甲机发送.asm

单片机实验 多机通讯之甲机发送乙机接收

       ORG 4000H
       LJMP MAIN
       ORG 4050H
  MAIN:MOV TMOD,#20H
       MOV TH1,#0F3H
       MOV TL1,#0F3H
       SETB TR1
       MOV SCON,#50H
       MOV PCON,#80H
       MOV P1,#00H
       MOV R1,#50H
       MOV R7,#3
 
   TRS:MOV A,@R1
       MOV C,P
       MOV TB8,C
       MOV SBUF,A
  WAIT:JBC TI,CONT
       AJMP WAIT
  CONT:INC R1
       DJNZ R7,TRS
  HERE:SJMP $
       END