基于Rt-thread的嵌入式串口服务器的设计与实现

Design and Realization of an Embedded Serial Server Based on Rt-thread OS

该文提出了一种高性能、低成本的嵌入式串口联网服务器的设计方案,包括硬件与软件系统设置。硬件方面以LM3S6911微处理器为核心控制器,分别设计了用于完成数据转换功能的核心板和提供接口及测试电路的底板。软件系统进行了嵌入式实时操作系统Rt-thread在LM3S6911上的移植,使用LWIP协议栈完成网络通信,实现了串口联网服务器三种模式下的网口和串口之间的数据转换。试验证明本串口联网服务器能够实时、准确的传输数据。

This paper presents a high performance,low cost embedded serial port server design,including hardware and software system set tings.The hardware with LM3S6911 microprocessor as the core controller,are designed for the completion of the data transformation func tion of the core plate and provide interface and a test circuit board.Software system for embedded real-time operating system Rt-thread in LM3S6911 on the transplant,using the LWIP protocol stack to complete the network communication,the realization of the serial commu nication servers under three modes of network port and serial data conversion.Tests prove that the serial servers can real-time,accurate transmission of data.