private byte[] GetFullPackage(byte[] body, UpMessageID messageName, out ushort headerOrderID)
{
if (body == null)
{
body = new byte[0];
}
TransferMeanning(ref body);
var header = GetHeader(messageName, body, out headerOrderID);
TransferMeanning(ref header);
byte[] package = new byte[3 + body.Length + header.Length];
byte checkCode = 0x00;//If checkcode = 7e?
foreach (var dataItem in header)
{
checkCode ^= dataItem;
}
foreach (var dataItem in body)
{
checkCode ^= dataItem;
}
package[0] = identifierBit;
package[package.Length - 1] = identifierBit;
package[package.Length - 2] = checkCode;
Array.Copy(header, 0, package, 1, header.Length);
if (body.Length > 0)
{
Array.Copy(body, 0, package, 1 + header.Length, body.Length);
}
return(package);
}
/// <summary>
/// ---------------------------------------------------------------------------------
/// -- Message Header --
/// ---------------------------------------------------------------------------------
/// -- MessageID | Message Property | SimNum | Order ID | Package Top --
/// -- 0000 | 0000 | 0000 0000 0000 | 0000 | --
/// ---------------------------------------------------------------------------------
/// ---------------------------------------------------------------------------------
/// </summary>
/// <param name="messageName"></param>
/// <param name="realBody">assume no subpackage</param>
/// <returns></returns>
private byte[] GetHeader(UpMessageID messageName, byte[] realBody, out ushort headerOrderID)
{
var messageId = encoder.Encode((ushort)messageName);
var messageProperty = encoder.Encode((ushort)realBody.Length);
var simnumData = encoder.EncodeBCD(simnum, 12);
headerOrderID = orderID;
var orderIDData = encoder.Encode(orderID++);
IList <byte[]> lst = new List <byte[]>();
lst.Add(messageId);
lst.Add(messageProperty);
lst.Add(simnumData);
lst.Add(orderIDData);
return(GetFullData(lst));
}
