Millisecond Forums

Hmm, since you posted the exact same question a while ago at http://www.millisecond.com/forums/Topic4953.aspx#4953 and nobody replied, I guess the answer is "No".

Regards,

~Dave

I guess you are right.

With Inquisit, would it be possible to send messages via Ethernet? Or are serial and parallel ports the only options for communication with other devices?

regards, Hendrik

Unfortunately Inquisit currently cannot communicate with external equipment via Ethernet. TTL via parallel or serial ports is the only option right now.

Hope this helps,

~Dave

Hendrik,

It appears SMI RED has an optional port for TTL I/O. If your eye tracker has that port, than you can program Inquisit to send TTL signals from the parallel port of the computer to the TTL port on the eye tracker. See the following topics for info:

http://www.millisecond.com/support/docs/v3/html/howto/howtosendport.htm
http://www.millisecond.com/support/docs/v3/html/howto/howtoportmonitor.htm

If not, the SMI also has a serial port interface. Inquisit can send also send bytes to the serial port, so that might be another option for sending markers.See the help for the port element:
http://www.millisecond.com/support/docs/v3/html/language/elements/port.htm

Unfortunately, there is no way for Inquisit to receive gaze point data from an SMI eye tracker at this time.

Regards,
Sean

Thanks.

TTL I/O is the only option that might work because it is not possible to map 8 bit signals from the serial
port to commands in iView X. The serial port connection to iView X is meant to
carry text messages.

I'll further discuss it with the SMI people and will post a message on the forum with the outcome.

Dear Rikkie,

I am trying to connect Inquisit with my SMI eye-tracker (RED250). Have you had any success in using Inquisit with the SMI eye-tracker?

What I want is to simply display the images using Inquisit and send signals from Inquisit to SMI eye-tracker to start and end recording of trials.

I would greatly appreciate any comments on this.

Thanks so much,

Hanjlee

Given
the defined lines of communication, a cross-over cable is needed to connect the
parallel port output pins of the Inquisit PC to the appropriate parallel port input
pins of the iView X Eye tracker PC. Here’s a configuration based on a parallel LapLink cable:

It is imperative
each end of the cable be labeled with the computer to which it is to be
attached. Reversing the connection will cause a failure to communicate.

Define
parallel output from the Inquisit PC as per examples provided by Inquisit.
Configure parallel port trigger inputs to the Eye Tracker PC as described in
the iView X manual.  

Pat Reilly