• Locked Locked
  • Replies 2 replies
  • Subscribers 53 subscribers
  • Views 367 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

[F28027] UnitFlash shutdown and Flash memory fault locking

Brian Chang90901
Intellectual 2540 points

Other Parts Discussed in Thread: UNIFLASH

Hi Champs,

 

Recently  my customer have 0.6% failure rate for programing F28027.

The condiiton most likely is that  unitflash tool is  shuting down  and they turn off the gui direct. Then the flash memory is locking.

 I met the same condition with CCS4. When we download code by CCS and the CCS shutdown ,  i directly force the CCS turning off.

Then ,the device may  lock.

May i ask what is the right procedure to deal with this kind of condition??

When the CCS or unit flash is shuting down during downloading the out file ,  how we can do to avoid the flash memory programming/ erasing  failure??

Is it possible to insert JTAG command to turn off the  erasing / programming procedure??

 

BR

Brian Chang

  • TI__Guru 55700 points
    Brian,

    As you might be aware, we mention in about flash api documents that if flash erase / program operations aren't allowed to complete, it does have the potential to lock the device (or) leave flash bit cells in depleted state.

    What do you mean why Uniflash shutdown? Can you please elaborate? Having some snapshots should help the flash tool development team debug the issue. Also, please give us more details about CCS shutdown problem.

    Regards,
    Manoj
  • in reply to Manoj Santha Mohan
    TI__Intellectual 2540 points
    Hi Manoj,
    Sorry for that The "shutting down " is not a right word. The condition is the uniflash or CCS become no response any more.
    The program became uncontrollable until we use Task Manager to force the program closing.
    It is always happen when you keep using it around several hours.
    Unfortunately, i didn't take a snapshots in hands. I would do that once i meet it again.
    BRBrian Chang