ORG 0000H
LJMP MAIN
ORG 000BH
LJMP T0ISR
ORG 0030H
MAIN:
MOV TMOD,#01H
MOV TH0,#HIGH(65536-50000)
MOV TL0,#LOW(65536-50000)
SETB TR0
SETB ET0
SETB EA
MOV A,#0FEH
MOV R2,#10
MOV P0,A
SJMP $
T0ISR:
CLR TR0
MOV TH0,#HIGH(65536-50000)
MOV TL0,#LOW(65536-50000)
SETB TR0
DJNZ R2,T0E
MOV R2,#10
CLR C
RLC A
MOV P0,A
JNZ T0E
MOV A,#0FEH
T0E:
RETI
END
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