Description: CAN international application of the most extensive one of the fieldbus. Initially, CAN was designed as a vehicle environment of micro-controller communications, in the vehicle electronic control devices to exchange information between ECU, the automotive electronic control network. CAN is a major way over the serial communication bus, the basic design of the demand for a high-speed, high resistance to electromagnetic interference, but also can detect the mistakes. When the signal transmission distance to 10 Km, CAN can provide up to 50 Kbit/s data transmission rate. CAN is due to the high real-time performance, therefore, CAN has in the automobile industry, aviation industry, industrial control, security protection, and other fields have been widely applied.
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