一种基于Flash的VxWorks操作系统快速引导方法设计

摘要

Pointing to the condition that the embedded system is lack of NVRAM and the write& read speed request is not strict,a fast boot method of operation system based on Flash is designed on the platform of Vxworks operating system,the method uses NOR Flash storage for taking place of NVRAM to store boot information,and a 1+1 fault-tolerant mechanism is used. The test results show that it realizes the fast boot of operation system,and can effectively reduce the erase frequency, extend the service life of Flash,improves the system stability.%针对在嵌入式系统中缺少NVRAM并对读写速度要求不是很高的情况下，以VxWorks操作系统Workbench3．1为平台，设计了一种基于Flash的VxWorks操作系统快速引导方法，该方法通过用NOR Flash存储器代替NVRAM保存引导信息，并运用了1+1容错机制，经验证，该方法实现了VxWorks操作系统的快速引导，并有效降低了Flash的擦除频率，延长了Flash寿命，提高了系统的稳定性。