archlinux - Arduino + 3 step motors with a bipolar steppermotor controllor

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Thomas
Thomas 2013-5-6
Hallo First of all I am useing archlinux and the mablab support package from http://www.mathworks.se/matlabcentral/fileexchange/32374 So for our university project we have to make a robotic arm which has to move en the 2D plane and rotate about it's own axis - We are confined to by the university to do this with an arduino and step motors and they prefer we program it all in MATLAB - I am using a bipolar steppermotor controllor to control the stepmotors, individually it is working fine, but I can't get them to run simultaneously and at this time I haven't been able to figure out the code to use - the code i am useing now is:
step=1800; %1800 steps
for i=1:step
a.digitalWrite(13,1);
pause(0.001)%Pause is neassesary not to stall step motor
a.digitalWrite(13,0);
pause(0.001)
end
What I was thinking might work is
tic
while toc/30<1
step=1800; %1800 steps
for i=1:step
a.digitalWrite(13,1);
pause(0.001)%Pause is neassesary not to stall step motor
a.digitalWrite(13,0);
pause(0.001)
end
end
while toc/60<1
step=1800;
for i=1:step
a.digitalWrite(8,1);
pause(0.001)
a.digitalWrite(8,0);
pause(0.001)
end
end
But this is not working like I had hoped. Hope anyone has an idea that can help me :)

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