Based On The Can Bus Electronic Control Diesel Ecu Communication Platform

With the electronic controller unit increasing quickly in auto, high-speed and effective communication is requested. Adding its huge advantage, the Controller Area Network will take the place of the RS232 and its use in auto become a certain direction. So far, with the CAN protocol developing, A new standard birthed--J1939. It has become a standard protocol used in truck and bus. This paper mainly describes the principle of CAN and its characteristic, including the function of common-used chip, SJA1000, produced by PHILIPS. The principle, the content and the application of J1939 will also be described in this document in detail, At last, the smallest unit and the basic controller net have been designed. And based on the protocol of J1939, a communication code is programmed and the data communication has realized finally.