How to read user key status

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How to read user key status

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wang_q4
Contributor I

Dear all,

May I know if the user key has been written。

Such as can i know the user key CSEC_KEY_2 whether is empty?

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lukaszadrapa
NXP TechSupport
NXP TechSupport

Hi,

the only option I can see is to use the key for some dummy operation and check if error ERC_KEY_EMPTY is returned or not.

Regards,

Lukas

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