Dynamic Storage Management Method for Embedded System Based on Single Type Memory

Abstract

The invention provides a dynamic storage management method of an embedded system based on a single-type memory. The embedded system comprises a starting procedure storage area prestored with starting loading information and bootstrap of a core and a file system, and a system RAM (random access memory) area configured with the core and the file system. The method includes loading the core and the file system based on the starting information after the bootstrap is started; marking an occupied internal memory area and an available memory area in the system RAM area; and finally querying whether the system RAM area has a continuous available internal memory block or not when updating or migration demands are received by the system, if so, writing updating or migration data of the core or the file system, and if not, organizing and combining fragments in the available internal memory area to the continuous available internal memory block, and then writing the updating and migration data of the core and the file system into the internal memory block. By the dynamic storage management method, boundary between internal memories and external memories is blurred, storage frame is unified, external memory management is brought into internal memory management, and problems such as inconvenience in management and the like are solved.

Description

technical field [0001] The invention relates to the technical field of embedded systems, in particular to a dynamic storage management method of an embedded system based on single-type memory. Background technique [0002] Embedded system is an application-centric, computer-based computer system with tailorable software and hardware, which meets the strict requirements of the application system on function, reliability, cost, volume, and power consumption. With the rapid development of embedded technology and semiconductor memory technology, consumers have put forward higher requirements on the startup speed, real-time operation, power consumption and other aspects of embedded products. Therefore, simplifying the boot process of embedded operating systems, shortening the boot time, and reducing system power consumption are of great significance to winning the market position of embedded products. [0003] The functions of embedded devices are mainly implemented and expanded...

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Problems solved by technology

[0007] In view of the above-mentioned shortcoming of prior art, the object of the present invention is to provide a kind of dynamic storage management method of the embedded system based on single-type memory, be used to solve the slow speed when updating of embedded system in the prior art, update data volume, etc. It is very easy to cause the failure of the embedded system to update the system and the system is not available, and as the new type of memory is applied to the embedded system, the performance of the embedded system is reduced due to the limited erasing and writing times of the new type of memory and the shortened service life caused by the uneven use.

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