• State Resolved
  • Locked Locked
  • Replies 5 replies
  • Answers 1 answer
  • Subscribers 82 subscribers
  • Views 231 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS320F2800137: DCSM

youjun zhang
Intellectual 570 points
Part Number: TMS320F2800137
Other Parts Discussed in Thread: UNIFLASH

Tool/software:

hi expert

when i used dcsm,the setting in ccs as follows

but i used uniflash to read the value of 0x78000,it is different,in ccs value = 3FFF,in uniflash = 0000,why?

dcsm.asm setting as follows:

  • 0
    TI__Mastermind 23460 points

    Hi Youjun,

    When the DCSM is secure, all the memory locations in user OTP will show up as all 0s except for the CSM passwords. You must unlock the DCSM to see the correct values in Uniflash.

    You may need to disable the "reset target before flash programming operations" option to do this successfully.

    Thank you,

    Luke

  • 0 in reply to Luke Jones
    Intellectual 570 points

    hi

    the DCSM is secure,when is used the Uniflash,writed default CSM passwords,it also can see the CSM passwords,why?

  • 0 in reply to youjun zhang
    TI__Mastermind 23460 points

    Hi Youjun,

    From looking at address 0x78020, it seems that custom passwords have been programmed. You must use these custom passwords to unlock the device to be able to view the OTP contents.

    Thank you,

    Luke

  • 0 in reply to Luke Jones
    Intellectual 570 points

    hi Luke,

    my question is when i used the wrong passwords,i also can see the correct passwords at the address of 0x78020 by uniflash,why?

  • +1 in reply to youjun zhang
    TI__Mastermind 23460 points

    Hi Youjun,

    When PSWDLOCK is disabled, the passwords at address 0x78020 will ALWAYS be visible, even if the DCSM is locked. You must enable PSWDLOCK to secure your passwords.

    Thank you,

    Luke