基于ARM-WinCE平台的时钟同步设计  

Design of clock synchronization based on ARM-WinCE platform

作　　者：周飞[1] 栾军英[1] 杨通强[2] 赵金辉[1] 

机构地区：[1]军械工程学院火炮工程系 [2]中国人民解放军66440部队

出　　处：《电子设计工程》2011年第11期177-180,共4页Electronic Design Engineering

摘　　要：时钟同步是分布式系统的核心技术之一,为实现基于ARM-WinCE嵌入式系统平台的测试仪器组建分布式测试系统,在介绍IEEE1588精确时钟协议基本原理的基础上,提出了使用具有IEEE1588协议硬件支持功能的DP83640以太网物理层收发器在基于ARM-WinCE的嵌入式系统平台上实现时钟同步的设计方案,给出了硬件设计的接口电路和软件设计框架。经测试该方案可达到不低于1μs的同步精度。Clock synchronization is one of the key techniques of distributed system.In order to construct a distributed measurement system by measuring instrument based on ARM-WinCE platfom,the principle of IEEE1588 precision time protocol is introduced,and a scheme is proposed to implement clock synchronization based on ARM-WinCE embedded system platfomby using DP83640 Ethernet PHY transceiver which supports the IEEE1588 protocol in hardware.The design of hardware interface circuit and framwork of software is given.The designed system is tested and the result shows that the accuracy is better than 1μs.

关 键 词：时钟同步 IEEE1588 ARM WINCE DP83640 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]