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TMDSHVRESLLCKIT: Erasing Flash Failed -- C28xx: Error occurred during flash operation: Timed out waiting for target to halt while executing FlashAPIInterface2802xV2_00.out

Part Number: TMDSHVRESLLCKIT

Hello,
My customer purchanced a TMDSHVRESLLCKIT. But the new TMDSCNCD28027 in the kit doesn't program.
They are asking RMR. Could you please advise?


[Customer's test result]

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A sample code for the TMDSHVRESLLCKIT was used for all the trials in this post.


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When the CCS [bug] button was pressed, [Erasing Flash Sectors] dialog came but no progress.

Finally the dialog switched to [Erasing Flash Failed] with the console out below:

C28xx: Error occurred during flash operation: Timed out waiting for target to halt while executing FlashAPIInterface2802xV2_00.out
C28xx: Error occurred during flash operation: Timed out waiting for target to halt while executing FlashAPIInterface2802xV2_00.out
C28xx: Flash operation timed out waiting for the algorithm to complete. Operation cancelled.
C28xx: File Loader: Memory write failed: Unknown error
C28xx: GEL: File: C:\Users\adminuser\workspace\*****\HVLLC\F2802x_FLASH\HVLLC.out: Load failed.


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They have tested the newly purchased kit in some combinations.
The result tells the TMDSCNCD28027 portion has something.


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It would be not so important, but the password was NoSecure:
- Launch TGT cfg: pass.
- Connect to the C28 core: pass.
- MemoeyBrowser 0x003F7FF8: password all-1's.

- (Load program: NG: Abort @ Erase again.)


Case study from E2E:

This thread points out a possibility of flash memory depletion.
e2e.ti.com/.../373440


Could you please advise my actions?
The first that I should do would be a depletion recovery operation.
And could you please tell me any other trials before I agree the RMR?