a.asm

单片机 双机通讯 单片机双机通讯单片机 双机通讯 单片机双机通讯

	    ORG 0000H
start:      MOV TMOD,#20H
             MOV TL1,#0E8H
             MOV TH1,#0E8H
             MOV PCON,#00H
             mov p3,#0FFh
             SETB TR1
            mov scon,#11111000b

            setb TB8
fadizhi:    mov A,#0FFH
WAIT:       jbc ti,NEXT
            sjmp  WAIT
NEXT:       JBC RI,NEXT2
            SJMP NEXT

NEXT2:      mov a,sbuf
            xrl a,#0FFh  ;二次验证
	    jz attach
	    jmp start
attach:	 	clr tb8
                MOV SBUF,#10
           lop: jbc ti,LLLL
                jmp lop
LLLL:	    	end