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Diffstat (limited to 'Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_hal_dac_ex.c')
| -rw-r--r-- | Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_hal_dac_ex.c | 426 |
1 files changed, 426 insertions, 0 deletions
diff --git a/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_hal_dac_ex.c b/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_hal_dac_ex.c new file mode 100644 index 0000000..b841123 --- /dev/null +++ b/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_hal_dac_ex.c @@ -0,0 +1,426 @@ +/** + ****************************************************************************** + * @file stm32u0xx_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. + * + * + ****************************************************************************** + * @attention + * + * Copyright (c) 2023 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + @verbatim + ============================================================================== + ##### How to use this driver ##### + ============================================================================== + [..] + *** 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 + ****************************************************************************** + */ + + +/* Includes ------------------------------------------------------------------*/ +#include "stm32u0xx_hal.h" + +/** @addtogroup STM32U0xx_HAL_Driver + * @{ + */ + +#ifdef HAL_DAC_MODULE_ENABLED + +#if defined(DAC1) + +/** @defgroup DACEx DACEx + * @brief DAC Extended HAL module driver + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ + +/* Delay for DAC minimum trimming time. */ +/* Note: minimum time needed between two calibration steps */ +/* The delay below is specified under conditions: */ +/* - DAC channel output buffer enabled */ +/* Literal set to maximum value (refer to device datasheet, */ +/* electrical characteristics, parameter "tTRIM"). */ +/* Unit: us */ +#define DAC_DELAY_TRIM_US (50UL) /*!< Delay for DAC minimum trimming time */ + +/* 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: + * @arg DAC_CHANNEL_1: DAC Channel1 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 DAC peripheral handle */ + if (hdac == NULL) + { + return HAL_ERROR; + } + + /* 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 + * @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 DAC peripheral handle */ + if (hdac == NULL) + { + return HAL_ERROR; + } + + /* 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 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 + * @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; + __IO uint32_t wait_loop_index; + + /* 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) || (sConfig == 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); + } + + *(__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))); + + /* Wait minimum time needed between two calibration steps (OTRIM) */ + /* Wait loop initialization and execution */ + /* Note: Variable divided by 2 to compensate partially CPU processing cycles, scaling in us split to not exceed */ + /* 32 bits register capacity and handle low frequency. */ + wait_loop_index = ((DAC_DELAY_TRIM_US / 10UL) * ((SystemCoreClock / (100000UL * 2UL)) + 1UL)); + while (wait_loop_index != 0UL) + { + wait_loop_index--; + } + + 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))); + + /* Wait minimum time needed between two calibration steps (OTRIM) */ + /* Wait loop initialization and execution */ + /* Note: Variable divided by 2 to compensate partially CPU processing cycles, scaling in us split to not exceed */ + /* 32 bits register capacity and handle low frequency. */ + wait_loop_index = ((DAC_DELAY_TRIM_US / 10UL) * ((SystemCoreClock / (100000UL * 2UL)) + 1UL)); + while (wait_loop_index != 0UL) + { + wait_loop_index--; + } + + 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 + * @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 and channel configuration struct allocation */ + if ((hdac == NULL) || (sConfig == 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 + * @retval Trimming value : range: 0->31 + * + */ +uint32_t HAL_DACEx_GetTrimOffset(const 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)); +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* DAC1 */ + +#endif /* HAL_DAC_MODULE_ENABLED */ + +/** + * @} + */ |