STM32 Timer Interrupt Priority

void Init(void)

{

  GPIO_InitTypeDef GPIO_InitStructure;

  TIM_ICInitTypeDef TIM_ICInitStructure;

  NVIC_InitTypeDef NVIC_InitStructure;

  TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

  // Clock Enable

  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);

  // Clock enable

  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);

  // Config des Pins PA1 als AF-Input

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;

  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;

  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;

  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;

  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;

  GPIO_Init(GPIOA, &GPIO_InitStructure);

  // Alternative-Funktion mit dem IO-Pin PA1 verbinden

  GPIO_PinAFConfig(GPIOA, GPIO_PinSource1, GPIO_AF_TIM2);

  TIM_TimeBaseStructure.TIM_Period = 0xFFFF;

  TIM_TimeBaseStructure.TIM_Prescaler = 0;

  TIM_TimeBaseStructure.TIM_ClockDivision = 0;

  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;

  TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;

  TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

  // Vorteiler einstellen (Vorteiler von 167 => 1MHz)

  TIM_PrescalerConfig(TIM2, 0, TIM_PSCReloadMode_Immediate);

  // Channel 2

  TIM_ICInitStructure.TIM_Channel = TIM_Channel_2;

  TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Falling;

  TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;

  TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;

  TIM_ICInitStructure.TIM_ICFilter = 0x0;

  TIM_ICInit(TIM2, &TIM_ICInitStructure);

  // Timer enable

  TIM_Cmd(TIM2, ENABLE);

  NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;

  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;

  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;

  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

  NVIC_Init(&NVIC_InitStructure);

  //Interrupt Enable

  TIM_ITConfig(TIM2, TIM_IT_CC2, ENABLE);

  TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);

}

//-----------------------

// TIM2 Interrupt Handler

//-----------------------

void TIM2_IRQHandler(void)

{

  // Überprüfen ob Overflow-Flag gesetzt wurde

  if(TIM_GetITStatus(TIM2, TIM_IT_Update) == SET)

  {

    // delete Interrupt Flags

    TIM_ClearITPendingBit(TIM2, TIM_IT_Update);

    //Funktion

    }

  }

  // Überprüfung ob Capture-Flag gesetzt wurde

  if(TIM_GetITStatus(TIM2, TIM_IT_CC2) == SET)

  {

    // delete Interrupt Flags

    TIM_ClearITPendingBit(TIM2, TIM_IT_CC2);

    //Funktion

  }

}