Struct Crc7

#[repr(C)]
pub struct Crc7(/* private fields */);

Represents the 7-bit CRC used to protect SD memory card commands, responses, and data transfer messages.

Implementations

impl Crc7

pub const fn new() -> Self

Creates a new Crc7.

pub const fn bits(&self) -> u8

Gets the inner representation of the Crc7 bits.

pub const fn from_bits(val: u8) -> Self

Converts a u8 into a Crc7.

pub const fn calculate(data: &[u8]) -> Self

Calculates the CRC7 value according the algorithm defined in the simplified physical specification. See section “4.5 Cyclic Redundancy Code” for details.

Generator Polynomial: G(x) = x^7 + x^3 + 1
M(x) = (first bit) * x^n + (second bit) * x^n-1 + ... + (last bit) * x^0
CRC[6..0] = Remainder[(M(x) * x^7) / G(x)]

Implementation based on the lookup table algorithm from: hazelnusse/crc7.

Trait Implementations

impl Clone for Crc7

fn clone(&self) -> Crc7

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Crc7

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

Formats the value using the given formatter.

impl Default for Crc7

fn default() -> Self

Returns the “default value” for a type.

impl From<Crc7> for End

fn from(val: Crc7) -> Self

Converts to this type from the input type.

impl From<Crc7> for u8

fn from(val: Crc7) -> Self

Converts to this type from the input type.

impl From<End> for Crc7

fn from(val: End) -> Self

Converts to this type from the input type.

impl From<u8> for Crc7

fn from(val: u8) -> Self

Converts to this type from the input type.

impl PartialEq for Crc7

fn eq(&self, other: &Crc7) -> 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 Copy for Crc7

impl Eq for Crc7

impl StructuralPartialEq for Crc7