65 lines
1.4 KiB
Rust
65 lines
1.4 KiB
Rust
use embassy::util::PeripheralBorrow;
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use crate::pac::usart_v1::{regs, vals, Usart};
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use crate::peripherals;
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mod sealed {
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use super::*;
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pub trait Instance {
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fn regs(&self) -> Usart;
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}
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}
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#[non_exhaustive]
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pub struct Config {
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pub baudrate: u32,
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pub data_bits: u8,
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pub stop_bits: u8,
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}
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impl Default for Config {
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fn default() -> Self {
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Self {
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baudrate: 115200,
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data_bits: 8,
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stop_bits: 1,
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}
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}
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}
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pub struct Uart<'d, T: Instance> {
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inner: T,
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phantom: PhantomData<&'d mut T>,
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}
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impl<'d, T: Instance> Uart<'d, T> {
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pub fn new(
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inner: impl PeripheralBorrow<Target = T>,
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tx: impl PeripheralBorrow<Target = impl TxPin<T>>,
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rx: impl PeripheralBorrow<Target = impl RxPin<T>>,
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cts: impl PeripheralBorrow<Target = impl CtsPin<T>>,
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rts: impl PeripheralBorrow<Target = impl RtsPin<T>>,
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config: Config,
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) -> Self {
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unborrow!(inner, tx, rx, cts, rts);
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}
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}
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pub trait Instance: sealed::Instance {}
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macro_rules! impl_instance {
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($type:ident, $addr:expr) => {
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impl sealed::Instance for peripherals::$type {
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fn regs(&self) -> Usart {
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Usart($addr as _)
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}
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}
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impl Instance for peripherals::$type {}
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};
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}
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impl_instance!(USART1, 0x40011000);
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impl_instance!(USART2, 0x40004400);
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impl_instance!(USART3, 0x40004800);
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impl_instance!(USART6, 0x40011400);
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