摘要
基于树莓派、USB-hub、USB/串口转换器和Linux操作系统设计一种串口服务器。本文重点介绍了该串口服务器的硬件结构,以及软件架构和3个主要任务的详细设计方法。该串口服务器带有多个串口,具有支持多总线、传输距离远、传输协议多样、低成本及低功耗的特点,已成功应用到工业现场的信号采集和设备监控中,满足长期稳定和实时的性能要求。
A kind of serial server is designed based on Raspberry Pi,USB-hub,USB/serial converter and Linux operating system.This paper elaborates the software/hardware structures and the design methods of three main tasks in software design.The serial server has multiple serial ports and supports multiple bus.It has long transmission distance,multiple transport protocols,low cost and low power consumption.The serial server has been successfully applied to the signal acquisition and device monitoring in the industrial field.It can meet the requirements of stability and real-time performance.
出处
《单片机与嵌入式系统应用》
2014年第10期72-75,共4页
Microcontrollers & Embedded Systems
