blob: d06a0e96319d71a2bb8ce5efac52a1c8bc4bf689 [file] [log] [blame]
#![no_std]
use core::cell::Cell;
use core::fmt::Write;
use libtock::buttons::ButtonState;
use libtock::result::TockResult;
use libtock::timer::Duration;
#[libtock::main]
async fn main() -> TockResult<()> {
let mut drivers = libtock::retrieve_drivers()?;
let buttons_driver = drivers.buttons.init_driver()?;
let mut timer_driver = drivers.timer.create_timer_driver();
let timer_driver = timer_driver.activate()?;
let mut console = drivers.console.create_console();
let pressed_count = Cell::new(0usize);
let released_count = Cell::new(0usize);
let mut callback = |_button_num, state| match state {
ButtonState::Pressed => pressed_count.set(pressed_count.get() + 1),
ButtonState::Released => released_count.set(released_count.get() + 1),
};
let _subscription = buttons_driver.subscribe(&mut callback)?;
for button in buttons_driver.buttons() {
button.enable_interrupt()?;
}
loop {
writeln!(
console,
"pressed: {}, released: {}",
pressed_count.get(),
released_count.get()
)?;
timer_driver.sleep(Duration::from_ms(500)).await?;
}
}