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MSPM0L1227: FWEPROTMAIN fail, CSC need ?

Wilson Liang2
Intellectual 490 points

Part Number: MSPM0L1227

Tool/software:

Hi Sir

I'm trying to set up write protection, and I've configured FWEPROTMAIN to 0xFFFFFFFF. According to the specifications, this should enable write protection for the flash memory from 0 to 0x8000 (32KB). However, I tested it and I can still write data, as shown in the image below. Is there anything else that needs to be set? Also, is there a way to enable write protection for both banks from 0 to 32KB? Or is it necessary to enable CSC?

thanks.

  • 0
    TI__Mastermind 27735 points

    Hi Wilson,

    Wilson Liang2 said:
    According to the specifications, this should enable write protection for the flash memory from 0 to 0x8000 (32KB).

    The FLASH protection is parts of security feature and only take effect if it configrued properly during CSC stage:

    Wilson Liang2 said:
    Also, is there a way to enable write protection for both banks from 0 to 32KB? Or is it necessary to enable CSC?

    CSC is must to be enable for this write protection.

    If want to protect both banks from 0-32KB, I think the first method can be applied, enable it via NONMAIN configruation.

    - Note, if NONMAIN flash static write protection is enabled, CSC is not must to have for flash protect.

    B.R.

    Sal