阐述了当前嵌入式系统固件升级中对固件数据进行校验和匹配校验的方法,并对实际工程应用中存在的一种缺陷进行了分析,针对这种缺陷提出了一种将校验信息编译进固件内部指定地址的方法,通过使用这种方法能够避免该缺陷,并能在升级过程中提前判断固件是否匹配,提高了升级效率。

In the paper,the method of checking and matching the firmware data in the current firmware upgrade of embedded system is introduced,and analyzes a defect existing in practical engineering application.Aiming at this defect,this paper puts forward a method of compiling the check information into the specified address of the firmware itself,which can avoid the defect.In addition,it can determine whether the firmware matches in advance during the upgrade process,which improves the upgrade efficiency.