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embassy-stm32: add rs485 driver enable to uart

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This commit is contained in:
Vincent Stakenburg
2022-12-09 14:26:09 +01:00
parent 58ab829049
commit 236d104844
3 changed files with 55 additions and 0 deletions
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27
embassy-stm32/src/usart/buffered.rs
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@ -89,6 +89,33 @@ impl<'d, T: BasicInstance> BufferedUart<'d, T> {
Self::new_inner(state, peri, rx, tx, irq, tx_buffer, rx_buffer, config)
}
#[cfg(not(usart_v1))]
pub fn new_with_de(
state: &'d mut State<'d, T>,
peri: impl Peripheral<P = T> + 'd,
rx: impl Peripheral<P = impl RxPin<T>> + 'd,
tx: impl Peripheral<P = impl TxPin<T>> + 'd,
irq: impl Peripheral<P = T::Interrupt> + 'd,
de: impl Peripheral<P = impl DePin<T>> + 'd,
tx_buffer: &'d mut [u8],
rx_buffer: &'d mut [u8],
config: Config,
) -> BufferedUart<'d, T> {
into_ref!(de);
T::enable();
T::reset();
unsafe {
de.set_as_af(de.af_num(), AFType::OutputPushPull);
T::regs().cr3().write(|w| {
w.set_dem(true);
});
}
Self::new_inner(state, peri, rx, tx, irq, tx_buffer, rx_buffer, config)
}
fn new_inner(
state: &'d mut State<'d, T>,
_peri: impl Peripheral<P = T> + 'd,