embassy/embassy-stm32f4-examples/src/bin/hello.rs
2021-03-17 02:48:16 +01:00

42 lines
963 B
Rust

#![no_std]
#![no_main]
#![feature(trait_alias)]
#![feature(min_type_alias_impl_trait)]
#![feature(impl_trait_in_bindings)]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::*;
use cortex_m_rt::entry;
use stm32f4xx_hal::prelude::*;
#[entry]
fn main() -> ! {
info!("Hello World!");
let p = stm32f4xx_hal::stm32::Peripherals::take().unwrap();
p.DBGMCU.cr.modify(|_, w| {
w.dbg_sleep().set_bit();
w.dbg_standby().set_bit();
w.dbg_stop().set_bit()
});
p.RCC.ahb1enr.modify(|_, w| w.dma1en().enabled());
let gpioa = p.GPIOA.split();
let gpioc = p.GPIOC.split();
let mut led = gpioc.pc13.into_push_pull_output();
let button = gpioa.pa0.into_pull_up_input();
led.set_low().unwrap();
loop {
if button.is_high().unwrap() {
led.set_low().unwrap();
} else {
led.set_high().unwrap();
}
}
}