关键词: NAND Flash, 虚拟页, 地址映射

Key words: this paper implements a NAND Flash management algorithm based on virtual page address mapping. The algorithm implements the upper layer software accesses NAND Flash without thinking bad block by successive virtual page address through defining a bad block table and a mapping table and making a bad block replacing algorithm and achieving a translation algorithm form virtual page address to real physical page address. It is an efficient address mapping algorithm and it can index data efficiently and take up less SRAM space than ever. It makes the system highperformance and steady and durable.