CCS/TMS320C6746: same MAC address number

tony jian

Prodigy 220 points

Part Number: TMS320C6746

Tool/software: Code Composer Studio

01C1 4008h DIEIDR0 Die Identification Register 0，

01C1 400Ch DIEIDR1 Die Identification Register 1，

01C1 4010h DIEIDR2 Die Identification Register 2，

01C1 4014h DIEIDR3 Die Identification Register 3 are unique a encode on per a chip of TMS320C6746 ?

over 3 years ago

0 Mukul Bhatnagar over 3 years ago

TI__Guru* 78285 points

Hi Tony

Please clarify what is the use-case you are trying to enable with this?

These registers are primarily for TI's internal testing and tracking. While a combination of these registers may give you a unique value per chip , it is not the intended purpose to be used as a unique id.

Regards

Mukul

0 tony jian over 3 years ago in reply to Mukul Bhatnagar

Prodigy 220 points

hi Mukul

I want to use these registers to generate a set of MAC addresses.

thank you for your help

regards

tony

0 Mukul Bhatnagar over 3 years ago in reply to tony jian

TI__Guru* 78285 points

Hi Tony

Ok, i have not seen this as the prior use-case or an intended use-case. I have seen previous questions from you on the MAC topic, where we did clarify that it is software programmable.

You should be free to use what makes most sense for your end application. the die ids are not intended to serve as unique id, but can potentially be leveraged for it. We will not share any additional details on these registers beyond what you see in our documentation. These are for TI internal test purposes.

Hope that helps and clarifies.

Regards

Mukul

0 tony jian over 3 years ago in reply to Mukul Bhatnagar

Prodigy 220 points

hi Mukul

thank you!

Does each chip of TMS320C6746ship form factory have unique cord ? If so，it is impossible to generate a unique MAC address depending on the inherent code on the chip.

regards

tony

0 Mukul Bhatnagar over 3 years ago in reply to tony jian

TI__Guru* 78285 points

Hi Tony

>>Does each chip of TMS320C6746 ship form factory have unique cord

No.

>>If so，it is impossible to generate a unique MAC address depending on the inherent code on the chip.

die-id register combination is likely your best bet.

Regards

Mukul

0 tony jian over 3 years ago in reply to Mukul Bhatnagar

Prodigy 220 points

Hi Mukul

Thank you a lot!

Regards

tony

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CCS/TMS320C6746: same MAC address number