embassy/examples/stm32l0/src/bin/button_exti.rs
Dario Nieuwenhuis 2e85eaf7d5 examples Remove the fn config() idiom.
It was only useful for doing #[embassy_executor::main(config = "config()")]`. Now that
it's gone, it makes more sense to build the config in main directly.
2022-08-17 22:25:58 +02:00

30 lines
743 B
Rust

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::*;
use embassy_executor::executor::Spawner;
use embassy_stm32::exti::ExtiInput;
use embassy_stm32::gpio::{Input, Pull};
use embassy_stm32::Config;
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let mut config = Config::default();
config.rcc.enable_hsi48 = true;
let p = embassy_stm32::init(config);
let button = Input::new(p.PB2, Pull::Up);
let mut button = ExtiInput::new(button, p.EXTI2);
info!("Press the USER button...");
loop {
button.wait_for_falling_edge().await;
info!("Pressed!");
button.wait_for_rising_edge().await;
info!("Released!");
}
}