?? 速度檢測(cè)0.asm
字號(hào):
ORG 0000H
SJMP MAIN
ORG 000BH
SJMP INTT2
ORG 0030H
MAIN:MOV 51H,#00H
SETB EA
SETB ET2
MOV TMOD,#06H
MOV TH2,#0FFH
MOV TL2,#0FFH
SETB TR2
ACALL XIANSHI
SJMP $
INTT0:MOV R0,#51H
MOV A,@R0
INC A
MOV @R0,A
ACALL XIANSHI
RETI
XIANSHI:MOV 33H,#08H
MOV R0,#51H
MOV SCON,#00H
CLR P2.7
MOV DPTR ,#TABLE
CLR TI
FA: MOV A,@R0
MOVC A,@A+DPTR
; CLR P2.7
MOV SBUF,A
JNB TI,$
CLR TI
INC R0
DJNZ 33H,FA
RET
DELAY :MOV 45H,#0FH
LOOP1:MOV 46H,#0FH
LOOP2:DJNZ 46H,LOOP2
DJNZ 45H,LOOP1
RET
TABLE:DB 3FH ,06H,5BH,4FH,66H,6DH
DB 7DH,07H,7FH,6FH,80H
END
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