控制四相步进电机按双八拍的运行方式运行。按下开关SW1时启动步进电机，按ESC键停止工作。采用循环查表法，用软件来实现脉冲循环分配器的功能对步进电机绕组轮流加电。

要求对题目进行功能分析（四项功能：快速顺时针旋转，慢速顺时针旋转，快速逆时针旋转和慢速逆时针旋转），进行步进电机远程控制系统硬件电路设计，画出电路原理图、元器件布线图、实验电路图；绘制程序流程图，进行步进电机控制程序设计（采用8086汇编语言）；系统调试、运行，提交一个满足上述要求的步进电机控制系统设计

-Four phase stepper motor controlled by two-run shot eight manner. Press the start switch SW1 when the stepping motor, according to ESC key to stop working. Adopt the cycle look-up table method, using software to achieve the function of pulse cycles distributor winding rotation of the stepper motor power.

Requested topic Function Analysis (four functions: rapid clockwise rotation, clockwise slow, fast and slow anti-clockwise rotating counterclockwise rotation), for remote control of stepper motor system hardware circuit design, draw the circuit schematic diagram , components wiring diagram, the experimental circuit diagram　flow chart drawing program for stepper motor control program design (using 8086 assembly language)　system debugging, running, submit a request to meet the above-mentioned stepping motor control system design