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Fix PIO rx fifo status (#367)

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* Implement embedded-hal 1.0.0-alpha.8 traits

* Add comment about missing SPI traits

* Fix doc of rx.is_empty() and add rx.is_full()
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Jan Niehusmann 2022-06-24 00:24:27 +02:00 • committed by GitHub
parent 99dfeaf6f2
commit e5897ca7a4
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1 changed files with 6 additions and 1 deletions
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7
rp2040-hal/src/pio.rs
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@ -1138,10 +1138,15 @@ impl<SM: ValidStateMachine> Rx<SM> {
.modify(|_, w| w.autopush().bit(enable)) .modify(|_, w| w.autopush().bit(enable))
} }
/// Indicate if the tx FIFO is full /// Indicate if the rx FIFO is empty
pub fn is_empty(&self) -> bool { pub fn is_empty(&self) -> bool {
self.register_block().fstat.read().rxempty().bits() & (1 << SM::id()) != 0 self.register_block().fstat.read().rxempty().bits() & (1 << SM::id()) != 0
} }
/// Indicate if the rx FIFO is full
pub fn is_full(&self) -> bool {
self.register_block().fstat.read().rxfull().bits() & (1 << SM::id()) != 0
}
} }
/// PIO TX FIFO handle. /// PIO TX FIFO handle.