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

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#![deny(unused_must_use)]
#![no_main]
#![no_std]
use core::str;
use cortex_m_rt::entry;
use dk::ieee802154::{Channel, Packet};
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use panic_log as _; // the panicking behavior
const TEN_MS: u32 = 10_000;
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#[entry]
fn main() -> ! {
let board = dk::init().unwrap();
let mut radio = board.radio;
let mut timer = board.timer;
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// puzzle.hex uses channel 25
radio.set_channel(Channel::_25);
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let mut packet = Packet::new();
// try these
let msg = b"";
// let msg = b"A";
// let msg = b"Hello?";
packet.copy_from_slice(msg);
log::info!(
"sending: {}",
str::from_utf8(msg).expect("msg was not valid UTF-8 data")
);
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radio.send(&packet);
if radio.recv_timeout(&mut packet, &mut timer, TEN_MS).is_ok() {
log::info!(
"received: {}",
str::from_utf8(&packet).expect("response was not valid UTF-8 data")
);
} else {
log::error!("no response or response packet was corrupted");
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}
dk::exit()
}