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TCAN1146-Q1: unable to achieve selective wake up

Daoyan Zhao
Expert 4045 points

Part Number: TCAN1146-Q1

Hi Expert,

My customer found when using sleep function, it occurs INH pin pull low quickly then go high again, during this time, the message is being sent continuously. 

And code will config wake up frame ID=0x434, but it occurs any frame can wake up device, below is customer configuration, what may be the possible problem? 

Also can you share me a configuration demo code for selective wake up? 

Thanks a lot!

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  • 0
    TI__Guru 74922 points

    Daoyan,

    Please visit the product page on TI.com for TCAN1146-Q1 to find an application note that details each step and requirement for Selective Wake. Based on your description, the device is just going into regular Sleep mode. Instead of sharing code snippets, can you share your register configuration for Selective Wake?

    Regards,

    Eric Hackett