FIRST Forums  

Go Back   FIRST Forums > General Discussions > FIRST Programs > FIRST Robotics Competition > Competition Discussion > Control System > CAN

Reply
 
Thread Tools
  #1  
Old 02-18-2012, 10:02 PM
rookie1016 rookie1016 is offline
Junior Member
 
Join Date: May 2011
Posts: 6
Default Help with CAN

I am part of a second year team trying to use a CAN Jaguar with an encoder to regulate the speed of the spinning wheel on our launcher, but we are having no success in communicating with the Jaguar to put in the correct firmware. Is there a souce or set of sources that I can use to make sure we're doing it right?
Reply With Quote
  #2  
Old 02-19-2012, 03:19 AM
Joe Hershberger Joe Hershberger is offline
Senior Member
 
Join Date: Sep 2008
Location: National Instruments: Austin, TX
Posts: 442
Default Re: Help with CAN

If your goal is to control the speed of a wheel, I recommend you use the encoder connected to the cRIO and run the control loop there. I have had difficulty tuning the speed control PID on the Jaguar.
Reply With Quote
  #3  
Old 03-01-2012, 04:42 PM
rookie1016 rookie1016 is offline
Junior Member
 
Join Date: May 2011
Posts: 6
Default Re: Help with CAN

I was actually looking for help with putting the firmware onto the jaguar.
Reply With Quote
  #4  
Old 03-02-2012, 12:37 AM
Joe Hershberger Joe Hershberger is offline
Senior Member
 
Join Date: Sep 2008
Location: National Instruments: Austin, TX
Posts: 442
Default Re: Help with CAN

Quote:
Originally Posted by rookie1016 View Post
I was actually looking for help with putting the firmware onto the jaguar.
If you installed the NI utilities update for FRC 2012, then your public documents/FRC dir should have legal firmware (v99). There is a newer version available from ti.com.
Reply With Quote
  #5  
Old 03-03-2012, 04:55 PM
rookie1016 rookie1016 is offline
Junior Member
 
Join Date: May 2011
Posts: 6
Default Re: Help with CAN

How about the serial/CAN converter, how should that be wired?
Reply With Quote
  #6  
Old 03-03-2012, 07:24 PM
Kevin O'Connor Kevin O'Connor is offline
Administrator
 
Join Date: Oct 2011
Posts: 155
Default Re: Help with CAN

The end of this document from Ti.com/jaguar describes the cabling
__________________
FIRST®
FRC Robotics Engineer
Reply With Quote
  #7  
Old 03-05-2012, 11:44 AM
rookie1016 rookie1016 is offline
Junior Member
 
Join Date: May 2011
Posts: 6
Default Re: Help with CAN

Thanks.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:40 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2013, vBulletin Solutions, Inc.