基于NAND Flash的转译层的设计

Translation layer design based on NAND Flash memory

基于NAND Flash的嵌入式存储系统以其轻巧便携、读写速度快等特点成为当前嵌入式存储系统的主流配置。但由于固有坏块以及在擦、写过程中随机产生的坏块影响了NAND Flash的实际应用,所设计的NAND Flash的驱动转译层具有坏块管理机制并实现上层文件系统的连续读写功能。

NAND Flash-based embedded storage system for its characteristics of lightweight portability and fast read and write become the mainstream configuration of the embedded storage system.Due to the inherent bad blocks and generation random bad blocks during erase or program operation,which affects the practical application of NAND Flash.In this paper,a flash translation layer of device driver is designed,which has bad block management and implements a continuous read and write capability for file system.