MAIN BOARD SYSTEM AND METHOD FOR SETTING MAIN BOARD SYSTEM

摘要

A method for setting a main board system is disclosed. According to the method, a first pin setting signal is received, and a board module is determined if it is a master module or a slave module according to the received first pin setting signal. Then, a potential of a third pin is detected when the board module is the slave module, and the master module is determined whether it exists according to the detected potential of the third pin. After that, the slave module enters a first mode if the master module doesn't exist, and the slave module enters a second mode if the master module exists.