• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 80 subscribers
  • Views 1168 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.

CCS/TMS320F28069: Can't recover from - C28xx: Error connecting to the target: (Error -1155 @ 0x0) Device may be operating in low-power mode.

Dean Hedin
Prodigy 110 points
Part Number: TMS320F28069

Tool/software: Code Composer Studio

I cannot connect to the target machine because of this error.  

Error connecting to the target:
(Error -1155 @ 0x0)
Device may be operating in low-power mode. The debugger has forced the device to wake up. Choose 'OK' to attempt to complete the debug connection.
(Emulation package 6.0.407.3)

If I click OK - I am re-prompted with the same error - it is as though it can't take it out of low power mode.

Scenario -  We were testing interruption of "in the field updates" (where host CPU updates Piccolo).  The code was interrupted during FLASH programming with a power loss. The update was about 10% through the FLASH'ing process when power was interrupted.  

I am normally able to recover from such failure by connecting the emulator and re-flashing the target.  I have done so many times.

My co-worker has the same CCS/Emulator setup and gets the same error when attempting to connect to this same target.  

We are using CCS 6.1.1.00022 with Blackhawk XDS560v2-USB Sytem Trace Emulator.

It seems now I have a bricked device that I can't recover.

  • 0
    TI__Guru* 84205 points

    Dean,

    Interruption of power during an erase or program operation could potentially corrupt the password locations and lock the device permanently.  Device can not be unlocked if the password locations are all zeros or if the password is not known (some thing unknown got programmed due to program interruption).  You may have to replace the device.

    I will ask our security expert to take a look at this post.

    Thanks and regards,
    Vamsi

  • 0 in reply to Vamsi Gudivada
    TI__Guru 55700 points

    Dean,

    If the power is lost in middle of flash erase / flash program of sector A (where CSM password is located), device may permanently get locked as CSM password locations (last 8 addresses of Sector A) can get corrupted or left in unknown state. In that case, the only option is to replace the part as we won't be able to unlock the device.

    Regards,

    Manoj