|
- /**
- ******************************************************************************
- * @file stm32f0xx_hal_dac.c
- * @author MCD Application Team
- * @brief DAC HAL module driver.
- * This file provides firmware functions to manage the following
- * functionalities of the Digital to Analog Converter (DAC) peripheral:
- * + Initialization and de-initialization functions
- * + IO operation functions
- * + Peripheral Control functions
- * + Peripheral State and Errors functions
- *
- *
- @verbatim
- ==============================================================================
- ##### DAC Peripheral features #####
- ==============================================================================
- [..]
- *** DAC Channels ***
- ====================
- [..]
- STM32F0 devices integrates no, one or two 12-bit Digital Analog Converters.
- STM32F05x devices have one converter (channel1)
- STM32F07x & STM32F09x devices have two converters (i.e. channel1 & channel2)
-
- When 2 converters are present (i.e. channel1 & channel2) they
- can be used independently or simultaneously (dual mode):
- (#) DAC channel1 with DAC_OUT1 (PA4) as output
- (#) DAC channel2 with DAC_OUT2 (PA5) as output
-
- *** DAC Triggers ***
- ====================
- [..]
- Digital to Analog conversion can be non-triggered using DAC_TRIGGER_NONE
- and DAC_OUT1/DAC_OUT2 is available once writing to DHRx register.
- [..]
- Digital to Analog conversion can be triggered by:
- (#) External event: EXTI Line 9 (any GPIOx_PIN_9) using DAC_TRIGGER_EXT_IT9.
- The used pin (GPIOx_PIN_9) must be configured in input mode.
-
- (#) Timers TRGO: TIM2, TIM3, TIM6, and TIM15
- (DAC_TRIGGER_T2_TRGO, DAC_TRIGGER_T3_TRGO...)
-
- (#) Software using DAC_TRIGGER_SOFTWARE
-
- *** DAC Buffer mode feature ***
- ===============================
- [..]
- Each DAC channel integrates an output buffer that can be used to
- reduce the output impedance, and to drive external loads directly
- without having to add an external operational amplifier.
- To enable, the output buffer use
- sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
- [..]
- (@) Refer to the device datasheet for more details about output
- impedance value with and without output buffer.
-
- *** GPIO configurations guidelines ***
- =====================
- [..]
- When a DAC channel is used (ex channel1 on PA4) and the other is not
- (ex channel1 on PA5 is configured in Analog and disabled).
- Channel1 may disturb channel2 as coupling effect.
- Note that there is no coupling on channel2 as soon as channel2 is turned on.
- Coupling on adjacent channel could be avoided as follows:
- when unused PA5 is configured as INPUT PULL-UP or DOWN.
- PA5 is configured in ANALOG just before it is turned on.
-
- *** DAC wave generation feature ***
- ===================================
- [..]
- Both DAC channels can be used to generate
- (#) Noise wave
- (#) Triangle wave
-
- *** DAC data format ***
- =======================
- [..]
- The DAC data format can be:
- (#) 8-bit right alignment using DAC_ALIGN_8B_R
- (#) 12-bit left alignment using DAC_ALIGN_12B_L
- (#) 12-bit right alignment using DAC_ALIGN_12B_R
-
- *** DAC data value to voltage correspondance ***
- ================================================
- [..]
- The analog output voltage on each DAC channel pin is determined
- by the following equation:
- [..]
- DAC_OUTx = VREF+ * DOR / 4095
- (+) with DOR is the Data Output Register
- [..]
- VEF+ is the input voltage reference (refer to the device datasheet)
- [..]
- e.g. To set DAC_OUT1 to 0.7V, use
- (+) Assuming that VREF+ = 3.3V, DAC_OUT1 = (3.3 * 868) / 4095 = 0.7V
-
- *** DMA requests ***
- =====================
- [..]
- A DMA1 request can be generated when an external trigger (but not
- a software trigger) occurs if DMA1 requests are enabled using
- HAL_DAC_Start_DMA()
- [..]
- DMA1 requests are mapped as following:
- (#) DAC channel1 : mapped on DMA1 channel3 which must be
- already configured
- (#) DAC channel2 : mapped on DMA1 channel4 which must be
- already configured
-
- (@) For Dual mode and specific signal (Triangle and noise) generation please
- refer to Extended Features Driver description
- STM32F0 devices with one channel (one converting capability) does not
- support Dual mode and specific signal (Triangle and noise) generation.
-
- ##### How to use this driver #####
- ==============================================================================
- [..]
- (+) DAC APB clock must be enabled to get write access to DAC
- registers using HAL_DAC_Init()
- (+) Configure DAC_OUTx (DAC_OUT1: PA4, DAC_OUT2: PA5) in analog mode.
- (+) Configure the DAC channel using HAL_DAC_ConfigChannel() function.
- (+) Enable the DAC channel using HAL_DAC_Start() or HAL_DAC_Start_DMA() functions.
-
- *** Polling mode IO operation ***
- =================================
- [..]
- (+) Start the DAC peripheral using HAL_DAC_Start()
- (+) To read the DAC last data output value, use the HAL_DAC_GetValue() function.
- (+) Stop the DAC peripheral using HAL_DAC_Stop()
-
- *** DMA mode IO operation ***
- ==============================
- [..]
- (+) Start the DAC peripheral using HAL_DAC_Start_DMA(), at this stage the user specify the length
- of data to be transferred at each end of conversion
- (+) At the middle of data transfer HAL_DAC_ConvHalfCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
- function is executed and user can add his own code by customization of function pointer
- HAL_DAC_ConvHalfCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
- (+) At The end of data transfer HAL_DAC_ConvCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
- function is executed and user can add his own code by customization of function pointer
- HAL_DAC_ConvCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
- (+) In case of transfer Error, HAL_DAC_ErrorCallbackCh1() function is executed and user can
- add his own code by customization of function pointer HAL_DAC_ErrorCallbackCh1
- (+) In case of DMA underrun, DAC interruption triggers and execute internal function HAL_DAC_IRQHandler.
- HAL_DAC_DMAUnderrunCallbackCh1() or HAL_DACEx_DMAUnderrunCallbackCh2()
- function is executed and user can add his own code by customization of function pointer
- HAL_DAC_DMAUnderrunCallbackCh1() or HAL_DACEx_DMAUnderrunCallbackCh2() and
- add his own code by customization of function pointer HAL_DAC_ErrorCallbackCh1()
- (+) Stop the DAC peripheral using HAL_DAC_Stop_DMA()
-
- *** DAC HAL driver macros list ***
- =============================================
- [..]
- Below the list of most used macros in DAC HAL driver.
-
- (+) __HAL_DAC_ENABLE : Enable the DAC peripheral
- (+) __HAL_DAC_DISABLE : Disable the DAC peripheral
- (+) __HAL_DAC_CLEAR_FLAG: Clear the DAC's pending flags
- (+) __HAL_DAC_GET_FLAG: Get the selected DAC's flag status
-
- [..]
- (@) You can refer to the DAC HAL driver header file for more useful macros
-
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>© COPYRIGHT(c) 2016 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 "stm32f0xx_hal.h"
-
- /** @addtogroup STM32F0xx_HAL_Driver
- * @{
- */
-
- #ifdef HAL_DAC_MODULE_ENABLED
-
- #if defined(STM32F051x8) || defined(STM32F058xx) || \
- defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \
- defined(STM32F091xC) || defined (STM32F098xx)
-
- /** @defgroup DAC DAC
- * @brief DAC driver modules
- * @{
- */
-
- /* Private typedef -----------------------------------------------------------*/
- /* Private define ------------------------------------------------------------*/
- /* Private macro -------------------------------------------------------------*/
- /** @defgroup DAC_Private_Macros DAC Private Macros
- * @{
- */
- /**
- * @}
- */
-
- /* Private variables ---------------------------------------------------------*/
- /* Private function prototypes -----------------------------------------------*/
- /** @defgroup DAC_Private_Functions DAC Private Functions
- * @{
- */
- /**
- * @}
- */
-
- /* Exported functions -------------------------------------------------------*/
-
- /** @defgroup DAC_Exported_Functions DAC Exported Functions
- * @{
- */
-
- /** @defgroup DAC_Exported_Functions_Group1 Initialization and de-initialization functions
- * @brief Initialization and Configuration functions
- *
- @verbatim
- ==============================================================================
- ##### Initialization and de-initialization functions #####
- ==============================================================================
- [..] This section provides functions allowing to:
- (+) Initialize and configure the DAC.
- (+) De-initialize the DAC.
-
- @endverbatim
- * @{
- */
-
- /**
- * @brief Initialize the DAC peripheral according to the specified parameters
- * in the DAC_InitStruct and initialize the associated handle.
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_DAC_Init(DAC_HandleTypeDef* hdac)
- {
- /* Check DAC handle */
- if(hdac == NULL)
- {
- return HAL_ERROR;
- }
- /* Check the parameters */
- assert_param(IS_DAC_ALL_INSTANCE(hdac->Instance));
-
- if(hdac->State == HAL_DAC_STATE_RESET)
- {
- /* Allocate lock resource and initialize it */
- hdac->Lock = HAL_UNLOCKED;
-
- /* Init the low level hardware */
- HAL_DAC_MspInit(hdac);
- }
-
- /* Initialize the DAC state*/
- hdac->State = HAL_DAC_STATE_BUSY;
-
- /* Set DAC error code to none */
- hdac->ErrorCode = HAL_DAC_ERROR_NONE;
-
- /* Initialize the DAC state*/
- hdac->State = HAL_DAC_STATE_READY;
-
- /* Return function status */
- return HAL_OK;
- }
-
- /**
- * @brief Deinitialize the DAC peripheral registers to their default reset values.
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval HAL status
- */
- HAL_StatusTypeDef HAL_DAC_DeInit(DAC_HandleTypeDef* hdac)
- {
- /* Check DAC handle */
- if(hdac == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_DAC_ALL_INSTANCE(hdac->Instance));
-
- /* Change DAC state */
- hdac->State = HAL_DAC_STATE_BUSY;
-
- /* DeInit the low level hardware */
- HAL_DAC_MspDeInit(hdac);
-
- /* Set DAC error code to none */
- hdac->ErrorCode = HAL_DAC_ERROR_NONE;
-
- /* Change DAC state */
- hdac->State = HAL_DAC_STATE_RESET;
-
- /* Release Lock */
- __HAL_UNLOCK(hdac);
-
- /* Return function status */
- return HAL_OK;
- }
-
- /**
- * @brief Initialize the DAC MSP.
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval None
- */
- __weak void HAL_DAC_MspInit(DAC_HandleTypeDef* hdac)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
-
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_DAC_MspInit could be implemented in the user file
- */
- }
-
- /**
- * @brief DeInitialize the DAC MSP.
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval None
- */
- __weak void HAL_DAC_MspDeInit(DAC_HandleTypeDef* hdac)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
-
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_DAC_MspDeInit could be implemented in the user file
- */
- }
-
- /**
- * @}
- */
-
- /** @defgroup DAC_Exported_Functions_Group2 IO operation functions
- * @brief IO operation functions
- *
- @verbatim
- ==============================================================================
- ##### IO operation functions #####
- ==============================================================================
- [..] This section provides functions allowing to:
- (+) Start conversion.
- (+) Stop conversion.
- (+) Start conversion and enable DMA transfer.
- (+) Stop conversion and disable DMA transfer.
- (+) Set the specified data holding register value for DAC channel.
-
- @endverbatim
- * @{
- */
-
- /**
- * @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
- */
- __weak HAL_StatusTypeDef HAL_DAC_Start(DAC_HandleTypeDef* hdac, uint32_t Channel)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
- UNUSED(Channel);
-
- /* Note : This function is defined into this file for library reference. */
- /* Function content is located into file stm32f0xx_hal_dac_ex.c */
-
- /* Return error status as not implemented here */
- return HAL_ERROR;
- }
-
- /**
- * @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(DAC_HandleTypeDef* hdac, uint32_t Channel)
- {
- /* Check the parameters */
- assert_param(IS_DAC_CHANNEL(Channel));
-
- /* Disable the Peripheral */
- __HAL_DAC_DISABLE(hdac, Channel);
-
- /* Change DAC state */
- hdac->State = HAL_DAC_STATE_READY;
-
- /* 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
- * @param pData The destination peripheral Buffer address.
- * @param Length The length of data to be transferred from memory to DAC peripheral
- * @param Alignment Specifies the data alignment for DAC channel.
- * 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
- * @retval HAL status
- */
- __weak HAL_StatusTypeDef HAL_DAC_Start_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t* pData, uint32_t Length, uint32_t Alignment)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
- UNUSED(Channel);
- UNUSED(pData);
- UNUSED(Length);
- UNUSED(Alignment);
-
- /* Note : This function is defined into this file for library reference. */
- /* Function content is located into file stm32f0xx_hal_dac_ex.c */
-
- /* Return error status as not implemented here */
- return HAL_ERROR;
- }
-
- /**
- * @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);
- }
-
- #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \
- defined(STM32F091xC) || defined (STM32F098xx)
- /* Does not apply to STM32F051x8 & STM32F058xx */
-
- 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);
- }
- #endif /* STM32F071xB || STM32F072xB || STM32F078xx || */
- /* STM32F091xC || STM32F098xx */
-
- /* 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 Handles DAC interrupt request
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval None
- */
- __weak void HAL_DAC_IRQHandler(DAC_HandleTypeDef* hdac)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
-
- /* Note : This function is defined into this file for library reference. */
- /* Function content is located into file stm32f0xx_hal_dac_ex.c */
- }
-
- /**
- * @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
- * @arg DAC_CHANNEL_2: DAC Channel2 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 = 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)hdac->Instance;
- if(Channel == DAC_CHANNEL_1)
- {
- tmp += DAC_DHR12R1_ALIGNMENT(Alignment);
- }
- else
- {
- tmp += DAC_DHR12R2_ALIGNMENT(Alignment);
- }
-
- /* Set the DAC channel1 selected data holding register */
- *(__IO uint32_t *) tmp = Data;
-
- /* Return function status */
- return HAL_OK;
- }
-
- /**
- * @brief Conversion complete callback in non blocking mode for Channel1
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval None
- */
- __weak void HAL_DAC_ConvCpltCallbackCh1(DAC_HandleTypeDef* hdac)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
-
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_DAC_ConvCpltCallbackCh1 could be implemented in the user file
- */
- }
-
- /**
- * @brief Conversion half DMA transfer callback in non-blocking mode for Channel1
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval None
- */
- __weak void HAL_DAC_ConvHalfCpltCallbackCh1(DAC_HandleTypeDef* hdac)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
-
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_DAC_ConvHalfCpltCallbackCh1 could be implemented in the user file
- */
- }
-
- /**
- * @brief Error DAC callback for Channel1.
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval None
- */
- __weak void HAL_DAC_ErrorCallbackCh1(DAC_HandleTypeDef *hdac)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
-
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_DAC_ErrorCallbackCh1 could be implemented in the user file
- */
- }
-
- /**
- * @brief DMA underrun DAC callback for channel1.
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval None
- */
- __weak void HAL_DAC_DMAUnderrunCallbackCh1(DAC_HandleTypeDef *hdac)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
-
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_DAC_DMAUnderrunCallbackCh1 could be implemented in the user file
- */
- }
-
- /**
- * @}
- */
-
- /** @defgroup DAC_Exported_Functions_Group3 Peripheral Control functions
- * @brief Peripheral Control functions
- *
- @verbatim
- ==============================================================================
- ##### Peripheral Control functions #####
- ==============================================================================
- [..] This section provides functions allowing to:
- (+) Configure channels.
- (+) Get result of conversion.
-
- @endverbatim
- * @{
- */
-
- /**
- * @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.
- */
- __weak uint32_t HAL_DAC_GetValue(DAC_HandleTypeDef* hdac, uint32_t Channel)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
- UNUSED(Channel);
-
- /* Note : This function is defined into this file for library reference. */
- /* Function content is located into file stm32f0xx_hal_dac_ex.c */
-
- /* Return error status as not implemented here */
- return HAL_ERROR;
- }
-
- /**
- * @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
- * @arg DAC_CHANNEL_2: DAC Channel2 selected
- * @retval HAL status
- */
- __weak HAL_StatusTypeDef HAL_DAC_ConfigChannel(DAC_HandleTypeDef* hdac, DAC_ChannelConfTypeDef* sConfig, uint32_t Channel)
- {
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hdac);
- UNUSED(sConfig);
- UNUSED(Channel);
-
- /* Note : This function is defined into this file for library reference. */
- /* Function content is located into file stm32f0xx_hal_dac_ex.c */
-
- /* Return error status as not implemented here */
- return HAL_ERROR;
- }
-
- /**
- * @}
- */
-
- /** @defgroup DAC_Exported_Functions_Group4 Peripheral State and Errors functions
- * @brief Peripheral State and Errors functions
- *
- @verbatim
- ==============================================================================
- ##### Peripheral State and Errors functions #####
- ==============================================================================
- [..]
- This subsection provides functions allowing to
- (+) Check the DAC state.
- (+) Check the DAC Errors.
-
- @endverbatim
- * @{
- */
-
- /**
- * @brief return the DAC handle state
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval HAL state
- */
- HAL_DAC_StateTypeDef HAL_DAC_GetState(DAC_HandleTypeDef* hdac)
- {
- /* Return DAC handle state */
- return hdac->State;
- }
-
-
- /**
- * @brief Return the DAC error code
- * @param hdac pointer to a DAC_HandleTypeDef structure that contains
- * the configuration information for the specified DAC.
- * @retval DAC Error Code
- */
- uint32_t HAL_DAC_GetError(DAC_HandleTypeDef *hdac)
- {
- return hdac->ErrorCode;
- }
-
- /**
- * @}
- */
-
-
- /**
- * @}
- */
-
- /**
- * @}
- */
- #endif /* STM32F051x8 || STM32F058xx || */
- /* STM32F071xB || STM32F072xB || STM32F078xx || */
- /* STM32F091xC || STM32F098xx */
-
- #endif /* HAL_DAC_MODULE_ENABLED */
-
- /**
- * @}
- */
-
-
- /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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