public static CP1616_NoAddr_Packet CP1616_NoAddr_ComProc(ref SerialPort serialPort, byte com, byte[] data, int retry)
{
CP1616_NoAddr_Packet ret = new CP1616_NoAddr_Packet(com);
byte[] tx;
tx = CP1616_NoAddr_Packet.MakeCP1616_NoAddr_Packet(com, data);
while (retry != 0)
{
serialPort.Write(tx, 0, tx.Length);
while (true)
{
try
{
if (ret.DataPacketed((byte)serialPort.ReadByte()))
{
return(ret);
}
}
catch// (Exception ex)
{
//Debug.WriteLine("血糖通信失败" + ex.Message);
break;
}
}
retry--;
}
return(null);
}
public static object SaveDataProcessCallbackProc(byte[] tempbuffer, ref byte[] buffer, ref int dataOffset, int length)
{
//判断读取的字节数+缓冲区已有字节数是否超过缓冲区总大小
if (length + dataOffset > buffer.Length)
{
// if (dataOffset >= CP1616_NoAddr_PacketHead.HEAD_SIZE)//如果缓冲区数据满足一个包头数据大小,则可以计算出本次接收的包需要的缓冲区大小,从而实现一次调整大小
// {
// int PacketLen = BytesOP.MakeShort(buffer[5], buffer[6]);
// Array.Resize<Byte>(ref buffer, CP1616_NoAddr_PacketHead.HEAD_SIZE + PacketLen+2);
// }
// else //不满足一个完整的网络封包的大小
// {
Array.Resize <Byte>(ref buffer, length + dataOffset);//buffer.Length + BUFFER_SIZE * 2);
// }
}
//将新读取的数据拷贝到缓冲区
Array.Copy(tempbuffer, 0, buffer, dataOffset, length);
//修改"数据实际长度"
dataOffset += length;
if (dataOffset > CP1616_NoAddr_PacketHead.HEAD_SIZE)//已经有头数据了
{
int PacketLen = BytesOP.MakeShort(buffer[3], buffer[4]);
if (dataOffset < (CP1616_NoAddr_PacketHead.HEAD_SIZE + PacketLen + 2))
{
return(null);
}
}
//获得了完整的数据包
CP1616_NoAddr_Packet packet = new CP1616_NoAddr_Packet();
int index = 0;
for (index = 0; index < dataOffset; index++)
{
if (packet.DataPacketed(buffer[index]))
{
Array.Copy(buffer, CP1616_NoAddr_PacketHead.HEAD_SIZE + packet.Header.Len + 2, buffer, 0, dataOffset - (CP1616_NoAddr_PacketHead.HEAD_SIZE + packet.Header.Len + 2));
dataOffset -= (CP1616_NoAddr_PacketHead.HEAD_SIZE + packet.Header.Len + 2);//缓冲区实际数据长度减去一个完整封包长度
return(packet);
}
}
dataOffset = 0;
return(null);
// TcpModbusPacket packet = GetPacket(buffer);
// Array.Copy(buffer, CP1616_NoAddr_PacketHead.HEAD_SIZE + packet.Header.Len+2, buffer, 0, dataOffset - (CP1616_NoAddr_PacketHead.HEAD_SIZE + packet.Header.Len+2));
// dataOffset -= (CP1616_NoAddr_PacketHead.HEAD_SIZE + packet.Header.Len+2);//缓冲区实际数据长度减去一个完整封包长度
// return packet;
}