A Custom Implementation of the ByteStream Driver Model to support a Network of Deployments

[Emil808]

I have been working on an implementation for the ByteStream Driver Model to support a Network of Deployments. I built some classes inheriting the TCP Server and TCP Client classes that were present, and based heavily on the operations of the Drv/Ip files.

https://github.com/Emil808/fprime/blob/multi_tcp/DepA/MultiNode.md

The goal was to allow communication between identical Deployments/Space Vehicles, working together as a swarm. For the example I present here, each Deployment has their own GPS position (in ECEF), and is sending it out to the other nodes. When receiving another Node's GPS position, the receiving Node will calculate the distance between itself and the other Node.

Suggestions, and criticism would be appreciated to help me get better at this. Thank you!

[ThibFrgsGmz]

I haven't run it yet but it looks amazing!

As far as managing the configuration of your project, you could use fprime as a sub-module as shown in separated-project-example.

This would make it easier to see which components you had to create specifically for your mission. And you could more easily manage your dependency on fprime by simply updating the hash of the submodule.

[ThibFrgsGmz]

You can take a look on how it is made in https://github.com/fprime-community/fprime-arduino
You play with the cmake to include your additional components.

[capsulecorplab]

@ThibFrgsGmz do you have a working fork of fprime-arduino, out of curiosity? I'm constantly running into CMake errors while trying to generate the build cache

[ThibFrgsGmz]

I don't use this repo directly for my project management. For this way of managing FPrime I am mostly inspired by fprime-sphinx or fprime-azure-threadx.

What problems do you encounter on CMake ?

[capsulecorplab]

fprime-community/fprime-arduino#7 for the fprime v1.5.0 submodule. Otherwise, I'm encountering issues with prescan on v3.0.0 or devel branch

[SterlingPeet]

I have tracked down the bug in fprime-arduino that is preventing it from working with more modern F Prime, but I haven't had time to package the issue and and solution for presentation to the F Prime developers. It is an issue with the type-handling system, so Its not a super quick patch (at least, not an obvious one at my first glance).

[Emil808]

Update!

New Repository: https://github.com/Emil808/fprime-Mesh_Network

I separated the deployment and new driver files, with fprime as a sub-module. Should work with ver. 3.0.0

[ThibFrgsGmz]

It's better this way!

Concerning the telemetry data of your GPS component, you didn't group everything in one data structure because the GDS doesn't manage the display of complex data structures?

[Joshua-Anderson]

Super impressive! Very cool demonstration of mesh networking.

[Emil808]

@ThibFrgsGmz
Regarding the telemetry, I went through the fpp guide and found that telemetry does support arrays.