Use W25Q080 second stage loader for Nano RP2040 Connect #537
Conversation
This file contains hidden or 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
Due to the well known electronic market situation, we were forced to mount an alternative part number in a batch of Arduino Nano RP2040 Connect. These flash chips, from ISSI, need yet another way to configure the QE sticky bit :| At the moment, the safest way to handle the dual sourcing is to fallback using W25Q080 loader, and requiring that the sticky bit has already been programmed during production.
|
What is the part number you are substituting? We have seen Nano's with AT25SF128A and IS25LP128F. Thanks. |
|
AT25SF128A is the chip we'll be using for most of the production. for now we just had a small batch with IS25LP128F. |
kilograham
approved these changes
Aug 11, 2021
12 tasks
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Outdated suggestions cannot be applied.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.
Due to the well known electronic market situation, we were forced to mount an alternative part number in a batch of Arduino Nano RP2040 Connect.
These flash chips, from ISSI, need yet another way to configure the QE sticky bit 😞
At the moment, the safest way to handle the dual sourcing is to fallback using W25Q080 loader, and requiring that the sticky bit has already been programmed during production.
@pnndra @alranel @iabdalkader