I hate to keep asking for everyone’s help because I know that you guys have more important things to do but I am once again stuck. I am trying to write a logfile to the sd card logging the events of a time update and cannot seem to get more than 2-3 writes to a file named ‘log.txt’. I not only do I not get writes to the sd card but I also don’t get any debug messages past the initial GC messages.
If someone has time please look at my code and point out the mistakes that I have made.
Thanks,
Kevin
using System;
using System.IO;
using System.Text;
using System.Threading;
using Microsoft.SPOT;
using Microsoft.SPOT.IO;
using Microsoft.SPOT.Net;
using Microsoft.SPOT.Hardware;
using GHIElectronics.NETMF.IO;
using GHIElectronics.NETMF.FEZ;
using GHIElectronics.NETMF.Net;
using GHIElectronics.NETMF.System;
using GHIElectronics.NETMF.USBHost;
using GHIElectronics.NETMF.Hardware;
using GHIElectronics.NETMF.Net.Sockets;
using GHIElectronics.NETMF.Net.NetworkInformation;
using Socket = GHIElectronics.NETMF.Net.Sockets.Socket;
public class Hydro
{
static PersistentStorage SDCard ;
static bool timeFlag = false; // Is set to true when time is successfully update from the internet
static DateTime UpdateRTCEvery6Hours = DateTime.Now; //Sets the starting point for the RTC update clock
public static void Main()
{
try
{
byte[] mac = { 0x00, 0x9A, 0xD2, 0xC2, 0xD9, 0x2A }; // Randomly generated MAC from http://www.macvendorlookup.com
WIZnet_W5100.Enable(SPI.SPI_module.SPI1, (Cpu.Pin)FEZ_Pin.Digital.Di10, (Cpu.Pin)FEZ_Pin.Digital.Di9, true); // WIZnet interface with FEZ Connect
Dhcp.EnableDhcp(mac, "HydroController"); //Used to check if there were any problems with the network settings (And at work) //
string DNSInfo = NetworkInterface.DnsServer[0].ToString() + "." + //
NetworkInterface.DnsServer[1].ToString() + "." + //
NetworkInterface.DnsServer[2].ToString() + "." + //
NetworkInterface.DnsServer[3].ToString(); //
string IpInfo = NetworkInterface.IPAddress[0].ToString() + "." + //
NetworkInterface.IPAddress[1].ToString() + "." + //
NetworkInterface.IPAddress[2].ToString() + "." + //
NetworkInterface.IPAddress[3].ToString(); //
string SubnetInfo = NetworkInterface.SubnetMask[0].ToString() + "." + //
NetworkInterface.SubnetMask[1].ToString() + "." + //
NetworkInterface.SubnetMask[2].ToString() + "." + //
NetworkInterface.SubnetMask[3].ToString(); //
string MacInfo = NetworkInterface.PhysicalAddress[0].ToString() + "." + //
NetworkInterface.PhysicalAddress[1].ToString() + "." + //
NetworkInterface.PhysicalAddress[2].ToString() + "." + //
NetworkInterface.PhysicalAddress[3].ToString(); //
string GatewayInfo = NetworkInterface.GatewayAddress[0].ToString() + "." + //
NetworkInterface.GatewayAddress[1].ToString() + "." + //
NetworkInterface.GatewayAddress[2].ToString() + "." + //
NetworkInterface.GatewayAddress[3].ToString(); //
Debug.Print("IP: " + IpInfo.ToString()); //
Debug.Print("Subnet: " + SubnetInfo.ToString()); //
Debug.Print("Gateway: " + GatewayInfo.ToString()); //
Controls SDWriteTest = new Controls();
SDWriteTest.UpdateSD("log.txt", IpInfo + "\r\n" + SubnetInfo);
Thread.Sleep(100);
} //
catch //
{ //
Debug.Print("Connection failed. Verify cable is connected and network is operational."); //
}
UpdateRTCEvery6Hours = DateTime.Now;
while (true)
{
if (!timeFlag)
{
Controls getTime = new Controls();
try
{
timeFlag = getTime.NTPTime("time-a.nist.gov", -300);
Controls sd1 = new Controls();
sd1.UpdateSD("log.txt", "Time set via \"time-a.nist.gov\". New time is: " + DateTime.Now + @ "\r\n" + "timeFlag set to True");
}
catch
{
timeFlag = getTime.NTPTime("time-b.nist.gov", -300);
Controls sd2 = new Controls();
sd2.UpdateSD("log.txt", "Time set via \"time-b.nist.gov\". New time is: " + DateTime.Now.ToString());
}
}
if (UpdateRTCEvery6Hours > UpdateRTCEvery6Hours.AddSeconds(10)) // Changed to seconds for testing
{
Controls reOccurring = new Controls();
Controls sd = new Controls();
reOccurring.NTPTime("time-b.nist.gov", -300);
UpdateRTCEvery6Hours = DateTime.Now;
sd.UpdateSD("log.txt", "Six hour update complete. New time is: " + DateTime.Now.ToString());
Debug.Print("Re-occurring update complete. Time is " + DateTime.Now.ToString());
}
Debug.GC(true);
Debug.EnableGCMessages(true);
Thread.Sleep(Timeout.Infinite);
}
}
public class Controls
{
public bool NTPTime(string TimeServer, int GmtOffset = 0)
{
Socket s = null;
try
{
EndPoint rep = new IPEndPoint(Dns.GetHostEntry(TimeServer).AddressList[0], 123);
s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
byte[] ntpData = new byte[48];
Array.Clear(ntpData, 0, 48);
ntpData[0] = 0x1B; // Set protocol version
s.SendTo(ntpData, rep); // Send Request
if (s.Poll(30 * 1000 * 1000, SelectMode.SelectRead)) // Waiting an answer for 30s, if nothing: timeout
{
s.ReceiveFrom(ntpData, ref rep); // Receive Time
byte offsetTransmitTime = 40;
ulong intpart = 0;
ulong fractpart = 0;
for (int i = 0; i <= 3; i++) intpart = (intpart << 8) | ntpData[offsetTransmitTime + i];
for (int i = 4; i <= 7; i++) fractpart = (fractpart << 8) | ntpData[offsetTransmitTime + i];
ulong milliseconds = (intpart * 1000 + (fractpart * 1000) / 0x100000000L);
s.Close();
TimeSpan timeSpan = TimeSpan.FromTicks((long)milliseconds * TimeSpan.TicksPerMillisecond);
DateTime dateTime = new DateTime(1900, 1, 1);
dateTime += timeSpan;
Utility.SetLocalTime(dateTime.AddMinutes(GmtOffset));
RealTimeClock.SetTime(DateTime.Now);
return true;
}
s.Close();
}
catch
{
try { s.Close(); }
catch { }
}
return false;
}
public bool UpdateSD(string fileName, string dataToFile)
{
SDCard = new PersistentStorage("SD");
SDCard.MountFileSystem();
if (VolumeInfo.GetVolumes()[0].IsFormatted)
try
{
string root = VolumeInfo.GetVolumes()[0].RootDirectory;
string fileToWrite = root + @ "\" + fileName;
FileStream dataWriter = new FileStream(fileToWrite, FileMode.OpenOrCreate, FileAccess.Write);
dataWriter.Seek(0, SeekOrigin.End);
byte[] data = Encoding.UTF8.GetBytes(DateTime.Now.ToString() + ": " + dataToFile);
dataWriter.Write(data, 0, data.Length);
dataWriter.Close();
Debug.Print("Write to SD complete");
}
catch
{
Debug.Print("Write to SD failed");
return false;
}
Thread.Sleep(10);
SDCard.UnmountFileSystem();
SDCard.Dispose();
return true;
}
}
}
!