用verilog语言编写的步进电机加减速控制算法，可选择梯形曲线或S型曲线算法-Verilog language stepper motor acceleration and deceleration control algorithm, you can choose the trapezoidal curve or S-curve algorithm

atmel官方的对于步进电机加减速控制，源码和算法，(Atmel official for stepper motor acceleration and deceleration control, source code and algorithm,)

步进电机的加减速算法，内容非常详细，注释也比较清晰(Acceleration and deceleration algorithm of stepping motor)