Patrick Wensing / experiment_example_MATLAB

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Experiment_Example_old_MATLAB.m@5:1497fccca82e, 2015-09-22 (annotated)

Committer:
Patrick Wensing
Date:
Tue Sep 22 09:08:00 2015 -0400
Revision:
5:1497fccca82e
Added file for users of older MATLAB versions

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Patrick Wensing 5:1497fccca82e 1 function output_data = Experiment_Example_MATLAB()
Patrick Wensing 5:1497fccca82e 2 figure(1); clf; % Create an empty figure to update later
Patrick Wensing 5:1497fccca82e 3 subplot(211)
Patrick Wensing 5:1497fccca82e 4 h1 = plot([0],[0]);
Patrick Wensing 5:1497fccca82e 5
Patrick Wensing 5:1497fccca82e 6 % h1
Patrick Wensing 5:1497fccca82e 7 set(h1,'XData',[],'YData', []);
Patrick Wensing 5:1497fccca82e 8 ylabel('Position (counts)');
Patrick Wensing 5:1497fccca82e 9 subplot(212)
Patrick Wensing 5:1497fccca82e 10 h2 = plot([0],[0]);
Patrick Wensing 5:1497fccca82e 11 %h2.XData = []; h2.YData = [];
Patrick Wensing 5:1497fccca82e 12 set(h2,'XData',[],'YData',[]);
Patrick Wensing 5:1497fccca82e 13 ylabel('Velocity (counts/s)');
Patrick Wensing 5:1497fccca82e 14
Patrick Wensing 5:1497fccca82e 15 % This function will get called any time there is new data from
Patrick Wensing 5:1497fccca82e 16 % the FRDM board. Data comes in blocks, rather than one at a time.
Patrick Wensing 5:1497fccca82e 17 function my_callback(new_data)
Patrick Wensing 5:1497fccca82e 18 t = new_data(:,1); % time
Patrick Wensing 5:1497fccca82e 19 pos = new_data(:,2); % position
Patrick Wensing 5:1497fccca82e 20 vel = new_data(:,3); % velocity
Patrick Wensing 5:1497fccca82e 21 N = length(pos);
Patrick Wensing 5:1497fccca82e 22 tt = get(h1,'XData');
Patrick Wensing 5:1497fccca82e 23 yy = get(h1,'YData');
Patrick Wensing 5:1497fccca82e 24
Patrick Wensing 5:1497fccca82e 25 tt(end+1:end+N) = t; % Update subplot 1
Patrick Wensing 5:1497fccca82e 26 yy(end+1:end+N) = pos;
Patrick Wensing 5:1497fccca82e 27 set(h1,'XData',tt,'YData',yy);
Patrick Wensing 5:1497fccca82e 28
Patrick Wensing 5:1497fccca82e 29 tt = get(h2,'XData');
Patrick Wensing 5:1497fccca82e 30 yy = get(h2,'YData');
Patrick Wensing 5:1497fccca82e 31
Patrick Wensing 5:1497fccca82e 32 tt(end+1:end+N) = t; % Update subplot 2
Patrick Wensing 5:1497fccca82e 33 yy(end+1:end+N) = vel;
Patrick Wensing 5:1497fccca82e 34
Patrick Wensing 5:1497fccca82e 35 set(h2,'XData',tt,'YData',yy);
Patrick Wensing 5:1497fccca82e 36 end
Patrick Wensing 5:1497fccca82e 37
Patrick Wensing 5:1497fccca82e 38 frdm_ip = '192.168.1.100'; % FRDM board ip
Patrick Wensing 5:1497fccca82e 39 frdm_port= 11223; % FRDM board port
Patrick Wensing 5:1497fccca82e 40 params.callback = @my_callback; % callback function
Patrick Wensing 5:1497fccca82e 41 params.timeout = 2; % end of experiment timeout
Patrick Wensing 5:1497fccca82e 42
Patrick Wensing 5:1497fccca82e 43 % The example program provided takes two arguments
Patrick Wensing 5:1497fccca82e 44 v1 = 1.0; % pwm applied for first second
Patrick Wensing 5:1497fccca82e 45 v2 = 0.0; % pwm applied for second second
Patrick Wensing 5:1497fccca82e 46 input = [v1 v2]; % input sent to FRDM board
Patrick Wensing 5:1497fccca82e 47 output_size = 3; % number of outputs expected
Patrick Wensing 5:1497fccca82e 48
Patrick Wensing 5:1497fccca82e 49 output_data = RunExperiment(frdm_ip,frdm_port,input,output_size,params);
Patrick Wensing 5:1497fccca82e 50
Patrick Wensing 5:1497fccca82e 51 end
Patrick Wensing 5:1497fccca82e 52
Patrick Wensing 5:1497fccca82e 53
Patrick Wensing 5:1497fccca82e 54