main.rs

use cortex_m_rt::entry;
use embassy_stm32::{
    gpio::{Input, Level, Output, Pull, Speed},
    interrupt,
};

#[entry]
fn main() -> ! {
    let p = embassy_stm32::init(Default::default());
    let mut led = Output::new(p.PB14, Level::Low, Speed::VeryHigh);
    let button = Input::new(p.PC13, Pull::Up);

    loop { }
}

#[interrupt]
fn EXTI13() {
    defmt::println!("HELLO!");
}