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Ensure the compiler doesn't reorder things before calling the sampler

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This commit is contained in:
huntc 2021-10-18 11:28:43 +11:00
parent 785030df96
commit c7e426655d
1 changed files with 2 additions and 0 deletions

2
embassy-nrf/src/saadc.rs
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@ -316,6 +316,8 @@ impl<'d, const N: usize> Saadc<'d, N> {
WAKER.register(cx.waker()); WAKER.register(cx.waker());
if r.events_end.read().bits() != 0 { if r.events_end.read().bits() != 0 {
compiler_fence(Ordering::SeqCst);
r.events_end.reset(); r.events_end.reset();
r.intenset.write(|w| w.end().set()); r.intenset.write(|w| w.end().set());