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nrf/buffered_uarte: add set_baudrate

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Dario Nieuwenhuis 2021-01-11 10:40:37 +01:00
parent 2616467377
commit 41160c0d8d
1 changed files with 13 additions and 0 deletions
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13
embassy-nrf/src/buffered_uarte.rs
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@ -203,6 +203,19 @@ impl<'a, U: Instance, T: TimerInstance, P1: ConfigurablePpi, P2: ConfigurablePpi
} }
} }
pub fn set_baudrate(self: Pin<&mut Self>, baudrate: Baudrate) {
self.inner().with(|state, _irq| {
let timeout = 0x8000_0000 / (baudrate as u32 / 40);
state.timer.cc[0].write(|w| unsafe { w.bits(timeout) });
state.timer.tasks_clear.write(|w| unsafe { w.bits(1) });
state
.uarte
.baudrate
.write(|w| w.baudrate().variant(baudrate));
});
}
fn inner(self: Pin<&mut Self>) -> Pin<&mut PeripheralMutex<State<'a, U, T, P1, P2>>> { fn inner(self: Pin<&mut Self>) -> Pin<&mut PeripheralMutex<State<'a, U, T, P1, P2>>> {
unsafe { Pin::new_unchecked(&mut self.get_unchecked_mut().inner) } unsafe { Pin::new_unchecked(&mut self.get_unchecked_mut().inner) }
} }