+++ /dev/null
-/**\r
- ******************************************************************************\r
- * @file stm32f7xx_hal_dac.c\r
- * @author MCD Application Team\r
- * @version V0.3.0\r
- * @date 06-March-2015\r
- * @brief DAC HAL module driver.\r
- * This file provides firmware functions to manage the following \r
- * functionalities of the Digital to Analog Converter (DAC) peripheral:\r
- * + Initialization and de-initialization functions\r
- * + IO operation functions\r
- * + Peripheral Control functions\r
- * + Peripheral State and Errors functions \r
- * \r
- *\r
- @verbatim \r
- ==============================================================================\r
- ##### DAC Peripheral features #####\r
- ==============================================================================\r
- [..] \r
- *** DAC Channels ***\r
- ==================== \r
- [..] \r
- The device integrates two 12-bit Digital Analog Converters that can \r
- be used independently or simultaneously (dual mode):\r
- (#) DAC channel1 with DAC_OUT1 (PA4) as output\r
- (#) DAC channel2 with DAC_OUT2 (PA5) as output\r
- \r
- *** DAC Triggers ***\r
- ====================\r
- [..]\r
- Digital to Analog conversion can be non-triggered using DAC_TRIGGER_NONE\r
- and DAC_OUT1/DAC_OUT2 is available once writing to DHRx register. \r
- [..] \r
- Digital to Analog conversion can be triggered by:\r
- (#) External event: EXTI Line 9 (any GPIOx_Pin9) using DAC_TRIGGER_EXT_IT9.\r
- The used pin (GPIOx_Pin9) must be configured in input mode.\r
- \r
- (#) Timers TRGO: TIM2, TIM4, TIM5, TIM6, TIM7 and TIM8 \r
- (DAC_TRIGGER_T2_TRGO, DAC_TRIGGER_T4_TRGO...)\r
- \r
- (#) Software using DAC_TRIGGER_SOFTWARE\r
- \r
- *** DAC Buffer mode feature ***\r
- =============================== \r
- [..] \r
- Each DAC channel integrates an output buffer that can be used to \r
- reduce the output impedance, and to drive external loads directly\r
- without having to add an external operational amplifier.\r
- To enable, the output buffer use \r
- sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;\r
- [..] \r
- (@) Refer to the device datasheet for more details about output \r
- impedance value with and without output buffer.\r
- \r
- *** DAC wave generation feature ***\r
- =================================== \r
- [..] \r
- Both DAC channels can be used to generate\r
- (#) Noise wave using HAL_DACEx_NoiseWaveGenerate() \r
- (#) Triangle wave using HAL_DACEx_TriangleWaveGenerate()\r
- \r
- *** DAC data format ***\r
- =======================\r
- [..] \r
- The DAC data format can be:\r
- (#) 8-bit right alignment using DAC_ALIGN_8B_R\r
- (#) 12-bit left alignment using DAC_ALIGN_12B_L\r
- (#) 12-bit right alignment using DAC_ALIGN_12B_R\r
- \r
- *** DAC data value to voltage correspondence *** \r
- ================================================ \r
- [..] \r
- The analog output voltage on each DAC channel pin is determined\r
- by the following equation: \r
- DAC_OUTx = VREF+ * DOR / 4095\r
- with DOR is the Data Output Register\r
- VEF+ is the input voltage reference (refer to the device datasheet)\r
- e.g. To set DAC_OUT1 to 0.7V, use\r
- Assuming that VREF+ = 3.3V, DAC_OUT1 = (3.3 * 868) / 4095 = 0.7V\r
- \r
- *** DMA requests ***\r
- =====================\r
- [..] \r
- A DMA1 request can be generated when an external trigger (but not\r
- a software trigger) occurs if DMA1 requests are enabled using\r
- HAL_DAC_Start_DMA()\r
- [..]\r
- DMA1 requests are mapped as following:\r
- (#) DAC channel1 : mapped on DMA1 Stream5 channel7 which must be \r
- already configured\r
- (#) DAC channel2 : mapped on DMA1 Stream6 channel7 which must be \r
- already configured\r
- \r
- -@- For Dual mode and specific signal (Triangle and noise) generation please \r
- refer to Extension Features Driver description \r
- \r
- \r
- ##### How to use this driver #####\r
- ==============================================================================\r
- [..] \r
- (+) DAC APB clock must be enabled to get write access to DAC\r
- registers using HAL_DAC_Init()\r
- (+) Configure DAC_OUTx (DAC_OUT1: PA4, DAC_OUT2: PA5) in analog mode.\r
- (+) Configure the DAC channel using HAL_DAC_ConfigChannel() function.\r
- (+) Enable the DAC channel using HAL_DAC_Start() or HAL_DAC_Start_DMA functions\r
-\r
- *** Polling mode IO operation ***\r
- =================================\r
- [..] \r
- (+) Start the DAC peripheral using HAL_DAC_Start() \r
- (+) To read the DAC last data output value, use the HAL_DAC_GetValue() function.\r
- (+) Stop the DAC peripheral using HAL_DAC_Stop()\r
-\r
- \r
- *** DMA mode IO operation *** \r
- ==============================\r
- [..] \r
- (+) Start the DAC peripheral using HAL_DAC_Start_DMA(), at this stage the user specify the length \r
- of data to be transferred at each end of conversion \r
- (+) At The end of data transfer HAL_DAC_ConvCpltCallbackCh1()or HAL_DAC_ConvCpltCallbackCh2() \r
- function is executed and user can add his own code by customization of function pointer \r
- HAL_DAC_ConvCpltCallbackCh1 or HAL_DAC_ConvCpltCallbackCh2\r
- (+) In case of transfer Error, HAL_DAC_ErrorCallbackCh1() function is executed and user can \r
- add his own code by customization of function pointer HAL_DAC_ErrorCallbackCh1\r
- (+) Stop the DAC peripheral using HAL_DAC_Stop_DMA()\r
-\r
- \r
- *** DAC HAL driver macros list ***\r
- ============================================= \r
- [..]\r
- Below the list of most used macros in DAC HAL driver.\r
- \r
- (+) __HAL_DAC_ENABLE : Enable the DAC peripheral\r
- (+) __HAL_DAC_DISABLE : Disable the DAC peripheral\r
- (+) __HAL_DAC_CLEAR_FLAG: Clear the DAC's pending flags\r
- (+) __HAL_DAC_GET_FLAG: Get the selected DAC's flag status\r
- \r
- [..]\r
- (@) You can refer to the DAC HAL driver header file for more useful macros \r
- \r
- @endverbatim \r
- ******************************************************************************\r
- * @attention\r
- *\r
- * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>\r
- *\r
- * Redistribution and use in source and binary forms, with or without modification,\r
- * are permitted provided that the following conditions are met:\r
- * 1. Redistributions of source code must retain the above copyright notice,\r
- * this list of conditions and the following disclaimer.\r
- * 2. Redistributions in binary form must reproduce the above copyright notice,\r
- * this list of conditions and the following disclaimer in the documentation\r
- * and/or other materials provided with the distribution.\r
- * 3. Neither the name of STMicroelectronics nor the names of its contributors\r
- * may be used to endorse or promote products derived from this software\r
- * without specific prior written permission.\r
- *\r
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"\r
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE\r
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR\r
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER\r
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,\r
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\r
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
- *\r
- ******************************************************************************\r
- */ \r
-\r
-\r
-/* Includes ------------------------------------------------------------------*/\r
-#include "stm32f7xx_hal.h"\r
-\r
-/** @addtogroup STM32F7xx_HAL_Driver\r
- * @{\r
- */\r
-\r
-/** @defgroup DAC DAC\r
- * @brief DAC driver modules\r
- * @{\r
- */ \r
-\r
-#ifdef HAL_DAC_MODULE_ENABLED\r
-\r
-#if defined(STM32F756xx) || defined(STM32F746xx)\r
-/* Private typedef -----------------------------------------------------------*/\r
-/* Private define ------------------------------------------------------------*/\r
-/* Private macro -------------------------------------------------------------*/\r
-/* Private variables ---------------------------------------------------------*/\r
-/** @addtogroup DAC_Private_Functions\r
- * @{\r
- */\r
-/* Private function prototypes -----------------------------------------------*/\r
-static void DAC_DMAConvCpltCh1(DMA_HandleTypeDef *hdma);\r
-static void DAC_DMAErrorCh1(DMA_HandleTypeDef *hdma);\r
-static void DAC_DMAHalfConvCpltCh1(DMA_HandleTypeDef *hdma); \r
-/**\r
- * @}\r
- */\r
-\r
-/* Exported functions --------------------------------------------------------*/\r
-/** @defgroup DAC_Exported_Functions DAC Exported Functions\r
- * @{\r
- */\r
-\r
-/** @defgroup DAC_Exported_Functions_Group1 Initialization and de-initialization functions \r
- * @brief Initialization and Configuration functions \r
- *\r
-@verbatim \r
- ==============================================================================\r
- ##### Initialization and de-initialization functions #####\r
- ==============================================================================\r
- [..] This section provides functions allowing to:\r
- (+) Initialize and configure the DAC. \r
- (+) De-initialize the DAC. \r
- \r
-@endverbatim\r
- * @{\r
- */\r
-\r
-/**\r
- * @brief Initializes the DAC peripheral according to the specified parameters\r
- * in the DAC_InitStruct.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_DAC_Init(DAC_HandleTypeDef* hdac)\r
-{ \r
- /* Check DAC handle */\r
- if(hdac == NULL)\r
- {\r
- return HAL_ERROR;\r
- }\r
- /* Check the parameters */\r
- assert_param(IS_DAC_ALL_INSTANCE(hdac->Instance));\r
- \r
- if(hdac->State == HAL_DAC_STATE_RESET)\r
- { \r
- /* Init the low level hardware */\r
- HAL_DAC_MspInit(hdac);\r
- }\r
- \r
- /* Initialize the DAC state*/\r
- hdac->State = HAL_DAC_STATE_BUSY;\r
- \r
- /* Set DAC error code to none */\r
- hdac->ErrorCode = HAL_DAC_ERROR_NONE;\r
- \r
- /* Initialize the DAC state*/\r
- hdac->State = HAL_DAC_STATE_READY;\r
- \r
- /* Return function status */\r
- return HAL_OK;\r
-}\r
-\r
-/**\r
- * @brief Deinitializes the DAC peripheral registers to their default reset values.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_DAC_DeInit(DAC_HandleTypeDef* hdac)\r
-{\r
- /* Check DAC handle */\r
- if(hdac == NULL)\r
- {\r
- return HAL_ERROR;\r
- }\r
-\r
- /* Check the parameters */\r
- assert_param(IS_DAC_ALL_INSTANCE(hdac->Instance));\r
-\r
- /* Change DAC state */\r
- hdac->State = HAL_DAC_STATE_BUSY;\r
-\r
- /* DeInit the low level hardware */\r
- HAL_DAC_MspDeInit(hdac);\r
-\r
- /* Set DAC error code to none */\r
- hdac->ErrorCode = HAL_DAC_ERROR_NONE;\r
-\r
- /* Change DAC state */\r
- hdac->State = HAL_DAC_STATE_RESET;\r
-\r
- /* Release Lock */\r
- __HAL_UNLOCK(hdac);\r
-\r
- /* Return function status */\r
- return HAL_OK;\r
-}\r
-\r
-/**\r
- * @brief Initializes the DAC MSP.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @retval None\r
- */\r
-__weak void HAL_DAC_MspInit(DAC_HandleTypeDef* hdac)\r
-{\r
- /* NOTE : This function Should not be modified, when the callback is needed,\r
- the HAL_DAC_MspInit could be implemented in the user file\r
- */ \r
-}\r
-\r
-/**\r
- * @brief DeInitializes the DAC MSP.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC. \r
- * @retval None\r
- */\r
-__weak void HAL_DAC_MspDeInit(DAC_HandleTypeDef* hdac)\r
-{\r
- /* NOTE : This function Should not be modified, when the callback is needed,\r
- the HAL_DAC_MspDeInit could be implemented in the user file\r
- */ \r
-}\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/** @defgroup DAC_Exported_Functions_Group2 IO operation functions\r
- * @brief IO operation functions \r
- *\r
-@verbatim \r
- ==============================================================================\r
- ##### IO operation functions #####\r
- ============================================================================== \r
- [..] This section provides functions allowing to:\r
- (+) Start conversion.\r
- (+) Stop conversion.\r
- (+) Start conversion and enable DMA transfer.\r
- (+) Stop conversion and disable DMA transfer.\r
- (+) Get result of conversion.\r
- \r
-@endverbatim\r
- * @{\r
- */\r
-\r
-/**\r
- * @brief Enables DAC and starts conversion of channel.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @param Channel: The selected DAC channel. \r
- * This parameter can be one of the following values:\r
- * @arg DAC_CHANNEL_1: DAC Channel1 selected\r
- * @arg DAC_CHANNEL_2: DAC Channel2 selected\r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_DAC_Start(DAC_HandleTypeDef* hdac, uint32_t Channel)\r
-{\r
- uint32_t tmp1 = 0, tmp2 = 0;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_DAC_CHANNEL(Channel));\r
- \r
- /* Process locked */\r
- __HAL_LOCK(hdac);\r
- \r
- /* Change DAC state */\r
- hdac->State = HAL_DAC_STATE_BUSY;\r
- \r
- /* Enable the Peripheral */\r
- __HAL_DAC_ENABLE(hdac, Channel);\r
- \r
- if(Channel == DAC_CHANNEL_1)\r
- {\r
- tmp1 = hdac->Instance->CR & DAC_CR_TEN1;\r
- tmp2 = hdac->Instance->CR & DAC_CR_TSEL1;\r
- /* Check if software trigger enabled */\r
- if((tmp1 == DAC_CR_TEN1) && (tmp2 == DAC_CR_TSEL1))\r
- {\r
- /* Enable the selected DAC software conversion */\r
- hdac->Instance->SWTRIGR |= (uint32_t)DAC_SWTRIGR_SWTRIG1;\r
- }\r
- }\r
- else\r
- {\r
- tmp1 = hdac->Instance->CR & DAC_CR_TEN2;\r
- tmp2 = hdac->Instance->CR & DAC_CR_TSEL2; \r
- /* Check if software trigger enabled */\r
- if((tmp1 == DAC_CR_TEN2) && (tmp2 == DAC_CR_TSEL2))\r
- {\r
- /* Enable the selected DAC software conversion*/\r
- hdac->Instance->SWTRIGR |= (uint32_t)DAC_SWTRIGR_SWTRIG2;\r
- }\r
- }\r
- \r
- /* Change DAC state */\r
- hdac->State = HAL_DAC_STATE_READY;\r
- \r
- /* Process unlocked */\r
- __HAL_UNLOCK(hdac);\r
- \r
- /* Return function status */\r
- return HAL_OK;\r
-}\r
-\r
-/**\r
- * @brief Disables DAC and stop conversion of channel.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @param Channel: The selected DAC channel. \r
- * This parameter can be one of the following values:\r
- * @arg DAC_CHANNEL_1: DAC Channel1 selected\r
- * @arg DAC_CHANNEL_2: DAC Channel2 selected \r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_DAC_Stop(DAC_HandleTypeDef* hdac, uint32_t Channel)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_DAC_CHANNEL(Channel));\r
- \r
- /* Disable the Peripheral */\r
- __HAL_DAC_DISABLE(hdac, Channel);\r
- \r
- /* Change DAC state */\r
- hdac->State = HAL_DAC_STATE_READY;\r
- \r
- /* Return function status */\r
- return HAL_OK;\r
-}\r
-\r
-/**\r
- * @brief Enables DAC and starts conversion of channel.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @param Channel: The selected DAC channel. \r
- * This parameter can be one of the following values:\r
- * @arg DAC_CHANNEL_1: DAC Channel1 selected\r
- * @arg DAC_CHANNEL_2: DAC Channel2 selected\r
- * @param pData: The destination peripheral Buffer address.\r
- * @param Length: The length of data to be transferred from memory to DAC peripheral\r
- * @param Alignment: Specifies the data alignment for DAC channel.\r
- * This parameter can be one of the following values:\r
- * @arg DAC_ALIGN_8B_R: 8bit right data alignment selected\r
- * @arg DAC_ALIGN_12B_L: 12bit left data alignment selected\r
- * @arg DAC_ALIGN_12B_R: 12bit right data alignment selected\r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_DAC_Start_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t* pData, uint32_t Length, uint32_t Alignment)\r
-{\r
- uint32_t tmpreg = 0;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_DAC_CHANNEL(Channel));\r
- assert_param(IS_DAC_ALIGN(Alignment));\r
- \r
- /* Process locked */\r
- __HAL_LOCK(hdac);\r
- \r
- /* Change DAC state */\r
- hdac->State = HAL_DAC_STATE_BUSY;\r
-\r
- if(Channel == DAC_CHANNEL_1)\r
- {\r
- /* Set the DMA transfer complete callback for channel1 */\r
- hdac->DMA_Handle1->XferCpltCallback = DAC_DMAConvCpltCh1;\r
-\r
- /* Set the DMA half transfer complete callback for channel1 */\r
- hdac->DMA_Handle1->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh1;\r
-\r
- /* Set the DMA error callback for channel1 */\r
- hdac->DMA_Handle1->XferErrorCallback = DAC_DMAErrorCh1;\r
-\r
- /* Enable the selected DAC channel1 DMA request */\r
- hdac->Instance->CR |= DAC_CR_DMAEN1;\r
- \r
- /* Case of use of channel 1 */\r
- switch(Alignment)\r
- {\r
- case DAC_ALIGN_12B_R:\r
- /* Get DHR12R1 address */\r
- tmpreg = (uint32_t)&hdac->Instance->DHR12R1;\r
- break;\r
- case DAC_ALIGN_12B_L:\r
- /* Get DHR12L1 address */\r
- tmpreg = (uint32_t)&hdac->Instance->DHR12L1;\r
- break;\r
- case DAC_ALIGN_8B_R:\r
- /* Get DHR8R1 address */\r
- tmpreg = (uint32_t)&hdac->Instance->DHR8R1;\r
- break;\r
- default:\r
- break;\r
- }\r
- }\r
- else\r
- {\r
- /* Set the DMA transfer complete callback for channel2 */\r
- hdac->DMA_Handle2->XferCpltCallback = DAC_DMAConvCpltCh2;\r
-\r
- /* Set the DMA half transfer complete callback for channel2 */\r
- hdac->DMA_Handle2->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh2;\r
-\r
- /* Set the DMA error callback for channel2 */\r
- hdac->DMA_Handle2->XferErrorCallback = DAC_DMAErrorCh2;\r
-\r
- /* Enable the selected DAC channel2 DMA request */\r
- hdac->Instance->CR |= DAC_CR_DMAEN2;\r
-\r
- /* Case of use of channel 2 */\r
- switch(Alignment)\r
- {\r
- case DAC_ALIGN_12B_R:\r
- /* Get DHR12R2 address */\r
- tmpreg = (uint32_t)&hdac->Instance->DHR12R2;\r
- break;\r
- case DAC_ALIGN_12B_L:\r
- /* Get DHR12L2 address */\r
- tmpreg = (uint32_t)&hdac->Instance->DHR12L2;\r
- break;\r
- case DAC_ALIGN_8B_R:\r
- /* Get DHR8R2 address */\r
- tmpreg = (uint32_t)&hdac->Instance->DHR8R2;\r
- break;\r
- default:\r
- break;\r
- }\r
- }\r
- \r
- /* Enable the DMA Stream */\r
- if(Channel == DAC_CHANNEL_1)\r
- {\r
- /* Enable the DAC DMA underrun interrupt */\r
- __HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR1);\r
- \r
- /* Enable the DMA Stream */\r
- HAL_DMA_Start_IT(hdac->DMA_Handle1, (uint32_t)pData, tmpreg, Length);\r
- } \r
- else\r
- {\r
- /* Enable the DAC DMA underrun interrupt */\r
- __HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR2);\r
- \r
- /* Enable the DMA Stream */\r
- HAL_DMA_Start_IT(hdac->DMA_Handle2, (uint32_t)pData, tmpreg, Length);\r
- }\r
- \r
- /* Enable the Peripheral */\r
- __HAL_DAC_ENABLE(hdac, Channel);\r
- \r
- /* Process Unlocked */\r
- __HAL_UNLOCK(hdac);\r
- \r
- /* Return function status */\r
- return HAL_OK;\r
-}\r
-\r
-/**\r
- * @brief Disables DAC and stop conversion of channel.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @param Channel: The selected DAC channel. \r
- * This parameter can be one of the following values:\r
- * @arg DAC_CHANNEL_1: DAC Channel1 selected\r
- * @arg DAC_CHANNEL_2: DAC Channel2 selected \r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_DAC_Stop_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel)\r
-{\r
- HAL_StatusTypeDef status = HAL_OK;\r
-\r
- /* Check the parameters */\r
- assert_param(IS_DAC_CHANNEL(Channel));\r
- \r
- /* Disable the selected DAC channel DMA request */\r
- hdac->Instance->CR &= ~(DAC_CR_DMAEN1 << Channel);\r
- \r
- /* Disable the Peripheral */\r
- __HAL_DAC_DISABLE(hdac, Channel);\r
- \r
- /* Disable the DMA Channel */\r
- /* Channel1 is used */\r
- if(Channel == DAC_CHANNEL_1)\r
- { \r
- status = HAL_DMA_Abort(hdac->DMA_Handle1);\r
- }\r
- else /* Channel2 is used for */\r
- { \r
- status = HAL_DMA_Abort(hdac->DMA_Handle2); \r
- }\r
-\r
- /* Check if DMA Channel effectively disabled */\r
- if(status != HAL_OK)\r
- {\r
- /* Update DAC state machine to error */\r
- hdac->State = HAL_DAC_STATE_ERROR; \r
- }\r
- else\r
- {\r
- /* Change DAC state */\r
- hdac->State = HAL_DAC_STATE_READY;\r
- }\r
-\r
- /* Return function status */\r
- return status;\r
-}\r
-\r
-/**\r
- * @brief Returns the last data output value of the selected DAC channel.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @param Channel: The selected DAC channel. \r
- * This parameter can be one of the following values:\r
- * @arg DAC_CHANNEL_1: DAC Channel1 selected\r
- * @arg DAC_CHANNEL_2: DAC Channel2 selected\r
- * @retval The selected DAC channel data output value.\r
- */\r
-uint32_t HAL_DAC_GetValue(DAC_HandleTypeDef* hdac, uint32_t Channel)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_DAC_CHANNEL(Channel));\r
- \r
- /* Returns the DAC channel data output register value */\r
- if(Channel == DAC_CHANNEL_1)\r
- {\r
- return hdac->Instance->DOR1;\r
- }\r
- else\r
- {\r
- return hdac->Instance->DOR2;\r
- }\r
-}\r
-\r
-/**\r
- * @brief Handles DAC interrupt request \r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @retval None\r
- */\r
-void HAL_DAC_IRQHandler(DAC_HandleTypeDef* hdac)\r
-{\r
- /* Check underrun channel 1 flag */\r
- if(__HAL_DAC_GET_FLAG(hdac, DAC_FLAG_DMAUDR1))\r
- {\r
- /* Change DAC state to error state */\r
- hdac->State = HAL_DAC_STATE_ERROR;\r
- \r
- /* Set DAC error code to channel1 DMA underrun error */\r
- hdac->ErrorCode |= HAL_DAC_ERROR_DMAUNDERRUNCH1;\r
- \r
- /* Clear the underrun flag */\r
- __HAL_DAC_CLEAR_FLAG(hdac,DAC_FLAG_DMAUDR1);\r
- \r
- /* Disable the selected DAC channel1 DMA request */\r
- hdac->Instance->CR &= ~DAC_CR_DMAEN1;\r
- \r
- /* Error callback */ \r
- HAL_DAC_DMAUnderrunCallbackCh1(hdac);\r
- }\r
- /* Check underrun channel 2 flag */\r
- if(__HAL_DAC_GET_FLAG(hdac, DAC_FLAG_DMAUDR2))\r
- {\r
- /* Change DAC state to error state */\r
- hdac->State = HAL_DAC_STATE_ERROR;\r
- \r
- /* Set DAC error code to channel2 DMA underrun error */\r
- hdac->ErrorCode |= HAL_DAC_ERROR_DMAUNDERRUNCH2;\r
- \r
- /* Clear the underrun flag */\r
- __HAL_DAC_CLEAR_FLAG(hdac,DAC_FLAG_DMAUDR2);\r
- \r
- /* Disable the selected DAC channel1 DMA request */\r
- hdac->Instance->CR &= ~DAC_CR_DMAEN2;\r
- \r
- /* Error callback */ \r
- HAL_DACEx_DMAUnderrunCallbackCh2(hdac);\r
- }\r
-}\r
-\r
-/**\r
- * @brief Conversion complete callback in non blocking mode for Channel1 \r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @retval None\r
- */\r
-__weak void HAL_DAC_ConvCpltCallbackCh1(DAC_HandleTypeDef* hdac)\r
-{\r
- /* NOTE : This function Should not be modified, when the callback is needed,\r
- the HAL_DAC_ConvCpltCallback could be implemented in the user file\r
- */\r
-}\r
-\r
-/**\r
- * @brief Conversion half DMA transfer callback in non blocking mode for Channel1 \r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @retval None\r
- */\r
-__weak void HAL_DAC_ConvHalfCpltCallbackCh1(DAC_HandleTypeDef* hdac)\r
-{\r
- /* NOTE : This function Should not be modified, when the callback is needed,\r
- the HAL_DAC_ConvHalfCpltCallbackCh1 could be implemented in the user file\r
- */\r
-}\r
-\r
-/**\r
- * @brief Error DAC callback for Channel1.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @retval None\r
- */\r
-__weak void HAL_DAC_ErrorCallbackCh1(DAC_HandleTypeDef *hdac)\r
-{\r
- /* NOTE : This function Should not be modified, when the callback is needed,\r
- the HAL_DAC_ErrorCallbackCh1 could be implemented in the user file\r
- */\r
-}\r
-\r
-/**\r
- * @brief DMA underrun DAC callback for channel1.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @retval None\r
- */\r
-__weak void HAL_DAC_DMAUnderrunCallbackCh1(DAC_HandleTypeDef *hdac)\r
-{\r
- /* NOTE : This function Should not be modified, when the callback is needed,\r
- the HAL_DAC_DMAUnderrunCallbackCh1 could be implemented in the user file\r
- */\r
-}\r
-\r
-/**\r
- * @}\r
- */\r
- \r
-/** @defgroup DAC_Exported_Functions_Group3 Peripheral Control functions\r
- * @brief Peripheral Control functions \r
- *\r
-@verbatim \r
- ==============================================================================\r
- ##### Peripheral Control functions #####\r
- ============================================================================== \r
- [..] This section provides functions allowing to:\r
- (+) Configure channels. \r
- (+) Set the specified data holding register value for DAC channel.\r
- \r
-@endverbatim\r
- * @{\r
- */\r
-\r
-/**\r
- * @brief Configures the selected DAC channel.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @param sConfig: DAC configuration structure.\r
- * @param Channel: The selected DAC channel. \r
- * This parameter can be one of the following values:\r
- * @arg DAC_CHANNEL_1: DAC Channel1 selected\r
- * @arg DAC_CHANNEL_2: DAC Channel2 selected\r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_DAC_ConfigChannel(DAC_HandleTypeDef* hdac, DAC_ChannelConfTypeDef* sConfig, uint32_t Channel)\r
-{\r
- uint32_t tmpreg1 = 0, tmpreg2 = 0;\r
-\r
- /* Check the DAC parameters */\r
- assert_param(IS_DAC_TRIGGER(sConfig->DAC_Trigger));\r
- assert_param(IS_DAC_OUTPUT_BUFFER_STATE(sConfig->DAC_OutputBuffer));\r
- assert_param(IS_DAC_CHANNEL(Channel));\r
- \r
- /* Process locked */\r
- __HAL_LOCK(hdac);\r
- \r
- /* Change DAC state */\r
- hdac->State = HAL_DAC_STATE_BUSY;\r
- \r
- /* Get the DAC CR value */\r
- tmpreg1 = hdac->Instance->CR;\r
- /* Clear BOFFx, TENx, TSELx, WAVEx and MAMPx bits */\r
- tmpreg1 &= ~(((uint32_t)(DAC_CR_MAMP1 | DAC_CR_WAVE1 | DAC_CR_TSEL1 | DAC_CR_TEN1 | DAC_CR_BOFF1)) << Channel);\r
- /* Configure for the selected DAC channel: buffer output, trigger */\r
- /* Set TSELx and TENx bits according to DAC_Trigger value */\r
- /* Set BOFFx bit according to DAC_OutputBuffer value */ \r
- tmpreg2 = (sConfig->DAC_Trigger | sConfig->DAC_OutputBuffer);\r
- /* Calculate CR register value depending on DAC_Channel */\r
- tmpreg1 |= tmpreg2 << Channel;\r
- /* Write to DAC CR */\r
- hdac->Instance->CR = tmpreg1;\r
- /* Disable wave generation */\r
- hdac->Instance->CR &= ~(DAC_CR_WAVE1 << Channel);\r
- \r
- /* Change DAC state */\r
- hdac->State = HAL_DAC_STATE_READY;\r
- \r
- /* Process unlocked */\r
- __HAL_UNLOCK(hdac);\r
- \r
- /* Return function status */\r
- return HAL_OK;\r
-}\r
-\r
-/**\r
- * @brief Set the specified data holding register value for DAC channel.\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @param Channel: The selected DAC channel. \r
- * This parameter can be one of the following values:\r
- * @arg DAC_CHANNEL_1: DAC Channel1 selected\r
- * @arg DAC_CHANNEL_2: DAC Channel2 selected \r
- * @param Alignment: Specifies the data alignment.\r
- * This parameter can be one of the following values:\r
- * @arg DAC_ALIGN_8B_R: 8bit right data alignment selected\r
- * @arg DAC_ALIGN_12B_L: 12bit left data alignment selected\r
- * @arg DAC_ALIGN_12B_R: 12bit right data alignment selected\r
- * @param Data: Data to be loaded in the selected data holding register.\r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_DAC_SetValue(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Alignment, uint32_t Data)\r
-{ \r
- __IO uint32_t tmp = 0;\r
- \r
- /* Check the parameters */\r
- assert_param(IS_DAC_CHANNEL(Channel));\r
- assert_param(IS_DAC_ALIGN(Alignment));\r
- assert_param(IS_DAC_DATA(Data));\r
- \r
- tmp = (uint32_t)hdac->Instance; \r
- if(Channel == DAC_CHANNEL_1)\r
- {\r
- tmp += DAC_DHR12R1_ALIGNMENT(Alignment);\r
- }\r
- else\r
- {\r
- tmp += DAC_DHR12R2_ALIGNMENT(Alignment);\r
- }\r
-\r
- /* Set the DAC channel1 selected data holding register */\r
- *(__IO uint32_t *) tmp = Data;\r
- \r
- /* Return function status */\r
- return HAL_OK;\r
-}\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/** @defgroup DAC_Exported_Functions_Group4 Peripheral State and Errors functions\r
- * @brief Peripheral State and Errors functions \r
- *\r
-@verbatim \r
- ==============================================================================\r
- ##### Peripheral State and Errors functions #####\r
- ============================================================================== \r
- [..]\r
- This subsection provides functions allowing to\r
- (+) Check the DAC state.\r
- (+) Check the DAC Errors.\r
- \r
-@endverbatim\r
- * @{\r
- */\r
-\r
-/**\r
- * @brief return the DAC state\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @retval HAL state\r
- */\r
-HAL_DAC_StateTypeDef HAL_DAC_GetState(DAC_HandleTypeDef* hdac)\r
-{\r
- /* Return DAC state */\r
- return hdac->State;\r
-}\r
-\r
-\r
-/**\r
- * @brief Return the DAC error code\r
- * @param hdac: pointer to a DAC_HandleTypeDef structure that contains\r
- * the configuration information for the specified DAC.\r
- * @retval DAC Error Code\r
- */\r
-uint32_t HAL_DAC_GetError(DAC_HandleTypeDef *hdac)\r
-{\r
- return hdac->ErrorCode;\r
-}\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/**\r
- * @brief DMA conversion complete callback. \r
- * @param hdma: pointer to a DMA_HandleTypeDef structure that contains\r
- * the configuration information for the specified DMA module.\r
- * @retval None\r
- */\r
-static void DAC_DMAConvCpltCh1(DMA_HandleTypeDef *hdma) \r
-{\r
- DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;\r
- \r
- HAL_DAC_ConvCpltCallbackCh1(hdac); \r
- \r
- hdac->State= HAL_DAC_STATE_READY;\r
-}\r
-\r
-/**\r
- * @brief DMA half transfer complete callback. \r
- * @param hdma: pointer to a DMA_HandleTypeDef structure that contains\r
- * the configuration information for the specified DMA module.\r
- * @retval None\r
- */\r
-static void DAC_DMAHalfConvCpltCh1(DMA_HandleTypeDef *hdma) \r
-{\r
- DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;\r
- /* Conversion complete callback */\r
- HAL_DAC_ConvHalfCpltCallbackCh1(hdac); \r
-}\r
-\r
-/**\r
- * @brief DMA error callback \r
- * @param hdma: pointer to a DMA_HandleTypeDef structure that contains\r
- * the configuration information for the specified DMA module.\r
- * @retval None\r
- */\r
-static void DAC_DMAErrorCh1(DMA_HandleTypeDef *hdma) \r
-{\r
- DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;\r
- \r
- /* Set DAC error code to DMA error */\r
- hdac->ErrorCode |= HAL_DAC_ERROR_DMA;\r
- \r
- HAL_DAC_ErrorCallbackCh1(hdac); \r
- \r
- hdac->State= HAL_DAC_STATE_READY;\r
-}\r
-\r
-/**\r
- * @}\r
- */\r
-#endif /* STM32F756xx || STM32F746xx */\r
-#endif /* HAL_DAC_MODULE_ENABLED */\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/\r
projects / freertos / blobdiff