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Line 479: − + − + − + − + − + − + − cmd = 'open';+ − % user overwrites default settings+ − flds = fields(varargin{1});+ − for n = 1 : numel(flds)+ − se.(flds{n}) = varargin{1}.(flds{n});+ − end+ − case 'open'+ − addpath(genpath(se.PTBPath));+ − % get handle to serial device+ − handle = open_buttonbox(se.Device);+ − return+ − case 'close'+ − handle = varargin{1};+ − IOPort('close',handle);+ − return+ − case 'run'+ − % read incoming data+ − if isempty(old_hdl)+ − help serial_buttonbox_common+ − error('Buttonbox not yet initialized');+ − end+ − handle = old_hdl;+ − otherwise+ − fprintf('Unknown option %s\n',cmd);+ − return+ − + − % start polling for characters (indicating start of scan)+ − navailable = IOPort('BytesAvailable', handle);+ − if navailable+ − data = [];+ − while navailable+ − % read incoming data+ − [newdata, ~, err] = IOPort('Read', handle, 0, navailable);+ − if ~isempty(err), disp(err); end+ − data = [data newdata];+ − %pause(0.001); % if possible just add a small pause to not claim entire core+ − navailable = IOPort('BytesAvailable', handle);+ − end+ − if numel(data)>1+ − fprintf('\nReceived characters: %d\n',numel(data));+ − end+ − for n = 1 : numel(data)+ − + − fprintf('incoming: %d\t%s\n',data(n),char(data(n)));+ − end+ − end+ − + − + − function hdl = open_buttonbox(device)+ − % open handle to serial device (mini buttonbox)+ − try+ − hdl = IOPort('OpenSerialPort',device,['BaudRate=' num2str(se.BaudRate)]);+ − catch+ − if ~isempty(old_hdl)+ − IOPort('close',old_hdl);+ − end+ − hdl = IOPort('OpenSerialPort',device,['BaudRate=' num2str(se.BaudRate)]);+ − end+ − old_hdl = hdl;+ − + − fprintf('Wait for device buttonbox....\n');+ − tic+ − while ~IOPort('BytesAvailable', hdl) && toc<10+ − % wait for welcome message device+ − end+ − pause(0.5);+ + + + + + − % clear buffer − %IOPort('flush', hdl); − IOPort('purge', hdl); − end −
nowiki -> source
== Buttonbox in Python and PsychoPy ==
== Buttonbox in Python and PsychoPy ==
Example using the buttonbox in Python:
<nowiki>
Example using the buttonbox in Python:
<source lang="python>
#!/usr/bin/env python
#!/usr/bin/env python
# print the button pressed
# print the button pressed
print("b: {}".format(b))
print("b: {}".format(b))
</nowiki>
</source>
Using the Buttonbox in PsychoPy
Using the Buttonbox in PsychoPy:
<nowiki>
<source lang="python>
#!/usr/bin/env python
#!/usr/bin/env python
##Cleanup Section
##Cleanup Section
core.quit()
core.quit()
</source>
== Matlab Settings ==
== Matlab Settings ==
% to initialize connection:
% to initialize connection:
% handle = serial_buttonbox('open',se)
% handle = serial_buttonbox('open',se)
% settings (se):
% settings (se):
% define settings as a structure, i.e.:
% define settings as a structure, i.e.:
% se.Device = 'COM1';
% se.Device = 'COM1';
% se.BaudRate = 115200;
% se.BaudRate = 115200;
% se.DataBits = 8;
% se.DataBits = 8;
% se.StopBits = 1;
% se.StopBits = 1;
% se.Parity = 0;
% se.Parity = 0;
% se.PTBPath = 'c:\MyToolboxes\PsychToolbox'
% se.PTBPath = 'c:\MyToolboxes\PsychToolbox'
%
%
% to close the connection:
% to close the connection:
% set defaults
% set defaults
se.Device = 'COM1';
se.Device = 'COM1';
se.BaudRate = 115200;
se.BaudRate = 115200;
se.DataBits = 8;
se.DataBits = 8;
se.StopBits = 1;
se.StopBits = 1;
se.Parity = 0;
se.Parity = 0;
se.PTBPath = 'c:\Pgrogram Files\PsychToolbox';
se.PTBPath = 'c:\Pgrogram Files\PsychToolbox';
if nargin < 1
if nargin < 1
cmd = 'open';
end
end
if nargin > 1
if nargin > 1
% user overwrites default settings
flds = fields(varargin{1});
for n = 1 : numel(flds)
se.(flds{n}) = varargin{1}.(flds{n});
end
end
end
switch cmd
switch cmd
case 'open'
addpath(genpath(se.PTBPath));
% get handle to serial device
handle = open_buttonbox(se.Device);
return
case 'close'
handle = varargin{1};
IOPort('close',handle);
return
case 'run'
% read incoming data
if isempty(old_hdl)
help serial_buttonbox_common
error('Buttonbox not yet initialized');
end
handle = old_hdl;
otherwise
fprintf('Unknown option %s\n',cmd);
return
end
end
% only gets here when cmd = 'run'
% only gets here when cmd = 'run'
while 1
while 1
% start polling for characters (indicating start of scan)
navailable = IOPort('BytesAvailable', handle);
if navailable
data = [];
while navailable
% read incoming data
[newdata, ~, err] = IOPort('Read', handle, 0, navailable);
if ~isempty(err), disp(err); end
data = [data newdata];
%pause(0.001); % if possible just add a small pause to not claim entire core
navailable = IOPort('BytesAvailable', handle);
end
if numel(data)>1
fprintf('\nReceived characters: %d\n',numel(data));
end
for n = 1 : numel(data)
% disp(char(data(n)));
% disp(char(data(n)));
fprintf('incoming: %d\t%s\n',data(n),char(data(n)));
end
end
end %while 1
end %while 1
function hdl = open_buttonbox(device)
% open handle to serial device (mini buttonbox)
try
hdl = IOPort('OpenSerialPort',device,['BaudRate=' num2str(se.BaudRate)]);
catch
if ~isempty(old_hdl)
IOPort('close',old_hdl);
end
hdl = IOPort('OpenSerialPort',device,['BaudRate=' num2str(se.BaudRate)]);
end
old_hdl = hdl;
fprintf('Wait for device buttonbox....\n');
tic
while ~IOPort('BytesAvailable', hdl) && toc<10
% wait for welcome message device
end
pause(0.5);
% clear buffer
%IOPort('flush', hdl);
IOPort('purge', hdl);
end
end</nowiki>
end</nowiki>