C# Delphi ComPort 通信

Question

我使用 Visual Studio 2008 (C#) 或 Delphi CodeGear 编写了与串行 com 端口设备通信的程序。设备以十六进制格式向我发送数据，我读取了它。真实示例 - 40 32 00 D2 01 A6 B2第一个字节“40”是设备号。第二个字节“32”是按下设备的哪个按钮。等等……

我的问题是如何分别查看字节。当我收到 40 32 00 D2 01 A6 B2我不得不说这是设备“1”(例如)，它被按下按钮“2”(例如)。如果有人知道该怎么做，我将非常感谢您的帮助。谢谢

Answer 1

我找到了这段代码并使用了它:

void comPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            //determine the mode the user selected (binary/string)
            switch (CurrentTransmissionType)
            {
                //user chose string
                case TransmissionType.Text:
                    //read data waiting in the buffer
                    string msg = comPort.ReadExisting();
                    //display the data to the user
                    DisplayData(MessageType.Incoming, msg + "\n");
                    break;
                //user chose binary
                case TransmissionType.Hex:
                    //retrieve number of bytes in the buffer
                    int bytes = comPort.BytesToRead;
                    //create a byte array to hold the awaiting data
                    byte[] comBuffer = new byte[bytes];
                    //read the data and store it
                    comPort.Read(comBuffer, 0, bytes);
                    //display the data to the user
                    DisplayData(MessageType.Incoming, ByteToHex(comBuffer) + "\n");
                    break;
                default:
                    //read data waiting in the buffer
                    string str = comPort.ReadExisting();
                    //display the data to the user
                    DisplayData(MessageType.Incoming, str + "\n");
                    break;
            }
        }

我收到这个“40 32 00 D2 01 A6 B2”(十六进制格式)我想要第一个字节表示这个设备是数字 1，第二个字节表示按下按钮 N 等......