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Diffstat (limited to 'c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac.c | 953 |
1 files changed, 953 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac.c b/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac.c new file mode 100644 index 0000000000..b417e6338f --- /dev/null +++ b/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac.c @@ -0,0 +1,953 @@ +/** + ****************************************************************************** + * @file stm32f4xx_hal_dac.c + * @author MCD Application Team + * @version V1.4.0 + * @date 14-August-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 *** + ==================== + [..] + The device integrates two 12-bit Digital Analog Converters that can + be used independently or simultaneously (dual mode): + (#) DAC channel1 with DAC_OUT1 (PA4) as output + (#) DAC channel2 with DAC_OUT2 (PA5) as output + + *** DAC Triggers *** + ==================== + [..] + Digital to Analog conversion can be non-triggered using DAC_TRIGGER_NONE + and DAC_OUT1/DAC_OUT2 is available once writing to DHRx register. + [..] + Digital to Analog conversion can be triggered by: + (#) External event: EXTI Line 9 (any GPIOx_Pin9) using DAC_TRIGGER_EXT_IT9. + The used pin (GPIOx_Pin9) must be configured in input mode. + + (#) Timers TRGO: TIM2, TIM4, TIM5, TIM6, TIM7 and TIM8 + (DAC_TRIGGER_T2_TRGO, DAC_TRIGGER_T4_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 + (#) 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 + 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 Stream5 channel7 which must be + already configured + (#) DAC channel2 : mapped on DMA1 Stream6 channel7 which must be + already configured + + -@- For Dual mode 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_OUTx (DAC_OUT1: PA4, DAC_OUT2: PA5) in analog mode. + (+) Configure the DAC channel using HAL_DAC_ConfigChannel() function. + (+) Enable the DAC channel using HAL_DAC_Start() or HAL_DAC_Start_DMA functions + + *** Polling mode IO operation *** + ================================= + [..] + (+) Start the DAC peripheral using HAL_DAC_Start() + (+) To read the DAC last data output value, use the HAL_DAC_GetValue() function. + (+) Stop the DAC peripheral using HAL_DAC_Stop() + + *** DMA mode IO operation *** + ============================== + [..] + (+) Start the DAC peripheral using HAL_DAC_Start_DMA(), at this stage the user specify the length + of data to be transferred at each end of conversion + (+) At The 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 + (+) 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. + * + ****************************************************************************** + */ + + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f4xx_hal.h" + +/** @addtogroup STM32F4xx_HAL_Driver + * @{ + */ + +/** @defgroup DAC DAC + * @brief DAC driver modules + * @{ + */ + +#ifdef HAL_DAC_MODULE_ENABLED + +#if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) ||\ + defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\ + defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F446xx) ||\ + defined(STM32F469xx) || defined(STM32F479xx) +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/** @addtogroup DAC_Private_Functions + * @{ + */ +/* Private function prototypes -----------------------------------------------*/ +static void DAC_DMAConvCpltCh1(DMA_HandleTypeDef *hdma); +static void DAC_DMAErrorCh1(DMA_HandleTypeDef *hdma); +static void DAC_DMAHalfConvCpltCh1(DMA_HandleTypeDef *hdma); +/** + * @} + */ + +/* 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 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) + { + /* Allocate lock resource and initialize it */ + hdac->Lock = HAL_UNLOCKED; + /* Init the low level hardware */ + HAL_DAC_MspInit(hdac); + } + + /* Initialize the DAC state*/ + hdac->State = HAL_DAC_STATE_BUSY; + + /* Set DAC error code to none */ + hdac->ErrorCode = HAL_DAC_ERROR_NONE; + + /* Initialize the DAC state*/ + hdac->State = HAL_DAC_STATE_READY; + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief 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. + +@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) +{ + uint32_t tmp1 = 0, tmp2 = 0; + + /* 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) + { + tmp1 = hdac->Instance->CR & DAC_CR_TEN1; + tmp2 = hdac->Instance->CR & DAC_CR_TSEL1; + /* Check if software trigger enabled */ + if((tmp1 == DAC_CR_TEN1) && (tmp2 == DAC_CR_TSEL1)) + { + /* Enable the selected DAC software conversion */ + hdac->Instance->SWTRIGR |= (uint32_t)DAC_SWTRIGR_SWTRIG1; + } + } + else + { + tmp1 = hdac->Instance->CR & DAC_CR_TEN2; + tmp2 = hdac->Instance->CR & DAC_CR_TSEL2; + /* Check if software trigger enabled */ + if((tmp1 == DAC_CR_TEN2) && (tmp2 == DAC_CR_TSEL2)) + { + /* Enable the selected DAC software conversion*/ + hdac->Instance->SWTRIGR |= (uint32_t)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 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 + */ +HAL_StatusTypeDef HAL_DAC_Start_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t* pData, uint32_t Length, uint32_t Alignment) +{ + uint32_t tmpreg = 0; + + /* 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 */ + 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 */ + 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 */ + 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 */ + HAL_DMA_Start_IT(hdac->DMA_Handle2, (uint32_t)pData, tmpreg, Length); + } + + /* Enable the Peripheral */ + __HAL_DAC_ENABLE(hdac, Channel); + + /* 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_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Check the parameters */ + assert_param(IS_DAC_CHANNEL(Channel)); + + /* Disable the selected DAC channel DMA request */ + hdac->Instance->CR &= ~(DAC_CR_DMAEN1 << Channel); + + /* Disable the Peripheral */ + __HAL_DAC_DISABLE(hdac, Channel); + + /* Disable the DMA Channel */ + /* Channel1 is used */ + if(Channel == DAC_CHANNEL_1) + { + status = HAL_DMA_Abort(hdac->DMA_Handle1); + } + else /* Channel2 is used for */ + { + status = HAL_DMA_Abort(hdac->DMA_Handle2); + } + + /* Check if DMA Channel effectively disabled */ + if(status != HAL_OK) + { + /* Update DAC state machine to error */ + hdac->State = HAL_DAC_STATE_ERROR; + } + else + { + /* Change DAC state */ + hdac->State = HAL_DAC_STATE_READY; + } + + /* Return function status */ + return status; +} + +/** + * @brief 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) +{ + /* Check the parameters */ + assert_param(IS_DAC_CHANNEL(Channel)); + + /* Returns the DAC channel data output register value */ + if(Channel == DAC_CHANNEL_1) + { + return hdac->Instance->DOR1; + } + else + { + return hdac->Instance->DOR2; + } +} + +/** + * @brief Handles DAC interrupt request + * @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) +{ + /* Check underrun channel 1 flag */ + 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 */ + 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 */ + hdac->Instance->CR &= ~DAC_CR_DMAEN1; + + /* Error callback */ + HAL_DAC_DMAUnderrunCallbackCh1(hdac); + } + /* Check underrun channel 2 flag */ + 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 */ + hdac->ErrorCode |= HAL_DAC_ERROR_DMAUNDERRUNCH2; + + /* Clear the underrun flag */ + __HAL_DAC_CLEAR_FLAG(hdac,DAC_FLAG_DMAUDR2); + + /* Disable the selected DAC channel1 DMA request */ + hdac->Instance->CR &= ~DAC_CR_DMAEN2; + + /* Error callback */ + HAL_DACEx_DMAUnderrunCallbackCh2(hdac); + } +} + +/** + * @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_ConvCpltCallback 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 + * @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 */ + 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 + * @param Alignment: Specifies the data alignment. + * This parameter can be one of the following values: + * @arg DAC_ALIGN_8B_R: 8bit right data alignment selected + * @arg DAC_ALIGN_12B_L: 12bit left data alignment selected + * @arg DAC_ALIGN_12B_R: 12bit right data alignment selected + * @param Data: Data to be loaded in the selected data holding register. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_DAC_SetValue(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Alignment, uint32_t Data) +{ + __IO uint32_t tmp = 0; + + /* Check the parameters */ + assert_param(IS_DAC_CHANNEL(Channel)); + assert_param(IS_DAC_ALIGN(Alignment)); + assert_param(IS_DAC_DATA(Data)); + + tmp = (uint32_t)hdac->Instance; + if(Channel == DAC_CHANNEL_1) + { + tmp += DAC_DHR12R1_ALIGNMENT(Alignment); + } + else + { + tmp += DAC_DHR12R2_ALIGNMENT(Alignment); + } + + /* Set the DAC channel1 selected data holding register */ + *(__IO uint32_t *) tmp = Data; + + /* Return function status */ + return HAL_OK; +} + +/** + * @} + */ + +/** @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; +} + +/** + * @} + */ + +/** + * @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 + */ +static void DAC_DMAConvCpltCh1(DMA_HandleTypeDef *hdma) +{ + DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + + HAL_DAC_ConvCpltCallbackCh1(hdac); + + hdac->State= HAL_DAC_STATE_READY; +} + +/** + * @brief DMA half transfer complete callback. + * @param hdma: pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void DAC_DMAHalfConvCpltCh1(DMA_HandleTypeDef *hdma) +{ + DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + /* Conversion complete callback */ + HAL_DAC_ConvHalfCpltCallbackCh1(hdac); +} + +/** + * @brief DMA error callback + * @param hdma: pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static 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; + + HAL_DAC_ErrorCallbackCh1(hdac); + + hdac->State= HAL_DAC_STATE_READY; +} + +/** + * @} + */ +#endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx ||\ + STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx ||\ + STM32F410xx || STM32F446xx || STM32F469xx || STM32F479xx */ +#endif /* HAL_DAC_MODULE_ENABLED */ + +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |