STM32步进电机实验，内有详细注释。

　　 步进电机实验

实验目的： 熟悉了解STM32GPIO的操作和库函数的使用

* 单双八拍工作方式： *

* A-AB-B-BC-C-CD-D-DA (即一个脉冲,转 3.75 度) 　　　　　　　　　　　　 *

*实验注意： J14短路冒需断开 如果用步进电机内部供电 请将电源跳到5V位置 否则步进电机因电压过低，而不能转 　　 *

实验现象：　　电机旋转-STM32 stepper motor experiment, with detailed notes. Stepper motor Experiment Objective: to become familiar with STM32GPIO operation and use of library functions*　single and double eight-shot way of working:**　A-AB-B-BC-C-CD-D-DA (ie a pulse, turn 3.75 degrees)** Experimental Note: J14 short take off if you need to use stepper motors Skip 5V internal power supply plug the power position or stepper motor due to voltage too low and can not be transferred* experimental phenomena: the motor rotation