embassy/examples/stm32l0/src/bin/usart_irq.rs
xoviat 316be179af stm32: move to bind_interrupts
disable lora functionality for now
2023-05-24 17:29:56 -05:00

38 lines
1.0 KiB
Rust

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::usart::{BufferedUart, Config};
use embassy_stm32::{bind_interrupts, peripherals, usart};
use embedded_io::asynch::{Read, Write};
use {defmt_rtt as _, panic_probe as _};
bind_interrupts!(struct Irqs {
USART2 => usart::BufferedInterruptHandler<peripherals::USART2>;
});
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_stm32::init(Default::default());
info!("Hi!");
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 mut usart = unsafe { BufferedUart::new(p.USART2, Irqs, p.PA3, p.PA2, &mut TX_BUFFER, &mut RX_BUFFER, config) };
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();
}
}