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Re: [threadx-dev] ThreadX and Rust - a demo
  • From: Jonathan Pallant <jonathan.pallant@xxxxxxxxxxxxxxxxxxx>
  • Date: Tue, 12 Dec 2023 15:10:38 +0000
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  • Thread-topic: [threadx-dev] ThreadX and Rust - a demo
Well the example I wrote (linked in the blog) is a no-std binary. So instead of being able to call std::thread::spawn you have to declare in Rust the relevant ThreadX C function prototype for creating a thread and then unsafely call it. Which is what std::thread would do for you, except it only knows how to do it on Windows, macOS, Linux and a few other OSes.

Of course many people write no-std binaries without using an RTOS, instead just dropping into a simple event loop and using interrupts. Or even just polling the hardware if power consumption isn’t an issue.

Jonathan


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From: threadx-dev <threadx-dev-bounces@xxxxxxxxxxx> on behalf of Frédéric Desbiens via threadx-dev <threadx-dev@xxxxxxxxxxx>
Sent: Tuesday, December 12, 2023 2:52:33 PM
To: threadx-dev@xxxxxxxxxxx <threadx-dev@xxxxxxxxxxx>
Cc: Frédéric Desbiens <frederic.desbiens@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [threadx-dev] ThreadX and Rust - a demo
 
Hi Jonathan. 

Thank you for sharing! I am no Rust expert, but I have some knowledge about it. Can you elaborate a bit about the pros of your approach compared to one leveraging no_std? I am just curious.

Best Regards,

Frédéric DESBIENS

Program Manager and Evangelist — Embedded, IoT, and Edge Computing | Eclipse Foundation

Mastodon: @fdesbiens@xxxxxxxxxxxxxxxxxxxxx

Eclipse Foundation: The Community for Open Innovation and Collaboration



On Tue, 12 Dec 2023 at 09:36, Jonathan Pallant via threadx-dev <threadx-dev@xxxxxxxxxxx> wrote:

As the developer of the open-source ISO 26262 qualified Rust toolchain, Ferrocene (https://ferrous-systems.com/ferrocene), we were excited to see that ThreadX will become an open-source safety-certified RTOS under the Eclipse Foundation. More functional safety tools and products should be open source!

 

Inspired by the announcement, I tried to run some Rust code to run on ThreadX, and then wrote a blog about the experience (https://ferrous-systems.com/blog/rust-and-threadx/). I used an nRF52840-DK and it worked out great!

 

In the future, if you are able to supply pre-compiled certified C static libraries (and the corresponding source code), I personally think there’s real scope for using that as part of a functional-safety application written in Rust. Very happy to talk more when the time is right.

 

Best wishes during your transition process,

 

Jonathan

 

-- 

Jonathan Pallant
Senior Embedded Systems Engineer
t. 01480 460933

m. +49 151 2845 8745

Ferrous Systems UK Limited

201a Victoria St.
LONDON
SW1E 5NE


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