| /** |
| ****************************************************************************** |
| * @file stm32l0xx_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 |
| * + Peripheral Control functions |
| * + Peripheral State and Errors functions |
| * |
| * |
| ****************************************************************************** |
| * @attention |
| * |
| * Copyright (c) 2016 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 *** |
| ==================== |
| [..] |
| STM32L0 devices integrate one or two 12-bit Digital Analog Converters |
| (i.e. one or 2 channel(s)) |
| 1 channel : STM32L05x STM32L06x devices |
| 2 channels: STM32L07x STM32L08x devices |
| |
| When 2 channels are available, the 2 converters (i.e. channel1 & channel2) |
| 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_PIN_9) using DAC_TRIGGER_EXT_IT9. |
| The used pin (GPIOx_PIN_9) 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, 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() |
| |
| *** 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 (overridden) 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 (overridden) functions. |
| Exception done for MspInit and MspDeInit callbacks that are respectively |
| reset to the legacy weak (overridden) 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 (overridden) 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 |
| ****************************************************************************** |
| */ |
| |
| |
| #if !defined (STM32L010xB) && !defined (STM32L010x8) && !defined (STM32L010x6) && !defined (STM32L010x4) && !defined (STM32L011xx) && !defined (STM32L021xx) && !defined (STM32L031xx) && !defined (STM32L041xx) && !defined (STM32L051xx) && !defined (STM32L071xx) && !defined (STM32L081xx) |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32l0xx_hal.h" |
| |
| #ifdef HAL_DAC_MODULE_ENABLED |
| /** @addtogroup STM32L0xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @addtogroup DAC |
| * @brief DAC driver modules |
| * @{ |
| */ |
| |
| |
| /* Private typedef -----------------------------------------------------------*/ |
| /* Private define ------------------------------------------------------------*/ |
| /* Private macro -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private function prototypes -----------------------------------------------*/ |
| |
| /* Private functions ---------------------------------------------------------*/ |
| |
| /** @addtogroup DAC_Exported_Functions |
| * @{ |
| */ |
| |
| /** @addtogroup DAC_Exported_Functions_Group1 |
| * @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; |
| |
| #if defined (DAC_CHANNEL2_SUPPORT) |
| hdac->ConvCpltCallbackCh2 = HAL_DACEx_ConvCpltCallbackCh2; |
| hdac->ConvHalfCpltCallbackCh2 = HAL_DACEx_ConvHalfCpltCallbackCh2; |
| hdac->ErrorCallbackCh2 = HAL_DACEx_ErrorCallbackCh2; |
| hdac->DMAUnderrunCallbackCh2 = HAL_DACEx_DMAUnderrunCallbackCh2; |
| #endif /* DAC_CHANNEL2_SUPPORT */ |
| |
| 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 |
| */ |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup DAC_Exported_Functions_Group2 |
| * @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) |
| { |
| /* 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 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) |
| { |
| /* 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 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) |
| { |
| /* 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 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) |
| { |
| /* 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 stm32l0xx_hal_dac_ex.c */ |
| |
| /* Return function status */ |
| return 0U; |
| } |
| |
| /** |
| * @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 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) |
| { |
| /* 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 |
| */ |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup DAC_Exported_Functions_Group3 |
| * @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 = 0U, tmpreg2 = 0U; |
| |
| /* 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; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup DAC_Exported_Functions_Group4 |
| * @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; |
| } |
| |
| /** |
| * @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) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hdac); |
| UNUSED(Channel); |
| UNUSED(Alignment); |
| UNUSED(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; |
| } |
| /** |
| * @} |
| */ |
| |
| #if (USE_HAL_DAC_REGISTER_CALLBACKS == 1) |
| /** |
| * @brief Register a User DAC Callback |
| * To be used instead of the weak (overridden) 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_MSP_INIT_CB_ID DAC MSP Init Callback ID |
| * @arg @ref HAL_DAC_MSP_DEINIT_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_MSP_INIT_CB_ID : |
| hdac->MspInitCallback = pCallback; |
| break; |
| case HAL_DAC_MSP_DEINIT_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_MSP_INIT_CB_ID : |
| hdac->MspInitCallback = pCallback; |
| break; |
| case HAL_DAC_MSP_DEINIT_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 (overridden) 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_MSP_INIT_CB_ID DAC MSP Init Callback ID |
| * @arg @ref HAL_DAC_MSP_DEINIT_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; |
| #if defined (DAC_CHANNEL2_SUPPORT) |
| 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; |
| #endif /* DAC_CHANNEL2_SUPPORT */ |
| case HAL_DAC_MSP_INIT_CB_ID : |
| hdac->MspInitCallback = HAL_DAC_MspInit; |
| break; |
| case HAL_DAC_MSP_DEINIT_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; |
| #if defined (DAC_CHANNEL2_SUPPORT) |
| hdac->ConvCpltCallbackCh2 = HAL_DACEx_ConvCpltCallbackCh2; |
| hdac->ConvHalfCpltCallbackCh2 = HAL_DACEx_ConvHalfCpltCallbackCh2; |
| hdac->ErrorCallbackCh2 = HAL_DACEx_ErrorCallbackCh2; |
| hdac->DMAUnderrunCallbackCh2 = HAL_DACEx_DMAUnderrunCallbackCh2; |
| #endif /* DAC_CHANNEL2_SUPPORT */ |
| 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_MSP_INIT_CB_ID : |
| hdac->MspInitCallback = HAL_DAC_MspInit; |
| break; |
| case HAL_DAC_MSP_DEINIT_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 */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| #endif /* HAL_DAC_MODULE_ENABLED */ |
| #endif /* !STM32L010xB && !STM32L010x8 && !STM32L010x6 && !STM32L010x4 && !STM32L011xx && !STM32L021xx && !STM32L031xx && !STM32L041xx && !STM32L051xx !STM32L071xx&& !STM32L081xx */ |
| |
| |
