Genuino Uno and servo issue on Macbook Pro

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hi everybody,

i've problem genuino uno on macbook pro retina 15, i've control servo motor (savox sc-1268sg) , after have created object arduino, following code:

a = arduino('/dev/tty.usbmodem1421','uno', 'libraries', 'servo')

i create servo object with:

s = servo(a, 'd3', 'minpulseduration', 1000*10^-6, 'maxpulseduration', 2000*10^-6)

on digital pin 3 (pwm).

theoretically command:

writeposition(s, 1)

the servo should move on maxpulseduration correspond 100° instead matlab returns message:

"the host , client connection lost. make sure board plugged in , recreate arduino , related objects."

conversely if move servo pitch 0.01 initial position: 0.5, 0.51, 0.52, etc. command line, servo moves; instead if use cycle:

for i=0.5:0.01:1
  writeposition(s, i);
end

matlab returns same error message above. instead if add pause(5e-5) after writeposition(s,i) seems work.

i don't understand issue.

anyone know why happens? problem macbook correlated.

thank in advance

quote
probably problem macbook correlated.
probably problem matlab, not arduino. question belongs on matlab forum, not arduino forum.


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