Rust

Notes on Rust programming language

Overview

This local page about the programming language of Rust aims to answer among other questions: How suitable is Rust for embedded development?

• Rust

Rust By Example (RBE) home page here:

• https://doc.rust-lang.org/rust-by-example/

MIT mirror of Rust introduction by chapters:

^ Installation and Other Specific Notes

Install Rust on Ubuntu:

• https://phoenixnap.com/kb/install-rust-ubuntu

Adoption and popularity of Rust:

• https://www.embedded.com/embedded-rust-where-are-we-today/

2025-12-16

Rust crates

• https://users.rust-lang.org/t/what-are-the-benefits-of-using-crate-as-translation-unit-instead-of-a-source-file/11423/4

^ Rust for Embedded Systems

Rust language for embedded systems:

• https://docs.rust-embedded.org/book/
• https://docs.rust-embedded.org/embedonomicon/memory-layout.html

^ Questions to Answer

(1) For what is Rust language 'derive' keyword used?

  #[derive(Clone)]

  #[derive(Default)]

(2) How is the `.await` method working, and is this kind of element called a method in Rust?

(3) Rust `match` construct, is this equal to C switch statement?

(4) what does at or near top of source file `use defmt::*;` mean?

(5) Rust `impl` a keyword? Seeing this in lines like `impl CanTxChannel`.

(6) `.await.unwrap()` versus `.await`?

(7) What is the following forward arrow operator in this context?:

  pub async fn <function_name>(var declarations) -> () { ... }

(8) What mean the following top of file lines?:

#![no_std]
#![no_main]

^ References Rust and Embassy

• https://docs.embassy.dev/embassy-sync/git/default/blocking_mutex/raw/struct.CriticalSectionRawMutex.html

• https://doc.rust-lang.org/reference/keywords.html

• https://doc.rust-lang.org/reference/inline-assembly.html