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bqStudio display mess

Lankor Liu99
Intellectual 300 points
Other Parts Discussed in Thread: BQ40Z60, BQSTUDIO

Hi,

I just got bq40Z60 EVM and EV2300,  also installed the bqStudio. Everything looks fine, but only the Registers display info seems mess.  The info are squeezed sticking together, it is not allowed me to adjust the display width. It is not convenient for me to read the registers' content. Is there anyway to fix it?Can anyonw help?

Thanks   

L.

  • 0
    TI__Guru 73830 points
    Try reducing the font. Go to Windows >> Preferences >> Registers - Font
  • 0 in reply to ThomasCosby
    Intellectual 300 points
    Thanks Thomas! It works.

    Another question: I connected EV2300 to my own bq40Z60 board, seems not charging. I did not use the external thermistors(TS1-TS4) and disble all of them, but the bqStudio reports the temp -273.2 deg C. Possibly this low temp causes not charging. How to solve it? Thanks.

    Lankor
  • 0 in reply to Lankor Liu99
    TI__Guru 73830 points

    You can set the Temperature Enable register to 01 and the Temperature Mode register to 00. They are in the Configurations section under Settings in the Data Memory.

  • 0 in reply to ThomasCosby
    Intellectual 300 points
    Hi, Thomas,

    Thanks for your info. I changed the TempEN register=01, TempMode=00, then it can charge for seconds(I can see the current increasing from external DC+15V), then back to normal. I checked it and looks the bq40z60 IC itself temperature is little big high(shows 57 deg C ), I can feel IC is warm. As long as I touch it and its temp reduces then charging starts again.

    What causes the bq40z60 IC itself hot? The PCB size of my board is much smaller than bq40z60 EVM board on which I can feel hot when touching it. Thanks.
  • 0 in reply to Lankor Liu99
    TI__Guru 73830 points

    The device drives the charger FETs at 1MHz, so the AC switching losses driving gates of the FETs will induce heat. The thermal tab on, the bottom of the package, transfers heat to copper on the PCB. The amount over copper available to conduct heat will impact how hot the device gets.