hi,
first, sorry about the used of the initial name. Craig , next time i would use the full name as this mail.
for the int1, i thick it has define in the #include part.
the purpose of this code is to recieve message from computer via serial port adn display it on the lcd. the message will be store in memory for use when the interrupt rountine finish.
the interrupt rountine will activate the computer so that the computer can start record the voice message from visitor when the interrupt button first press. the interrupt rountine finish when the interrupt button is press.
hal albach, thanx for your opinion.