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MSP430F5437A: Is MSP430F5437A protected from modification by secured process?

Hyungjae Cho
Prodigy 210 points
Part Number: MSP430F5437A

Hello,

I will use this part(MSP430F5437A) for a commercial product.

I found the following information from MSP430 BSL.

If the device is secured by disabling JTAG, it is still possible to use the BSL. Access to the MSP430 MCU
memory through the BSL is protected against misuse by the BSL password.

Can this features of MSP430F5437A cover the following issues?

- protecting the flash from any external reading or modification after the production phase

- not being modified or overwritten on production phase

- no option for the chip start from an alternated code source 

Thanks, HJ

  • 0
    TI__Expert 6635 points

    Hi HJ,

    If JTAG is disabled, the only way to access the MCU memory is by providing the correct BSL password. If an incorrect BSL password is given, the FRAM memory is erased. Does this answer your question?

    Thanks,

    Mitch

  • 0 in reply to Mitch Ridgeway
    Prodigy 210 points

    Yes. Thank you for your answers. 

    Also, if I disable JTAG, I think it prevents a device from running an alternated code instead of an original code, because nobody can't flash any program without a password.

    Regards, HJ

    And is there any option for the chip start from an alternated code source 

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