• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 34 subscribers
  • Views 639 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

High speed USB bridge

Valentin OZANNE
Prodigy 30 points

Hi,

 

I would like to known if it is possible to create a high speed USB bridge by using two TUSB6020 “USB 2.0 HIGH-SPEED ON-THE-GO DUAL-ROLE” controllers.

The goal is to build a USB bridge that acts as a USB device on one side and has a USB host controller at the other end. (The final idea is to insert a long optical fiber stage in the middle).

Here is the application I mean :

USB Host <- - - -> TUSB6020<- - - (TI VLYNQ 2.0 Interface)----> TUSB6020<- - - -> USB Device

 

So, I would like to know if either TUSB6020 can establish peer to peer VLYNQ communication or if I also have to use a microcontroller and establish the fiber communication between the two microcontrollers.

 

Thank you,

 

Valentin

  • 0
    TI__Intellectual 2995 points

    Valentin,

    Unfortunately the TUSB6020 cannot act as a peer to peer VLYNQ connection, it only has VLYNQ slave capabilities.  You would need a TI micro controller to be the VLYNQ host.

    You would need to implement something like this:

    USB Host <--->TUSB6020<--->TI Processor with VLYNQ<------>(Optical connection)<----->TI Processor with VLYNQ<---->TUSB6020<---->USB Device

    It looks like you are trying to have a USB device a long way from the USB host, is this your goal?  If so, how far do you need to run the USB and in what environment?  You may want to consider 1394 or even consider USB3.  If either of these interests you I can help point you in the right direction.

  • 0 in reply to Wes Ray
    Prodigy 30 points

    I thank you very much for your answer. In fact, I am searching for an interesting application which can be used for a demonstration of a 150 Mb/s optical fiber system. So I though to this application. Do you think I am in a right direction?

     

    Thank you,

     

    Valentin

     

  • 0 in reply to Valentin OZANNE
    TI__Prodigy 510 points

    Valentin,

    You may consider the firewire approach used by Firecomms:

    http://www.firecomms.com/products-firewire.html

    They use the TI 1394B line of devices for peer-to-peer connections over fiber. The TI TSB83AA22C would be a good candidate for this configuration:

    http://focus.ti.com/docs/prod/folders/print/tsb83aa22c.html

    If you are not familiar with the TSB83AA22C, it is an OHCI compliant 1394 device that connects to the host(or target) via PCI and can operate up to 800Mb/s. The speed may need to be dropped to 400Mb/s depending on the distance. It is supported in the Microsoft OS and there is also a driver in the Linux community.

    Regards,

    DJ

     

  • 0 in reply to DJ Johnson
    Prodigy 30 points

    I thank you for your answers. I am studiying the differents approach.

     

    Regards,

    Valentin