cFE
The Core Flight System (cFS) Core Flight Executive (cFE) (by nasa)
FreeACT
FreeACT is a minimal Active Object (Actor) framework for FreeRTOS (by QuantumLeaps)
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
cFE
Posts with mentions or reviews of cFE.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-09-01.
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FreeRTOS Communication between tasks - Physical design
https://github.com/nasa/cFE Here is somewhat an example of what I mean. Although, I believe their architecture actually pokes each thread and uses pipes rather than masking as I was talking about.My stuff doesn’t live anywhere to link sadly.
FreeACT
Posts with mentions or reviews of FreeACT.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-09-19.
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Data Ownership between freeRTOS threads
Perhaps you could take a look at "FreeACT" project on GitHub, which shows the first steps in building an "Active Object" framework on top of FreeRTOS. The "FreeACT" framework currently does not have event management yet, but you could add it. This is an open-source project permissively licensed under the MIT license and everyone is welcome to contribute.
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Beginner's guide for professional firmware development?
Finally, for anyone interested in specific code, there is a FreeACT project on GitHub, where you can find a rudimentary Active Object Framework built on top of FreeRTOS.
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FreeRTOS Communication between tasks - Physical design
You will also need to be careful with blocking, because this clogs the event-loop that each of your tasks will be running. Among others, that means that you cannot use vTaskDelay(), for example. Instead, you would need to replace all such blocking mechanisms with event-driven equivalents. For example, you need to implement time-events instead of the blocking delay(). Here, you might want to take a look at the "FreeACT" minimal real-time framework based on FreeRTOS.
- Adding dependencies of FreeRTOS in drivers
What are some alternatives?
When comparing cFE and FreeACT you can also consider the following projects:
qpc - QP/C Real-Time Embedded Framework/RTOS for embedded systems based on active objects (actors) and hierarchical state machines
mpu925x-driver - Platform independent driver for MPU-9250 and MPU-9255 sensors.