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no edit summary
% or
% or
%
%
% to send a marker: (marker: a numeric value)
% to send a marker: (marker: a numeric value; Fs: sampling frequency device)
% buttonbox(marker)
% buttonbox(marker,Fs)
%
%
% or
% or
bb.StopBits = 1;
bb.StopBits = 1;
bb.Parity = 'none';
bb.Parity = 'none';
if nargin < 1
if nargin < 1
cmd = 'open';
cmd = 'open';
end
end
if nargin > 1
if nargin > 1 && isstruct(varargin{1})
% user overwrites default settings
% user overwrites default settings
flds = fields(varargin{1});
flds = fields(varargin{1});
end
end
if nargin==1 && isnumeric(cmd)
if nargin==1 && isnumeric(cmd)
error('Please also specify acquisition sampling frequency of device that receives the marker');
end
if nargin > 1 && isnumeric(cmd)
marker = cmd;
marker = cmd;
cmd = 'marker';
cmd = 'marker';
Fs = varargin{1};
end
end
case 'marker'
case 'marker'
fwrite(handle, uint8(marker));%IOPort('Write', handle, uint8(marker), 1); % last argument: blocking
fwrite(handle, uint8(marker));%IOPort('Write', handle, uint8(marker), 1); % last argument: blocking
WaitSecs(0.002);
WaitSecs(2/Fs);
fwrite(handle, uint8(0));%IOPort('Write', handle, uint8(0), 0); % last argument: blocking
fwrite(handle, uint8(0));%IOPort('Write', handle, uint8(0), 0); % last argument: blocking
return
return
end
end
end
end
end</syntaxhighlight>
end</syntaxhighlight>