| /** |
| ****************************************************************************** |
| * @file stm32l4xx_hal_dac_ex.c |
| * @author MCD Application Team |
| * @brief DAC HAL module driver. |
| * This file provides firmware functions to manage the extended |
| * functionalities of the DAC peripheral. |
| * |
| * |
| @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. |
| |
| (+) HAL_DACEx_SelfCalibrate to calibrate one DAC channel. |
| (+) HAL_DACEx_SetUserTrimming to set user trimming value. |
| (+) HAL_DACEx_GetTrimOffset to retrieve trimming value (factory setting |
| after reset, user setting if HAL_DACEx_SetUserTrimming have been used |
| at least one time after reset). |
| |
| @endverbatim |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© COPYRIGHT(c) 2017 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 "stm32l4xx_hal.h" |
| |
| /** @addtogroup STM32L4xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @defgroup DACEx DACEx |
| * @brief DAC Extended HAL module driver |
| * @{ |
| */ |
| |
| #ifdef HAL_DAC_MODULE_ENABLED |
| |
| /* Private typedef -----------------------------------------------------------*/ |
| /* Private define ------------------------------------------------------------*/ |
| /* Private macro -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private function prototypes -----------------------------------------------*/ |
| /* Exported functions --------------------------------------------------------*/ |
| |
| /** @defgroup DACEx_Exported_Functions DACEx Exported Functions |
| * @{ |
| */ |
| |
| /** @defgroup DACEx_Exported_Functions_Group2 IO operation functions |
| * @brief Extended IO operation functions |
| * |
| @verbatim |
| ============================================================================== |
| ##### Extended features functions ##### |
| ============================================================================== |
| [..] This section provides functions allowing to: |
| (+) Start conversion. |
| (+) Stop conversion. |
| (+) Start conversion and enable DMA transfer. |
| (+) Stop conversion and disable DMA transfer. |
| (+) Get result of conversion. |
| (+) Get result of dual mode conversion. |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Enable or disable 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: |
| * DAC_CHANNEL_1 / DAC_CHANNEL_2 |
| * @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 Enable or disable 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: |
| * DAC_CHANNEL_1 / DAC_CHANNEL_2 |
| * @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 (STM32L431xx) || defined (STM32L432xx) || defined (STM32L433xx) || defined (STM32L442xx) || defined (STM32L443xx) || \ |
| defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || defined (STM32L496xx) || defined (STM32L4A6xx) || \ |
| defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined(STM32L4S9xx) |
| |
| /** |
| * @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 = 0, tmp = 0; |
| |
| /* 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 << 8) | Data1; |
| } |
| else |
| { |
| data = ((uint32_t)Data2 << 16) | Data1; |
| } |
| |
| tmp = (uint32_t)hdac->Instance; |
| tmp += DAC_DHR12RD_ALIGNMENT(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_DACEx_DMAUnderrunCallbackCh2 could be implemented in the user file |
| */ |
| } |
| #endif /* STM32L431xx STM32L432xx STM32L433xx STM32L442xx STM32L443xx */ |
| /* STM32L471xx STM32L475xx STM32L476xx STM32L485xx STM32L486xx STM32L496xx STM32L4A6xx */ |
| /* STM32L4R5xx STM32L4R7xx STM32L4R9xx STM32L4S5xx STM32L4S7xx STM32L4S9xx */ |
| |
| /** |
| * @brief Run the self calibration of one DAC channel. |
| * @param hdac: pointer to a DAC_HandleTypeDef structure that contains |
| * the configuration information for the specified DAC. |
| * @param sConfig: DAC channel 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 Updates DAC_TrimmingValue. , DAC_UserTrimming set to DAC_UserTrimming |
| * @retval HAL status |
| * @note Calibration runs about 7 ms. |
| */ |
| |
| HAL_StatusTypeDef HAL_DACEx_SelfCalibrate (DAC_HandleTypeDef* hdac, DAC_ChannelConfTypeDef* sConfig, uint32_t Channel) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| __IO uint32_t tmp = 0; |
| uint32_t trimmingvalue = 0; |
| uint32_t delta; |
| |
| /* store/restore channel configuration structure purpose */ |
| uint32_t oldmodeconfiguration = 0; |
| |
| /* Check the parameters */ |
| assert_param(IS_DAC_CHANNEL(Channel)); |
| |
| /* Check the DAC handle allocation */ |
| /* Check if DAC running */ |
| if((hdac == NULL) || (hdac->State == HAL_DAC_STATE_BUSY)) |
| { |
| status = HAL_ERROR; |
| } |
| else |
| { |
| /* Process locked */ |
| __HAL_LOCK(hdac); |
| |
| /* Store configuration */ |
| oldmodeconfiguration = (hdac->Instance->MCR & (DAC_MCR_MODE1 << Channel)); |
| |
| /* Disable the selected DAC channel */ |
| CLEAR_BIT ((hdac->Instance->CR), (DAC_CR_EN1 << Channel)); |
| |
| /* Set mode in MCR for calibration */ |
| MODIFY_REG(hdac->Instance->MCR, (DAC_MCR_MODE1 << Channel), 0); |
| |
| /* Set DAC Channel1 DHR register to the middle value */ |
| tmp = (uint32_t)hdac->Instance; |
| |
| #if defined (STM32L431xx) || defined (STM32L432xx) || defined (STM32L433xx) || defined (STM32L442xx) || defined (STM32L443xx) || \ |
| defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || defined (STM32L496xx) || defined (STM32L4A6xx) || \ |
| defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined(STM32L4S9xx) |
| if(Channel == DAC_CHANNEL_1) |
| { |
| tmp += DAC_DHR12R1_ALIGNMENT(DAC_ALIGN_12B_R); |
| } |
| else |
| { |
| tmp += DAC_DHR12R2_ALIGNMENT(DAC_ALIGN_12B_R); |
| } |
| #endif /* STM32L431xx STM32L432xx STM32L433xx STM32L442xx STM32L443xx */ |
| /* STM32L471xx STM32L475xx STM32L476xx STM32L485xx STM32L486xx STM32L496xx STM32L4A6xx */ |
| /* STM32L4R5xx STM32L4R7xx STM32L4R9xx STM32L4S5xx STM32L4S7xx STM32L4S9xx */ |
| #if defined (STM32L451xx) || defined (STM32L452xx) || defined (STM32L462xx) |
| tmp += DAC_DHR12R1_ALIGNMENT(DAC_ALIGN_12B_R); |
| #endif /* STM32L451xx STM32L452xx STM32L462xx */ |
| *(__IO uint32_t *) tmp = 0x0800; |
| |
| /* Enable the selected DAC channel calibration */ |
| /* i.e. set DAC_CR_CENx bit */ |
| SET_BIT ((hdac->Instance->CR), (DAC_CR_CEN1 << Channel)); |
| |
| /* Init trimming counter */ |
| /* Medium value */ |
| trimmingvalue = 16; |
| delta = 8; |
| while (delta != 0) |
| { |
| /* Set candidate trimming */ |
| MODIFY_REG(hdac->Instance->CCR, (DAC_CCR_OTRIM1<<Channel), (trimmingvalue<<Channel)); |
| |
| /* tOFFTRIMmax delay x ms as per datasheet (electrical characteristics */ |
| /* i.e. minimum time needed between two calibration steps */ |
| HAL_Delay(1); |
| |
| if ((hdac->Instance->SR & (DAC_SR_CAL_FLAG1<<Channel)) == (DAC_SR_CAL_FLAG1<<Channel)) |
| { |
| /* DAC_SR_CAL_FLAGx is HIGH try higher trimming */ |
| trimmingvalue -= delta; |
| } |
| else |
| { |
| /* DAC_SR_CAL_FLAGx is LOW try lower trimming */ |
| trimmingvalue += delta; |
| } |
| delta >>= 1; |
| } |
| |
| /* Still need to check if right calibration is current value or one step below */ |
| /* Indeed the first value that causes the DAC_SR_CAL_FLAGx bit to change from 0 to 1 */ |
| /* Set candidate trimming */ |
| MODIFY_REG(hdac->Instance->CCR, (DAC_CCR_OTRIM1<<Channel), (trimmingvalue<<Channel)); |
| |
| /* tOFFTRIMmax delay x ms as per datasheet (electrical characteristics */ |
| /* i.e. minimum time needed between two calibration steps */ |
| HAL_Delay(1); |
| |
| if ((hdac->Instance->SR & (DAC_SR_CAL_FLAG1<<Channel)) == RESET) |
| { |
| /* OPAMP_CSR_OUTCAL is actually one value more */ |
| trimmingvalue++; |
| /* Set right trimming */ |
| MODIFY_REG(hdac->Instance->CCR, (DAC_CCR_OTRIM1<<Channel), (trimmingvalue<<Channel)); |
| } |
| |
| /* Disable the selected DAC channel calibration */ |
| /* i.e. clear DAC_CR_CENx bit */ |
| CLEAR_BIT ((hdac->Instance->CR), (DAC_CR_CEN1 << Channel)); |
| |
| sConfig->DAC_TrimmingValue = trimmingvalue; |
| sConfig->DAC_UserTrimming = DAC_TRIMMING_USER; |
| |
| /* Restore configuration */ |
| MODIFY_REG(hdac->Instance->MCR, (DAC_MCR_MODE1 << Channel), oldmodeconfiguration); |
| |
| /* Process unlocked */ |
| __HAL_UNLOCK(hdac); |
| } |
| |
| return status; |
| } |
| |
| /** |
| * @brief Set the trimming mode and trimming value (user trimming mode applied). |
| * @param hdac: pointer to a DAC_HandleTypeDef structure that contains |
| * the configuration information for the specified DAC. |
| * @param sConfig: DAC configuration structure updated with new DAC trimming value. |
| * @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 NewTrimmingValue: DAC new trimming value |
| * @retval HAL status |
| */ |
| |
| HAL_StatusTypeDef HAL_DACEx_SetUserTrimming (DAC_HandleTypeDef* hdac, DAC_ChannelConfTypeDef* sConfig, uint32_t Channel, uint32_t NewTrimmingValue) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| /* Check the parameters */ |
| assert_param(IS_DAC_CHANNEL(Channel)); |
| assert_param(IS_DAC_NEWTRIMMINGVALUE(NewTrimmingValue)); |
| |
| /* Check the DAC handle allocation */ |
| if(hdac == NULL) |
| { |
| status = HAL_ERROR; |
| } |
| else |
| { |
| /* Process locked */ |
| __HAL_LOCK(hdac); |
| |
| /* Set new trimming */ |
| MODIFY_REG(hdac->Instance->CCR, (DAC_CCR_OTRIM1<<Channel), (NewTrimmingValue<<Channel)); |
| |
| /* Update trimming mode */ |
| sConfig->DAC_UserTrimming = DAC_TRIMMING_USER; |
| sConfig->DAC_TrimmingValue = NewTrimmingValue; |
| |
| /* Process unlocked */ |
| __HAL_UNLOCK(hdac); |
| } |
| return status; |
| } |
| |
| /** |
| * @brief Return the DAC trimming value. |
| * @param hdac : DAC handle |
| * @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 Trimming value : range: 0->31 |
| * |
| */ |
| |
| uint32_t HAL_DACEx_GetTrimOffset (DAC_HandleTypeDef *hdac, uint32_t Channel) |
| { |
| uint32_t trimmingvalue = 0; |
| |
| /* Check the DAC handle allocation */ |
| /* And not in Reset state */ |
| if((hdac == NULL) || (hdac->State == HAL_DAC_STATE_RESET)) |
| { |
| return HAL_ERROR; |
| } |
| else |
| { |
| /* Check the parameter */ |
| assert_param(IS_DAC_CHANNEL(Channel)); |
| |
| /* Retrieve trimming */ |
| trimmingvalue = ((hdac->Instance->CCR & (DAC_CCR_OTRIM1 << Channel)) >> Channel); |
| } |
| return trimmingvalue; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| #if defined (STM32L431xx) || defined (STM32L432xx) || defined (STM32L433xx) || defined (STM32L442xx) || defined (STM32L443xx) || \ |
| defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || defined (STM32L496xx) || defined (STM32L4A6xx) || \ |
| defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined(STM32L4S9xx) |
| |
| /** @defgroup DACEx_Exported_Functions_Group3 Peripheral Control functions |
| * @brief Extended 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 Return 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 = 0; |
| |
| tmp |= hdac->Instance->DOR1; |
| |
| tmp |= hdac->Instance->DOR2 << 16; |
| |
| /* Returns the DAC channel data output register value */ |
| return tmp; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* STM32L431xx STM32L432xx STM32L433xx STM32L442xx STM32L443xx */ |
| /* STM32L471xx STM32L475xx STM32L476xx STM32L485xx STM32L486xx STM32L496xx STM32L4A6xx */ |
| /* STM32L4R5xx STM32L4R7xx STM32L4R9xx STM32L4S5xx STM32L4S7xx STM32L4S9xx */ |
| |
| /** |
| * @} |
| */ |
| |
| #if defined (STM32L431xx) || defined (STM32L432xx) || defined (STM32L433xx) || defined (STM32L442xx) || defined (STM32L443xx) || \ |
| defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || defined (STM32L496xx) || defined (STM32L4A6xx) || \ |
| defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined(STM32L4S9xx) |
| |
| /* Private functions ---------------------------------------------------------*/ |
| /** @defgroup DACEx_Private_Functions DACEx private functions |
| * @brief Extended private functions |
| * @{ |
| */ |
| |
| /** |
| * @brief DMA conversion complete callback. |
| * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| * the configuration information for the specified DMA module. |
| * @retval None |
| */ |
| void DAC_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 |
| */ |
| 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 |
| */ |
| 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 /* STM32L431xx STM32L432xx STM32L433xx STM32L442xx STM32L443xx */ |
| /* STM32L471xx STM32L475xx STM32L476xx STM32L485xx STM32L486xx STM32L496xx STM32L4A6xx */ |
| /* STM32L4R5xx STM32L4R7xx STM32L4R9xx STM32L4S5xx STM32L4S7xx STM32L4S9xx */ |
| |
| #endif /* HAL_DAC_MODULE_ENABLED */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |