| /** |
| ****************************************************************************** |
| * @file stm32h7xx_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 |
| * |
| * |
| ****************************************************************************** |
| * @attention |
| * |
| * Copyright (c) 2017 STMicroelectronics. |
| * All rights reserved. |
| * |
| * This software is licensed under terms that can be found in the LICENSE file |
| * in the root directory of this software component. |
| * If no LICENSE file comes with this software, it is provided AS-IS. |
| * |
| ****************************************************************************** |
| @verbatim |
| ============================================================================== |
| ##### DAC Peripheral features ##### |
| ============================================================================== |
| [..] |
| *** DAC Channels *** |
| ==================== |
| [..] |
| STM32H7 devices integrate two 12-bit Digital Analog Converters |
| |
| The 2 converters (i.e. channel1 & channel2) |
| can be used independently or simultaneously (dual mode): |
| (#) DAC channel1 with DAC_OUT1 (PA4) as output or connected to on-chip |
| peripherals (ex. OPAMPs, comparators). |
| (#) DAC channel2 with DAC_OUT2 (PA5) as output or connected to on-chip |
| peripherals (ex. OPAMPs, comparators). |
| |
| *** 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: TIM1, TIM2, TIM4, TIM5, TIM6, TIM7, TIM8, TIM15, TIM23 and TIM24 |
| (DAC_TRIGGER_T1_TRGO, DAC_TRIGGER_T2_TRGO...) |
| |
| (#) Low Power Timers TRGO: LPTIM1, LPTIM2 and LPTIM3 |
| (DAC_TRIGGER_LPTIM1_OUT, DAC_TRIGGER_LPTIM2_OUT) |
| |
| (#) High Resolution Timer TRGO: HRTIM1 |
| (DAC_TRIGGER_HR1_TRGO1, DAC_TRIGGER_HR1_TRGO2) |
| |
| (#) 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 channel2 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 Sample and Hold feature *** |
| ======================== |
| [..] |
| For each converter, 2 modes are supported: normal mode and |
| "sample and hold" mode (i.e. low power mode). |
| In the sample and hold mode, the DAC core converts data, then holds the |
| converted voltage on a capacitor. When not converting, the DAC cores and |
| buffer are completely turned off between samples and the DAC output is |
| tri-stated, therefore reducing the overall power consumption. A new |
| stabilization period is needed before each new conversion. |
| |
| The sample and hold allow setting internal or external voltage @ |
| low power consumption cost (output value can be at any given rate either |
| by CPU or DMA). |
| |
| The Sample and hold block and registers uses either LSI & run in |
| several power modes: run mode, sleep mode, low power run, low power sleep |
| mode & stop1 mode. |
| |
| Low power stop1 mode allows only static conversion. |
| |
| To enable Sample and Hold mode |
| Enable LSI using HAL_RCC_OscConfig with RCC_OSCILLATORTYPE_LSI & |
| RCC_LSI_ON parameters. |
| |
| Use DAC_InitStructure.DAC_SampleAndHold = DAC_SAMPLEANDHOLD_ENABLE; |
| & DAC_ChannelConfTypeDef.DAC_SampleAndHoldConfig.DAC_SampleTime, |
| DAC_HoldTime & DAC_RefreshTime; |
| |
| *** DAC calibration feature *** |
| =================================== |
| [..] |
| (#) The 2 converters (channel1 & channel2) provide calibration capabilities. |
| (++) Calibration aims at correcting some offset of output buffer. |
| (++) The DAC uses either factory calibration settings OR user defined |
| calibration (trimming) settings (i.e. trimming mode). |
| (++) The user defined settings can be figured out using self calibration |
| handled by HAL_DACEx_SelfCalibrate. |
| (++) HAL_DACEx_SelfCalibrate: |
| (+++) Runs automatically the calibration. |
| (+++) Enables the user trimming mode |
| (+++) Updates a structure with trimming values with fresh calibration |
| results. |
| The user may store the calibration results for larger |
| (ex monitoring the trimming as a function of temperature |
| for instance) |
| |
| *** 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 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 |
| [..] |
| VREF+ 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 DMA request can be generated when an external trigger (but not a software trigger) |
| occurs if DMA requests are enabled using HAL_DAC_Start_DMA(). |
| DMA requests are mapped as following: |
| (#) DAC channel1: mapped on DMA_REQUEST_DAC1_CH1 |
| (#) DAC channel2: mapped on DMA_REQUEST_DAC1_CH2 |
| |
| [..] |
| (@) For Dual mode and specific signal (Triangle and noise) generation please |
| refer to Extended 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_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. |
| |
| *** Calibration mode IO operation *** |
| ====================================== |
| [..] |
| (+) Retrieve the factory trimming (calibration settings) using HAL_DACEx_GetTrimOffset() |
| (+) Run the calibration using HAL_DACEx_SelfCalibrate() |
| (+) Update the trimming while DAC running using HAL_DACEx_SetUserTrimming() |
| |
| *** 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 |
| First issued trigger will start the conversion of the value previously set by HAL_DAC_SetValue(). |
| (+) 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() |
| |
| *** Callback registration *** |
| ============================================= |
| [..] |
| The compilation define USE_HAL_DAC_REGISTER_CALLBACKS when set to 1 |
| allows the user to configure dynamically the driver callbacks. |
| |
| Use Functions HAL_DAC_RegisterCallback() to register a user callback, |
| it allows to register following callbacks: |
| (+) ConvCpltCallbackCh1 : callback when a half transfer is completed on Ch1. |
| (+) ConvHalfCpltCallbackCh1 : callback when a transfer is completed on Ch1. |
| (+) ErrorCallbackCh1 : callback when an error occurs on Ch1. |
| (+) DMAUnderrunCallbackCh1 : callback when an underrun error occurs on Ch1. |
| (+) ConvCpltCallbackCh2 : callback when a half transfer is completed on Ch2. |
| (+) ConvHalfCpltCallbackCh2 : callback when a transfer is completed on Ch2. |
| (+) ErrorCallbackCh2 : callback when an error occurs on Ch2. |
| (+) DMAUnderrunCallbackCh2 : callback when an underrun error occurs on Ch2. |
| (+) MspInitCallback : DAC MspInit. |
| (+) MspDeInitCallback : DAC MspdeInit. |
| This function takes as parameters the HAL peripheral handle, the Callback ID |
| and a pointer to the user callback function. |
| |
| Use function HAL_DAC_UnRegisterCallback() to reset a callback to the default |
| weak (surcharged) function. It allows to reset following callbacks: |
| (+) ConvCpltCallbackCh1 : callback when a half transfer is completed on Ch1. |
| (+) ConvHalfCpltCallbackCh1 : callback when a transfer is completed on Ch1. |
| (+) ErrorCallbackCh1 : callback when an error occurs on Ch1. |
| (+) DMAUnderrunCallbackCh1 : callback when an underrun error occurs on Ch1. |
| (+) ConvCpltCallbackCh2 : callback when a half transfer is completed on Ch2. |
| (+) ConvHalfCpltCallbackCh2 : callback when a transfer is completed on Ch2. |
| (+) ErrorCallbackCh2 : callback when an error occurs on Ch2. |
| (+) DMAUnderrunCallbackCh2 : callback when an underrun error occurs on Ch2. |
| (+) MspInitCallback : DAC MspInit. |
| (+) MspDeInitCallback : DAC MspdeInit. |
| (+) All Callbacks |
| This function) takes as parameters the HAL peripheral handle and the Callback ID. |
| |
| By default, after the HAL_DAC_Init and if the state is HAL_DAC_STATE_RESET |
| all callbacks are reset to the corresponding legacy weak (surcharged) functions. |
| Exception done for MspInit and MspDeInit callbacks that are respectively |
| reset to the legacy weak (surcharged) functions in the HAL_DAC_Init |
| and HAL_DAC_DeInit only when these callbacks are null (not registered beforehand). |
| If not, MspInit or MspDeInit are not null, the HAL_DAC_Init and HAL_DAC_DeInit |
| keep and use the user MspInit/MspDeInit callbacks (registered beforehand) |
| |
| Callbacks can be registered/unregistered in READY state only. |
| Exception done for MspInit/MspDeInit callbacks that can be registered/unregistered |
| in READY or RESET state, thus registered (user) MspInit/DeInit callbacks can be used |
| during the Init/DeInit. |
| In that case first register the MspInit/MspDeInit user callbacks |
| using HAL_DAC_RegisterCallback before calling HAL_DAC_DeInit |
| or HAL_DAC_Init function. |
| |
| When The compilation define USE_HAL_DAC_REGISTER_CALLBACKS is set to 0 or |
| not defined, the callback registering feature is not available |
| and weak (surcharged) callbacks are used. |
| |
| *** 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 |
| ****************************************************************************** |
| */ |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32h7xx_hal.h" |
| |
| /** @addtogroup STM32H7xx_HAL_Driver |
| * @{ |
| */ |
| |
| #ifdef HAL_DAC_MODULE_ENABLED |
| #if defined(DAC1) || defined(DAC2) |
| |
| /** @defgroup DAC DAC |
| * @brief DAC driver modules |
| * @{ |
| */ |
| |
| /* Private typedef -----------------------------------------------------------*/ |
| /* Private define ------------------------------------------------------------*/ |
| /* Private constants ---------------------------------------------------------*/ |
| /** @addtogroup DAC_Private_Constants DAC Private Constants |
| * @{ |
| */ |
| #define TIMEOUT_DAC_CALIBCONFIG 1U /* 1 ms */ |
| |
| /** |
| * @} |
| */ |
| |
| /* Private macro -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private function prototypes -----------------------------------------------*/ |
| /* 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) |
| { |
| #if (USE_HAL_DAC_REGISTER_CALLBACKS == 1) |
| /* Init the DAC Callback settings */ |
| hdac->ConvCpltCallbackCh1 = HAL_DAC_ConvCpltCallbackCh1; |
| hdac->ConvHalfCpltCallbackCh1 = HAL_DAC_ConvHalfCpltCallbackCh1; |
| hdac->ErrorCallbackCh1 = HAL_DAC_ErrorCallbackCh1; |
| hdac->DMAUnderrunCallbackCh1 = HAL_DAC_DMAUnderrunCallbackCh1; |
| |
| hdac->ConvCpltCallbackCh2 = HAL_DACEx_ConvCpltCallbackCh2; |
| hdac->ConvHalfCpltCallbackCh2 = HAL_DACEx_ConvHalfCpltCallbackCh2; |
| hdac->ErrorCallbackCh2 = HAL_DACEx_ErrorCallbackCh2; |
| hdac->DMAUnderrunCallbackCh2 = HAL_DACEx_DMAUnderrunCallbackCh2; |
| |
| if (hdac->MspInitCallback == NULL) |
| { |
| hdac->MspInitCallback = HAL_DAC_MspInit; |
| } |
| #endif /* USE_HAL_DAC_REGISTER_CALLBACKS */ |
| |
| /* Allocate lock resource and initialize it */ |
| hdac->Lock = HAL_UNLOCKED; |
| |
| #if (USE_HAL_DAC_REGISTER_CALLBACKS == 1) |
| /* Init the low level hardware */ |
| hdac->MspInitCallback(hdac); |
| #else |
| /* Init the low level hardware */ |
| HAL_DAC_MspInit(hdac); |
| #endif /* USE_HAL_DAC_REGISTER_CALLBACKS */ |
| } |
| |
| /* 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; |
| |
| #if (USE_HAL_DAC_REGISTER_CALLBACKS == 1) |
| if (hdac->MspDeInitCallback == NULL) |
| { |
| hdac->MspDeInitCallback = HAL_DAC_MspDeInit; |
| } |
| /* DeInit the low level hardware */ |
| hdac->MspDeInitCallback(hdac); |
| #else |
| /* DeInit the low level hardware */ |
| HAL_DAC_MspDeInit(hdac); |
| #endif /* USE_HAL_DAC_REGISTER_CALLBACKS */ |
| |
| /* 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. |
| (+) Get result of conversion. |
| |
| @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 |
| */ |
| 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); |
| |
| if (Channel == DAC_CHANNEL_1) |
| { |
| /* Check if software trigger enabled */ |
| if ((hdac->Instance->CR & (DAC_CR_TEN1 | DAC_CR_TSEL1)) == DAC_TRIGGER_SOFTWARE) |
| { |
| /* 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_TRIGGER_SOFTWARE << (Channel & 0x10UL))) |
| { |
| /* 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 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 source 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 |
| */ |
| HAL_StatusTypeDef HAL_DAC_Start_DMA(DAC_HandleTypeDef *hdac, uint32_t Channel, uint32_t *pData, uint32_t Length, |
| uint32_t Alignment) |
| { |
| HAL_StatusTypeDef status; |
| uint32_t tmpreg = 0U; |
| |
| /* Check the parameters */ |
| assert_param(IS_DAC_CHANNEL(Channel)); |
| assert_param(IS_DAC_ALIGN(Alignment)); |
| |
| /* Process locked */ |
| __HAL_LOCK(hdac); |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_BUSY; |
| |
| if (Channel == DAC_CHANNEL_1) |
| { |
| /* Set the DMA transfer complete callback for channel1 */ |
| hdac->DMA_Handle1->XferCpltCallback = DAC_DMAConvCpltCh1; |
| |
| /* Set the DMA half transfer complete callback for channel1 */ |
| hdac->DMA_Handle1->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh1; |
| |
| /* Set the DMA error callback for channel1 */ |
| hdac->DMA_Handle1->XferErrorCallback = DAC_DMAErrorCh1; |
| |
| /* Enable the selected DAC channel1 DMA request */ |
| SET_BIT(hdac->Instance->CR, DAC_CR_DMAEN1); |
| |
| /* Case of use of channel 1 */ |
| switch (Alignment) |
| { |
| case DAC_ALIGN_12B_R: |
| /* Get DHR12R1 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR12R1; |
| break; |
| case DAC_ALIGN_12B_L: |
| /* Get DHR12L1 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR12L1; |
| break; |
| case DAC_ALIGN_8B_R: |
| /* Get DHR8R1 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR8R1; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| else |
| { |
| /* Set the DMA transfer complete callback for channel2 */ |
| hdac->DMA_Handle2->XferCpltCallback = DAC_DMAConvCpltCh2; |
| |
| /* Set the DMA half transfer complete callback for channel2 */ |
| hdac->DMA_Handle2->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh2; |
| |
| /* Set the DMA error callback for channel2 */ |
| hdac->DMA_Handle2->XferErrorCallback = DAC_DMAErrorCh2; |
| |
| /* Enable the selected DAC channel2 DMA request */ |
| SET_BIT(hdac->Instance->CR, DAC_CR_DMAEN2); |
| |
| /* Case of use of channel 2 */ |
| switch (Alignment) |
| { |
| case DAC_ALIGN_12B_R: |
| /* Get DHR12R2 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR12R2; |
| break; |
| case DAC_ALIGN_12B_L: |
| /* Get DHR12L2 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR12L2; |
| break; |
| case DAC_ALIGN_8B_R: |
| /* Get DHR8R2 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR8R2; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| |
| /* Enable the DMA Stream */ |
| if (Channel == DAC_CHANNEL_1) |
| { |
| /* Enable the DAC DMA underrun interrupt */ |
| __HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR1); |
| |
| /* Enable the DMA Stream */ |
| status = HAL_DMA_Start_IT(hdac->DMA_Handle1, (uint32_t)pData, tmpreg, Length); |
| } |
| |
| else |
| { |
| /* Enable the DAC DMA underrun interrupt */ |
| __HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR2); |
| |
| /* Enable the DMA Stream */ |
| status = HAL_DMA_Start_IT(hdac->DMA_Handle2, (uint32_t)pData, tmpreg, Length); |
| } |
| |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hdac); |
| |
| if (status == HAL_OK) |
| { |
| /* Enable the Peripheral */ |
| __HAL_DAC_ENABLE(hdac, Channel); |
| } |
| else |
| { |
| hdac->ErrorCode |= HAL_DAC_ERROR_DMA; |
| } |
| |
| /* Return function status */ |
| return status; |
| } |
| |
| /** |
| * @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 & 0x10UL)); |
| |
| /* Disable the Peripheral */ |
| __HAL_DAC_DISABLE(hdac, Channel); |
| |
| /* Disable the DMA Stream */ |
| |
| /* Channel1 is used */ |
| if (Channel == DAC_CHANNEL_1) |
| { |
| /* Disable the DMA Stream */ |
| (void)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 Stream */ |
| (void)HAL_DMA_Abort(hdac->DMA_Handle2); |
| |
| /* Disable the DAC DMA underrun interrupt */ |
| __HAL_DAC_DISABLE_IT(hdac, DAC_IT_DMAUDR2); |
| } |
| |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_READY; |
| |
| /* Return function status */ |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Handles DAC interrupt request |
| * This function uses the interruption of DMA |
| * underrun. |
| * @param hdac pointer to a DAC_HandleTypeDef structure that contains |
| * the configuration information for the specified DAC. |
| * @retval None |
| */ |
| void HAL_DAC_IRQHandler(DAC_HandleTypeDef *hdac) |
| { |
| if (__HAL_DAC_GET_IT_SOURCE(hdac, DAC_IT_DMAUDR1)) |
| { |
| /* Check underrun flag of DAC channel 1 */ |
| if (__HAL_DAC_GET_FLAG(hdac, DAC_FLAG_DMAUDR1)) |
| { |
| /* Change DAC state to error state */ |
| hdac->State = HAL_DAC_STATE_ERROR; |
| |
| /* Set DAC error code to channel1 DMA underrun error */ |
| SET_BIT(hdac->ErrorCode, HAL_DAC_ERROR_DMAUNDERRUNCH1); |
| |
| /* Clear the underrun flag */ |
| __HAL_DAC_CLEAR_FLAG(hdac, DAC_FLAG_DMAUDR1); |
| |
| /* Disable the selected DAC channel1 DMA request */ |
| CLEAR_BIT(hdac->Instance->CR, DAC_CR_DMAEN1); |
| |
| /* Error callback */ |
| #if (USE_HAL_DAC_REGISTER_CALLBACKS == 1) |
| hdac->DMAUnderrunCallbackCh1(hdac); |
| #else |
| HAL_DAC_DMAUnderrunCallbackCh1(hdac); |
| #endif /* USE_HAL_DAC_REGISTER_CALLBACKS */ |
| } |
| } |
| |
| |
| if (__HAL_DAC_GET_IT_SOURCE(hdac, DAC_IT_DMAUDR2)) |
| { |
| /* Check underrun flag of DAC channel 2 */ |
| if (__HAL_DAC_GET_FLAG(hdac, DAC_FLAG_DMAUDR2)) |
| { |
| /* Change DAC state to error state */ |
| hdac->State = HAL_DAC_STATE_ERROR; |
| |
| /* Set DAC error code to channel2 DMA underrun error */ |
| SET_BIT(hdac->ErrorCode, HAL_DAC_ERROR_DMAUNDERRUNCH2); |
| |
| /* Clear the underrun flag */ |
| __HAL_DAC_CLEAR_FLAG(hdac, DAC_FLAG_DMAUDR2); |
| |
| /* Disable the selected DAC channel2 DMA request */ |
| CLEAR_BIT(hdac->Instance->CR, DAC_CR_DMAEN2); |
| |
| /* Error callback */ |
| #if (USE_HAL_DAC_REGISTER_CALLBACKS == 1) |
| hdac->DMAUnderrunCallbackCh2(hdac); |
| #else |
| HAL_DACEx_DMAUnderrunCallbackCh2(hdac); |
| #endif /* USE_HAL_DAC_REGISTER_CALLBACKS */ |
| } |
| } |
| |
| } |
| |
| /** |
| * @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 = 0UL; |
| |
| /* 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 channel 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. |
| (+) Set the specified data holding register value for DAC channel. |
| |
| @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. |
| */ |
| uint32_t HAL_DAC_GetValue(DAC_HandleTypeDef *hdac, uint32_t Channel) |
| { |
| uint32_t result; |
| |
| /* Check the parameters */ |
| assert_param(IS_DAC_CHANNEL(Channel)); |
| |
| if (Channel == DAC_CHANNEL_1) |
| { |
| result = hdac->Instance->DOR1; |
| } |
| |
| else |
| { |
| result = hdac->Instance->DOR2; |
| } |
| |
| /* Returns the DAC channel data output register value */ |
| return result; |
| } |
| |
| /** |
| * @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 |
| */ |
| HAL_StatusTypeDef HAL_DAC_ConfigChannel(DAC_HandleTypeDef *hdac, DAC_ChannelConfTypeDef *sConfig, uint32_t Channel) |
| { |
| uint32_t tmpreg1; |
| uint32_t tmpreg2; |
| uint32_t tickstart; |
| uint32_t connectOnChip; |
| |
| /* 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_CHIP_CONNECTION(sConfig->DAC_ConnectOnChipPeripheral)); |
| assert_param(IS_DAC_TRIMMING(sConfig->DAC_UserTrimming)); |
| if ((sConfig->DAC_UserTrimming) == DAC_TRIMMING_USER) |
| { |
| assert_param(IS_DAC_TRIMMINGVALUE(sConfig->DAC_TrimmingValue)); |
| } |
| assert_param(IS_DAC_SAMPLEANDHOLD(sConfig->DAC_SampleAndHold)); |
| if ((sConfig->DAC_SampleAndHold) == DAC_SAMPLEANDHOLD_ENABLE) |
| { |
| assert_param(IS_DAC_SAMPLETIME(sConfig->DAC_SampleAndHoldConfig.DAC_SampleTime)); |
| assert_param(IS_DAC_HOLDTIME(sConfig->DAC_SampleAndHoldConfig.DAC_HoldTime)); |
| assert_param(IS_DAC_REFRESHTIME(sConfig->DAC_SampleAndHoldConfig.DAC_RefreshTime)); |
| } |
| assert_param(IS_DAC_CHANNEL(Channel)); |
| |
| /* Process locked */ |
| __HAL_LOCK(hdac); |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_BUSY; |
| |
| /* Sample and hold configuration */ |
| if (sConfig->DAC_SampleAndHold == DAC_SAMPLEANDHOLD_ENABLE) |
| { |
| /* Get timeout */ |
| tickstart = HAL_GetTick(); |
| |
| if (Channel == DAC_CHANNEL_1) |
| { |
| /* SHSR1 can be written when BWST1 is cleared */ |
| while (((hdac->Instance->SR) & DAC_SR_BWST1) != 0UL) |
| { |
| /* Check for the Timeout */ |
| if ((HAL_GetTick() - tickstart) > TIMEOUT_DAC_CALIBCONFIG) |
| { |
| /* New check to avoid false timeout detection in case of preemption */ |
| if(((hdac->Instance->SR) & DAC_SR_BWST1) != 0UL) |
| { |
| /* Update error code */ |
| SET_BIT(hdac->ErrorCode, HAL_DAC_ERROR_TIMEOUT); |
| |
| /* Change the DMA state */ |
| hdac->State = HAL_DAC_STATE_TIMEOUT; |
| |
| return HAL_TIMEOUT; |
| } |
| } |
| } |
| HAL_Delay(1); |
| hdac->Instance->SHSR1 = sConfig->DAC_SampleAndHoldConfig.DAC_SampleTime; |
| } |
| |
| else /* Channel 2 */ |
| { |
| /* SHSR2 can be written when BWST2 is cleared */ |
| while (((hdac->Instance->SR) & DAC_SR_BWST2) != 0UL) |
| { |
| /* Check for the Timeout */ |
| if ((HAL_GetTick() - tickstart) > TIMEOUT_DAC_CALIBCONFIG) |
| { |
| /* New check to avoid false timeout detection in case of preemption */ |
| if(((hdac->Instance->SR) & DAC_SR_BWST2) != 0UL) |
| { |
| /* Update error code */ |
| SET_BIT(hdac->ErrorCode, HAL_DAC_ERROR_TIMEOUT); |
| |
| /* Change the DMA state */ |
| hdac->State = HAL_DAC_STATE_TIMEOUT; |
| |
| return HAL_TIMEOUT; |
| } |
| } |
| } |
| HAL_Delay(1U); |
| hdac->Instance->SHSR2 = sConfig->DAC_SampleAndHoldConfig.DAC_SampleTime; |
| } |
| |
| |
| /* HoldTime */ |
| MODIFY_REG(hdac->Instance->SHHR, DAC_SHHR_THOLD1 << (Channel & 0x10UL), |
| (sConfig->DAC_SampleAndHoldConfig.DAC_HoldTime) << (Channel & 0x10UL)); |
| /* RefreshTime */ |
| MODIFY_REG(hdac->Instance->SHRR, DAC_SHRR_TREFRESH1 << (Channel & 0x10UL), |
| (sConfig->DAC_SampleAndHoldConfig.DAC_RefreshTime) << (Channel & 0x10UL)); |
| } |
| |
| if (sConfig->DAC_UserTrimming == DAC_TRIMMING_USER) |
| /* USER TRIMMING */ |
| { |
| /* Get the DAC CCR value */ |
| tmpreg1 = hdac->Instance->CCR; |
| /* Clear trimming value */ |
| tmpreg1 &= ~(((uint32_t)(DAC_CCR_OTRIM1)) << (Channel & 0x10UL)); |
| /* Configure for the selected trimming offset */ |
| tmpreg2 = sConfig->DAC_TrimmingValue; |
| /* Calculate CCR register value depending on DAC_Channel */ |
| tmpreg1 |= tmpreg2 << (Channel & 0x10UL); |
| /* Write to DAC CCR */ |
| hdac->Instance->CCR = tmpreg1; |
| } |
| /* else factory trimming is used (factory setting are available at reset)*/ |
| /* SW Nothing has nothing to do */ |
| |
| /* Get the DAC MCR value */ |
| tmpreg1 = hdac->Instance->MCR; |
| /* Clear DAC_MCR_MODEx bits */ |
| tmpreg1 &= ~(((uint32_t)(DAC_MCR_MODE1)) << (Channel & 0x10UL)); |
| /* Configure for the selected DAC channel: mode, buffer output & on chip peripheral connect */ |
| if (sConfig->DAC_ConnectOnChipPeripheral == DAC_CHIPCONNECT_EXTERNAL) |
| { |
| connectOnChip = 0x00000000UL; |
| } |
| else if (sConfig->DAC_ConnectOnChipPeripheral == DAC_CHIPCONNECT_INTERNAL) |
| { |
| connectOnChip = DAC_MCR_MODE1_0; |
| } |
| else /* (sConfig->DAC_ConnectOnChipPeripheral == DAC_CHIPCONNECT_BOTH) */ |
| { |
| if (sConfig->DAC_OutputBuffer == DAC_OUTPUTBUFFER_ENABLE) |
| { |
| connectOnChip = DAC_MCR_MODE1_0; |
| } |
| else |
| { |
| connectOnChip = 0x00000000UL; |
| } |
| } |
| tmpreg2 = (sConfig->DAC_SampleAndHold | sConfig->DAC_OutputBuffer | connectOnChip); |
| /* Calculate MCR register value depending on DAC_Channel */ |
| tmpreg1 |= tmpreg2 << (Channel & 0x10UL); |
| /* Write to DAC MCR */ |
| hdac->Instance->MCR = tmpreg1; |
| |
| /* DAC in normal operating mode hence clear DAC_CR_CENx bit */ |
| CLEAR_BIT(hdac->Instance->CR, DAC_CR_CEN1 << (Channel & 0x10UL)); |
| |
| /* Get the DAC CR value */ |
| tmpreg1 = hdac->Instance->CR; |
| /* Clear TENx, TSELx, WAVEx and MAMPx bits */ |
| tmpreg1 &= ~(((uint32_t)(DAC_CR_MAMP1 | DAC_CR_WAVE1 | DAC_CR_TSEL1 | DAC_CR_TEN1)) << (Channel & 0x10UL)); |
| /* Configure for the selected DAC channel: trigger */ |
| /* Set TSELx and TENx bits according to DAC_Trigger value */ |
| tmpreg2 = sConfig->DAC_Trigger; |
| /* Calculate CR register value depending on DAC_Channel */ |
| tmpreg1 |= tmpreg2 << (Channel & 0x10UL); |
| /* Write to DAC CR */ |
| hdac->Instance->CR = tmpreg1; |
| /* Disable wave generation */ |
| CLEAR_BIT(hdac->Instance->CR, (DAC_CR_WAVE1 << (Channel & 0x10UL))); |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_READY; |
| |
| /* Process unlocked */ |
| __HAL_UNLOCK(hdac); |
| |
| /* 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 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; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup DAC_Exported_Functions |
| * @{ |
| */ |
| |
| /** @addtogroup DAC_Exported_Functions_Group1 |
| * @{ |
| */ |
| #if (USE_HAL_DAC_REGISTER_CALLBACKS == 1) |
| /** |
| * @brief Register a User DAC Callback |
| * To be used instead of the weak (surcharged) predefined callback |
| * @param hdac DAC handle |
| * @param CallbackID ID of the callback to be registered |
| * This parameter can be one of the following values: |
| * @arg @ref HAL_DAC_ERROR_INVALID_CALLBACK DAC Error Callback ID |
| * @arg @ref HAL_DAC_CH1_COMPLETE_CB_ID DAC CH1 Complete Callback ID |
| * @arg @ref HAL_DAC_CH1_HALF_COMPLETE_CB_ID DAC CH1 Half Complete Callback ID |
| * @arg @ref HAL_DAC_CH1_ERROR_ID DAC CH1 Error Callback ID |
| * @arg @ref HAL_DAC_CH1_UNDERRUN_CB_ID DAC CH1 UnderRun Callback ID |
| * @arg @ref HAL_DAC_CH2_COMPLETE_CB_ID DAC CH2 Complete Callback ID |
| * @arg @ref HAL_DAC_CH2_HALF_COMPLETE_CB_ID DAC CH2 Half Complete Callback ID |
| * @arg @ref HAL_DAC_CH2_ERROR_ID DAC CH2 Error Callback ID |
| * @arg @ref HAL_DAC_CH2_UNDERRUN_CB_ID DAC CH2 UnderRun Callback ID |
| * @arg @ref HAL_DAC_MSPINIT_CB_ID DAC MSP Init Callback ID |
| * @arg @ref HAL_DAC_MSPDEINIT_CB_ID DAC MSP DeInit Callback ID |
| * |
| * @param pCallback pointer to the Callback function |
| * @retval status |
| */ |
| HAL_StatusTypeDef HAL_DAC_RegisterCallback(DAC_HandleTypeDef *hdac, HAL_DAC_CallbackIDTypeDef CallbackID, |
| pDAC_CallbackTypeDef pCallback) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| if (pCallback == NULL) |
| { |
| /* Update the error code */ |
| hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK; |
| return HAL_ERROR; |
| } |
| |
| /* Process locked */ |
| __HAL_LOCK(hdac); |
| |
| if (hdac->State == HAL_DAC_STATE_READY) |
| { |
| switch (CallbackID) |
| { |
| case HAL_DAC_CH1_COMPLETE_CB_ID : |
| hdac->ConvCpltCallbackCh1 = pCallback; |
| break; |
| case HAL_DAC_CH1_HALF_COMPLETE_CB_ID : |
| hdac->ConvHalfCpltCallbackCh1 = pCallback; |
| break; |
| case HAL_DAC_CH1_ERROR_ID : |
| hdac->ErrorCallbackCh1 = pCallback; |
| break; |
| case HAL_DAC_CH1_UNDERRUN_CB_ID : |
| hdac->DMAUnderrunCallbackCh1 = pCallback; |
| break; |
| |
| case HAL_DAC_CH2_COMPLETE_CB_ID : |
| hdac->ConvCpltCallbackCh2 = pCallback; |
| break; |
| case HAL_DAC_CH2_HALF_COMPLETE_CB_ID : |
| hdac->ConvHalfCpltCallbackCh2 = pCallback; |
| break; |
| case HAL_DAC_CH2_ERROR_ID : |
| hdac->ErrorCallbackCh2 = pCallback; |
| break; |
| case HAL_DAC_CH2_UNDERRUN_CB_ID : |
| hdac->DMAUnderrunCallbackCh2 = pCallback; |
| break; |
| |
| case HAL_DAC_MSPINIT_CB_ID : |
| hdac->MspInitCallback = pCallback; |
| break; |
| case HAL_DAC_MSPDEINIT_CB_ID : |
| hdac->MspDeInitCallback = pCallback; |
| break; |
| default : |
| /* Update the error code */ |
| hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK; |
| /* update return status */ |
| status = HAL_ERROR; |
| break; |
| } |
| } |
| else if (hdac->State == HAL_DAC_STATE_RESET) |
| { |
| switch (CallbackID) |
| { |
| case HAL_DAC_MSPINIT_CB_ID : |
| hdac->MspInitCallback = pCallback; |
| break; |
| case HAL_DAC_MSPDEINIT_CB_ID : |
| hdac->MspDeInitCallback = pCallback; |
| break; |
| default : |
| /* Update the error code */ |
| hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK; |
| /* update return status */ |
| status = HAL_ERROR; |
| break; |
| } |
| } |
| else |
| { |
| /* Update the error code */ |
| hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK; |
| /* update return status */ |
| status = HAL_ERROR; |
| } |
| |
| /* Release Lock */ |
| __HAL_UNLOCK(hdac); |
| return status; |
| } |
| |
| /** |
| * @brief Unregister a User DAC Callback |
| * DAC Callback is redirected to the weak (surcharged) predefined callback |
| * @param hdac DAC handle |
| * @param CallbackID ID of the callback to be unregistered |
| * This parameter can be one of the following values: |
| * @arg @ref HAL_DAC_CH1_COMPLETE_CB_ID DAC CH1 transfer Complete Callback ID |
| * @arg @ref HAL_DAC_CH1_HALF_COMPLETE_CB_ID DAC CH1 Half Complete Callback ID |
| * @arg @ref HAL_DAC_CH1_ERROR_ID DAC CH1 Error Callback ID |
| * @arg @ref HAL_DAC_CH1_UNDERRUN_CB_ID DAC CH1 UnderRun Callback ID |
| * @arg @ref HAL_DAC_CH2_COMPLETE_CB_ID DAC CH2 Complete Callback ID |
| * @arg @ref HAL_DAC_CH2_HALF_COMPLETE_CB_ID DAC CH2 Half Complete Callback ID |
| * @arg @ref HAL_DAC_CH2_ERROR_ID DAC CH2 Error Callback ID |
| * @arg @ref HAL_DAC_CH2_UNDERRUN_CB_ID DAC CH2 UnderRun Callback ID |
| * @arg @ref HAL_DAC_MSPINIT_CB_ID DAC MSP Init Callback ID |
| * @arg @ref HAL_DAC_MSPDEINIT_CB_ID DAC MSP DeInit Callback ID |
| * @arg @ref HAL_DAC_ALL_CB_ID DAC All callbacks |
| * @retval status |
| */ |
| HAL_StatusTypeDef HAL_DAC_UnRegisterCallback(DAC_HandleTypeDef *hdac, HAL_DAC_CallbackIDTypeDef CallbackID) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| /* Process locked */ |
| __HAL_LOCK(hdac); |
| |
| if (hdac->State == HAL_DAC_STATE_READY) |
| { |
| switch (CallbackID) |
| { |
| case HAL_DAC_CH1_COMPLETE_CB_ID : |
| hdac->ConvCpltCallbackCh1 = HAL_DAC_ConvCpltCallbackCh1; |
| break; |
| case HAL_DAC_CH1_HALF_COMPLETE_CB_ID : |
| hdac->ConvHalfCpltCallbackCh1 = HAL_DAC_ConvHalfCpltCallbackCh1; |
| break; |
| case HAL_DAC_CH1_ERROR_ID : |
| hdac->ErrorCallbackCh1 = HAL_DAC_ErrorCallbackCh1; |
| break; |
| case HAL_DAC_CH1_UNDERRUN_CB_ID : |
| hdac->DMAUnderrunCallbackCh1 = HAL_DAC_DMAUnderrunCallbackCh1; |
| break; |
| |
| case HAL_DAC_CH2_COMPLETE_CB_ID : |
| hdac->ConvCpltCallbackCh2 = HAL_DACEx_ConvCpltCallbackCh2; |
| break; |
| case HAL_DAC_CH2_HALF_COMPLETE_CB_ID : |
| hdac->ConvHalfCpltCallbackCh2 = HAL_DACEx_ConvHalfCpltCallbackCh2; |
| break; |
| case HAL_DAC_CH2_ERROR_ID : |
| hdac->ErrorCallbackCh2 = HAL_DACEx_ErrorCallbackCh2; |
| break; |
| case HAL_DAC_CH2_UNDERRUN_CB_ID : |
| hdac->DMAUnderrunCallbackCh2 = HAL_DACEx_DMAUnderrunCallbackCh2; |
| break; |
| |
| case HAL_DAC_MSPINIT_CB_ID : |
| hdac->MspInitCallback = HAL_DAC_MspInit; |
| break; |
| case HAL_DAC_MSPDEINIT_CB_ID : |
| hdac->MspDeInitCallback = HAL_DAC_MspDeInit; |
| break; |
| case HAL_DAC_ALL_CB_ID : |
| hdac->ConvCpltCallbackCh1 = HAL_DAC_ConvCpltCallbackCh1; |
| hdac->ConvHalfCpltCallbackCh1 = HAL_DAC_ConvHalfCpltCallbackCh1; |
| hdac->ErrorCallbackCh1 = HAL_DAC_ErrorCallbackCh1; |
| hdac->DMAUnderrunCallbackCh1 = HAL_DAC_DMAUnderrunCallbackCh1; |
| |
| hdac->ConvCpltCallbackCh2 = HAL_DACEx_ConvCpltCallbackCh2; |
| hdac->ConvHalfCpltCallbackCh2 = HAL_DACEx_ConvHalfCpltCallbackCh2; |
| hdac->ErrorCallbackCh2 = HAL_DACEx_ErrorCallbackCh2; |
| hdac->DMAUnderrunCallbackCh2 = HAL_DACEx_DMAUnderrunCallbackCh2; |
| |
| hdac->MspInitCallback = HAL_DAC_MspInit; |
| hdac->MspDeInitCallback = HAL_DAC_MspDeInit; |
| break; |
| default : |
| /* Update the error code */ |
| hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK; |
| /* update return status */ |
| status = HAL_ERROR; |
| break; |
| } |
| } |
| else if (hdac->State == HAL_DAC_STATE_RESET) |
| { |
| switch (CallbackID) |
| { |
| case HAL_DAC_MSPINIT_CB_ID : |
| hdac->MspInitCallback = HAL_DAC_MspInit; |
| break; |
| case HAL_DAC_MSPDEINIT_CB_ID : |
| hdac->MspDeInitCallback = HAL_DAC_MspDeInit; |
| break; |
| default : |
| /* Update the error code */ |
| hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK; |
| /* update return status */ |
| status = HAL_ERROR; |
| break; |
| } |
| } |
| else |
| { |
| /* Update the error code */ |
| hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK; |
| /* update return status */ |
| status = HAL_ERROR; |
| } |
| |
| /* Release Lock */ |
| __HAL_UNLOCK(hdac); |
| return status; |
| } |
| #endif /* USE_HAL_DAC_REGISTER_CALLBACKS */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup DAC_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_DMAConvCpltCh1(DMA_HandleTypeDef *hdma) |
| { |
| DAC_HandleTypeDef *hdac = (DAC_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; |
| |
| #if (USE_HAL_DAC_REGISTER_CALLBACKS == 1) |
| hdac->ConvCpltCallbackCh1(hdac); |
| #else |
| HAL_DAC_ConvCpltCallbackCh1(hdac); |
| #endif /* USE_HAL_DAC_REGISTER_CALLBACKS */ |
| |
| 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_DMAHalfConvCpltCh1(DMA_HandleTypeDef *hdma) |
| { |
| DAC_HandleTypeDef *hdac = (DAC_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; |
| /* Conversion complete callback */ |
| #if (USE_HAL_DAC_REGISTER_CALLBACKS == 1) |
| hdac->ConvHalfCpltCallbackCh1(hdac); |
| #else |
| HAL_DAC_ConvHalfCpltCallbackCh1(hdac); |
| #endif /* USE_HAL_DAC_REGISTER_CALLBACKS */ |
| } |
| |
| /** |
| * @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_DMAErrorCh1(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; |
| |
| #if (USE_HAL_DAC_REGISTER_CALLBACKS == 1) |
| hdac->ErrorCallbackCh1(hdac); |
| #else |
| HAL_DAC_ErrorCallbackCh1(hdac); |
| #endif /* USE_HAL_DAC_REGISTER_CALLBACKS */ |
| |
| hdac->State = HAL_DAC_STATE_READY; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* DAC1 || DAC2 */ |
| |
| #endif /* HAL_DAC_MODULE_ENABLED */ |
| |
| /** |
| * @} |
| */ |
| |
