Struct Config

pub struct Config { /* private fields */ }

CRC unit configuration.

Implementations

impl Config

pub const fn new() -> Self

Creates the Config struct with the default configuration of the STM32H7 CRC unit:

• 0x04C1_1DB7 polynomial
• 0xFFFF_FFFF initial value
• Bits not reflected
• 0 output XOR

This configuration is the MPEG-2 CRC.

pub const fn polynomial(self, poly: Polynomial) -> Self

Set the polynomial.

pub const fn initial_value(self, initial: u32) -> Self

Set the initial value of the CRC. The CRC unit will only use the needed bits to match the polynomial; the default initial value 0xFFFF_FFFF will actually write 0x7F in the case of a 7-bit CRC, for example.

pub const fn reverse_input(self, reverse: Option<BitReversal>) -> Self

Set how to reverse the bits of the input. None means no reversal.

pub const fn reverse_output(self, reverse: bool) -> Self

Set whether to reverse the bits of the output.

pub fn reflect(self, reflect: bool) -> Self

Set whether to reflect the CRC. When enabled, reflection is BitReversal::Byte and output reversal enabled. This is simply a convenience function as many CRC algorithms call for this.

pub const fn output_xor(self, output_xor: u32) -> Self

Set the value to XOR the output with. Automatically masked to the proper size.

Trait Implementations

impl Clone for Config

fn clone(&self) -> Config

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Config

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

Formats the value using the given formatter.

impl Default for Config

fn default() -> Self

Calls Config::new.

impl PartialEq for Config

fn eq(&self, other: &Config) -> 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 StructuralPartialEq for Config