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Thread: Parallelport interfacing in Direct RT

  1. #1
    Join Date
    Aug 2006
    Posts
    1

    Parallelport interfacing in Direct RT

    How do I interface the parallelport in Direct RT?

    I've got some external hardware that sends TTL signals to the parallellport.

    Using the TTL I/O test program at port 889 I get these codes:

    Button code
    1 8
    2 16
    3 32
    4 64

    When running the attached experiment it stops and it seems it doesn't get any input from the parallelport. Have you got any ideas?

    Any feedback will be appreciated!
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  2. #2
    Join Date
    Nov 2005
    Posts
    3,328
    I think it's probably because the first trial has no visual stimulus. Try the attached revision and see if that fixes it.
    Attached Files Attached Files

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