topic Re: Security Protection on NXP Cortex M4 in Kinetis Microcontrollers

Security Protection on NXP Cortex M4

jakubpankau — Mon, 05 Dec 2016 17:12:44 GMT

Hi,

I'm working on a project that uses a Cortex M4 microcontroller (MK64FN1M0VLL12) and I would like to learn more on how to protect the device from unlawful access. Mainly I want to protect my code from being accessed and copied? Is that possible? I know there is flash protection and FPROT but it look like it is more to protect the device from accidentally overwriting or erasing? Am I correct? So is there any other way to protect the flash from being read or accessed? Any help or suggestions is greatly appreciated.

Thanks,

Jakub

Re: Security Protection on NXP Cortex M4

mjbcswitzerland — Mon, 05 Dec 2016 23:36:38 GMT

In the FTFL_FSEC field you can disable EzPort and JTag, either by securing the device (requiring a mass erase to recover them) or even to never allow access again.

This is the setting that you need.

Regards

Mark

Re: Security Protection on NXP Cortex M4

Hui_Ma — Wed, 07 Dec 2016 02:55:54 GMT

There is an application note AN4507 about Kinetis Security and Flash protection features.

Wish it helps.

Have a great day,
Ma Hui
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