Hi all,
My code gives error when i connect my keyboard as “An unhandled exception of type ‘System.InvalidOperationException’ occurred in GHIElectronics.NETMF.IO.dll” :
Thanks for advance :
static USBH_Keyboard keyboard;
static string okunan = "";
static OutputPort red, yellow, green;
static PersistentStorage sdPS;
public static void Main()
{
// ... check if SD is inserted
// SD Card is inserted
// Create a new storage device
sdPS = new PersistentStorage("SD");
// Mount the file system
sdPS.MountFileSystem();
// Assume one storage device is available,
// access it through NETMF
string rootDirectory = VolumeInfo.GetVolumes()[0].RootDirectory;
FileStream FileHandle = new FileStream(rootDirectory + @ "\log.txt", FileMode.Append );
byte[] data =
Encoding.UTF8.GetBytes("Program başlatılıyor : " + System.DateTime.Now );
// write the data and close the file
FileHandle.Write(data, 0, data.Length);
data =
Encoding.UTF8.GetBytes("IP alınıyor : " + System.DateTime.Now);
// write the data and close the file
FileHandle.Write(data, 0, data.Length);
red = new OutputPort((Cpu.Pin)FEZ_Pin.Digital.Di3, false);
green = new OutputPort((Cpu.Pin)FEZ_Pin.Digital.Di2, false);
yellow = new OutputPort((Cpu.Pin)FEZ_Pin.Digital.Di8, false);
//PWM piezo = new PWM((PWM.Pin)FEZ_Pin.PWM.Di5);
// Subscribe to USBH event.
USBHostController.DeviceConnectedEvent += DeviceConnectedEvent;
USBHostController.DeviceDisconnectedEvent += DeviceDisconnectedEvent;
// Sleep forever
Thread.Sleep(Timeout.Infinite);
}
static void DeviceConnectedEvent(USBH_Device device)
{
if (device.TYPE == USBH_DeviceType.Keyboard)
{
// ... check if SD is inserted
// SD Card is inserted
// Create a new storage device
/* !******************GIVES ERROR HERE*************************! */
sdPS = new PersistentStorage("SD");
// Mount the file system
sdPS.MountFileSystem();
string rootDirectory = VolumeInfo.GetVolumes()[0].RootDirectory;
FileStream FileHandle = new FileStream(rootDirectory + @ "\log.txt", FileMode.Append);
byte[] data =
Encoding.UTF8.GetBytes("Klavye bağlandı : " + System.DateTime.Now);
// write the data and close the file
FileHandle.Write(data, 0, data.Length);
Debug.Print("Klavye Bağlandı");
keyboard = new USBH_Keyboard(device);
keyboard.KeyUp += Keyup;
// Hazır halde, sarı yanıyor
yellow.Write(true);
green.Write(false);
red.Write(false);
}
}