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Add usage in to docs

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This commit is contained in:
kalkyl 2022-12-13 09:45:11 +01:00
parent eb1d2e1295
commit aea28c8aa0
1 changed files with 23 additions and 9 deletions
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32
embassy-rp/src/multicore.rs
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@ -1,4 +1,4 @@
//! MultiCore support
//! Multicore support
//!
//! This module handles setup of the 2nd cpu core on the rp2040, which we refer to as core1.
//! It provides functionality for setting up the stack, and starting core1.
@ -7,6 +7,28 @@
//!
//! Enable the `critical-section-impl` feature in embassy-rp when sharing data across cores using
//! the `embassy-sync` primitives and `CriticalSectionRawMutex`.
//!
//! # Usage
//! ```no_run
//! static mut CORE1_STACK: Stack<4096> = Stack::new();
//! static EXECUTOR0: StaticCell<Executor> = StaticCell::new();
//! static EXECUTOR1: StaticCell<Executor> = StaticCell::new();
//!
//! #[cortex_m_rt::entry]
//! fn main() -> ! {
//! let p = embassy_rp::init(Default::default());
//!
//! let mut mc = MultiCore::new();
//! let _ = mc.cores.1.spawn(unsafe { &mut CORE1_STACK.mem }, 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())));
//! }
//! ```
//!
use core::mem::ManuallyDrop;
use core::sync::atomic::{compiler_fence, Ordering};
@ -28,14 +50,6 @@ pub enum Error {
Unresponsive,
}
/// Core ID
#[derive(Debug)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub enum CoreId {
Core0,
Core1,
}
#[inline(always)]
fn install_stack_guard(stack_bottom: *mut usize) {
let core = unsafe { cortex_m::Peripherals::steal() };