在两块单片机之间，通过串口通信机制，控制步进电机转动和停止。当指拨开关接地时，电机停止；当指拨开关接+5v电源时，电机转动。-Between the two single-chip, through the serial communication mechanisms to control the stepper motor rotates and stops. When the DIP switch is grounded, the motor stops When the DIP swi

stm32单片机控制步进电机，控制步进电机加减速算法(Stepping motor controlled by single chip microcomputer)