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https://github.com/rtic-rs/cortex-m-rtic
Real-Time Interrupt-driven Concurrency (RTIC) framework for ARM Cortex-M microcontrollers
https://github.com/rtic-rs/cortex-m-rtic
arm bare-metal concurrency cortex-m microcontroller no-std rust scheduler
Last synced: about 2 months ago
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Real-Time Interrupt-driven Concurrency (RTIC) framework for ARM Cortex-M microcontrollers
- Host: GitHub
- URL: https://github.com/rtic-rs/cortex-m-rtic
- Owner: rtic-rs
- License: apache-2.0
- Created: 2017-03-05T05:28:17.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2024-04-17T19:09:14.000Z (5 months ago)
- Last Synced: 2024-04-20T06:39:51.776Z (5 months ago)
- Topics: arm, bare-metal, concurrency, cortex-m, microcontroller, no-std, rust, scheduler
- Language: Rust
- Homepage: https://rtic.rs
- Size: 33.5 MB
- Stars: 1,610
- Watchers: 30
- Forks: 185
- Open Issues: 40
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE-APACHE
Awesome Lists containing this project
- rust-embedded - cortex-m rtic - M microcontrollers (Real-time / Real-time tools)
- awesome-embedded-rust - cortex-m rtic - M microcontrollers (Real-time / Real-time tools)
README
# Real-Time Interrupt-driven Concurrency
> The hardware accelerated Rust RTOS
A concurrency framework for building real-time systems.
[](https://crates.io/crates/rtic)
[](https://docs.rs/rtic)
[](https://rtic.rs/)
[](https://matrix.to/#/#rtic:matrix.org)
[](https://hackmd.io/@xmis9JvZT8Gvo9lOEKyZ4Q/SkBJKsjuH)
## Features
- **Tasks** as the unit of concurrency [^1]. Tasks can be *event triggered*
(fired in response to asynchronous stimuli) or spawned by the application on
demand.
- **Message passing** between tasks. Specifically, messages can be passed to
software tasks at spawn time.
- **A timer queue** [^2]. Software tasks can be delayed or scheduled to continue running
at some time in the future. This feature can be used to implement periodic tasks.
- Support for prioritization of tasks and, thus, **preemptive multitasking**.
- **Efficient and data race free memory sharing** through fine-grained *priority
based* critical sections [^1].
- **Deadlock free execution** guaranteed at compile time. This is a stronger
guarantee than what's provided by [the standard `Mutex`
abstraction][std-mutex].
[std-mutex]: https://doc.rust-lang.org/std/sync/struct.Mutex.html
- **Minimal scheduling overhead**. The task scheduler has minimal software
footprint; the hardware does the bulk of the scheduling.
- **Highly efficient memory usage**: All the tasks share a single call stack and
there's no hard dependency on a dynamic memory allocator.
- **All Cortex-M devices are fully supported**.
- This task model is amenable to known WCET (Worst Case Execution Time) analysis
and scheduling analysis techniques.
## [User documentation](https://rtic.rs)
Documentation for the [development version](https://rtic.rs/dev).
## [API reference](https://rtic.rs/stable/api/)
## [Community provided examples repo][examples]
[examples]: https://github.com/rtic-rs/rtic-examples
## Chat
Join us and talk about RTIC in the [Matrix room][matrix-room].
Weekly meeting minutes can be found over at [RTIC HackMD][hackmd]
[matrix-room]: https://matrix.to/#/#rtic:matrix.org
[hackmd]: https://rtic.rs/meeting
## Contributing
New features and big changes should go through the RFC process in the
[dedicated RFC repository][rfcs].
[rfcs]: https://github.com/rtic-rs/rfcs
## Running tests locally
To check all `Run-pass tests` locally on your `thumbv6m-none-eabi` or `thumbv7m-none-eabi` target device, run
```console
$ cargo xtask --target
# ˆˆˆˆˆˆˆˆˆˆˆˆ
# e.g. thumbv7m-none-eabi
```
## Acknowledgments
This crate is based on the [Real-Time For the Masses language][rtfm-lang]
created by the Embedded Systems group at [Luleå University of Technology][ltu],
led by [Prof. Per Lindgren][perl].
[rtfm-lang]: http://www.rtfm-lang.org/
[ltu]: https://www.ltu.se/?l=en
[perl]: https://www.ltu.se/staff/p/pln-1.11258?l=en
## References
[^1]: Eriksson, J., Häggström, F., Aittamaa, S., Kruglyak, A., & Lindgren, P.
(2013, June). Real-time for the masses, step 1: Programming API and static
priority SRP kernel primitives. In Industrial Embedded Systems (SIES), 2013
8th IEEE International Symposium on (pp. 110-113). IEEE.
[^2]: Lindgren, P., Fresk, E., Lindner, M., Lindner, A., Pereira, D., & Pinho,
L. M. (2016). Abstract timers and their implementation onto the arm cortex-m
family of mcus. ACM SIGBED Review, 13(1), 48-53.
## License
All source code (including code snippets) is licensed under either of
- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
[https://www.apache.org/licenses/LICENSE-2.0][L1])
- MIT license ([LICENSE-MIT](LICENSE-MIT) or
[https://opensource.org/licenses/MIT][L2])
[L1]: https://www.apache.org/licenses/LICENSE-2.0
[L2]: https://opensource.org/licenses/MIT
at your option.
The written prose contained within the book is licensed under the terms of the
Creative Commons CC-BY-SA v4.0 license ([LICENSE-CC-BY-SA](LICENSE-CC-BY-SA) or
[https://creativecommons.org/licenses/by-sa/4.0/legalcode][L3]).
[L3]: https://creativecommons.org/licenses/by-sa/4.0/legalcode
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
licensed as above, without any additional terms or conditions.