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TMS320F280039C: Secure boot by CMAC

Wayne Huang
Genius 15635 points
Part Number: TMS320F280039C
Other Parts Discussed in Thread: C2000WARE

Dear Champs,

I am asking this for our customers.

The user wants to implement CMAC for secure boot by referring to the app note "Secure BOOT on C2000 Device" on F2838x.

https://www.ti.com/lit/an/spract3/spract3.pdf?ts=1695451488030&ref_url=https%253A%252F%252Fwww.google.com%252F

Questions:

1. Is there any similar example code for F28003x like that for F2838x in C2000ware?

F2838x:

~/driverlib/f2838x/examples/c28x/boot

F28003x??

2. On F2838x, AES HW accelerator is for CM, but on F28003x, AES HW accelerator is for C28x. 

Therefore, should we refer to CPU1 example of the above F2838x or CM example of the above F28003x?

In our understanding, the definition for CPU1 and CM are different.

For example, CM can access byte, but CPU1 cannot.

What are the specific differences when migrating it from F2838x onto F28003x?

3. If there is still no such example in question 1 above, would you please migrate it from F2838x onto F28003x?

~/driverlib/f28003x/examples/c28x/boot

  • 0
    TI__Expert 7191 points

    Hi Wayne,

    Wayne Huang said:
    Is there any similar example code for F28003x like that for F2838x in C2000ware?

    Currently there is no examples on F28003x.

    Wayne Huang said:
    Therefore, should we refer to CPU1 example of the above F2838x or CM example of the above F28003x?

    You can refer to the CPU1 example of F2838x

    Wayne Huang said:
    If there is still no such example in question 1 above, would you please migrate it from F2838x onto F28003x?

    I can forward this query to the ROM team.

    Thanks

    Aswin

  • 0 in reply to Aswin P
    TI__Genius 15635 points

    Dear Aswin,

    2) Why do we refer to CPU1 of F2838x as it uses SW AES?

    3) Yes, please forward this to the ROM team to support migrating it from F2838x onto F28003x. There are many customers who need this. If needed, we can discuss for opportunities offline by emails with you and/or someone who is in charge of this.