embassy/embassy-hal-common/src/lib.rs
2021-07-29 14:10:17 +02:00

21 lines
528 B
Rust

#![no_std]
// This mod MUST go first, so that the others see its macros.
pub(crate) mod fmt;
pub mod interrupt;
mod macros;
pub mod peripheral;
pub mod ring_buffer;
pub mod usb;
/// Low power blocking wait loop using WFE/SEV.
pub 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();
}