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//! Blinks an LED
//!
//! ```
//! #![deny(unsafe_code)]
//! #![deny(warnings)]
//! #![no_std]
//! #![no_main]
//!
//! extern crate cortex_m;
//! #[macro_use(entry, exception)]
//! extern crate cortex_m_rt as rt;
//! extern crate f3;
//! extern crate panic_semihosting;
//!
//! use f3::hal::delay::Delay;
//! use f3::hal::prelude::*;
//! use f3::hal::stm32f30x;
//! use f3::led::Led;
//! use rt::ExceptionFrame;
//!
//! entry!(main);
//!
//! fn main() -> ! {
//! let cp = cortex_m::Peripherals::take().unwrap();
//! let dp = stm32f30x::Peripherals::take().unwrap();
//!
//! let mut flash = dp.FLASH.constrain();
//! let mut rcc = dp.RCC.constrain();
//! let mut gpioe = dp.GPIOE.split(&mut rcc.ahb);
//!
//! // clock configuration using the default settings (all clocks run at 8 MHz)
//! let clocks = rcc.cfgr.freeze(&mut flash.acr);
//! // TRY this alternate clock configuration (all clocks run at 16 MHz)
//! // let clocks = rcc.cfgr.sysclk(16.mhz()).freeze(&mut flash.acr);
//!
//! let mut led: Led = gpioe
//! .pe9
//! .into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper)
//! .into();
//! let mut delay = Delay::new(cp.SYST, clocks);
//!
//! loop {
//! led.on();
//! delay.delay_ms(1_000_u16);
//! led.off();
//! delay.delay_ms(1_000_u16);
//! }
//! }
//!
//! exception!(HardFault, hard_fault);
//!
//! fn hard_fault(ef: &ExceptionFrame) -> ! {
//! panic!("{:#?}", ef);
//! }
//!
//! exception!(*, default_handler);
//!
//! fn default_handler(irqn: i16) {
//! panic!("Unhandled exception (IRQn = {})", irqn);
//! }
//! ```
// Auto-generated. Do not modify.