基于MPC860T的网络测试分析仪的设计

The design of network analyzer based on MPC860T

随着计算机网络和数据通讯技术的发展,如何进行有效、便捷的网络维护成为一个备受关注的课题.本文中介绍了一种基于通讯处理器MPC860T的网络测试分析仪的设计方案.首先结合广域网测试的基本方法介绍了仪器的整体功能和总体设计.其次,从硬件选型、主要芯片功能和在该设计中的使用特点等角度介绍了该仪器的硬件设计.在硬件设计中使用了双CPU协调工作、功能强大的接口芯片和复杂可编程逻辑器件等先进技术.最后,概括介绍了以实时操作系统VxWorks为核心的软件整体架构和一个应用实例.

With the development of the technology in computer network and data communication, it becomes a thesis worthy of attention with regard to how to maintain the network efficiently and conveniently. A design of the network analyzer based on the CPU MPC860T is introduced in this paper. First, The whole function and design of the analyzer and the basic methods in WAN testing is introduced.Second, The hardware design of the analyzer in different aspects such as the selection of hardware components, the function of the primary chips and their key characteristics in this design is introduced. Such advanced technologies as the cooperation of dual-CPU has been used in the hardware design which also involves in the use of powerful interface chip and CPLD. Finally, the whole software structure based on real-time OS VxWorks is summarily introduced and an application example is given. The successful accomplishment of the network analyzer provides a effective means for the test and maintenance of WAN.