Kinetis MicrocontrollersのトピックRe: Flexbus decryption support for code execution

Flexbus decryption support for code execution

bbenj — Wed, 02 Jan 2019 13:13:41 GMT

Hello,

Does FlexBus supports (seamless) decryption for code execution on external flash?

Especially for the K6x series. I read that code execution from flexbus is possible, but can it be encrypted?

Thank you,

Best Regards,

Benjamin

Re: Flexbus decryption support for code execution

Hui_Ma — Thu, 03 Jan 2019 08:44:32 GMT

Hi,

Kinetis Flexbus doesn't has seamless decryption for code execution on external flash.

Customer could select i.MX RT series product, such as RT1060 which support this feature.

Have a great day,
Mike

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Re: Flexbus decryption support for code execution

bbenj — Thu, 03 Jan 2019 10:43:39 GMT

Hi,

Thank you, the i.MX RT series seems to fit our needs. One thing I couldn't find definitive answer for though: can I use JTAG to download and debug code to/from the external flash on FlexSPI/QSPI (which supports on-the-fly decryption)?

Is there any reference document on FlexSPI/QSPI usage with encryption?

Also, does any of the LPC series have external flash with encryption support (with code execution, etc)?

Thank you,

Best Regards,

Benjamin

Re: Flexbus decryption support for code execution

Hui_Ma — Fri, 04 Jan 2019 01:16:42 GMT

Hi Benjiamin,

Please post a new question thread at i.MX product sub-community about FlexSPI/QSPI security application. Thanks for understanding.

I know LPC5500 has this feature with internal Flash.

Have a great day,
Mike

Re: Flexbus decryption support for code execution

bbenj — Fri, 04 Jan 2019 09:56:43 GMT

Ok, thank you!

Have a nice day,

Benjamin