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CAN Module with F28069 Launchpad

Andrew Butler
Expert 2520 points
Other Parts Discussed in Thread: CONTROLSUITE

I wanted to know if there is any documentation and example code for using the CAN module on the F28069 Launchpad

  • 0
    Guru 192875 points
    Hi Andrew,

    Here is the example for eCAN peripheral: C:\ti\controlSUITE\device_support\f2806x\v141\F2806x_examples_ccsv5\ecan_back2back
    For documentation download the TRM from F28069 Webpage:
    www.ti.com/.../tms320f28069

    Regards,
    Gautam
  • 0 in reply to Gautam Iyer
    Expert 2520 points

    I am simply trying to run the Example_2806xECanBack2Back example in the ControlSuite and I have a couple questions about the initial setup.

    Do I need to add an additional 120Ohm resistor between the CANH and CANL pins in order to achieve a total resistance of 60Ohm?

    Can I just attach probes to the CANH and CANL pins so that I can read the traffic on the CAN bus?

    I added an additional 120Ohm resistor between the CANH and CANL pins and attached probes to the CANH and CANL pins in order to watch the CAN traffic on my scope. Within CCS I am watching the "PassCount", "ErrorCount", and "MessageReceivedCount" variables and I am able to verify that the "PassCount" and "MessageReceivedCount" variables are incrementing. However, I do not see any CAN traffic on the CAN bus. I only see that CANH and CANL are both at 2V.