F8H,048H,048H,048H,048H,0FFH,048H,048H,048H,048H,0F8H,000H,000H,000H
DB  000H,000H,00FH,004H,004H,004H,004H,03FH,044H,044H,044H,044H,04FH,040H,070H,000H
;20
;--  文字:  子  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  000H,000H,002H,002H,002H,002H,002H,0E2H,012H,00AH,006H,002H,000H,080H,000H,000H
DB  001H,001H,001H,001H,001H,041H,081H,07FH,001H,001H,001H,001H,001H,001H,001H,000H
;21
;--  文字:  科  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  010H,012H,092H,072H,0FEH,051H,091H,000H,022H,0CCH,000H,000H,0FFH,000H,000H,000H
DB  004H,002H,001H,000H,0FFH,000H,004H,004H,004H,002H,002H,002H,0FFH,001H,001H,000H
;22
;--  文字:  技  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  008H,008H,088H,0FFH,048H,028H,000H,0C8H,048H,048H,07FH,048H,0C8H,048H,008H,000H
DB  001H,041H,080H,07FH,000H,040H,040H,020H,013H,00CH,00CH,012H,021H,060H,020H,000H
;23
;--  文字:  协  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  010H,010H,0FFH,010H,010H,010H,0C8H,008H,008H,0FFH,008H,008H,0F8H,080H,000H,000H
DB  000H,000H,07FH,000H,000H,043H,020H,018H,007H,000H,020H,040H,03FH,000H,003H,000H
;24
;--  文字:  会  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  080H,040H,040H,020H,050H,048H,044H,043H,044H,048H,050H,020H,060H,0C0H,040H,000H
DB  000H,000H,042H,0E2H,052H,04AH,046H,062H,022H,022H,02AH,0F2H,062H,000H,000H,000H

;25
;--  文字:  L  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  008H,0F8H,008H,000H,000H,000H,000H,000H,000H,000H,000H,000H,000H,000H,000H,000H
DB  020H,03FH,020H,020H,020H,020H,030H,000H,000H,000H,000H,000H,000H,000H,000H,000H
;26
;--  文字:  C  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  0C0H,030H,008H,008H,008H,008H,038H,000H,000H,000H,000H,000H,000H,000H,000H,000H
DB  007H,018H,020H,020H,020H,010H,008H,000H,000H,000H,000H,000H,000H,000H,000H,000H
;27
;--  文字:  D  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  008H,0F8H,008H,008H,008H,010H,0E0H,000H,000H,000H,000H,000H,000H,000H,000H,000H
DB  020H,03FH,020H,020H,020H,010H,00FH,000H,000H,000H,000H,000H,000H,000H,000H,000H
;28
;--  文字:  演  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  010H,021H,086H,060H,000H,00CH,0D4H,054H,055H,0F6H,054H,054H,0D4H,00CH,004H,000H
DB  004H,0FCH,003H,000H,000H,000H,08FH,069H,009H,00FH,009H,029H,0CFH,000H,000H,000H
;29
;--  文字:  示  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  000H,020H,020H,022H,022H,022H,022H,0E2H,022H,022H,022H,022H,022H,020H,020H,000H
DB  010H,008H,004H,003H,000H,040H,080H,07FH,000H,000H,001H,002H,00CH,018H,000H,000H
;30
;--  文字:  器  --
;--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --
DB  040H,040H,04FH,049H,049H,0C9H,0CFH,070H,0C0H,0CFH,049H,059H,069H,04FH,000H,000H
DB  002H,002H,07EH,045H,045H,044H,07CH,000H,07CH,044H,045H,045H,07EH,006H,002H,000H

END