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Andy
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RB-830 with Inquisit, Posted March 7th, 2008 #1
Hi

I've got a problem using my cedrus response box (rb830) with Inquisit3. I installed the driver from the homepage and now wanted to test it. I used the seriell port monitor (implemented in Inquisit 3) to check whether I receive correct signals from the response box and I get them only for 6 of 8 keys. The keys top left and top right don't send signals (probabely they should send the scancodes 64 and 128 - because the others send 1, 2, 4, 8, 16 and 32).
First I thought that there is something damaged in my box, but meanwhile I tested seven different boxes and I get the same problem for all of them.

I found another interesting fact. I used the command "/inputdevice = xid1" instead of "inputdevice=com1", changed the positions of the DIP switches appropriately and then checked the box with the port monitor again. Now all keys sent signals (so the two keys are probabely not damaged) but I got the same signal from all eight keys.

Could the drivers be responsible for that, or does anybody else have an idea what's happening?

Best,

Andy

p.s. I set the baud rate to 9600 and I put the DIP switches 1,2,3 upward as described in the instructions (http://www.cedrus.com/support/rb_ser...p_switches.htm)

p.p.s. I encounter the same problem using Inquisit2, too
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Hisham
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Posted March 11th, 2008 #2
Hi Andy,

I've never used Inquisit, so I can't be of much help with that. However, you can use a demo of SuperLab 4.0 to determine if the problem is with the response pad itself or the drivers, or if it's with the Inquisit settings.

Once you've downloaded the demo, install it and run it. On the response pad itself, make sure all four DIP switches are down. Keep in mind that the response pad "reads" the switch settings only when it's first powered up; so every time you change a switch position, you need to unplug the USB cable, wait a couple of seconds, then re-plug it.

Then, in SuperLab 4.0:
  • Chose Participant Input from the Experiment menu. The Participant Input dialog will appear.
  • Click on the blue checkbox to the left of RB-x30 Series Response Pad to select it.
  • Click on the Setup tab.
  • Click on the Auto Detect button.

If SuperLab finds the response pad, then the issue you're having is on the Inquisit side; you need to contact them for assistance. If SuperLab does not find the response pad, let me know and we'll take it from there.

I hope this helps.

Hisham.
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Andy
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Posted March 19th, 2008 #3
Hi Hisham,

thank you very much for your answer. You were right - Superlab is able to find the response pad. So this seems to be alright. Is there also a possibility to check each single key of the response pad (whether or not it is working correctly)?

All the best,

Andy
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Hisham
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RB-830 Test Experiment, Posted March 19th, 2008 #4
Hi Andy,

I've attached a sample experiment. It gives you up to 5 seconds to respond to each key and will provide some feedback.

Hisham.
Attached Files
File Type: sl4 Test RB-830 input.sl4 (9.4 KB, 7 views)
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Andy
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Posted March 20th, 2008 #5
Hi Hisham,

thanks a lot for the test script. I tried it out and everything seems to be alright with the response boxes themselves. So my problem might be due to a problem with Inquisit anyway.
I'll check into this.

Thanks,

Andy
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Andy
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Posted March 21st, 2008 #6
Hi Hisham,

I got another short question concerning my problem with Inquisit.
In Inquisit I only get a reaction from my response pad on a press and not on a release of the top right key. For all other keys I get correct key release signals. Does the script you sent me check the releases, too?

If not, could you please send me another short test script that also tests the correct functioning of the key releases? Unfortunately I am not able to programm SuperLab on my own. I would need such a test script to decide whether my boxes are damaged or there's a problem with Inquisit.

Thanks in advance,

Andy
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Hisham
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Posted March 25th, 2008 #7
Hi Andy,

Is your response pad in ASCII mode? All the other modes would be able to detect a key release, but not ASCII mode. See this comparison of the various pros and cons. I've never seen a case where a faulty response pad would recognize a key press but not a key release.

Hisham.
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Andy
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Posted March 31st, 2008 #8
Hi Hisham,

sorry for my late resonse. My response boxes are all in the xid-mode.
Do you have any other idea what the reason for the problem might be or what I could try to solve the problem?

Best,

Andy
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Hisham
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Posted March 31st, 2008 #9
Hi Andy,

A loaner RB-830 is going to Millisecond Software tomorrow. Hopefully Sean will be able to figure out the Inquisit problem quickly.

Hisham.
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Andy
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Posted April 1st, 2008 #10
Hi Hisham,

wow, that's great. Thank you so much for all your efforts.
I'll let you know if Sean was able to find a solution for my problem.


All the best,

Andy
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