?? 13.4.2 spi接口lcd顯示模塊edm1079.txt
字號(hào):
LCDBUF1 BYTE 74H
LCDBUF2 BYTE 75H
LCDBUF3 BYTE 76H
LCDB UF4 BYTE 77H
LCDBUF5 BYTE 78H
LCDBUF6 BYTE 79H
LCDBUF7 BYTE 7AH
LCDBUF8 BYTE 7BH
LCDBUF9 BYTE 7CH
LCDBUF10 BYTE 7DH
LCDBUF11 BYTE 7EH
LCDBUF 12 BYTE 7FH
SCL EQI7 P1.2
SDI EQU P1.5
CE EQU PL4
DISPLAY:
CPL WDT
SETS CE
MOV R0.#LCDBUF1
MOV DPTR,#SEG
MOV R2,#U6H
DISPAY:
MOV A, @ R0
INC R0
MOVC A,@A+DPTR
ACALL DISPOUT
DJNZ R2,DISPAY
MOV A;#00000000B
ACALL DISPOUT
CLR CE
NOP
NOP
SETB CE
MOV R2,#06H
DISPB:
MOV A,@R0
INC R0
MOVC A,@A+DPTR
ACALL DISPOUT
DJNZ R2,DISPB
MOV A,#10000000B
ACALL DISPOUT
CLR CE
RET
DISPOUT:
CLR SDI
MOV R3,#08H
DISPC:
RRC A
JNC DISPD
SETB SDI
DISPD:
SETB SCL
CLR SCL
CLR SDI
DJNZ R3,DISPC
RET
SEG:
DB 0FCH,60H,0DAH,0F2H,66H,0B6H,0BEH,0E0H
DB 0FEH,0F6H,0EEH,3EH,9CH,7AH,9EH,8EH
DB 0FDH,61H,0DBH,0F3H,67H,0B7H,0BFH,0E1H
DB 0FFH,0F7H,0EFH,3FH,9DH,7BH,9FH,8FH
DB 00H,01H
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