串口通信问题

本文介绍了串口通信问题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

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



namespace PortDataReceived
{
    class Program
    {
        static void Main(string[] args)
        {
            SerialPort mySerialPort = new SerialPort("COM1");
            if (mySerialPort.IsOpen == true) mySerialPort.Close();
            mySerialPort.BaudRate = 2400;
            mySerialPort.Parity = Parity.None;
            mySerialPort.StopBits = StopBits.One;
            mySerialPort.DataBits = 8;
            mySerialPort.Handshake = Handshake.None;
            mySerialPort.Open();
            Console.WriteLine("Press any key to continue...");
            Console.WriteLine();
            mySerialPort.ReadTimeout = 500;
            string indata = mySerialPort.ReadExisting();
            if (string.IsNullOrEmpty(indata))
            {
                FileStream fs = new FileStream(@"c:\arjun.txt",FileMode.Append,FileAccess.Write);
                try
                {

                    StreamWriter sw = new StreamWriter(fs);
                    sw.WriteLine("0");
                    sw.Close();
                }
                finally
                {
                    fs.Close();
                }

            }
            else
            {
                StringBuilder builder = new StringBuilder();
                for (int i = 0; i < indata.Length; i += 8)
                {

                    string section = indata.Substring(i, 8);

                    int ascii = 0;
                    try
                    {
                        ascii = Convert.ToInt32(section, 2);
                    }
                    catch
                    {
                        Console.WriteLine("Current Weight : " + section.ToString());
                        FileStream fs = new FileStream(@"c:\arjun.txt", FileMode.Append, FileAccess.Write);
                        try
                        {
                            StreamWriter sw = new StreamWriter(fs);

                            foreach (char c in section)
                            {
                                if (Char.IsLetterOrDigit(c))
                                {
                                    builder.Append(c);
                                }
                            }

                            sw.WriteLine(builder.ToString());
                            sw.Close();
                            break;
                        }
                        finally
                        {
                            fs.Close();

                        }

                    }

                }
            }
           // Console.WriteLine(builder.ToString());
            Console.WriteLine(indata);
            Console.WriteLine("Data Received:");
            Console.Write(indata);
            Console.ReadKey();
            mySerialPort.Close();
        }
    }
}

你好以上所有以上是我的代码在这个代码中我从com端口读取数据但问题是我收到6到7零比从comport收到的实际数据我不是在什么是我的代码中的问题请让我知道我非常感谢所有人。我想要优先解决方案pls

hello all the above is my code in this code i am read data from com port but problem is i was received 6 to 7 zero than received actual data from comport i was not under what was problem in my code pls let me know i was very thank full to all.i want solution on priority pls

问题

串口通信问题

问题描述

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