【代码】使用c#实现串口通信的基础模板

一、分享代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;using System.IO.Ports;
using System.Threading;//串口参数结构体
struct COMPORT_ATTRIBUTE
{public int bandrate;public int data_bit;public Parity parity_check_bit;public StopBits stop_bit;public string comport_number;
};namespace uarttest2
{public partial class Form1 : Form{// 串口参数private COMPORT_ATTRIBUTE uart_port;//实例化串口类public System.IO.Ports.SerialPort _serialPort = new System.IO.Ports.SerialPort();//============================== 定义线程 ===========================================Thread listenThread;public bool rx_thread_stop_flag = false;//线程停止标志public bool rx_thread_start_flag = false;//线程停止标志//初始化端口public void InitializePorts(){string[] port_names = SerialPort.GetPortNames();string last_name = "";comport.Items.Clear();//清除数据if (port_names == null){MessageBox.Show("本机没有串口！", "Error");return;}foreach (string s in System.IO.Ports.SerialPort.GetPortNames()){//获取有多少个COM口就添加进COMBOX项目列表  comport.Items.Add(s);last_name = s;//保存最新的一个}comport.Text = last_name;//显示最新的一个串口uart_port.comport_number = last_name;//赋值变量}public void InitializeSerialSet(){// 初始化扫描串口InitializePorts();// 初始化波特率uart_port.bandrate = 115200;// 初始化数据位uart_port.data_bit = 8;// 初始化停止位uart_port.stop_bit = (StopBits)1;// 初始化校验位uart_port.parity_check_bit = 0;//Parity.Noneif (uart_port.parity_check_bit == (Parity)1)//  Parity.Odd{}else if (uart_port.parity_check_bit == (Parity)2) //Parity.Even{}else{}}public void Open_uart(){ if (_serialPort.IsOpen){_serialPort.Close();}_serialPort.PortName = comport.Text;            //串口名称_serialPort.BaudRate = uart_port.bandrate;      //波特率_serialPort.DataBits = uart_port.data_bit;      //数据位_serialPort.Parity = uart_port.parity_check_bit;//校验位_serialPort.StopBits = uart_port.stop_bit;      //停止位}public void Close_uart(){try {}catch (Exception ex){MessageBox.Show(ex.Message);}}/// <summary>/// 开关接收线程/// </summary>private void RxThreadOnOff(bool on_off){if (on_off){listenThread = new Thread(() => ReceiveData());//开启一个线程来不断的接收数据listenThread.IsBackground = true;listenThread.Start();}else{rx_thread_stop_flag = true;while (listenThread.IsAlive)//等待停止{ }rx_thread_stop_flag = false;}}/// <summary>/// 接收数据/// </summary>public void ReceiveData(){//接收线程while (_serialPort.IsOpen && !rx_thread_stop_flag)//线程循环{//......}}public Form1(){InitializeComponent();InitializeSerialSet();}private void scanuart_Click(object sender, EventArgs e){InitializePorts();}private void openuart_Click(object sender, EventArgs e){Open_uart();}}
}