Struct Bbheader 

pub struct Bbheader {
    pub matype: Matype,
    pub upl: u16,
    pub sync: u8,
    pub dfl: u16,
    pub syncd: u16,
    pub mode: Mode,
    pub issy_in_header: Option<[u8; 3]>,
}

Parsed 10-byte BBHEADER.

Fields vary based on Mode:

• NM (MODE=0): upl, sync are from the header; issy_in_header is None.
• HEM (MODE=1): upl and sync are both zero; issy_in_header carries the 3 ISSY bytes that reuse the NM UPL/SYNC layout.

Detection: crc8(bytes[0..9]) ^ bytes[9] yields 0 for NM, 1 for HEM.

Fields

matype: Matype

MATYPE field.

upl: u16

User Packet Length in bits (NM only; 0 in HEM).

sync: u8

Copy of the User Packet Sync-byte (NM only; 0 in HEM).

dfl: u16

Data Field Length in bits.

syncd: u16

Distance in bits from DATA FIELD start to the first complete UP beginning.

mode: Mode

Detected mode (NM vs HEM).

issy_in_header: Option<[u8; 3]>

3-byte ISSY from header bytes (HEM only; None in NM).

Implementations

impl Bbheader

pub fn parse(bytes: &[u8]) -> Result<Self, Error>

Parse a 10-byte BBHEADER, detecting NM vs HEM automatically.

Mode detection per EN 302 755 §5.1.7: mode = crc8(bytes[0..9]) ^ bytes[9] (0 = NM, 1 = HEM). Values other than 0 or 1 return Error::InvalidMode.

pub fn serialize(&self) -> [u8; 10]

Serialize the BBHEADER back to its 10-byte wire format.

Trait Implementations

impl Clone for Bbheader

fn clone(&self) -> Bbheader

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Bbheader

impl Debug for Bbheader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Bbheader

impl PartialEq for Bbheader

fn eq(&self, other: &Bbheader) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Bbheader

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Bbheader