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BQ76952: Importing from file does not read all values

Jeroen Ommering
Prodigy 180 points
Part Number: BQ76952
Other Parts Discussed in Thread: BQSTUDIO

Hi

I'm using the BQ76952 with BQ Studio 1.3.104.
After having modified a number of parameters on the data memory page, I exported my settings to file (which I did not open with Excel as mentioned...).
The problem is that if I restart BQ studio and import the file, there are at least two settings which are not taken into account: Calibration->Current->CC gain and Capacity Gain. I've set these values to 5mOhm but they always remain 1mOhm.
Reading the exported file with notepad shows the correct value of 5. So there is definitely something wrong with the import (there is no feedback at all whether an error was encountered or not...).

As you can understand, this is quite annoying. If it's only these two values, then I can (for the time being) re-enter them every time I start BQ studio but I'm not sure whether these are the only two values that are ignored, which makes the tool really useless.

Can you confirm this problem and provide us with a corrected version ?
(it is not possible to go back to an earlier version of BQ Studio since these versions do not recognize the "7695_0_36" version of the Importing ......

Attached is the configuration file I'm using.

Another question is I have: When I change a value on the Data Memory page, it will be highlighted in red. What does this mean ? Does it indicate that the values has changed ? Or that writing to the BQ did not succeed ? and when will it be un-highlighted ?

Thanks,

Jeroen

BQ76952_3S_30A bis.gg.csv

  • +1
    TI__Guru* 81034 points

    Hi Jeroen,

    When importing the .gg file in BQStudio, the parameters under the Calibration section are not imported by default. This is because these parameters can differ from device to device. I understand this can be annoying, but there is a way to correct this.

    First, you need to go to the Window->Preferences menu and click 'Show Advanced Views'. I suggest always using this view since it shows some very useful information like parameter addresses. 

    Now when you import your .gg.csv file, click Import-> Import from File (Advanced). Then click on the 'Configure Selection' button. You will notice that all boxes are checked except the Calibration box. You can check this box. Now it will also import and write the values to the Calibration section.

    Best regards,

    Matt

  • 0 in reply to Matt Sunna
    Prodigy 180 points

    Thank Matt,

    That makes sense. The screens become a bit more complicated but it works.

    However, the resistance of the shunt is generally not a calibration parameter and will be the same for all boards of the same product. Fine-tuning can be done via calibration page afterwards if one wants to make the measurement more precise. so I would have expected to find this parameter on another tab.....

    Best regards,

    Jeroen