As the most important bus for vehicle communication, CAN bus is closely related to its good anti-interference, error detection mechanism, and no need for clock lines. To become an electronic engineer, you should also master a series of CAN bus technologies such as ISO11898, a series of diagnostic specifications such as ISO14229, chip manuals, programming knowledge, EMC knowledge, and ECU function learning-related automotive knowledge, as well as the AUTOSAR architecture. , Familiar with the function, working principle and implementation method of each CAN module defined in autosar, so as to become a CAN god.