| VxWorks系统下的NVRAM To Flash驱动程序设计 |
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| 引用本文： | 蔡卫平,黄小虎,郭晓功. VxWorks系统下的NVRAM To Flash驱动程序设计[J]. 电子工程师, 2007, 33(1): 52-54,64 |
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| 作者姓名： | 蔡卫平 黄小虎 郭晓功 |
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| 作者单位： | 九江职业技术学院电子工程系,江西省九江市,332005 |
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| 摘 要： | NVRAM(非易失性随机存储器)因其具有读写速度快、数据非易失的特点,常用来存取重要数据。在读写速度要求不高的场合,为降低成本,可用现有的Flash存储器来代替NVRAM,这需要提供NVRAM To Flash驱动。但现有的驱动效率不高,写数据速度太慢,给使用者带来不便。基于Vx-W orks操作系统,提出一种新的NVRAM To Flash驱动程序设计方法,该方法实现了NVRAM的两个接口函数,通过减少擦除Flash次数,提高了数据读写速度。
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| 关 键 词： | NVRAM Flash存储器 驱动程序 |
| 收稿时间： | 2006-02-14 |
| 修稿时间： | 2006-04-14 |
Design of the NVRAM To Flash Driver in VxWorks |
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| CAI Weiping,HUANG Xiaohu,GUO Xiaogong. Design of the NVRAM To Flash Driver in VxWorks[J]. Electronic Engineer, 2007, 33(1): 52-54,64 |
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| Authors: | CAI Weiping HUANG Xiaohu GUO Xiaogong |
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| Abstract: | NVRAM is frequently used as a chip for saving important data,because it can be accessed in high speed and it has non-volatile feature.NVRAM can be replaced by flash in a system,but that requires flash memory.In this case a NVRAM To Flash driver is necessary.The current driver's efficiency is low,especially when writing data.Basing on VxWorks operation system,a new method is presented in this paper.The driver contains two interface routines,and its access speed is higher than before because of lower flash erasing frequency. |
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| Keywords: | NVRAM Flash memory driver program |
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