embassy/tests/rp/src/bin/multicore.rs

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#[path = "../common.rs"]
mod common;

use defmt::{info, unwrap};
use embassy_executor::Executor;
use embassy_executor::_export::StaticCell;
use embassy_rp::multicore::{spawn_core1, Stack};
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
use embassy_sync::channel::Channel;
use {defmt_rtt as _, panic_probe as _};

static mut CORE1_STACK: Stack<1024> = Stack::new();
static EXECUTOR0: StaticCell<Executor> = StaticCell::new();
static EXECUTOR1: StaticCell<Executor> = StaticCell::new();
static CHANNEL0: Channel<CriticalSectionRawMutex, bool, 1> = Channel::new();
static CHANNEL1: Channel<CriticalSectionRawMutex, bool, 1> = Channel::new();

#[cortex_m_rt::entry]
fn main() -> ! {
    let p = embassy_rp::init(Default::default());
    spawn_core1(p.CORE1, unsafe { &mut CORE1_STACK }, move || {
        let executor1 = EXECUTOR1.init(Executor::new());
        executor1.run(|spawner| unwrap!(spawner.spawn(core1_task())));
    });
    let executor0 = EXECUTOR0.init(Executor::new());
    executor0.run(|spawner| unwrap!(spawner.spawn(core0_task())));
}

#[embassy_executor::task]
async fn core0_task() {
    info!("CORE0 is running");
    let ping = true;
    CHANNEL0.send(ping).await;
    let pong = CHANNEL1.recv().await;
    assert_eq!(ping, pong);

    info!("Test OK");
    cortex_m::asm::bkpt();
}

#[embassy_executor::task]
async fn core1_task() {
    info!("CORE1 is running");
    let ping = CHANNEL0.recv().await;
    CHANNEL1.send(ping).await;
}