Embedded file system design method

The invention relates to the technical field of embedded technologies, and especially relates to an embedded file system design method. The method comprises: an embedded file system using flash as a storage space to divide a flash storage space into a space information block, a file description block and a data block; a space information block identifying the use condition of each page of the flash space; a file description block recording file information, a data block storing file data, the embedded file system operating hardware downwards through a specified equipment interface and being inbutt joint with an application upwards through a file system interface. The design of low coupling with the hardware and the application is achieved, and the embedded file system can be convenientlytransplanted into embedded systems of all platforms. Compared with the prior art, the embedded file system achieved through the embedded file system design method can enable an application program todynamically create, delete