c#中serialport串口发送数据的问题

版主好！谢谢啦，我最开始没有理解清楚，现在已经自己解决了，我是用的C#，需要循环发送。
                            do
                            {
                                Thread.Sleep(200);
                                serialPort1.Write(data, index, count);
                                index += 256;
                                if (index == 1536)
                                    count = 71;
                            } while (index < 1792);  //1792是我要发送数据的最大字节数