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