|
ORG 0000H
LJMP MAIN
ORG 002BH
LJMP MS
ORG 0030H
MAIN: MOV T2CON,#09H
MOV TH2,#00H
MOV TL2,#00H
MOV 40H,#00H
MOV 41H,#00H
SETB EA
SETB ET2
SETB TR2
CLR F0
SJMP $
MS: JBC EXF2,NEXT
CLR TF2
MOV R7,#20
SETB F0
RETI
NEXT:MOV 30H,40H
MOV 31H,41H
MOV 40H,RCAP2L
MOV 41H,RACAP2H
JBC F0,MT
CLR C
MOV A,40H
MOV A,30H
MOV R5,A
MOV A,41H
MOV 41H,A
SUBB A,31H
MOV R6,A
RETI
MT: SETB C
MOV A,30H
CPL A
ADDC A,40H
MOV R5,A
MOV A,31H
CPL A
ADDC A,41H
MOV R6,A
RETI
END
请高手调试一下这个程序，总有错，谢谢！ |
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乱乱的，排好版再说吧
