Category Archives: CAN Protocol

What is BUS Systems And Why Required? The usual way of doing so is to use a bus system. What are the difference between an OBD-II protocol and a CAN setup? OBD-II is a higher-level protocol used for diagnostic purposes. OBD-II can use one of (many) different bus systems to transfer diagnostic data from and to your car.Continue reading “Vehicle Bus System & CAN Protocol Part-1”

Types of CAN Communication Protocol High-Speed/FD CAN: High-speed CAN is by far the most common physical layer. High-speed CAN networks are implemented with two wires and allow communication at transfer rates up to 1 Mbit/s. Other names for high-speed CAN include CAN C and ISO 11898-2. Typical high-speed CAN devices include antilock brake systems, engineContinue reading “CAN Protocol Part-2”

Message Addressing And Identification It is worth noting once again that there is no explicit address in the CAN messages. Each CAN controller will pick up all traffic on the bus, and using a combination of hardware filters and software, determine if the message is “interesting” or not. In fact, there is no notion ofContinue reading “CAN Protocol & CAN FD Part-3”