Module f3::examples::_02_leds

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);
}