本程式通过4*4键盘的输入控制步进马达的正转和反转,停止转动以及加速和减速.-the program through 4 * 4 keyboard input to control stepper motors and the switch is turned around, stop turning and accelerating and decelerating.

单片机实例-电机控制，可以实现加速，减速，或者正反转-SCM instance- motor control, can achieve acceleration, deceleration, or Reversible