Module f3::examples::_04_roulette
[−]
[src]
A LED roulette!
#![deny(unsafe_code)] #![deny(warnings)] #![no_std] extern crate cortex_m; extern crate f3; use f3::hal::delay::Delay; use f3::hal::prelude::*; use f3::hal::stm32f30x; use f3::led::Leds; 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 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 leds = Leds::new(gpioe); let mut delay = Delay::new(cp.SYST, clocks); let n = leds.len(); loop { for curr in 0..n { let next = (curr + 1) % n; leds[curr].off(); leds[next].on(); delay.delay_ms(100_u8); } } }