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stm32f0xx-hal/examples/blinky_timer.rs

39 lines
865 B
Rust

#![no_main]
#![no_std]
use panic_halt as _;
use stm32f0xx_hal as hal;
use crate::hal::{prelude::*, stm32, time::Hertz, timers::*};
use cortex_m_rt::entry;
#[entry]
fn main() -> ! {
if let Some(mut p) = stm32::Peripherals::take() {
cortex_m::interrupt::free(move |cs| {
let mut rcc = p.RCC.configure().sysclk(8.mhz()).freeze(&mut p.FLASH);
let gpioa = p.GPIOA.split(&mut rcc);
// (Re-)configure PA1 as output
let mut led = gpioa.pa1.into_push_pull_output(cs);
// Set up a timer expiring after 1s
let mut timer = Timer::tim1(p.TIM1, Hertz(1), &mut rcc);
loop {
led.toggle().ok();
// Wait for the timer to expire
nb::block!(timer.wait()).ok();
}
});
}
loop {
continue;
}
}