LH12864C带字库图形点阵液晶屏显示模块驱动程序

发布时间：15-09-30

LH12864C是一种采用低功耗CMOS技术实现的点阵图形LCD模块，内含KS0108B控制器，CSA与KS0108B（1）连通！CSB与KS0108B（2）连通！CSA/CSB为01时选通KS0108B（1）；为10时选通CSB与KS0108B（2），为其他值时！禁止选通！总线处于高阻状态！

LH12864C带字库图形点阵液晶屏显示模块驱动程序如下：

;*****************************************
;    PROGRAM: LH12864C
;    CONTROLLER: KS0108B
;    LOW LEVEL ACTIVE
;    DATE:    2005.10.06
;*****************************************

       DAT EQU 20H
       COM EQU 21H
       DL1 EQU 22H
       DL2 EQU 23H
       DL3 EQU 24H
       PN EQU PSW.5

       E   EQU P3.2
       RRW EQU P3.1
       DDI EQU P3.0
       CS1 EQU P3.3
       CS2 EQU P3.4

       RES EQU P3.5

       ORG 0030H
START:

       CLR    RES
       LCALL DELAY
       SETB RES
       LCALL DELAY

       MOV COM,#0C0H    ;SET THE DISPLAY START LINE=0
       ACALL WRCOM1
       ACALL WRCOM2

       MOV COM,#3FH     ;SET DISPLAY ON
       ACALL WRCOM1
       ACALL WRCOM2

MAIN: MOV DPTR,#DISP1   ;WRITE THE DISPLAY CONTENT OF DISP1
       MOV R2,#4H
loop3: CLR A
       MOVC A,@A+DPTR
       MOV 30H,A
       INC DPTR
       CLR A
       MOVC A,@A+DPTR
       MOV 31H,A

       MOV R1,#00H    ;R1 IS THE X ADDRESS
LOOP2: MOV A,R1
       ANL A,#0BFH    ;SET THE PAGE(X) ADDRESS
       ORL A,#0B8H
       MOV COM,A
       ACALL WRCOM1
       ACALL WRCOM2

       MOV COM,#40H   ;SET Y ADDRESS =0
       ACALL WRCOM1
       ACALL WRCOM2

       MOV R0,#20H    ;20H=32D, WRITE ONE PAGE
LOOP1: MOV DAT,30H
       ACALL WRDAT1
       ACALL WRDAT2
       MOV DAT,31H
       ACALL WRDAT1
       ACALL WRDAT2
       DJNZ R0,LOOP1

       INC R1
       CJNE R1,#08H,LOOP2

       INC DPTR
       ACALL DELAY
       ACALL DELAY
       DJNZ R2,LOOP3

DISP1: db 0ffh,0ffh,0aah,0aah
        db 0ffh,00h,0aah, 55h

;======================================
       SETB PN           ;PN=1:POSITIVE, PN=0:NEGATIVE

POEM: MOV DPTR,#DISP2
       MOV R2,#00H       ; X ADDRESS

LOOP10:MOV R3,#00H       ; Y ADDRESS
LOOP6: MOV A,R2          ;SET THE X ADDRESS OF A WORD IN IC1
       ORL A,#0B8H
       MOV COM,A
       ACALL WRCOM1

       MOV A,R3          ;SET THE Y ADDRESS OF A WORD IN IC1
       ORL A,#40H
       MOV COM,A
       ACALL WRCOM1

        MOV R0,#010H        ;WRITE THE FIRST (UPPER) HALF OF A WORD
LOOP4: CLR A
        MOVC A,@A+DPTR
        JB PN,NEXT1
        CPL A
NEXT1: MOV DAT,A
        ACALL WRDAT1
        INC DPTR
        DJNZ R0,LOOP4

       MOV A,R2          ;SET THE X ADDRESS OF A WORD(LOW PART) IN IC1
       INC A
       ORL A,#0B8H
       MOV COM,A
       ACALL WRCOM1

       MOV A,R3          ;SET THE Y ADDRESS OF A WORD(LOW PART) IN IC1
       ORL A,#40H
       MOV COM,A
       ACALL WRCOM1

        MOV R0,#010H       ;WRITE THE SECOND(LOW) HALF OF A WORD
LOOP5: CLR A
        MOVC A,@A+DPTR
        JB PN,NEXT2
        CPL A
NEXT2: MOV DAT,A
        ACALL WRDAT1
        INC DPTR
        INC R3
        DJNZ R0, LOOP5

        CJNE R3,#40H,LOOP6

       MOV R3,#00H       ; Y ADDRESS
LOOP7: MOV A,R2          ;SET THE X ADDRESS OF A WORD IN IC2
       ORL A,#0B8H
       MOV COM,A
       ACALL WRCOM2

       MOV A,R3          ;SET THE Y ADDRESS OF A WORD IN IC2
       ORL A,#40H
       MOV COM,A
       ACALL WRCOM2

        MOV R0,#010H        ;WRITE THE FIRST (UPPER) HALF OF A WORD
LOOP8: CLR A
        MOVC A,@A+DPTR
        JB PN, NEXT3
        CPL A
NEXT3: MOV DAT,A
        ACALL WRDAT2
        INC DPTR
        DJNZ R0,LOOP8

       MOV A,R2          ;SET THE X ADDRESS OF A WORD(LOW PART) IN IC2
       INC A
       ORL A,#0B8H
       MOV COM,A
       ACALL WRCOM2

       MOV A,R3          ;SET THE Y ADDRESS OF A WORD(LOW PART) IN IC2
       ORL A,#40H
       MOV COM,A
       ACALL WRCOM2

        MOV R0,#010H       ;WRITE THE SECOND(LOW) HALF OF A WORD
LOOP9: CLR A
        MOVC A,@A+DPTR
        JB PN,NEXT4
        CPL A
NEXT4: MOV DAT,A
        ACALL WRDAT2
        INC DPTR
        INC R3
        DJNZ R0, LOOP9

        CJNE R3,#40H,LOOP7

        INC R2
        INC R2

        MOV A,R2
        XRL A,#08H
        JZ NEXT5
        AJMP LOOP10
NEXT5: ACALL DELAY
        ACALL DELAY
        ACALL DELAY

;        CPL PN        ;POS., NEG. ALTER MODE
;        AJMP POEM
         ljmp   MAIN

        SJMP $
;***********SUBROUTINE*******************
;------------WRITE DATA TO IC1-----------
WRDAT1: PUSH ACC
        SETB CS1      ;OPEN IC1, CLOSE IC2
        CLR CS2
;       SETB rrw      ;READ THE STATUS WORD
;       CLR DDI
   WD1: MOV P1,#0FFH
;       SETB E
;       MOV A,P1
;       CLR E
;       JB ACC.7,WD1   ;BUSY?
        SETB DDI
        CLR rrw
        MOV P1,DAT
        SETB E         ;FALLING EDGE OF E
        NOP
        CLR E
        POP ACC
        RET

;------------WRITE COMMAND TO IC1-----------
WRCOM1: PUSH ACC
        SETB CS1      ;OPEN IC1, CLOSE IC2
        CLR CS2
        SETB rrw      ;READ THE STATUS WORD
        CLR DDI
   WC1: MOV P1,#0FFH
        SETB E
        MOV A,P1
        CLR E
        JB ACC.7,WC1   ;BUSY?
        CLR rrw
        MOV P1,COM
        SETB E         ;FALLING EDGE OF E
        NOP
        CLR E
        POP ACC
        RET
;---------------READ DATA FROM IC1----------
RDDAT1: PUSH ACC
        SETB CS1      ;OPEN IC1, CLOSE IC2
        CLR CS2
        SETB rrw      ;READ THE STATUS WORD
        CLR DDI
   RD1: MOV P0,#0FFH
        SETB E
        MOV A,P1
        CLR E
        JB ACC.7,RD1   ;BUSY?
        SETB DDI
        MOV P1, #0FFH
        SETB E
        MOV DAT,P1
        CLR E
        POP ACC
        RET

;------------WRITE DATA TO IC2-----------
WRDAT2: PUSH ACC
        SETB CS2      ;OPEN IC2, CLOSE IC1
        CLR CS1
        SETB rrw      ;READ THE STATUS WORD
       CLR DDI
   WD2: MOV P1,#0FFH
       SETB E
        MOV A,P1
        CLR E
        JB ACC.7,WD2   ;BUSY?
        SETB DDI
        CLR rrw
        MOV P1,DAT
        SETB E         ;FALLING EDGE OF E
        NOP
        CLR E
        POP ACC
        RET

;------------WRITE COMMAND TO IC1-----------
WRCOM2: PUSH ACC
        SETB CS2      ;OPEN IC2, CLOSE IC1
        CLR CS1
        SETB rrw      ;READ THE STATUS WORD
        CLR DDI
   WC2: MOV P1,#0FFH
       SETB E
       MOV A,P1
        CLR E
       JB ACC.7,WC2   ;BUSY?
        CLR rrw
        MOV P1,COM
        SETB E         ;FALLING EDGE OF E
        NOP
        CLR E
        POP ACC
        RET
;---------------READ DATA FROM IC1----------
RDDAT2: PUSH ACC
        SETB CS2      ;OPEN IC2, CLOSE IC1
        CLR CS1
        SETB rrw      ;READ THE STATUS WORD
        CLR DDI
   RD2: MOV P1,#0FFH
        SETB E
        MOV A,P1
        CLR E
        JB ACC.7,RD2   ;BUSY?
        SETB DDI
        MOV P1, #0FFH
        SETB E
        MOV DAT,P1
        CLR E
        POP ACC
        RET
;----------------DELAY----------------
DELAY: MOV DL3,#03H
DLY2: MOV DL1,#08AH
       MOV DL2,#0FEH
DLY1: NOP
       DJNZ DL2,DLY1
       DJNZ DL1,DLY1
       DJNZ DL3,DLY2
       RET
;*******************************************************
disp2: db 010h, 022h, 064h, 0ch, 0c0h, 044h, 054h, 054h
db 054h, 07fh, 054h, 054h, 0d6h, 044h, 040h, 00h
db 04h, 04h, 0feh, 01h, 00h, 00h, 0ffh, 015h
db 015h, 015h, 055h, 095h, 07fh, 01h, 00h, 00h
db 00h, 0fch, 044h, 044h, 044h, 0feh, 04h, 00h
db 0feh, 022h, 022h, 022h, 022h, 0ffh, 02h, 00h
db 00h, 0fh, 04h, 04h, 04h, 08fh, 040h, 030h
db 0fh, 02h, 02h, 042h, 082h, 07fh, 00h, 00h
db 00h, 0fch, 084h, 084h, 084h, 0feh, 014h, 010h
db 090h, 010h, 010h, 010h, 0ffh, 010h, 010h, 00h
db 00h, 03fh, 010h, 010h, 010h, 03fh, 00h, 00h
db 00h, 023h, 040h, 080h, 07fh, 00h, 00h, 00h
db 04h, 024h, 024h, 024h, 024h, 03fh, 0e4h, 024h
db 024h, 03fh, 024h, 024h, 0f4h, 026h, 04h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 0ffh, 00h
db 00h, 04h, 08h, 010h, 0fh, 00h, 00h, 00h
db 02h, 02h, 0f2h, 012h, 092h, 012h, 012h, 0feh
db 012h, 092h, 012h, 012h, 0fah, 013h, 02h, 00h
db 00h, 00h, 0ffh, 00h, 08h, 011h, 00h, 07fh
db 00h, 08h, 051h, 080h, 07fh, 00h, 00h, 00h
db 020h, 030h, 0ach, 063h, 030h, 00h, 080h, 060h
db 01eh, 00h, 07h, 018h, 060h, 0c0h, 040h, 00h
db 022h, 067h, 022h, 012h, 012h, 081h, 040h, 031h
db 0fh, 01h, 041h, 081h, 07fh, 00h, 00h, 00h
db 020h, 030h, 0ach, 063h, 030h, 00h, 080h, 060h
db 01eh, 00h, 07h, 018h, 060h, 0c0h, 040h, 00h
db 022h, 067h, 022h, 012h, 012h, 081h, 040h, 031h
db 0fh, 01h, 041h, 081h, 07fh, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 00h, 00h, 020h, 01ch, 0ch, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 00h, 0feh, 042h, 0c2h, 042h, 07fh, 012h, 08h
db 08ch, 057h, 024h, 054h, 08ch, 084h, 080h, 00h
db 040h, 07eh, 040h, 03fh, 022h, 022h, 01h, 0ffh
db 042h, 042h, 042h, 042h, 042h, 0ffh, 02h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 0ffh
db 020h, 020h, 020h, 030h, 020h, 00h, 00h, 00h
db 040h, 040h, 040h, 040h, 040h, 040h, 040h, 07fh
db 040h, 040h, 040h, 040h, 040h, 060h, 040h, 00h
db 00h, 010h, 088h, 0c4h, 023h, 040h, 042h, 042h
db 042h, 042h, 042h, 0c2h, 043h, 062h, 040h, 00h
db 02h, 01h, 00h, 0ffh, 00h, 00h, 00h, 00h
db 00h, 040h, 080h, 07fh, 00h, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 080h, 07fh
db 080h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 00h, 080h, 040h, 020h, 010h, 0ch, 03h, 00h
db 03h, 0ch, 010h, 020h, 040h, 0c0h, 040h, 00h
db 088h, 044h, 023h, 018h, 023h, 044h, 0c8h, 020h
db 010h, 0fh, 0e8h, 08h, 028h, 018h, 00h, 00h
db 00h, 07fh, 021h, 021h, 021h, 07fh, 080h, 040h
db 030h, 0ch, 03h, 01ch, 060h, 0c0h, 040h, 00h
db 00h, 0feh, 044h, 048h, 050h, 0ffh, 050h, 048h
db 04h, 0fch, 044h, 044h, 0c2h, 062h, 040h, 00h
db 00h, 07fh, 024h, 022h, 021h, 03fh, 021h, 0a2h
db 040h, 03fh, 00h, 00h, 0ffh, 00h, 00h, 00h
db 020h, 024h, 0e4h, 026h, 034h, 020h, 0fch, 026h
db 025h, 0fch, 024h, 024h, 0feh, 04h, 00h, 00h
db 08h, 0eh, 09h, 08h, 08ch, 058h, 023h, 019h
db 07h, 07dh, 081h, 0b1h, 0adh, 0b0h, 0c0h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 00h, 030h, 048h, 048h, 030h, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 080h, 040h, 020h, 0f8h, 047h, 048h, 048h, 07fh
db 048h, 048h, 048h, 07fh, 0c8h, 068h, 040h, 00h
db 00h, 00h, 00h, 0ffh, 00h, 00h, 0ffh, 049h
db 049h, 049h, 049h, 049h, 0ffh, 01h, 00h, 00h
db 00h, 0f8h, 01h, 02h, 0e6h, 020h, 022h, 022h
db 022h, 022h, 0f2h, 022h, 02h, 0ffh, 02h, 00h
db 00h, 0ffh, 00h, 00h, 01fh, 08h, 08h, 08h
db 08h, 08h, 01fh, 040h, 080h, 07fh, 00h, 00h
db 010h, 021h, 066h, 00h, 082h, 0f2h, 012h, 012h
db 0feh, 012h, 0feh, 012h, 012h, 0fbh, 012h, 00h
db 04h, 04h, 0feh, 01h, 00h, 0ffh, 042h, 049h
db 048h, 048h, 048h, 049h, 041h, 0ffh, 00h, 00h
db 010h, 0ch, 024h, 0a4h, 0a4h, 064h, 0a5h, 026h
db 024h, 024h, 024h, 0a4h, 024h, 014h, 0ch, 00h
db 00h, 049h, 049h, 024h, 024h, 052h, 089h, 07fh
db 04h, 0ah, 011h, 011h, 020h, 060h, 020h, 00h
db 080h, 040h, 020h, 0f8h, 07h, 04h, 0e4h, 024h
db 024h, 0f4h, 024h, 04h, 0fch, 06h, 04h, 00h
db 00h, 00h, 00h, 0ffh, 00h, 00h, 0fh, 04h
db 04h, 0fh, 040h, 080h, 07fh, 00h, 00h, 00h
db 00h, 00h, 0e0h, 01eh, 010h, 010h, 0f0h, 00h
db 00h, 0ffh, 020h, 040h, 080h, 080h, 00h, 00h
db 082h, 041h, 020h, 01bh, 04h, 01bh, 020h, 040h
db 040h, 05fh, 040h, 040h, 040h, 061h, 020h, 00h
db 04h, 04h, 04h, 084h, 0e4h, 03ch, 027h, 024h
db 024h, 024h, 024h, 0f4h, 024h, 06h, 04h, 00h
db 04h, 02h, 01h, 00h, 0ffh, 09h, 09h, 09h
db 09h, 049h, 089h, 07fh, 00h, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 00h, 00h, 020h, 01ch, 0ch, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 040h, 03ch, 010h, 010h, 0ffh, 010h, 050h, 020h
db 0d8h, 017h, 010h, 010h, 0f0h, 018h, 010h, 00h
db 04h, 04h, 04h, 02h, 0ffh, 081h, 081h, 040h
db 023h, 014h, 08h, 016h, 061h, 0c0h, 040h, 00h
db 020h, 020h, 024h, 0a4h, 0ach, 0b4h, 0a5h, 0a6h
db 0a4h, 0b4h, 0ach, 0e6h, 0a4h, 030h, 020h, 00h
db 00h, 080h, 0a0h, 0afh, 0aah, 0aah, 0aah, 0ffh
db 0aah, 0aah, 0aah, 0afh, 0a0h, 080h, 00h, 00h
db 040h, 042h, 044h, 0cch, 00h, 042h, 036h, 02ah
db 022h, 0feh, 021h, 029h, 025h, 080h, 00h, 00h
db 00h, 040h, 020h, 01fh, 021h, 041h, 05dh, 049h
db 049h, 04fh, 049h, 049h, 05dh, 061h, 021h, 00h
db 010h, 010h, 010h, 0ffh, 090h, 050h, 00h, 03fh
db 048h, 048h, 048h, 044h, 046h, 0c4h, 070h, 00h
db 02h, 042h, 081h, 07fh, 00h, 00h, 00h, 0ffh
db 049h, 049h, 049h, 049h, 049h, 0ffh, 01h, 00h
db 08h, 08h, 088h, 088h, 048h, 028h, 018h, 0ffh
db 018h, 028h, 048h, 048h, 088h, 08ch, 088h, 00h
db 01h, 01h, 00h, 0feh, 042h, 042h, 042h, 043h
db 042h, 042h, 042h, 0feh, 00h, 01h, 00h, 00h
db 04h, 04h, 04h, 0c4h, 03fh, 04h, 04h, 04h
db 0e4h, 04h, 01fh, 084h, 0c4h, 06h, 04h, 00h
db 04h, 02h, 01h, 0ffh, 00h, 020h, 010h, 08h
db 03fh, 042h, 041h, 040h, 040h, 040h, 070h, 00h
db 010h, 010h, 0d0h, 0ffh, 090h, 018h, 010h, 010h
db 090h, 010h, 010h, 0ffh, 010h, 018h, 010h, 00h
db 04h, 03h, 00h, 0ffh, 00h, 03h, 00h, 00h
db 00h, 043h, 080h, 07fh, 00h, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
db 00h, 030h, 048h, 048h, 030h, 00h, 00h, 00h
db 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
        end

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