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Unread 04-04-2011, 21:16
jtdowney jtdowney is offline
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AKA: John Downey
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Re: Unexplained intermittent CAN / 2CAN Jaguar problems at GSR

Quote:
Originally Posted by John Heden View Post
Greetings,

R59 adds some expansion to R50 stating:
<R59> If CAN-bus communications are used, the CAN-bus must be connected to the cRIO-FRC through either the Ethernet network connected to Port 1, Port 2, or the DB-9 RS-232 port connection.

Our 2CAN connection directly to the radio is probably a rule violation (inadvertent) but was an attempt to prevent errors when we were connected (legally) to port 1. A port 2 to 2CAN connection will be our next experiment to try to avoid this issue.

john
What R59 means to me is that the 2CAN (or any custom circuit) is allowed to be on the 10.0.0.0/8 subnet and communicate through port 1 by being connected to the DAP-1522. It does not mean you can directly wire the 2CAN between the cRIO and the DAP-1522 because that would violate R50.
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John Downey
Lead Robot Inspector - Purdue IndianaFIRST District
Whitney Young Magnet High School/Robophins (FRC 4302) - Mentor (2013-current)
Midwest Regional Planning Committee - Member (2012-current)
Boilermaker Regional Planning Committee - Member (2011-2014)
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Purdue FIRST Programs - Staff Advisor (2008-2011)
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