1063 lines
47 KiB
C
1063 lines
47 KiB
C
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/**
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******************************************************************************
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* @file stm32l4xx_ll_adc.c
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* @author MCD Application Team
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* @brief ADC LL module driver
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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#if defined(USE_FULL_LL_DRIVER)
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/* Includes ------------------------------------------------------------------*/
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#include "stm32l4xx_ll_adc.h"
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#include "stm32l4xx_ll_bus.h"
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#ifdef USE_FULL_ASSERT
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#include "stm32_assert.h"
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#else
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#define assert_param(expr) ((void)0U)
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#endif /* USE_FULL_ASSERT */
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/** @addtogroup STM32L4xx_LL_Driver
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* @{
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*/
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#if defined (ADC1) || defined (ADC2) || defined (ADC3)
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/** @addtogroup ADC_LL ADC
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* @{
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*/
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/* Private types -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private constants ---------------------------------------------------------*/
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/** @addtogroup ADC_LL_Private_Constants
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* @{
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*/
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/* Definitions of ADC hardware constraints delays */
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/* Note: Only ADC peripheral HW delays are defined in ADC LL driver driver, */
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/* not timeout values: */
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/* Timeout values for ADC operations are dependent to device clock */
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/* configuration (system clock versus ADC clock), */
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/* and therefore must be defined in user application. */
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/* Refer to @ref ADC_LL_EC_HW_DELAYS for description of ADC timeout */
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/* values definition. */
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/* Note: ADC timeout values are defined here in CPU cycles to be independent */
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/* of device clock setting. */
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/* In user application, ADC timeout values should be defined with */
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/* temporal values, in function of device clock settings. */
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/* Highest ratio CPU clock frequency vs ADC clock frequency: */
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/* - ADC clock from synchronous clock with AHB prescaler 512, */
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/* APB prescaler 16, ADC prescaler 4. */
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/* - ADC clock from asynchronous clock (PLLSAI) with prescaler 1, */
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/* with highest ratio CPU clock frequency vs HSI clock frequency: */
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/* CPU clock frequency max 72MHz, PLLSAI freq min 26MHz: ratio 4. */
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/* Unit: CPU cycles. */
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#define ADC_CLOCK_RATIO_VS_CPU_HIGHEST (512UL * 16UL * 4UL)
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#define ADC_TIMEOUT_DISABLE_CPU_CYCLES (ADC_CLOCK_RATIO_VS_CPU_HIGHEST * 1UL)
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#define ADC_TIMEOUT_STOP_CONVERSION_CPU_CYCLES (ADC_CLOCK_RATIO_VS_CPU_HIGHEST * 1UL)
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/**
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* @}
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*/
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/* Private macros ------------------------------------------------------------*/
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/** @addtogroup ADC_LL_Private_Macros
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* @{
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*/
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/* Check of parameters for configuration of ADC hierarchical scope: */
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/* common to several ADC instances. */
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#define IS_LL_ADC_COMMON_CLOCK(__CLOCK__) \
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(((__CLOCK__) == LL_ADC_CLOCK_SYNC_PCLK_DIV1) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_SYNC_PCLK_DIV2) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_SYNC_PCLK_DIV4) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV1) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV2) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV4) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV6) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV8) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV10) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV12) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV16) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV32) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV64) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV128) \
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|| ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_DIV256) \
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)
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/* Check of parameters for configuration of ADC hierarchical scope: */
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/* ADC instance. */
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#define IS_LL_ADC_RESOLUTION(__RESOLUTION__) \
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(((__RESOLUTION__) == LL_ADC_RESOLUTION_12B) \
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|| ((__RESOLUTION__) == LL_ADC_RESOLUTION_10B) \
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|| ((__RESOLUTION__) == LL_ADC_RESOLUTION_8B) \
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|| ((__RESOLUTION__) == LL_ADC_RESOLUTION_6B) \
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)
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#define IS_LL_ADC_DATA_ALIGN(__DATA_ALIGN__) \
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(((__DATA_ALIGN__) == LL_ADC_DATA_ALIGN_RIGHT) \
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|| ((__DATA_ALIGN__) == LL_ADC_DATA_ALIGN_LEFT) \
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)
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#define IS_LL_ADC_LOW_POWER(__LOW_POWER__) \
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(((__LOW_POWER__) == LL_ADC_LP_MODE_NONE) \
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|| ((__LOW_POWER__) == LL_ADC_LP_AUTOWAIT) \
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)
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/* Check of parameters for configuration of ADC hierarchical scope: */
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/* ADC group regular */
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#define IS_LL_ADC_REG_TRIG_SOURCE(__REG_TRIG_SOURCE__) \
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(((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_SOFTWARE) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM1_TRGO) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM1_TRGO2) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM1_CH1) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM1_CH2) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM1_CH3) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM2_TRGO) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM2_CH2) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM3_TRGO) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM3_CH4) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM4_TRGO) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM4_CH4) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM6_TRGO) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM8_TRGO) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM8_TRGO2) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM15_TRGO) \
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|| ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_EXTI_LINE11) \
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)
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#define IS_LL_ADC_REG_CONTINUOUS_MODE(__REG_CONTINUOUS_MODE__) \
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(((__REG_CONTINUOUS_MODE__) == LL_ADC_REG_CONV_SINGLE) \
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|| ((__REG_CONTINUOUS_MODE__) == LL_ADC_REG_CONV_CONTINUOUS) \
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)
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#define IS_LL_ADC_REG_DMA_TRANSFER(__REG_DMA_TRANSFER__) \
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(((__REG_DMA_TRANSFER__) == LL_ADC_REG_DMA_TRANSFER_NONE) \
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|| ((__REG_DMA_TRANSFER__) == LL_ADC_REG_DMA_TRANSFER_LIMITED) \
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|| ((__REG_DMA_TRANSFER__) == LL_ADC_REG_DMA_TRANSFER_UNLIMITED) \
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)
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#define IS_LL_ADC_REG_OVR_DATA_BEHAVIOR(__REG_OVR_DATA_BEHAVIOR__) \
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(((__REG_OVR_DATA_BEHAVIOR__) == LL_ADC_REG_OVR_DATA_PRESERVED) \
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|| ((__REG_OVR_DATA_BEHAVIOR__) == LL_ADC_REG_OVR_DATA_OVERWRITTEN) \
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)
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#define IS_LL_ADC_REG_SEQ_SCAN_LENGTH(__REG_SEQ_SCAN_LENGTH__) \
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(((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_DISABLE) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_2RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_3RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_4RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_5RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_6RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_7RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_8RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_9RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_10RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_11RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_12RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_13RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_14RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_15RANKS) \
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|| ((__REG_SEQ_SCAN_LENGTH__) == LL_ADC_REG_SEQ_SCAN_ENABLE_16RANKS) \
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)
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#define IS_LL_ADC_REG_SEQ_SCAN_DISCONT_MODE(__REG_SEQ_DISCONT_MODE__) \
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(((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_DISABLE) \
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|| ((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_1RANK) \
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|| ((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_2RANKS) \
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|| ((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_3RANKS) \
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|| ((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_4RANKS) \
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|| ((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_5RANKS) \
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|| ((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_6RANKS) \
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|| ((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_7RANKS) \
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|| ((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_8RANKS) \
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)
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/* Check of parameters for configuration of ADC hierarchical scope: */
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/* ADC group injected */
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#define IS_LL_ADC_INJ_TRIG_SOURCE(__INJ_TRIG_SOURCE__) \
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(((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_SOFTWARE) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM1_TRGO) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM1_TRGO2) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM1_CH4) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM2_TRGO) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM2_CH1) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM3_TRGO) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM3_CH1) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM3_CH3) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM3_CH4) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM4_TRGO) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM6_TRGO) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM8_CH4) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM8_TRGO) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM8_TRGO2) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_TIM15_TRGO) \
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|| ((__INJ_TRIG_SOURCE__) == LL_ADC_INJ_TRIG_EXT_EXTI_LINE15) \
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)
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#define IS_LL_ADC_INJ_TRIG_EXT_EDGE(__INJ_TRIG_EXT_EDGE__) \
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(((__INJ_TRIG_EXT_EDGE__) == LL_ADC_INJ_TRIG_EXT_RISING) \
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|| ((__INJ_TRIG_EXT_EDGE__) == LL_ADC_INJ_TRIG_EXT_FALLING) \
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|| ((__INJ_TRIG_EXT_EDGE__) == LL_ADC_INJ_TRIG_EXT_RISINGFALLING) \
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)
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#define IS_LL_ADC_INJ_TRIG_AUTO(__INJ_TRIG_AUTO__) \
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(((__INJ_TRIG_AUTO__) == LL_ADC_INJ_TRIG_INDEPENDENT) \
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|| ((__INJ_TRIG_AUTO__) == LL_ADC_INJ_TRIG_FROM_GRP_REGULAR) \
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)
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#define IS_LL_ADC_INJ_SEQ_SCAN_LENGTH(__INJ_SEQ_SCAN_LENGTH__) \
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(((__INJ_SEQ_SCAN_LENGTH__) == LL_ADC_INJ_SEQ_SCAN_DISABLE) \
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|| ((__INJ_SEQ_SCAN_LENGTH__) == LL_ADC_INJ_SEQ_SCAN_ENABLE_2RANKS) \
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|| ((__INJ_SEQ_SCAN_LENGTH__) == LL_ADC_INJ_SEQ_SCAN_ENABLE_3RANKS) \
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|| ((__INJ_SEQ_SCAN_LENGTH__) == LL_ADC_INJ_SEQ_SCAN_ENABLE_4RANKS) \
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)
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#define IS_LL_ADC_INJ_SEQ_SCAN_DISCONT_MODE(__INJ_SEQ_DISCONT_MODE__) \
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(((__INJ_SEQ_DISCONT_MODE__) == LL_ADC_INJ_SEQ_DISCONT_DISABLE) \
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|| ((__INJ_SEQ_DISCONT_MODE__) == LL_ADC_INJ_SEQ_DISCONT_1RANK) \
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)
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#if defined(ADC_MULTIMODE_SUPPORT)
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/* Check of parameters for configuration of ADC hierarchical scope: */
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/* multimode. */
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#define IS_LL_ADC_MULTI_MODE(__MULTI_MODE__) \
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(((__MULTI_MODE__) == LL_ADC_MULTI_INDEPENDENT) \
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|| ((__MULTI_MODE__) == LL_ADC_MULTI_DUAL_REG_SIMULT) \
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|| ((__MULTI_MODE__) == LL_ADC_MULTI_DUAL_REG_INTERL) \
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|| ((__MULTI_MODE__) == LL_ADC_MULTI_DUAL_INJ_SIMULT) \
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|| ((__MULTI_MODE__) == LL_ADC_MULTI_DUAL_INJ_ALTERN) \
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|| ((__MULTI_MODE__) == LL_ADC_MULTI_DUAL_REG_SIM_INJ_SIM) \
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|| ((__MULTI_MODE__) == LL_ADC_MULTI_DUAL_REG_SIM_INJ_ALT) \
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|| ((__MULTI_MODE__) == LL_ADC_MULTI_DUAL_REG_INT_INJ_SIM) \
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)
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#define IS_LL_ADC_MULTI_DMA_TRANSFER(__MULTI_DMA_TRANSFER__) \
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(((__MULTI_DMA_TRANSFER__) == LL_ADC_MULTI_REG_DMA_EACH_ADC) \
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|| ((__MULTI_DMA_TRANSFER__) == LL_ADC_MULTI_REG_DMA_LIMIT_RES12_10B) \
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|| ((__MULTI_DMA_TRANSFER__) == LL_ADC_MULTI_REG_DMA_LIMIT_RES8_6B) \
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|| ((__MULTI_DMA_TRANSFER__) == LL_ADC_MULTI_REG_DMA_UNLMT_RES12_10B) \
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|| ((__MULTI_DMA_TRANSFER__) == LL_ADC_MULTI_REG_DMA_UNLMT_RES8_6B) \
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)
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#define IS_LL_ADC_MULTI_TWOSMP_DELAY(__MULTI_TWOSMP_DELAY__) \
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(((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_1CYCLE) \
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|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_2CYCLES) \
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|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_3CYCLES) \
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|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_4CYCLES) \
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|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_5CYCLES) \
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|
|
|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_6CYCLES) \
|
||
|
|
|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_7CYCLES) \
|
||
|
|
|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_8CYCLES) \
|
||
|
|
|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_9CYCLES) \
|
||
|
|
|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_10CYCLES) \
|
||
|
|
|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_11CYCLES) \
|
||
|
|
|| ((__MULTI_TWOSMP_DELAY__) == LL_ADC_MULTI_TWOSMP_DELAY_12CYCLES) \
|
||
|
|
)
|
||
|
|
|
||
|
|
#define IS_LL_ADC_MULTI_MASTER_SLAVE(__MULTI_MASTER_SLAVE__) \
|
||
|
|
(((__MULTI_MASTER_SLAVE__) == LL_ADC_MULTI_MASTER) \
|
||
|
|
|| ((__MULTI_MASTER_SLAVE__) == LL_ADC_MULTI_SLAVE) \
|
||
|
|
|| ((__MULTI_MASTER_SLAVE__) == LL_ADC_MULTI_MASTER_SLAVE) \
|
||
|
|
)
|
||
|
|
|
||
|
|
#endif /* ADC_MULTIMODE_SUPPORT */
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
/* Private function prototypes -----------------------------------------------*/
|
||
|
|
|
||
|
|
/* Exported functions --------------------------------------------------------*/
|
||
|
|
/** @addtogroup ADC_LL_Exported_Functions
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/** @addtogroup ADC_LL_EF_Init
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief De-initialize registers of all ADC instances belonging to
|
||
|
|
* the same ADC common instance to their default reset values.
|
||
|
|
* @note This function is performing a hard reset, using high level
|
||
|
|
* clock source RCC ADC reset.
|
||
|
|
* Caution: On this STM32 series, if several ADC instances are available
|
||
|
|
* on the selected device, RCC ADC reset will reset
|
||
|
|
* all ADC instances belonging to the common ADC instance.
|
||
|
|
* To de-initialize only 1 ADC instance, use
|
||
|
|
* function @ref LL_ADC_DeInit().
|
||
|
|
* @param ADCxy_COMMON ADC common instance
|
||
|
|
* (can be set directly from CMSIS definition or by using helper macro @ref __LL_ADC_COMMON_INSTANCE() )
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: ADC common registers are de-initialized
|
||
|
|
* - ERROR: not applicable
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_ADC_CommonDeInit(const ADC_Common_TypeDef *ADCxy_COMMON)
|
||
|
|
{
|
||
|
|
/* Check the parameters */
|
||
|
|
assert_param(IS_ADC_COMMON_INSTANCE(ADCxy_COMMON));
|
||
|
|
|
||
|
|
/* Prevent unused argument compilation warning */
|
||
|
|
(void)(ADCxy_COMMON);
|
||
|
|
|
||
|
|
/* Force reset of ADC clock (core clock) */
|
||
|
|
LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_ADC);
|
||
|
|
|
||
|
|
/* Release reset of ADC clock (core clock) */
|
||
|
|
LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_ADC);
|
||
|
|
|
||
|
|
return SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Initialize some features of ADC common parameters
|
||
|
|
* (all ADC instances belonging to the same ADC common instance)
|
||
|
|
* and multimode (for devices with several ADC instances available).
|
||
|
|
* @note The setting of ADC common parameters is conditioned to
|
||
|
|
* ADC instances state:
|
||
|
|
* All ADC instances belonging to the same ADC common instance
|
||
|
|
* must be disabled.
|
||
|
|
* @param ADCxy_COMMON ADC common instance
|
||
|
|
* (can be set directly from CMSIS definition or by using helper macro @ref __LL_ADC_COMMON_INSTANCE() )
|
||
|
|
* @param pADC_CommonInitStruct Pointer to a @ref LL_ADC_CommonInitTypeDef structure
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: ADC common registers are initialized
|
||
|
|
* - ERROR: ADC common registers are not initialized
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_ADC_CommonInit(ADC_Common_TypeDef *ADCxy_COMMON, const LL_ADC_CommonInitTypeDef *pADC_CommonInitStruct)
|
||
|
|
{
|
||
|
|
ErrorStatus status = SUCCESS;
|
||
|
|
|
||
|
|
/* Check the parameters */
|
||
|
|
assert_param(IS_ADC_COMMON_INSTANCE(ADCxy_COMMON));
|
||
|
|
assert_param(IS_LL_ADC_COMMON_CLOCK(pADC_CommonInitStruct->CommonClock));
|
||
|
|
|
||
|
|
#if defined(ADC_MULTIMODE_SUPPORT)
|
||
|
|
assert_param(IS_LL_ADC_MULTI_MODE(pADC_CommonInitStruct->Multimode));
|
||
|
|
if (pADC_CommonInitStruct->Multimode != LL_ADC_MULTI_INDEPENDENT)
|
||
|
|
{
|
||
|
|
assert_param(IS_LL_ADC_MULTI_DMA_TRANSFER(pADC_CommonInitStruct->MultiDMATransfer));
|
||
|
|
assert_param(IS_LL_ADC_MULTI_TWOSMP_DELAY(pADC_CommonInitStruct->MultiTwoSamplingDelay));
|
||
|
|
}
|
||
|
|
#endif /* ADC_MULTIMODE_SUPPORT */
|
||
|
|
|
||
|
|
/* Note: Hardware constraint (refer to description of functions */
|
||
|
|
/* "LL_ADC_SetCommonXXX()" and "LL_ADC_SetMultiXXX()"): */
|
||
|
|
/* On this STM32 series, setting of these features is conditioned to */
|
||
|
|
/* ADC state: */
|
||
|
|
/* All ADC instances of the ADC common group must be disabled. */
|
||
|
|
if (__LL_ADC_IS_ENABLED_ALL_COMMON_INSTANCE(ADCxy_COMMON) == 0UL)
|
||
|
|
{
|
||
|
|
/* Configuration of ADC hierarchical scope: */
|
||
|
|
/* - common to several ADC */
|
||
|
|
/* (all ADC instances belonging to the same ADC common instance) */
|
||
|
|
/* - Set ADC clock (conversion clock) */
|
||
|
|
/* - multimode (if several ADC instances available on the */
|
||
|
|
/* selected device) */
|
||
|
|
/* - Set ADC multimode configuration */
|
||
|
|
/* - Set ADC multimode DMA transfer */
|
||
|
|
/* - Set ADC multimode: delay between 2 sampling phases */
|
||
|
|
#if defined(ADC_MULTIMODE_SUPPORT)
|
||
|
|
if (pADC_CommonInitStruct->Multimode != LL_ADC_MULTI_INDEPENDENT)
|
||
|
|
{
|
||
|
|
MODIFY_REG(ADCxy_COMMON->CCR,
|
||
|
|
ADC_CCR_CKMODE
|
||
|
|
| ADC_CCR_PRESC
|
||
|
|
| ADC_CCR_DUAL
|
||
|
|
| ADC_CCR_MDMA
|
||
|
|
| ADC_CCR_DELAY
|
||
|
|
,
|
||
|
|
pADC_CommonInitStruct->CommonClock
|
||
|
|
| pADC_CommonInitStruct->Multimode
|
||
|
|
| pADC_CommonInitStruct->MultiDMATransfer
|
||
|
|
| pADC_CommonInitStruct->MultiTwoSamplingDelay
|
||
|
|
);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
MODIFY_REG(ADCxy_COMMON->CCR,
|
||
|
|
ADC_CCR_CKMODE
|
||
|
|
| ADC_CCR_PRESC
|
||
|
|
| ADC_CCR_DUAL
|
||
|
|
| ADC_CCR_MDMA
|
||
|
|
| ADC_CCR_DELAY
|
||
|
|
,
|
||
|
|
pADC_CommonInitStruct->CommonClock
|
||
|
|
| LL_ADC_MULTI_INDEPENDENT
|
||
|
|
);
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
LL_ADC_SetCommonClock(ADCxy_COMMON, pADC_CommonInitStruct->CommonClock);
|
||
|
|
#endif /* ADC_MULTIMODE_SUPPORT */
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* Initialization error: One or several ADC instances belonging to */
|
||
|
|
/* the same ADC common instance are not disabled. */
|
||
|
|
status = ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set each @ref LL_ADC_CommonInitTypeDef field to default value.
|
||
|
|
* @param pADC_CommonInitStruct Pointer to a @ref LL_ADC_CommonInitTypeDef structure
|
||
|
|
* whose fields will be set to default values.
|
||
|
|
* @retval None
|
||
|
|
*/
|
||
|
|
void LL_ADC_CommonStructInit(LL_ADC_CommonInitTypeDef *pADC_CommonInitStruct)
|
||
|
|
{
|
||
|
|
/* Set pADC_CommonInitStruct fields to default values */
|
||
|
|
/* Set fields of ADC common */
|
||
|
|
/* (all ADC instances belonging to the same ADC common instance) */
|
||
|
|
pADC_CommonInitStruct->CommonClock = LL_ADC_CLOCK_SYNC_PCLK_DIV2;
|
||
|
|
|
||
|
|
#if defined(ADC_MULTIMODE_SUPPORT)
|
||
|
|
/* Set fields of ADC multimode */
|
||
|
|
pADC_CommonInitStruct->Multimode = LL_ADC_MULTI_INDEPENDENT;
|
||
|
|
pADC_CommonInitStruct->MultiDMATransfer = LL_ADC_MULTI_REG_DMA_EACH_ADC;
|
||
|
|
pADC_CommonInitStruct->MultiTwoSamplingDelay = LL_ADC_MULTI_TWOSMP_DELAY_1CYCLE;
|
||
|
|
#endif /* ADC_MULTIMODE_SUPPORT */
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief De-initialize registers of the selected ADC instance
|
||
|
|
* to their default reset values.
|
||
|
|
* @note To reset all ADC instances quickly (perform a hard reset),
|
||
|
|
* use function @ref LL_ADC_CommonDeInit().
|
||
|
|
* @note If this functions returns error status, it means that ADC instance
|
||
|
|
* is in an unknown state.
|
||
|
|
* In this case, perform a hard reset using high level
|
||
|
|
* clock source RCC ADC reset.
|
||
|
|
* Caution: On this STM32 series, if several ADC instances are available
|
||
|
|
* on the selected device, RCC ADC reset will reset
|
||
|
|
* all ADC instances belonging to the common ADC instance.
|
||
|
|
* Refer to function @ref LL_ADC_CommonDeInit().
|
||
|
|
* @param ADCx ADC instance
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: ADC registers are de-initialized
|
||
|
|
* - ERROR: ADC registers are not de-initialized
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_ADC_DeInit(ADC_TypeDef *ADCx)
|
||
|
|
{
|
||
|
|
ErrorStatus status = SUCCESS;
|
||
|
|
|
||
|
|
__IO uint32_t timeout_cpu_cycles = 0UL;
|
||
|
|
|
||
|
|
/* Check the parameters */
|
||
|
|
assert_param(IS_ADC_ALL_INSTANCE(ADCx));
|
||
|
|
|
||
|
|
/* Disable ADC instance if not already disabled. */
|
||
|
|
if (LL_ADC_IsEnabled(ADCx) == 1UL)
|
||
|
|
{
|
||
|
|
/* Set ADC group regular trigger source to SW start to ensure to not */
|
||
|
|
/* have an external trigger event occurring during the conversion stop */
|
||
|
|
/* ADC disable process. */
|
||
|
|
LL_ADC_REG_SetTriggerSource(ADCx, LL_ADC_REG_TRIG_SOFTWARE);
|
||
|
|
|
||
|
|
/* Stop potential ADC conversion on going on ADC group regular. */
|
||
|
|
if (LL_ADC_REG_IsConversionOngoing(ADCx) != 0UL)
|
||
|
|
{
|
||
|
|
if (LL_ADC_REG_IsStopConversionOngoing(ADCx) == 0UL)
|
||
|
|
{
|
||
|
|
LL_ADC_REG_StopConversion(ADCx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Set ADC group injected trigger source to SW start to ensure to not */
|
||
|
|
/* have an external trigger event occurring during the conversion stop */
|
||
|
|
/* ADC disable process. */
|
||
|
|
LL_ADC_INJ_SetTriggerSource(ADCx, LL_ADC_INJ_TRIG_SOFTWARE);
|
||
|
|
|
||
|
|
/* Stop potential ADC conversion on going on ADC group injected. */
|
||
|
|
if (LL_ADC_INJ_IsConversionOngoing(ADCx) != 0UL)
|
||
|
|
{
|
||
|
|
if (LL_ADC_INJ_IsStopConversionOngoing(ADCx) == 0UL)
|
||
|
|
{
|
||
|
|
LL_ADC_INJ_StopConversion(ADCx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Wait for ADC conversions are effectively stopped */
|
||
|
|
timeout_cpu_cycles = ADC_TIMEOUT_STOP_CONVERSION_CPU_CYCLES;
|
||
|
|
while ((LL_ADC_REG_IsStopConversionOngoing(ADCx)
|
||
|
|
| LL_ADC_INJ_IsStopConversionOngoing(ADCx)) == 1UL)
|
||
|
|
{
|
||
|
|
timeout_cpu_cycles--;
|
||
|
|
if (timeout_cpu_cycles == 0UL)
|
||
|
|
{
|
||
|
|
/* Time-out error */
|
||
|
|
status = ERROR;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Flush group injected contexts queue (register JSQR): */
|
||
|
|
/* Note: Bit JQM must be set to empty the contexts queue (otherwise */
|
||
|
|
/* contexts queue is maintained with the last active context). */
|
||
|
|
LL_ADC_INJ_SetQueueMode(ADCx, LL_ADC_INJ_QUEUE_2CONTEXTS_END_EMPTY);
|
||
|
|
|
||
|
|
/* Disable the ADC instance */
|
||
|
|
LL_ADC_Disable(ADCx);
|
||
|
|
|
||
|
|
/* Wait for ADC instance is effectively disabled */
|
||
|
|
timeout_cpu_cycles = ADC_TIMEOUT_DISABLE_CPU_CYCLES;
|
||
|
|
while (LL_ADC_IsDisableOngoing(ADCx) == 1UL)
|
||
|
|
{
|
||
|
|
timeout_cpu_cycles--;
|
||
|
|
if (timeout_cpu_cycles == 0UL)
|
||
|
|
{
|
||
|
|
/* Time-out error */
|
||
|
|
status = ERROR;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check whether ADC state is compliant with expected state */
|
||
|
|
if (READ_BIT(ADCx->CR,
|
||
|
|
(ADC_CR_JADSTP | ADC_CR_ADSTP | ADC_CR_JADSTART | ADC_CR_ADSTART
|
||
|
|
| ADC_CR_ADDIS | ADC_CR_ADEN)
|
||
|
|
)
|
||
|
|
== 0UL)
|
||
|
|
{
|
||
|
|
/* ========== Reset ADC registers ========== */
|
||
|
|
/* Reset register IER */
|
||
|
|
CLEAR_BIT(ADCx->IER,
|
||
|
|
(LL_ADC_IT_ADRDY
|
||
|
|
| LL_ADC_IT_EOC
|
||
|
|
| LL_ADC_IT_EOS
|
||
|
|
| LL_ADC_IT_OVR
|
||
|
|
| LL_ADC_IT_EOSMP
|
||
|
|
| LL_ADC_IT_JEOC
|
||
|
|
| LL_ADC_IT_JEOS
|
||
|
|
| LL_ADC_IT_JQOVF
|
||
|
|
| LL_ADC_IT_AWD1
|
||
|
|
| LL_ADC_IT_AWD2
|
||
|
|
| LL_ADC_IT_AWD3
|
||
|
|
)
|
||
|
|
);
|
||
|
|
|
||
|
|
/* Reset register ISR */
|
||
|
|
SET_BIT(ADCx->ISR,
|
||
|
|
(LL_ADC_FLAG_ADRDY
|
||
|
|
| LL_ADC_FLAG_EOC
|
||
|
|
| LL_ADC_FLAG_EOS
|
||
|
|
| LL_ADC_FLAG_OVR
|
||
|
|
| LL_ADC_FLAG_EOSMP
|
||
|
|
| LL_ADC_FLAG_JEOC
|
||
|
|
| LL_ADC_FLAG_JEOS
|
||
|
|
| LL_ADC_FLAG_JQOVF
|
||
|
|
| LL_ADC_FLAG_AWD1
|
||
|
|
| LL_ADC_FLAG_AWD2
|
||
|
|
| LL_ADC_FLAG_AWD3
|
||
|
|
)
|
||
|
|
);
|
||
|
|
|
||
|
|
/* Reset register CR */
|
||
|
|
/* - Bits ADC_CR_JADSTP, ADC_CR_ADSTP, ADC_CR_JADSTART, ADC_CR_ADSTART, */
|
||
|
|
/* ADC_CR_ADCAL, ADC_CR_ADDIS, ADC_CR_ADEN are in */
|
||
|
|
/* access mode "read-set": no direct reset applicable. */
|
||
|
|
/* - Reset Calibration mode to default setting (single ended). */
|
||
|
|
/* - Disable ADC internal voltage regulator. */
|
||
|
|
/* - Enable ADC deep power down. */
|
||
|
|
/* Note: ADC internal voltage regulator disable and ADC deep power */
|
||
|
|
/* down enable are conditioned to ADC state disabled: */
|
||
|
|
/* already done above. */
|
||
|
|
CLEAR_BIT(ADCx->CR, ADC_CR_ADVREGEN | ADC_CR_ADCALDIF);
|
||
|
|
SET_BIT(ADCx->CR, ADC_CR_DEEPPWD);
|
||
|
|
|
||
|
|
/* Reset register CFGR */
|
||
|
|
MODIFY_REG(ADCx->CFGR,
|
||
|
|
(ADC_CFGR_AWD1CH | ADC_CFGR_JAUTO | ADC_CFGR_JAWD1EN
|
||
|
|
| ADC_CFGR_AWD1EN | ADC_CFGR_AWD1SGL | ADC_CFGR_JQM
|
||
|
|
| ADC_CFGR_JDISCEN | ADC_CFGR_DISCNUM | ADC_CFGR_DISCEN
|
||
|
|
| ADC_CFGR_AUTDLY | ADC_CFGR_CONT | ADC_CFGR_OVRMOD
|
||
|
|
| ADC_CFGR_EXTEN | ADC_CFGR_EXTSEL | ADC_CFGR_ALIGN
|
||
|
|
| ADC_CFGR_RES | ADC_CFGR_DMACFG | ADC_CFGR_DMAEN),
|
||
|
|
ADC_CFGR_JQDIS
|
||
|
|
);
|
||
|
|
|
||
|
|
/* Reset register CFGR2 */
|
||
|
|
CLEAR_BIT(ADCx->CFGR2,
|
||
|
|
(ADC_CFGR2_ROVSM | ADC_CFGR2_TROVS | ADC_CFGR2_OVSS
|
||
|
|
| ADC_CFGR2_OVSR | ADC_CFGR2_JOVSE | ADC_CFGR2_ROVSE)
|
||
|
|
);
|
||
|
|
|
||
|
|
/* Reset register SMPR1 */
|
||
|
|
CLEAR_BIT(ADCx->SMPR1,
|
||
|
|
(ADC_SMPR1_SMP9 | ADC_SMPR1_SMP8 | ADC_SMPR1_SMP7
|
||
|
|
| ADC_SMPR1_SMP6 | ADC_SMPR1_SMP5 | ADC_SMPR1_SMP4
|
||
|
|
| ADC_SMPR1_SMP3 | ADC_SMPR1_SMP2 | ADC_SMPR1_SMP1)
|
||
|
|
);
|
||
|
|
|
||
|
|
/* Reset register SMPR2 */
|
||
|
|
CLEAR_BIT(ADCx->SMPR2,
|
||
|
|
(ADC_SMPR2_SMP18 | ADC_SMPR2_SMP17 | ADC_SMPR2_SMP16
|
||
|
|
| ADC_SMPR2_SMP15 | ADC_SMPR2_SMP14 | ADC_SMPR2_SMP13
|
||
|
|
| ADC_SMPR2_SMP12 | ADC_SMPR2_SMP11 | ADC_SMPR2_SMP10)
|
||
|
|
);
|
||
|
|
|
||
|
|
/* Reset register TR1 */
|
||
|
|
MODIFY_REG(ADCx->TR1, ADC_TR1_HT1 | ADC_TR1_LT1, ADC_TR1_HT1);
|
||
|
|
|
||
|
|
/* Reset register TR2 */
|
||
|
|
MODIFY_REG(ADCx->TR2, ADC_TR2_HT2 | ADC_TR2_LT2, ADC_TR2_HT2);
|
||
|
|
|
||
|
|
/* Reset register TR3 */
|
||
|
|
MODIFY_REG(ADCx->TR3, ADC_TR3_HT3 | ADC_TR3_LT3, ADC_TR3_HT3);
|
||
|
|
|
||
|
|
/* Reset register SQR1 */
|
||
|
|
CLEAR_BIT(ADCx->SQR1,
|
||
|
|
(ADC_SQR1_SQ4 | ADC_SQR1_SQ3 | ADC_SQR1_SQ2
|
||
|
|
| ADC_SQR1_SQ1 | ADC_SQR1_L)
|
||
|
|
);
|
||
|
|
|
||
|
|
/* Reset register SQR2 */
|
||
|
|
CLEAR_BIT(ADCx->SQR2,
|
||
|
|
(ADC_SQR2_SQ9 | ADC_SQR2_SQ8 | ADC_SQR2_SQ7
|
||
|
|
| ADC_SQR2_SQ6 | ADC_SQR2_SQ5)
|
||
|
|
);
|
||
|
|
|
||
|
|
/* Reset register SQR3 */
|
||
|
|
CLEAR_BIT(ADCx->SQR3,
|
||
|
|
(ADC_SQR3_SQ14 | ADC_SQR3_SQ13 | ADC_SQR3_SQ12
|
||
|
|
| ADC_SQR3_SQ11 | ADC_SQR3_SQ10)
|
||
|
|
);
|
||
|
|
|
||
|
|
/* Reset register SQR4 */
|
||
|
|
CLEAR_BIT(ADCx->SQR4, ADC_SQR4_SQ16 | ADC_SQR4_SQ15);
|
||
|
|
|
||
|
|
/* Reset register JSQR */
|
||
|
|
CLEAR_BIT(ADCx->JSQR,
|
||
|
|
(ADC_JSQR_JL
|
||
|
|
| ADC_JSQR_JEXTSEL | ADC_JSQR_JEXTEN
|
||
|
|
| ADC_JSQR_JSQ4 | ADC_JSQR_JSQ3
|
||
|
|
| ADC_JSQR_JSQ2 | ADC_JSQR_JSQ1)
|
||
|
|
);
|
||
|
|
|
||
|
|
/* Reset register DR */
|
||
|
|
/* Note: bits in access mode read only, no direct reset applicable */
|
||
|
|
|
||
|
|
/* Reset register OFR1 */
|
||
|
|
CLEAR_BIT(ADCx->OFR1, ADC_OFR1_OFFSET1_EN | ADC_OFR1_OFFSET1_CH | ADC_OFR1_OFFSET1);
|
||
|
|
/* Reset register OFR2 */
|
||
|
|
CLEAR_BIT(ADCx->OFR2, ADC_OFR2_OFFSET2_EN | ADC_OFR2_OFFSET2_CH | ADC_OFR2_OFFSET2);
|
||
|
|
/* Reset register OFR3 */
|
||
|
|
CLEAR_BIT(ADCx->OFR3, ADC_OFR3_OFFSET3_EN | ADC_OFR3_OFFSET3_CH | ADC_OFR3_OFFSET3);
|
||
|
|
/* Reset register OFR4 */
|
||
|
|
CLEAR_BIT(ADCx->OFR4, ADC_OFR4_OFFSET4_EN | ADC_OFR4_OFFSET4_CH | ADC_OFR4_OFFSET4);
|
||
|
|
|
||
|
|
/* Reset registers JDR1, JDR2, JDR3, JDR4 */
|
||
|
|
/* Note: bits in access mode read only, no direct reset applicable */
|
||
|
|
|
||
|
|
/* Reset register AWD2CR */
|
||
|
|
CLEAR_BIT(ADCx->AWD2CR, ADC_AWD2CR_AWD2CH);
|
||
|
|
|
||
|
|
/* Reset register AWD3CR */
|
||
|
|
CLEAR_BIT(ADCx->AWD3CR, ADC_AWD3CR_AWD3CH);
|
||
|
|
|
||
|
|
/* Reset register DIFSEL */
|
||
|
|
CLEAR_BIT(ADCx->DIFSEL, ADC_DIFSEL_DIFSEL);
|
||
|
|
|
||
|
|
/* Reset register CALFACT */
|
||
|
|
CLEAR_BIT(ADCx->CALFACT, ADC_CALFACT_CALFACT_D | ADC_CALFACT_CALFACT_S);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* ADC instance is in an unknown state */
|
||
|
|
/* Need to performing a hard reset of ADC instance, using high level */
|
||
|
|
/* clock source RCC ADC reset. */
|
||
|
|
/* Caution: On this STM32 series, if several ADC instances are available */
|
||
|
|
/* on the selected device, RCC ADC reset will reset */
|
||
|
|
/* all ADC instances belonging to the common ADC instance. */
|
||
|
|
/* Caution: On this STM32 series, if several ADC instances are available */
|
||
|
|
/* on the selected device, RCC ADC reset will reset */
|
||
|
|
/* all ADC instances belonging to the common ADC instance. */
|
||
|
|
status = ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Initialize some features of ADC instance.
|
||
|
|
* @note These parameters have an impact on ADC scope: ADC instance.
|
||
|
|
* Affects both group regular and group injected (availability
|
||
|
|
* of ADC group injected depends on STM32 series).
|
||
|
|
* Refer to corresponding unitary functions into
|
||
|
|
* @ref ADC_LL_EF_Configuration_ADC_Instance .
|
||
|
|
* @note The setting of these parameters by function @ref LL_ADC_Init()
|
||
|
|
* is conditioned to ADC state:
|
||
|
|
* ADC instance must be disabled.
|
||
|
|
* This condition is applied to all ADC features, for efficiency
|
||
|
|
* and compatibility over all STM32 series. However, the different
|
||
|
|
* features can be set under different ADC state conditions
|
||
|
|
* (setting possible with ADC enabled without conversion on going,
|
||
|
|
* ADC enabled with conversion on going, ...)
|
||
|
|
* Each feature can be updated afterwards with a unitary function
|
||
|
|
* and potentially with ADC in a different state than disabled,
|
||
|
|
* refer to description of each function for setting
|
||
|
|
* conditioned to ADC state.
|
||
|
|
* @note After using this function, some other features must be configured
|
||
|
|
* using LL unitary functions.
|
||
|
|
* The minimum configuration remaining to be done is:
|
||
|
|
* - Set ADC group regular or group injected sequencer:
|
||
|
|
* map channel on the selected sequencer rank.
|
||
|
|
* Refer to function @ref LL_ADC_REG_SetSequencerRanks().
|
||
|
|
* - Set ADC channel sampling time
|
||
|
|
* Refer to function LL_ADC_SetChannelSamplingTime();
|
||
|
|
* @param ADCx ADC instance
|
||
|
|
* @param pADC_InitStruct Pointer to a @ref LL_ADC_REG_InitTypeDef structure
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: ADC registers are initialized
|
||
|
|
* - ERROR: ADC registers are not initialized
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_ADC_Init(ADC_TypeDef *ADCx, const LL_ADC_InitTypeDef *pADC_InitStruct)
|
||
|
|
{
|
||
|
|
ErrorStatus status = SUCCESS;
|
||
|
|
|
||
|
|
/* Check the parameters */
|
||
|
|
assert_param(IS_ADC_ALL_INSTANCE(ADCx));
|
||
|
|
|
||
|
|
assert_param(IS_LL_ADC_RESOLUTION(pADC_InitStruct->Resolution));
|
||
|
|
assert_param(IS_LL_ADC_DATA_ALIGN(pADC_InitStruct->DataAlignment));
|
||
|
|
assert_param(IS_LL_ADC_LOW_POWER(pADC_InitStruct->LowPowerMode));
|
||
|
|
|
||
|
|
/* Note: Hardware constraint (refer to description of this function): */
|
||
|
|
/* ADC instance must be disabled. */
|
||
|
|
if (LL_ADC_IsEnabled(ADCx) == 0UL)
|
||
|
|
{
|
||
|
|
/* Configuration of ADC hierarchical scope: */
|
||
|
|
/* - ADC instance */
|
||
|
|
/* - Set ADC data resolution */
|
||
|
|
/* - Set ADC conversion data alignment */
|
||
|
|
/* - Set ADC low power mode */
|
||
|
|
MODIFY_REG(ADCx->CFGR,
|
||
|
|
ADC_CFGR_RES
|
||
|
|
| ADC_CFGR_ALIGN
|
||
|
|
| ADC_CFGR_AUTDLY
|
||
|
|
,
|
||
|
|
pADC_InitStruct->Resolution
|
||
|
|
| pADC_InitStruct->DataAlignment
|
||
|
|
| pADC_InitStruct->LowPowerMode
|
||
|
|
);
|
||
|
|
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* Initialization error: ADC instance is not disabled. */
|
||
|
|
status = ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set each @ref LL_ADC_InitTypeDef field to default value.
|
||
|
|
* @param pADC_InitStruct Pointer to a @ref LL_ADC_InitTypeDef structure
|
||
|
|
* whose fields will be set to default values.
|
||
|
|
* @retval None
|
||
|
|
*/
|
||
|
|
void LL_ADC_StructInit(LL_ADC_InitTypeDef *pADC_InitStruct)
|
||
|
|
{
|
||
|
|
/* Set pADC_InitStruct fields to default values */
|
||
|
|
/* Set fields of ADC instance */
|
||
|
|
pADC_InitStruct->Resolution = LL_ADC_RESOLUTION_12B;
|
||
|
|
pADC_InitStruct->DataAlignment = LL_ADC_DATA_ALIGN_RIGHT;
|
||
|
|
pADC_InitStruct->LowPowerMode = LL_ADC_LP_MODE_NONE;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Initialize some features of ADC group regular.
|
||
|
|
* @note These parameters have an impact on ADC scope: ADC group regular.
|
||
|
|
* Refer to corresponding unitary functions into
|
||
|
|
* @ref ADC_LL_EF_Configuration_ADC_Group_Regular
|
||
|
|
* (functions with prefix "REG").
|
||
|
|
* @note The setting of these parameters by function @ref LL_ADC_Init()
|
||
|
|
* is conditioned to ADC state:
|
||
|
|
* ADC instance must be disabled.
|
||
|
|
* This condition is applied to all ADC features, for efficiency
|
||
|
|
* and compatibility over all STM32 series. However, the different
|
||
|
|
* features can be set under different ADC state conditions
|
||
|
|
* (setting possible with ADC enabled without conversion on going,
|
||
|
|
* ADC enabled with conversion on going, ...)
|
||
|
|
* Each feature can be updated afterwards with a unitary function
|
||
|
|
* and potentially with ADC in a different state than disabled,
|
||
|
|
* refer to description of each function for setting
|
||
|
|
* conditioned to ADC state.
|
||
|
|
* @note After using this function, other features must be configured
|
||
|
|
* using LL unitary functions.
|
||
|
|
* The minimum configuration remaining to be done is:
|
||
|
|
* - Set ADC group regular or group injected sequencer:
|
||
|
|
* map channel on the selected sequencer rank.
|
||
|
|
* Refer to function @ref LL_ADC_REG_SetSequencerRanks().
|
||
|
|
* - Set ADC channel sampling time
|
||
|
|
* Refer to function LL_ADC_SetChannelSamplingTime();
|
||
|
|
* @param ADCx ADC instance
|
||
|
|
* @param pADC_RegInitStruct Pointer to a @ref LL_ADC_REG_InitTypeDef structure
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: ADC registers are initialized
|
||
|
|
* - ERROR: ADC registers are not initialized
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_ADC_REG_Init(ADC_TypeDef *ADCx, const LL_ADC_REG_InitTypeDef *pADC_RegInitStruct)
|
||
|
|
{
|
||
|
|
ErrorStatus status = SUCCESS;
|
||
|
|
|
||
|
|
/* Check the parameters */
|
||
|
|
assert_param(IS_ADC_ALL_INSTANCE(ADCx));
|
||
|
|
assert_param(IS_LL_ADC_REG_TRIG_SOURCE(pADC_RegInitStruct->TriggerSource));
|
||
|
|
assert_param(IS_LL_ADC_REG_SEQ_SCAN_LENGTH(pADC_RegInitStruct->SequencerLength));
|
||
|
|
if (pADC_RegInitStruct->SequencerLength != LL_ADC_REG_SEQ_SCAN_DISABLE)
|
||
|
|
{
|
||
|
|
assert_param(IS_LL_ADC_REG_SEQ_SCAN_DISCONT_MODE(pADC_RegInitStruct->SequencerDiscont));
|
||
|
|
|
||
|
|
/* ADC group regular continuous mode and discontinuous mode */
|
||
|
|
/* can not be enabled simultenaeously */
|
||
|
|
assert_param((pADC_RegInitStruct->ContinuousMode == LL_ADC_REG_CONV_SINGLE)
|
||
|
|
|| (pADC_RegInitStruct->SequencerDiscont == LL_ADC_REG_SEQ_DISCONT_DISABLE));
|
||
|
|
}
|
||
|
|
assert_param(IS_LL_ADC_REG_CONTINUOUS_MODE(pADC_RegInitStruct->ContinuousMode));
|
||
|
|
assert_param(IS_LL_ADC_REG_DMA_TRANSFER(pADC_RegInitStruct->DMATransfer));
|
||
|
|
assert_param(IS_LL_ADC_REG_OVR_DATA_BEHAVIOR(pADC_RegInitStruct->Overrun));
|
||
|
|
|
||
|
|
/* Note: Hardware constraint (refer to description of this function): */
|
||
|
|
/* ADC instance must be disabled. */
|
||
|
|
if (LL_ADC_IsEnabled(ADCx) == 0UL)
|
||
|
|
{
|
||
|
|
/* Configuration of ADC hierarchical scope: */
|
||
|
|
/* - ADC group regular */
|
||
|
|
/* - Set ADC group regular trigger source */
|
||
|
|
/* - Set ADC group regular sequencer length */
|
||
|
|
/* - Set ADC group regular sequencer discontinuous mode */
|
||
|
|
/* - Set ADC group regular continuous mode */
|
||
|
|
/* - Set ADC group regular conversion data transfer: no transfer or */
|
||
|
|
/* transfer by DMA, and DMA requests mode */
|
||
|
|
/* - Set ADC group regular overrun behavior */
|
||
|
|
/* Note: On this STM32 series, ADC trigger edge is set to value 0x0 by */
|
||
|
|
/* setting of trigger source to SW start. */
|
||
|
|
if (pADC_RegInitStruct->SequencerLength != LL_ADC_REG_SEQ_SCAN_DISABLE)
|
||
|
|
{
|
||
|
|
MODIFY_REG(ADCx->CFGR,
|
||
|
|
ADC_CFGR_EXTSEL
|
||
|
|
| ADC_CFGR_EXTEN
|
||
|
|
| ADC_CFGR_DISCEN
|
||
|
|
| ADC_CFGR_DISCNUM
|
||
|
|
| ADC_CFGR_CONT
|
||
|
|
| ADC_CFGR_DMAEN
|
||
|
|
| ADC_CFGR_DMACFG
|
||
|
|
| ADC_CFGR_OVRMOD
|
||
|
|
,
|
||
|
|
pADC_RegInitStruct->TriggerSource
|
||
|
|
| pADC_RegInitStruct->SequencerDiscont
|
||
|
|
| pADC_RegInitStruct->ContinuousMode
|
||
|
|
| pADC_RegInitStruct->DMATransfer
|
||
|
|
| pADC_RegInitStruct->Overrun
|
||
|
|
);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
MODIFY_REG(ADCx->CFGR,
|
||
|
|
ADC_CFGR_EXTSEL
|
||
|
|
| ADC_CFGR_EXTEN
|
||
|
|
| ADC_CFGR_DISCEN
|
||
|
|
| ADC_CFGR_DISCNUM
|
||
|
|
| ADC_CFGR_CONT
|
||
|
|
| ADC_CFGR_DMAEN
|
||
|
|
| ADC_CFGR_DMACFG
|
||
|
|
| ADC_CFGR_OVRMOD
|
||
|
|
,
|
||
|
|
pADC_RegInitStruct->TriggerSource
|
||
|
|
| LL_ADC_REG_SEQ_DISCONT_DISABLE
|
||
|
|
| pADC_RegInitStruct->ContinuousMode
|
||
|
|
| pADC_RegInitStruct->DMATransfer
|
||
|
|
| pADC_RegInitStruct->Overrun
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Set ADC group regular sequencer length and scan direction */
|
||
|
|
LL_ADC_REG_SetSequencerLength(ADCx, pADC_RegInitStruct->SequencerLength);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* Initialization error: ADC instance is not disabled. */
|
||
|
|
status = ERROR;
|
||
|
|
}
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set each @ref LL_ADC_REG_InitTypeDef field to default value.
|
||
|
|
* @param pADC_RegInitStruct Pointer to a @ref LL_ADC_REG_InitTypeDef structure
|
||
|
|
* whose fields will be set to default values.
|
||
|
|
* @retval None
|
||
|
|
*/
|
||
|
|
void LL_ADC_REG_StructInit(LL_ADC_REG_InitTypeDef *pADC_RegInitStruct)
|
||
|
|
{
|
||
|
|
/* Set pADC_RegInitStruct fields to default values */
|
||
|
|
/* Set fields of ADC group regular */
|
||
|
|
/* Note: On this STM32 series, ADC trigger edge is set to value 0x0 by */
|
||
|
|
/* setting of trigger source to SW start. */
|
||
|
|
pADC_RegInitStruct->TriggerSource = LL_ADC_REG_TRIG_SOFTWARE;
|
||
|
|
pADC_RegInitStruct->SequencerLength = LL_ADC_REG_SEQ_SCAN_DISABLE;
|
||
|
|
pADC_RegInitStruct->SequencerDiscont = LL_ADC_REG_SEQ_DISCONT_DISABLE;
|
||
|
|
pADC_RegInitStruct->ContinuousMode = LL_ADC_REG_CONV_SINGLE;
|
||
|
|
pADC_RegInitStruct->DMATransfer = LL_ADC_REG_DMA_TRANSFER_NONE;
|
||
|
|
pADC_RegInitStruct->Overrun = LL_ADC_REG_OVR_DATA_OVERWRITTEN;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Initialize some features of ADC group injected.
|
||
|
|
* @note These parameters have an impact on ADC scope: ADC group injected.
|
||
|
|
* Refer to corresponding unitary functions into
|
||
|
|
* @ref ADC_LL_EF_Configuration_ADC_Group_Regular
|
||
|
|
* (functions with prefix "INJ").
|
||
|
|
* @note The setting of these parameters by function @ref LL_ADC_Init()
|
||
|
|
* is conditioned to ADC state:
|
||
|
|
* ADC instance must be disabled.
|
||
|
|
* This condition is applied to all ADC features, for efficiency
|
||
|
|
* and compatibility over all STM32 series. However, the different
|
||
|
|
* features can be set under different ADC state conditions
|
||
|
|
* (setting possible with ADC enabled without conversion on going,
|
||
|
|
* ADC enabled with conversion on going, ...)
|
||
|
|
* Each feature can be updated afterwards with a unitary function
|
||
|
|
* and potentially with ADC in a different state than disabled,
|
||
|
|
* refer to description of each function for setting
|
||
|
|
* conditioned to ADC state.
|
||
|
|
* @note After using this function, other features must be configured
|
||
|
|
* using LL unitary functions.
|
||
|
|
* The minimum configuration remaining to be done is:
|
||
|
|
* - Set ADC group injected sequencer:
|
||
|
|
* map channel on the selected sequencer rank.
|
||
|
|
* Refer to function @ref LL_ADC_INJ_SetSequencerRanks().
|
||
|
|
* - Set ADC channel sampling time
|
||
|
|
* Refer to function LL_ADC_SetChannelSamplingTime();
|
||
|
|
* @note Caution if feature ADC group injected contexts queue is enabled
|
||
|
|
* (refer to with function @ref LL_ADC_INJ_SetQueueMode() ):
|
||
|
|
* using successively several times this function will appear as
|
||
|
|
* having no effect.
|
||
|
|
* To set several features of ADC group injected, use
|
||
|
|
* function @ref LL_ADC_INJ_ConfigQueueContext().
|
||
|
|
* @param ADCx ADC instance
|
||
|
|
* @param pADC_InjInitStruct Pointer to a @ref LL_ADC_INJ_InitTypeDef structure
|
||
|
|
* @retval An ErrorStatus enumeration value:
|
||
|
|
* - SUCCESS: ADC registers are initialized
|
||
|
|
* - ERROR: ADC registers are not initialized
|
||
|
|
*/
|
||
|
|
ErrorStatus LL_ADC_INJ_Init(ADC_TypeDef *ADCx, const LL_ADC_INJ_InitTypeDef *pADC_InjInitStruct)
|
||
|
|
{
|
||
|
|
ErrorStatus status = SUCCESS;
|
||
|
|
|
||
|
|
/* Check the parameters */
|
||
|
|
assert_param(IS_ADC_ALL_INSTANCE(ADCx));
|
||
|
|
assert_param(IS_LL_ADC_INJ_TRIG_SOURCE(pADC_InjInitStruct->TriggerSource));
|
||
|
|
assert_param(IS_LL_ADC_INJ_SEQ_SCAN_LENGTH(pADC_InjInitStruct->SequencerLength));
|
||
|
|
if (pADC_InjInitStruct->SequencerLength != LL_ADC_INJ_SEQ_SCAN_DISABLE)
|
||
|
|
{
|
||
|
|
assert_param(IS_LL_ADC_INJ_SEQ_SCAN_DISCONT_MODE(pADC_InjInitStruct->SequencerDiscont));
|
||
|
|
}
|
||
|
|
assert_param(IS_LL_ADC_INJ_TRIG_AUTO(pADC_InjInitStruct->TrigAuto));
|
||
|
|
|
||
|
|
/* Note: Hardware constraint (refer to description of this function): */
|
||
|
|
/* ADC instance must be disabled. */
|
||
|
|
if (LL_ADC_IsEnabled(ADCx) == 0UL)
|
||
|
|
{
|
||
|
|
/* Configuration of ADC hierarchical scope: */
|
||
|
|
/* - ADC group injected */
|
||
|
|
/* - Set ADC group injected trigger source */
|
||
|
|
/* - Set ADC group injected sequencer length */
|
||
|
|
/* - Set ADC group injected sequencer discontinuous mode */
|
||
|
|
/* - Set ADC group injected conversion trigger: independent or */
|
||
|
|
/* from ADC group regular */
|
||
|
|
/* Note: On this STM32 series, ADC trigger edge is set to value 0x0 by */
|
||
|
|
/* setting of trigger source to SW start. */
|
||
|
|
if (pADC_InjInitStruct->SequencerLength != LL_ADC_REG_SEQ_SCAN_DISABLE)
|
||
|
|
{
|
||
|
|
MODIFY_REG(ADCx->CFGR,
|
||
|
|
ADC_CFGR_JDISCEN
|
||
|
|
| ADC_CFGR_JAUTO
|
||
|
|
,
|
||
|
|
pADC_InjInitStruct->SequencerDiscont
|
||
|
|
| pADC_InjInitStruct->TrigAuto
|
||
|
|
);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
MODIFY_REG(ADCx->CFGR,
|
||
|
|
ADC_CFGR_JDISCEN
|
||
|
|
| ADC_CFGR_JAUTO
|
||
|
|
,
|
||
|
|
LL_ADC_REG_SEQ_DISCONT_DISABLE
|
||
|
|
| pADC_InjInitStruct->TrigAuto
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
MODIFY_REG(ADCx->JSQR,
|
||
|
|
ADC_JSQR_JEXTSEL
|
||
|
|
| ADC_JSQR_JEXTEN
|
||
|
|
| ADC_JSQR_JL
|
||
|
|
,
|
||
|
|
pADC_InjInitStruct->TriggerSource
|
||
|
|
| pADC_InjInitStruct->SequencerLength
|
||
|
|
);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* Initialization error: ADC instance is not disabled. */
|
||
|
|
status = ERROR;
|
||
|
|
}
|
||
|
|
return status;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief Set each @ref LL_ADC_INJ_InitTypeDef field to default value.
|
||
|
|
* @param pADC_InjInitStruct Pointer to a @ref LL_ADC_INJ_InitTypeDef structure
|
||
|
|
* whose fields will be set to default values.
|
||
|
|
* @retval None
|
||
|
|
*/
|
||
|
|
void LL_ADC_INJ_StructInit(LL_ADC_INJ_InitTypeDef *pADC_InjInitStruct)
|
||
|
|
{
|
||
|
|
/* Set pADC_InjInitStruct fields to default values */
|
||
|
|
/* Set fields of ADC group injected */
|
||
|
|
pADC_InjInitStruct->TriggerSource = LL_ADC_INJ_TRIG_SOFTWARE;
|
||
|
|
pADC_InjInitStruct->SequencerLength = LL_ADC_INJ_SEQ_SCAN_DISABLE;
|
||
|
|
pADC_InjInitStruct->SequencerDiscont = LL_ADC_INJ_SEQ_DISCONT_DISABLE;
|
||
|
|
pADC_InjInitStruct->TrigAuto = LL_ADC_INJ_TRIG_INDEPENDENT;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
#endif /* ADC1 || ADC2 || ADC3 */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
#endif /* USE_FULL_LL_DRIVER */
|