BGS5T serial communication issues | Telit Cinterion IoT Developer Community

Hello.
I'm having a similar issue with the RS232Demo.

I have a USB to serial converter connected to BGST5 and an extension, to connect the device port to my pc. I'm using Hyperterminal to send simple inputs and I should get them in my Netbeans console.
Even more strange, I managed to receive data a few hours ago but as soon as I ran another programm and tried to run the demo again, it stopped receiving data.

Here's my code:

 package RS232Demo;



import javax.microedition.midlet.*;

import java.io.*;

import javax.microedition.io.*;





public class RS232Demo extends MIDlet {



  CommConnection  commConn;

  InputStream     inStream;

  OutputStream    outStream;



  /**

   * RS232Demo - default constructor

   */

  public RS232Demo() {

    System.out.println("RS232Demo: Constructor");

    System.out.println("Available COM-Ports: " + System.getProperty("microedition.commports"));

    try {

      String strCOM = "comm:COM0;blocking=off;baudrate=115200;autocts=on;autorts=on";

      commConn = (CommConnection)Connector.open(strCOM);

      System.out.println("CommConnection(" + strCOM + ") opened");

      System.out.println("Real baud rate: " + commConn.getBaudRate());

      inStream  = commConn.openInputStream();

      outStream = commConn.openOutputStream();

      System.out.println("InputStream and OutputStream opened");

    } catch(IOException e) {

      System.out.println(e);

      notifyDestroyed();

    }

  }



  /**

   * startApp()

   */

  public void startApp() throws MIDletStateChangeException {

    System.out.println("RS232Demo: startApp");

    System.out.println("Looping back received data, leave with 'Q'...");

    try {

      int ch = -1;

      while(ch != 'Q') {

        ch = inStream.read();

        if (ch >= 0) {

          outStream.write(ch);

          System.out.print((char)ch);

        }

      }

    } catch(IOException e) {

      System.out.println(e);

    }

    System.out.println();

    destroyApp(true);

  }



  /**

   * pauseApp()

   */

  public void pauseApp() {

    System.out.println("RS232Demo: pauseApp()");

  }



  /**

   * destroyApp()

   *

   * This is important.  It closes the app's RecordStore

   * @param cond true if this is an unconditional destroy

   *             false if it is not

   *             currently ignored and treated as true

   */

  public void destroyApp(boolean cond) {

    System.out.println("RS232Demo: destroyApp(" + cond + ")");

    try {

      inStream.close();

      outStream.close();

      commConn.close();

      System.out.println("Streams and connection closed");

    } catch(IOException e) {

      System.out.println(e);

    }



    notifyDestroyed();

  }

}



 

I think I have the right configuration but still I don't get any data when I run the program. 

Can someone lend me some help?

Edit: Yes, I tried switching all the parameters on and off haha. 

Thanks :)