RS232 Communication Program-EEWORLD

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; XP version 232 communication program, 9600 bit rate, 11.0592 crystal
;*******************************************************************************

ORG 0000H
AJMP main0
ORG 0030H
main0: MOV 20H,#00H
MOV TMOD,#22H ;Set timer working mode
MOV SCON,#40H
MOV TH1,#0FAH ;Speed 9600
MOV PCON,#80H
SETB TR1
SETB REN ;Allow receiving
ajmp start
start: mov dptr,#ok ;Look up
table senda: clr a ;
movc a,@a+dptr
cjne a,#'$',senda_0
ajmp $ ;Stop when encountering $.
senda_0:mov sbuf,a
JNB TI,$ ;Is the serial transmission of one frame finished?
CLR TI ;
inc dptr ; pointer plus one
Ljmp senda
ok: db 0dh,0ah,0dh,0ah,"If I have one more day to live, I will be your girlfriend that day. Do I have one more day to live? .. No. So, it's a pity. I am still not your girlfriend in this life. If I had wings, I would fly down from heaven to see you. Do I have wings? .. No. So, it's a pity. I can no longer see you from now on.",0dh,0ah,'$'
end

Keywords：RS232 Reference address：RS232 Communication Program

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