Java on zedboard

Hi lyoder,

Have you looked at the "Display Panel Ubuntu Tutorial for ZedBoard" reference design on the Reference Design/Tutorials page for the display kit?

When running Ubuntu desktop, you should be able to use Java on your ZedBoard.  Take a look at this Xilinx forum thread also:

http://forums.xilinx.com/t5/Embedded-Linux/How-to-run-graphical-java-application-on-Zynq/td-p/273356

Regards,

-Kevin

Thanks for the reply!

I actually found the Ubuntu tutorial shortly after posting and forgot to update the post regarding this. I have unfortunately encountered a new issue in regards to the tutorial. I am unsure how to install the Zynq toolchain required to complete the steps and in the process of researching now on how to install. I will update on this post if I find anything.

Thanks,

-Laynce

Update,

Found the labs instructing to install GCM, should be fine now

-Laynce

Installed Java just fine using Linaro Ubuntu, issue arose now though same as xilinx post where X11 was needed and not found. Unsure if able to get X11 on this OS or not.

-Laynce

Hi Laynce,

Yes, you should be able to get this to work when you launch your application from a desktop terminal.

I used apt-get to install Java JRE and JDK under Ubuntu running on MicroZed with the 7 Inch display kit according to this tutorial:

https://www.digitalocean.com/community/tutorials/how-to-install-java-on-ubuntu-with-apt-get

Then I wrote a quick application that I borrowed from the folks at Oracle which I will post in the next post.

I compiled it by calling the Java Compiler:

javac FrameDemo.java

Then ran it by running the Java code:

java -classpath . FrameDemo

A small frame then popped up in front of my terminal window.  So yes, I believe that X11 needs to be available to run a GUI application like this but if you are running as the linaro user from the desktop rather than as root from the serial terminal then you should be able to get this to work.

Regards,

-Kevin

Found here:

docs.oracle.com/.../FrameDemo.java

/*
 * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Oracle or the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */ 

/* package components; */

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/* FrameDemo.java requires no other files. */
public class FrameDemo {
    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event-dispatching thread.
     */
    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("FrameDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JLabel emptyLabel = new JLabel("");
        emptyLabel.setPreferredSize(new Dimension(175, 100));
        frame.getContentPane().add(emptyLabel, BorderLayout.CENTER);

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

Here is what it should look like:

Regards,

-Kevin

Thanks for the help!works with swing, trying to also have JavaFX run and encountering more issues, after installing openGL ES to run JavaFX I now get a new error:

libEGL warning: DRI2: failed to authenticate

It I think may be a bug in older Linux versions, so using a different Linux might fix but unsure, may people have encountered the same issue but no set fix I could find.

Laynce