四相电机驱动程序，四相八拍的驱动程序-Four-phase motor drive, four-phase eight-shot driver

四相八拍步进电机AT89C2051的驱动,该驱动器根据拨码开关KX、KY的不同组合有三种工作方式供选择.-Four-phase stepper motor AT89C2051 8 film is driven by the drive under the DIP switches KX, KY There are three different combinations of methods of work available.

步进电机为四相单四拍,8255输出步进电机驱动信号，电机线圈A、B、C、D四相由8255的PC口PC0-PC3控制，逆时针：D→DC→C→CB→B→BA→A→AD→D→…,顺时针：DA→A→AB→B→BC→C→CD→D→DA→… 键盘0~9控制转速，B或C控制方向，F退出 数码管显示S.SPEED- i，i为转速-Four-phase stepper motor is a single four-beat, 8255 stepper motor drive output signal,