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TPS65988EVM: USB HUB

Don Pitchford
Intellectual 255 points

Part Number: TPS65988EVM

My basic setup is to use the 2 USB C port on the TPS65988EVM to act like a hub.  I am flashing the board using the App Tool TPS65981_2_6_7_8 (v 6.1.1).

What I am trying to achieve is to create communication and power path between two USB C ports.  I have PC plugged into port 1 and Android Phone plugged into port 2.    I have tried self power & external power using power source.  

Example:

PC --> USB-C (port 1) -->  TPS65988EVM --> USB-C (port-2) --> Android Phone

I can't get the PC to see the phone or get the phone to charge from the port. 

I tried flashing all the standard project and don't see it working as I would expect.   Is this configuration possible with this board?

  • +1
    TI__Mastermind 30000 points

    Hello,

    It is not possible to transfer data from one Type-C port to the other on this EVM. However, you should be able to provide power. 

    What is the voltage of the external power supply you are providing to SYS_PWR? Also, would you be able to share your project file that you have flashed to the EVM? 

  • 0
    Intellectual 255 points

    Thank you for the answer.    I will move on from this vector.  I was hoping it would be a solution to a problem I am having.    I am building a power monitor for usb-c tester and my current solution works great, but the polarity of the USB-C cable doesn't work in certain cases.   I am using USB-C receptacle to USB-C receptacle and wanted something that would allow for supporting flipping the cable.  But this is not it.  

    Will try other approaches.