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BQ40Z50-R2: update from R2 to R3 / R4 over SMBus Host

Ue
Genius 16835 points
Part Number: BQ40Z50-R2

Hi 

My customer is using the BQ40Z50-R2 in a battery pack provided by their pack manufacturer.

They find that the R3 and R4 version is now available:

https://www.ti.com/product/BQ40Z50-R2?keyMatch=BQ40Z50-R2&tisearch=search-everything&usecase=GPN#tech-docs

https://www.ti.com/tool/BQ40Z50-R3-DEVICE-FW?keyMatch=&tisearch=search-everything&usecase=software

They have this question:

Is it possible to upgrade to the R3 and R4 version in their system, meaning programming over SMBus Host ?

They see that they can load FW using bq Studio:

Can you point to helpful collateral as to how to do this ? 

Meaning "getting started" instructions for doing this outlining the necessary steps for this process ?

Best regards

Ueli

  • +1
    TI__Guru** 104905 points

    Hello Ueli,

    Yes they can update the firmware in the system from SMBus host, they will need to make a new golden image file like they did for the R2 (they cannot use the same one because the memory locations change)

    After that, they can export a flash stream file and use the Gauge Communication app note to load in the flash stream file. www.ti.com/.../slua801

    Sincerely,

    Wyatt Keller

  • 0 in reply to Wyatt Keller
    TI__Genius 16835 points

    Hello Wyatt

    Thank you for the quick reply.

    .... and I assume you meant " they cannot use the same one because the memory locations change ...."

    Best regards

    Ueli

  • 0 in reply to Ue
    TI__Guru** 104905 points

    Hello Ueli,

    Yes that's correct, I edited my post to reflect that.

    Sincerely,

    Wyatt Keller