• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 40 subscribers
  • Views 619 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC3220: Protected Memory area for Unique ID - parameters

Alberto Soattin
Genius 16905 points

Part Number: CC3220

Hi Support,

is it possible to identify in CC3220SF an area of memory (32 byte) to be used for Unique ID or parameters which is never re-written during OTA / UniFlash re-prog?

Thanks and regards,

Alberto

  • 0
    TI__Mastermind 27605 points
    HI Alberto,

    The OTA process does not have to overwrite the whole filesystem, so you should be able to retain permanent files through OTA. The Uniflash reprogramming is a different story, since the whole FS is erased in the process. Perhaps I can suggest using the unique device identifier of the device:
    ConfigOpt = SL_DEVICE_IOT_UDID;
    ConfigSize = sizeof(App_CB.lockUDID);

    ret = sl_DeviceGet(SL_DEVICE_IOT, &ConfigOpt, &ConfigSize, App_CB.lockUDID);

    where App_CB.lockUDID is just an array of 16 bytes.


    -Aaron