lcd_l.asm

做液晶显示用的获得汉字字模区位码的软件和一些例城

;LCD_L.ASM	2001.1       2.15
;TEST TO 12864-1 (C12864-1)
;CONTROLLER: KS0108
;SIDE: 128 X 64 DOTS
;DRAW: WHY
;DATE: 1999.5.26
;****************************************************************
ERR     DATA    20H
RAM     DATA    21H
DLYL    DATA    22H
DLYM    DATA    23H
DLYH    DATA    24H
;
Y_RAM   EQU     0E0H
Y_Flash EQU     00H
Y_out0  EQU     80H
Y_out1  EQU     88H
Y_IN    EQU     90H
Y_LCD   EQU     20H
COM_DX  EQU     0B8H
COM_DY  EQU     04H
COM_DZ  EQU     0C0H
;
LWRC    EQU     20H
LRDC    EQU     30H
LWRD    EQU     0A0H
LRDD    EQU     0B0H
;
YLCD	BIT	P1.0		;DEFINE LCM DATA/INSTRUCTION PIN
KIR	BIT	P1.1		;DEFINE LCM READ/WRITE PIN
KRST	BIT	P1.2		;DEFINE LCM CHIP ENABLE PIN
KCLK	BIT	P1.3		;DEFINE LCM CHIP 1 SELECT PIN
;LCS2	BIT	P3.5		;DEFINE LCM CHIP 2 SELECT PIN
;LRSTB	BIT	P3.2		;DEFINE LCM /RESET PIN
;DB0~DB7    REG    P1.0~P1.7	;DEFINE LCM DATA BUS PIN

	ORG	0000H
        MOV     DPH,#Y_RAM
        MOV     DPL,#1
        MOV     A,#55H
        MOVX    @DPTR,A
        MOVX    A,@DPTR
        NOP
        MOV     DPH,#Y_out1
        MOV     A,#0AAH
        MOVX    @DPTR,A
        NOP
        ljmp    l_lcd
L_FROM: NOP
       ; MOV     A,#90H
        ;MOVX    @DPTR,A
        ;MOVX    A,@DPTR
        NOP
        MOV     P2,#0
        MOV     A,#90H
        MOVX    @R0,A
        NOP
        ;MOV     R0,#0
        MOVX    A,@R0
        NOP
        MOV     DPH,#0
        MOV     DPL,#0
        MOV     A,#0FFH
        MOVX    @DPTR,A
        NOP
        NOP
        MOV     A,#90H
        MOVX    @DPTR,A
        MOVX    A,@DPTR
        NOP
        LCALL   K_Flash
        MOV     DPH,#Y_out0
        CLR     A
        MOVX    @DPTR,A
        MOV     DPTR,#000AH
        LCALL   SECERA
        MOV     A,ERR
        JZ      LF1
        SJMP    ERROR1
LF1:    MOV     RAM,#55H
        LCALL   BYPRG
        MOVX    A,@DPTR
        NOP
XH:     NOP
        NOP
        SJMP    XH
ERROR1: NOP
        NOP
        SJMP    ERROR1
;
SECERA: MOV     ERR,#0
        ;MOV     DPTR,#0
        MOV     A,#20H
        MOVX     @DPTR,A
        MOV     A,#0D0H
        MOVX    @DPTR,A
        NOP
        NOP
        LCALL   RDTB
        MOV     R5,#256
        MOV     DPL,#0
SEVEF:  MOVX    A,@DPTR
        CJNE    A,#0FFH,SERR
        INC     DPTR
        DJNZ    R5,SEVEF
        SJMP    SERET
SERR:   MOV     ERR,#01H
SERET:  NOP
        RET
;
BYPRG:  MOV     ERR,#0
        MOV     A,#10H
        MOVX    @DPTR,A
        MOV     A,RAM
        MOVX    @DPTR,A
        NOP
        NOP
        LCALL   RDTB
        MOVX    A,@DPTR
        CJNE    A,RAM,BPERR
        SJMP    BPRET
BPERR:  MOV     ERR,#02H
BPRET:  NOP
        RET
;
K_Flash:
        MOV     DPH,#Y_out0
        MOV     A,#0
        MOVX    @R0,A
        MOV     DPTR,#1823H
        MOVX    A,@DPTR
        MOV     DPTR,#1820H
        MOVX    A,@DPTR
        MOV     DPTR,#1822H
        MOVX    A,@DPTR
        MOV     DPTR,#0418H
        MOVX    A,@DPTR
        MOV     DPTR,#041BH
        MOVX    A,@DPTR
        MOV     DPTR,#0419H
        MOVX    A,@DPTR
        MOV     DPTR,#041AH
        MOVX    A,@DPTR
        RET
;
RDTB:   MOVX    A,@DPTR
        ANL     A,#40H
        MOV     R5,A
        NOP
        NOP
        MOVX    A,@DPTR
        ANL     A,#40H
        XRL     A,R5
        CJNE    A,#0,RDTB
RDTBLP: MOVX    A,@DPTR
        ANL     A,#40H
        MOV     R5,A
        NOP
        MOVX    A,@DPTR
        ANL     A,#40H
        XRL     A,R5
        CJNE    A,#0,RDTBLP
        RET
;
DLY2S:  MOV     DLYH,#1AH
A4:     MOV     DLYM,#0FFH
A5:     MOV     DLYL,#0FFH
        DJNZ    DLYL,$
        DJNZ    DLYM,A5
        DJNZ    DLYH,A4
        RET
;
L_LCD:  NOP
        SETB   YLCD
        MOV     DPH,#Y_out0
        MOV     A,#LWRC
        MOVX    @DPTR,A
        CLR     YLCD
        MOV     DPH,#Y_LCD
        MOV     A,#3EH
        MOVX    @DPTR,A
        MOV     A,#3FH
        MOVX    @DPTR,A
        MOV     A,#COM_DX            ;COM_DX
        MOVX    @DPTR,A
        MOV     A,#COM_DY            ;COM_DY
        MOVX    @DPTR,A
        MOV     A,#COM_DZ            ;COM_DZ
        SETB    YLCD
        MOV     DPH,#Y_oUt0
        MOV     A,#LWRD
        MOVX    @DPTR,A
        CLR     YLCD
        MOV     DPH,#Y_LCD
        MOV     A,#05H
        MOV     R0,#64
L_LCD1: MOVX    @DPTR,A
        DJNZ    R0,L_LCD1
        SETB    YLCD        
        NOP
        NOP
;
ADATA:
	DB  055H,055H,055H,055H,055H,055H,055H,055H
	DB  0AAH,0AAH,0AAH,0AAH,0AAH,0AAH,0AAH,0AAH
	DB  0FFH,000H,0FFH,000H,0FFH,000H,0FFH,000H
	DB  000H,0FFH,000H,0FFH,000H,0FFH,000H,0FFH
	DB  040H,03FH,015H,015H,07FH,000H,000H,000H
	DB  000H,024H,02AH,07FH,02AH,012H,000H,000H
	DB  000H,000H,032H,049H,079H,041H,03EH,000H
	END				;END OF PROGRAM