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stm32: usart pin inversion

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lights0123 2023-12-10 18:39:45 -05:00
parent 343be37f39
commit dfba51d3f2
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1 changed files with 17 additions and 1 deletions
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16
embassy-stm32/src/usart/mod.rs
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@ -132,6 +132,14 @@ pub struct Config {
/// Set this to true to swap the RX and TX pins. /// Set this to true to swap the RX and TX pins.
#[cfg(any(usart_v3, usart_v4))] #[cfg(any(usart_v3, usart_v4))]
pub swap_rx_tx: bool, pub swap_rx_tx: bool,
/// Set this to true to invert TX pin signal values (V<sub>DD</sub> =0/mark, Gnd = 1/idle).
#[cfg(any(usart_v3, usart_v4))]
pub invert_tx: bool,
/// Set this to true to invert RX pin signal values (V<sub>DD</sub> =0/mark, Gnd = 1/idle).
#[cfg(any(usart_v3, usart_v4))]
pub invert_rx: bool,
} }
impl Default for Config { impl Default for Config {
@ -147,6 +155,10 @@ impl Default for Config {
assume_noise_free: false, assume_noise_free: false,
#[cfg(any(usart_v3, usart_v4))] #[cfg(any(usart_v3, usart_v4))]
swap_rx_tx: false, swap_rx_tx: false,
#[cfg(any(usart_v3, usart_v4))]
invert_tx: false,
#[cfg(any(usart_v3, usart_v4))]
invert_rx: false,
} }
} }
} }
@ -972,7 +984,11 @@ fn configure(
}); });
#[cfg(any(usart_v3, usart_v4))] #[cfg(any(usart_v3, usart_v4))]
{
w.set_txinv(config.invert_tx);
w.set_rxinv(config.invert_rx);
w.set_swap(config.swap_rx_tx); w.set_swap(config.swap_rx_tx);
}
}); });
#[cfg(not(usart_v1))] #[cfg(not(usart_v1))]