TMS320F28386D: FSI skew compensation measurement tool error

Clément Letonnelier

Hello,

We encountered a bug while using the tool mentioned in the spracj9 application note.

It worked until we input the measurement from made in single data line configuration with a prescale of 2 at 200MHz PLL clock (i.e. 100Mbit/s).

You'll find attached the log of the error as well as the data file so you can reproduce the issue.

Fullscreen FSI Utility error.txt Download

C:\Users\x493146\Documents\Airbus\spracj9\FSISkewCompensationUtility\dist>java -jar FSISkewCompensationUtility.jar
Generating RX0 vs CLK
Done Writing RX0 vs CLK
Data Size: 32, 32
Number of X Intercepts: 2
X-Intercepts: 0, 18
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
        at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1774)
        at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)
        at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
        at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
        at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
        at javafx.event.Event.fireEvent(Event.java:198)
        at javafx.scene.Node.fireEvent(Node.java:8411)
        at javafx.scene.control.Button.fire(Button.java:185)
        at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
        at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
        at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
        at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
        at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
        at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
        at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
        at javafx.event.Event.fireEvent(Event.java:198)
        at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
        at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
        at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
        at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:432)
        at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)
        at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
        at com.sun.glass.ui.View.notifyMouse(View.java:937)
        at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
        at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at sun.reflect.misc.Trampoline.invoke(Unknown Source)
        at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at sun.reflect.misc.MethodUtil.invoke(Unknown Source)
        at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769)
        ... 48 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 2
        at fsi.FSICore.CalculateSingleLineExecutionPoint(FSICore.java:53)
        at fsiskewcompensationutility.MainMenu_FXMLController.SingleLineRX0vsCLK_B_Click(MainMenu_FXMLController.java:96)
        ... 58 more

Best regards,

Clément

SingleDataLine_PRESCALE_2_(100Mbits).dat

over 3 years ago

0 Kevin Allen18 over 3 years ago

TI__Mastermind 45606 points

Hi Clément,

I'm having issues running the 'FSISkewCompensationUtility.cmd' currently to test your .dat file. What is your HW set-up for testing the skew compensation?

Best,

Kevin

0 Clément Letonnelier over 3 years ago in reply to Kevin Allen18

Genius 3071 points

Hi Kevin,

Not sure what you meant by HW, are you inferring our electronic board or our computer ?

In any case, the skew compensation utility works well for other .dat files that we collected at a other frequencies.

The bug is encountered only with the .dat file I provided to you.

Did you run your utility through the .jar file to select the single data line menu ?

Clément

0 Kevin Allen18 over 3 years ago in reply to Clément Letonnelier

TI__Mastermind 45606 points

Hi Clément,

Clément Letonnelier said:
Not sure what you meant by HW, are you inferring our electronic board or our computer ?

Sorry, I meant the hardware set-up. i.e. what boards / connections your making for FSI communication.

I'm having issues starting the 'FSISkewCompensationUtility.cmd' utility, I will check with another colleague on this.

Best,

Kevin

0 Clément Letonnelier over 3 years ago in reply to Kevin Allen18

Genius 3071 points

Hi Kevin,

Ah ok understood.

We are using our own designed board but I don't think it matters as the jar tool works well for other frequencies.

So I rather suspect a small bug in the java code.

Best regards,

Clément

0 Nima Eskandari over 3 years ago in reply to Clément Letonnelier

TI__Guru 52220 points

Let me see if I can launch FSISkewCompensationUtility.cmd. I'll get back to you.

0 Nima Eskandari over 3 years ago in reply to Nima Eskandari

TI__Guru 52220 points

I found the issue. You are getting "one" random failure at the location below:

0 Nima Eskandari over 3 years ago in reply to Nima Eskandari

TI__Guru 52220 points

You see how that is an E instead of an F, it means that the first TX = 0 failed. It was probably not a real fail but due to the speed that you are running you saw this failure.

This causes the algorithm to find too many Y intercepts and the code was written to handle only 2 y-intercepts so it crashes.

0 Nima Eskandari over 3 years ago in reply to Nima Eskandari

TI__Guru 52220 points

0 Nima Eskandari over 3 years ago in reply to Nima Eskandari

TI__Guru 52220 points

I got it to launch by adding just a few codes into the JAVA:

+1 Nima Eskandari over 3 years ago in reply to Nima Eskandari

TI__Guru 52220 points

There are two things you can try. The issue was it was having a problem finding the intercepts on the Y axis due to the failure here:

1. You can artificially remove that failure point from the data you captured.

2. You can use the new code (JAVA) that I just updated!

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/171/FSISkewCompensationUtility.jar

This JAR file goes in the folder:

and replaces the existing one!

0 Clément Letonnelier over 3 years ago in reply to Nima Eskandari

Genius 3071 points

Nima,

Thank you for the investigations and your feedbacks.

We indeed felt on a corner case

Clément

0 Nima Eskandari over 3 years ago in reply to Clément Letonnelier

TI__Guru 52220 points

Let me know if you run the DUAL line one and have a corner case like this. I really appreciate you sending the DATA file along with your post. It helped me resolve this immediately.

0 Nima Eskandari over 3 years ago in reply to Nima Eskandari

TI__Guru 52220 points

I will also work with the Docs team to update the Application report ZIP file.

Thank you again!

Nima

0 Clément Letonnelier over 3 years ago in reply to Nima Eskandari

Genius 3071 points

With the modified version of the .jar it worked fine also on the DUAL line one, no corner case.

No problem, I figured it would be faster/easier with the .dat file attached.

Clément

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TMS320F28386D: FSI skew compensation measurement tool error