METHOD, CAN BUS DRIVER, AND CAN BUS SYSTEM FOR RECOVERING A CLOCK FREQUENCY OF A CAN BUS

摘要

The present invention proposes a method, a CAN bus driver, and a CAN bus system for recovering a clock frequency of a CAN bus, said CAN bus comprising a master device having a clock frequency generator for producing the clock frequency, the master device being coupled to a slave device. A phase-locked loop is used in the slave device, the phase-locked loop using a prespecified bit patten as reference signal, and the bit pattern is extracted from the frames transmitted by the master device via the bus system.