Hi,
I am using the STM32H755ZIT6 dual-core microcontroller.
The internal Flash memory has a sector size of 128 KB and a page size of 4 KB.
In my application, I perform erase and write operations on a specific Flash sector. If a power failure occurs while the erase or write operation is in progress, I occasionally observe that:
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The Flash sector being accessed becomes corrupted
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The sector cannot be read by the application
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The same sector also becomes inaccessible in STM32CubeProgrammer
This issue does not occur every time and seems to happen randomly during power loss.
After full chip erasing it I can access the sector region.
I would like to understand:
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The possible reason for this Flash corruption during power failure
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Whether this behavior is expected for STM32H7 Flash memory
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Recommended software or hardware methods to avoid or recover from this situation
Any guidance would be appreciated.
Thank you.
