Originally Posted by Robototes2412 (Post 948134)

Umm, i dont know. i do have a quick question for you though. Are you prepared to have two robots to program for? They cannot have any communication with either eachother or the world, and there is only one gaming adapter. At most, i'd use an arduino, but a whole other cRIO, i wouldn't.

Originally Posted by Al3+ (Post 948143)

Hmmmm...

<R56> ROBOTS must be controlled via the programmable National Instruments cRIO-FRC (National Instruments part number 780406-01). Other controllers shall not be used.

Custom circuits and additional electronics are allowed to utilize the Port 2 Ethernet bus and/or the CAN-bus to communicate between devices. Note however, that the ROBOT must be controlled by the cRIO-FRC (see Rule <R56>). Thus, any additional devices on the Ethernet or CAN-bus must not provide command signals that do not originate from the cRIO-FRC It is our intent to incrementally open access to the full control system technologies in a controlled manner that reduces the risk of “unanticipated surprises” as we gain experience with the system.

That's what the competition manual says; I'm not sure how to interpret it or how you plan to use the other cRIO.

Originally Posted by MattD (Post 948142)

At minimum, I'd imagine this would violate <R22>. I'm not aware of any other rule that would specifically prohibit this, but I'm also not aware of any reason to use more than one cRIO on one robot.

Originally Posted by biojae (Post 948149)

As far as communications go, the second ethernet port on the cRio (one that communicates to FMS) can be used to talk to the second cRio.



Emphasis mine.

Originally Posted by davidthefat (Post 948147)

But technically it is a KOP thing... Just multiple:D

Originally Posted by davidthefat (Post 948129)

http://sine.ni.com/nips/cds/view/p/lang/en/nid/203964

I am assuming that is the cRio that we get... Is it legal to used a 2nd crio on your robot? Its a PowerPC based controller... Thats interesting isnt it? My mentor said that he was willing to buy another cRio for me to practice on, so why not use 2 on the robot?

Originally Posted by davidthefat (Post 948152)

Its also probably possible to hook up another microcontroller as a Digital I/O

Originally Posted by Andrew Schreiber (Post 948160)

Check the rules for custom electronics. If it meets all those rules you are ok.

BUT It is probably way too late to do this for 2010 and 2010 rules don't apply for 2011...

Originally Posted by davidthefat (Post 948166)

Dont the general rules stay the same year by year?

Originally Posted by biojae (Post 948162)

Which is correct, but if you have an ethernet port on your microcontroller (or 2nd cRio) why wouldn't you want to get 1 or more megabytes per second throughput?

Going through GPIO is going to be slower then ethernet.