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???
10/16/09 16:43
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#169798 - Bus Speed
Responding to: ???'s previous message
I recently needed to connect a PC to a CAN bus running at an unknown speed. I would suggest you cause the ECU to transmit messages and connect a scope to the bus (either the high or low line). Capture a single CAN frame and it should be easy to measure a single bit time. That will give you an approximation of the baud rate.

Then get a CAN interface like PCAN-USB from www.peak-system.com. It comes with PCAN-View which allows you to view CAN messages. PEAK also have more sophisticated software like PCAN Explorer.

Andy

List of 12 messages in thread
TopicAuthorDate
CAN protocol            01/01/70 00:00      
   CAN is not the Protocol            01/01/70 00:00      
      CAN bus            01/01/70 00:00      
         I is not that            01/01/70 00:00      
         Protocol            01/01/70 00:00      
            Bus Speed            01/01/70 00:00      
               Reverse engineering CAN protocol            01/01/70 00:00      
                  Broadcast or requests            01/01/70 00:00      
                     can protocol            01/01/70 00:00      
                        CAN            01/01/70 00:00      
                           Remarkably helpful            01/01/70 00:00      
                              Depends on what they sell            01/01/70 00:00      

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