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CC2538 info page

ludovic Wiart
Prodigy 20 points
Other Parts Discussed in Thread: CC2538

Hello,

I search more information about info page of CC2538, I haven't find any documentations about this page.
More precisely about primary IEEE MAC address, if I read it with SmartRF programmer I obtain 04 0E F1 80 00 12 4B 00 (the TI OUI is 00 12 4B) why is it on middle of MAC @ ?

  • 0
    TI__Genius 13620 points

    Which version of SmartRF Flash Programmer are you using? We recently fixed a bug related to the byte ordering of the primary MAC address in the info page.

  • 0 in reply to M
    Prodigy 20 points

    Thanks a lot, with the last version (1.4) the MAC address is in ordering.

    otherwise, I search some informations about this page, beacause I try to modify the secondary address (in code ) and it doesn't work (probably I have forget to do something)
    When I do that with SmartRF Flash programmer It work fine.

    With my code, I want to change the first byte:
    printf(" val : %x \n", ((uint8_t *)IEEE_ADDR_LOCATION_SECONDARY)[0]);
    ((uint8_t *)IEEE_ADDR_LOCATION_SECONDARY)[0]=0xbb;
    printf(" val : %x \n", ((uint8_t *)IEEE_ADDR_LOCATION_SECONDARY)[0]);
    printf(" val : %x \n", ((uint8_t *)IEEE_ADDR_LOCATION_SECONDARY)[0]);

    the first line display my old value ==> 0xaa
    the second printf display my new value ==> 0xbb
    the third printf display the old value ==>0xaa

    I don't know why.

  • 0 in reply to ludovic Wiart
    TI__Genius 13620 points

    The secondary MAC address is located in flash, so you need to use some of the flash write and/or erase functions to modify the value. Remember that when you're modifying a value in flash, you need to erase (the page) to change a bit from 0 to 1.