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- //! "Blinky" using delays instead of a timer
- #![deny(unsafe_code)]
- #![no_main]
- #![no_std]
- use panic_halt as _;
- use stm32f1xx_hal::{
- prelude::*,
- pac,
- delay::Delay,
- };
- use cortex_m_rt::entry;
- use embedded_hal::digital::v2::OutputPin;
- #[entry]
- fn main() -> ! {
- let dp = pac::Peripherals::take().unwrap();
- let cp = cortex_m::Peripherals::take().unwrap();
- let mut flash = dp.FLASH.constrain();
- let mut rcc = dp.RCC.constrain();
- let clocks = rcc.cfgr.freeze(&mut flash.acr);
- let mut gpioc = dp.GPIOC.split(&mut rcc.apb2);
- #[cfg(feature = "stm32f100")]
- let mut led = gpioc.pc9.into_push_pull_output(&mut gpioc.crh);
- #[cfg(feature = "stm32f101")]
- let mut led = gpioc.pc9.into_push_pull_output(&mut gpioc.crh);
- #[cfg(feature = "stm32f103")]
- let mut led = gpioc.pc13.into_push_pull_output(&mut gpioc.crh);
- let mut delay = Delay::new(cp.SYST, clocks);
- loop {
- led.set_high().unwrap();
- delay.delay_ms(1_000_u16);
- led.set_low().unwrap();
- delay.delay_ms(1_000_u16);
- }
- }
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