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Problems connecting two TPIs to one PC

MorgoZMorgoZ Posts: 116
in AMX General Discussion
Hello!

We are using two TPI-PRO 4 connected to some devices and to one PC to be controlled through "pass-thru" from both TPIs. And each TPI is connected to an ELO touch pannel.

So the diagram is:
Two ELO TPs connected each to one TPI-PRO4 and, from each TPI, an USB "pass-thru" output connected to one PC, so the PC would have two USB inputs connected to it (one form each TPI output).

The problem is that, when we connect both USB to the PC (Windows XP), a controller error is shown talking about a driver conflict, and we can make "pass-thru" from just one TP, not from both.

Has someone connected two TPIs to one PC like this, before? Should it work? Do you know why is it not working for us?

Many thanks in advance!!
Salutes!!

Comments

  • Marc ScheibeinMarc Scheibein Posts: 882
    Never done it this way...

    But thinking about a Win XP PC with 2 identical Mice and 2 identical keyboards connected by USB the same time.... hm....
  • [Deleted User][Deleted User] Posts: 0
    Just for grins, can you try this setup w/o the ELO attached? For example, disconnect ALL devices from the TPI - leaving just the 2 TPI's and the PC connected. Power up TPI one. Let Windows see the composite device. Power up TPI 2. Do you still get the controller error?

    Also, are ANY devices showing up from the second PC. Each TPI should report back the number of devices plugged into the TPI + 1 composite device that is used in non PPS commands.

    The first device (or 1st endpoint) is the composite device, which consists of a touch endpoint, a mouse, and a keyboard endpoint. The remaining devices should mimic what is plugged into the TPI.

    We used a tool called usbview (I think) which was a handy little application that would enumerate what device was where on each USB bus. It was quite handy for debugging things like this. You'll have to google for it.

    I'm assuming each TPI works by itself, and that the problem is only when both are connected simultaneously.
  • MorgoZMorgoZ Posts: 116
    Finally we have solved the problem plugging each TPI to different USB controllers. The problem was that the driver conflict only happened when each TPI were connected to a different port of the same controller, but if they were connected to different controllers, it seems to work correctly.

    Many thanks to all!!
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