Method of managing blocks fo flash memory suitable for flexible correspondence between logic block and physical block

摘要

A method of managing blocks of a flash memory device suitable for a flexible correspondence between logic blocks and physical blocks of the flash memory device is provided. First, a sum of good physical blocks and defective physical blocks is calculated. Next, the good physical blocks and the defective physical blocks are distributed into a number of predetermined sectors of a flash memory, wherein each predetermined sector has a predetermined number of temporary blocks in order to equalize the sum of logic blocks and the temporary blocks with the physical blocks in each predetermined sector. The distribution information is recorded into a good physical block. When executing to initialize said flash memory, a control chip locates and reads the block where the distribution information is stored and stores the distribution information into a SRAM of said control chip to create a block correspondence chart in the predetermined sector to manage said flash memory.