一种基于ARM的以太网串口服务器的设计

摘要

This paper puts forward a kind of low cost, high performance Ethemet serial server design of the software and hardware solutions. The server uses Cortex-M3 chip STM32F107VCT6 as the core controller, selects the DP83848CVV Ethernet controller to process network data, and makes use of the communication interface RS232 to transfer serial data. At the same time, the TCP/IP protocol is transplanted into uCO/OS-Ⅲ real-time op- erating system, and in this system builds the embedded system real-time tasks, and that the server can work in TCP/UDP mode between Ethernet interface and the serial port for write to each other. Research proves that the server can transmit data real-time, steady, and can work with web page set valid IP address for the corresponding data communications.%本文提出了一种低成本、高性能的以太网串口服务器的软硬件设计方案。该服务器以Codex．M3的芯片STM32F107VCT6为核心控制器，采用DP83848CW以太网控制器处理网络数据，使用通信串行接口RS-232传输数据。同时，将TCP／IP协议移植到uCO／OS-Ⅲ实时操作系统中，并用嵌入式系统建立实时多任务，使串口服务器能够以TCP／UDP模式在网口和串口端进行相互通信。研究证明，本服务器能实时、稳定地传输数据，并可以与设置好IP地址的网页进行相应数据的通信。