| /** |
| ****************************************************************************** |
| * @file stm32l0xx_hal_dac_ex.c |
| * @author MCD Application Team |
| * @brief Extended DAC HAL module driver. |
| * This file provides firmware functions to manage the following |
| * functionalities of DAC extension peripheral: |
| * + Extended features functions |
| * |
| * |
| @verbatim |
| ============================================================================== |
| ##### How to use this driver ##### |
| ============================================================================== |
| [..] |
| (+) When Dual mode is enabled (i.e DAC Channel1 and Channel2 are used simultaneously) : |
| Use HAL_DACEx_DualGetValue() to get digital data to be converted and use |
| HAL_DACEx_DualSetValue() to set digital value to converted simultaneously in Channel 1 and Channel 2. |
| (+) Use HAL_DACEx_TriangleWaveGenerate() to generate Triangle signal. |
| (+) Use HAL_DACEx_NoiseWaveGenerate() to generate Noise signal. |
| |
| @endverbatim |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| ****************************************************************************** |
| */ |
| |
| |
| #if !defined (STM32L011xx) && !defined (STM32L021xx) && !defined (STM32L031xx) && !defined (STM32L041xx) && !defined (STM32L051xx) && !defined (STM32L061xx) && !defined (STM32L071xx) && !defined (STM32L081xx) |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32l0xx_hal.h" |
| |
| #ifdef HAL_DAC_MODULE_ENABLED |
| /** @addtogroup STM32L0xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @addtogroup DACEx DACEx |
| * @brief DAC driver modules |
| * @{ |
| */ |
| |
| /** @addtogroup DACEx_Private |
| * @{ |
| */ |
| |
| /* Private typedef -----------------------------------------------------------*/ |
| /* Private define ------------------------------------------------------------*/ |
| /* Private macro -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private function prototypes -----------------------------------------------*/ |
| /* Private functions ---------------------------------------------------------*/ |
| |
| #if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx) |
| static void DAC_DMAConvCpltCh2(DMA_HandleTypeDef *hdma); |
| static void DAC_DMAErrorCh2(DMA_HandleTypeDef *hdma); |
| static void DAC_DMAHalfConvCpltCh2(DMA_HandleTypeDef *hdma); |
| #endif |
| static void DAC_DMAConvCpltCh1(DMA_HandleTypeDef *hdma); |
| static void DAC_DMAErrorCh1(DMA_HandleTypeDef *hdma); |
| static void DAC_DMAHalfConvCpltCh1(DMA_HandleTypeDef *hdma); |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup DACEx_Exported_Functions |
| * @{ |
| */ |
| |
| /** @addtogroup DACEx_Exported_Functions_Group1 |
| * @brief Extended features functions |
| * |
| |
| * @{ |
| */ |
| |
| #if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx) |
| /** |
| * @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. |
| * @retval The selected DAC channel data output value. |
| */ |
| uint32_t HAL_DACEx_DualGetValue(DAC_HandleTypeDef* hdac) |
| { |
| uint32_t tmp = 0U; |
| |
| tmp |= hdac->Instance->DOR1; |
| |
| tmp |= hdac->Instance->DOR2 << 16U; |
| |
| /* Returns the DAC channel data output register value */ |
| return tmp; |
| } |
| #endif |
| |
| /** |
| * @brief Enables or disables the selected DAC channel wave generation. |
| * @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 Amplitude: Select max triangle amplitude. |
| * This parameter can be one of the following values: |
| * @arg DAC_TRIANGLEAMPLITUDE_1: Select max triangle amplitude of 1 |
| * @arg DAC_TRIANGLEAMPLITUDE_3: Select max triangle amplitude of 3 |
| * @arg DAC_TRIANGLEAMPLITUDE_7: Select max triangle amplitude of 7 |
| * @arg DAC_TRIANGLEAMPLITUDE_15: Select max triangle amplitude of 15 |
| * @arg DAC_TRIANGLEAMPLITUDE_31: Select max triangle amplitude of 31 |
| * @arg DAC_TRIANGLEAMPLITUDE_63: Select max triangle amplitude of 63 |
| * @arg DAC_TRIANGLEAMPLITUDE_127: Select max triangle amplitude of 127 |
| * @arg DAC_TRIANGLEAMPLITUDE_255: Select max triangle amplitude of 255 |
| * @arg DAC_TRIANGLEAMPLITUDE_511: Select max triangle amplitude of 511 |
| * @arg DAC_TRIANGLEAMPLITUDE_1023: Select max triangle amplitude of 1023 |
| * @arg DAC_TRIANGLEAMPLITUDE_2047: Select max triangle amplitude of 2047 |
| * @arg DAC_TRIANGLEAMPLITUDE_4095: Select max triangle amplitude of 4095 |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_DACEx_TriangleWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude) |
| { |
| /* Check the parameters */ |
| assert_param(IS_DAC_CHANNEL(Channel)); |
| assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude)); |
| |
| /* Process locked */ |
| __HAL_LOCK(hdac); |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_BUSY; |
| |
| /* Enable the triangle wave generation for the selected DAC channel */ |
| MODIFY_REG(hdac->Instance->CR, ((DAC_CR_WAVE1)|(DAC_CR_MAMP1))<<Channel, (DAC_CR_WAVE1_1 | Amplitude) << Channel); |
| |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_READY; |
| |
| /* Process unlocked */ |
| __HAL_UNLOCK(hdac); |
| |
| /* Return function status */ |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Enables or disables the selected DAC channel wave generation. |
| * @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 Amplitude: Unmask DAC channel LFSR for noise wave generation. |
| * This parameter can be one of the following values: |
| * @arg DAC_LFSRUNMASK_BIT0: Unmask DAC channel LFSR bit0 for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS1_0: Unmask DAC channel LFSR bit[1:0] for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS2_0: Unmask DAC channel LFSR bit[2:0] for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS3_0: Unmask DAC channel LFSR bit[3:0] for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS4_0: Unmask DAC channel LFSR bit[4:0] for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS5_0: Unmask DAC channel LFSR bit[5:0] for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS6_0: Unmask DAC channel LFSR bit[6:0] for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS7_0: Unmask DAC channel LFSR bit[7:0] for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS8_0: Unmask DAC channel LFSR bit[8:0] for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS9_0: Unmask DAC channel LFSR bit[9:0] for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS10_0: Unmask DAC channel LFSR bit[10:0] for noise wave generation |
| * @arg DAC_LFSRUNMASK_BITS11_0: Unmask DAC channel LFSR bit[11:0] for noise wave generation |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_DACEx_NoiseWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude) |
| { |
| /* Check the parameters */ |
| assert_param(IS_DAC_CHANNEL(Channel)); |
| assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude)); |
| |
| /* Process locked */ |
| __HAL_LOCK(hdac); |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_BUSY; |
| |
| /* Enable the noise wave generation for the selected DAC channel */ |
| MODIFY_REG(hdac->Instance->CR, ((DAC_CR_WAVE1)|(DAC_CR_MAMP1))<<Channel, (DAC_CR_WAVE1_0 | Amplitude) << Channel); |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_READY; |
| |
| /* Process unlocked */ |
| __HAL_UNLOCK(hdac); |
| |
| /* Return function status */ |
| return HAL_OK; |
| } |
| |
| #if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx) |
| /** |
| * @brief Set the specified data holding register value for dual DAC channel. |
| * @param hdac: pointer to a DAC_HandleTypeDef structure that contains |
| * the configuration information for the specified DAC. |
| * @param Alignment: Specifies the data alignment for dual channel DAC. |
| * This parameter can be one of the following values: |
| * DAC_ALIGN_8B_R: 8bit right data alignment selected |
| * DAC_ALIGN_12B_L: 12bit left data alignment selected |
| * DAC_ALIGN_12B_R: 12bit right data alignment selected |
| * @param Data1: Data for DAC Channel2 to be loaded in the selected data holding register. |
| * @param Data2: Data for DAC Channel1 to be loaded in the selected data holding register. |
| * @note In dual mode, a unique register access is required to write in both |
| * DAC channels at the same time. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_DACEx_DualSetValue(DAC_HandleTypeDef* hdac, uint32_t Alignment, uint32_t Data1, uint32_t Data2) |
| { |
| uint32_t data = 0U, tmp = 0U; |
| |
| /* Check the parameters */ |
| assert_param(IS_DAC_ALIGN(Alignment)); |
| assert_param(IS_DAC_DATA(Data1)); |
| assert_param(IS_DAC_DATA(Data2)); |
| |
| /* Calculate and set dual DAC data holding register value */ |
| if (Alignment == DAC_ALIGN_8B_R) |
| { |
| data = ((uint32_t)Data2 << 8U) | Data1; |
| } |
| else |
| { |
| data = ((uint32_t)Data2 << 16U) | Data1; |
| } |
| |
| tmp = (uint32_t)hdac->Instance; |
| tmp += DAC_DHR12RD_ALIGNEMENT(Alignment); |
| |
| /* Set the dual DAC selected data holding register */ |
| *(__IO uint32_t *)tmp = data; |
| |
| /* Return function status */ |
| return HAL_OK; |
| } |
| |
| |
| /** |
| * @brief Conversion complete callback in non blocking mode for Channel2 |
| * @param hdac: pointer to a DAC_HandleTypeDef structure that contains |
| * the configuration information for the specified DAC. |
| * @retval None |
| */ |
| __weak void HAL_DACEx_ConvCpltCallbackCh2(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_DACEx_ConvCpltCallbackCh2 could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Conversion half DMA transfer callback in non blocking mode for Channel2 |
| * @param hdac: pointer to a DAC_HandleTypeDef structure that contains |
| * the configuration information for the specified DAC. |
| * @retval None |
| */ |
| __weak void HAL_DACEx_ConvHalfCpltCallbackCh2(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_DACEx_ConvHalfCpltCallbackCh2 could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Error DAC callback for Channel2. |
| * @param hdac: pointer to a DAC_HandleTypeDef structure that contains |
| * the configuration information for the specified DAC. |
| * @retval None |
| */ |
| __weak void HAL_DACEx_ErrorCallbackCh2(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_DACEx_ErrorCallbackCh2 could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief DMA underrun DAC callback for channel2. |
| * @param hdac: pointer to a DAC_HandleTypeDef structure that contains |
| * the configuration information for the specified DAC. |
| * @retval None |
| */ |
| __weak void HAL_DACEx_DMAUnderrunCallbackCh2(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_DMAUnderrunCallbackCh2 could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @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 = 0U, tmp2 = 0U; |
| |
| /* 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 Peripharal */ |
| __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 */ |
| SET_BIT(hdac->Instance->SWTRIGR, 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*/ |
| SET_BIT(hdac->Instance->SWTRIGR, DAC_SWTRIGR_SWTRIG2); |
| } |
| } |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_READY; |
| |
| /* Process unlocked */ |
| __HAL_UNLOCK(hdac); |
| |
| /* Return function status */ |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief 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 |
| * @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 = 0U; |
| |
| /* Check the parameters */ |
| assert_param(IS_DAC_CHANNEL(Channel)); |
| assert_param(IS_DAC_ALIGN(Alignment)); |
| |
| /* Process locked */ |
| __HAL_LOCK(hdac); |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_BUSY; |
| |
| if(Channel == DAC_CHANNEL_1) |
| { |
| /* Set the DMA transfer complete callback for channel1 */ |
| hdac->DMA_Handle1->XferCpltCallback = DAC_DMAConvCpltCh1; |
| |
| /* Set the DMA half transfer complete callback for channel1 */ |
| hdac->DMA_Handle1->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh1; |
| |
| /* Set the DMA error callback for channel1 */ |
| hdac->DMA_Handle1->XferErrorCallback = DAC_DMAErrorCh1; |
| |
| /* Enable the selected DAC channel1 DMA request */ |
| SET_BIT(hdac->Instance->CR, DAC_CR_DMAEN1); |
| |
| /* Case of use of channel 1 */ |
| switch(Alignment) |
| { |
| case DAC_ALIGN_12B_R: |
| /* Get DHR12R1 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR12R1; |
| break; |
| case DAC_ALIGN_12B_L: |
| /* Get DHR12L1 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR12L1; |
| break; |
| case DAC_ALIGN_8B_R: |
| /* Get DHR8R1 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR8R1; |
| break; |
| default: |
| break; |
| } |
| UNUSED(tmpreg); /* avoid warning on tmpreg affectation with stupid compiler */ |
| } |
| else |
| { |
| /* Set the DMA transfer complete callback for channel2 */ |
| hdac->DMA_Handle2->XferCpltCallback = DAC_DMAConvCpltCh2; |
| |
| /* Set the DMA half transfer complete callback for channel2 */ |
| hdac->DMA_Handle2->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh2; |
| |
| /* Set the DMA error callback for channel2 */ |
| hdac->DMA_Handle2->XferErrorCallback = DAC_DMAErrorCh2; |
| |
| /* Enable the selected DAC channel2 DMA request */ |
| SET_BIT(hdac->Instance->CR, DAC_CR_DMAEN2); |
| |
| /* Case of use of channel 2 */ |
| switch(Alignment) |
| { |
| case DAC_ALIGN_12B_R: |
| /* Get DHR12R2 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR12R2; |
| break; |
| case DAC_ALIGN_12B_L: |
| /* Get DHR12L2 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR12L2; |
| break; |
| case DAC_ALIGN_8B_R: |
| /* Get DHR8R2 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR8R2; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /* Enable the DMA Stream */ |
| if(Channel == DAC_CHANNEL_1) |
| { |
| /* Enable the DAC DMA underrun interrupt */ |
| __HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR1); |
| |
| /* Enable the DMA Stream */ |
| 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 Peripharal */ |
| __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 */ |
| CLEAR_BIT(hdac->Instance->CR, (DAC_CR_DMAEN1 << Channel)); |
| |
| /* Disable the Peripharal */ |
| __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 flag of DAC channel 1 */ |
| if(__HAL_DAC_GET_FLAG(hdac, DAC_FLAG_DMAUDR1)) |
| { |
| /* Change DAC state to error state */ |
| hdac->State = HAL_DAC_STATE_ERROR; |
| |
| /* Set DAC error code to chanel1 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 */ |
| CLEAR_BIT(hdac->Instance->CR, DAC_CR_DMAEN1); |
| |
| /* Error callback */ |
| HAL_DAC_DMAUnderrunCallbackCh1(hdac); |
| } |
| |
| /* Check underrun flag of DAC channel 2 */ |
| if(__HAL_DAC_GET_FLAG(hdac, DAC_FLAG_DMAUDR2)) |
| { |
| /* Change DAC state to error state */ |
| hdac->State = HAL_DAC_STATE_ERROR; |
| |
| /* Set DAC error code to channel2 DMA underrun error */ |
| 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 */ |
| CLEAR_BIT(hdac->Instance->CR, DAC_CR_DMAEN2); |
| |
| /* Error callback */ |
| HAL_DACEx_DMAUnderrunCallbackCh2(hdac); |
| } |
| } |
| |
| |
| /** |
| * @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 = 0U; |
| |
| /* 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_ALIGNEMENT(Alignment); |
| } |
| else |
| { |
| tmp += DAC_DHR12R2_ALIGNEMENT(Alignment); |
| } |
| |
| /* Set the DAC channel selected data holding register */ |
| *(__IO uint32_t *) tmp = Data; |
| |
| /* Return function status */ |
| return HAL_OK; |
| } |
| #else /* All products with only one channel */ |
| |
| /** |
| * @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 |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_DAC_Start(DAC_HandleTypeDef* hdac, uint32_t Channel) |
| { |
| uint32_t tmp1 = 0U, tmp2 = 0U; |
| |
| /* 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 Peripharal */ |
| __HAL_DAC_ENABLE(hdac, Channel); |
| |
| 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 */ |
| SET_BIT(hdac->Instance->SWTRIGR, DAC_SWTRIGR_SWTRIG1); |
| } |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_READY; |
| |
| /* Process unlocked */ |
| __HAL_UNLOCK(hdac); |
| |
| /* 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 |
| * @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 = 0U; |
| |
| /* Check the parameters */ |
| assert_param(IS_DAC_CHANNEL(Channel)); |
| assert_param(IS_DAC_ALIGN(Alignment)); |
| |
| /* Process locked */ |
| __HAL_LOCK(hdac); |
| |
| /* Change DAC state */ |
| hdac->State = HAL_DAC_STATE_BUSY; |
| |
| /* Set the DMA transfer complete callback for channel1 */ |
| hdac->DMA_Handle1->XferCpltCallback = DAC_DMAConvCpltCh1; |
| |
| /* Set the DMA half transfer complete callback for channel1 */ |
| hdac->DMA_Handle1->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh1; |
| |
| /* Set the DMA error callback for channel1 */ |
| hdac->DMA_Handle1->XferErrorCallback = DAC_DMAErrorCh1; |
| |
| /* Enable the selected DAC channel1 DMA request */ |
| SET_BIT(hdac->Instance->CR, DAC_CR_DMAEN1); |
| |
| /* Case of use of channel 1 */ |
| switch(Alignment) |
| { |
| case DAC_ALIGN_12B_R: |
| /* Get DHR12R1 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR12R1; |
| break; |
| case DAC_ALIGN_12B_L: |
| /* Get DHR12L1 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR12L1; |
| break; |
| case DAC_ALIGN_8B_R: |
| /* Get DHR8R1 address */ |
| tmpreg = (uint32_t)&hdac->Instance->DHR8R1; |
| break; |
| default: |
| break; |
| } |
| UNUSED(tmpreg); /* avoid warning on tmpreg affectation with stupid compiler */ |
| |
| /* Enable the DMA Stream */ |
| /* 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); |
| |
| /* Enable the Peripharal */ |
| __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 |
| * @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 */ |
| CLEAR_BIT(hdac->Instance->CR, (DAC_CR_DMAEN1 << Channel)); |
| |
| /* Disable the Peripharal */ |
| __HAL_DAC_DISABLE(hdac, Channel); |
| |
| /* Disable the DMA Channel */ |
| status = HAL_DMA_Abort(hdac->DMA_Handle1); |
| |
| /* 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 |
| * @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 */ |
| return hdac->Instance->DOR1; |
| } |
| |
| /** |
| * @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 flag of DAC channel 1 */ |
| if(__HAL_DAC_GET_FLAG(hdac, DAC_FLAG_DMAUDR1)) |
| { |
| /* Change DAC state to error state */ |
| hdac->State = HAL_DAC_STATE_ERROR; |
| |
| /* Set DAC error code to chanel1 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 */ |
| CLEAR_BIT(hdac->Instance->CR, DAC_CR_DMAEN1); |
| |
| /* Error callback */ |
| HAL_DAC_DMAUnderrunCallbackCh1(hdac); |
| } |
| } |
| |
| /** |
| * @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 |
| * @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 = 0U; |
| |
| /* 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; |
| tmp += DAC_DHR12R1_ALIGNEMENT(Alignment); |
| |
| /* Set the DAC channel selected data holding register */ |
| *(__IO uint32_t *) tmp = Data; |
| |
| /* Return function status */ |
| return HAL_OK; |
| } |
| |
| #endif /* #if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx) */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** @addtogroup DACEx_Private |
| * @{ |
| */ |
| #if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx) |
| /** |
| * @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_DMAConvCpltCh2(DMA_HandleTypeDef *hdma) |
| { |
| DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| |
| HAL_DACEx_ConvCpltCallbackCh2(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_DMAHalfConvCpltCh2(DMA_HandleTypeDef *hdma) |
| { |
| DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| /* Conversion complete callback */ |
| HAL_DACEx_ConvHalfCpltCallbackCh2(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_DMAErrorCh2(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_DACEx_ErrorCallbackCh2(hdac); |
| |
| hdac->State= HAL_DAC_STATE_READY; |
| } |
| #endif /* STM32L072xx || STM32L073xx || STM32L082xx || STM32L083xx */ |
| |
| /** |
| * @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 /* HAL_DAC_MODULE_ENABLED */ |
| #endif /* #if !defined (STM32L011xx) && !defined (STM32L021xx) && !defined (STM32L031xx) && !defined (STM32L041xx) && !defined (STM32L051xx) && !defined (STM32L061xx) && !defined (STM32L071xx) && !defined (STM32L081xx) */ |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
| |