Go to Post Don't short change your drivers. They really need drive time. - Joe Johnson [more]
Home
Go Back   Chief Delphi > Technical > Control System
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
 
 
Thread Tools Rating: Thread Rating: 8 votes, 5.00 average. Display Modes
Prev Previous Post   Next Post Next
  #7   Spotlight this post!  
Unread 31-01-2014, 22:26
Ether's Avatar
Ether Ether is offline
systems engineer (retired)
no team
 
Join Date: Nov 2009
Rookie Year: 1969
Location: US
Posts: 8,117
Ether has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond repute
Re: Thread scheduler for PID period control ?

Quote:
Originally Posted by Joe Ross View Post
I just ran the following code:

Code:
    double prevTime = 0;
    public void teleopPeriodic() {
        double time = Timer.getFPGATimestamp();
        System.out.println(time-prevTime);
        prevTime=time;
    }
And got the following output...
I took the liberty of plotting it. Attached.


Attached Thumbnails
Click image for larger version

Name:	TeleOp jitter.png
Views:	39
Size:	16.9 KB
ID:	16040  Click image for larger version

Name:	TeleOp jitter2.png
Views:	33
Size:	14.4 KB
ID:	16041  

Last edited by Ether : 31-01-2014 at 22:36. Reason: added 2nd graph
Reply With Quote
 


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 23:48.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi