The function of serial communication port in protocol tester was analyzed and a programmable multi-protocol serial communication interface circuit was designed.
分析了网络协议测试仪的串行通信接口功能，设计了一种可编程多协议串行接口电路。
Moreover, the design of interface circuit between McBSP and MAX3140 and communication test software based on RS-485 communication protocol are presented.
给出了接口的硬件电路和基于RS - 485通信协议的通信测试软件设计。
The system is composed of GPRS network technology, serial interface RS-232/RS-485 transmission protocol, network communication protocol and anti-disturbance circuit design.
本系统涉及GPRS网络技术、串口RS-232/RS-485传输协议、网络通讯协议、系统抗干扰电路设计等相关技术。
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