标题: 数码管显示代码 [打印本页]

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作者: 176210    时间: 2020-12-25 19:45
标题: 数码管显示代码
ORG 0000H
MAIN:MOV A,34H
     MOV DPTR,#TAB
         MOVC A,@A+DPTR
MOV P2,#7FH
MOV P0,A
ACALL DELAY
MOV P2,#0FFH

MOV A,31H
MOV DPTR,#TAB
MOVC A,@A+DPTR
MOV P2,#0BFH
MOV P0,A
ACALL DELAY
MOV P2,#0FFH

MOV A,31H
MOV DPTR,#TAB
MOVC A,@A+DPTR
MOV P2,#0DFH
MOV P0,A
ACALL DELAY
MOV P2,#0FFH

MOV A,30H
MOV DPTR,#TAB
MOVC A,@A+DPTR
MOV P2,#0EFH
MOV P0,A
ACALL DELAY
MOV P2,#0FFH

MOV A,32H
MOV DPTR,#TAB
MOVC A,@A+DPTR
MOV P2,#0F7H
MOV P0,A
ACALL DELAY
MOV P2,#0FFH

MOV A,30H
MOV DPTR,#TAB
MOVC A,@A+DPTR
MOV P2,#0FBH
MOV P0,A
ACALL DELAY
MOV P2,#0FFH

AJMP MAIN

DELAY:MOV R3,#1
LOOP4:MOV R4,#10
LOOP5:MOV R5,#100
LOOP6:DJNZ R5,LOOP6
DJNZ R4,LOOP5
DJNZ R3,LOOP4

RET
TAB:DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH;         
END

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