RUST编写STM32F4嵌入式程序

分手后的思念是犯贱 2023-02-20 13:54 18阅读 0赞

### 文章目录 ###

*  Toml 文件
 *  跑马灯代码

# Toml 文件 #

[package]
    authors = ["Andy"]
    edition = "2018"
    readme = "README.md"
    name = "stm32app"
    version = "0.1.0"
    
    [dependencies]
    cortex-m = "*"
    cortex-m-rt = "*"
    cortex-m-semihosting = "*"
    panic-halt = "*"
    
    # Uncomment for the panic example.
    # panic-itm = "0.4.1"
    
    # Uncomment for the allocator example.
    # alloc-cortex-m = "0.3.5"
    
    # Uncomment for the device example.
    # Update `memory.x`, set target to `thumbv7em-none-eabihf` in `.cargo/config`,
    # and then use `cargo build --examples device` to build it.
     [dependencies.stm32f4]
     features = ["stm32f407", "rt"]
     version = "*"
    
    
    [profile.release]
    # optimize for size ('z' would optimize even more)
    opt-level = 's'
    # link with link time optimization (lto).
    lto = true
    # enable debugging in release mode.
    debug = true

# 跑马灯代码 #

#![no_std]
    #![no_main]
    
    extern crate stm32f4;
    extern crate panic_halt;
    extern crate cortex_m_rt;
    
    use cortex_m_rt::entry;
    use stm32f4::stm32f407;
    
    // use `main` as the entry point of this application
    #[entry]
    fn main() -> ! {
        // get handles to the hardware
        let peripherals = stm32f407::Peripherals::take().unwrap();
    
        let pf = &peripherals.GPIOF;
        let rcc = &peripherals.RCC;
    
        // enable system clock RCC for gpiof
        rcc.ahb1enr.write(|w|{
            w.gpiofen().set_bit()
        });
    
        // config GPIOF pin9 and pin10 for led
        {
            // 1. mode 01 通用输出
            pf.moder.write(|w|{
                w.moder9().output()
                    .moder10().output()
            });
            // 2. otype 0 推挽输出
            pf.otyper.write(|w|{
                w.ot9().push_pull()
                    .ot10().push_pull()
            });
            // 3. ospeed 10, 50MHz high speed
            pf.ospeedr.write(|w|{
                w.ospeedr9().high_speed()
                    .ospeedr10().high_speed()
            });
            // 4. pup 01， 上拉
            pf.pupdr.write(|w|{
                w.pupdr9().pull_up()
                    .pupdr10().pull_up()
            });
            // 5. idr/odr/bsrr
            // by condition to read or set
            pf.odr.reset();
        }
    
        loop{
            pf.odr.write(|w| {
                w.odr9().set_bit()
                    .odr10().clear_bit()
            });
            cortex_m::asm::delay(168*10000*3);
    
            pf.odr.write(|w| {
                w.odr9().clear_bit()
                    .odr10().set_bit()
            });
            cortex_m::asm::delay(168*10000*3);
        }
    }

折腾了一个星期才跑起来，意义重大，记录一下。  
具体教程见后续…