experient 7.asm

单片机只是别人的东西

MOV     TL1,#250
MOV     TH1,#250
ANL     TMOD,#0F0H
ORL     TMOD,#00100000B
SETB    TR1

MOV     SCON,#11010000B

SETB    REN
SETB    ES
SETB    EA
CLR     ET1

MOV     A,KEYNAME
MOV     C,P
MOV     TB8,C
MOV     SBUF,A

PROC    UART
UART:
     PUSH       ACC
     PUSH       PSW
     JNB        T1,NEXT1
     CLR        T1
NEXT1:
      JNB       RI,EXIT
      CLR       RI
      MOV       A,SBUF