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//! Turns all the user LEDs on
//!
//! ```
//! #![deny(unsafe_code)]
//! #![deny(warnings)]
//! #![no_std]
//! #![no_main]
//!
//! extern crate f3;
//! #[macro_use(entry, exception)]
//! extern crate cortex_m_rt as rt;
//! extern crate panic_semihosting;
//!
//! use f3::hal::prelude::*;
//! use f3::hal::stm32f30x;
//! use f3::led::Leds;
//! use rt::ExceptionFrame;
//!
//! entry!(main);
//!
//! fn main() -> ! {
//! let p = stm32f30x::Peripherals::take().unwrap();
//!
//! let mut rcc = p.RCC.constrain();
//! let gpioe = p.GPIOE.split(&mut rcc.ahb);
//!
//! let mut leds = Leds::new(gpioe);
//!
//! for led in leds.iter_mut() {
//! led.on();
//! }
//!
//! loop {}
//! }
//!
//! 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.