METHOD FOR ASYNCHRONOUS SERIAL COMMUNICATION OF MICRO CONTROLLER

摘要

PURPOSE: A method for an asynchronous serial communication of a micro controller is provided to connect interface circuits to an asynchronous parallel port and recognize a connection status of a corresponding interface circuit through a parallel port by preparing desired interface circuits. CONSTITUTION: A method for an asynchronous serial communication of a micro controller comprises the following steps. A connection path of an interface circuit connected with a receiving end of an asynchronous serial communication port is connected to a predetermined parallel port of a micro controller. A connected interface is recognized by confirming an input level of the predetermined parallel port. The communication is performed according to a corresponding protocol of the recognized interface.