WinCE SerialPort

直接上代码

privatevoid Form1_Load(object sender, EventArgs e)
 2         {
 3             serialPort1.PortName ="COM3";
 4             serialPort1.BaudRate =9600;
 5             serialPort1.DataBits =8;
 6             serialPort1.Open();
 7 if (serialPort1.IsOpen)
 8             {
 9            serialPort1.PortName+"端口已打开"
10             }
11 else
12             {
13         serialPort1.PortName+"端口打开 失败"
14             }
15         }

privatevoid serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            System.Threading.Thread.Sleep(120);
            int bytes = serialPort1.BytesToRead;
            byte[] buffer =newbyte[bytes];
            if (bytes ==0)
            { return; }
            serialPort1.Read(buffer, 0, bytes);
            RfidLoad(ByteToStr(buffer));
        }

publicvoid RfidLoad(string msg)
        {
            this.Invoke(new EventHandler(delegate
             {
                 try
                 {
                     if (!string.IsNullOrEmpty(msg))
                     {
                         if (!listBox1.Items.Contains(msg))
                         {
                             listBox1.Items.Add(msg);
                         }
                     }
                 }
                 catch (Exception e)
                 {
                     MessageBox.Show(e.ToString());
                 }
             }));
        }

publicstring ByteToStr(byte[] value)
        {
            string item =string.Empty;
            if (((value.Length >8) && (value.Length >= ((((value[4] >>3) +1) *2) +4))) && ((((value[2] &0x7f) ==0x10) || ((value[2] &0x7f) ==0x11)) && (value[3] !=1)))
            {
                int num = ((value[4] >>3) +1) *2;
                bool flag =false;
                for (int i =0; i < num; i++)
                {
                    if (!flag)
                    {
                        if (value[4+ i] ==0xff)
                        {
                            flag =true;
                        }
                        else
                        {
                            item += Convert.ToString((int)(value[4+ i] >>4), 0x10) + Convert.ToString((int)(value[4+ i] &15), 0x10);
                        }
                    }
                    else
                    {
                        flag =false;
                        item += Convert.ToString((int)(value[4+ i] >>4), 0x10) + Convert.ToString((int)(value[4+ i] &15), 0x10);
                    }
                }
            }
            if (!string.IsNullOrEmpty(item))
            {
                return item.ToUpper().Substring(4, 24);
            }
            return item;
        }