ar429_UDPCommTx.cs

/*******************************************************************************
//
//   File:
//       ar429_UDPCommTX.cs
//
//       Copyright (c) MAX Technologies Inc. 1988-2019, All Rights Reserved.
//             CONFIDENTIAL AND PROPRIETARY INFORMATION WHICH IS THE 
//                         PROPERTY OF MAX TECHNOLOGIES INC. 
//
//    The embedded program "ar429_UDPCommRxEmbedded.c" is required by this program
//    and compiled executable (ar429_UDPCommRxEmbedded.mxf) must have been transferred 
//    (by tftp or any mean) on the FM in the maxfiles folder to be used.
//    The ar429_UDPCommRxEmbedded.mxf must be started first (usually ./ar429_UDPCommRxEmbedded.mxf).
//    It sends a UDP datagram to the FM that is going to be used to start an aperiodic transmission,
//    and waits for the answer (another UDP datagram sent by the FM).
//    The UDP datagram sent by the FM must be the same than the one sent to the FM.
//
//    Hardware Requirements:
//       - MAXT FlexMulti with AR429 ports on it
//
*******************************************************************************/
using System;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace ar429_example
{
    class ar429_UDPCommTX
    {
        static void Main(string[] args)
        {
            const int BUFFER_SIZE = 100;

            string transmitStrg = "L 101 102 103 104 D 1111 2222 3333 4444";
            byte[] txBuffer = Encoding.ASCII.GetBytes(transmitStrg);

            string receivedStrg = "";
            byte[] rxBuffer = new byte[BUFFER_SIZE];

            IPAddress fmIpAddr = IPAddress.Parse("192.168.0.1");
            IPEndPoint endPoint = new IPEndPoint(fmIpAddr, 8888);

            //Creates the socket
            using (Socket txPortSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
            {
                //Sends the datagram to the FM
                try
                {
                    Console.Write("Sending datagram...\n");
                    txPortSocket.SendTo(txBuffer, endPoint);

                    Console.Write("Datagram sent successfully.\n");
                }
                catch (Exception e)
                {
                    Console.Write("Error sending datagram, {0}\n", e);
                }

                //Receives the datagram from the FM
                try
                {
                    Console.Write("Waiting for datagram...\n");
                    txPortSocket.Receive(rxBuffer);

                    receivedStrg = Encoding.ASCII.GetString(rxBuffer);
                    Console.Write("Datagram received from the FM : {0}", receivedStrg);
                }
                catch (Exception e)
                {
                    Console.Write("Error waiting for datagram, {0}\n", e);
                }     
            }

            Console.Write("\n\nPress a key to terminate\n");
            Console.ReadKey();

            return;
        }
    }
}