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Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_hal_dac_ex.c')
| -rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_hal_dac_ex.c | 869 |
1 files changed, 869 insertions, 0 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_dac_ex.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_dac_ex.c new file mode 100644 index 0000000000..75ceee92bf --- /dev/null +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_dac_ex.c @@ -0,0 +1,869 @@ +/**
+ ******************************************************************************
+ * @file stm32h7xx_hal_dac_ex.c
+ * @author MCD Application Team
+ * @brief Extended DAC HAL module driver.
+ * This file provides firmware functions to manage the extended
+ * functionalities of the DAC peripheral.
+ *
+ *
+ @verbatim
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ *** Dual mode IO operation ***
+ ==============================
+ (+) Use HAL_DACEx_DualStart() to enable both channel and start conversion
+ for dual mode operation.
+ If software trigger is selected, using HAL_DACEx_DualStart() will start
+ the conversion of the value previously set by HAL_DACEx_DualSetValue().
+ (+) Use HAL_DACEx_DualStop() to disable both channel and stop conversion
+ for dual mode operation.
+ (+) Use HAL_DACEx_DualStart_DMA() to enable both channel and start conversion
+ for dual mode operation using DMA to feed DAC converters.
+ First issued trigger will start the conversion of the value previously
+ set by HAL_DACEx_DualSetValue().
+ The same callbacks that are used in single mode are called in dual mode to notify
+ transfer completion (half complete or complete), errors or underrun.
+ (+) Use HAL_DACEx_DualStop_DMA() to disable both channel and stop conversion
+ for dual mode operation using DMA to feed DAC converters.
+ (+) 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.
+
+ *** Signal generation operation ***
+ ===================================
+ (+) 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.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx_hal.h"
+
+/** @addtogroup STM32H7xx_HAL_Driver
+ * @{
+ */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+
+#if defined(DAC1) || defined(DAC2)
+
+/** @defgroup DACEx DACEx
+ * @brief DAC Extended HAL module driver
+ * @{
+ */
+
+/* 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 Enables DAC and starts conversion of both channels.
+ * @param hdac pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DACEx_DualStart(DAC_HandleTypeDef *hdac)
+{
+ uint32_t tmp_swtrig = 0UL;
+
+
+ /* Process locked */
+ __HAL_LOCK(hdac);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_BUSY;
+
+ /* Enable the Peripheral */
+ __HAL_DAC_ENABLE(hdac, DAC_CHANNEL_1);
+ __HAL_DAC_ENABLE(hdac, DAC_CHANNEL_2);
+
+ /* Check if software trigger enabled */
+ if ((hdac->Instance->CR & (DAC_CR_TEN1 | DAC_CR_TSEL1)) == DAC_CR_TEN1)
+ {
+ tmp_swtrig |= DAC_SWTRIGR_SWTRIG1;
+ }
+ if ((hdac->Instance->CR & (DAC_CR_TEN2 | DAC_CR_TSEL2)) == DAC_CR_TEN2)
+ {
+ tmp_swtrig |= DAC_SWTRIGR_SWTRIG2;
+ }
+ /* Enable the selected DAC software conversion*/
+ SET_BIT(hdac->Instance->SWTRIGR, tmp_swtrig);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_READY;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hdac);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Disables DAC and stop conversion of both channels.
+ * @param hdac pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DACEx_DualStop(DAC_HandleTypeDef *hdac)
+{
+
+ /* Disable the Peripheral */
+ __HAL_DAC_DISABLE(hdac, DAC_CHANNEL_1);
+ __HAL_DAC_DISABLE(hdac, DAC_CHANNEL_2);
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_READY;
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Enables DAC and starts conversion of both channel 1 and 2 of the same DAC.
+ * @param hdac pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel The DAC channel that will request data from DMA.
+ * 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_DACEx_DualStart_DMA(DAC_HandleTypeDef *hdac, uint32_t Channel, uint32_t *pData, uint32_t Length,
+ uint32_t Alignment)
+{
+ HAL_StatusTypeDef status;
+ uint32_t tmpreg = 0UL;
+
+ /* 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);
+ }
+ 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);
+ }
+
+ switch (Alignment)
+ {
+ case DAC_ALIGN_12B_R:
+ /* Get DHR12R1 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR12RD;
+ break;
+ case DAC_ALIGN_12B_L:
+ /* Get DHR12L1 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR12LD;
+ break;
+ case DAC_ALIGN_8B_R:
+ /* Get DHR8R1 address */
+ tmpreg = (uint32_t)&hdac->Instance->DHR8RD;
+ break;
+ default:
+ break;
+ }
+
+ /* Enable the DMA channel */
+ if (Channel == DAC_CHANNEL_1)
+ {
+ /* Enable the DAC DMA underrun interrupt */
+ __HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR1);
+
+ /* Enable the DMA channel */
+ status = 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 channel */
+ status = HAL_DMA_Start_IT(hdac->DMA_Handle2, (uint32_t)pData, tmpreg, Length);
+ }
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdac);
+
+ if (status == HAL_OK)
+ {
+ /* Enable the Peripheral */
+ __HAL_DAC_ENABLE(hdac, DAC_CHANNEL_1);
+ __HAL_DAC_ENABLE(hdac, DAC_CHANNEL_2);
+ }
+ else
+ {
+ hdac->ErrorCode |= HAL_DAC_ERROR_DMA;
+ }
+
+ /* Return function status */
+ return status;
+}
+
+/**
+ * @brief Disables DAC and stop conversion both channel.
+ * @param hdac pointer to a DAC_HandleTypeDef structure that contains
+ * the configuration information for the specified DAC.
+ * @param Channel The DAC channel that requests data from DMA.
+ * 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_DACEx_DualStop_DMA(DAC_HandleTypeDef *hdac, uint32_t Channel)
+{
+ HAL_StatusTypeDef status;
+
+
+ /* Disable the selected DAC channel DMA request */
+ CLEAR_BIT(hdac->Instance->CR, DAC_CR_DMAEN2 | DAC_CR_DMAEN1);
+
+ /* Disable the Peripheral */
+ __HAL_DAC_DISABLE(hdac, DAC_CHANNEL_1);
+ __HAL_DAC_DISABLE(hdac, DAC_CHANNEL_2);
+
+ /* Disable the DMA channel */
+
+ /* Channel1 is used */
+ if (Channel == DAC_CHANNEL_1)
+ {
+ /* Disable the DMA channel */
+ status = HAL_DMA_Abort(hdac->DMA_Handle1);
+
+ /* Disable the DAC DMA underrun interrupt */
+ __HAL_DAC_DISABLE_IT(hdac, DAC_IT_DMAUDR1);
+ }
+ else
+ {
+ /* Disable the DMA channel */
+ status = HAL_DMA_Abort(hdac->DMA_Handle2);
+
+ /* Disable the DAC DMA underrun interrupt */
+ __HAL_DAC_DISABLE_IT(hdac, DAC_IT_DMAUDR2);
+ }
+
+ /* 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 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:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @arg DAC_CHANNEL_2: DAC Channel2 selected
+ * @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 & 0x10UL), (DAC_CR_WAVE1_1 | Amplitude) << (Channel & 0x10UL));
+
+ /* 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:
+ * @arg DAC_CHANNEL_1: DAC Channel1 selected
+ * @arg DAC_CHANNEL_2: DAC Channel2 selected
+ * @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 & 0x10UL), (DAC_CR_WAVE1_0 | Amplitude) << (Channel & 0x10UL));
+
+ /* Change DAC state */
+ hdac->State = HAL_DAC_STATE_READY;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hdac);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Set the specified data holding register value for 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 Channel1 to be loaded in the selected data holding register.
+ * @param Data2 Data for DAC Channel2 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;
+ uint32_t tmp;
+
+ /* 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_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
+ */
+}
+
+/**
+ * @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;
+ uint32_t trimmingvalue;
+ uint32_t delta;
+
+ /* store/restore channel configuration structure purpose */
+ uint32_t oldmodeconfiguration;
+
+ /* Check the parameters */
+ assert_param(IS_DAC_CHANNEL(Channel));
+
+ /* Check the DAC handle allocation */
+ /* Check if DAC running */
+ if (hdac == NULL)
+ {
+ status = HAL_ERROR;
+ }
+ else if (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 & 0x10UL)));
+
+ /* Disable the selected DAC channel */
+ CLEAR_BIT((hdac->Instance->CR), (DAC_CR_EN1 << (Channel & 0x10UL)));
+
+ /* Set mode in MCR for calibration */
+ MODIFY_REG(hdac->Instance->MCR, (DAC_MCR_MODE1 << (Channel & 0x10UL)), 0U);
+
+ /* Set DAC Channel1 DHR register to the middle value */
+ tmp = (uint32_t)hdac->Instance;
+
+ if (Channel == DAC_CHANNEL_1)
+ {
+ tmp += DAC_DHR12R1_ALIGNMENT(DAC_ALIGN_12B_R);
+ }
+ else
+ {
+ tmp += DAC_DHR12R2_ALIGNMENT(DAC_ALIGN_12B_R);
+ }
+
+ *(__IO uint32_t *) tmp = 0x0800UL;
+
+ /* Enable the selected DAC channel calibration */
+ /* i.e. set DAC_CR_CENx bit */
+ SET_BIT((hdac->Instance->CR), (DAC_CR_CEN1 << (Channel & 0x10UL)));
+
+ /* Init trimming counter */
+ /* Medium value */
+ trimmingvalue = 16UL;
+ delta = 8UL;
+ while (delta != 0UL)
+ {
+ /* Set candidate trimming */
+ MODIFY_REG(hdac->Instance->CCR, (DAC_CCR_OTRIM1 << (Channel & 0x10UL)), (trimmingvalue << (Channel & 0x10UL)));
+
+ /* 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 & 0x10UL))) == (DAC_SR_CAL_FLAG1 << (Channel & 0x10UL)))
+ {
+ /* DAC_SR_CAL_FLAGx is HIGH try higher trimming */
+ trimmingvalue -= delta;
+ }
+ else
+ {
+ /* DAC_SR_CAL_FLAGx is LOW try lower trimming */
+ trimmingvalue += delta;
+ }
+ delta >>= 1UL;
+ }
+
+ /* 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 & 0x10UL)), (trimmingvalue << (Channel & 0x10UL)));
+
+ /* tOFFTRIMmax delay x ms as per datasheet (electrical characteristics */
+ /* i.e. minimum time needed between two calibration steps */
+ HAL_Delay(1U);
+
+ if ((hdac->Instance->SR & (DAC_SR_CAL_FLAG1 << (Channel & 0x10UL))) == 0UL)
+ {
+ /* Trimming is actually one value more */
+ trimmingvalue++;
+ /* Set right trimming */
+ MODIFY_REG(hdac->Instance->CCR, (DAC_CCR_OTRIM1 << (Channel & 0x10UL)), (trimmingvalue << (Channel & 0x10UL)));
+ }
+
+ /* Disable the selected DAC channel calibration */
+ /* i.e. clear DAC_CR_CENx bit */
+ CLEAR_BIT((hdac->Instance->CR), (DAC_CR_CEN1 << (Channel & 0x10UL)));
+
+ sConfig->DAC_TrimmingValue = trimmingvalue;
+ sConfig->DAC_UserTrimming = DAC_TRIMMING_USER;
+
+ /* Restore configuration */
+ MODIFY_REG(hdac->Instance->MCR, (DAC_MCR_MODE1 << (Channel & 0x10UL)), 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 & 0x10UL)), (NewTrimmingValue << (Channel & 0x10UL)));
+
+ /* 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)
+{
+ /* Check the parameter */
+ assert_param(IS_DAC_CHANNEL(Channel));
+
+ /* Retrieve trimming */
+ return ((hdac->Instance->CCR & (DAC_CCR_OTRIM1 << (Channel & 0x10UL))) >> (Channel & 0x10UL));
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup DACEx_Exported_Functions_Group3 Peripheral Control functions
+ * @brief Extended Peripheral Control functions
+ *
+@verbatim
+ ==============================================================================
+ ##### Peripheral Control functions #####
+ ==============================================================================
+ [..] This section provides functions allowing to:
+ (+) 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 = 0UL;
+
+ tmp |= hdac->Instance->DOR1;
+
+ tmp |= hdac->Instance->DOR2 << 16UL;
+
+ /* Returns the DAC channel data output register value */
+ return tmp;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/* 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;
+
+#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
+ hdac->ConvCpltCallbackCh2(hdac);
+#else
+ HAL_DACEx_ConvCpltCallbackCh2(hdac);
+#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
+
+ 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 */
+#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
+ hdac->ConvHalfCpltCallbackCh2(hdac);
+#else
+ HAL_DACEx_ConvHalfCpltCallbackCh2(hdac);
+#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
+}
+
+/**
+ * @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;
+
+#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
+ hdac->ErrorCallbackCh2(hdac);
+#else
+ HAL_DACEx_ErrorCallbackCh2(hdac);
+#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
+
+ hdac->State = HAL_DAC_STATE_READY;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* DAC1 || DAC2 */
+
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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