• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 455 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ76PL455A-Q1: Daisy-Chain Communication

Jeffrey Wright
Expert 2875 points
Part Number: BQ76PL455A-Q1

Q:  I'm uncertain whether the daisy-chained com's can operate between parallel modules rather then only serialized modules of cells? That is, multiple 13S strings in parallel, all sitting at ground. 

Will this work?

Thanks in advance!

  • 0
    TI__Genius 17370 points
    Hi Jeffrey,

    Yes, the bq76pl455 can be configured in a multi-drop configuration where you connect each device to a host mcu/CAN bus that will manage all communication. Further information can be found in this document: www.ti.com/.../slua785.pdf.

    Best Regards,

    Taylor
  • 0 in reply to Taylor Vogt
    Expert 2875 points

    Thanks Mr. Vogt;

    I reviewed the document but it doesn't include the scenario I'm questioning.  My client want's to use the daisy-chained UART communications just as if there were several stacked modules, BUT in their case, the modules are NOT stacked, but sit in parallel (i.e. all at ground level). I don't see why this would not work, but since I'm not familiar with the daisy-chained comm's inner workings, I'm not 100% certain.

    Thanks if you can clarify this.

  • 0 in reply to Jeffrey Wright
    TI__Genius 17370 points
    Hi Jeffrey,

    Ok if I understand correctly - instead of using the MCU->UART comms for all devices like in a multidrop configuration you are wanting to use the daisy chain differential communications (not UART) to communicate to the other devices monitoring parallel modules. This should work just fine.

    Best Regards,

    Taylor