s6-3.asm

手把手教你学单片机实验程序

	ORG 0000H
	LJMP MAIN
	ORG 030H
MAIN:	MOV P1,#0DBH
	ACALL DEL
	MOV P1,#06DH
	ACALL DEL
	MOV P1,#0B6H
	ACALL DEL
	AJMP MAIN
DEL:	MOV R5,#04H
DEL1:	MOV R6,#0FFH
DEL2:	MOV R7,#0FFH
DEL3:	DJNZ R7, DEL3
	DJNZ R6, DEL2
	DJNZ R5, DEL1
	RET
	END