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Re: Intermittent connection on field only
Oliver,
The nature of the signaling on the CAN bus uses switching in the transceivers to cause a device to enter a 'dominant' state for transmit and a 'recessive' state for receive. It is my understanding this is accomplished by driving the bus in a way that causes current flow in the terminating resistors. The CAN terminating resistors also provide the transmission line termination to allow 1 Mb/s traffic on a buss 40 meters long. Microchip has a nice application note, AN228, describing one of their products and the CAN signaling.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.
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This year may be one of the first years where there is a drastic difference in Regional level and Championship level strategies that drive robot design. - tim-tim [more] 
11-05-2012, 12:43
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