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AM2634: HSM功能调用失败

Part Number: AM2634

您好:

        我目前在调试HSM功能时,在SBL中可正常使用HSM相关功能,进入APP后调用HSM功能失败,经过调试发现,在APP中与HSM通信时,HSM读取APP提供的数据时读出来为全0,如下图所示:

        

        请问这是什么原因导致的,在SBL中与APP中调用的函数都是一致的。