Crate crsf

This crate provides a #[no_std] parser for the crossfire protocol.

Usage

Packet Parsing

use crsf::{PacketParser, PacketAddress, PacketType};

let mut parser = PacketParser::<1024>::new();

// Sync
parser.push_bytes(&[PacketAddress::Controller as u8]);
// Len
parser.push_bytes(&[24]);
// Type
parser.push_bytes(&[PacketType::RcChannelsPacked as u8]);
// Payload
parser.push_bytes(&[0; 22]);
// Checksum
parser.push_bytes(&[239]);

while let Some(Ok((dest, packet))) = parser.next_packet() {
    println!("{:?} {:?}", dest, packet);
}

Packet Construction

use crsf::{Packet, PacketAddress, RcChannels};

let channels: [u16; 16] = [0xffff; 16];
let packet = Packet::RcChannels(RcChannels(channels));
let raw_packet = packet.into_raw(PacketAddress::Transmitter);
println!("{:?}", raw_packet.data());

Structs

DefaultChannelsMapper

Maps channel values to the ones that betaflight uses(1000->2000)

LinkStatistics

Stores LinkStatistics packet data

PacketParser

Crossfire packet parser

RawPacket

Stores raw packet data

RcChannels

Stores RcChannelsPacked packet data

RcChannelsMapped

Maps channels according to a ChannelMapper

Enums

Packet

Represents different kinds of packets

PacketAddress

Represents packet addresses

PacketError

Represents packet errors

PacketType

Crossfire packet types

Constants

MAX_PACKET_LENGTH

Max crsf packet length

PACKET_HEADER_LENGTH

Crsf packet header length

Traits

ChannelMapper

Trait for mapping channel values