public override void SetData(byte[] data, int startIndex, int len)
{
CheckData(data, startIndex, len);
Ctrl.SetData(data, startIndex, 1);
int targetAddrLen = Ctrl.TargetAddrMode == EmAddrLen.Two ? 2 : 6;
int sourceAddrLen = Ctrl.SourceAddrMode == EmAddrLen.Two ? 2 : 6;
TargetAddr.AddrMode = Ctrl.TargetAddrMode;
TargetAddr.SetData(data, startIndex + 1, targetAddrLen);
SourceAddr.AddrMode = Ctrl.SourceAddrMode;
SourceAddr.SetData(data, startIndex + 1 + targetAddrLen, sourceAddrLen);
byte seqAndRadius = data[startIndex + 1 + targetAddrLen + sourceAddrLen];
Seq.Value = (byte)(seqAndRadius >> 4);
Radius.Value = (byte)(seqAndRadius & 0x0F);
int curPos = startIndex + 2 + targetAddrLen + sourceAddrLen;
if (Ctrl.RoutingInstruction == 1)
{
byte[] routeInfoValue = new byte[3];
Array.Copy(data, curPos, routeInfoValue, 0, 3);
//这里不能用下面的方式赋值 因为无法更新中继列表
//Array.Copy(data, curPos, RouteInfo.Value, 0, 3);
RouteInfo.Value = routeInfoValue;
curPos += 3;
if (RouteInfo.RouteNodeNum > 6)
{
throw new Exception("路由信息域 中继节点数不能超过6");
}
if (RouteInfo.RouteIndex > 6)
{
throw new Exception("路由信息域 中继索引不能超过6");
}
for (int i = 0; i < RouteInfo.RouteNodeNum; i++)
{
NetAddr na = RouteInfo.RouteAddrList[i];
if (na.AddrMode == EmAddrLen.Two)
{
na.SetData(data, curPos, 2);
curPos += 2;
}
else
{
na.SetData(data, curPos, 6);
curPos += 6;
}
}
}
if (Ctrl.FrameType == EmNetFrameType.Command)
{
Du = new NetCmd();
Du.SetData(data, curPos, startIndex + len - curPos);
}
else if (Ctrl.FrameType == EmNetFrameType.Data)
{
Du = new ApsFrame();
Du.SetData(data, curPos, startIndex + len - curPos);
}
}
public override void SetData(byte[] data, int startIndex, int len)
{
CheckData(data, startIndex, len);
int curPos = startIndex;
Ctrl.SetData(data, curPos, 2);
curPos += 2;
if (Ctrl.HasSeq)
{
Seq.SetData(data, curPos, 1);
curPos += 1;
}
if (Ctrl.HasPanID)
{
_panID.SetData(data, curPos, 2);
curPos += 2;
}
int targetAddrLen = (Ctrl.TargetAddrMode == EmAddrLen.Two ? 2 : 6);
TargetAddr.SetData(data, curPos, targetAddrLen);
curPos += targetAddrLen;
int sourceAddrLen = (Ctrl.SourceAddrMode == EmAddrLen.Two ? 2 : 6);
SourceAddr.SetData(data, curPos, sourceAddrLen);
curPos += sourceAddrLen;
if (Ctrl.HasExtension)
{
int extLen = data[curPos];
Extension = new MacExtension();
Extension.SetData(data, curPos, extLen + 1);
curPos += extLen + 1;
}
int duLen = startIndex + len - curPos;
switch (Ctrl.FrameType)
{
case EmMacFrameType.Beacon:
Du = new MacBeacon();
Du.SetData(data, curPos, duLen);
break;
case EmMacFrameType.Data:
Du = new NetFrame();
Du.SetData(data, curPos, duLen);
break;
case EmMacFrameType.Ack:
Du = null;
break;
case EmMacFrameType.Cmd:
Du = new MacCmd();
Du.SetData(data, curPos, duLen);
break;
}
}
