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Debug Configuration Flash Setting Code Security Passwords sufficient to unlock password protected processor?

Scott Kruegel
Prodigy 200 points


Are the Debug Configuration Flash Setting Code Security Passwords sufficient to unlock a password protected processor?  I ask because I see that there is a Unlock_CSM() method in the .gel file for my 28335 processor.  I'm using CCS 6.1.1 and the Blackhawk USB200 JTAG Emulator.

  • 0
    TI__Guru** 115881 points
    Hi, not sure I understood the question but yes, Unlock_CSM() method in gel file should be sufficient to unlock the device as long as this has correct passwords.

    Regards,

    Vivek Singh
  • 0 in reply to Vivek Singh
    Prodigy 200 points
    My question wasn't clearly worded. What is the purpose of the Debug Configuration Flash Setting Code Security Passwords? If I set the Debug Configuration Flash Setting Code Security Passwords to my passwords, will I be able to connect to my protected processor without changing the .gel file? It seems like the passwords are in two places, and I don't understand why.
    Best,
    Scott
  • 0 in reply to Scott Kruegel
    TI__Guru** 115881 points

    Hi Scott,

    What is the purpose of the Debug Configuration Flash Setting Code Security Passwords?

    Where is this setting? If it's part of CCS flash plug-in then it's used for unlocking the device during flash operations only.

      If I set the Debug Configuration Flash Setting Code Security Passwords to my passwords, will I be able to connect to my protected processor without changing the .gel file?

    Unlocking the device using either of these method only happens once you are connected to device via CCS (JTAG). So this does not help in connecting to secure device. You need to use "Branch to Check boot mode" or "Wait-In-Reset" option. Following is what we have in TRM of this device (section 4.1 Functional Description)

    .

    Regards,

    Vivek Singh