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embedded-rust

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Use when writing no_std Cortex-M or RISC-V firmware in Rust with cortex-m-rt, probe-rs, defmt, RTIC, or a panic handler. Not for no_std library constraints: use rust-no-std.

.devin/skills/embedded-rust/SKILL.md

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Sep 28, 2026
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Apache-2.0

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# Embedded Rust

## Contract

| Field | Bound contract |
|---|---|
| Trigger | A Rust firmware project needs to be set up or fixed: `#![no_std]` `#![no_main]` layout, `cortex-m-rt` startup, `probe-rs` flashing and log streaming, `defmt` logging, an RTIC application, or the choice of panic handler. |
| Authority | Reversible local: writes only the project files under the directory the user names (`Cargo.toml`, `.cargo/config.toml`, `memory.x`, `src/`); rollback is deleting that directory or reverting it in version control. No remote mutation. |
| Side effect | New or edited project files in the named directory. Flashing a board writes the board's flash, which the next `cargo run` overwrites. |
| Done | `cargo build --release` produces an ELF for the target triple, `cargo run --release` flashes it and streams `defmt` output to the terminal, and exactly one panic handler is linked. |

## Inputs

- MCU part and its probe-rs chip name (`probe-rs chip list` prints the names).