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#![no_main]
#![no_std]
extern crate cortex_m;
extern crate cortex_m_rt;
extern crate panic_halt;
extern crate stm32f0xx_hal as hal;
use hal::delay::Delay;
use hal::prelude::*;
use hal::stm32;
use cortex_m::peripheral::Peripherals;
use cortex_m_rt::entry;
#[entry]
fn main() -> ! {
if let (Some(p), Some(cp)) = (stm32::Peripherals::take(), Peripherals::take()) {
let gpioa = p.GPIOA.split();
/* (Re-)configure PA1 as output */
let mut led = gpioa.pa1.into_push_pull_output();
/* Constrain clocking registers */
let mut rcc = p.RCC.constrain();
/* Configure clock to 8 MHz (i.e. the default) and freeze it */
let clocks = rcc.cfgr.sysclk(8.mhz()).freeze();
/* Get delay provider */
let mut delay = Delay::new(cp.SYST, clocks);
loop {
led.set_high();
delay.delay_ms(1_000_u16);
led.set_low();
delay.delay_ms(1_000_u16);
}
}
loop {
continue;
}
}