30 lines
701 B
Rust

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use cortex_m_rt::entry;
use embassy_stm32::dma::NoDma;
use embassy_stm32::usart::{Config, Uart};
use example_common::*;
#[entry]
fn main() -> ! {
info!("Hello World!");
let p = embassy_stm32::init(Default::default());
let config = Config::default();
let mut usart = Uart::new(p.USART3, p.PD9, p.PD8, NoDma, NoDma, config);
unwrap!(usart.blocking_write(b"Hello Embassy World!\r\n"));
info!("wrote Hello, starting echo");
let mut buf = [0u8; 1];
loop {
unwrap!(usart.blocking_read(&mut buf));
unwrap!(usart.blocking_write(&buf));
}
}