用C编写单片机控制两个步进电机正反转程序,驱动用ULN2803,四个按键分...答:uchar FFW_shang[8]={0x10,0x30,0x20,0x60,0x40,0xc0,0x80,0x90}; //四相八拍正转编码 uchar REV_shang[8]={0x90,0x80,0xc0,0x40,0x60,0x20,0x30,0x10}; ///四相八拍反转编码 uchar bujinjiao=0; //控制步进电机的步进角 void IO_bujin(void){ P1DIR|=0XFF;P1...