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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.