embassy_stm32_plus/builder/uart/uart4/
rx.rs

1use embassy_stm32::mode::Async;
2use embassy_stm32::peripherals::{DMA2_CH3, PC11, UART4};
3use embassy_stm32::usart::{Config, ConfigError, UartRx};
4use crate::builder::uart::base::UartBase;
5use crate::builder::uart::uart4::Irqs;
6
7/// uart4 rx builder
8pub struct Uart4RxBuilder {
9    /// uart4 base device
10    pub base: UartBase<UART4>,
11    /// rx pin
12    pub rx: PC11,
13}
14
15/// custom method
16impl Uart4RxBuilder {
17    /// create builder
18    #[inline]
19    pub fn new(uart: UART4, rx: PC11) -> Self {
20        Self { base: UartBase::new(uart), rx }
21    }
22
23    /// set uart config
24    #[inline]
25    pub fn config(mut self, config: Config) -> Self {
26        self.base.set_config(config);
27        self
28    }
29
30    /// build uart rx that supports read data
31    #[inline]
32    pub fn build(self, rx_dma: DMA2_CH3) -> Result<UartRx<'static, Async>, ConfigError> {
33        UartRx::new(self.base.uart, Irqs, self.rx, rx_dma, self.base.config.unwrap_or_default())
34    }
35}