[Farmadupe]

> 1. A huge chain of dependencies.

I think there is another side to this coin though. IMO there are too many embedded shops that overlook reliable 3rd-party code in favour of spending man-hours growing their own code from seed instead. Or if not that you spend days debugging some greybeard coworker's "Oh I think I wrote something like that 25 years ago for a PDP-11, I'll just email it to you.."

But to be honest I don't really disagree all that much -- As much as the embedded world needs to keep up with the times, there's no way that the level of audit required for a reliable embedded project just can keep up with how quickly crates are being changed.

> 2. A big departure from how things used to be done in this world.

Sometimes I cringe too when takes a massive server board with 9999GB of RAM and a 4g modem and calls it "embedded" just because they screwed it to the side of a helicopter... But if the root question is "will rust be viable on a puny AVR" I hope that the answer is definitely yes.

[couchand]

> will rust be viable on a puny AVR

There's still plenty of lingering issues (to name just the most glaring, you can't use a compiler since nightly-2021-01-07), but you certainly can use Rust for AVR. I've been writing all my ATtiny projects in Rust for the past year. I've been very satisfied with the ability to write high-level code (zero-sized types are a wonder!) that compiles to assembly more minimal than I'd write by hand.

[stavros]

Do you have any tutorials for this? I'm an embedded newbie and all the things I've seen required more knowledge than I have to either get to hello world or move an iota past it.

[charcircuit]

>Sometimes I cringe too when takes a massive server board with 9999GB of RAM and a 4g modem and calls it "embedded" just because they screwed it to the side of a helicopter...

Why should the processing power matter for whether something is embedded or not? To me that just seems like cost optimization for an embedded project.

[Farmadupe]

Yes I agree such a system is definitely embedded.. I think I was deliberately constructing a straw man in a (bad) effort to poke fun at people such as myself who have 'opinions' on what embedded 'really is'... "640k is enough for anyone" "C compilers are for people who cant write good assembly" etc etc.. https://xkcd.com/378/

I think it's possible to accidentally use that straw man to justify fears when looking at embedded rust.. But as other people have pointed out in this thread, just because rusty interrupt handlers look weird doesn't work any better or worse than one written in C.