DRA821U-Q1: is there any different to DFU and bootup between Security SoC and non-security SoC?

Max Chen1

Intellectual 705 points

Part Number: DRA821U-Q1

Tool/software:

We are building samples with DRA821U4T security and non-security parts.

DFU for both SoC same procedures ? no key required, right?
can both of them bootup same way ?

Thanks

Max

1 month ago

0 Gokul Praveen 1 month ago

TI__Genius 11320 points

Hi Max,

I have informed the corresponding expert to have a look into this query. Thanks in advance for your patience.

Regards
Gokul

0 Diwakar Dhyani 1 month ago

TI__Guru 56635 points

HI Max,

Procedure to flash the images using DFU interface remain the same, things which changes is the boot images.

You have to use different TIFS binary depending on the security device sub type HS-FS,HS-SE, along with TIFS binary change you need to use signed binary for HS device.

On HS-FS you need to used boot loader binary/image (tiboot3.bin) signed with rom-degenerate key whereas on HS-SE device you need to use the image signed with customer root trust keys.

Ref:

Regards
Diwakar

Processors

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DRA821U-Q1: is there any different to DFU and bootup between Security SoC and non-security SoC?