embassy/examples/stm32l0/src/bin/button_exti.rs
Dario Nieuwenhuis 2eb0cc5df7 stm32/rcc: remove Rcc struct, RccExt trait.
All the RCC configuration is executed in init().
2022-01-05 00:00:44 +01:00

35 lines
883 B
Rust

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use embassy::executor::Spawner;
use embassy_stm32::exti::ExtiInput;
use embassy_stm32::gpio::{Input, Pull};
use embassy_stm32::Peripherals;
use embassy_traits::gpio::{WaitForFallingEdge, WaitForRisingEdge};
use example_common::*;
fn config() -> embassy_stm32::Config {
let mut config = embassy_stm32::Config::default();
config.rcc.enable_hsi48 = true;
config
}
#[embassy::main(config = "config()")]
async fn main(_spawner: Spawner, p: Peripherals) {
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!");
}
}