07:57 <oneDragon[m]> Recently there was an idea to implement a rust gpio library on bare metal. Is this feasible?

07:57 <oneDragon[m]> just for easily use GPIO to wrapper some operation in bcm2711 like function select, GPSETx, GPCLKx this.

07:57 <oneDragon[m]> * Recently there was an idea to implement a rust gpio library on bare metal. Is this feasible?

07:57 <oneDragon[m]> just for easily use GPIO to wrapper some operation in bcm2711 like function select, GPSETx, GPCLKx this.

07:57 <oneDragon[m]> The final product I want is somewhat similar to the one used in python.

07:58 <K900> What do you mean by "bare metal"?

07:58 <K900> Like, no OS, just your Rust code running directly on the hardware?

08:00 <oneDragon[m]> I didn't expect to see you here. you've dabbled in a lot.👀

08:00 <oneDragon[m]> there is a kind of OS under, but this OS wasn't provide a kind of drive of it.

08:00 <oneDragon[m]> but when i check the manual, it seems feasible to set GPIO message via change registers.

08:03 <oneDragon[m]> This operating system, as I call it, will merge the applications and drivers I wrote into it, eventually producing a binary file that runs directly on hardware.

10:56 <ilpalazzo-ojiis4> thejpster: https://hachyderm.io/@thejpster/112028541339341748 Sir sorry if I'm getting indiscreet, but how did you get your first real job 6 months from now?

11:04 <NiaLinaLunaStorm> <ilpalazzo-ojiis4> "thejpster: https://hachyderm.io/..."; <- um... 2004, not 2024?

11:11 <ilpalazzo-ojiis4> Or 2014, possibly.

11:11 <ilpalazzo-ojiis4> But 2004 sounds more likely.

11:12 <NiaLinaLunaStorm> no, the toot actually says 2004

11:12 <NiaLinaLunaStorm> > I started my first “proper” job in mid 2004

11:36 <explodingwaffle1> https://www.reddit.com/r/rust/comments/1b58o29/embedded_rust_stm32_hal_preference/ 🥲

11:41 <ilpalazzo-ojiis4> It appears fixed. Goody!

11:50 <thejpster[m]> Yes, it was clearly a typo.

12:08 <qzl[m]> error[E0412]: cannot find type `Result` in this scope... (full message at <https://catircservices.org/_matrix/media/v3/download/catircservices.org/YTcmYEttDKaKoySvjckmUqTI>)

12:10 <qzl[m]> My project relies on embedd-HAL, compiling errors in no_std, no_main environment. What is the reason

12:48 <JamesMunns[m]> Do you have your target installed? Like rustup target add thumbv7m-none-eabi or so?

12:48 <JamesMunns[m]> "can't find result" means you're probably missing std/core for your platform.

14:46 <haobogu[m]> Hello everyone, in rust embedded world, what's the most common serializer for converting structs to bytes?

14:54 <diondokter[m]> <haobogu[m]> "Hello everyone, in rust embedded..." <- Not sure there's a clear winner, but Postcard gets used a lot

14:54 <haobogu[m]> diondokter[m]: will try it, thanks :D

15:48 <korken89[m]> I guess postcard and ssmarshal

15:59 <adamgreig[m]> zerocopy perhaps too

19:45 <dav1d> I made a no-std no-alloc Map/Set crate for enums (or anything with a bijective mapping to an index), which could be interesting to you, would love some feedback: https://docs.rs/enumap/latest/enumap/index.html

19:58 <diondokter[m]> <dav1d> "I made a no-std no-alloc Map/Set..." <- Interesting idea. So instead of taking a "random" type as the key of the map, you use an enum. And then you use the enum discriminant as the index to immediately know the index in the internal array

20:00 <dav1d> diondokter[m], yep exactly! And there is a macro to implement that mapping automatically for enums, but you can do it technically for any kind of data structure that is Copy