串口通讯

请问串口通讯的方法有哪些？哪种效果会更好？ --------------------编程问答-------------------- 用mscomm 在232口，容易吧 --------------------编程问答-------------------- vs自带的serialportbar --------------------编程问答-------------------- C#中有mscomm.ocx控件吗？
--------------------编程问答-------------------- 先对seriport控件进行初始化:
            serialPort1.Close();
            serialPort1 .PortName ="COM1";
            serialPort1.BaudRate = 4800;
            serialPort1.Parity = Parity.Odd;
            serialPort1.RtsEnable = true;
            serialPort1.DataBits = 8;
            serialPort1.ReceivedBytesThreshold = 1;
            serialPort1.StopBits = StopBits.One;
            serialPort1.Open();

再对sriport的DataReceived进行读取数据格式进行设置:
        private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
            intBytes = serialPort1.BytesToRead;
            byte[] bytes = new byte[intBytes];
            serialPort1.Read(bytes, 0, intBytes);
            StringBuilder sb = new StringBuilder(bytes.Length * 3);
            foreach (byte b in bytes )
            {
                sb.Append(Convert.ToString(b, 16).PadLeft(2, '0').PadRight(3, ' '));
            }
            str = sb.ToString().ToUpper()  ;
            dspy_count += 1;
            if (dspy_count ==15)
            {
                dspy_count = 0;
                this.Invoke(new EventHandler(delegate { ClearText(); }));
            }
            this.Invoke(new EventHandler(delegate { SetText(); }));
        }

最后还有两个函数用来清楚文本内容和写入文本内容:
        private void SetText()
        {
            seriport.Text += str;
        }
        private void ClearText()
        {
            seriport.Text = "";
        }

是serialport,不好意思,打错了. --------------------编程问答-------------------- 没有数据的发送吗？ --------------------编程问答-------------------- 在工具栏,或添加引用using System.IO.Ports;

主要方法,属性参考:
http://topic.csdn.net/u/20080613/21/99cb7a0f-b535-4e5d-b2fb-1eb771e2f61c.html --------------------编程问答-------------------- serialPort1.PortName = "COM1";//串口名
            serialPort1.BaudRate = 4800;//波特率
            serialPort1.Parity = Parity.Odd;//校验方式
            serialPort1.RtsEnable = true;
            serialPort1.DataBits = 8;//数据位
            serialPort1.StopBits = StopBits.One;//停止位
            serialPort1.ReceivedBytesThreshold = 1;//接收数据时缓冲区的字节数

串口打开
serialPort1.Open();

发送数据:
serialPort1.Write(string text);
serialPort1.Write(byte[] buffer,int offset,int count);
serialPort1.Write(char[] buffer,int offset,int count);
serialPort1.WriteLine(string text);

接收数据:在DataReceived 事件中:
private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
    while (serialPort1.BytesToRead != 0)
    {
        int serialPort1.ReadByte();
        int serialPort1.Read(byte[] buffer,int offset,int count);
        int serialPort1.Read(char[] buffer,int offset,int count);
        int serialPort1.ReadChar();
        string serialPort1.ReadExisting();
        string serialPort1.ReadLine();
        string serialPort1.ReadTo(string value);//一直读到指定value字符串;
        .........
    }
}
--------------------编程问答-------------------- 已经很详细了 --------------------编程问答-------------------- 够用了 --------------------编程问答-------------------- 恩，刚接触.看看.. ... . --------------------编程问答-------------------- 4楼写的非常好，顶一下！哈哈

补充：.NET技术 ,  C#