embedded-trainings-2020/beginner/apps/src/bin/radio-puzzle.rs

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2020-06-09 09:52:27 +00:00
#![deny(unused_must_use)]
#![no_main]
#![no_std]
use core::str;
use cortex_m_rt::entry;
use dk::ieee802154::Packet;
use panic_log as _; // the panicking behavior
#[entry]
fn main() -> ! {
let board = dk::init().unwrap();
let mut radio = board.radio;
let mut packet = Packet::new();
// try these
let msg = "";
// let msg = "A";
// let msg = "Hello?";
packet.copy_from_slice(msg.as_bytes());
radio.send(&packet);
log::info!("sent: {:?}", msg);
// listen for a response packet and ensure it is not corrupted
if radio.recv(&mut packet).is_ok() {
// convert the packet contents to str or print error message on failure
let response = str::from_utf8(&*packet).expect("could not convert response to str");
log::info!("received: {}", response);
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}
dk::exit()
}