public byte[] GetHeader()
{
byte[] destinationEndPoint = null;
byte[] profileId = null;
if (m_endPoint == null)
{
destinationEndPoint = DESTINATION_ENDPOINT;
profileId = PROFILE_ID;
}
else
{
destinationEndPoint = new byte[sizeof(byte)];
destinationEndPoint[0] = m_endPoint.Id;
profileId = AdapterHelper.ToXbeeFrame(m_endPoint.CommandProfileId);
}
// set destination (mac address and network address)
byte[] macAddress = null;
byte[] networkAddress = null;
if (null != m_destination)
{
// send to specific device
macAddress = AdapterHelper.ToXbeeFrame(m_destination.MacAddress);
networkAddress = AdapterHelper.ToXbeeFrame(m_destination.NetworkAddress);
}
else
{
// broadcast
macAddress = AdapterHelper.ToXbeeFrame(AdapterHelper.BROADCAST_MAC_ADDRESS);
networkAddress = AdapterHelper.ToXbeeFrame(AdapterHelper.UNKNOWN_NETWORK_ADDRESS);
}
// set cluster ID
byte[] clusterId = AdapterHelper.ToXbeeFrame(m_clusterId);
// create and set header buffer
int offset = 0;
int headerSize = macAddress.Length + networkAddress.Length + SOURCE_ENDPOINT.Length + DESTINATION_ENDPOINT.Length +
clusterId.Length + PROFILE_ID.Length + BROADCAST_RADIUS.Length + TRANSMIT_OPTIONS.Length;
byte[] header = new byte[headerSize];
offset = AdapterHelper.AddByteToBuffer(ref header, ref macAddress, offset);
offset = AdapterHelper.AddByteToBuffer(ref header, ref networkAddress, offset);
offset = AdapterHelper.AddByteToBuffer(ref header, ref SOURCE_ENDPOINT, offset);
offset = AdapterHelper.AddByteToBuffer(ref header, ref destinationEndPoint, offset);
offset = AdapterHelper.AddByteToBuffer(ref header, ref clusterId, offset);
offset = AdapterHelper.AddByteToBuffer(ref header, ref profileId, offset);
offset = AdapterHelper.AddByteToBuffer(ref header, ref BROADCAST_RADIUS, offset);
offset = AdapterHelper.AddByteToBuffer(ref header, ref TRANSMIT_OPTIONS, offset);
return(header);
}
private int SetCommandHeader(ref byte[] buffer, int initialOffset, int commandSize, ref byte[] xbeeCommand, ref byte[] commandId)
{
int offset = initialOffset;
// add headers (frame and at command)
offset = AdapterHelper.AddByteToBuffer(ref buffer, ref COMMAND_PREFIX, offset);
UInt16 tempWord = Convert.ToUInt16(commandSize);
byte[] tempBytes = AdapterHelper.ToXbeeFrame(tempWord);
offset = AdapterHelper.AddByteToBuffer(ref buffer, ref tempBytes, offset);
offset = AdapterHelper.AddByteToBuffer(ref buffer, ref xbeeCommand, offset);
offset = AdapterHelper.AddByteToBuffer(ref buffer, ref commandId, offset);
return(offset);
}