Hello,
I try to do a fail-safe boot loader on the 28027. The backup firmware should always work, even if the erase fails and a sector is in depletion.
Here I found something about balanced sectors.
e2e.ti.com/.../111828
If have choose my memory map as follow:
Sector A: Boot loader and backup FW (Update not allowed)
Sector B: User FW 1 (Update allowed)
Sector C: User FW 2 (Update allowed)
Sector D: unused (Update not allowed)
Is my understanding about depletion correct?
* If a sector B or C are in depletion, I can boot from flash sector A (entire program in sector A)
* If a sector B or C are in depletion, I can read read from sector A and D.
* If one sector is in depletion, erase and write does not work anymore.
* With Fash API I can detect depletion only, if the flash erase fails.
- Thomas
