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stm32: add RX Pull configuration option to USART

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This commit is contained in:
Beat Küng 2024-10-12 10:35:43 +02:00
parent 9555259c57
commit 0bf99820f3
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GPG Key ID: 866DB5F0E24821BB
2 changed files with 13 additions and 9 deletions
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4
embassy-stm32/src/usart/buffered.rs
View File

@ -210,7 +210,7 @@ impl<'d> BufferedUart<'d> {
) -> Result<Self, ConfigError> {
Self::new_inner(
peri,
new_pin!(rx, AfType::input(Pull::None)),
new_pin!(rx, AfType::input(config.rx_pull)),
new_pin!(tx, AfType::output(OutputType::PushPull, Speed::Medium)),
None,
None,
@ -260,7 +260,7 @@ impl<'d> BufferedUart<'d> {
) -> Result<Self, ConfigError> {
Self::new_inner(
peri,
new_pin!(rx, AfType::input(Pull::None)),
new_pin!(rx, AfType::input(config.rx_pull)),
new_pin!(tx, AfType::output(OutputType::PushPull, Speed::Medium)),
None,
None,

18
embassy-stm32/src/usart/mod.rs
View File

@ -167,6 +167,9 @@ pub struct Config {
#[cfg(any(usart_v3, usart_v4))]
pub invert_rx: bool,
/// Set the pull configuration for the RX pin.
pub rx_pull: Pull,
// private: set by new_half_duplex, not by the user.
half_duplex: bool,
}
@ -175,7 +178,7 @@ impl Config {
fn tx_af(&self) -> AfType {
#[cfg(any(usart_v3, usart_v4))]
if self.swap_rx_tx {
return AfType::input(Pull::None);
return AfType::input(self.rx_pull);
};
AfType::output(OutputType::PushPull, Speed::Medium)
}
@ -185,7 +188,7 @@ impl Config {
if self.swap_rx_tx {
return AfType::output(OutputType::PushPull, Speed::Medium);
};
AfType::input(Pull::None)
AfType::input(self.rx_pull)
}
}
@ -206,6 +209,7 @@ impl Default for Config {
invert_tx: false,
#[cfg(any(usart_v3, usart_v4))]
invert_rx: false,
rx_pull: Pull::None,
half_duplex: false,
}
}
@ -448,7 +452,7 @@ impl<'d> UartTx<'d, Blocking> {
Self::new_inner(
peri,
new_pin!(tx, AfType::output(OutputType::PushPull, Speed::Medium)),
new_pin!(cts, AfType::input(Pull::None)),
new_pin!(cts, AfType::input(config.rx_pull)),
None,
config,
)
@ -567,7 +571,7 @@ impl<'d> UartRx<'d, Async> {
) -> Result<Self, ConfigError> {
Self::new_inner(
peri,
new_pin!(rx, AfType::input(Pull::None)),
new_pin!(rx, AfType::input(config.rx_pull)),
None,
new_dma!(rx_dma),
config,
@ -585,7 +589,7 @@ impl<'d> UartRx<'d, Async> {
) -> Result<Self, ConfigError> {
Self::new_inner(
peri,
new_pin!(rx, AfType::input(Pull::None)),
new_pin!(rx, AfType::input(config.rx_pull)),
new_pin!(rts, AfType::output(OutputType::PushPull, Speed::Medium)),
new_dma!(rx_dma),
config,
@ -815,7 +819,7 @@ impl<'d> UartRx<'d, Blocking> {
rx: impl Peripheral<P = impl RxPin<T>> + 'd,
config: Config,
) -> Result<Self, ConfigError> {
Self::new_inner(peri, new_pin!(rx, AfType::input(Pull::None)), None, None, config)
Self::new_inner(peri, new_pin!(rx, AfType::input(config.rx_pull)), None, None, config)
}
/// Create a new rx-only UART with a request-to-send pin
@ -827,7 +831,7 @@ impl<'d> UartRx<'d, Blocking> {
) -> Result<Self, ConfigError> {
Self::new_inner(
peri,
new_pin!(rx, AfType::input(Pull::None)),
new_pin!(rx, AfType::input(config.rx_pull)),
new_pin!(rts, AfType::output(OutputType::PushPull, Speed::Medium)),
None,
config,