Double-region backup image system based on embedded program and starting method

Abstract

The invention provides a double-region backup image system based on an embedded program and a starting method. A CPU and a FLASH of the embedded program-based double-region backup image system are connected with each other through a Local Bus bus, and the CPU completes data interaction between the CPU and a DDR through an internally integrated DDR controller. In the power-on starting process of the embedded device, the CPU end reads the image stored on the FLASH and loads the image into the DDR; And after the image loading is completed, the CPU reads the image data from the DDR and executes the image, and related functions of the embedded device are completed. According to the method and the device, the effectiveness of the double-region image is judged through the image updating state andthe image starting state, so that the correct image can be loaded and operated after being electrified, and the problem that the equipment cannot be started due to the upgrading failure or the upgrading error of the embedded equipment is effectively solved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a dual-area backup image system and a starting method thereof. Background technique [0002] With the continuous development of electronic technology, the software update speed of embedded devices is accelerating at present, so it is necessary to continuously update the software of embedded devices. Existing embedded devices adopt the form of a single image, and only one copy of the image loaded and operated by the device is saved on the storage medium. After the device is powered on, the image is first loaded from the storage medium, and then the image is executed to complete the startup and operation of the device. [0003] If the image is damaged due to abnormal operation, such as abnormal power failure during the product image update process, etc., it will cause the device to fail to load and run the system image correctly after the device runs again, and the device will ...

AI Technical Summary

Problems solved by technology

[0006]During the upgrade process of embedded devices, the power failure of the device occurs from time to time, which may lead to the failure of the device update, and then cause the device to fail to start and run;

[0007] During the upgrade process of the embedded device, the wrong image may be upgraded due to improper operation, which makes the device unable to start and run normally;

[0008]Only one copy of the image is saved on the storage medium. If the image data is damaged, the device will not be able to start and run normally

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