stm8s_tim2.c

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  * @param[in] NewState new state of the Capture Compare Preload register.
  * This parameter can be ENABLE or DISABLE.
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  * @par Example:
  * Enable the TIM2 peripheral Preload Register on CCR1.
  * @code
  * TIM2_OC1PreloadConfig(ENABLE);
  * @endcode
  */
void TIM2_OC1PreloadConfig(FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_FUNCTIONALSTATE_OK(NewState));

  /* Set or Reset the OC1PE Bit */
  if (NewState != DISABLE)
  {
    TIM2->CCMR1 |= TIM2_CCMR_OCxPE;
  }
  else
  {
    TIM2->CCMR1 &= (u8)(~TIM2_CCMR_OCxPE);
  }
}


/**
  * @brief Enables or disables the TIM2 peripheral Preload Register on CCR2.
  * @param[in] NewState new state of the Capture Compare Preload register.
  * This parameter can be ENABLE or DISABLE.
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  * @par Example:
  * Enable the TIM2 peripheral Preload Register on CCR2.
  * @code
  * TIM2_OC2PreloadConfig(ENABLE);
  * @endcode
  */
void TIM2_OC2PreloadConfig(FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_FUNCTIONALSTATE_OK(NewState));

  /* Set or Reset the OC2PE Bit */
  if (NewState != DISABLE)
  {
    TIM2->CCMR2 |= TIM2_CCMR_OCxPE;
  }
  else
  {
    TIM2->CCMR2 &= (u8)(~TIM2_CCMR_OCxPE);
  }
}


/**
  * @brief Enables or disables the TIM2 peripheral Preload Register on CCR3.
  * @param[in] NewState new state of the Capture Compare Preload register.
  * This parameter can be ENABLE or DISABLE.
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  * @par Example:
  * Enable the TIM2 peripheral Preload Register on CCR3.
  * @code
  * TIM2_OC3PreloadConfig(ENABLE);
  * @endcode
  */
void TIM2_OC3PreloadConfig(FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_FUNCTIONALSTATE_OK(NewState));

  /* Set or Reset the OC3PE Bit */
  if (NewState != DISABLE)
  {
    TIM2->CCMR3 |= TIM2_CCMR_OCxPE;
  }
  else
  {
    TIM2->CCMR3 &= (u8)(~TIM2_CCMR_OCxPE);
  }
}


/**
  * @brief Configures the TIM2 event to be generated by software.
  * @param[in] TIM2_EventSource specifies the event source.
  * This parameter can be one of the following values:
  *                       - TIM2_EVENTSOURCE_UPDATE: TIM2 update Event source
  *                       - TIM2_EVENTSOURCE_CC1: TIM2 Capture Compare 1 Event source
  *                       - TIM2_EVENTSOURCE_CC2: TIM2 Capture Compare 2 Event source
  *                       - TIM2_EVENTSOURCE_CC3: TIM2 Capture Compare 3 Event source
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  * @par Example:
  * Configure the TIM2 event to be generated by software.
  * @code
  * TIM2_GenerateEvent(TIM2_EVENTSOURCE_UPDATE);
  * @endcode
  */
void TIM2_GenerateEvent(TIM2_EventSource_TypeDef TIM2_EventSource)
{
  /* Check the parameters */
  assert_param(IS_TIM2_EVENT_SOURCE_OK(TIM2_EventSource));

  /* Set the event sources */
  TIM2->EGR = TIM2_EventSource;
}


/**
  * @brief Configures the TIM2 Channel 1 polarity.
  * @param[in] TIM2_OCPolarity specifies the OC1 Polarity.
  * This parameter can be one of the following values:
  *                       - TIM2_OCPOLARITY_LOW: Output Compare active low
  *                       - TIM2_OCPOLARITY_HIGH: Output Compare active high
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  * @par Example:
  * Configure the TIM2 Channel 1 polarity to High.
  * @code
  * TIM2_OC1PolarityConfig(TIM2_OCPOLARITY_HIGH);
  * @endcode
  */
void TIM2_OC1PolarityConfig(TIM2_OCPolarity_TypeDef TIM2_OCPolarity)
{
  /* Check the parameters */
  assert_param(IS_TIM2_OC_POLARITY_OK(TIM2_OCPolarity));

  /* Set or Reset the CC1P Bit */
  if (TIM2_OCPolarity != TIM2_OCPOLARITY_HIGH)
  {
    TIM2->CCER1 |= TIM2_CCER1_CC1P;
  }
  else
  {
    TIM2->CCER1 &= (u8)(~TIM2_CCER1_CC1P);
  }
}


/**
  * @brief Configures the TIM2 Channel 2 polarity.
  * @param[in] TIM2_OCPolarity specifies the OC2 Polarity.
  * This parameter can be one of the following values:
  *                       - TIM2_OCPOLARITY_LOW: Output Compare active low
  *                       - TIM2_OCPOLARITY_HIGH: Output Compare active high
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  * @par Example:
  * Configure the TIM2 Channel 2 polarity to High.
  * @code
  * TIM2_OC2PolarityConfig(TIM2_OCPOLARITY_HIGH);
  * @endcode
  */
void TIM2_OC2PolarityConfig(TIM2_OCPolarity_TypeDef TIM2_OCPolarity)
{
  /* Check the parameters */
  assert_param(IS_TIM2_OC_POLARITY_OK(TIM2_OCPolarity));

  /* Set or Reset the CC2P Bit */
  if (TIM2_OCPolarity != TIM2_OCPOLARITY_HIGH)
  {
    TIM2->CCER1 |= TIM2_CCER1_CC2P;
  }
  else
  {
    TIM2->CCER1 &= (u8)(~TIM2_CCER1_CC2P);
  }
}


/**
  * @brief Configures the TIM2 Channel 3 polarity.
  * @param[in] TIM2_OCPolarity specifies the OC3 Polarity.
  * This parameter can be one of the following values:
  *                       - TIM2_OCPOLARITY_LOW: Output Compare active low
  *                       - TIM2_OCPOLARITY_HIGH: Output Compare active high
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  * @par Example:
  * Configure the TIM2 Channel 3 polarity to High.
  * @code
  * TIM2_OC3PolarityConfig(TIM2_OCPOLARITY_HIGH);
  * @endcode
  */
void TIM2_OC3PolarityConfig(TIM2_OCPolarity_TypeDef TIM2_OCPolarity)
{
  /* Check the parameters */
  assert_param(IS_TIM2_OC_POLARITY_OK(TIM2_OCPolarity));

  /* Set or Reset the CC3P Bit */
  if (TIM2_OCPolarity != TIM2_OCPOLARITY_HIGH)
  {
    TIM2->CCER2 |= TIM2_CCER2_CC3P;
  }
  else
  {
    TIM2->CCER2 &= (u8)(~TIM2_CCER2_CC3P);
  }
}


/**
  * @brief Enables or disables the TIM2 Capture Compare Channel x.
  * @param[in] TIM2_Channel specifies the TIM2 Channel.
  * This parameter can be one of the following values:
  *                       - TIM2_CHANNEL_1: TIM2 Channel1
  *                       - TIM2_CHANNEL_2: TIM2 Channel2
  *                       - TIM2_CHANNEL_3: TIM2 Channel3
  * @param[in] NewState specifies the TIM2 Channel CCxE bit new state.
  * This parameter can be: ENABLE or DISABLE.
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  * @par Example:
  * Enable the TIM2 Capture Compare Channel 1.
  * @code
  * TIM2_CCxCmd(TIM2_CHANNEL_1, ENABLE);
  * @endcode
  */
void TIM2_CCxCmd(TIM2_Channel_TypeDef TIM2_Channel, FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_TIM2_CHANNEL_OK(TIM2_Channel));
  assert_param(IS_FUNCTIONALSTATE_OK(NewState));

  if (TIM2_Channel == TIM2_CHANNEL_1)
  {
    /* Set or Reset the CC1E Bit */
    if (NewState != DISABLE)
    {
      TIM2->CCER1 |= TIM2_CCER1_CC1E;
    }
    else
    {
      TIM2->CCER1 &= (u8)(~TIM2_CCER1_CC1E);
    }

  }
  else if (TIM2_Channel == TIM2_CHANNEL_2)
  {
    /* Set or Reset the CC2E Bit */
    if (NewState != DISABLE)
    {
      TIM2->CCER1 |= TIM2_CCER1_CC2E;
    }
    else
    {
      TIM2->CCER1 &= (u8)(~TIM2_CCER1_CC2E);
    }
  }
  else
  {
    /* Set or Reset the CC3E Bit */
    if (NewState != DISABLE)
    {
      TIM2->CCER2 |= TIM2_CCER2_CC3E;
    }
    else
    {
      TIM2->CCER2 &= (u8)(~TIM2_CCER2_CC3E);
    }
  }
}

/**
  * @brief Selects the TIM2 Output Compare Mode. This function disables the
  * selected channel before changing the Output Compare Mode. User has to
  * enable this channel using TIM2_CCxCmd and TIM2_CCxNCmd functions.
  * @param[in] TIM2_Channel specifies the TIM2 Channel.
  * This parameter can be one of the following values:
  *                       - TIM2_CHANNEL_1: TIM2 Channel1
  *                       - TIM2_CHANNEL_2: TIM2 Channel2
  *                       - TIM2_CHANNEL_3: TIM2 Channel3
  * @param[in] TIM2_OCMode specifies the TIM2 Output Compare Mode.
  * This paramter can be one of the following values:
  *                       - TIM2_OCMODE_TIMING
  *                       - TIM2_OCMODE_ACTIVE
  *                       - TIM2_OCMODE_TOGGLE
  *                       - TIM2_OCMODE_PWM1
  *                       - TIM2_OCMODE_PWM2
  *                       - TIM2_FORCEDACTION_ACTIVE
  *                       - TIM2_FORCEDACTION_INACTIVE
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  * @par Example:
  * Selects the TIM2 Output Compare Mode TIM2_OCMODE_TIMING for channel1.
  * @code
  * TIM2_SelectOCxM(TIM2_CHANNEL_1, TIM2_OCMODE_TIMING);
  * @endcode
  */
void TIM2_SelectOCxM(TIM2_Channel_TypeDef TIM2_Channel, TIM2_OCMode_TypeDef TIM2_OCMode)
{
  /* Check the parameters */
  assert_param(IS_TIM2_CHANNEL_OK(TIM2_Channel));
  assert_param(IS_TIM2_OCM_OK(TIM2_OCMode));

  if (TIM2_Channel == TIM2_CHANNEL_1)
  {
    /* Disable the Channel 1: Reset the CCE Bit */
    TIM2->CCER1 &= (u8)(~TIM2_CCER1_CC1E);

    /* Reset the Output Compare Bits & Set the Output Compare Mode */
    TIM2->CCMR1 = (u8)((TIM2->CCMR1 & (u8)(~TIM2_CCMR_OCM)) | (u8)TIM2_OCMode);
  }
  else if (TIM2_Channel == TIM2_CHANNEL_2)
  {
    /* Disable the Channel 2: Reset the CCE Bit */
    TIM2->CCER1 &= (u8)(~TIM2_CCER1_CC2E);

    /* Reset the Output Compare Bits & Set the Output Compare Mode */
    TIM2->CCMR2 = (u8)((TIM2->CCMR2 & (u8)(~TIM2_CCMR_OCM)) | (u8)TIM2_OCMode);
  }
  else
  {
    /* Disable the Channel 3: Reset the CCE Bit */
    TIM2->CCER2 &= (u8)(~TIM2_CCER2_CC3E);

    /* Reset the Output Compare Bits & Set the Output Compare Mode */
    TIM2->CCMR3 = (u8)((TIM2->CCMR3 & (u8)(~TIM2_CCMR_OCM)) | (u8)TIM2_OCMode);
  }
}


/**
  * @brief Sets the TIM2 Counter Register value.
  * @param[in] Counter specifies the Counter register new value.
  * This parameter is between 0x0000 and 0xFFFF.
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  * @par Example:
  * Set the TIM2 Counter Register value to 0xFFEE.
  * @code
  * TIM2_SetCounter(0xFFEE);
  * @endcode
  */
void TIM2_SetCounter(u16 Counter)
{
  /* Set the Counter Register value */
  TIM2->CNTRH = (u8)(Counter >> 8);
  TIM2->CNTRL = (u8)(Counter);

}


/**
  * @brief Sets the TIM2 Autoreload Register value.
  * @param[in] Autoreload specifies the Autoreload register new value.
  * This parameter is between 0x0000 and 0xFFFF.
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None