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Problem with Flashing the program in Delfino Experimenter Kit - F28335

Karuna Mudliyar
Intellectual 510 points
Hi all,
 
So here is our issue.
We tried to Flash our program in F28335 on the Delfino Experimenter kit. We accidentally disconnected the debugger while the debug process was still on and then the flash got locked out. When we try to use the Flash on the board again, we get the following error-
C28xx: GEL Output:
ADC Calibration not complete, check if device is unlocked and recalibrate.C28xx: Flash operation timed out waiting for the algorithm to complete. Operation cancelled.
It is still possible for us to program and use the same board through RAM but we cannot use the Flash anymore. Also, the Flash program that was placed before lock-out is still running too. We are just not able to access and edit it anymore.
This is a new board that we started using only today so we definitely haven't overshot the 1000 read/write cycles or anything like that. Is there anyway to unlock the Flash to be able to use it again? Please help.

Thank you,
 
  • 0
    TI__Guru** 109105 points

    Hi,

    In CCS memory watch window, can you check the value in different flash sectors ? If you see all the values as 0x0 then device is LOCKED (which could be because security PASSWORD location got programed with value 0x0) and there is no way to recover the device in such case.

    You need to replace the device on the board.

    Regards,

    Vivek Singh

  • 0 in reply to Vivek Singh
    Prodigy 20 points
    Hi Vivek,

    Thank you for your response. But unfortunately, we are not able to watch the flash values in the Memory Browser.. Actually we are not able to connect to the target at all.. It is locked out even for that. And we checked the .out file that is loaded in the flash, we don't write anything to the Address locations that stores the password. This seems to be some issue between the debugging process in the CCS and the corresponding thread in the processor. Anything else we can try?

    Thank you.
  • 0 in reply to Samir Patel
    Prodigy 20 points
    Hi Vivek,

    Just an update.. we managed to load the program in RAM and then the Memory Browser functions.. with that, we checked the values in the Password locations.. It's still all FFFF.. yet we get the above error when we try to load the program in Flash.. Could there be any other issues?

    Thanks.
  • 0 in reply to Samir Patel
    TI__Guru** 109105 points

    Samir,

    Earlier you were not able to program the code into RAM as well. What change you made to get it working? If password location are all 0xF then you should not have any issue with Flash loading. Can you try erasing the Flash sectors using CCS Flash plug-in (GUI) and see if that works. Also if you have another board, please see if that works fine.

    Regards,

    Vivek Singh