rust-embedded/cortex-m

Health v2 · maintenance only

Adoption not part of the score

1003 stars · 201 forks observed · 2026-09-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A collection of Rust crates providing low-level access to ARM Cortex-M microcontroller peripherals, including CPU register access, startup code, interrupt handling, and semihosting debugging support. It is maintained by the Rust Embedded Working Group's Arm team and designed for no_std embedded development.

Use cases

• access Cortex-M CPU registers and peripherals from Rust
• write no_std firmware for ARM Cortex-M microcontrollers
• set up startup code and interrupt handlers for embedded Rust
• debug embedded Rust programs via semihosting
• build a panic handler that outputs over ITM/SWO
• interface with peripheral access crates on Cortex-M chips

When to choose

• you are writing Rust firmware targeting ARM Cortex-M (M0-M33) microcontrollers
• you need safe, idiomatic low-level register and peripheral access in a no_std environment
• you want community-maintained startup and interrupt handling code instead of writing it yourself

When to avoid

• you target non-Cortex-M architectures like RISC-V, AVR, or Cortex-A
• you are writing hosted (std) Rust applications rather than embedded firmware
• you need a full hardware abstraction layer for a specific chip family - use a dedicated HAL crate instead

Facets

library · maturity stable

embedded developer-tools embedded-systems developer-tools embedded rust cortex-m arm no-std microcontroller rust-embedded peripheral-access interrupt-handling semihosting

Member repositories

For agents

markdown · JSON · MCP: product_card(name="rust-embedded/cortex-m")