CheckPort - Meg Wiki

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location: CheckPort

You can include this bit of code in your PsychToolbox script to make sure you have selected the right port of the stimulus PC: 

function memento(MEG)
% Very simple script to check whether the correct port is selected
%
% memento must pre preceded by the MEGSynchClass constructor
% e.g.
% MEG  =  MEGSynchClass;
% memento(MEG)
%
%alessandro.tomassini@mrc-cbu.cam.ac.uk


try   
 MEG.WaitForButtonPress(0.0001)
 strcmp(MEG.LastButtonPress',MEG.LastButtonPress);
catch
    h=warndlg('Check if NI CARD is selected!');
    uiwait(h);
end
end