In the paper,a firmware update strategy suitable for resource compact embedded devices is designed,which uses file difference and LZO compression algorithm to generate update packages,divides the storage space into BootLoader areas and application areas,realizes decompression and differential solution in BootLoader,accomplishes update of application.Finally,the experiment results on STM32 platform show that this update strategy can reduce the amount of data transmission and reduce the memory utilization of embedded devices.
Key words
embedded device /
LZO /
file difference
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