The problem in the communication between DSP and PC based on RS-485 is presented, and the solution of common-mode disturbance and EMI which are generated by incorrect ground connection is stated.

DSP与PC机的通讯以RS-485为基础，分析了RS-485总线在组网过程中因地线的不正确连接引发的共模干扰和EMI问题，并提出了解决方法。

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EPP is an answer to the problem of high speed, bi directional data communication between PC and data collection and conditioning system.

增强型并行口接口协议解决了PC与数据采集系统间的高速双向数据通信问题。

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This paper points out the problem of UART data communication between ADMC401 and PC, and the realizable scheme of high data communication is provided.

指出ADMC401与PC机进行异步数据通信存在的问题，进行分析并给出一种实现ADMC401与PC机之间进行高速可靠的数据传输方案。

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