Startup method for embedded operation system
An operating system and embedded technology, applied in the direction of program loading/starting, redundant data error detection, response error generation, etc., can solve the problem of no additional production costs, failure to start the machine, slow machine operation, etc. problems, to achieve the effect of low cost and superior product performance
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[0038] At first, explain the core and foundation of the present invention:
[0039] (1) Data storage
[0040] When BOOT is upgraded for the first time, several areas will be divided in the flash, one of which is used to store BOOT data, and the area for storing BOOT is divided into two parts, each storing BOOT data and BOOT backup data; the other area is used to store OS data, this area will also be initialized into two parts, storing OS data and OS backup data respectively.
[0041] (2) BOOT double backup:
[0042] The first part of the storage BOOT partition is used to store BOOT data, (we will refer to this part as BOOT A area later), and the second part is used to store backup BOOT data (we will refer to this part as BOOT B area later) . After BOOT partitions, it will write BOOT data into FLASH and record the check value.
[0043] At each boot after the upgrade, BOOT will first verify the BOOT A area and compare it with the verification value during the upgrade. If the...
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