串口从机程序.txt

实现简单的串口传输工作! 有数据检验,汇编程序!

		ORG 0000H
		LJMP MAIN
		ORG 0023H
		LJMP INT
		ORG 0030H
MAIN:   MOV PCON,#80H
        MOV SCON,#90H
	    SETB EA
	    SETB ES
		SJMP $

INT:    JNB RI,LOOP6
        CLR RI
		MOV A,SBUF
		MOV C,RB8
		JC LOOP4
		ORL C,RB8
		JC LOOP5
LOOP3:  MOV P1,A
        MOV A,#00H
		MOV SBUF,A
		CLR ES
END2:   RETI
LOOP4:  ANL C,RB8
        JC LOOP3
LOOP5:  MOV A,#0AAH
        MOV SBUF,A
		SJMP END2
LOOP6:  CLR TI
        SJMP END2
		END