brief introduction： CAN chip is a chip with CAN bus structure, CAN bus network is mainly hung on CAN_H and CAN_L, each node realizes signal serial differential transmission through these two lines, in order to avoid signal reflection and interference, but also need to connect 120 ohm terminal resistor between CAN_H and CAN_L, but why 120 ohm?That's because the cable has an intrinsic impedance of 120 ohms.The CAN transceiver is responsible for the conversion between the logic level and the signal level.CAN

CAN(Controller Area Network)

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