C++ IS_DAC_CHANNEL函数代码示例

/**
  * @brief  Enables DAC and starts conversion of channel.
  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
  *         the configuration information for the specified DAC.
  * @param  Channel: The selected DAC channel. 
  *          This parameter can be one of the following values:
  *            @arg DAC_CHANNEL_1: DAC Channel1 selected
  *            @arg DAC_CHANNEL_2: DAC Channel2 selected
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DAC_Start(DAC_HandleTypeDef* hdac, uint32_t Channel)
{
  uint32_t tmp1 = 0, tmp2 = 0;
  
  /* Check the parameters */
  assert_param(IS_DAC_CHANNEL(Channel));
  
  /* Process locked */
  __HAL_LOCK(hdac);
  
  /* Change DAC state */
  hdac->State = HAL_DAC_STATE_BUSY;
  
  /* Enable the Peripheral */
  __HAL_DAC_ENABLE(hdac, Channel);
  
  if(Channel == DAC_CHANNEL_1)
  {
    tmp1 = hdac->Instance->CR & DAC_CR_TEN1;
    tmp2 = hdac->Instance->CR & DAC_CR_TSEL1;
    /* Check if software trigger enabled */
    if((tmp1 ==  DAC_CR_TEN1) && (tmp2 ==  DAC_CR_TSEL1))
    {
      /* Enable the selected DAC software conversion */
      hdac->Instance->SWTRIGR |= (uint32_t)DAC_SWTRIGR_SWTRIG1;
    }
  }
  else
  {
    tmp1 = hdac->Instance->CR & DAC_CR_TEN2;
    tmp2 = hdac->Instance->CR & DAC_CR_TSEL2;    
    /* Check if software trigger enabled */
    if((tmp1 == DAC_CR_TEN2) && (tmp2 == DAC_CR_TSEL2))
    {
      /* Enable the selected DAC software conversion*/
      hdac->Instance->SWTRIGR |= (uint32_t)DAC_SWTRIGR_SWTRIG2;
    }
  }
  
  /* Change DAC state */
  hdac->State = HAL_DAC_STATE_READY;
  
  /* Process unlocked */
  __HAL_UNLOCK(hdac);
    
  /* Return function status */
  return HAL_OK;
}

/**
  * @brief  Select DAC Noise Wave Generation LFSR according to the specified
  *         parameters.
  * @param  DAC_Channel : the selected DAC channel from @ref DAC_Channel_TypeDef
  *         enumeration.
  * @param  DAC_LFSRUnmask : the selected unmasked bit from
  *         @ref DAC_LFSRUnmask_TypeDef enumeration.
  * @retval None
  */
void DAC_NoiseWaveLFSR(DAC_Channel_TypeDef DAC_Channel, DAC_LFSRUnmask_TypeDef DAC_LFSRUnmask)
{
  uint8_t tmpreg = 0;
  uint16_t cr2addr = 0;

  /* Check the DAC parameters */
  assert_param(IS_DAC_CHANNEL(DAC_Channel));
  assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(DAC_LFSRUnmask));

  /* Get the DAC CHxCR2 value  &  Clear MAMPx bits */
  cr2addr = (uint16_t)(DAC_BASE + CR2_Offset + (uint8_t)((uint8_t)DAC_Channel << 1));
  tmpreg = (uint8_t)((*(uint8_t*)(cr2addr)) & (uint8_t)~(DAC_CR2_MAMPx));

  /* Write to DAC CHxCR2 */
  (*(uint8_t*)(cr2addr)) = (uint8_t)( tmpreg | DAC_LFSRUnmask);
}

/**
  * @brief  Software output control.
  * @param  DACx: Select the DAC channel.
  *         This parameter can be one of the following values:
  *         TSB_DA0, TSB_DA1
  * @retval SUCCESS or ERROR.
  */
Result DAC_SWOutput(TSB_DA_TypeDef * DACx)
{

    Result retval = ERROR;
    uint32_t reg = 0U;
    assert_param(IS_DAC_CHANNEL(DACx));
    /*Set the bit if <TRGEN>=1 is set. */
    reg = DACx->DCTL & DAC_SWEN_TRG_MASK;
    if (reg == DAC_SWEN_TRG_DATA) {
        DACx->TCTL = DAC_SWRTG_DATA;
        retval = SUCCESS;
    } else {
        retval = ERROR;
    }
    return retval;
}

/**
  * @brief  Disables DAC and stop conversion of channel.
  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
  *         the configuration information for the specified DAC.
  * @param  Channel: The selected DAC channel. 
  *          This parameter can be one of the following values:
  *            @arg DAC_CHANNEL_1: DAC Channel1 selected
  *            @arg DAC_CHANNEL_2: DAC Channel2 selected   
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DAC_Stop_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel)
{
   HAL_StatusTypeDef status = HAL_OK;
    
  /* Check the parameters */
  assert_param(IS_DAC_CHANNEL(Channel));
  
  /* Disable the selected DAC channel DMA request */
    hdac->Instance->CR &= ~(DAC_CR_DMAEN1 << Channel);
    
  /* Disable the Peripheral */
  __HAL_DAC_DISABLE(hdac, Channel);
  
  /* Disable the DMA channel */
  /* Channel1 is used */
  if (Channel == DAC_CHANNEL_1)
  {
    /* Disable the DMA channel */
    status = HAL_DMA_Abort(hdac->DMA_Handle1);
    
    /* Disable the DAC DMA underrun interrupt */
    __HAL_DAC_DISABLE_IT(hdac, DAC_IT_DMAUDR1);
  }
  else /* Channel2 is used for */
  {
    /* Disable the DMA channel */
    status = HAL_DMA_Abort(hdac->DMA_Handle2);
    
    /* Disable the DAC DMA underrun interrupt */
    __HAL_DAC_DISABLE_IT(hdac, DAC_IT_DMAUDR2);
  }
  
  /* Check if DMA Channel effectively disabled */
  if (status != HAL_OK)
  {
    /* Update DAC state machine to error */
    hdac->State = HAL_DAC_STATE_ERROR;
  }
  else
  {
    /* Change DAC state */
    hdac->State = HAL_DAC_STATE_READY;
  }
  
  /* Return function status */
  return status;
}

/**
  * @brief  Enables or disables the selected DAC channel software trigger.
  * @param  DAC_Channel : the selected DAC channel from
  *         @ref DAC_Channel_TypeDef enumeration.
  * @param  NewState : new state of the selected DAC channel software trigger.
  *         This parameter can be: ENABLE or DISABLE.
  * @retval None.
  */
void DAC_SoftwareTriggerCmd(DAC_Channel_TypeDef DAC_Channel, FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_DAC_CHANNEL(DAC_Channel));
  assert_param(IS_FUNCTIONAL_STATE(NewState));

  if (NewState != DISABLE)
  {
    /* Enable software trigger for the selected DAC channel */
    DAC->SWTRIGR |= (uint8_t)(DAC_SWTRIGR_SWTRIG1 << DAC_Channel);
  }
  else
  {
    /* Disable software trigger for the selected DAC channel */
    DAC->SWTRIGR &= (uint8_t)~((uint8_t)(DAC_SWTRIGR_SWTRIG1 << DAC_Channel));
  }
}

/**
  * @brief  This function will set the DAC to the required value
  * @param  port : the gpio port to use
  * @param  pin : the gpio pin to use
  * @param  value : the value to push on the adc output
  * @param  do_init : if set to 1 the initialization of the adc is done
  * @retval None
  */
void dac_write_value(PinName pin, uint32_t value, uint8_t do_init)
{
  DAC_HandleTypeDef DacHandle = {};
  DAC_ChannelConfTypeDef dacChannelConf = {};
  uint32_t dacChannel;

  DacHandle.Instance = pinmap_peripheral(pin, PinMap_DAC);
  if (DacHandle.Instance == NP) return;
  dacChannel = get_dac_channel(pin);
  if (!IS_DAC_CHANNEL(dacChannel)) return;
  if(do_init == 1) {

    if (HAL_DAC_DeInit(&DacHandle) != HAL_OK)
    {
      /* DeInitialization Error */
      return;
    }

    /*##-1- Configure the DAC peripheral #######################################*/
    g_current_pin = pin;
    if (HAL_DAC_Init(&DacHandle) != HAL_OK)
    {
      /* Initialization Error */
      return;
    }

	dacChannelConf.DAC_Trigger = DAC_TRIGGER_NONE;
	dacChannelConf.DAC_OutputBuffer=DAC_OUTPUTBUFFER_ENABLE;
    /*##-2- Configure DAC channel1 #############################################*/
    if (HAL_DAC_ConfigChannel(&DacHandle, &dacChannelConf, dacChannel) != HAL_OK)
    {
      /* Channel configuration Error */
      return;
    }
  }

  /*##-3- Set DAC Channel1 DHR register ######################################*/
  if (HAL_DAC_SetValue(&DacHandle, dacChannel, DAC_ALIGN_12B_R, value) != HAL_OK)
  {
    /* Setting value Error */
    return;
  }

  /*##-4- Enable DAC Channel1 ################################################*/
  HAL_DAC_Start(&DacHandle, dacChannel);
}

/**
  * @brief  Disables DAC and stop conversion of channel.
  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
  *         the configuration information for the specified DAC.
  * @param  Channel: The selected DAC channel. 
  *          This parameter can be one of the following values:
  *            @arg DAC_CHANNEL_1: DAC Channel1 selected
  *            @arg DAC_CHANNEL_2: DAC Channel2 selected   
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DAC_Stop_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel)
{
  /* Check the parameters */
  assert_param(IS_DAC_CHANNEL(Channel));
  
  /* Disable the selected DAC channel DMA request */
    hdac->Instance->CR &= ~(DAC_CR_DMAEN1 << Channel);
    
  /* Disable the Peripharal */
  __HAL_DAC_DISABLE(hdac, Channel);
  
  /* Change DAC state */
  hdac->State = HAL_DAC_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

/**
  * @brief  This function will stop the DAC
  * @param  port : the gpio port to use
  * @param  pin : the gpio pin to use
  * @retval None
  */
void dac_stop(PinName pin)
{
  DAC_HandleTypeDef DacHandle;
  uint32_t dacChannel;

  DacHandle.Instance = pinmap_peripheral(pin, PinMap_DAC);
  if (DacHandle.Instance == NP) return;
  dacChannel = get_dac_channel(pin);
  if (!IS_DAC_CHANNEL(dacChannel)) return;

  HAL_DAC_Stop(&DacHandle, dacChannel);

  if (HAL_DAC_DeInit(&DacHandle) != HAL_OK)
  {
    /* DeInitialization Error */
    return;
  }
}

/**
  * @brief  Set the specified data holding register value for DAC channel.
  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
  *         the configuration information for the specified DAC.
  * @param  Channel: The selected DAC channel. 
  *          This parameter can be one of the following values:
  *            @arg DAC_CHANNEL_1: DAC Channel1 selected
  * @param  Alignment: Specifies the data alignment.
  *          This parameter can be one of the following values:
  *            @arg DAC_ALIGN_8B_R: 8bit right data alignment selected
  *            @arg DAC_ALIGN_12B_L: 12bit left data alignment selected
  *            @arg DAC_ALIGN_12B_R: 12bit right data alignment selected
  * @param  Data: Data to be loaded in the selected data holding register.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DAC_SetValue(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Alignment, uint32_t Data)
{
  __IO uint32_t tmp = 0U;

  /* Check the parameters */
  assert_param(IS_DAC_CHANNEL(Channel));
  assert_param(IS_DAC_ALIGN(Alignment));
  assert_param(IS_DAC_DATA(Data));

  tmp = (uint32_t)hdac->Instance; 
  tmp += DAC_DHR12R1_ALIGNEMENT(Alignment);

  /* Set the DAC channel selected data holding register */
  *(__IO uint32_t *) tmp = Data;

  /* Return function status */
  return HAL_OK;
}

/**
  * @brief  Set the specified data holding register value for DAC channel.
  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
  *         the configuration information for the specified DAC.
  * @param  alignment: Specifies the data alignment for DAC channel1.
  *          This parameter can be one of the following values:
  *            @arg DAC_ALIGN_8B_R: 8bit right data alignment selected
  *            @arg DAC_ALIGN_12B_L: 12bit left data alignment selected
  *            @arg DAC_ALIGN_12B_R: 12bit right data alignment selected
  * @param  data: Data to be loaded in the selected data holding register.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DAC_SetValue(DAC_HandleTypeDef* hdac, uint32_t channel, uint32_t alignment, uint32_t data)
{
  __IO uint32_t tmp = 0;

  /* Check the parameters */
  assert_param(IS_DAC_CHANNEL(channel));
  assert_param(IS_DAC_ALIGN(alignment));
  assert_param(IS_DAC_DATA(data));

  tmp = (uint32_t)DAC_BASE;

  tmp += __HAL_DHR12R1_ALIGNEMENT(alignment);

  /* Set the DAC channel1 selected data holding register */
  *(__IO uint32_t *) tmp = data;

  /* Return function status */
  return HAL_OK;
}

/**
  * @brief  Enables DAC and starts conversion of channel.
  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
  *         the configuration information for the specified DAC.
  * @param  Channel: The selected DAC channel. 
  *          This parameter can be one of the following values:
  *            @arg DAC_CHANNEL_1: DAC Channel1 selected
  *            @arg DAC_CHANNEL_2: DAC Channel2 selected
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DAC_Start(DAC_HandleTypeDef* hdac, uint32_t Channel)
{
  /* Check the parameters */
  assert_param(IS_DAC_CHANNEL(Channel));
  
  /* Process locked */
  __HAL_LOCK(hdac);
  
  /* Change DAC state */
  hdac->State = HAL_DAC_STATE_BUSY;
  
  /* Enable the Peripharal */
  __HAL_DAC_ENABLE(hdac, Channel);
  
  if(Channel == DAC_CHANNEL_1)
  {
    /* Check if software trigger enabled */
    if((hdac->Instance->CR & (DAC_CR_TEN1 | DAC_CR_TSEL1)) == (DAC_CR_TEN1 | DAC_CR_TSEL1))
    {
      /* Enable the selected DAC software conversion */
      SET_BIT(hdac->Instance->SWTRIGR, DAC_SWTRIGR_SWTRIG1);
    }
  }
  else
  {
    /* Check if software trigger enabled */
    if((hdac->Instance->CR & (DAC_CR_TEN2 | DAC_CR_TSEL2)) == (DAC_CR_TEN2 | DAC_CR_TSEL2))
    {
      /* Enable the selected DAC software conversion*/
      SET_BIT(hdac->Instance->SWTRIGR, DAC_SWTRIGR_SWTRIG2);
    }
  }
  
  /* Change DAC state */
  hdac->State = HAL_DAC_STATE_READY;
  
  /* Process unlocked */
  __HAL_UNLOCK(hdac);
  
  /* Return function status */
  return HAL_OK;
}

/**
  * @brief  Configures the selected DAC channel.
  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
  *         the configuration information for the specified DAC.
  * @param  sConfig: DAC configuration structure.
  * @param  Channel: The selected DAC channel. 
  *          This parameter can be one of the following values:
  *            @arg DAC_CHANNEL_1: DAC Channel1 selected
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DAC_ConfigChannel(DAC_HandleTypeDef* hdac, DAC_ChannelConfTypeDef* sConfig, uint32_t Channel)
{
  uint32_t tmpreg1 = 0, tmpreg2 = 0;

  /* Check the DAC parameters */
  assert_param(IS_DAC_TRIGGER(sConfig->DAC_Trigger));
  assert_param(IS_DAC_OUTPUT_BUFFER_STATE(sConfig->DAC_OutputBuffer));
  assert_param(IS_DAC_TRIGGER(sConfig->DAC_Trigger));
  assert_param(IS_DAC_CHANNEL(Channel));
  
  /* Process locked */
  __HAL_LOCK(hdac);
  
  /* Change DAC state */
  hdac->State = HAL_DAC_STATE_BUSY;
  
  /* Get the DAC CR value */
  tmpreg1 = DAC->CR;
  /* Clear BOFFx, TENx, TSELx, WAVEx and MAMPx bits */
  // tmpreg1 &= ~(((uint32_t)(DAC_CR_MAMP1 | DAC_CR_WAVE1 | DAC_CR_TSEL1 | DAC_CR_TEN1 | DAC_CR_BOFF1)) << Channel); 
  tmpreg1 &= ~(((uint32_t)(DAC_CR_TSEL1 | DAC_CR_TEN1 | DAC_CR_BOFF1)) << Channel); 
  /* Configure for the selected DAC channel: buffer output, trigger */
  /* Set TSELx and TENx bits according to DAC_Trigger value */
  /* Set BOFFx bit according to DAC_OutputBuffer value */   
  tmpreg2 = (sConfig->DAC_Trigger | sConfig->DAC_OutputBuffer);
  /* Calculate CR register value depending on DAC_Channel */
  tmpreg1 |= tmpreg2 << Channel;
  /* Write to DAC CR */
  DAC->CR = tmpreg1;
  /* Disable wave generation */
  //  DAC->CR &= ~(DAC_CR_WAVE1 << Channel);
  
  /* Change DAC state */
  hdac->State = HAL_DAC_STATE_READY;
  
  /* Process unlocked */
  __HAL_UNLOCK(hdac);
  
  /* Return function status */
  return HAL_OK;
}

/**
  * @brief  Enables or disables the specified DAC channel.
  * @param  DAC_Channel : the selected DAC channel from
  *         @ref DAC_Channel_TypeDef enumeration.
  * @param  NewState : new state of the DAC channel.
  *         This parameter can be: ENABLE or DISABLE.
  * @retval None
  */
void DAC_Cmd(DAC_Channel_TypeDef DAC_Channel, FunctionalState NewState)
{
  uint16_t cr1addr = 0;
  /* Check the parameters */
  assert_param(IS_DAC_CHANNEL(DAC_Channel));
  assert_param(IS_FUNCTIONAL_STATE(NewState));

  /* Find CHxCR1 register Address */
  cr1addr = DAC_BASE + CR1_Offset + (uint8_t)((uint8_t)DAC_Channel << 1);

  if (NewState != DISABLE)
  {
    /* Enable the selected DAC channel */
    (*(uint8_t*)(cr1addr)) |= DAC_CR1_EN;
  }
  else
  {
    /* Disable the selected DAC channel */
    (*(uint8_t*)(cr1addr)) &= (uint8_t) ~(DAC_CR1_EN);
  }
}

/**
  * @brief  Enables DAC and starts conversion of channel.
  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
  *         the configuration information for the specified DAC.
  * @param  Channel: The selected DAC channel. 
  *          This parameter can be one of the following values:
  *            @arg DAC_CHANNEL_1: DAC Channel1 selected
  *            @arg DAC_CHANNEL_2: DAC Channel2 selected
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_DAC_Start(DAC_HandleTypeDef* hdac, uint32_t Channel)
{
  /* Check the parameters */
  assert_param(IS_DAC_CHANNEL(Channel));
  
  /* Process locked */
  __HAL_LOCK(hdac);
  
  /* Change DAC state */
  hdac->State = HAL_DAC_STATE_BUSY;
  
  /* Enable the Peripheral */
  __HAL_DAC_ENABLE(hdac, Channel);
  
  /* Change DAC state */
  hdac->State = HAL_DAC_STATE_READY;
  
  /* Process unlocked */
  __HAL_UNLOCK(hdac);
    
  /* Return function status */
  return HAL_OK;
}

/**
  * @brief  Returns the last data output value of the selected DAC channel.
  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
  *         the configuration information for the specified DAC.
  * @param  Channel: The selected DAC channel. 
  *          This parameter can be one of the following values:
  *            @arg DAC_CHANNEL_1: DAC Channel1 selected
  *            @arg DAC_CHANNEL_2: DAC Channel2 selected
  * @retval The selected DAC channel data output value.
  */
uint32_t HAL_DAC_GetValue(DAC_HandleTypeDef* hdac, uint32_t Channel)
{
  /* Check the parameters */
  assert_param(IS_DAC_CHANNEL(Channel));
  
  /* Returns the DAC channel data output register value */
#if defined (STM32L451xx)  || defined (STM32L452xx)  || defined (STM32L462xx)
  return hdac->Instance->DOR1;
#endif /* STM32L451xx STM32L452xx STM32L462xx */   

#if defined (STM32L431xx) || defined (STM32L432xx) || defined (STM32L433xx) || defined (STM32L442xx) || defined (STM32L443xx) || \
    defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || defined (STM32L496xx) || defined (STM32L4A6xx)  
  if(Channel == DAC_CHANNEL_1)
  {
    return hdac->Instance->DOR1;
  }
  else
  {
    return hdac->Instance->DOR2;
  }
#endif  /* STM32L431xx STM32L432xx STM32L433xx STM32L442xx STM32L443xx                         */
        /* STM32L471xx STM32L475xx STM32L476xx STM32L485xx STM32L486xx STM32L496xx STM32L4A6xx */
}