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分析了CAN总线中继器的重要作用,介绍了采用CAN控制器SJA1000设计的CAN总线中继器的软硬件实现方法。在了解了中继器的功能和CAN网络间数据转换过程的基础上,基于集成CAN总线控制器的单片机和带隔离的CAN总线收发器介绍了一种硬件电路实现更简洁、软件程序流程更清晰、功能更强大的中继器。
The important role of CAN bus repeater is analyzed. The hardware and software implementation of CAN bus repeater designed by CAN controller SJA1000 is introduced. Having understood the function of the repeater and the data conversion process among CAN networks, a hardware circuit based on the integrated CAN bus controller and a CAN bus transceiver with isolation is introduced to achieve a more concise and clearer software program flow , More powerful repeater.