//源文件
void LedPhyConfig()
{
  RCC->AHB1ENR |= (1<<1);    //使能GPIOB
  //LD1
  GPIOB->MODER |=  (1<<0*2);  //输出模式
  GPIOB->OTYPER &= ~(1<<0);   //推挽
  GPIOB->OSPEEDR |= (1<<0*2);  //High speed
  //LD2
  GPIOB->MODER |=  (1<<7*2);  //输出模式
  GPIOB->OTYPER &= ~(1<<7);   //推挽
  GPIOB->OSPEEDR |= (1<<7*2);  //High speed
  //LD3
  GPIOB->MODER |=  (1<<14*2);  //输出模式
  GPIOB->OTYPER &= ~(1<<14);   //推挽
  GPIOB->OSPEEDR |= (1<<14*2);  //High speed
  LD1_OFF;LD2_OFF;LD3_OFF;
}

//头文件
/***************************** LED*************************************/
#define  LD1_ON   (GPIOB->ODR |= (1<<0))
#define  LD1_OFF  (GPIOB->ODR &= ~(1<<0))
#define  LD1_TURN (GPIOB->IDR &(1<<0)?LD1_OFF:LD1_ON)

#define  LD2_ON   (GPIOB->ODR |= (1<<7))
#define  LD2_OFF  (GPIOB->ODR &= ~(1<<7))
#define  LD2_TURN (GPIOB->IDR &(1<<7)?LD2_OFF:LD2_ON)

#define  LD3_ON   (GPIOB->ODR |= (1<<14))
#define  LD3_OFF  (GPIOB->ODR &= ~(1<<14))
#define  LD3_TURN (GPIOB->IDR &(1<<14)?LD3_OFF:LD3_ON)

void LedPhyConfig(void);
/**********************************************************************/