查询中断.txt

51单片机流水灯程序

	ORG 0000H
	JMP MAIN
MAIN:
   	MOV TMOD,#01H
	MOV TH0,#4CH
	MOV TL0,#00H
	MOV A,#0FEH
	MOV P1,A
	MOV R0,#00H
	SETB TR0
WAIT:	JNB TF0,WAIT
	CLR TF0
	MOV TH0,#4CH
	MOV TL0,#00H
	INC R0
	CJNE R0,#0AH,WAIT
	MOV R0,#00H
	RR A
	MOV P1,A
	JMP WAIT
END