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本文介绍了一种基于新型USB接口芯片CH372的CAN总线网络适配器系统的设计,提出了一种使用USB接口实现CAN总线网络与计算机连接的方案。利用芯片CH372可在不了解任何USB协议或固件程序甚至驱动程序的情况下,轻松地将并口或串口产品升级到USB接口。该系统在工业现场较之以往的系统,可以更加灵活、高速、高效地完成大量数据交换,并可应用于多种控制系统之中,具有很大的应用价值。
This paper introduces a design of a CAN bus network adapter system based on the new USB interface chip CH372 and proposes a scheme of using the USB interface to connect the CAN bus network to a computer. The chip CH372 easily upgrades parallel or serial products to the USB interface without knowing any USB protocol or firmware or even drivers. Compared with the previous systems, this system can accomplish a large amount of data exchange more flexibly, efficiently and speedily and can be applied to many kinds of control systems, which has great application value.