5744P JTAG secure

[FKS]

Hello, dear all，I have a question.

After I enable the JTAG encryption function, if I forget the password, is there any operation that can restore it to the unlocked state?

 I found in the MPC5744P Reference Manual that there is a description about the factory erase mechanism. Does this mean that if I forget the password, I can use this mechanism to unlock it? If so, could you please provide some examples or notes to show me how to use the factory erase mechanism?

Thank you very much. I am eagerly looking forward to your reply.

[FKS]

Let me add that this is the part I found in the reference.

FKS_0-1748426091495.png

[davidtosenovjan · Accepted solution]

This feature is not available for users, it can only be erased in NXP factory.

[FKS]

OK. Thank you for your reply. Finally, I would like to confirm with you again. If the password is really forgotten, is there really no way to restore the chip to the unlocked state?

[davidtosenovjan]

Unfortunately, it is not. It is one of way to prevent unauthorized access to the device.

[FKS]

Thank you very much for your answer.