呜声.asm

单片机开发资料光盘-双龙-686M.zip

	ORG	0000H
LP:	MOV	R0,#020H
LP0:	SETB	P2.0
	ACALL	DELY1
	ACALL	DELY1
	CLR	P2.0
	ACALL	DELY1
	ACALL	DELY1
	DJNZ	R0,LP0
	SJMP	LP
DELY1:	MOV	R4,#01H
DELY10:	MOV	R3,#0A0H
	DJNZ	R3,$
	DJNZ	R4,DELY10
	RET
	END