How to determine the latency time?

Hi
How do I determine the latency time?
I need to connect 3 CAN nodes onto the CAN bus and need to know how to determine the delay(latency) time needed between the transmission of a message from one node and reception at the other,
The latency time and Bandwidth both play a role in the transmission, right?
Thanks
Ekta

Hi Ekta,
The software you need if you are using an NI board is NI-CAN, and you can look at the driver download page for the appropriate version for your operating system. I'll suggest you take a look at the example programs that install with that driver to get you started. If you are developing using LabVIEW or LabWindows/CVI, go to Help>>Find Examples>>Hardware Input and Output>>CAN for examples. If you are using Visual Basic or C, go to ...\National Instruments\NI-CAN for examples. I have also attached a LabVIEW example below that shows how to enable self reception.
If you are using another vendor's CAN board, you will need to install their driver, and see if they have any examples to get you started. I assume the approach for measuring the latency will be similar to what I suggested. Hope this helps. Goodluck!
Regards,
Message Edited by _Belle on 04-28-2006 07:42 AM
Ebele O.
National Instruments
Attachments:
Self_Reception.vi ‏97 KB

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