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//! Demonstrate the use of a blocking `Delay` using TIM5 general-purpose timer.
#![deny(unsafe_code)]
#![allow(clippy::empty_loop)]
#![no_main]
#![no_std]
// Halt on panic
use panic_halt as _; // panic handler
use cortex_m_rt::entry;
use stm32f4xx_hal as hal;
use crate::hal::{pac, prelude::*};
#[entry]
fn main() -> ! {
if let (Some(dp), Some(_cp)) = (
pac::Peripherals::take(),
cortex_m::peripheral::Peripherals::take(),
) {
// Set up the LED. On the Mini-F4 it's connected to pin PC13.
let gpioc = dp.GPIOC.split();
let mut led = gpioc.pc13.into_push_pull_output();
// Set up the system clock. We want to run at 48MHz for this one.
let rcc = dp.RCC.constrain();
let clocks = rcc.cfgr.sysclk(48.mhz()).freeze();
// Create a delay abstraction based on general-pupose 32-bit timer TIM5
let mut delay = hal::delay::Delay::tim5(dp.TIM5, &clocks);
loop {
// On for 1s, off for 1s.
led.set_high();
delay.delay_ms(1_000_u32);
led.set_low();
delay.delay_us(1_000_000_u32);
}
}
loop {}
}