2024-03-29 14:06:05 +01:00
21 changed files with 71 additions and 2 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -24,6 +24,7 @@ to check all the API changes in the **Changed** chapter.
 - Added basic support conversions to the `time` library. Introduce new `chrono` and `timelib`
  feature gate.
 - Added `CcsdsTimeProvider::timelib_date_time`.
+- Optional support for `defmt` by adding optional `defmt::Format` derives for common types.

 ## Changed

--- a/Cargo.toml
+++ b/Cargo.toml
@ -48,6 +48,10 @@ optional = true
 version = "0.2"
 default-features = false

+[dependencies.defmt]
+version = "0.3"
+optional = true
+
 [dev-dependencies]
 postcard = "1"
 chrono = "0.4"
@ -59,6 +63,7 @@ serde = ["dep:serde", "chrono/serde"]
 alloc = ["postcard/alloc", "chrono/alloc"]
 chrono = ["dep:chrono"]
 timelib = ["dep:time"]
+defmt = ["dep:defmt"]

 [package.metadata.docs.rs]
 all-features = true
--- a/README.md
+++ b/README.md
@ -45,6 +45,8 @@ deserializing them with an appropriate `serde` provider like
 - [`serde`](https://serde.rs/): Adds `serde` support for most types by adding `Serialize` and `Deserialize` `derive`s
 - [`chrono`](https://crates.io/crates/chrono): Add basic support for the `chrono` time library.
 - [`timelib`](https://crates.io/crates/time): Add basic support for the `time` time library.
+ - [`defmt`](https://defmt.ferrous-systems.com/): Add support for the `defmt` by adding the
+   `defmt::Format` derive on many objects.

 # Examples

--- a/src/cfdp/lv.rs
+++ b/src/cfdp/lv.rs
@ -20,6 +20,7 @@ pub const MIN_LV_LEN: usize = 1;
 ///    this will be the lifetime of that data reference.
 #[derive(Debug, Copy, Clone, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct Lv<'data> {
    data: &'data [u8],
    // If the LV was generated from a raw bytestream, this will contain the start of the
--- a/src/cfdp/mod.rs
+++ b/src/cfdp/mod.rs
@ -18,6 +18,7 @@ pub const CFDP_VERSION_2: u8 = 0b001;

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum PduType {
    FileDirective = 0,
@ -26,6 +27,7 @@ pub enum PduType {

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum Direction {
    TowardsReceiver = 0,
@ -34,6 +36,7 @@ pub enum Direction {

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum TransmissionMode {
    Acknowledged = 0,
@ -42,6 +45,7 @@ pub enum TransmissionMode {

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum CrcFlag {
    NoCrc = 0,
@ -69,6 +73,7 @@ impl From<CrcFlag> for bool {
 /// Always 0 and ignored for File Directive PDUs (CCSDS 727.0-B-5 P.75)
 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum SegmentMetadataFlag {
    NotPresent = 0,
@ -78,6 +83,7 @@ pub enum SegmentMetadataFlag {
 /// Always 0 and ignored for File Directive PDUs (CCSDS 727.0-B-5 P.75)
 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum SegmentationControl {
    NoRecordBoundaryPreservation = 0,
@ -86,6 +92,7 @@ pub enum SegmentationControl {

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum FaultHandlerCode {
    NoticeOfCancellation = 0b0001,
@ -96,6 +103,7 @@ pub enum FaultHandlerCode {

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum ConditionCode {
    /// This is not an error condition for which a faulty handler override can be specified
@ -118,6 +126,7 @@ pub enum ConditionCode {

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum LargeFileFlag {
    /// 32 bit maximum file size and FSS size
@ -129,6 +138,7 @@ pub enum LargeFileFlag {
 /// Transaction status for the ACK PDU field according to chapter 5.2.4 of the CFDP standard.
 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum TransactionStatus {
    /// Transaction is not currently active and the CFDP implementation does not retain a
@ -146,6 +156,7 @@ pub enum TransactionStatus {
 /// [SANA Checksum Types registry](https://sanaregistry.org/r/checksum_identifiers/)
 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum ChecksumType {
    /// Modular legacy checksum
@ -167,6 +178,7 @@ pub const NULL_CHECKSUM_U32: [u8; 4] = [0; 4];

 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum TlvLvError {
    DataTooLarge(usize),
    ByteConversion(ByteConversionError),
--- a/src/cfdp/pdu/ack.rs
+++ b/src/cfdp/pdu/ack.rs
@ -15,6 +15,7 @@ use serde::{Deserialize, Serialize};
 /// For more information, refer to CFDP chapter 5.2.4.
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct AckPdu {
    pdu_header: PduHeader,
    directive_code_of_acked_pdu: FileDirectiveType,
--- a/src/cfdp/pdu/eof.rs
+++ b/src/cfdp/pdu/eof.rs
@ -15,6 +15,7 @@ use super::{CfdpPdu, WritablePduPacket};
 /// For more information, refer to CFDP chapter 5.2.2.
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct EofPdu {
    pdu_header: PduHeader,
    condition_code: ConditionCode,
--- a/src/cfdp/pdu/finished.rs
+++ b/src/cfdp/pdu/finished.rs
@ -14,6 +14,7 @@ use super::{CfdpPdu, WritablePduPacket};

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum DeliveryCode {
    Complete = 0,
@ -22,6 +23,7 @@ pub enum DeliveryCode {

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum FileStatus {
    DiscardDeliberately = 0b00,
@ -34,6 +36,7 @@ pub enum FileStatus {
 ///
 /// For more information, refer to CFDP chapter 5.2.3.
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct FinishedPduCreator<'fs_responses> {
    pdu_header: PduHeader,
    condition_code: ConditionCode,
@ -219,6 +222,7 @@ impl<'buf> Iterator for FilestoreResponseIterator<'buf> {

 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct FinishedPduReader<'buf> {
    pdu_header: PduHeader,
    condition_code: ConditionCode,
--- a/src/cfdp/pdu/metadata.rs
+++ b/src/cfdp/pdu/metadata.rs
@ -15,6 +15,7 @@ use super::{CfdpPdu, WritablePduPacket};

 #[derive(Default, Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct MetadataGenericParams {
    pub closure_requested: bool,
    pub checksum_type: ChecksumType,
@ -55,6 +56,7 @@ pub fn build_metadata_opts_from_vec(
 /// This abstraction exposes a specialized API for creating metadata PDUs as specified in
 /// CFDP chapter 5.2.5.
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct MetadataPduCreator<'src_name, 'dest_name, 'opts> {
    pdu_header: PduHeader,
    metadata_params: MetadataGenericParams,
@ -241,6 +243,7 @@ impl<'opts> Iterator for OptionsIter<'opts> {
 /// involved.
 #[derive(Debug)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct MetadataPduReader<'buf> {
    pdu_header: PduHeader,
    metadata_params: MetadataGenericParams,
--- a/src/cfdp/pdu/mod.rs
+++ b/src/cfdp/pdu/mod.rs
@ -18,6 +18,7 @@ pub mod nak;

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum FileDirectiveType {
    EofPdu = 0x04,
@ -220,6 +221,7 @@ pub trait CfdpPdu {
 /// same.
 #[derive(Debug, Copy, Clone, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct CommonPduConfig {
    source_entity_id: UnsignedByteField,
    dest_entity_id: UnsignedByteField,
@ -358,6 +360,7 @@ pub const FIXED_HEADER_LEN: usize = 4;
 /// For detailed information, refer to chapter 5.1 of the CFDP standard.
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct PduHeader {
    pdu_type: PduType,
    pdu_conf: CommonPduConfig,
--- a/src/cfdp/pdu/nak.rs
+++ b/src/cfdp/pdu/nak.rs
@ -12,6 +12,7 @@ use super::{
 /// Helper type to encapsulate both normal file size segment requests and large file size segment
 /// requests.
 #[derive(Debug, PartialEq, Eq, Clone)]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum SegmentRequests<'a> {
    U32Pairs(&'a [(u32, u32)]),
    U64Pairs(&'a [(u64, u64)]),
@ -31,6 +32,7 @@ impl SegmentRequests<'_> {
 /// It exposes a specialized API which simplifies to generate these NAK PDUs with the
 /// format according to CFDP chapter 5.2.6.
 #[derive(Debug, Clone, PartialEq, Eq)]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct NakPduCreator<'seg_reqs> {
    pdu_header: PduHeader,
    start_of_scope: u64,
@ -353,6 +355,7 @@ impl<T: SegReqFromBytes> SegmentRequestIter<'_, T> {
 ///
 /// The NAK format is expected to be conforming to CFDP chapter 5.2.6.
 #[derive(Debug, PartialEq, Eq)]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct NakPduReader<'seg_reqs> {
    pdu_header: PduHeader,
    start_of_scope: u64,
--- a/src/cfdp/tlv/mod.rs
+++ b/src/cfdp/tlv/mod.rs
@ -52,6 +52,7 @@ pub trait WritableTlv {

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum TlvType {
    FilestoreRequest = 0x00,
@ -64,6 +65,7 @@ pub enum TlvType {

 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum TlvTypeField {
    Standard(TlvType),
    Custom(u8),
@ -71,6 +73,7 @@ pub enum TlvTypeField {

 #[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum FilestoreActionCode {
    CreateFile = 0b0000,
@ -118,6 +121,7 @@ impl From<TlvTypeField> for u8 {
 ///    this will be the lifetime of that data reference.
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct Tlv<'data> {
    tlv_type_field: TlvTypeField,
    #[cfg_attr(feature = "serde", serde(borrow))]
@ -224,6 +228,7 @@ pub(crate) fn verify_tlv_type(raw_type: u8, expected_tlv_type: TlvType) -> Resul

 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct EntityIdTlv {
    entity_id: UnsignedByteField,
 }
@ -348,6 +353,7 @@ pub fn fs_request_has_second_filename(action_code: FilestoreActionCode) -> bool

 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 struct FilestoreTlvBase<'first_name, 'second_name> {
    pub action_code: FilestoreActionCode,
    #[cfg_attr(feature = "serde", serde(borrow))]
@ -561,6 +567,7 @@ impl GenericTlv for FilestoreRequestTlv<'_, '_> {

 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct FilestoreResponseTlv<'first_name, 'second_name, 'fs_msg> {
    #[cfg_attr(feature = "serde", serde(borrow))]
    base: FilestoreTlvBase<'first_name, 'second_name>,
--- a/src/ecss/hk.rs
+++ b/src/ecss/hk.rs
@ -5,6 +5,7 @@ use serde::{Deserialize, Serialize};

 #[derive(Debug, Eq, PartialEq, Copy, Clone, IntoPrimitive, TryFromPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 pub enum Subservice {
    // Regular HK
--- a/src/ecss/mod.rs
+++ b/src/ecss/mod.rs
@ -74,6 +74,7 @@ pub enum PusServiceId {
 /// All PUS versions. Only PUS C is supported by this library.
 #[derive(PartialEq, Eq, Copy, Clone, Debug)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[non_exhaustive]
 pub enum PusVersion {
    EsaPus = 0,
@ -150,6 +151,7 @@ pub enum PfcReal {

 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum PusError {
    VersionNotSupported(PusVersion),
    ChecksumFailure(u16),
--- a/src/ecss/tc.rs
+++ b/src/ecss/tc.rs
@ -61,6 +61,7 @@ pub trait IsPusTelecommand {}

 #[derive(Debug, Eq, PartialEq, Copy, Clone, IntoPrimitive, TryFromPrimitive)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[repr(u8)]
 enum AckOpts {
    Acceptance = 0b1000,
@ -146,6 +147,7 @@ pub mod zc {

 #[derive(PartialEq, Eq, Copy, Clone, Debug)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct PusTcSecondaryHeader {
    pub service: u8,
    pub subservice: u8,
@ -548,6 +550,7 @@ pub mod legacy_tc {
 /// There is no spare bytes support yet.
 #[derive(Copy, Clone, Debug, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct PusTcCreator<'raw_data> {
    sp_header: SpHeader,
    pub sec_header: PusTcSecondaryHeader,
@ -750,6 +753,7 @@ impl IsPusTelecommand for PusTcCreator<'_> {}
 /// * `'raw_data` - Lifetime of the provided raw slice.
 #[derive(Eq, Copy, Clone, Debug)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct PusTcReader<'raw_data> {
    #[cfg_attr(feature = "serde", serde(skip))]
    raw_data: &'raw_data [u8],
--- a/src/ecss/tm.rs
+++ b/src/ecss/tm.rs
@ -116,6 +116,7 @@ pub mod zc {

 #[derive(PartialEq, Eq, Copy, Clone, Debug)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct PusTmSecondaryHeader<'stamp> {
    pus_version: PusVersion,
    pub sc_time_ref_status: u8,
@ -539,6 +540,7 @@ pub mod legacy_tm {
 /// * `'raw_data` - This is the lifetime of the user provided time stamp and source data.
 #[derive(Eq, Debug, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct PusTmCreator<'raw_data> {
    pub sp_header: SpHeader,
    pub sec_header: PusTmSecondaryHeader<'raw_data>,
@ -777,6 +779,7 @@ impl IsPusTelemetry for PusTmCreator<'_> {}
 /// * `'raw_data` - Lifetime of the raw slice this class is constructed from.
 #[derive(Eq, Debug, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct PusTmReader<'raw_data> {
    pub sp_header: SpHeader,
    pub sec_header: PusTmSecondaryHeader<'raw_data>,
--- a/src/lib.rs
+++ b/src/lib.rs
@ -93,6 +93,7 @@ pub const MAX_SEQ_COUNT: u16 = 2u16.pow(14) - 1;
 /// Generic error type when converting to and from raw byte slices.
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum ByteConversionError {
    /// The passed slice is too small. Returns the passed slice length and expected minimum size
    ToSliceTooSmall {
@ -142,6 +143,7 @@ impl Error for ByteConversionError {}
 /// CCSDS packet type enumeration.
 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum PacketType {
    Tm = 0,
    Tc = 1,
@ -165,6 +167,7 @@ pub fn packet_type_in_raw_packet_id(packet_id: u16) -> PacketType {

 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum SequenceFlags {
    ContinuationSegment = 0b00,
    FirstSegment = 0b01,
@ -192,6 +195,7 @@ impl TryFrom<u8> for SequenceFlags {
 /// of the first two bytes in the CCSDS primary header.
 #[derive(Debug, Eq, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct PacketId {
    pub ptype: PacketType,
    pub sec_header_flag: bool,
@ -303,6 +307,7 @@ impl From<u16> for PacketId {
 /// third and the fourth byte in the CCSDS primary header.
 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct PacketSequenceCtrl {
    pub seq_flags: SequenceFlags,
    seq_count: u16,
@ -463,6 +468,7 @@ pub trait CcsdsPrimaryHeader {
 /// * `data_len` - Data length field occupies the fifth and the sixth byte of the raw header
 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct SpHeader {
    pub version: u8,
    pub packet_id: PacketId,
@ -798,7 +804,7 @@ pub(crate) mod tests {
        let id_default = PacketId::default();
        assert_eq!(id_default.ptype, PacketType::Tm);
        assert_eq!(id_default.apid, 0x000);
-        assert_eq!(id_default.sec_header_flag, false);
+        assert!(!id_default.sec_header_flag);
    }

    #[test]
@ -808,7 +814,7 @@ pub(crate) mod tests {
        let packet_id = packet_id.unwrap();
        assert_eq!(packet_id.apid(), 0x1ff);
        assert_eq!(packet_id.ptype, PacketType::Tc);
-        assert_eq!(packet_id.sec_header_flag, true);
+        assert!(packet_id.sec_header_flag);
        let packet_id_tc = PacketId::tc(true, 0x1ff);
        assert!(packet_id_tc.is_some());
        let packet_id_tc = packet_id_tc.unwrap();
--- a/src/time/cds.rs
+++ b/src/time/cds.rs
@ -78,6 +78,7 @@ impl ProvidesDaysLength for DaysLen24Bits {

 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum LengthOfDaySegment {
    Short16Bits = 0,
    Long24Bits = 1,
@ -94,6 +95,7 @@ pub enum SubmillisPrecision {

 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum CdsError {
    /// CCSDS days value exceeds maximum allowed size or is negative
    InvalidCcsdsDays(i64),
--- a/src/time/cuc.rs
+++ b/src/time/cuc.rs
@ -37,6 +37,7 @@ pub const MAX_CUC_LEN_SMALL_PREAMBLE: usize = 8;

 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum FractionalResolution {
    /// No fractional part, only second resolution
    Seconds = 0,
@ -105,6 +106,7 @@ pub fn fractional_part_from_subsec_ns(res: FractionalResolution, ns: u64) -> Fra

 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum CucError {
    InvalidCounterWidth(u8),
    /// Invalid counter supplied.
--- a/src/time/mod.rs
+++ b/src/time/mod.rs
@ -33,6 +33,7 @@ pub const NANOS_PER_SECOND: u32 = 1_000_000_000;

 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum CcsdsTimeCode {
    CucCcsdsEpoch = 0b001,
    CucAgencyEpoch = 0b010,
@ -65,6 +66,7 @@ pub fn ccsds_time_code_from_p_field(pfield: u8) -> Result<CcsdsTimeCode, u8> {

 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct DateBeforeCcsdsEpochError(UnixTime);

 impl Display for DateBeforeCcsdsEpochError {
@ -78,6 +80,7 @@ impl Error for DateBeforeCcsdsEpochError {}

 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 #[non_exhaustive]
 pub enum TimestampError {
    InvalidTimeCode { expected: CcsdsTimeCode, found: u8 },
@ -262,6 +265,7 @@ pub trait CcsdsTimeProvider {
 /// similarly to other common time formats and libraries.
 #[derive(Default, Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct UnixTime {
    secs: i64,
    subsec_nanos: u32,
--- a/src/util.rs
+++ b/src/util.rs
@ -131,6 +131,7 @@ impl Error for UnsignedByteFieldError {}
 /// Type erased variant.
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct UnsignedByteField {
    width: usize,
    value: u64,
@ -220,6 +221,7 @@ impl UnsignedEnum for UnsignedByteField {

 #[derive(Debug, Copy, Clone, Eq, PartialEq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub struct GenericUnsignedByteField<TYPE: Copy + Into<u64>> {
    value: TYPE,
 }