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LightCrafter USB/RNDIS connection issues

Inco Gnito
Prodigy 20 points

I've been trying to use a Thinkpad T60p running Windows XP Pro SP3 to connect to Lightcrafter via RNDIS without success.  Although at first the device was not recognized (contrary to the user manual's claim that the drivers come with XP SP2), after automatically downloading the RNDIS driver (Acer v.1.0.0.0 1/13/2010), an RNDIS Gadget was recognized and driver successfully installed.  However, the resulting RNDIS network is nonfunctional as it cannot obtain a network address.  I've tried to disable DHCP and specify a TCP/IP configuration manually: IP 192.168.0.99, Subnet: 255.255.255.0, Gateway 192.168.0.1, again with no success - the LightCrafter GUI does not connect.  Also, my attempts to ping the default 192.168.0.100 address timed out. Does the network need to be manually configured, or is the embedded Linux running a DHCP server?  If it needs to be manually configured, what are the correct network parameters to use? 

Having given up on the Thinkpad, I tried to get the thing connected to an HP Z400 workstation running a clean 64-bit Windows 7 OS, following the instructions in the user manual.  This resulted in a Code 10 error that others have complained about.  This time, however, the installed driver was a Microsoft driver, version 6.1.7600.16385 6/21/2006.  What driver has this board been tested with?  Acer? Microsoft?  Is there another version out there?

Does anyone have suggestions on how I can get this device to work? It seems that others have it working so I must be doing something stupid.  However as it stands so far, as impressive as it is my evaluation of this evaluation module has been 0 for 2.

Thanks,

Dan

  • 0
    TI__Expert 4500 points

    Hi Dan,

    I appreciate your efforts and please understand that we are trying to fix this issue. LightCrafter uses a fixed IP address, 192.168.1.100 as mentioned in the "DLP® LightCrafter™ User's Guide" available here. I would suggest you to connect a USB hub in between the LightCrafter and PC. This is a workaround for this issue.Please check if it enumerates this connection as shown below (System->Hardware->Device Manager)

    Also, for the code10 error, please refer to this link.  Hope this helps.

  • 0 in reply to Divya Reddy
    Prodigy 20 points

    Divya,

    Thanks for the reply.  I didn't have a USB hub handy, but I tried connecting via a PCMCIA card with USB and IEEE1394 ports and the connection was established right away (using the Acer RNDIS driver).  To answer my own question, I did not need to enter any TCP/IP settings manually, so DHCP is running on the embedded Linux system.  There seems to be some incompatibility between the Thinkpad's internal USB controller/hub and the RNDIS communication (I tried with the firewall off so it's not a port blocking issue).   The 64-bit Win7 server also was incompatible, but in a different way - it used the Microsoft RNDIS driver (as opposed to Acer) and returned a Code 10 error.  The Thinkpad  did not have a Code 10 issue - the RNDIS gadget enumerated fine, but the PC couldn't get an IP address.  The PCMCIA card fixed this.  I hope this info helps someone.  I can use the device and am happy for now.

    On an unrelated note, has anyone figured out a way to talk to LIghtCrafter via Matlab or Labview (I'm lazy and hoping to avoid having to write my own DLL wrapper)?

    Thanks,

    Dan

  • 0 in reply to Inco Gnito
    TI__Expert 4500 points

    Dan,

    Thanks for the information you have provided. It does help in debugging the issue.

    We have tried communicating through API commands using Perl software and also implemented DM365 command interfaces to interact with LightCrafter. Please follow the link here for update on the availability of sample code. Can you provide information on your end application, so I can help you further.

    Regards,

    Divya

  • 0 in reply to Divya Reddy
    Prodigy 125 points

    Hello Divya

    I have a problem with DLP connection to GUI via USB. First time, I did all essential steps to install RNDIS driver according to tutorial, but now something unusual occurs, each time after powering ON the DLP lightcrafter and connecting USB to PC, my GUI v.5.0.0 can't establish the connection whereas it should happen only for the first time connection,

    so I follow this way each time:

    control panel, device manager, network adapters, right click on Remote NDIS device and uninstall it ,unplug USB, connect USB again, install RNDIS again and  now GUI connects!

    and ever sometimes "Not responding" occurs and I must close the program and run the GUI again and press connect.

    Could you please help me about the problem?

    Thank you so much in advance,

    Best Regards,

    Sheida