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