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Thread: Problems with rights to DirectRT

  1. #1
    Join Date
    Jul 2008
    Posts
    1

    Problems with rights to DirectRT

    I am currently attempting to use DirectRT to present video stimuli while collecting gaze data with eye-tracking software (ASL 6000, Eyenal). In order to analyze the data, I need to send event markers from DirectRT, through the parallel port, to Eyenal. However, I cannot access the parallel port through DirectRT on my stimulus computer. My input file is functioning as needed, as I have run it from another computer with DirectRT and was able to send ttl signals to EEG equipment.

    I am using the stimulus computer as a Power User and I have full rights to the DirectRT folder on the C drive. When I attempt to run the TTL I/O test, I continue to get "LPT1:Error" (for LPT1, 2, and 3). When logged into the computer as an Administrator, instead of the Error message I get "888 (LPT1:378H)".

    Can anyone advise me as to how I get the appropriate rights/change the rights settings in order to write to the parallel port?

    Susan

  2. #2
    Join Date
    Nov 2005
    Posts
    3,309
    In some cases you may need admin rights (global) for certain system configurations in order that the TTL signals can be sent. I'll send a link to this thread to our hardware engineer so he can chime in if I'm wrong.

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