摘要
基于PowerPC的嵌入式系统在网络通信应用方面具有不可替代的优势,论文基于Freescale公司的MPC8360E Pow-erQUICC II Pro处理器设计多网口嵌入式终端系统,实现系统启动、网络数据交换和存储等功能。系统由MPC8360E基本系统、电源模块、存储模块和网络接口模块及UART接口、编程接口等模块组成。论文针对PowerPC控制器及网络接口芯片的抗干扰要求,讨论了电源电路的抗干扰设计、重要信号线的阻抗匹配、未使用信号的合理处理及PCB的抗干扰处理等关键问题。经测试该系统能够可靠地工作,完成网络通信功能。
Embedded system, based on PowerPC, has an irreplaceable advantage in the network communication.The paper designs an embedded multi-port network terminal system based on MPC8360E PowerQUICC II Pro processors of Freescale, which can startup and has the function of network data exchange and storage.The system consists of the basic system of MPC8360E, power modules, memory modules, network interface modules and UART interfaces, programming interfaces and so on.According to the anti-interference requirements of PowerPC processors and the network interface chip, key issues, which are the anti-interference of power circuit, impedance matching of important signal transmission line, reasonable processing of unused signals, anti-interference processing of PCB and so on, are discussed.The system, which has been tested, can reliably work and complete the network communication function.
出处
《微计算机信息》
2010年第23期169-171,共3页
Control & Automation