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crc8

pamoja_hal::onewire

Function crc8 

Source 
pub fn crc8(data: &[u8]) -> u8
Expand description

Computes the Maxim 1-Wire CRC-8 over data.

This is the CRC every 1-Wire device appends to its ROM code, and the DS18B20 to its scratchpad. The polynomial is X^8 + X^5 + X^4 + 1, processed least-significant-bit first from a zero shift register, which is the reflected form 0x8C.

§Arguments

  • data - the bytes the CRC covers, in transmission order.

§Returns

The 8-bit CRC. Over a message followed by its own CRC byte the result is zero.

§Examples

use pamoja_hal::onewire::crc8;

// The published check value of CRC-8/MAXIM over the ASCII digits 1 to 9.
assert_eq!(crc8(b"123456789"), 0xA1);