embassy/examples/stm32wl/src/bin/button_exti.rs
2024-08-05 15:13:11 +02:00

32 lines
773 B
Rust

#![no_std]
#![no_main]
use core::mem::MaybeUninit;
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::exti::ExtiInput;
use embassy_stm32::gpio::Pull;
use embassy_stm32::SharedData;
use {defmt_rtt as _, panic_probe as _};
#[link_section = ".shared_data"]
static SHARED_DATA: MaybeUninit<SharedData> = MaybeUninit::uninit();
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_stm32::init_primary(Default::default(), &SHARED_DATA);
info!("Hello World!");
let mut button = ExtiInput::new(p.PA0, p.EXTI0, Pull::Up);
info!("Press the USER button...");
loop {
button.wait_for_falling_edge().await;
info!("Pressed!");
button.wait_for_rising_edge().await;
info!("Released!");
}
}