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add embassy::main and implement for stm32f4

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This commit is contained in:
xoviat
2021-03-27 17:27:39 -05:00
parent 19b959b0f8
commit 6ee9e012fc
9 changed files with 343 additions and 39 deletions
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1
embassy-stm32f4-examples/Cargo.toml
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@ -38,6 +38,7 @@ stm32f479 = ["stm32f4xx-hal/stm32f469", "embassy-stm32f4/stm32f469"]
embassy = { version = "0.1.0", path = "../embassy", features = ["defmt", "defmt-trace"] }
embassy-traits = { version = "0.1.0", path = "../embassy-traits", features = ["defmt"] }
embassy-stm32f4 = { version = "*", path = "../embassy-stm32f4" }
embassy-stm32 = { version = "*", path = "../embassy-stm32" }
defmt = "0.2.0"
defmt-rtt = "0.2.0"

49
embassy-stm32f4-examples/src/bin/rtc_async.rs
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@ -8,19 +8,19 @@
mod example_common;
use example_common::*;
use cortex_m_rt::entry;
use defmt::panic;
use embassy::executor::{task, Executor};
use embassy;
use embassy::executor::Spawner;
use embassy::task;
use embassy::time::{Duration, Timer};
use embassy::util::Forever;
use embassy_stm32f4::{interrupt, pac, rtc};
use stm32f4xx_hal::prelude::*;
use embassy_stm32f4;
use embassy_stm32f4::hal;
#[task]
async fn run1() {
loop {
info!("BIG INFREQUENT TICK");
Timer::after(Duration::from_ticks(32768 * 2)).await;
Timer::after(Duration::from_ticks(32768 * 2 as u64)).await;
}
}
@ -28,40 +28,13 @@ async fn run1() {
async fn run2() {
loop {
info!("tick");
Timer::after(Duration::from_ticks(13000)).await;
Timer::after(Duration::from_ticks(13000 as u64)).await;
}
}
static RTC: Forever<rtc::RTC<pac::TIM2>> = Forever::new();
static ALARM: Forever<rtc::Alarm<pac::TIM2>> = Forever::new();
static EXECUTOR: Forever<Executor> = Forever::new();
#[embassy::main(use_hse = 16)]
async fn main(spawner: Spawner) {
let (dp, clocks) = embassy_stm32::Peripherals::take().unwrap();
#[entry]
fn main() -> ! {
info!("Hello World!");
let p = unwrap!(pac::Peripherals::take());
p.RCC.ahb1enr.modify(|_, w| w.dma1en().enabled());
let rcc = p.RCC.constrain();
let clocks = rcc.cfgr.freeze();
p.DBGMCU.cr.modify(|_, w| {
w.dbg_sleep().set_bit();
w.dbg_standby().set_bit();
w.dbg_stop().set_bit()
});
let rtc = RTC.put(rtc::RTC::new(p.TIM2, interrupt::take!(TIM2), clocks));
rtc.start();
unsafe { embassy::time::set_clock(rtc) };
let alarm = ALARM.put(rtc.alarm1());
let executor = EXECUTOR.put(Executor::new());
executor.set_alarm(alarm);
executor.run(|spawner| {
unwrap!(spawner.spawn(run1()));
unwrap!(spawner.spawn(run2()));
});
spawner.spawn(run1()).unwrap();
}