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Flash-Based Storage in Embedded Systems
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Author(s): Pierre Olivier (Université de Bretagne Occidentale, France), Jalil Boukhobza (Université de Bretagne Occidentale, France)and Eric Senn (Université de Bretagne Sud, France)
Copyright: 2013
Pages: 17
Source title:
Embedded Computing Systems: Applications, Optimization, and Advanced Design
Source Author(s)/Editor(s): Mohamed Khalgui (Xidian University, China), Olfa Mosbahi (University of Carthage, Tunisia)and Antonio Valentini (O3neida Europe, Belgium)
DOI: 10.4018/978-1-4666-3922-5.ch022
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Abstract
NAND Flash memories gained a solid foothold in the embedded systems domain due to its attractive characteristics in terms of size, weight, shock resistance, power consumption, and data throughput. Moreover, flash memories tend to be less confined to the embedded domain, as it can be observed through the market explosion of flash-based storage systems (average growth of the NVRAM is reported to be about 69% up to 2015). In this chapter, the authors focus on NAND flash memory NVRAM. After a global presentation of its architecture and very specific constraints, they describe the different ways to manage flash memories in embedded systems which are 1) the use of a hardware Flash Translation Layer (FTL), or 2) a dedicated Flash File System (FFS) software support implemented within the embedded operating system kernel.
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