68 lines
1.8 KiB
Rust
68 lines
1.8 KiB
Rust
#![no_std]
|
|
#![no_main]
|
|
#![feature(type_alias_impl_trait)]
|
|
|
|
#[path = "../example_common.rs"]
|
|
mod example_common;
|
|
use example_common::*;
|
|
|
|
use embassy::blocking_mutex::kind::Noop;
|
|
use embassy::channel::mpsc::{self, Channel, Sender};
|
|
use embassy::executor::Spawner;
|
|
use embassy::util::Forever;
|
|
use embassy_nrf::gpio::NoPin;
|
|
use embassy_nrf::peripherals::UARTE0;
|
|
use embassy_nrf::uarte::UarteRx;
|
|
use embassy_nrf::{interrupt, uarte, Peripherals};
|
|
|
|
static CHANNEL: Forever<Channel<Noop, [u8; 8], 1>> = Forever::new();
|
|
|
|
#[embassy::main]
|
|
async fn main(spawner: Spawner, p: Peripherals) {
|
|
let mut config = uarte::Config::default();
|
|
config.parity = uarte::Parity::EXCLUDED;
|
|
config.baudrate = uarte::Baudrate::BAUD115200;
|
|
|
|
let irq = interrupt::take!(UARTE0_UART0);
|
|
let uart = uarte::Uarte::new(p.UARTE0, irq, p.P0_08, p.P0_06, NoPin, NoPin, config);
|
|
let (mut tx, rx) = uart.split();
|
|
|
|
let c = CHANNEL.put(Channel::new());
|
|
let (s, mut r) = mpsc::split(c);
|
|
|
|
info!("uarte initialized!");
|
|
|
|
// Spawn a task responsible purely for reading
|
|
|
|
unwrap!(spawner.spawn(reader(rx, s)));
|
|
|
|
// Message must be in SRAM
|
|
{
|
|
let mut buf = [0; 23];
|
|
buf.copy_from_slice(b"Type 8 chars to echo!\r\n");
|
|
|
|
unwrap!(tx.write(&buf).await);
|
|
info!("wrote hello in uart!");
|
|
}
|
|
|
|
// Continue reading in this main task and write
|
|
// back out the buffer we receive from the read
|
|
// task.
|
|
loop {
|
|
if let Some(buf) = r.recv().await {
|
|
info!("writing...");
|
|
unwrap!(tx.write(&buf).await);
|
|
}
|
|
}
|
|
}
|
|
|
|
#[embassy::task]
|
|
async fn reader(mut rx: UarteRx<'static, UARTE0>, s: Sender<'static, Noop, [u8; 8], 1>) {
|
|
let mut buf = [0; 8];
|
|
loop {
|
|
info!("reading...");
|
|
unwrap!(rx.read(&mut buf).await);
|
|
unwrap!(s.send(buf).await);
|
|
}
|
|
}
|