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#![no_std]
#![no_main]
#![feature(trait_alias)]
#![feature(type_alias_impl_trait)]
#![allow(incomplete_features)]
#[path = "../example_common.rs"]
mod example_common;
use example_common::*;
use defmt::panic;
use embassy::executor::Spawner;
use embassy::io::{AsyncBufReadExt, AsyncWriteExt};
use embassy_stm32::dma::NoDma;
use embassy_stm32::interrupt;
use embassy_stm32::usart::{BufferedUart, Config, State, Uart};
use embassy_stm32::Peripherals;
#[embassy::main]
async fn main(_spawner: Spawner, p: Peripherals) {
static mut TX_BUFFER: [u8; 8] = [0; 8];
static mut RX_BUFFER: [u8; 256] = [0; 256];
let mut config = Config::default();
config.baudrate = 9600;
let usart = Uart::new(p.USART1, p.PA10, p.PA9, NoDma, NoDma, config);
let mut state = State::new();
let mut usart = unsafe {
BufferedUart::new(
&mut state,
usart,
interrupt::take!(USART1),
&mut TX_BUFFER,
&mut RX_BUFFER,
)
};
usart.write_all(b"Hello Embassy World!\r\n").await.unwrap();
info!("wrote Hello, starting echo");
let mut buf = [0; 4];
loop {
usart.read_exact(&mut buf[..]).await.unwrap();
usart.write_all(&buf[..]).await.unwrap();
}
}
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