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Merge #765

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765: Implement Output::is_set_low for embassy-rp r=Dirbaio a=danbev

This commit implements a suggestion for the method `is_set_low` which is
currently a `todo`, by reading last value written to `GPIO_OUT`.

Co-authored-by: Daniel Bevenius <daniel.bevenius@gmail.com>
This commit is contained in:
bors[bot] 2022-05-11 16:58:18 +00:00 committed by GitHub
commit 6040517774
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1 changed files with 3 additions and 2 deletions
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embassy-rp/src/gpio.rs
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@ -127,8 +127,9 @@ impl<'d, T: Pin> Output<'d, T> {
/// Is the output pin set as low? /// Is the output pin set as low?
pub fn is_set_low(&self) -> bool { pub fn is_set_low(&self) -> bool {
// todo // Reading from SIO: GPIO_OUT gives the last value written.
true let val = 1 << self.pin.pin();
unsafe { (self.pin.sio_out().value().read() & val) == 0 }
} }
} }