Problem with TTL, Parallel Port, I/O test (case 1098)

[gtbarradas]

Hi,

I'm working with Patrik Juslin's Music and Emotion research team. We are currently trying to send a trigger to the BIOPAC system from MediaLab when a piece of music starts playing. We send the trigger to BIOPAC MP150 via UIM100C. To try the I/O test, we followed the instructions of Media Lab. When everything was connected and we opened the IO test page, "LPT1:error", "LPT2:error", and "LPT3:error" showed. We also tried entering "888", but it didn't work. We are using MediaLab 2010 on Windows 7, 64 bit version. We tried to use this parameter (d3, <128:888:3000), but obtained no response from the computer running BIOPAC. We are using VScom LPT Class (LPT3) card on both computers. The drivers are updated. The hardware information tells us that LPT3 is being used, but we still get the "LTP3: error" message. In BIOPAC, we followed the instructions on how to connect the Printer Port setup ribbon cable, but the program still receives no trigger. It would appear that there is no signal sent out from MediaLab through the port. We would be very grateful if you could help us out with this matter and, if possible, send us a step-by-step guide to solve the problem.

Best regards,
Goncalo