c#-串口通信-同频-简单实验

最新推荐文章于 2024-03-11 13:56:32 发布

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本文展示了如何使用C#进行串口通信，包括设置波特率、数据位、校验位和停止位，并提供了发送与接收数据的代码片段，通过COM2和COM1端口实现了数据的同频通信。

1.概要：串口通信同频

serialPort2.BaudRate = 9600;
serialPort2.DataBits = 8;
serialPort2.Parity = Parity.None;
serialPort2.StopBits = StopBits.One;
serialPort2.Open();

serialPort1.BaudRate = 9600;
serialPort1.DataBits = 8;
serialPort1.Parity = Parity.None;
serialPort1.StopBits = StopBits.One;
serialPort1.Open();

2 代码

SerialPort serialPort2 = new SerialPort("COM2");
        public Form1()
        {
            InitializeComponent();

            serialPort2.BaudRate = 9600;
            serialPort2.DataBits = 8;
            serialPort2.Parity = Parity.None;
            serialPort2.StopBits = StopBits.One;
            serialPort2.Open();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            serialPort2.Write(textBox2.Text);
            textBox1.AppendText(textBox2.Text+"\r\n");
        }

读取端

SerialPort serialPort1 = new SerialPort("COM1");
        public Form1()
        {
            InitializeComponent();
            serialPort1.BaudRate = 9600;
            serialPort1.DataBits = 8;
            serialPort1.Parity = Parity.None;
            serialPort1.StopBits = StopBits.One;
            serialPort1.Open();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            byte[] bf = new byte[1000];
            serialPort1.Read(bf, 0, 1000);
            string str2 = Encoding.ASCII.GetString(bf);
            textBox1.AppendText(str2 + "\r\n");
        }

运行结果