【作者】 郝长海；

【导师】 丁朋林；

【作者基本信息】 天津大学 ， 通信与信息系统， 2006， 硕士

【摘要】 随着网络设备的不断发展,以通信处理器和网络处理器为核心的嵌入式系统得到了广泛的应用。为了研究、跟踪当前的先进技术,我们采用了Motorola公司生产的PowerPC系列CPU MPC8260搭建了网络通信平台,以实现以太网通信、串口通信、ATM通信,并预留了扩展接口,为进一步的研发打下基础。MPC8260是一款先进的网络通信处理器。它采用双内核结构,集成了32位微处理器和通信处理模块以及多种外设接口,具有强大的通信和网络协议处理能力,广泛应用于各种高端通信和网络产品,如交换机、路由器等。VxWorks操作系统是当前应用广泛的嵌入式实时操作系统,具有高可靠性,高实时性,裁减性好的特点。基于MPC8260和VxWorks的网络通信平台的实现,大大缩短了网络通信设备的开发时间。论文的第一章介绍了MPC8260和嵌入式操作系统的特点以及基于MPC8260的嵌入式网络通信平台的功能特点和总体结构;第二章详细讲述了通信平台的外部存储器扩展、寄存器设置;第三章介绍了通信接口的设计;第四章介绍了嵌入式操作系统VxWorks并进行了VxWorks操作系统的移植;第五章研究了VxWorks网络系统的特点以及加载,编写部分网络协议的过程。更多还原

【Abstract】 With the development of network equipment, the embedded system which is based on communication processor and network processor is widely used. To research and master advanced design technology, we design a network communication platform using the PowerPC series CPU MPC8260 produced by Motorola. The platform can realize Ethernet communication, RS232 serial communication and ATM communication. Furthermore, there is much interface left for further research.MPC8260 is an advanced network communication processor. It is a 32 bit microprocessor integrated with a communication processor module and various network communication interfaces, so it has powerful capability on network communication, and it can be used to design high performance network equipments such as network switch and router. VxWorks operation system is widely used because of its high reliability, good real-time ability and easy to transplant. The network communication platform based on MPC8260 and VxWorks can significantly reduce the time-to-market development stages.The first chapter of the paper introduces the characters of MPC8260 and embedded operation stystem, also the whole design scheme is introduced. The second chapter introduces the design of external bus expansion and the internal registers. The third chapter introduces the design of communication interface. The forth chapter is primary on the transplant of the embedded operation system VxWorks. The last chapter emphasizes on the characteristic of the network system of VxWorks and introduces some program.更多还原