max/embassy
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Split embassy crate into embassy-executor, embassy-util.

Browse Source
This commit is contained in:
Dario Nieuwenhuis
2022-07-29 21:58:35 +02:00
parent 8745d646f0
commit a0f1b0ee01
319 changed files with 1159 additions and 998 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
embassy-nrf/src/buffered_uarte.rs
View File

@ -18,10 +18,10 @@ use core::future::Future;
use core::sync::atomic::{compiler_fence, Ordering};
use core::task::Poll;
use embassy::waitqueue::WakerRegistration;
use embassy_cortex_m::peripheral::{PeripheralMutex, PeripheralState, StateStorage};
use embassy_hal_common::ring_buffer::RingBuffer;
use embassy_hal_common::{into_ref, low_power_wait_until, PeripheralRef};
use embassy_hal_common::{into_ref, PeripheralRef};
use embassy_util::waitqueue::WakerRegistration;
use futures::future::poll_fn;
// Re-export SVD variants to allow user to directly set values
pub use pac::uarte0::{baudrate::BAUDRATE_A as Baudrate, config::PARITY_A as Parity};
@ -450,3 +450,13 @@ impl<'a, U: UarteInstance, T: TimerInstance> PeripheralState for StateInner<'a,
trace!("irq: end");
}
}
/// Low power blocking wait loop using WFE/SEV.
fn low_power_wait_until(mut condition: impl FnMut() -> bool) {
while !condition() {
// WFE might "eat" an event that would have otherwise woken the executor.
cortex_m::asm::wfe();
}
// Retrigger an event to be transparent to the executor.
cortex_m::asm::sev();
}