By:
Masud-ul-Hasan
24
Ex4-4: Buzzer Interface (contd.)
DELAY: MOV R7, #100
;for 100 loops
AGAIN: MOV TH0, #D8H
;10000µsX100=1sec
MOV TL0, #F0H
;-10000=D8F0H
SETB TR0
WAIT: JNB TF0, WAIT
CLR TF0
CLR TR0
DJNZ R7, AGAIN
RET
END