--- /dev/null
+/**
+ ******************************************************************************
+ * @file stm32l0xx_hal_dac.c
+ * @author MCD Application Team
+ * @version V1.2.0
+ * @date 06-February-2015
+ * @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.
+ STM32L05x & STM32L06x devices have one converter (channel1)
+ STM32L07x & STM32L08x 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 (STM32L07x/STM32L08x only)
+ (#) Channel1 & channel2 can be used independently or simultaneously in dual mode (STM32L07x/STM32L08x only)
+
+ *** 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_Pin9) using DAC_Trigger_Ext_IT9.
+ The used pin (GPIOx_Pin9) must be configured in input mode.
+
+ (#) Timers TRGO:
+ STM32L05x/STM32L06x : TIM2, TIM6 and TIM21
+ STM32L07x/STM32L08x : TIM2, TIM3, TIM6, TIM7 and TIM21
+ (DAC_Trigger_T2_TRGO, DAC_Trigger_T6_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.
+
+ *** DAC wave generation feature ***
+ ===================================
+ [..]
+ Both DAC channels can be used to generate
+ (#) Noise wave using HAL_DACEx_NoiseWaveGenerate()
+ (#) Triangle wave using HAL_DACEx_TriangleWaveGenerate()
+
+ *** 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 correspondence ***
+ ================================================
+ [..]
+ 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 Request9 channel2 which must be
+ already configured
+ (#) DAC channel2 : mapped on DMA1 Request15 channel4 which must be
+ already configured (STM32L07x/STM32L08x only)
+
+ -@- For Dual mode (STM32L07x/STM32L08x only) and specific signal Triangle and noise generation please
+ refer to Extension Features Driver description
+
+
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ (+) DAC APB clock must be enabled to get write access to DAC
+ registers using HAL_DAC_Init()
+ (+) Configure DAC_OUT1: PA4 in analog mode.
+ (+) Configure DAC_OUT2: PA5 in analog mode (STM32L07x/STM32L08x only).
+ (+) 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 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_DAC_ConvHalfCpltCallbackCh2()
+ function is executed and user can add his own code by customization of function pointer
+ HAL_DAC_ConvHalfCpltCallbackCh1 or HAL_DAC_ConvHalfCpltCallbackCh2
+ (+) At The end of data transfer HAL_DAC_ConvCpltCallbackCh1()or HAL_DAC_ConvCpltCallbackCh2()
+ function is executed and user can add his own code by customization of function pointer
+ HAL_DAC_ConvCpltCallbackCh1 or HAL_DAC_ConvCpltCallbackCh2
+ (+) 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_DAC_DMAUnderrunCallbackCh2()
+ function is executed and user can add his own code by customization of function pointer
+ HAL_DAC_DMAUnderrunCallbackCh1 or HAL_DAC_DMAUnderrunCallbackCh2
+ 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) 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.
+ *
+ ******************************************************************************
+ */
+
+
+#if !defined (STM32L031xx) && !defined (STM32L041xx) && !defined (STM32L051xx) && !defined (STM32L061xx) && !defined (STM32L071xx) && !defined (STM32L081xx)
+/* Includes ------------------------------------------------------------------*/
+#include "stm32l0xx_hal.h"
+
+#ifdef HAL_DAC_MODULE_ENABLED
+/** @addtogroup STM32L0xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup DAC DAC HAL module driver
+ * @brief DAC driver modules
+ * @{
+ */
+
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+
+/* Private 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 Initializes the DAC peripheral according to the specified parameters
+ * in the DAC_InitStruct.
+ * @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)
+ {
+ /* 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 Deinitializes 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 Initializes 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)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_DAC_MspInit could be implemented in the user file
+ */
+}
+
+/**
+ * @brief DeInitializes 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)
+{
+ /* 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.
+ (+) Get result of conversion.
+ (+) Get result of dual mode conversion (STM32L07xx/STM32L08xx only)
+
+@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)
+{
+ /* Note : This function is defined into this file for library reference. */
+ /* Function content is located into file stm32l0xx_hal_dac_ex.c */
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @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 (STM32L07x/STM32L08x only)
+ * @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 using DMA.
+ * @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 (STM32L07x/STM32L08x only)
+ * @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)
+{
+ /* Note : This function is defined into this file for library reference. */
+ /* Function content is located into file stm32l0xx_hal_dac_ex.c */
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @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 (STM32L07x/STM32L08x only)
+ * @retval HAL status
+ */
+__weak HAL_StatusTypeDef HAL_DAC_Stop_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel)
+{
+ /* Note : This function is defined into this file for library reference. */
+ /* Function content is located into file stm32l0xx_hal_dac_ex.c */
+
+ /* 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 (STM32L07x/STM32L08x only)
+ * @retval The selected DAC channel data output value.
+ */
+__weak uint32_t HAL_DAC_GetValue(DAC_HandleTypeDef* hdac, uint32_t Channel)
+{
+ /* Note : This function is defined into this file for library reference. */
+ /* Function content is located into file stm32l0xx_hal_dac_ex.c */
+
+ /* Return function status */
+ return 0;
+}
+
+/**
+ * @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)
+{
+ /* Note : This function is defined into this file for library reference. */
+ /* Function content is located into file stm32l0xx_hal_dac_ex.c */
+
+}
+
+/**
+ * @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)
+{
+ /* 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)
+{
+ /* 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)
+{
+ /* 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)
+{
+ /* 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.
+ (+) Set the specified data holding register value for DAC channel.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @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 (STM32L07x/STM32L08x only)
+ * @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_CHANNEL(Channel));
+
+ /* Process locked */
+ __HAL_LOCK(hdac);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_BUSY;
+
+ /* Get the DAC CR value */
+ tmpreg1 = hdac->Instance->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);
+ /* 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 */
+ hdac->Instance->CR = tmpreg1;
+ /* Disable wave generation */
+ CLEAR_BIT(hdac->Instance->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 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 (STM32L07x/STM32L08x only)
+ * @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
+ */
+__weak HAL_StatusTypeDef HAL_DAC_SetValue(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Alignment, uint32_t Data)
+{
+ /* Note : This function is defined into this file for library reference. */
+ /* Function content is located into file stm32l0xx_hal_dac_ex.c */
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @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 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 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;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup DAC_Private_Functions
+ * @{
+ */
+
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+#endif /* HAL_DAC_MODULE_ENABLED */
+#endif /* !STM32L031xx && !STM32L041xx && !STM32L051xx && !STM32L061xx&& !STM32L071xx&& !STM32L081xx*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
projects / qmk_firmware.git / blobdiff