ChannelFrameBaseTCalculateChecksum Method

Calculates checksum of given buffer.

Namespace: GSF.PhasorProtocols
Assembly: GSF.PhasorProtocols (in GSF.PhasorProtocols.dll) Version: 2.4.218-beta

Syntax

protected abstract ushort CalculateChecksum(
	byte[] buffer,
	int offset,
	int length
)

Protected MustOverride Function CalculateChecksum ( 
	buffer As Byte(),
	offset As Integer,
	length As Integer
) As UShort

protected:
virtual unsigned short CalculateChecksum(
	array<unsigned char>^ buffer, 
	int offset, 
	int length
) abstract

abstract CalculateChecksum : 
        buffer : byte[] * 
        offset : int * 
        length : int -> uint16

function CalculateChecksum(buffer, offset, length);

View Source

Parameters

buffer Byte: Buffer image over which to calculate checksum.
offset Int32: Start index into buffer to calculate checksum.
length Int32: Length of data within buffer to calculate checksum.

Return Value

UInt16
Checksum over specified portion of buffer.

Remarks

Override with needed checksum calculation for particular protocol.

Example

This example provides a CRC-CCITT checksum:

Copy

using GSF.IO.Checksums;

protected override ushort CalculateChecksum(byte[] buffer, int offset, int length)
{
    // Return calculated CRC-CCITT over given buffer...
    return buffer.CrcCCITTChecksum(offset, length);
}

Reference

ChannelFrameBaseT Class

GSF.PhasorProtocols Namespace