Firmware update system, method and building method of firmware of firmware update system

Abstract

The invention relates to a firmware update system, a method and a building method of a firmware of the firmware update system. The firmware update system is a firmware storage module of an electronic device which is provided with a first firmware and a second firmware, the first firmware and the second firmware are provided with header file data which at least comprise information on cyclic redundancy check sum and information on image header file building time. When a new firmware is updated, whether the first firmware and the second firmware are abnormal is judged according to the information on the cyclic redundancy check sum in the first firmware and the second firmware. If one firmware is judged to be abnormal, a new firmware is used for replace the abnormal firmware, and if the first firmware and the second firmware are both judged to be normal, the information on the image header file building time in the first firmware and the second firmware is compared, and then a new firmware is used to replace the firmware with the building time earlier. Therefore, the invention can ensure that even if the firmware updating operation fails, one normal firmware can be maintained to perform the subsequent firmware updating operation.

Description

technical field [0001] The present invention relates to a firmware update technology. More specifically, it relates to a firmware update system, method and firmware update system that can ensure that a normal firmware can be retained for subsequent firmware update operations when the firmware update operation fails. The firmware construction method. Background technique [0002] In today's various computer application equipment, the operation of many hardware is started and executed by firmware (Firmware), such as CD-ROM, modem, etc., and the firmware storage device has gradually developed from an early device that cannot be updated to a device that can be updated. Updated devices, such as non-volatile memory such as flash read-only memory (hereinafter referred to as Flash ROM) and electronically erasable read-only memory (EEPROM), are therefore required to return the device to the original device for firmware update operations. The way that the factory performs the firmwar...

AI Technical Summary

Problems solved by technology

[0005] However, unexpected abnormal situations may occur during the update of the firmware controlled by the user’s operation. Or Linux and other operating systems have some errors (bugs) in themselves, which are highlighted during the firmware update process (such as a sudden system restart), resulting in errors during the firmware update

[0006] When an abnormal situation occurs during the firmware update process, because the original firmware has been overwritten and cleared during the firmware update process, the device (such as a CD-ROM, etc.) or the system where the firmware is located cannot continue to operate, so that the user cannot continue. Write the update file downloaded from the Internet to the device or system, resulting in the device or system where the firmware is located must be sent back to the original factory for repair and update, causing inconvenience to the user and trouble to the original manufacturer.

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