void COMinit(){
	
	COMMTIMEOUTS CommTimeouts;
	
	hCom = CreateFile("COM1",
      		GENERIC_READ | GENERIC_WRITE,
      		0,    // comm devices must be opened w/exclusive-access 
      		NULL, // no security attrs 
      		OPEN_EXISTING, // comm devices must use OPEN_EXISTING
      		0,    // not overlapped I/O
      		NULL  // hTemplate must be NULL for comm devices
      	);

  	if (hCom == INVALID_HANDLE_VALUE) {
      		dwError = GetLastError();
      		printf("COM1 konnte nicht geöffnet werden\n");
	}

  	// COM Einstellungen werden gelesen	
  	fSuccess = GetCommState(hCom, &dcb); 

  	if (!fSuccess) {
    		printf("Kein Status\n");
	}

  	// COM Einstellungen werden geändert
  	dcb.DCBlength = 28; // sizeof(DCB)
  	dcb.BaudRate = CBR_9600; // Baudrate at which running
  	dcb.fBinary = TRUE; // Binary Mode
  	dcb.fParity = FALSE; // Disable parity checking
  	dcb.fOutxCtsFlow = FALSE; // CTS handshaking on output FALSE
  	dcb.fOutxDsrFlow = FALSE; // DSR handshaking on output
  	dcb.fDtrControl = DTR_CONTROL_ENABLE; // DTR Flow control 
  	dcb.fDsrSensitivity = FALSE; // DSR Sensitivity
  	dcb.fTXContinueOnXoff = TRUE; // Continue TX when Xoff sent
  	dcb.fOutX = FALSE; // Disable output X-ON/X-OFF
  	dcb.fInX = FALSE; // Disable input X-ON/X-OFF 
  	dcb.fErrorChar = FALSE; // Disable Err Replacement
  	dcb.fNull = FALSE; // Disable Null stripping
  	dcb.fRtsControl = RTS_CONTROL_ENABLE; // Rts Flow control  
  	dcb.fAbortOnError = TRUE; // Abort all reads and writes on Error
  	dcb.XonLim = 2048; // Transmit X-ON threshold
  	dcb.XoffLim = 512; // Transmit X-OFF threshold
  	dcb.ByteSize = 8; // Number of bits/byte, 5-8
  	dcb.Parity = NOPARITY; //None,Odd,Even,Mark,Space
  	dcb.StopBits = ONESTOPBIT; //1, 1.5, 2 
  	dcb.XonChar = 17; // Tx and Rx X-ON character 
  	dcb.XoffChar = 19; // Tx and Rx X-OFF character 
  	dcb.ErrorChar = 0; // Error replacement char
  	dcb.EofChar =0; // End of Input character 
  	dcb.EvtChar = 0; // Received Event character
  
  	// COM Einstellungen werden geschrieben 
  	fSuccess = SetCommState(hCom, &dcb);
  
  
  	GetCommTimeouts(hCom, &CommTimeouts);

  	CommTimeouts.ReadIntervalTimeout = MAXDWORD;
  	CommTimeouts.ReadTotalTimeoutMultiplier = 0;
  	CommTimeouts.ReadTotalTimeoutConstant = 0;
  	CommTimeouts.WriteTotalTimeoutMultiplier = 10;
  	CommTimeouts.WriteTotalTimeoutConstant = 1000;


  	if (FALSE == SetCommTimeouts(hCom, &CommTimeouts)){
  		printf("CommTimeouts konnten nicht gesetzt werden\n");
  	}
  
  
  	if (!fSuccess) {
    		printf("Status nicht geschrieben\n");
	}
}