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CC2430: reprogramming parts and possible OTP areas

Lenio Cacula
Genius 15890 points
Part Number: CC2430

If a customer decides to re-use CC2430 parts by reprogramming them, is there any OTP or EPROM area that could interfere with a new application? In other words, are there any risks in using parts that have been programmed before?

Thank you!

  • 0
    TI__Guru**** 202106 points

    Hi Lenio,

    You can review Section 12.4 of the CC2430 datasheet.  If the Debug Lock bit, DBGLOCK, is set to zero then all debug commands are disabled except for CHIP_ERASE, READ_STATUS, and GET_CHIP_ID.  It is also possible to lock flash area (LSIZE) and the boot sector page (BBLOCK).  Note that CHIP_ERASE can be used to clear the Debug Lock bit.

    As noted on its product page, the CC2430 is not recommended for new designs and should not be used for Zigbee or IEEE 802.15.4 certification.

    Regards,
    Ryan

  • 0 in reply to Ryan Brown1
    TI__Genius 15890 points

    In other words, nothing overrides CHIP_ERASE, correct? 

    The customer is reusing parts for an older project and needs to know if they can be reprogrammed. All the documentation indicates so, but I need certainty that no surprises will emerge during the process.

    Thank you!

  • +1 in reply to Lenio Cacula
    TI__Guru**** 202106 points

    CHIP_ERASE is a debug command and cannot be disabled.  The customer should be capable of reprogramming these devices.

    Regards,
    Ryan