單片機(jī)多機(jī)通信匯編語言源程序

ID:314934 · 發(fā)表于 2018-4-23 23:01

傳送：
ORG  0000H
LJMP MAIN
ORG  0100H
ORG  0003H
MAIN:MOV SCON,#80
   ORL PCON,#80H
   CLR TI
SENT: MOV DPTR,#T
      MOV R3,#1
      MOV R0,#00
LOOP:MOV  A,R0
   MOVC A,@A+DPTR
      LCALL DELAY
   MOV SBUF,A;·￠Ëí
WAIT:JBC TI,CON
   SJMP WAI
CONT: INC R0
   DJNZ R3,LOO
      CLR A
      SJMP SENT


TAB: DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH

DELAY:MOV R6,#05H
  DL3:MOV R4,#0FAH
  DL2:MOV R5,#0F6H
  DL1:DJNZ R5,DL1;246us
   DJNZ R4,DL2;￡¨246+4￡©*250=62500us
   DJNZ R6,DL3;62500*16=1s
      RET
      END
接收：
ORG  0000H
LJMP MAIN
ORG  0003H
ORG  0003H
MAIN:MOV P1,#3FH
      MOV  SCON,#80
      ORL  PCON,#80H
      MOV  R7,#12
      SETB REN
      CLR RI
WAIT:JBC  RI,REA
   SJMP WAIT
READ:MOV A,SBU

   MOV P1,A
      DJNZ  R7,WAIT
      SJMP  WAIT
   END

ID:117850 · 發(fā)表于 2018-4-29 08:46

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單片機(jī)多機(jī)通信匯編語言源程序