发布网友
共2个回答
热心网友
ORG 0000H
JMP BEGIN
ORG 000BH
LJMP T0INT
ORG 0030H
;---------------------------------------
TABLE: ; 共阴极数码管显示代码表
DB 3FH,06H,5BH,4FH,66H ;01234
DB 6DH,7DH,07H,7FH,6fh ;567
;---------------------------------------
BEGIN:
MOV SP,#5FH
MOV TMOD,#01H
MOV TH0,#3CH
MOV TL0,#0B0H
SETB TR0
SETB ET0
SETB EA
MOV R2,#20
MOV P1,#0FEH
MOV DPTR,#TABLE
MOV A,#1
MOVC A,@A+DPTR
MOV P0,A
MOV R3,#1
SJMP $
;---------------------------------------
T0INT:
CLR TR0
MOV TH0,#3CH
MOV TL0,#0B0H
SETB TR0
DJNZ R2,T0INTE
MOV R2,#20
INC R3
MOV A,R3
CJNE A,#9,T0INT1
MOV A,#1
T0INT1:
MOV DPTR,#TABLE
MOVC A,@A+DPTR
MOV P0,A
T0INTE:
RETI
END
热心网友
这个很好做吧 仿真成功就可以了么