Method and device for storing data of set top box

Abstract

The invention belongs to the technical filed of data storage, and provides a method and device for storing data of a set top box. The method comprises the steps of marking out a first storage area and a second storage area in Flash, wherein the first storage area and the second storage area are equal in data storage capacity; carrying out partition on the data storage capacity of the first storage area and the data storage capacity of the second storage area respectively, and marking out a plurality of data blocks, wherein the data blocks are identical in type and size of data; determining the current data blocks of the first storage area and the current data blocks of the second storage area when data are written in the set top box; carrying out reading-in alternatively on the current data blocks of the first storage area and the current data blocks of the second storage area. According to the method and device for storing the data of the set top box, partition of the data blocks is carried out on the two storage areas, the data are written in the data blocks of different storage areas alternatively, and therefore the problem that the space of the Flash is wasted, the Flash is damaged easily due to frequent erasing and writing and data are lost in power outage when the erasing and writing are carried out on the Flash in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of data storage, and in particular relates to a data storage method and device for a set-top box. Background technique [0002] During the operation of the set-top box, some data needs to be dynamically updated and stored in the flash memory (English: Flash), such as dynamic update, system encryption key (English: Key), user setting data, etc. The traditional method is to store these data in a fixed address in Flash with a certain data type (usually custom), and use a specific interface to read and write access to this address. Flash has a certain lifespan. When a certain number of times of erasing and writing is exceeded, Flash will be broken. Therefore, continuous read and write access to a fixed address will increase the probability of damage to this area. To some extent, it will reduce the service life of the set-top box. [0003] The erasure of Flash is generally based on blocks (English: Block), so t...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a set-top box data storage method and device to solve the existing problems in the prior art, such as waste of Flash space, easy damage of Flash due to frequent erasing and writing, and loss of data due to power failure during erasing, resulting in abnormal operation of the set-top box.

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