View Single Post
  #13   Spotlight this post!  
Unread 28-04-2008, 09:16
crake crake is offline
National Instruments
AKA: Chris Rake
no team (Athena)
Team Role: Engineer
 
Join Date: Apr 2008
Rookie Year: 2008
Location: Austin, TX
Posts: 185
crake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond repute
I'll focus on the HW answers (Greg can snag the SW):

Quote:
Originally Posted by Qbranch View Post
How much resolution do the PWM outputs have? What frequency do they output at?
A: The PWM periods are configurable and the 9403 DIO module has an update rate of 6.625us. The period would depend on the type of motor controller that is used. While I can not speculate on future motor controllers, I can say that the IO module was selected with this update rate (and the resulting resolution/period ratio) in mind.

Quote:
One last question on the 150lb weight limit: If this is true, why are batteries and bumpers not included in the weight limit? FIRST robots currently weigh a good deal more than 150lb with a full complement of bumpers and batteries.
I don't know that answer for 2009 - that will be completely up to FIRST.

Last edited by crake : 03-05-2008 at 04:37. Reason: Updating the 9403 update rate
Reply With Quote