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TCAN4550: SPI to CAN

manu
Prodigy 190 points
Part Number: TCAN4550

Hi,

How to validate the Internal Loop Back Test Mode ?

Is there any procedure to validate this ? if there please suggest the same.

Best Ragards,

Manu

  • 0
    TI__Guru 53555 points

    Hi Manu,

    The internal loopback test mode can be used to test the CAN controller settings for the device without the use of external electrical connections to a CAN bus. This simplified setup allows for validation of configuration settings without the added complexities of an external physical system. There is no specified test procedure to validate this test mode as it is meant to be used to test desired controller configurations. 

    Let me know if this is clear and if you have any more questions.

    Regards,
    Eric Schott

  • 0 in reply to Eric Schott1
    Prodigy 190 points

    Hi,

    Register setting are done as per datasheet. Is it possible send and receive the some data in loop back mode ?

    Best Regards,

    Manu

  • 0 in reply to manu
    TI__Guru 74252 points

    Manu,

    Yes, the intention of this mode is to test the controller configurations. So, you can test the SPI configuration and messaging capabilities by configuring the controller as you normally would, and then "transmitting" a CAN frame. If the CAN frame is "received" by the storage element you configured, and an interrupt gets asserted, then you'll know you configured it correctly.

    Regards,

    Eric Hackett