基于TrueFFS的Flash文件系统在数据获取系统中的应用

The Flash File System Based on TrueFFS Applied in DAQ

Flash器件作为一种非易失存储器件,已经广泛应用在各种嵌入式系统中。但是Flash器件的可擦除寿命有限,需要块擦除等特性,使得在实际应用中,往往需要专用的软件模块,以简化器件的使用,延长寿命。TrueFFS是一种受到VxWorks操作系统支持的FLASH模块。在使用上,对于特定的硬件需要自己编写驱动,并对VxWorks内核做相应的配置。主要介绍了在VxWorks5.4和MotorolaMVME5100上TrueFFS文件系统的开发及配置,以及在BESIII数据获取系统中的应用。

As nonvolatile memory,Flash is widely used in embedded system.But Flash is the limited erasing life,and needs block erased.All this need special soft module in real applications to achieve simple usage and long life.TrueFFS is this kind of module supported by VxWorks.When use it,a driver for hardware and configuration for VxWorks are made by developer.It mainly introduces the developing and configuration of TrueFFS.It is based on VxWorks 5.4 and for Motorola MVME5100 board.And we also introduce its use in BESIII.