Is BCI2000 possible to synchronize two of this devices in NIDAQ_mx_Source?

This forum deals with BCI2000 configuration issues.
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tinui
Posts: 16
Joined: 14 May 2015, 02:11

Is BCI2000 possible to synchronize two of this devices in NIDAQ_mx_Source?

Post by tinui » 15 May 2015, 02:40

Hi everybody,

I recently begin to use BCI2000 with NI USB-6008.
This A/D device can input 8 channel, but I would like to be able to use 16 channels.
Is BCI2000 possible to synchronize two of this devices in NIDAQ_mx_Source?
Tell me how to configuration, If it is possible.

Thank you very much for your help.

pbrunner
Posts: 344
Joined: 17 Sep 2010, 12:43

Re: Is BCI2000 possible to synchronize two of this devices in NIDAQ_mx_Source?

Post by pbrunner » 15 May 2015, 15:51

Tinui,

the NIDAQ_mx_Source is written such that it can only acquire from a single NI DAQ device. Thus you will not be able to use this source module to acquire data from multiple NI DAQ devices at the same time.

That being said, the underlying NI-DAQmx SDK allows to acquire data from multiple synchronize cards. If you have some programming skills, you could modify the source module to use this functionality. If you chose to do that, you would need to add the code to logically combine the two boards. This is necessary to ensure that both boards return the data at the same time through only one call back function.

However, depending on how much you value your time, it might be more cost effective to just get a 16 channel USB national instruments board.

Regards, Peter

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