Add support for Memfault commands

[michal-narajowski]

https://memfault.com/

Adds support for pulling coredump data, events and traces from the device.

[ddavidebor]

Hello @michal-narajowski , are you interested in progressing this PR?

[michal-narajowski]

Hi @ddavidebor, I fixed mentioned in @ccollins476ad review. I can't test it anymore though.

[ddavidebor]

Do you have some instructions on how to use the feature?

On Wed, 30 Mar 2022 at 13:12, Michał Narajowski @.***> wrote:

Hi @ddavidebor https://github.com/ddavidebor, I fixed mentioned in @ccollins476ad https://github.com/ccollins476ad review. I can't test it anymore though.

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[michal-narajowski]

I've done some research and it looks like my PR with support for Memfault has been scrapped. The feature has now been added to memfault repo: https://github.com/memfault/memfault-firmware-sdk/tree/master/ports/mynewt. I'm not sure but maybe you could still use it with these commands.

You would also need https://github.com/apache/mynewt-mcumgr/pull/84 since it implements the commands on the device side. Usage is rather simple (newtmgr memfault pull). Please refer to newtmgr docs: https://mynewt.apache.org/latest/os/modules/devmgmt/newtmgr.html