Switching two USB pheriperals

Discussion in 'The Projects Forum' started by upulpp, Jul 17, 2009.

  1. upulpp

    Thread Starter New Member

    Jul 17, 2009
    3
    0
    I need to switch between two USB devices in my PIC project.
    I have two option to do that:
    1. Using a DPDT switch​
    2. Use tri-state buffers and soft switch​

    I like the second option because it reduces no. of switches in my project.
    But I have some doubts about whether its practically possible or not:confused:
    Need expert help...
    Or any suggestions?

    Thank you.
     
  2. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    1,758
    98
    Question:

    What are the USB devices? Are you trying to use the PIC as a USB Host?
     
  3. upulpp

    Thread Starter New Member

    Jul 17, 2009
    3
    0
    I'm using VNC1l USB host controller.
    devices will be a printer and a pen drive. :)
     
  4. GetDeviceInfo

    Senior Member

    Jun 7, 2009
    1,571
    230
    are you hoping to keep both devices alive at the same time? I don't think that it's mandatory for a device to support sleep modes, which is implied if your removing the SOF marker. Why not implement a hub?
     
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