embassy VS rtic

The other comment implied it but I think it's worth pointing out that:

> embedded applications that can't have asynchronous execution

Is most definitely not the case.

They can't have the same type of async runtime that would be optimal for a web server or the likes (and I'm not sure all desktop applications and web servers are going to always benefit from the same runtime in the same way), but that's a point in favour of Rust's model imho

If you're interested this is an embedded async runtime that's expected to run in no-std and no-alloc environments

https://embassy.dev/

In this article, I will guide you through creating a Snake game in embedded Rust on the BBC Micro:bit using the asynchronous framework Embassy.

Rust solved this by autogenning code from mfgr published device xml descriptors. Eg https://embassy.dev/

Better than any C(++) embedded hal I've used

If I get your question right, you still need some host software (like a rust compiler)! It's not exactly micropython experience.

The bare minimum would be one of the examples [1] compiled with a Rust compiler and then transformed into a .uf2 file with elf2uf2 [2]. You can then just drag and drop the .uf2 file into the "mass storage device" presented by the bootloader. To get the bootloader to mount, you press a button on a Raspberry Pico (or short two outputs if you're using bare RP2040) while plugging it in.

You'll probably want a debug probe [3] driven by probe-rs [4] at some point, it's just much more convenient to flash and debug with it.

[1]: https://github.com/embassy-rs/embassy/tree/main/examples/rp/...

[2]: https://github.com/JoNil/elf2uf2-rs

[3]: https://www.raspberrypi.com/documentation/microcontrollers/d...

[4]: https://probe.rs/

thanks. looked that up. for the curious: https://embassy.dev/

Fuchsia has a crap load of wild ideas. Microkernel, capabilities, weird app installation system (I think they're trying to make apps more like websites).

https://rtic.rs/ is a pretty cool idea for an embedded RTOS (sort of).

Honestly though there's still stuff in Plan 9 that is way more advanced than what Linux does, e.g. https://9p.io/sys/doc/lexnames.html

There's also RTIC which is another framework that makes concurrency trivial.

Github here: https://github.com/rtic-rs/rtic

At Telecom Paris, one of the top engineering schools in France, we teach Rust to undergraduate and graduate students who specialize in Embedded Systems. They get to use Rust and RTIC on STM32 based boards, and they also use Embassy for some projects.

If you want something more cutting edge. Try embedded Rust and checkout RTIC. I don't know if it's the real next thing. But i guess it could be fun to try.

RTIC is still going strong, they are working on a 2.0 release at the moment :). There's also now embassy which provides an async runtime (and a ton of other nice things) for embedded as well :)

RTIC - RTOS and task scheduling

That's completely incorrect. The existing ecosystem focuses on web/IO because that's were Async/Await is already being used in other languages so everyone started there. There is significant interest in writing frameworks using async rust in embedded, but the required compiler features for it are still not stable. Check out embassy. Even RTIC has experiments with async.

But neither of them might be usable in you case. Since it looks like you're running bare-metal, a framework like RTIC can give you a initialization function and then pass "static" data to a struct that is shared between all tasks.