`stm32f4xx-hal`
Free[](https://crates.io/crates/stm32f4xx-hal)
FreeFree tier
About `stm32f4xx-hal`
stm32f4xx-hal is a Rust hardware abstraction layer (HAL) for STM32F4 microcontrollers. It implements the embedded-hal traits, providing a safe and modern interface to peripherals such as GPIO, USART, SPI, I2C, timers, ADC, and more. The crate uses build.rs to automatically generate register definitions from SVD files, enabling portable embedded development with Rust's memory safety guarantees. It is part of the rust-embedded ecosystem and is published on crates.io as a free, open-source library.
Key Features
Implements embedded-hal traits for portability
Support for GPIO, USART, SPI, I2C, timers, ADC, and more
Automatic register generation from SVD files via build.rs
Memory-safe Rust interface for embedded development
Works with stm32f4xx-rs ecosystem and other rust-embedded tools
Pros & Cons
Pros
- Provides memory safety and modern language features for embedded development
- Portable across embedded-hal compatible platforms
- Active community and integration with rust-embedded ecosystem
- Free and open-source with permissive license
- Well-structured and documented crate
Cons
- Limited to STM32F4 series microcontrollers only
- Smaller ecosystem compared to traditional C/C++ toolchains
- Some peripherals may have incomplete or experimental implementations
- Requires familiarity with Rust and embedded development concepts
Best For
Embedded systems development with Rust on STM32F4 microcontrollersBuilding safe and reliable firmware for STM32F4-based devicesEducation and prototyping using Rust for ARM Cortex-M4F MCUsPortable embedded code that can be reused across different STM32 families
FAQ
What microcontrollers does stm32f4xx-hal support?
It supports STM32F4 series microcontrollers, including variants like STM32F401, STM32F405, STM32F407, STM32F411, and many more. The exact list of supported devices can be found in the crate documentation.
Is stm32f4xx-hal compatible with the standard embedded-hal traits?
Yes, stm32f4xx-hal explicitly implements the embedded-hal traits, allowing you to write portable drivers that can be reused across different hardware platforms.
How do I get started with stm32f4xx-hal?
Add the crate to your Cargo.toml, specify your target microcontroller via features (e.g., 'stm32f401'), and use the provided peripherals. The crate's README and examples provide step-by-step guidance.
Is stm32f4xx-hal free to use?
Yes, it is free and open-source, released under the MIT License or Apache 2.0 License, and available on crates.io.