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Original question:

BQ76PL455A-Q1: Unable to Read Device Addresses in Daisy Chain Architecture

BQ76PL455A-Q1: Manual Addressing of bq76pl455

Mehmet Ugras CUMA
Prodigy 165 points
Part Number: BQ76PL455A-Q1

Hi, a multi drop configuration will be used with 10 bq76pl455s. But I cannot find a way to manually give device addresses?

Could you please help.

Kind regards

  • 0
    TI__Genius 17370 points
    Hi Mehmet,

    Please see the datasheet section 8.1.4 Device Addressing where the user has the option to do addressing via stored address, GPIO, or auto addressing. The GPIO section is most likely what you will want to do.

    Regards,

    Taylor
  • 0 in reply to Taylor Vogt
    Prodigy 165 points
    Hi Taylor,
    I saw that section but I cannot find a way to give the address manually. I am using bq76pl455 EVM GUI for parameter change. Could you please give a code snippet that shows manually giving bq address. My aim is to give a unique address for each bq76 device in a 10 board stack. And I will use a main controller card with MCU and multidrop scheme.
    Kind regards
  • 0 in reply to Mehmet Ugras CUMA
    TI__Genius 17370 points
    Hi Mehmet,

    We do not have example code for this but the only code change is to set DEVCONFIG[ADDR_SEL] ==0 and then GPIOs[4:0] are inputs that you can set the address with. It will then be stored in the ADDR register 0x0A.

    Regards,

    Taylor