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Contributor II

hello,

    <1>  is the following protected in the red box write protection?

pastedImage_1.png

    <2>  if partition has CSE key sapce but no save any CSE key, then enable security, debugger also  can not remove security?? 

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NXP TechSupport
NXP TechSupport

Hello Kui Wu,

1. This refers to the Flash protection, please see below the description of Program Flash Protection Registers.

pastedImage_1.png

2. Yes, in this case, it is not possible to mass erase the MCU.

pastedImage_2.png

AN12130 Production Flash Programming Best Practices for S32K1xx MCUs

Regards,

Daniel

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NXP TechSupport
NXP TechSupport

Hello  Kui Wu,

If you could provide the name of the NXP product you are using and which document did you extract this information, I will gladly help you with your question.
Have a great day,
Fabian

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Regards,
Fabian
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Contributor II

My device is S32k146UAVLQ and extract this informatio form S32K11X-14X.pdf   chapter 5.2.1.1

thank you!

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NXP TechSupport
NXP TechSupport

Hello Kui Wu,

1. This refers to the Flash protection, please see below the description of Program Flash Protection Registers.

pastedImage_1.png

2. Yes, in this case, it is not possible to mass erase the MCU.

pastedImage_2.png

AN12130 Production Flash Programming Best Practices for S32K1xx MCUs

Regards,

Daniel

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Contributor II

Dear Daniel,

      thanks for your answer in time! I have marked  this answer is right!