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TCAN1043-Q1: Data transmission method

Kyle Kim
Prodigy 150 points
Part Number: TCAN1043-Q1

Tool/software:

Hi team,

I am in charge of evcc(charge inlet control) application.

And I have two questions:

1.

I want to know how to transfer and receive data using can bus.

That is,

When exchanging information via CAN BUS, could you explain the method?

(For example, data is transmitted by detecting the voltage difference between CAN H and CAN L.)

2.

Are there any other devices that have similar VCM to TCAN1043-q1 and have similar performance?

Because It's OEM's request.

Thank you!

  • 0
    TI__Genius 13952 points

    Hi Kyle,

    Thanks for reaching out about our CAN transceivers!

    If you are looking for information on the CAN standard, I would highly recommend our Precision Labs video series which goes into on this. It is an excellent training resource with helpful visuals created by one of our systems engineers:

    https://www.ti.com/video/series/precision-labs/ti-precision-labs-can-lin-sbc.html

    For your second question, we have multiple other CAN transceivers with various features (bottom of the page shows a features graph):

    https://ti.com/can

    However if you are looking for another interface for communication similar to the CAN, I would recommend looking into RS-485:

    https://www.ti.com/interface/rs-485-rs-422/overview.html

    Similarly it uses a differential bus (either half duplex 2-wires or full duplex 4-wires). The key difference between these is that CAN has a standardized software protocol while RS-485 only defines the physical layer. This allows RS-485 to support a wide range of existing protocols, but the designer must determine which is best for their system. RS-485 requires a command-responder configuration (i.e. master-slave), but CAN uses a software protocol technique called arbitration to determine which device on the bus can communicate. Arbitration is further discussed in the Precision Labs series. 

    Let me know if that is the information you were looking for, or if you have any further questions,

    -Ethan