Device and method for performing lossless compression on embedded program

Abstract

The invention discloses a device and a method for performing lossless compression on an embedded program and is a file organization mode which is applicable to an embedded system. The device comprises a file retrieval unit, a file compression unit, a file check unit and a file decompression and restoration unit, wherein the file retrieval unit is used for searching files which are included in a file root directory step by step, recording information such as the path, name and size of the file which meets requirements and acquiring the information of the total amount of all files by retrieval; and the file decompression and restoration unit is used for downloading or burning the file which is generated by compression to the embedded file system and decompressing and restoring the compressed file in the embedded system. The method comprises the following steps of: retrieving, compressing, checking, decompressing and restoring the embedded program. The invention has the advantages that: the loading speed of embedded files is improved; program access application program interfaces (API) are unified; data can be accurately accessed; and various kinds of loading modes are provided.

Description

technical field [0001] The invention relates to the field of computer technology, more specifically, a file organization method applied to embedded systems, and a device and method for nondestructively compressing embedded programs. Background technique [0002] With the rapid development of modern electronic technology, embedded products can be seen everywhere, and in order to shorten the difference in processing capabilities between embedded systems and PCs, various technologies specially developed for embedded systems have emerged, and embedded file systems are embedded The interface of the format storage part is especially important. Now the embedded system has the following problems: [0003] 1. The embedded file systems include FAT, YAFFS, and JFFS, and there are also direct operation methods for directly reading and writing storage blocks. Due to the differences in the organization of various files, the API interface adopted by the application program to call the fi...

AI Technical Summary

Problems solved by technology

Due to the differences in the organization of various files, the API interface adopted by the application program to call the files stored in the file system of different formats is not consistent, and the error mechanism is also different, so in terms of software readability and maintainability very inconvenient

[0004] 2. The data integrity guarantee of the embedded file system varies with different storage hardware. In order to speed up the access speed, there is no complete verification like a PC, so there may be a risk of accessing data errors, and the file storage and reading cannot be guaranteed. correctness

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