#![no_main]
#![no_std]
use async_embedded::task;
use async_stm32f1xx::timer::AsyncTimer;
use cortex_m_rt::entry;
use panic_semihosting as _; use stm32f1xx_hal::{gpio::State, pac::Peripherals, prelude::*, timer::Timer};
#[entry]
fn main() -> ! {
let dp = Peripherals::take().expect("Peripherals have been taken before");
let rcc = dp.RCC.constrain();
let mut apb1 = rcc.apb1;
let mut acr = dp.FLASH.constrain().acr;
let clocks = rcc.cfgr.freeze(&mut acr);
let mut timer: AsyncTimer<_> = Timer::tim2(dp.TIM2, &clocks, &mut apb1).into();
let mut apb2 = rcc.apb2;
let gpioc = dp.GPIOC.split(&mut apb2);
let mut cr = gpioc.crh;
let mut led = gpioc
.pc13
.into_push_pull_output_with_state(&mut cr, State::High);
task::block_on(async {
loop {
led.toggle().unwrap();
timer.delay_for(10.hz()).await;
led.toggle().unwrap();
timer.delay_for(4.hz()).await;
led.toggle().unwrap();
timer.delay_for(10.hz()).await;
led.toggle().unwrap();
timer.delay_for(2.hz()).await;
}
})
}