Kinetis MicrocontrollersのトピックAbout KE06 secure

About KE06 secure

cyesman — Mon, 23 Sep 2024 03:07:44 GMT

I want to secure the KE06 for prohibiting to readback the code from MCU outside. The RM sheet show the "FTMRE_FSEC" Bit SEC. But it is readonly. How can I handle this?

Re: About KE06 secure

xiangjun_rong — Mon, 23 Sep 2024 11:24:36 GMT

Hi,

As the following fig, if you replace the red rectangle 0xFFFE_FFFF with (0xFFFF_FFFF, or 0xFFFD_FFFF,0xFFFC_FFFF), it is okay.

Hope it can help you

XiangJun Rong

Re: About KE06 secure

cyesman — Mon, 23 Sep 2024 12:25:53 GMT

Do we had sample demo on the Keil MDK. I had tested to add some code in the"system_MKE06Z4.c". It reported faut

Re: About KE06 secure

xiangjun_rong — Tue, 24 Sep 2024 05:49:14 GMT

Hi,

The Keil tools has the flash configuration, pls refer to the fig.

Hope it can help you

BTW, this is SDK web site:

https://mcuxpresso.nxp.com/en/welcome

XiangJun Rong

Re: About KE06 secure

cyesman — Tue, 24 Sep 2024 07:49:08 GMT

Thanks!

Re: About KE06 secure

cyesman — Tue, 24 Sep 2024 07:51:22 GMT

Another question. The SEC Bit contains four types. Do those had any detail explantion?

Re: About KE06 secure

xiangjun_rong — Tue, 24 Sep 2024 08:54:47 GMT

Hi,

As the following Fig, when the SEC bits are 00, 01, 11, they are the same, the chip will be in secure mode, the SWD port is blocked. when the SEC bits are 10, the chip is in unsecure mode, user can read via SWD port.

Hope it can help you

Xiangjun Rong