diankenneth

ORG 0050H
START: MOV SP,#60H
MOV PCON,#80H
MOV SCON,#50H
MOV TMOD,#20H
MOV TH1,#0E5H
MOV TL1,#0E5H
SETB TR1
LOOP: MOV A,#0FH
MOV SBUF,A
JNB TI ,$

CLR TI
JMP LOOP
END