Abstract: With the promotion of more and more stepper motor drivers on market, it is convenient to control and use stepper motors. In some cases the stepper motor needs running at high speed, and in order to prevent the loss of step, overshoot and stall, its acceleration and deceleration process need to be rationally designed. The theory of the acceleration process of stepper motor is studied based on the physical properties of the stepper motor and then the stepper motor acceleration curve generation tool software designed. This tool software can generate acceleration curve data automatically according to the stepper motor parameters and acceleration process demand parameters, and can be easily exported to .C and .H file for microcontrollers program debugging and using, and finally through the microcontroller control platform its effectiveness and practicability is verified.

Key words: stepper motor, acceleration curve, microcontroller