BioSemi.nl

There was a participant in the experiments today and we were not able to set the common/ground (the blue light on the box) to work. Even though, when I touched the electrodes, common/ground was set (the blue light) but not for him. This was both on the EEG and separated CMS/DRL electrodes.

What is ...

I am using fieldtrip application from donders institute to acquire data, but I also have no data in je JAZZ eyetracker channels, while the other channels are fine.

Is there an enable bit flag somewhere to enable the online acquisition of the JAZZ eyetracker data through the API?

Can you please answer the previous post question, which boils down to: Which value(s) to regard as a current GSR value, during the 16Hz excitation current half-wave?

So since we can get a new GSR data every half-wave of 16 Hz excitation current, that means the sampling rate is 32 Hz.

Then from the values posted above:

Sync: -256 gv: 4666uS
Sync: -256 gv: 4937uS
Sync: -256 gv: 5358uS
Sync: -256 gv: 5612uS
Sync: -256 gv: 5600uS
Sync: -256 gv: 5533uS
Sync: -256 ...

Can you please help us in decoding the .vi GSR object to get the real GSR value in correct voltage measure. I'm afraid we are a bit unexperianced with LabView, but we can write regular code.
Picture is related. Its GSR object from LabView

What we have are the values pasted in the above post, and we ...

Hi.

Is there a way of manually sending a trigger event through software/port/socket/dll (running on the same machine as ActiveView) with comment and such.
I am interested if there is a way to save an event marker without going through an BioSemi USB receiver to trigger and event.

//Petar

Apart from the questions I asked, can you provide me with the information: Can we measure PUPIL DILATION with the Jazz eyetracker.

//Petar

Hi.
We purchased the Jazz eyetracker and got it to work with the BioSemi system without a problem, great work.

I acquired a small manual from the Neurospec, but is there a more extensive manual on participant/hardware setup, measuring, best practices, ... or such?
Also, since ActiveView just ...

Can you please direct me on how to see the "ActiView source code". I have "ActiView605-Laptop.vi" but how do you read the actual source code from this?

Or if you or someone who has the code, can post the code snippet regarding calculation of GSR values.

I have a BioSemi Active Two Mk2 box (checked against serial key) and 16 Hz excitation current (check by GSR unit displayed in ActiView).
I together with a colegue we wrote an acquisition program for GSR values. Can you help me decipher what is going on with my values from the ringbuffer please ...

Tnx, I did exactly that.
But i have MS Visual Studio 2008 Professional Edition so there should be no problem there.

I successfully ran the program and didn't receive any error.

Now I have to get the GSR data and analyze it to use it in the game. Please can you point me in this direction (post ...

OK, I forgot to mention my system is Windows7 64bit, and as such I downloaded the Win7 64bit version of the drivers, and they couldn't compile no matter how much I tried.
Then I downloaded 32bit version and voila, it compiled like a charm.

Has anybody had the same problem? Seams like a problem in ...

Thank you for the help.

Yeah, the ".h" part gets cut of constantly, but I got it.
The thing is, I tried all of the steps stated in your last post but i still couldn't compile. So I asked my very good programming friend and he couldn't do it too, like ".lib" doesn't have all the function definitions ...

OK, so let's start from the scratch.
I have dynamic library labview_dll (.h, .lib, .dll), how do I write the first example program with it in C or C++.
Can you please help me with this, small example or tutorial.

[quote="pmac"]Happ,

It looks like the linker doesn't have the labview_dll.dll file.
Do you include it explicitly as a library to be searched?

Paul[/quote]


I have been at this for a while now and I keep getting the same error message over and over again, does anybody know how to do this in Visual ...

The [b]Labview_DLL_SyncTest.exe[/b] works withouth the problem as long as I don't stop it, so I guess I'm good on driver point.
I will try to fix my code a little bit regarding dll inclusion and check this in detail.

OK, I found header, lib and dll, wrote this simple example, but am I forgetting something here o_O
It doesn't want to compile and whines about:
error LNK2019: unresolved external symbol __imp__OPEN_DRIVER_ASYNC referenced in function _main
fatal error LNK1120: 1 unresolved externals

[code]
#include ...

lol, I haven't seen this there. Damn, I'll try this instead since this way I have definitions of the functions.

I reproduced the example of synchronized program that we get when downloading Win64 USB drivers. But when calling the usb_write method I get error "usb_write for enable handshake trouble 6"
[code]
nStatus = usbwrite(usbHandle, &usbdata[0]);
if (nStatus == FALSE) {
// ERROR
printf ("usb_write for ...

Please if you can help me with this.
I just patched Biosemi to my laptop, installed drivers and downloaded ActiView604-Light, but there is only [b]Labview_dll.dll[/b] withouth header .h or library .lib
So I have written dynamic dll loading, please tell me if I'm doing something wrong here.

[code ...