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TimerFcn in gui from one function to another

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Cait
Cait 2012-7-16
I have a gui that interfaces with some TDT software to play out electrical stimuli. I want to have an intertrial interval using a timer between trials. Essentially the timer is called at the end of a function and the TimerFcn is to call a different function.
So far, I have gone with creating the timer in the OpeningFcn:
%PUTTING IN THE TIMER
handles.gotimer = timer('TimerFcn',@(hObject,eventdata)GoButton_Callback(hObject, eventdata, handles),'StartDelay',15);
In the first function I call (GoButton_Callback), which is then the function to initialize another trial as well, I stop the timer:
%stop the timer
stop(handles.gotimer)
guidata(hObject,handles);
That function then calls one of my playback functions, at the end of which I run the timer and go back to the GoButton:
if rep_num < 65;
start(handles.gotimer);
guidata(hObject,handles);
end
At this point, the GoButton function goes to stop the timer (see above), and I get an error:
??? Error while evaluating TimerFcn for timer 'timer-7'
Reference to non-existent field 'gotimer'.
I should note that the number of the timer does seem to be creeping up, so I'm wondering if I keep creating another timer object. Anyone have ideas?

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回答（1 个）

Sean de Wolski
Sean de Wolski 2012-7-16
As for the timers incrementing count. This will happen. Make sur eyou delete your timers when you are done with them!
t = timerfind;
or
t = timerfindall;
And:
if ~isempty(t)
stop(t)
delete(t);
end

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