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Dear Josh: According to the specs it should indeed be possible (although we blew up the control unit when we tried it, and never did get it to work). However, a better approach would be to write a new ASL software driver specifically for the MotionStar. This is because one has to disable the high-speed interface and thus all other cards in the MotionStar in order to use one of the cards with a low-speed serial interface. This effectively disables the MotionStar (which supports as many as 20 trackers). It should not be very hard to develop such device driver, I have the source code for the MotionStar API and can probably forward it to you. Please contact Ascension, they'll be more than happy to provide the code as well. I appreciate your efforts towards resolving this issue. --- Professor Roel Vertegaal :: hum@n medi@ l@b :: Queen's University Kingston, Canada K7L3N6 Tel (613) 533-3070 Web http://www.hml.queensu.ca > > There have been several requests for information about using the Ascension > MotionStar tracking device for head tracking, in conjunction with ASL eye > trackers. I believe that this can be done so long as the MotionStar is > configured for RS232, as opposed to Ethernet, communication. I have a > dialog in progress with the technical support people at Ascension, and do > intend to post more about this as soon as I've confirmed the details. -- EYE-MOVEMENT mailing list ([log in to unmask]) N.B. Replies are sent to the list, not the sender To unsubscribe, etc. see http://www.jiscmail.ac.uk/files/eye-movement/introduction.html Other queries to list owner at [log in to unmask]