用C++生成的步进电机电流细分程序，含软件，可节省较多的MCU资源实现电机各种速度曲线很流恒压控制及无级变速，实用经典，可用于各种精确运动控制及机器人神经终端驱动。-Using C++ generated stepper motor current subdivision process, including software, can save more MCU resources to achieve a variety of motor speed curve is continuousl