基于VxWorks的FLASH存储器实时存取管理方案  

A Method of Real- Time Access and Management to FLASH Memory Based on VxWorks OS

作　　者：王凯[1] 宋华伟[1] 杭德全[1] 

机构地区：[1]郑州解放军信息工程大学国家数字交换系统工程技术研究中心,450002

出　　处：《微计算机信息》2005年第08Z期21-23,共3页Control & Automation

基　　金：国家863计划基金项目"第三代移动通信cdma20001x系统集成"的资助。项目编号:MII-C3G-02-20/863-317-03-01-02-20

摘　　要：VxWorks操作系统提供文件系统来访问和管理Flash存储器,这种方式不能满足实时写入和系统可控的要求。本文提出一种通过接管系统时钟中断来控制FlashMemory读写操作和基于管理区的简单可控文件管理方案,实现移动通信系统在不影响业务模块运行的前提下,满足对实时性和可控性要求。VxWorks OS offers file system to access and manage FLASH Memory. But this mode can＇t meet specified requirements such as real time access and controllability. In this paper, a new method is proposed to solve these problems. The novel feature is using system clock interrupt handler to operate Flash Memory, and using memory management area to implement a simple and controllable file management function. This solution can achieve its goals of real time access and controllability without influence on the system traffic module.

关 键 词：闪存 系统时钟 中断 文件系统 

分 类 号：TP36[自动化与计算机技术—计算机系统结构]