Chief Delphi - Grip persist after Robot reset

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Programming (http://www.chiefdelphi.com/forums/forumdisplay.php?f=51)

- - Grip persist after Robot reset (http://www.chiefdelphi.com/forums/showthread.php?t=143932)

Grip persist after Robot reset

Is there a way to make Grip stay and run automatically after the robot restarts?

It works fine if I deploy it and use it without power cycling the robot.

If not, having to redeploy at the beginning of each match would most likely count as a delay penalty.

Re: Grip persist after Robot reset

Quote:

Originally Posted by Cobra Commander (Post 1540846)

You need to add code to your robot code to start GRIP. This is documented on the GRIP github Wiki

Re: Grip persist after Robot reset

For anyone else who didn't know this. Here is the link to the article.

https://github.com/WPIRoboticsProjec...EW-FRC-program

Re: Grip persist after Robot reset

After looking at the wiki I'm still having trouble. I am having a permission denied error.

We are using Java.

I am trying to start "/home/lvuser/grip.jar" is this the right file?

The code

Code:

try {

                 new ProcessBuilder("/home/lvuser/grip.jar").inheritIO().start();

            SmartDashboard.putString("Grip", "Started");

            System.out.println("Grip Process Started"); //Print to RioLog

        } catch (Exception e) {

            SmartDashboard.putString("Grip", "Is Bad News");

            e.printStackTrace();

        }

                visionTable = NetworkTable.getTable("GRIP/myContoursReport");

The Error

Code:

        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1042) 

         at org.usfirst.frc.team498.robot.Robot.<init>(Robot.java:23) 

         at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) 

         at java.lang.reflect.Constructor.newInstance(Constructor.java:408) 

         at edu.wpi.first.wpilibj.RobotBase.main(RobotBase.java:204) 

         at java.lang.UNIXProcess.forkAndExec(Native Method) 

         at java.lang.ProcessImpl.start(ProcessImpl.java:134) 

         ... 8 more 

 platform: /Linux/arm/ 

         at org.usfirst.frc.team498.robot.VisionManager2016.<init>(VisionManager2016.java:26) 

         at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 

 Caused by: java.io.IOException: error=13, Permission denied 

         at java.lang.ProcessBuilder.start(ProcessBuilder.java:1023) 

 java.io.IOException: Cannot run program "/home/lvuser/grip.jar": error=13, Permission denied 

         at java.lang.Class.newInstance(Class.java:433) 

 NT: server: client CONNECTED: 10.4.98.147 port 49582 

         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 

         at java.lang.UNIXProcess.<init>(UNIXProcess.java:187)

Re: Grip persist after Robot reset

Quote:

Originally Posted by Cobra Commander (Post 1541003)

After looking at the wiki I'm still having trouble. I am having a permission denied error.

We are using Java.

I am trying to start "/home/lvuser/grip.jar" is this the right file?

Check out the wiki page. You actually just need to run "/home/lvuser/grip", which is a wrapper script that kills previous instances of GRIP and runs it with the appropriate command line args.

Re: Grip persist after Robot reset

I had tried that originally.

This is the error I get with the copy and paste initialization.

Code:

➔ Launching «'/usr/local/frc/JRE/bin/java' '-jar' '/home/lvuser/FRCUserProgram.jar'» 

 java.io.IOException: Cannot run program "/home/lvuser/grip": error=2, No such file or directory 

         at org.usfirst.frc.team498.robot.Robot.robotInit(Robot.java:23) 

         at edu.wpi.first.wpilibj.RobotBase.main(RobotBase.java:241) 

         at java.lang.UNIXProcess.forkAndExec(Native Method) 

         at java.lang.ProcessImpl.start(ProcessImpl.java:134) 

         ... 3 more 

 platform: /Linux/arm/ 

         at edu.wpi.first.wpilibj.SampleRobot.startCompetition(SampleRobot.java:124) 

         at java.lang.UNIXProcess.<init>(UNIXProcess.java:187) 

          at java.lang.ProcessBuilder.start(ProcessBuilder.java:1042) 

         at java.lang.ProcessBuilder.start(ProcessBuilder.java:1023) 

 Caused by: java.io.IOException: error=2, No such file or directory

Is there possibly a step I am missing in the deploying process from the GUI part of GRIP?

Re: Grip persist after Robot reset

Do you have an old version of GRIP? If so, you should upgrade to v1.2.0 and deploy again

If not, can you post the log from the deploy console?

Re: Grip persist after Robot reset

Yep! I was still using an old version. Thank you for the help. All appears to work now. ::safety::