FLASH data storage initial address searching method

By employing a two-stage lookup strategy and a sector pre-erasure mechanism, the problem of low lookup efficiency in traditional FLASH memory is solved, enabling fast and accurate address positioning and improving the storage performance and stability of avionics equipment.

CN121209795APending Publication Date: 2025-12-26JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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Patent Information

Application Number
CN202511416610.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2025-12-26

AI Technical Summary

Technical Problem

Traditional FLASH memory is inefficient when looking up the starting address, especially in scenarios with large storage capacity or frequent writes, which affects the system response speed and overall efficiency, making it difficult to meet the high real-time requirements of modern avionics systems.

Method used

A two-stage search strategy is adopted: the first stage quickly locates the target sector through polling, and the second stage uses binary search within the sector to accurately locate the address. Combined with the sector pre-erasure mechanism and setting a minimum search unit, a balance between search accuracy and efficiency is ensured.

Benefits of technology

It significantly improves address lookup speed and system response capability, ensuring high efficiency and reliability of FLASH storage operations in avionics equipment, and adapting to the needs of different application scenarios.

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Abstract

The invention belongs to the field of aviation electromechanics, and relates to a FLASH data storage initial address searching method. According to the method, a two-stage strategy of positioning a sector first and then performing binary search in the sector is introduced, so that the speed of searching the FLASH storage address is remarkably improved, the problem of low search efficiency which puzzles the industry for a long time is solved, and the overall performance and reliability of FLASH data storage are greatly improved. The improvement is particularly suitable for avionics equipment with strict requirements on real-time performance and stability.
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