MATLAB: Generating a Square Wave with Varying Frequency

Question

I am looking to do control of a stepper motor using dSpace. I am using an Allegro A4982 driver chip. In order to control the stepping of the motor using this driver, I need to input a square wave to the driver. For example, a square wave of 50 Hz will give me a step rate of 50 pps. I want to be able to vary the frequency of the square wave "on the fly" so I can input some sort of motion profile input to the system. Any suggestions on how this might work?

Answer 1

you can also change the width of the pulse by adding another slider varying from 0 to 1