Rust在嵌入式领域快速发展。本文介绍Rust嵌入式开发的基础知识。 ## 环境搭建 ```bash rustup target add thumbv7m-none-eabi cargo install probe-rs-tools cargo install flip-link ``` ## LED闪烁 ```rust #![no_std] #![no_main] use cortex_m_rt::entry; use embedded_hal::digital::OutputPin; use panic_halt as _; #[entry] fn main() -> ! { let dp = pac::Peripherals::take().unwrap(); let cp = cortex_m::Peripherals::take().unwrap(); let mut led = setup_led(&dp); let mut delay = cp.SYST.delay(&clocks); loop { led.set_high().unwrap(); delay.delay_ms(500u32); led.set_low().unwrap(); delay.delay_ms(500u32); } } ``` ## RTIC框架 ```rust use rtic::app; #[app(device = pac, peripherals = true)] mod app { #[shared] struct Shared {} #[local] struct Local {} #[init] fn init(cx: init::Context) -> (Shared, Local) { (Shared {}, Local {}) } #[task(binds = TIM2)] fn timer_interrupt(cx: timer_interrupt::Context) { // 定时器中断处理 } } ``` Rust在嵌入式领域的优势：零成本抽象、内存安全、强大的类型系统。