HuaRui/SerialPortBase.cs


using System;
using System.ComponentModel;
using System.IO.Ports;
using System.Threading.Tasks;
using System.Xml.Linq;

namespace YSDetection
{
    public class SerialPortBase
    {
        private object _lock = new object();

        /// <summary>
        /// 串口对象
        /// </summary>
        private SerialPort _serialPort = null;


        public event Action<byte[]> OnDataReceived;


        public  void Init(string port)
        {
            if (_serialPort == null)
            {
                lock (_lock)
                {
                    if (_serialPort == null)
                    {
                        _serialPort = new SerialPort(port);
                        _serialPort.BaudRate = 115200;
                        _serialPort.Parity = Parity.None;
                        _serialPort.DataBits =8;
                        _serialPort.StopBits = StopBits.One;
                        _serialPort.DataReceived -= SerialPort_DataReceived;
                        _serialPort.DataReceived += SerialPort_DataReceived;
                    }
                }
            }

        }
        
        private void SerialPort_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
            int count = _serialPort.BytesToRead;
            byte[] buffer = new byte[count];

            var rCount = Read(buffer, 0, count);

            if (count != rCount)
            {
                return;
            }

            //Task.Run(async () =>
            //{
            //    if (BytesCompare(buffer, _triggerdData))
            //    {
            //        if (IConfig.TriggerDelay > 0)
            //        {
            //            await Task.Delay(IConfig.TriggerDelay);
            //        }
            //       // OnTriggered?.Invoke();
            //    }
            //    else if (BytesCompare(buffer, _disconnectedData))
            //    {
            //       // OnDisconnected?.Invoke();
            //    }
            //});


            Task.Run(() =>
            {
                //if(count==9)
                OnDataReceived?.Invoke(buffer);
            });


        }
        private bool BytesCompare(byte[] b1, byte[] b2)
        {
            if (b1 == null || b2 == null) return false;
            if (b1.Length != b2.Length) return false;
            for (int i = 0; i < b1.Length; ++i)
            {
                if (b1[i] != b2[i]) return false;
            }
            return true;
        }

        public void Start()
        {
            try
            {
                _serialPort.Open();
              //  LogAsync(DateTime.Now, LogLevel.Assist, $"{Name}[{_serialPort.PortName}]已打开");
            }
            catch (Exception ex)
            {
                throw new Exception();
            }
        }

        public void Stop()
        {
            try
            {
                _serialPort.Close();
               
            }
            catch (Exception ex)
            {
                throw new Exception();
            }
        }


        public int Read(byte[] buffer, int offset, int count)
        {
            return _serialPort.Read(buffer, offset, count);
        }

        public void Writebty(byte[] buffer, int offset, int count)
        {
             _serialPort.Write(buffer, offset, count);
        }
        public void WriteStr(string buffer)
        {
            _serialPort.Write(buffer);
        }
        //protected void Read()
        //{
        //    SerialPortHelper.ReadExisting(_serialPort);
        //}

    }







}