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BQ24192: USB-to-GPIO interface adapter needed for EVM?

Part Number: BQ24192

Good morning team,

I have a question about the BQ24192EVM-021 board. My customer is trying to read/write to the registers via the USB-mini port, but it doesn't seem to recognize the device. 

They've read through the user manual and noticed a separate USB-to-GPIO interface adapter (HPA172) that connects to J3. Is this adapter the only way to communicate with the registers?

Thank you for your support!


  • Hi Errol,

    The USB port (J7) is for providing power only.  The BQ24192 communicates with a host through I2C.  A USB-to-GPIO box at J3 connects to the chargers SDA and SCL pins and allows the use of the BQ24192 GUI software.  Alternatively, your customer can connect a host processor/controller directly to the SDA, SCL pins for communication.