This crate implements the Crazyflie Syslink packet format.
Syslink is the internal format that is used to communicate messages between the main processor and the communication processor on the Crazyflie.
This crate uses heapless::Vec to allow a
Packet to own its data. The static maximum size of a packet is therefor
limited to 64 bytes. This is inspired by the MTU used in the official
Crazyflie firmware. The downside of this is that we can potentially use a lot
more memory than necessary, but the upside is that it is easier to read from a
stream of bytes and reclaim the bytes back to the stream once successfully
parsed.
use syslink::{Packet, ParseError};
// We get some data into our buffer, but the following is an incomplete packet
let buffer = [0xBC, 0xCF, 0x00];
// We are missing the length parameter
assert_eq!(Packet::from(&buffer), Err(ParseError::Incomplete(1)));
// ...
// Later we get some more data into our buffer
let buffer = [0xBC, 0xCF, 0x00, 0, 0, 0];
assert_eq!(Packet::from(&buffer),
Ok((&[][..], Packet::new(syslink::PacketType::from(0x00), &[][..]).unwrap())));
// The packet above represent a NULL packet without data