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TMS570LS1227: TMS570LS1227 Flash read protection

Intellectual 320 points

Replies: 3

Views: 91

Part Number: TMS570LS1227

Hi,

I cannot find any information how to protect the flash memory from reading through the jtag interface to prevent third parties to make illegal copies of the electronics.  Is there additional documentation outside the user manual available?   Also how do you enable this protection with CCS?

Kind Regards,

  • Hello,

    TMS570LS1227 includes Advanced JTAG Security Module (AJSM). which provides maximum security to the device’s memory content by allowing users to secure the device after programming.

    Refer to Section 6.21.6 Advanced JTAG Security Module in Datasheet.

    Best regards,
    Miro

  • In reply to Miro:

    Hi Miro,

    thank you, I was looking for AJSM but in the user manual not in the data sheet :-)

    Would you know if there is a way of writing and unlocking this register in CCS?   Or are there any command line programming tools available (preferred option)?

    Kind Regards,

  • In reply to hagen wegner:

    Hello,

    The AJSM information is available on our SafeTI Private forum which is a place we use to deliver NDA related documents and post discussion about NDA related topics. You can request access through this link www.ti.com/safetyanalysis. Note that the NDA that is included as part of the request process is required to gain access.

    You must fill all information from the link needed to get acces to SafeTI Private forum.

    Best regards,
    Miro

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