C# Serial Port

Source for a dumpserial command:

using System;
using System.IO.Ports;

public class MainClass{
  public static void Main(string[] args){
    SerialPort sp = new SerialPort(args[0], 9600);
    sp.Open();
    int i = 0;
    string str="";
    while(true){
      if(sp.BytesToRead > 0){
        byte b = (byte)sp.ReadByte();
        Console.Write("{0:X2} ", b);
        if(b > 0x20)
          str += (char) b;
        else
          str += ".";
        if(i == 0x0F){
          Console.WriteLine("  " + str);
          str = "";
          i = 0;
        }
        i++;
      }
    }
  }
}

Save this program as dumpserial.cs then compile:

> csc dumpserial.cs


Source to send file via the serial port to another system using a 16 byte buffer:

using System;
using System.IO;
using System.IO.Ports;
using System.Text;

static class MainClass{
  static void Main(string[] args){
    byte[] buf = new byte[16];
    int n = 0;
    FileStream fs = File.Open(args[0], FileMode.Open);
    BufferedStream bs = new BufferedStream(fs);
    Console.WriteLine("\r\nTransmit file length: {0}\r\n", fs.Length);

    SerialPort port = new SerialPort(args[1]);
    port.BaudRate = 9600;
    port.Parity = Parity.None;
    port.ReadTimeout = 1000;
    port.StopBits = StopBits.One;
    port.Open();

    do{
      n = bs.Read(buf, 0, 16);
      port.Write(buf, 0, n);
    }while(n == 16);
    bs.Close();
  }
}

Save as sendserial.cs then compile:

> csc sendserial.cs

Execute:

> sendserial file1.txt com3