/
leds.rs
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/
leds.rs
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#![no_std]
#![no_main]
extern crate panic_itm;
use cortex_m_rt::entry;
use stm32f3_discovery::stm32f3xx_hal::delay::Delay;
use stm32f3_discovery::stm32f3xx_hal::prelude::*;
use stm32f3_discovery::stm32f3xx_hal::pac;
use stm32f3_discovery::leds::Leds;
use stm32f3_discovery::switch_hal::OutputSwitch;
#[entry]
fn main() -> ! {
let device_periphs = pac::Peripherals::take().unwrap();
let mut reset_and_clock_control = device_periphs.RCC.constrain();
let core_periphs = cortex_m::Peripherals::take().unwrap();
let mut flash = device_periphs.FLASH.constrain();
let clocks = reset_and_clock_control.cfgr.freeze(&mut flash.acr);
let mut delay = Delay::new(core_periphs.SYST, clocks);
// initialize user leds
let mut gpioe = device_periphs.GPIOE.split(&mut reset_and_clock_control.ahb);
let mut leds = Leds::new(
gpioe.pe8,
gpioe.pe9,
gpioe.pe10,
gpioe.pe11,
gpioe.pe12,
gpioe.pe13,
gpioe.pe14,
gpioe.pe15,
&mut gpioe.moder,
&mut gpioe.otyper,
);
loop {
let ms_delay = 50u16;
for led in &mut leds {
led.on().ok();
delay.delay_ms(ms_delay);
led.off().ok();
delay.delay_ms(ms_delay);
}
}
}