Matlab R2015a error while communicating with Beaglebone

Hello,

I am using Matlab R2015a with BeagleBone Black support package. I have a Beaglebone Black Rev C. I am using the following code to read data from its ADC pins. Pins are connected to a simple voltage divider circuit with a flex sensor. I am also using addpoints function to draw real time graph so that I can get the characteristic of the flex sensor for my project. I am using the following code for such purpose. (Note that mouse cursor control functions are irrelevant since they are for the project.)

import java.awt.Robot;
mouse = Robot;
screenSize = get(0, 'screensize');
h=animatedline;
t=1:3000;
hold on;
voltage=zeros(1,3001);
for j=1:3000
  voltage(j)=double(readVoltage(bbb,'P9_39'));
  addpoints(h,t(j),voltage(j))
  drawnow

        if voltage<=0.89
            mouse.mouseMove(0, 0);
            for i = 1: screenSize(4)
                k=i*1.78;
                mouse.mouseMove(k, i);
                pause(0.00001)
            end
        break
        end
end

When I run the code I can get some samples until some point. Sometimes after 500 and sometimes after 1000 samples I get the following error;

Error using beaglebone/recvResponse (line 1315)
An error has occurred while communicating with the server running on BeagleBone hardware.
Error in beaglebone/readVoltage (line 635)
          result = typecast(uint8(obj.recvResponse()), 'Single');
Error in Untitled (line 9)
  voltage(j)=double(readVoltage(bbb,'P9_39'));

Then I loose connection to the Beaglebone Black hardware, this code and the other working codes with Beaglebone stop working. I cannot re-connect by using bbb=beaglebone until I reboot my hardware. I hope someone has an answer for me.

Thanks in advance.

[emre yazici]

You can try the code by using first in first out principle, because in my opinion the error is caused by exceeding buffer avaliablity.