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AM2634: Content of the Regions 2 and 4 in ROM

Francois Charlot
Mastermind 28137 points
Part Number: AM2634

Hello,

The AM263x TRM refers to 2 ROM regions named "Region 2 - ROM Read-only Exec" and "Region 4 - ROM User Access" (section 5.7.1 Memory Layout/MPU).

What are these regions for? Are they used by some of TI SDK components? Could they be used directly by the customer application?

Thank you.


Best regards,
François.

  • +1
    TI__Expert 8520 points

    Hi Francois, Sorry for the delayed response on this.

    Region 2 - ROM Read-only Exec -> This actual ROM area.

    Region 4 - ROM User Access -> ROM uses this area to to download the SBL (Like to keep stack and global data etc) , post that it can be used by customer application.

    Best Regards, Shiv

  • 0 in reply to Shivasharan Nagalikar
    TI__Mastermind 28137 points

    Hi Shiv,

    Thank you for the response—not so slow by the way, less than 1 day!

    So, region 4 is actually 16KB RAM accessible by the SBL, then the user, correct? That's good to know! I would suggest to put a more meaningful description in the TRM than "ROM User Access" which could be interpreted as being ROMy, not RAM.


    Best regards,
    François.