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TMS320F28069M: About instaspin-motion

Part Number: TMS320F28069M

I have some questions about instaspin-motion

When we are running lab12b, sometimes the motor can start and sometimes it cannot start .We consider whether it is because of ForceAngle that the starting current is the maximum current directly, which causes the motor to be stuck,But when we start the motor using the GUI,we can see that the starting current is the maximum current, the motor works very well. I don't know the reason why we cannot run the motor like GUI.

Another question is that we want the velocity to track a sinusoidal signal to achieve small amplitude fast sway control, can we use sin-curve instead of st-curve to control the speed?