Controller Area Network (CAN) with OptoLyzer Studio and OptoLyzer MOCCA CL

CAN (Controller Area Network) has been an ISO standard for over 20 years and is still one of the most prominent automotive network technologies today. It can also be found in a large variety of application domains outside of automotive like industrial, building technology and medical. This video will explain CAN fundamentals and show a practical example that is analyzed with the help of development tools from K2L.

[@hfe1833]

Of all the can bus information I've watched this one is more informative and clear explanation, clear as crystal

[@K2lDe-connecting-networks]

Thank you for the positive feedback!

[@orgosoft]

Thank you for the tutorial. It is wonderful. would bit stuffing add an extra bit to the data?

[@K2lDe-connecting-networks]

Thank you! Yes, it adds to the length of the frame.

[@wangyin3149]

How to enable on Trace View to highlight only values that changed? I'm using this application but I couldn't figure out how.

[@littlebeargaming8267]

When is a signal sent onto the bus?

[@robinbasulto9313]

If CAN Bus uses two cables that both have a voltage, how is the circuit completed without a ground?

[@K2lDe-connecting-networks]

Hello Robin, thank you for your Question, we will Forward this to one of our Engineering colleagues. Please stay tuned. With Best Regards, Andreas

[@K2lDe-connecting-networks]

Dear Robin, Many thanks for watching the K2L video related to CAN bus Analysis with the K2L OptoLyzer® Studio and the K2L MOCCA CL. Many thanks for your question as well. With respect to your question, as the CAN bus is a differential bus, only the voltage difference between the two bus lines CANH and CANL is relevant. The evaluation of this difference results in one of the two logical states recessive or dominant; therefore, it is not required to provide a common ground. If you would like to dig deeper in relation to the CAN bus physical layer, you could refer e.g. to the Microchip application note AN288 with title: “A CAN Physical Layer Discussion” that you can find at ww1.microchip.com/downloads/en/appnotes/00228a.pdf. Please continue to follow K2L on KZbin. We at K2L are looking forward to receive your first order; for requesting a quote, please visit www.k2l.tools.