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Dear Champs,
I am asking this for our customer.
The user is interested in F280049 and wonder if there is flash randomly and unexpected programmed during flash programming (erase stage, program stage) and unstable power supply/power drop?
For example, they have dual images, image A on flash bank A and image B on flash bank B.
If they update and program flash bank B with new codes and there is an unexpected power drop, then flash B programming should be interrupted, but will flash A is guaranteed without any unexpected and wrong programming (content damage)? Do we have any hardware protection to avoid there is no wrong programming on flash A?
Can brown-out reset be used to guarantee CPU will be reset (stopped) so that there is no wrong programming on any of the flash (especially the flash A/image A)?
That is, they can accept the flash programming is stopped during unstable power supply, but they cannot accept that the normal image is damaged/changed.
The user had bad experience on one of our competitors on this part because the competitor had wrong and random programming during unstable power supply, so they wonder if F280049 with dual-bank flash and brown-out reset or something else can avoid this?
Wayne
