System Of Updating Firmware And Method Thereof, And Method Of Creating Firmware

A method of updating firmware, wherein the method allows a firmware updating operation to be performed on firmware stored in an electronic device having a firmware storage module stored with a first firmware version and a second firmware version each at least having image header file data comprising a cyclic redundancy checksum and an image header file creation time, the method comprising the steps of:

• obtaining new firmware upon receipt of an instruction for executing a firmware update;
• checking the cyclic redundancy checksum of the new firmware for an error, and going to the next step upon determination that the cyclic redundancy checksum of the new firmware is error-free;
• determining whether the first firmware and the second firmware have an abnormality according to the cyclic redundancy checksum of the first firmware and the second firmware so as to lock, upon determination of the presence of an abnormality in one of the first firmware and the second firmware, the abnormality-stricken firmware as target firmware for replacement, and comparing, upon determination of the absence of abnormity in the first firmware and the second firmware, the first firmware with the second firmware in terms of the image header file creation time thereof so as to define target firmware by locking the first firmware or the second firmware, whichever has earlier said image header file creation time, and ending the firmware updating operation upon determination of the presence of an abnormality in both the first firmware and the second firmware;
• and
• replacing the locked target firmware with the new firmware so as to complete performing the firmware updating operation on firmware stored in the electronic device.

A method of creating firmware for use with a system of updating firmware, comprising:

• presetting a maximum length of a data stream for firmware storage;
• combining kernel file data and file system data to create temporary file data;
• creating image header file data comprising a cyclic redundancy checksum and an image header file creation time;
• adding the image header file data to the temporary file data so as to form firmware;
• and
• determining whether the actual length of the data stream stored in the firmware is less than the preset maximum length of the data stream for firmware storage so as to increase, upon affirmative determination, the length of the data stream of the temporary file data until the actual length of the data stream stored in the firmware equals the preset maximum length of the data stream for firmware storage.