[游戏开发]C# 串口操作类SerialHelper

using System;
using System.Collections.Generic;
using System.Text;
using System.IO.Ports;
using System.IO;
using Haier_Common;
using System.Linq;

namespace Control
{
    public static class SerialHelper
    {
        public static SerialPort _serialPort = new SerialPort();


        public static void initialize()//初始化
        {
            //关闭串口时回抛异常
            try
            {
                string[] ports = SerialPort.GetPortNames();//获取当前计算机的串行端口名的数组。
                _serialPort.PortName = Global.PortName;//ports[0].ToString();//串口号//
                _serialPort.BaudRate = Convert.ToInt32(115200);//波特率
                _serialPort.DataBits = 8;//数据位
                _serialPort.StopBits = StopBits.One;//停止位
                _serialPort.Parity = Parity.None;//校验位
                _serialPort.WriteBufferSize = 2048;
                pubfunction.WriteLogWorkDate("小屏幕", Global.PortName);

            }
            catch (Exception ex)
            {
                pubfunction.WriteLogWorkDate("串口报错", ex.Message);
            }
        }


        public static void SerialOpen()//串口开
        {
            try
            {
                _serialPort.Open();
                _serialPort.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);//添加数据接收事件
            }
            catch (Exception ex)
            {
                pubfunction.WriteLogWorkDate("串口报错", ex.Message);
            }
        }

        public static void SerialClose()//串口关
        {
            try
            {
                _serialPort.DataReceived -= DataReceivedHandler;
                _serialPort.Close();
            }
            catch (Exception ex)
            {
                pubfunction.WriteLogWorkDate("串口报错", ex.Message);
            }
        }

        public static void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)//读取下位机的数据
        {
            try
            {
                int len = _serialPort.BytesToRead;
                byte[] buffer = new byte[len];
                _serialPort.Read(buffer, 0, len);
                string strData = BitConverter.ToString(buffer, 0, len);
                pubfunction.WriteLogWorkDate("小屏幕", "接收：" + strData);

            }
            catch (Exception ex)
            {
                pubfunction.WriteLogWorkDate("串口报错", ex.Message);
                Global.ShowMessge(ex.Message);
            }

        }

        public static void SerialSend(string SendData)//发送按钮
        {
            try
            {
                //string a = SendData.Trim();
                SendData = SendData.Replace(" ", "");
                byte[] Data = new byte[SendData.Length / 2];
                for (int i = 0; i < SendData.Length / 2; i++)
                {
                    //每次取两位字符组成一个16进制
                    Data[i] = Convert.ToByte(SendData.Substring(i * 2, 2), 16);
                }
                _serialPort.Write(Data, 0, Data.Length);
            }
            catch (Exception ex)
            {
                pubfunction.WriteLogWorkDate("串口报错", ex.Message);

                //Global.ShowMessge(ex.Message);
            }

        }
        public static void SerialStopSend()//停止接收数据
        {
            try
            {
                byte[] data = { 0x99 };
                _serialPort.DataReceived -= DataReceivedHandler;
                _serialPort.Write(data, 0, data.Length);
            }
            catch (Exception ex)
            {
                pubfunction.WriteLogWorkDate("串口报错", ex.Message);
                Global.ShowMessge(ex.Message);
            }

        }
        private static void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            _serialPort.Close();
        }
    }

}