Example-3: Typical solution for exercise-1: Drive a 4-wire stepper motor

 Library dependencies

• STM32F4xx_StdPeriph_Driver
  • STM32F4xx.h
  • STM32F4xx RCC
  • STM32F4xx GPIO

• Codes
  • delay.h (click here) & delay.c (click here)
  • Key.h (click here) & Key.c (click here)
  • StepperMotor.h (click here) & StepperMotor.c (click here)
  • main.c (click here)

THE END.