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Electrical state of open drain output can be read

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bjoernQ 2022-06-13 09:19:41 +02:00 committed by Jesse Braham
parent 86f4d02782
commit 918f7a7c8e
1 changed files with 13 additions and 1 deletions
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14
esp-hal-common/src/gpio.rs
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@ -500,6 +500,18 @@ macro_rules! impl_input {
}
}
impl embedded_hal::digital::v2::InputPin for $pxi<Output<OpenDrain>> {
type Error = Infallible;
fn is_high(&self) -> Result<bool, Self::Error> {
Ok(self.read_input() & (1 << $bit) != 0)
}
fn is_low(&self) -> Result<bool, Self::Error> {
Ok(!self.is_high()?)
}
}
impl<MODE> $pxi<MODE> {
fn init_input(&self, pull_down: bool, pull_up: bool) {
let gpio = unsafe { &*GPIO::PTR };
@ -750,7 +762,7 @@ macro_rules! impl_output {
w.mcu_sel()
.bits(alternate as u8)
.fun_ie()
.clear_bit()
.bit(open_drain)
.fun_wpd()
.clear_bit()
.fun_wpu()