[FieldTrip] real time EEG

[Jörn M. Horschig]

Dear Vahid,

Generally, I would propose that you start by reading on the wiki about the different implementations:
http://fieldtrip.fcdonders.nl/development/realtime/buffer_overview
most relevant by this this site:
http://fieldtrip.fcdonders.nl/development/realtime/implementation

What FieldTrip provides is basically an interface for streaming data. You need to set up a shared memory segment that your data acquisition software writes to and that some other client accesses. That other client opens an IP socket, and you can get access from any programme, e.g. Matlab, to the streamed data. That other client (or interface as called in the wiki) probably needs to be tailored to your acquisition software, or in your case it should read out the data coming in at the serial port. You might need to write this interface yourself.

Good luck!
Jörn

--

Jörn M. Horschig, Software Engineer
Artinis Medical Systems  |  +31 481 350 980 

> -----Original Message-----
> From: fieldtrip-bounces at science.ru.nl [mailto:fieldtrip-
> bounces at science.ru.nl] On Behalf Of Philipp Taesler
> Sent: Thursday, February 5, 2015 3:39 PM
> To: fieldtrip at science.ru.nl
> Subject: Re: [FieldTrip] real time EEG
> 
> Hello Vahid,
> 
> I have not worked with real-time much, also I've never read EEG data over
> RS232, but you might want to look at the
> 
> ft_realtime_signalproxy.m
> 
> function. Apparently it is just generating random data, you can see this in line
> 114. Here you would have to splice in your RS232 data somehow, maybe you
> can get a hint getting started here
> 
> http://de.mathworks.com/help/matlab/matlab_external/getting-started-
> with-serial-i-o.html
> 
> Maybe you will also get some more help from someone who has actually
> worked with something closer to your setup.
> 
> Best regards and happy hacking,
> Phil
> 
> 
> 
> Am 05.02.2015 um 15:16 schrieb vahid gerami:
> > hello
> > im new at fieldtrip. i want to record EEG signals as realtime using my
> > own BCI interface connected to a laptob via RS232.ive found
> > ft_realtime_oddball(cfg) for real time signal acquisition. i have
> > problem configuring the function. i dont know the correct configuration.
> > please help me about the cfg parameters. my bci send continues data at
> > 9220 byte and 115200 baudrate 8 bit no parity.
> > regards
> >
> > ----------------------------------------------------------------------
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> >
> > Universitätsklinikum Hamburg-Eppendorf; Körperschaft des öffentlichen
> > Rechts; Gerichtsstand: Hamburg | www.uke.de <http://www.uke.de>
> > Vorstandsmitglieder: Prof. Dr. Burkhard Göke (Vorsitzender), Prof. Dr.
> > Dr. Uwe Koch-Gromus, Joachim Prölß, Rainer Schoppik
> >
> > ----------------------------------------------------------------------
> > --
> >
> > SAVE PAPER - THINK BEFORE PRINTING
> >
> 
> --
> Philipp Taesler, MSc.
> Department of Systems Neuroscience
> University Medical Center Hamburg-Eppendorf Martinistr. 52, W34, 20248
> Hamburg, Germany
> 
> Phone: +49-40-7410-59902
> Fax:   +49-40-7410-59955
> Email: p.taesler at uke.uni-hamburg.de
> --
> 
> __________________________________________________________
> ___________
> 
> Universitätsklinikum Hamburg-Eppendorf; Körperschaft des öffentlichen
> Rechts; Gerichtsstand: Hamburg | www.uke.de
> Vorstandsmitglieder: Prof. Dr. Burkhard Göke (Vorsitzender), Prof. Dr. Dr.
> Uwe Koch-Gromus, Joachim Prölß, Rainer Schoppik
> __________________________________________________________
> ___________
> 
> SAVE PAPER - THINK BEFORE PRINTING
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