閃存作為最常用的嵌入式存儲設備，其管理和訪問技術對整個系統的性能有著較大
的影響。目前嵌入式系統中廣泛采用的閃存管理軟件在可移植性、靈活性方面都存在不足。因此本文在分析了這些管理軟件現存問題的基礎上提出了一種比較合理的閃存I/O 軟件分層結構，并通過對軟件的模塊化設計與實現證明了該分層結構在移植性、通用性方面的優勢。
關鍵詞 嵌入式系統閃存 I/O 軟件策略與機制分離
Design and Implementation of Flash I/O Software in Embedded System Cheng Quanzhou1 Zhang Li1 Feng Xiang2 (1.Computer Science Department in Nanyang Normal University, Nanyang 473000 2.College of Computer and Communication in Hunan University, Changsha 410082 ) Abstract: Flash memory is the most common memory used in embedded system, so the management and access technology of flash memory have great effects on performance of the whole system. At present, most flash management software adopted in embedded system, however, are insufficient in portability and agility. So this article proposes a more rational layered architecture of flash I/O software on the base of the analysis of current problem and at last proves that this architecture has some advantage in terms of portability and universality by its modular design and implementation.
Keywords: Embedded system Flash memory I/O software Policy and mechanism separation