单片机1的通信程序.asm

基于Proteus的51系列单片机设计与仿真

     ORG    00H
     AJMP   START
START:MOV   SP,#60H
      MOV   SCON,#50H
      MOV   TMOD,#20H
      MOV   TH1,#0E6H
      SETB  TR1
      MOV   30H,#0FFH
READ: MOV   A,P1
      CJNE  A,30H,SAVE
      JMP   READ
SAVE: MOV   30H,A
      MOV   SBUF,A
WAIT: JBC   TI,READ
      AJMP  WAIT
      END