Communication circuit switching method and communication circuit switching circuit

The invention provides a communication circuit switching method and a communication circuit switching circuit. The communication circuit switching circuit comprises a detection circuit, a control circuit, and a switching circuit. The detection circuit is used for detecting the level signal characteristic of the transmitting end of a communication bus. The control circuit is electrically connectedto the detection circuit and used for generating a communication circuit switching signal according to the level signal characteristic. The switching circuit is electrically connected to the control circuit and used for switching the communication circuit accessing to the communication bus according to the communication circuit switching signal. The communication circuit switching method and the communication circuit switching circuit solve the problem in related arts that different communication circuits cannot be compatible, and realizes the technical effect of adaptive switching of the communication circuit. 本发明提供了