Embedded online upgrading error-proof detection method

Abstract

The invention relates to an embedded online upgrading error-proof detection method. The embedded online upgrading error-proof detection method comprises the steps that: after an upgrading instructionis received by equipment, the equipment sends out verification parameters based on agreement; an upgrading data sender processes the verification parameters and sends upgrading data; and the equipmentperforms data correctness detection on the upgrading data after receiving the upgrading data, performs data legality detection on the upgrading data on the premise that the data is correct, and starts and operates the upgrading data to finish upgrading if the data is legal. In the embedded online upgrading error-proof detection method, the legality of the current firmware is judged by writing a fixed confirmation parameter into a specified offset position, in the implementation process, CRC verification is carried out on each packet of message and the whole packet of data, meanwhile, verification confirmation is carried out on the parameters of a specified program position, so as to guarantee that the content transmitted in upgrading is legal data while guaranteeing that the data in the transmission process is correct, and the upgrading is safe and reliable.

Description

technical field [0001] The invention relates to the technical field of electrical digital data processing, in particular to an embedded online upgrade error prevention detection method. Background technique [0002] With the development of electronic technology, communication technology and computer technology, embedded systems are widely used in various fields. On the contrary, the requirements for system functions, performance and scale of embedded devices are also increasing. In the development and design of embedded software, often For applications involving online program upgrades or remote firmware updates, developers must be able to maintain and upgrade the system in a timely manner according to customer needs, prolong the service life of the system, and improve system performance. [0003] During the upgrade process of the embedded system, the program code sent by the server is received, and the program code is solidified in the flash area. Generally speaking, the se...

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Problems solved by technology

[0007] The present invention solves the problem that in the prior art, in the embedded online upgrade process, only the accuracy of the transmitted data can be identified, but the legitimacy of the transmitted content cannot be judged, which leads to risks in the online upgrade of the embedded system, and provides a An optimized error-proof detection method for embedded online upgrade

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