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Unread 26-01-2010, 11:51
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Re: Black jaguars: not working

Quote:
Originally Posted by Bryscus View Post
BTW: NEW CANJag CODE IS AVAILABLE FOR DOWNLOAD!!!



If I were you, I'd add the termination resistor at the end. They aren't hard to make, and technically you're violating the spec of the CAN bus. If you drive under different circumstances, it isn't guaranteed to work...
I am aware of that. The intent of my post was to inform Dale that his problem was elsewhere. I assure you it performs adequately without the termination resistor in our specific configuration. This does not mean that I think it is ok to leave the resistor out of the BUS. It simply means that using our tools to monitor CAN traffic there were absolutely no CAN frame errors in our particular configuration. The termination resistor is to reduce signal reflection. Signal reflection is not influenced by external factors as much as it is based on bus length. If you keep the bus short and the utilization low, you should not have any issues. In Dales example he was only connecting one Black Jaguar(as I understood it) and no gray Jags. Since the Black Jaguar is the beginning and the end of the Bus it would be pointless to place a resistor on each end of the device since the traces inside the jaguar are the entire BUS.
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Mike Copioli
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