Add support for partial flash erase #385
Open
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Partial erase is a feature that allows to reduce time CPU is halted when using NVMC. It works by dividing page erase operation into multiple operations, in-between each operation CPU is resumed allowing interrupt handling.
arturkow2000
force-pushed
the
support_partial_page_erase
branch
from
e5370c6
to
cae8c11
Compare
krystian-hebel
approved these changes
Apr 5, 2022
krystian-hebel
suggested changes
Apr 5, 2022
|
This seems like a good idea! Can you rebase it on top of the latest master? Is there any difference between different chips that we need to handle before merging this? |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Partial erase is a feature that allows to reduce time CPU is halted when
using NVMC. It works by dividing page erase operation into multiple
operations, in-between each operation CPU is resumed allowing interrupt
handling.
Erasing a single page takes 85 ms on nRF52840, during write CPU can't handle interrupts,
this may result, e.g. in broken USB, especially if erase happens during enumeration.
This code has been tested on nRF52840 by zeroing page, erasing it and checking whether all bits are back to 1.