F28069-controlSTICK Flash Erase Fails

Hi!

Try to go through these threads

http://e2e.ti.com/support/microcontrollers/c2000/f/171/t/240863.aspx

http://e2e.ti.com/support/microcontrollers/c2000/f/171/p/244748/858217.aspx#858217

http://e2e.ti.com/support/microcontrollers/c2000/f/171/p/21814/822232.aspx#822232

Regards,

igor

Hi,

I would recommend you to install CCS Uniflash and unlock the device first and then try erasing.

For more info check: http://processors.wiki.ti.com/index.php/Category:CCS_UniFlash

Regards,

Gautam

I have tried a few times to download and install the tool UniFlash. Downloading was successful, but unzipping it pops up error.

See attached error message. TI folks, please help.

Did you try with both online as well as offline version?

Regards,

Gautam

I downloaded from my home computer and installed successfully.

However, UniFlash performs almost the same function as one built-in to CCS v5.

Unlocking succeeded, erasing failed.

I see... are you able to program the chip or you get "program failed" error?

Regards,

Gautam

Thanks for following up.

The programming also failed as erasing failed.

It all ended up with running the Flash API from the example project. I never think the flash is so vulnerable to test.

Hi Louis,

It all ended up with running the Flash API from the example project.

I guess your flash is permanently locked! One has to be very careful while using FLASH APIs. That's exactly why even after unlocking the device using Uniflash, you're unable to program or erase.

Regards,

Gautam

I did not set security password, they were left as all oxFF. If the password were changed to all 0x00, it must be due to the erase operation. However, I was running TI's example code and TI's own flash tool (UniFlash) could not recover it. That's helpless.

I hope a TI buddy of mine sheds some light here and helps you recovering your mcu.

Regards,

Gautam