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CC1352R: Dynamically protect/unprotect Flash sectors

Angel C
Intellectual 360 points
Part Number: CC1352R

Dear support,

I am using Simplelink 4.20 and CC1352R Launchpad for development. My goal is to protect all flash sectors while still being able to (eventually) save some persistent data. In other words, I want to keep the whole flash protected, then in specific situations unprotect->save data->protect.

While CCFG Registers SET_CCFG_CCFG_PROT_* can protect/unprotect the flash sectors indeed, this configuration is static. Is there a way to dynamically manage the flash protection/unprotection or any sort of mechanism to achieve what I am looking for? NVS driver seems not to help much on this.

Thanks in advance.

Regards,

Angel

  • 0
    TI__Guru* 86301 points

    Hi Angel

    I am afraid that there is not way of doing this dynamically as this kind of defeats the point of protecting them in the first place

    BR

    Siri

  • 0 in reply to Siri
    Intellectual 360 points

    Thanks Siri,

    I recall some vendors providing a password-like mechanism to do this dynamically too, that triggered my question. I guess it means all data dynamically saved in flash will always be exposed to R/W no matter what. I should then figure out a way to protect this data from being misused e.g. encryption.

    Anyway, thanks again for your time and clarification.

    Regards,

    Angel