ESP32Due – Termination Resistors

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  • #5188
    Turbo4V
    Participant

    Just a question on the CAN termination resistors. I noticed the ESP32Due has termination resistors installed. If I’m trying to sniff a bus that already has termination resistors installed (60ohms), is there a way to disable the resistors on the ESP32Due in order to sniff the bus? Do I even need to? (I noticed that if I connect the ESP32Due to a correctly terminated can bus, it drops down to 40ohms resistance)

    Thanks!
    Justin

    • This topic was modified 4 months, 1 week ago by Turbo4V. Reason: spelling
    #5494
    ckidder
    Keymaster

    There isn’t a way to disable the termination on the ESP32Due. Well, you can but you’d need to remove the resistors with a soldering station or hot air station. It is generally OK if the bus goes to 40 ohms but any more termination than that is surely asking for trouble. It really is best to shoot for the proper 60 ohms if at all possible.

    #5635
    ethanhernandez6461
    Participant

    saa

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