| WinCE系统中MLC型闪存的编程支持研究 |
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| 引用本文： | 张纪艳,张萌,张伟伟.WinCE系统中MLC型闪存的编程支持研究[J].微机发展,2010(2):60-63,67. |
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| 作者姓名： | 张纪艳 张萌 张伟伟 |
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| 作者单位： | 东南大学国家专用集成电路系统工程中心; |
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| 摘 要： | 基于WinCE6．0操作系统，以实现WinCE下驱动程序对MLCNAND闪存的支持及其驱动程序性能的提高为目的。介绍了NAND闪存驱动程序的整体架构；对Fish抽象层的功能及地址映射关系的建立进行分析，讨论了引用版本号的概念为MLCNAND闪存建立地址映射关系的过程，使Flash抽象层程序可以支持MLCNAND；对Flash介质驱动层进行分析，介绍了采用两片编程技术提高驱动性能的原理与实现，及4位EOC校验的步骤；经对两片编程与单片编程方式的写速度测试，结果表明前者比后者速度提高了92．2％。
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| 关 键 词： | MLCNANDFlash NANDFlash驱动 地址映射 两片编程 4位ECC |
Research in Programming Support for MLC NAND Flash in WinCE System |
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| ZHANG Ji-yan,ZHANG Meng,ZHANG Wei-wei.Research in Programming Support for MLC NAND Flash in WinCE System[J].Microcomputer Development,2010(2):60-63,67. |
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| Authors: | ZHANG Ji-yan ZHANG Meng ZHANG Wei-wei |
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| Affiliation: | ZHANG Ji-yan,ZHANG Meng,ZHANG Wei-wei (National ASIC System Engineering Research Center,Southeast University,Nanjing 210096,China) |
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| Abstract: | Based on WinCE 6.0 operating system,described the whole structure of NAND flash driver.Analyzed the function of flash abstraction layer and the setup of address mapping relationship.Discussed the process of refering to version conception for the setup of address mapping relationship of MLC NAND,make the flash abstraction layer program can support MLC NAND.Analyzed the flash media driver layer program,introduced the theory and realization of two plane program technology for driver performance improvement and... |
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| Keywords: | MLC NAND Flash NAND Flash driver address mapping two plane program 4 bit ECC |
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