#![cfg_attr(test, allow(unused_imports))]

#![cfg_attr(not(test), no_std)]
#![cfg_attr(not(test), no_main)]

// pick a panicking behavior
#[cfg(not(test))]
use panic_halt as _; // you can put a breakpoint on `rust_begin_unwind` to catch panics
// use panic_abort as _; // requires nightly
// use panic_itm as _; // logs messages over ITM; requires ITM support
// use panic_semihosting as _; // logs messages to the host stderr; requires a debugger

// use cortex_m::asm;
use cortex_m_rt::entry;
// use stm32l4::stm32l4x2;
use stm32l4xx_hal::{prelude::*, pac, rcc};
use cortex_m_semihosting::{debug, hprintln};

#[cfg(not(test))]
#[entry]
fn main() -> ! {

    // asm::nop(); // To not have main optimize to abort in release mode, remove when you add code
    hprintln!("Hello, world!").unwrap();

    let peripherals = pac::Peripherals::take().unwrap();
    let _core = cortex_m::Peripherals::take().unwrap();


    let gpioa = &peripherals.GPIOA;
    gpioa.odr.modify(|_, w| w.odr0().set_bit());

    loop {
        // your code goes here
    }
}

fn add(a: i32, b: i32) -> i32 {
    a + b
}

#[cfg(test)]
mod test {
  use super::*;

  #[test]
  fn foo() {
    println!("tests work!");
    assert!(2 == add(1,1));
  }
}