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介绍了如何从RS -2 32信号线上高效率地取得电源 ,如何实现RS -2 32接口与RS - 485 /RS - 42 2接口的智能转换。同时也给出了具体的硬件设计及软件设计方法。
Describes how to obtain power efficiently from RS-232 signal line and how to realize intelligent conversion between RS-232 interface and RS-485 / RS-42 2 interface. Also given the specific hardware design and software design methods.