TMS320F28379S: Secure boot

Yoni Wortzman

Prodigy 100 points

Part Number: TMS320F28379S
Other Parts Discussed in Thread: TMS320F28388S

We have a requirement to support a secure boot with a tms320f28379s device .

Does the 28379 support it?

Please direct me to the relevant documentation

over 1 year ago

0 Hareesh Janakiraman over 1 year ago

TI__Guru* 95315 points

Yoni,

This device supports multiple security options (DCSM, EXEONLY memory etc). Please refer to 3.13 Dual Code Security Module (DCSM) and ROM Code and Peripheral Booting chapter in the TRM (www.ti.com/lit/SPRUHX5). If you could provide more information on exactly what you are trying to accomplish, we can help you better.

Please refer to this thread as well:

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1325007/tms320f28377d-replicate-secure-boot

0 Hareesh Janakiraman over 1 year ago

TI__Guru* 95315 points

Secure Boot is not supported on 28379S but it is supported devices such as TMS320F28388S

0 Yoni Wortzman over 1 year ago in reply to Hareesh Janakiraman

Prodigy 100 points

Thanks Hareesh,

Looking in TI latest specifications, SPRS881K – AUGUST 2014 – REVISED FEBRUARY 2024, it is mentioned in page 216 that one of its key features is secure boot and also that it uses AES128 CMAC algorithm to ensure code that runs
on the device is authentic, this is what we need.

Can you provide us more detailed on this feature and also specific document?

0 Hareesh Janakiraman over 1 year ago in reply to Yoni Wortzman

TI__Guru* 95315 points

Yoni,

The below post confirms that this feature is not available in 28379. It could be that the feature was inadvertently added to the datasheet table. I will check.

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1002388/tms320f28379d-28379d-cmac-implementation-or-a-similar-algorithm-for-code-protection

Please see the following application report on secure boot: https://www.ti.com/lit/pdf/spract3

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TMS320F28379S: Secure boot