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Original question:

CC2538: Block the CPU for reading a specific region of flash

CC2538: Unique identifier for CC2538 MCU

Nikos Karamolegkos1
Prodigy 50 points
Part Number: CC2538
Other Parts Discussed in Thread: Z-STACK, FLASH-PROGRAMMER

Is there any unique device identifier for the CC2538? I would like to be immutable, and only to have access to read in order to identify and confirm the device

  • 0
    TI__Guru**** 202096 points

    Hi Nikos,

    The device's unique 64-bit IEEE 802.15.4 MAC address is stored from 0x00280028 to 0x0028002F (512 kB variant) on the information page which is used to store configuration settings and cannot be written or erased.  Z-Stack projects store a local copy from 0x0027FFCC to 0x0027FFD3 to be used for its application, as can be seen in the CC2528.icf linker command file, but this last page of flash can be modified based on CCA and lock bit settings.

    Regards,
    Ryan 

  • 0 in reply to Ryan Brown1
    Prodigy 50 points

    I have not seen anything about this in CC2538 manual. Could you give some reference?

  • 0 in reply to Nikos Karamolegkos1
    TI__Guru**** 202096 points

    This information is not documented in the Datasheet or Technical Reference Manual, and I even needed to amend my first statement after further investigation.  FLASH-PROGRAMMER 2 shows the exact location from which it reads the IEEE 802.15.4 MAC address.

    Regards,
    Ryan