5 replies to this topic

[engvidal]

My N+2 SD Card is strange. Follow code with remarks

 

public class Program
{
  public static void Main()
  {
  Thread.Sleep(1000);
 
  DirectoryInfo rootDirectory = new DirectoryInfo(@"SD");   
  RecurseFolders(rootDirectory);

  while (true) ;
  }

  private static void RecurseFolders(DirectoryInfo directory)
  {
  bool DE = directory.Exists;    [color=#ff0000;]// >>> A first chance exception of type 'System.IO.IOException' occurred in Microsoft.SPOT.IO.dll[/color]


  if (true)            [color=#ff0000;]// >>> to force this block, because DE returns false, but...[/color]
  {
  Debug.Print(directory.FullName);    [color=#ff0000;]// >>> ... this line returns  SD[/color]
  Thread.Sleep(10);

  foreach (FileInfo file in directory.GetFiles()) [color=#ff0000;]// >>> A first chance exception of type 'System.IO.IOException' occurred in Microsoft.SPOT.IO.dll
               // >>> A first chance exception of type 'System.IO.IOException' occurred in System.IO.dll
               // >>> An unhandled exception of type 'System.IO.IOException' occurred in System.IO.dll[/color]

  {
  Debug.Print(file.FullName);      // >>> the debugger stops before this line
  }

  foreach (DirectoryInfo subDirectory in directory.GetDirectories())
  {
  RecurseFolders(subDirectory);
  }
  }
  else
  {
  Debug.Print("No such Directory !");
  }
  }
  }
 

[dtoth]

It works fine here 

[liqdfire]

What size is it?

Is it form matted FAT32?

[dtoth]

yes, it is formatted to FAT32. Size: 2GB.

[upswing]

I have the same problem with two different boards and different sd cards.  Anyone got a solution?

[upswing]

I get an exception when trying to write read the sd card

 

Exception was thrown: System.NotSupportedException

 

Stack Trace

Microsoft.SPOT.IO.NativeIO::GetAttributes System.IO.FileStream::.ctor System.IO.FileStream::.ctor System.IO.StreamWriter::.ctor System.IO.StreamWriter::.ctor NetduinoApplication1.Program::Main

 

Code is

try

{

using (StreamWriter SW = new StreamWriter("SDtest.txt"))

SW.WriteLine("test");

using (StreamReader SR = new StreamReader("SDtest.txt"))

Debug.Print(SR.ReadLine());

 

}

catch (Exception exc)

{

message = exc.Message;

}

 

SD card 4GB Fat32

 

Can anyone help please