Diff: Src/stm32l4xx_hal_dac_ex.c

Revision:

0:80ee8f3b695e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Src/stm32l4xx_hal_dac_ex.c	Mon Nov 02 19:37:23 2015 +0000
@@ -0,0 +1,609 @@
+/**
+  ******************************************************************************
+  * @file    stm32l4xx_hal_dac_ex.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    16-September-2015
+  * @brief   DAC HAL module driver.
+  *          This file provides firmware functions to manage the extended 
+  *          functionalities of the DAC peripheral.  
+  *     
+  *
+  @verbatim      
+  ==============================================================================
+                      ##### How to use this driver #####
+  ==============================================================================
+    [..]          
+      (+) When Dual mode is enabled (i.e. DAC Channel1 and Channel2 are used simultaneously) :
+          Use HAL_DACEx_DualGetValue() to get digital data to be converted and use
+          HAL_DACEx_DualSetValue() to set digital value to converted simultaneously in Channel 1 and Channel 2.  
+      (+) Use HAL_DACEx_TriangleWaveGenerate() to generate Triangle signal.
+      (+) Use HAL_DACEx_NoiseWaveGenerate() to generate Noise signal.
+
+      (+) HAL_DACEx_SelfCalibrate to calibrate one DAC channel.
+      (+) HAL_DACEx_SetUserTrimming to set user trimming value.
+      (+) HAL_DACEx_GetTrimOffset to retrieve trimming value (factory setting 
+          after reset, user setting if HAL_DACEx_SetUserTrimming have been used 
+          at least one time after reset).
+
+ @endverbatim    
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */ 
+
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32l4xx_hal.h"
+
+/** @addtogroup STM32L4xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup DACEx DACEx
+  * @brief DAC Extended HAL module driver
+  * @{
+  */ 
+
+#ifdef HAL_DAC_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Exported functions --------------------------------------------------------*/
+  
+/** @defgroup DACEx_Exported_Functions DACEx Exported Functions
+  * @{
+  */
+
+/** @defgroup DACEx_Exported_Functions_Group2 IO operation functions
+ *  @brief    Extended IO operation functions 
+ *
+@verbatim   
+  ==============================================================================
+                 ##### Extended features functions #####
+  ==============================================================================  
+    [..]  This section provides functions allowing to:
+      (+) Start conversion.
+      (+) Stop conversion.
+      (+) Start conversion and enable DMA transfer.
+      (+) Stop conversion and disable DMA transfer.
+      (+) Get result of conversion.
+      (+) Get result of dual mode conversion.
+                     
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Enable or disable the selected DAC channel wave generation.
+  * @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:
+  *            DAC_CHANNEL_1 / DAC_CHANNEL_2
+  * @param  Amplitude: Select max triangle amplitude. 
+  *          This parameter can be one of the following values:
+  *            @arg DAC_TRIANGLEAMPLITUDE_1: Select max triangle amplitude of 1
+  *            @arg DAC_TRIANGLEAMPLITUDE_3: Select max triangle amplitude of 3
+  *            @arg DAC_TRIANGLEAMPLITUDE_7: Select max triangle amplitude of 7
+  *            @arg DAC_TRIANGLEAMPLITUDE_15: Select max triangle amplitude of 15
+  *            @arg DAC_TRIANGLEAMPLITUDE_31: Select max triangle amplitude of 31
+  *            @arg DAC_TRIANGLEAMPLITUDE_63: Select max triangle amplitude of 63
+  *            @arg DAC_TRIANGLEAMPLITUDE_127: Select max triangle amplitude of 127
+  *            @arg DAC_TRIANGLEAMPLITUDE_255: Select max triangle amplitude of 255
+  *            @arg DAC_TRIANGLEAMPLITUDE_511: Select max triangle amplitude of 511
+  *            @arg DAC_TRIANGLEAMPLITUDE_1023: Select max triangle amplitude of 1023
+  *            @arg DAC_TRIANGLEAMPLITUDE_2047: Select max triangle amplitude of 2047
+  *            @arg DAC_TRIANGLEAMPLITUDE_4095: Select max triangle amplitude of 4095                               
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_DACEx_TriangleWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude)
+{  
+  /* Check the parameters */
+  assert_param(IS_DAC_CHANNEL(Channel));
+  assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude));
+  
+  /* Process locked */
+  __HAL_LOCK(hdac);
+  
+  /* Change DAC state */
+  hdac->State = HAL_DAC_STATE_BUSY;
+  
+  /* Enable the triangle wave generation for the selected DAC channel */
+  MODIFY_REG(hdac->Instance->CR, ((DAC_CR_WAVE1)|(DAC_CR_MAMP1))<<Channel, (DAC_CR_WAVE1_1 | Amplitude) << Channel);
+  
+  /* Change DAC state */
+  hdac->State = HAL_DAC_STATE_READY;
+  
+  /* Process unlocked */
+  __HAL_UNLOCK(hdac);
+  
+  /* Return function status */
+  return HAL_OK;
+}
+
+/**
+  * @brief  Enable or disable the selected DAC channel wave generation.
+  * @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:
+  *            DAC_CHANNEL_1 / DAC_CHANNEL_2
+  * @param  Amplitude: Unmask DAC channel LFSR for noise wave generation. 
+  *          This parameter can be one of the following values: 
+  *            @arg DAC_LFSRUNMASK_BIT0: Unmask DAC channel LFSR bit0 for noise wave generation
+  *            @arg DAC_LFSRUNMASK_BITS1_0: Unmask DAC channel LFSR bit[1:0] for noise wave generation  
+  *            @arg DAC_LFSRUNMASK_BITS2_0: Unmask DAC channel LFSR bit[2:0] for noise wave generation
+  *            @arg DAC_LFSRUNMASK_BITS3_0: Unmask DAC channel LFSR bit[3:0] for noise wave generation 
+  *            @arg DAC_LFSRUNMASK_BITS4_0: Unmask DAC channel LFSR bit[4:0] for noise wave generation 
+  *            @arg DAC_LFSRUNMASK_BITS5_0: Unmask DAC channel LFSR bit[5:0] for noise wave generation 
+  *            @arg DAC_LFSRUNMASK_BITS6_0: Unmask DAC channel LFSR bit[6:0] for noise wave generation 
+  *            @arg DAC_LFSRUNMASK_BITS7_0: Unmask DAC channel LFSR bit[7:0] for noise wave generation 
+  *            @arg DAC_LFSRUNMASK_BITS8_0: Unmask DAC channel LFSR bit[8:0] for noise wave generation 
+  *            @arg DAC_LFSRUNMASK_BITS9_0: Unmask DAC channel LFSR bit[9:0] for noise wave generation 
+  *            @arg DAC_LFSRUNMASK_BITS10_0: Unmask DAC channel LFSR bit[10:0] for noise wave generation 
+  *            @arg DAC_LFSRUNMASK_BITS11_0: Unmask DAC channel LFSR bit[11:0] for noise wave generation 
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_DACEx_NoiseWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude)
+{   
+  /* Check the parameters */
+  assert_param(IS_DAC_CHANNEL(Channel));
+  assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude));
+  
+  /* Process locked */
+  __HAL_LOCK(hdac);
+  
+  /* Change DAC state */
+  hdac->State = HAL_DAC_STATE_BUSY;
+     
+  /* Enable the noise wave generation for the selected DAC channel */
+  MODIFY_REG(hdac->Instance->CR, ((DAC_CR_WAVE1)|(DAC_CR_MAMP1))<<Channel, (DAC_CR_WAVE1_0 | Amplitude) << Channel);
+  
+  /* Change DAC state */
+  hdac->State = HAL_DAC_STATE_READY;
+  
+  /* Process unlocked */
+  __HAL_UNLOCK(hdac);
+  
+  /* Return function status */
+  return HAL_OK;
+}
+
+
+
+/**
+  * @brief  Set the specified data holding register value for dual 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 dual channel DAC.
+  *          This parameter can be one of the following values:
+  *            DAC_ALIGN_8B_R: 8bit right data alignment selected
+  *            DAC_ALIGN_12B_L: 12bit left data alignment selected
+  *            DAC_ALIGN_12B_R: 12bit right data alignment selected
+  * @param  Data1: Data for DAC Channel2 to be loaded in the selected data holding register.
+  * @param  Data2: Data for DAC Channel1 to be loaded in the selected data  holding register.
+  * @note   In dual mode, a unique register access is required to write in both
+  *          DAC channels at the same time.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_DACEx_DualSetValue(DAC_HandleTypeDef* hdac, uint32_t Alignment, uint32_t Data1, uint32_t Data2)
+{  
+  uint32_t data = 0, tmp = 0;
+  
+  /* Check the parameters */
+  assert_param(IS_DAC_ALIGN(Alignment));
+  assert_param(IS_DAC_DATA(Data1));
+  assert_param(IS_DAC_DATA(Data2));
+  
+  /* Calculate and set dual DAC data holding register value */
+  if (Alignment == DAC_ALIGN_8B_R)
+  {
+    data = ((uint32_t)Data2 << 8) | Data1; 
+  }
+  else
+  {
+    data = ((uint32_t)Data2 << 16) | Data1;
+  }
+  
+  tmp = (uint32_t)hdac->Instance;
+  tmp += DAC_DHR12RD_ALIGNMENT(Alignment);
+
+  /* Set the dual DAC selected data holding register */
+  *(__IO uint32_t *)tmp = data;
+  
+  /* Return function status */
+  return HAL_OK;
+}
+
+/**
+  * @brief  Conversion complete callback in non-blocking mode for Channel2.
+  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
+  *         the configuration information for the specified DAC.
+  * @retval None
+  */
+__weak void HAL_DACEx_ConvCpltCallbackCh2(DAC_HandleTypeDef* hdac)
+{
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_DACEx_ConvCpltCallbackCh2 could be implemented in the user file
+   */
+}
+
+/**
+  * @brief  Conversion half DMA transfer callback in non-blocking mode for Channel2. 
+  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
+  *         the configuration information for the specified DAC.
+  * @retval None
+  */
+__weak void HAL_DACEx_ConvHalfCpltCallbackCh2(DAC_HandleTypeDef* hdac)
+{
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_DACEx_ConvHalfCpltCallbackCh2 could be implemented in the user file
+   */
+}
+
+/**
+  * @brief  Error DAC callback for Channel2.
+  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
+  *         the configuration information for the specified DAC.
+  * @retval None
+  */
+__weak void HAL_DACEx_ErrorCallbackCh2(DAC_HandleTypeDef *hdac)
+{
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_DACEx_ErrorCallbackCh2 could be implemented in the user file
+   */
+}
+
+/**
+  * @brief  DMA underrun DAC callback for Channel2.
+  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
+  *         the configuration information for the specified DAC.
+  * @retval None
+  */
+__weak void HAL_DACEx_DMAUnderrunCallbackCh2(DAC_HandleTypeDef *hdac)
+{
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_DACEx_DMAUnderrunCallbackCh2 could be implemented in the user file
+   */
+}
+
+/**
+  * @brief  Run the self calibration of one DAC channel.
+  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
+  *         the configuration information for the specified DAC.
+  * @param  sConfig: DAC channel configuration structure.
+  * @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 Updates DAC_TrimmingValue. , DAC_UserTrimming set to DAC_UserTrimming
+  * @retval HAL status
+  * @note   Calibration runs about 7 ms.
+  */
+
+HAL_StatusTypeDef HAL_DACEx_SelfCalibrate (DAC_HandleTypeDef* hdac, DAC_ChannelConfTypeDef* sConfig, uint32_t Channel)
+{ 
+  HAL_StatusTypeDef status = HAL_OK;
+   
+  __IO uint32_t tmp = 0;
+  uint32_t trimmingvalue = 0;
+  uint32_t delta;
+  
+  /* store/restore channel configuration structure purpose */
+  uint32_t oldmodeconfiguration = 0;
+  
+  /* Check the parameters */
+  assert_param(IS_DAC_CHANNEL(Channel));
+    
+ /* Check the DAC handle allocation */
+ /* Check if DAC running */
+  if((hdac == NULL) || (hdac->State == HAL_DAC_STATE_BUSY))
+  {
+    status = HAL_ERROR;
+  }
+  
+  /* Process locked */
+  __HAL_LOCK(hdac);
+  
+  /* Store configuration */
+  oldmodeconfiguration = (hdac->Instance->MCR & (DAC_MCR_MODE1 << Channel));
+  
+  /* Disable the selected DAC channel */
+  CLEAR_BIT ((hdac->Instance->CR), (DAC_CR_EN1 << Channel));
+  
+  /* Set mode in MCR  for calibration */
+   MODIFY_REG(hdac->Instance->MCR, (DAC_MCR_MODE1 << Channel), 0);
+   
+  /* Set DAC Channel1 DHR register to the middle value */
+  /* HAL_DAC_SetValue(hdac, Channel, DAC_ALIGN_12B_R, 0x0800); */
+  tmp = (uint32_t)hdac->Instance; 
+  if(Channel == DAC_CHANNEL_1)
+  {
+    tmp += DAC_DHR12R1_ALIGNMENT(DAC_ALIGN_12B_R);
+  }
+  else
+  {
+    tmp += DAC_DHR12R2_ALIGNMENT(DAC_ALIGN_12B_R);
+  }
+  *(__IO uint32_t *) tmp = 0x0800;
+     
+  /* Enable the selected DAC channel calibration */
+  /* i.e. set DAC_CR_CENx bit */
+  SET_BIT ((hdac->Instance->CR), (DAC_CR_CEN1 << Channel));
+  
+  /* Init trimming counter */    
+  /* Medium value */
+  trimmingvalue = 16; 
+  delta = 8;
+  while (delta != 0) 
+    {
+    /* Set candidate trimming */
+    MODIFY_REG(hdac->Instance->CCR, (DAC_CCR_OTRIM1<<Channel), (trimmingvalue<<Channel));
+  
+    /* tOFFTRIMmax delay x ms as per datasheet (electrical characteristics */ 
+    /* i.e. minimum time needed between two calibration steps */
+    HAL_Delay(1);
+  
+    if ((hdac->Instance->SR & (DAC_SR_CAL_FLAG1<<Channel)) == RESET)
+      { 
+        /* DAC_SR_CAL_FLAGx is HIGH try higher trimming */
+        trimmingvalue += delta;
+      }
+      else
+      {
+        /* DAC_SR_CAL_FLAGx is LOW try lower trimming */
+        trimmingvalue -= delta;
+       }                   
+     delta >>= 1;
+    }
+  
+    /* Still need to check if right calibration is current value or one step below */
+    /* Indeed the first value that causes the DAC_SR_CAL_FLAGx bit to change from 0 to 1  */
+    /* Set candidate trimming */
+    MODIFY_REG(hdac->Instance->CCR, (DAC_CCR_OTRIM1<<Channel), (trimmingvalue<<Channel));
+  
+    /* tOFFTRIMmax delay x ms as per datasheet (electrical characteristics */ 
+    /* i.e. minimum time needed between two calibration steps */
+    HAL_Delay(1);
+    
+    if ((hdac->Instance->SR & (DAC_SR_CAL_FLAG1<<Channel)) == RESET)
+      { 
+      /* OPAMP_CSR_OUTCAL is actually one value more */
+      trimmingvalue++;
+      /* Set right trimming */
+        MODIFY_REG(hdac->Instance->CCR, (DAC_CCR_OTRIM1<<Channel), (trimmingvalue<<Channel));
+      }
+    
+  /* Disable the selected DAC channel calibration */
+  /* i.e. clear DAC_CR_CENx bit */
+  CLEAR_BIT ((hdac->Instance->CR), (DAC_CR_CEN1 << Channel));
+  
+  sConfig->DAC_TrimmingValue = trimmingvalue;
+  sConfig->DAC_UserTrimming = DAC_TRIMMING_USER;
+  
+  /* Restore configuration */
+  MODIFY_REG(hdac->Instance->MCR, (DAC_MCR_MODE1 << Channel), oldmodeconfiguration);
+  
+  /* Process unlocked */
+  __HAL_UNLOCK(hdac);
+  
+  return status;
+}
+
+/**
+  * @brief  Set the trimming mode and trimming value (user trimming mode applied).
+  * @param  hdac: pointer to a DAC_HandleTypeDef structure that contains
+  *         the configuration information for the specified DAC.
+  * @param  sConfig: DAC configuration structure updated with new DAC trimming value.
+  * @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
+  * @param  NewTrimmingValue: DAC new trimming value
+  * @retval HAL status
+  */
+
+HAL_StatusTypeDef HAL_DACEx_SetUserTrimming (DAC_HandleTypeDef* hdac, DAC_ChannelConfTypeDef* sConfig, uint32_t Channel, uint32_t NewTrimmingValue)
+{ 
+  HAL_StatusTypeDef status = HAL_OK;
+     
+  /* Check the parameters */
+  assert_param(IS_DAC_CHANNEL(Channel));
+  assert_param(IS_DAC_NEWTRIMMINGVALUE(NewTrimmingValue));
+  
+ /* Check the DAC handle allocation */
+  if(hdac == NULL)
+  {
+    status = HAL_ERROR;
+  }
+  
+  /* Process locked */
+  __HAL_LOCK(hdac);
+  
+  /* Set new trimming */
+  MODIFY_REG(hdac->Instance->CCR, (DAC_CCR_OTRIM1<<Channel), (NewTrimmingValue<<Channel));
+  
+  /* Update trimming mode */
+  sConfig->DAC_UserTrimming = DAC_TRIMMING_USER;
+  sConfig->DAC_TrimmingValue = NewTrimmingValue;
+  
+  /* Process unlocked */
+  __HAL_UNLOCK(hdac);
+    
+  return status;
+}
+
+/**
+  * @brief  Return the DAC trimming value.
+  * @param  hdac : DAC handle
+  * @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 Trimming value : range: 0->31
+  *         
+ */
+
+uint32_t HAL_DACEx_GetTrimOffset (DAC_HandleTypeDef *hdac, uint32_t Channel)
+{
+  uint32_t trimmingvalue = 0;
+  
+  /* Check the DAC handle allocation */
+  /* And not in Reset state */
+  if((hdac == NULL) || (hdac->State == HAL_DAC_STATE_RESET))
+  {
+    return HAL_ERROR;
+  }
+  else
+  {
+    /* Check the parameter */
+    assert_param(IS_DAC_CHANNEL(Channel));
+
+    /* Retrieve trimming  */
+    trimmingvalue = ((hdac->Instance->CCR & (DAC_CCR_OTRIM1 << Channel)) >> Channel);
+  }  
+  return trimmingvalue;
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup DACEx_Exported_Functions_Group3 Peripheral Control functions
+ *  @brief    Extended Peripheral Control functions 
+ *
+@verbatim   
+  ==============================================================================
+             ##### Peripheral Control functions #####
+  ==============================================================================  
+    [..]  This section provides functions allowing to:
+      (+) Configure channels. 
+      (+) Set the specified data holding register value for DAC channel.
+      
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Return 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.
+  * @retval The selected DAC channel data output value.
+  */
+uint32_t HAL_DACEx_DualGetValue(DAC_HandleTypeDef* hdac)
+{
+  uint32_t tmp = 0;
+  
+  tmp |= hdac->Instance->DOR1;
+
+  tmp |= hdac->Instance->DOR2 << 16;
+  
+  /* Returns the DAC channel data output register value */
+  return tmp;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/* Private functions ---------------------------------------------------------*/
+/** @defgroup DACEx_Private_Functions DACEx private functions
+ *  @brief    Extended private functions
+   * @{
+  */
+
+/**
+  * @brief  DMA conversion complete callback. 
+  * @param  hdma: pointer to a DMA_HandleTypeDef structure that contains
+  *                the configuration information for the specified DMA module.
+  * @retval None
+  */
+void DAC_DMAConvCpltCh2(DMA_HandleTypeDef *hdma)   
+{
+  DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+  
+  HAL_DACEx_ConvCpltCallbackCh2(hdac); 
+  
+  hdac->State= HAL_DAC_STATE_READY;
+}
+
+/**
+  * @brief  DMA half transfer complete callback. 
+  * @param  hdma: pointer to a DMA_HandleTypeDef structure that contains
+  *                the configuration information for the specified DMA module.
+  * @retval None
+  */
+void DAC_DMAHalfConvCpltCh2(DMA_HandleTypeDef *hdma)   
+{
+    DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+    /* Conversion complete callback */
+    HAL_DACEx_ConvHalfCpltCallbackCh2(hdac); 
+}
+
+/**
+  * @brief  DMA error callback.
+  * @param  hdma: pointer to a DMA_HandleTypeDef structure that contains
+  *                the configuration information for the specified DMA module.
+  * @retval None
+  */
+void DAC_DMAErrorCh2(DMA_HandleTypeDef *hdma)   
+{
+  DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+    
+  /* Set DAC error code to DMA error */
+  hdac->ErrorCode |= HAL_DAC_ERROR_DMA;
+    
+  HAL_DACEx_ErrorCallbackCh2(hdac); 
+    
+  hdac->State= HAL_DAC_STATE_READY;
+}
+
+/**
+  * @}
+  */
+
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+