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USB-TO-GPIO: settings for USB-TO-GPIO adapter

Neo.Wang
Intellectual 880 points

Part Number: USB-TO-GPIO

  • 0
    Intellectual 880 points

    Hi TI experts,

    I will use the TI fusion GUI + USB-TO-GPIO adapter to do programming for TPS53659/TPS40422 controllers. A few questions regarding the USB-to-GPIO adapter settings.

    1. There are advanced 3.3V on board to pull up the I2C bus, so do i need to set the adapter internal pull-up as NULL?

    2. Can i set Pmbus speed to 100kHz?

    3. Do we need to change the state of any of the control lines?

    Thanks.

  • 0 in reply to Neo.Wang
    TI__Genius 11095 points

    1- Yes, you can set the internal pullup to Open. If not, it may not be a problem, there will just be a divider between your pullup voltage and the 3.3v in the adapter itself. 

    2- Yes, you can set the pmbus speed to 100kHz. 

    3- No. The Control lines are IOs which can be used for Enable pins etc... but if you're not connecting them on your board, they are "don't care."

  • 0 in reply to Matt Schurmann
    Intellectual 880 points

    Thanks Matt for response.