用s51控制电机正,反转,汇编,c源程序,步进电机加速-减速运行,S51 motor is used to control, reverse, compile, c source code, stepping motor to speed up- slow running

4线双极性半步八拍方式步进电机旋转源程序代码-4-wire bipolar half-step eight-beat way of stepper motor rotating source code