embassy/examples/src/bin/rtc_async.rs

64 lines
1.4 KiB
Rust
Raw Normal View History

2020-09-24 22:46:00 +02:00
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::*;
use core::mem::MaybeUninit;
use cortex_m_rt::entry;
2020-10-31 22:37:24 +01:00
use nrf52840_hal::clocks;
use embassy::executor::{task, TimerExecutor};
2020-09-25 23:38:42 +02:00
use embassy::time::{Clock, Duration, Timer};
2020-10-31 22:37:24 +01:00
use embassy::util::Forever;
use embassy_nrf::pac;
2020-09-24 22:46:00 +02:00
use embassy_nrf::rtc;
#[task]
async fn run1() {
2020-09-24 22:46:00 +02:00
loop {
info!("BIG INFREQUENT TICK");
Timer::after(Duration::from_ticks(64000)).await;
2020-09-24 22:46:00 +02:00
}
}
#[task]
async fn run2() {
2020-09-24 22:46:00 +02:00
loop {
info!("tick");
Timer::after(Duration::from_ticks(13000)).await;
2020-09-24 22:46:00 +02:00
}
}
2020-10-31 22:37:24 +01:00
static RTC: Forever<rtc::RTC<pac::RTC1>> = Forever::new();
static EXECUTOR: Forever<TimerExecutor<rtc::Alarm<pac::RTC1>>> = Forever::new();
2020-09-24 22:46:00 +02:00
#[entry]
fn main() -> ! {
info!("Hello World!");
let p = unwrap!(embassy_nrf::pac::Peripherals::take());
2020-09-24 22:46:00 +02:00
clocks::Clocks::new(p.CLOCK)
.enable_ext_hfosc()
.set_lfclk_src_external(clocks::LfOscConfiguration::NoExternalNoBypass)
.start_lfclk();
2020-10-31 22:37:24 +01:00
let rtc = RTC.put(rtc::RTC::new(p.RTC1));
rtc.start();
2020-10-31 22:37:24 +01:00
2020-09-25 23:38:42 +02:00
unsafe { embassy::time::set_clock(rtc) };
2020-09-24 22:46:00 +02:00
2020-10-31 22:37:24 +01:00
let executor = EXECUTOR.put(TimerExecutor::new(rtc.alarm0(), cortex_m::asm::sev));
2020-09-24 22:46:00 +02:00
unwrap!(executor.spawn(run1()));
unwrap!(executor.spawn(run2()));
2020-09-24 22:46:00 +02:00
2020-10-31 22:37:24 +01:00
loop {
executor.run();
cortex_m::asm::wfe();
2020-09-24 22:46:00 +02:00
}
}