CRC

Overview

A cyclic redundancy check (CRC) is used for decteting error in a transmission.

Core available

• CRCCombinational currently tested only with crc8, crc16 and crc32

Interface

Interface		Signal		Description
cmd	Flow	valid	Bool	valid
		data	Bits	Message
		mode	CRCCombinationalCmdMode	INIT, UPDATE
crc	Bits	crc	Bits	CRC result

Timing

Measure

Core	Target	Performance	Aera	RAM
Combinational	Altera Cyclone V (C6)	-	-	-

Example

import spinal.crypto.checksum._

val crcConfig = CRCCombinationalConfig(
	crcConfig = CRC32.Standard,
	dataWidth = 8 bits
)

val crc = new CRCCombinational(config)
crc.io.cmd.valid := ...
crc.io.cmd.data  := ...
crc.io.cmd.mode  := CRCCombinationalCmdMode.INIT

val result = crc.io.crc