Enum ChipError 

pub enum ChipError {
    CheckMacOrVerifyFailed,
    ParseError,
    EccFault,
    SelfTestFailed,
    HealthTestFailed,
    ExecutionError,
    WatchdogAboutToExpire,
    CommandCrcError,
    Unknown(u8),
}

Errors reported by the chip itself via a 4-byte response frame.

Status byte values are taken from the Microchip CryptoAuthLib isATCAError() function.

Variants

CheckMacOrVerifyFailed

0x01 - CheckMac or Verify failed.

ParseError

0x03 - Command byte length, opcode or parameter was illegal.

EccFault

0x05 - Computation error during ECC processing causing invalid results.

SelfTestFailed

0x07 - Chip is in self test failure mode.

HealthTestFailed

0x08 - RNG health test error.

ExecutionError

0x0F - Unspecified execution error.

WatchdogAboutToExpire

0xEE - Watchdog about to expire - command not executed.

CommandCrcError

0xFF - CRC or other communication error on the command sent to the chip.

Unknown(u8)

An unknown status byte. The raw value is preserved for diagnosis.

Implementations

impl ChipError

pub const fn from_status_byte(byte: u8) -> Option<Self>

Map a raw status byte returned by the chip to a ChipError.

Returns None for 0x00 which means success. Exposed as pub so host-side decoders (e.g. the CLI) can reconstruct the variant from the wire byte received in the USB-HID payload.

pub const fn as_status_byte(self) -> u8

Return the raw status byte this variant came from.

Inverse of Self::from_status_byte. For ChipError::Unknown returns the preserved raw byte.

Trait Implementations

impl Clone for ChipError

fn clone(&self) -> ChipError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChipError

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

Formats the value using the given formatter.

impl PartialEq for ChipError

fn eq(&self, other: &ChipError) -> 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 ChipError

impl Eq for ChipError

impl StructuralPartialEq for ChipError