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Update chemistry ID

Prasanna
Intellectual 275 points
Other Parts Discussed in Thread: BQ34Z100-G1, BQSTUDIO

Hi,

   I am using bq34z100-G1 fuel guage and I want to change the chemistry ID.

Found the data flash location for "Device chemistry" in datasheet, but it seems to be accepting a string (LION). 

Anybody can help me with the data flash address, where the chemistry ID (default value: 0107) resides.

FI: I am not using the battery management tool and trying to update the flash, going by the datasheet.

Thanks in advance,

Sai

  • 0
    TI__Expert 5090 points

    Hi Sai,

    To be clear, the chemID consists of multiple bytes of information which must be downloaded into data flash.  The device also includes one flash location that holds the ID number, but the real ID is the larger packet of data.

    For downloading a chemID, we recommend you start out using bqStudio to load the device and configure it as you need.  Then you can generate a flashstream (fs) file from the Programming tab within bqStudio.  This file provides pseudocode that can be easily converted into I2C or HDQ commands to update the data flash.

    Thanks,

    Terry

  • 0 in reply to -Terry
    Intellectual 275 points

    Ok.

    Can you tell me the flash location that holds the ID number?

    Thanks,

    Sai