Library problem: GHIElectronics.NETMF.W5100.Http

NETMF & Gadgeteer
1

Hi,
using GHIElectronics.NETMF.W5100.Http library but i have no mamed problem. used code and debug output is bellow. code is do nothing and waiting infinite when context.Response.Headers.Count.ToString(); called. Whats wrong?


namespace OMR.MyHttpServer
{
    using GHIElectronics.NETMF.Net;
    using GHIElectronics.NETMF.Net.NetworkInformation;
    using Microsoft.SPOT;

    public class Program
    {
        public static void Main()
        {
            Debug.Print("Network interface initializing...");
            InitializeIp();

            StartHttpServer(80);
        }

        private static void StartHttpServer(int port)
        {
            var hl = new HttpListener("http", port);
            hl.Start();

            HttpListenerContext context = null;

            while (true)
            {
                context = hl.GetContext();
                Debug.Print("on request");

                try
                {
                    string str = context.Response.Headers.Count.ToString();

                    Debug.Print(str);
                }
                catch (System.Exception ex)
                {
                    Debug.Print("Exception: " + ex.ToString());
                }
                finally
                {
                    Debug.Print("finally");
                }
            }
        }

        private static void InitializeIp()
        {
            byte[] ip = { 192, 168, 2, 107 };
            byte[] subnet = { 255, 255, 255, 0 };
            byte[] gateway = { 192, 168, 2, 1 };
            byte[] mac = { 0x00, 0x26, 0x1C, 0x7B, 0x28, 0xE8 };

            NetworkInterface.EnableStaticIP(ip, subnet, gateway, mac);
            NetworkInterface.EnableStaticDns(new byte[] { 192, 168, 0, 1 });
        }

    }
}



...
'Microsoft.SPOT.Debugger.CorDebug.dll' (Managed): Loaded 'C:\Program Files\GHI Electronics\GHI NETMF v4.1 SDK\Assemblies\le\FEZPanda_II_GHIElectronics.NETMF.FEZ.dll'
The thread '<No Name>' (0x2) has exited with code 0 (0x0).
Network interface initializing...
on request
2

Don’t reinvent the wheel, grab the HTTP Server from http://code.tinyclr.com/project/426/fez-connect-web-server/.

The problem to me looks like you never call WIZnet_W5100.Enable which I think is the problem. You need to tell the W5100 code how to talk to the device !

3

http://www.ghielectronics.com/downloads/FEZ/FEZ_Internet_of_Things_Book.pdf

4

@ omerfarukz

Do you see the output of any of these print statements?


Debug.Print("on request");
Debug.Print(str);
Debug.Print("finally");
5

I saw On Request shown in the above post, but neither of the others

6

Oh, yes… now I see it :-[

One more question:
Why are you checking the count of “response” headers before you send anything back to the client? It would make more sense to check “request” headers.

7

Yeah, this code is okay. Thanks. i forgot to enable wiznet.


using GHIElectronics.NETMF.FEZ;
using GHIElectronics.NETMF.Net;
using GHIElectronics.NETMF.Net.NetworkInformation;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;

namespace MFConsoleApplication2
{
    public class Program
    {
        public static void Main()
        {
            InitNetworkInterface();

            var hl = new HttpListener("http", 8080);
            hl.Start();

            while (true)
            {
                var c = hl.GetContext();

                Debug.Print(c.Request.Headers.Count.ToString());
            }
        }

        private static void InitNetworkInterface()
        {
            byte[] ip = { 192, 168, 2, 106 };
            byte[] subnet = { 255, 255, 255, 0 };
            byte[] gateway = { 192, 168, 2, 1 };
            byte[] mac = { 0x00, 0x26, 0x1C, 0x7B, 0x29, 0xE8 };

            WIZnet_W5100.Enable(SPI.SPI_module.SPI1, (Cpu.Pin)FEZ_Pin.Digital.Di10, (Cpu.Pin)FEZ_Pin.Digital.Di7, true);

            NetworkInterface.EnableStaticIP(ip, subnet, gateway, mac);
            NetworkInterface.EnableStaticDns(new byte[] { 192, 168, 2, 1 });
        }
    }
}