Hello TI family,
I am a little bit puzzled by the current issue we are facing:
We are using the Flash API to reprogram the internal flash. It may be the case that I halted the DSP during erase process.
Now, whenever I try to program the DSP it fails to erase. We are using Code Composer Studio 6.1.3.00033 with XDS100v2. The setup and project works with another control card.
Some things we have observed and tried:
- The DSP is certainly not locked with CSM password. When trying to program the internal flash, there are 2 or 3 attempts to erase before dropping and issuing an 'unknown error'.
- No internal flash sector can be erased (from A to H). This one is very strange that all sectors fail to erase. Should be one at a time. This was attempted with the On-chip Flash tool.
- Depletion recovery tools is unsuccessful. Have run it probably 30 times...
If it is permanently damaged/locked is fine, we can replace it but we do not understand how this happened so we do not have a way to prevent this from happening again…
Any idea on how the entire internal flash got locked?
Thanks for the support,
Matias