+++ /dev/null
-/**
- ******************************************************************************
- * @file stm32f0xx_hal_adc.c
- * @author MCD Application Team
- * @version V1.2.0
- * @date 11-December-2014
- * @brief This file provides firmware functions to manage the following
- * functionalities of the Analog to Digital Convertor (ADC)
- * peripheral:
- * + Initialization and de-initialization functions
- * ++ Initialization and Configuration of ADC
- * + Operation functions
- * ++ Start, stop, get result of conversions of regular group,
- * using 3 possible modes: polling, interruption or DMA.
- * + Control functions
- * ++ Analog Watchdog configuration
- * ++ Channels configuration on regular group
- * + State functions
- * ++ ADC state machine management
- * ++ Interrupts and flags management
- *
- @verbatim
- ==============================================================================
- ##### ADC specific features #####
- ==============================================================================
- [..]
- (#) 12-bit, 10-bit, 8-bit or 6-bit configurable resolution
-
- (#) Interrupt generation at the end of regular conversion and in case of
- analog watchdog or overrun events.
-
- (#) Single and continuous conversion modes.
-
- (#) Scan mode for automatic conversion of channel 0 to channel 'n'.
-
- (#) Data alignment with in-built data coherency.
-
- (#) Programmable sampling time.
-
- (#) ADC conversion group Regular.
-
- (#) External trigger (timer or EXTI) with configurable polarity.
-
- (#) DMA request generation for transfer of conversions data of regular group.
-
- (#) ADC calibration
-
- (#) ADC supply requirements: 2.4 V to 3.6 V at full speed and down to 1.8 V at
- slower speed.
-
- (#) ADC input range: from Vref minus (connected to Vssa) to Vref plus (connected to
- Vdda or to an external voltage reference).
-
-
- ##### How to use this driver #####
- ==============================================================================
- [..]
-
- (#) Enable the ADC interface
- (++) As prerequisite, into HAL_ADC_MspInit(), ADC clock must be configured
- at RCC top level: clock source and clock prescaler.
- (++)Two possible clock sources: synchronous clock derived from APB clock
- or asynchronous clock derived from ADC dedicated HSI RC oscillator
- 14MHz.
- (++)Example:
- __ADC1_CLK_ENABLE(); (mandatory)
-
- HI14 enable or let under control of ADC: (optional)
-
- RCC_OscInitTypeDef RCC_OscInitStructure;
- RCC_OscInitStructure.OscillatorType = RCC_OSCILLATORTYPE_HSI14;
- RCC_OscInitStructure.HSI14CalibrationValue = RCC_HSI14CALIBRATION_DEFAULT;
- RCC_OscInitStructure.HSI14State = RCC_HSI14_ADC_CONTROL;
- RCC_OscInitStructure.PLL... (optional if used for system clock)
- HAL_RCC_OscConfig(&RCC_OscInitStructure);
-
- Parameter "HSI14State" must be set either:
- - to "...HSI14State = RCC_HSI14_ADC_CONTROL" to let the ADC control
- the HSI14 oscillator enable/disable (if not used to supply the main
- system clock): feature used if ADC mode LowPowerAutoPowerOff is
- enabled.
- - to "...HSI14State = RCC_HSI14_ON" to maintain the HSI14 oscillator
- always enabled: can be used to supply the main system clock.
-
- (#) ADC pins configuration
- (++) Enable the clock for the ADC GPIOs using the following function:
- __GPIOx_CLK_ENABLE();
- (++) Configure these ADC pins in analog mode using HAL_GPIO_Init();
-
- (#) Configure the ADC parameters (conversion resolution, data alignment,
- continuous mode, ...) using the HAL_ADC_Init() function.
-
- (#) Activate the ADC peripheral using one of the start functions:
- HAL_ADC_Start(), HAL_ADC_Start_IT(), HAL_ADC_Start_DMA().
-
- *** Channels configuration to regular group ***
- ================================================
- [..]
- (+) To configure the ADC regular group features, use
- HAL_ADC_Init() and HAL_ADC_ConfigChannel() functions.
- (+) To activate the continuous mode, use the HAL_ADC_Init() function.
- (+) To read the ADC converted values, use the HAL_ADC_GetValue() function.
-
- *** DMA for regular configuration ***
- =============================================================
- [..]
- (+) To enable the DMA mode for regular group, use the
- HAL_ADC_Start_DMA() function.
- (+) To enable the generation of DMA requests continuously at the end of
- the last DMA transfer, use the HAL_ADC_Init() function.
-
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f0xx_hal.h"
-
-/** @addtogroup STM32F0xx_HAL_Driver
- * @{
- */
-
-/** @defgroup ADC ADC HAL module driver
- * @brief ADC HAL module driver
- * @{
- */
-
-#ifdef HAL_ADC_MODULE_ENABLED
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/** @defgroup ADC_Private_Constants ADC Private Constants
- * @{
- */
-
- /* Fixed timeout values for ADC calibration, enable settling time, disable */
- /* settling time. */
- /* Values defined to be higher than worst cases: low clock frequency, */
- /* maximum prescaler. */
- /* Ex of profile low frequency : Clock source at 0.1 MHz, ADC clock */
- /* prescaler 4, sampling time 7.5 ADC clock cycles, resolution 12 bits. */
- /* Unit: ms */
- #define ADC_ENABLE_TIMEOUT ((uint32_t) 2)
- #define ADC_DISABLE_TIMEOUT ((uint32_t) 2)
- #define ADC_STOP_CONVERSION_TIMEOUT ((uint32_t) 2)
-
- /* Delay for temperature sensor stabilization time. */
- /* Maximum delay is 10us (refer to device datasheet, parameter tSTART). */
- /* Delay in CPU cycles, fixed to worst case: maximum CPU frequency 48MHz to */
- /* have the minimum number of CPU cycles to fulfill this delay. */
- #define ADC_TEMPSENSOR_DELAY_CPU_CYCLES ((uint32_t) 480)
-
- /* Delay for ADC stabilization time. */
- /* Maximum delay is 1us (refer to device datasheet, parameter tSTAB). */
- /* Delay in CPU cycles, fixed to worst case: maximum CPU frequency 48MHz to */
- /* have the minimum number of CPU cycles to fulfill this delay. */
- #define ADC_STAB_DELAY_CPU_CYCLES ((uint32_t)48)
-/**
- * @}
- */
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/** @defgroup ADC_Private_Functions ADC Private Functions
- * @{
- */
-static HAL_StatusTypeDef ADC_Enable(ADC_HandleTypeDef* hadc);
-static HAL_StatusTypeDef ADC_Disable(ADC_HandleTypeDef* hadc);
-static HAL_StatusTypeDef ADC_ConversionStop(ADC_HandleTypeDef* hadc);
-static void ADC_DMAConvCplt(DMA_HandleTypeDef *hdma);
-static void ADC_DMAHalfConvCplt(DMA_HandleTypeDef *hdma);
-static void ADC_DMAError(DMA_HandleTypeDef *hdma);
-/**
- * @}
- */
-
-/* Exported functions ---------------------------------------------------------*/
-
-/** @defgroup ADC_Exported_Functions ADC Exported Functions
- * @{
- */
-
-/** @defgroup ADC_Exported_Functions_Group1 Initialization/de-initialization functions
- * @brief Initialization and Configuration functions
- *
-@verbatim
- ===============================================================================
- ##### Initialization and de-initialization functions #####
- ===============================================================================
- [..] This section provides functions allowing to:
- (+) Initialize and configure the ADC.
- (+) De-initialize the ADC
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the ADC peripheral and regular group according to
- * parameters specified in structure "ADC_InitTypeDef".
- * @note As prerequisite, ADC clock must be configured at RCC top level
- * depending on both possible clock sources: APB clock of HSI clock.
- * See commented example code below that can be copied and uncommented
- * into HAL_ADC_MspInit().
- * @note Possibility to update parameters on the fly:
- * This function initializes the ADC MSP (HAL_ADC_MspInit()) only when
- * coming from ADC state reset. Following calls to this function can
- * be used to reconfigure some parameters of ADC_InitTypeDef
- * structure on the fly, without modifying MSP configuration. If ADC
- * MSP has to be modified again, HAL_ADC_DeInit() must be called
- * before HAL_ADC_Init().
- * The setting of these parameters is conditioned to ADC state.
- * For parameters constraints, see comments of structure
- * "ADC_InitTypeDef".
- * @note This function configures the ADC within 2 scopes: scope of entire
- * ADC and scope of regular group. For parameters details, see comments
- * of structure "ADC_InitTypeDef".
- * @param hadc: ADC handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_ADC_Init(ADC_HandleTypeDef* hadc)
-{
- HAL_StatusTypeDef tmpHALStatus = HAL_OK;
- uint32_t tmpCFGR1 = 0;
-
- /* Check ADC handle */
- if(hadc == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
- assert_param(IS_ADC_CLOCKPRESCALER(hadc->Init.ClockPrescaler));
- assert_param(IS_ADC_RESOLUTION(hadc->Init.Resolution));
- assert_param(IS_ADC_DATA_ALIGN(hadc->Init.DataAlign));
- assert_param(IS_ADC_SCAN_MODE(hadc->Init.ScanConvMode));
- assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode));
- assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DiscontinuousConvMode));
- assert_param(IS_ADC_EXTTRIG_EDGE(hadc->Init.ExternalTrigConvEdge));
- assert_param(IS_ADC_EXTTRIG(hadc->Init.ExternalTrigConv));
- assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DMAContinuousRequests));
- assert_param(IS_ADC_EOC_SELECTION(hadc->Init.EOCSelection));
- assert_param(IS_ADC_OVERRUN(hadc->Init.Overrun));
- assert_param(IS_FUNCTIONAL_STATE(hadc->Init.LowPowerAutoWait));
- assert_param(IS_FUNCTIONAL_STATE(hadc->Init.LowPowerAutoPowerOff));
-
- /* As prerequisite, into HAL_ADC_MspInit(), ADC clock must be configured */
- /* at RCC top level depending on both possible clock sources: */
- /* APB clock or HSI clock. */
- /* Refer to header of this file for more details on clock enabling procedure*/
-
- /* Actions performed only if ADC is coming from state reset: */
- /* - Initialization of ADC MSP */
- /* - ADC voltage regulator enable */
- if (hadc->State == HAL_ADC_STATE_RESET)
- {
- /* Init the low level hardware */
- HAL_ADC_MspInit(hadc);
-
- }
-
- /* Configuration of ADC parameters if previous preliminary actions are */
- /* correctly completed. */
- /* and if there is no conversion on going on regular group (ADC can be */
- /* enabled anyway, in case of call of this function to update a parameter */
- /* on the fly). */
- if ((hadc->State != HAL_ADC_STATE_ERROR) &&
- (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET) )
- {
- /* Initialize the ADC state */
- hadc->State = HAL_ADC_STATE_BUSY;
-
- /* Parameters update conditioned to ADC state: */
- /* Parameters that can be updated only when ADC is disabled: */
- /* - ADC clock mode */
- /* - ADC clock prescaler */
- if (__HAL_ADC_IS_ENABLED(hadc) == RESET)
- {
- /* Some parameters of this register are not reset, since they are set */
- /* by other functions and must be kept in case of usage of this */
- /* function on the fly (update of a parameter of ADC_InitTypeDef */
- /* without needing to reconfigure all other ADC groups/channels */
- /* parameters): */
- /* - internal measurement paths: Vbat, temperature sensor, Vref */
- /* (set into HAL_ADC_ConfigChannel() ) */
-
- /* Reset configuration of ADC configuration register CFGR2: */
- /* - ADC clock mode: CKMODE */
- hadc->Instance->CFGR2 &= ~(ADC_CFGR2_CKMODE);
-
- /* Configuration of ADC clock mode: clock source AHB or HSI with */
- /* selectable prescaler */
- hadc->Instance->CFGR2 |= hadc->Init.ClockPrescaler;
- }
-
- /* Configuration of ADC: */
- /* - discontinuous mode */
- /* - LowPowerAutoWait mode */
- /* - LowPowerAutoPowerOff mode */
- /* - continuous conversion mode */
- /* - overrun */
- /* - external trigger to start conversion */
- /* - external trigger polarity */
- /* - data alignment */
- /* - resolution */
- /* - scan direction */
- /* - DMA continuous request */
- hadc->Instance->CFGR1 &= ~( ADC_CFGR1_DISCEN |
- ADC_CFGR1_AUTOFF |
- ADC_CFGR1_AUTDLY |
- ADC_CFGR1_CONT |
- ADC_CFGR1_OVRMOD |
- ADC_CFGR1_EXTSEL |
- ADC_CFGR1_EXTEN |
- ADC_CFGR1_ALIGN |
- ADC_CFGR1_RES |
- ADC_CFGR1_SCANDIR |
- ADC_CFGR1_DMACFG );
-
- tmpCFGR1 |= (__HAL_ADC_CFGR1_AUTOWAIT(hadc->Init.LowPowerAutoWait) |
- __HAL_ADC_CFGR1_AUTOOFF(hadc->Init.LowPowerAutoPowerOff) |
- __HAL_ADC_CFGR1_CONTINUOUS(hadc->Init.ContinuousConvMode) |
- __HAL_ADC_CFGR1_OVERRUN(hadc->Init.Overrun) |
- hadc->Init.DataAlign |
- hadc->Init.Resolution |
- __HAL_ADC_CFGR1_SCANDIR(hadc->Init.ScanConvMode) |
- __HAL_ADC_CFGR1_DMACONTREQ(hadc->Init.DMAContinuousRequests) );
-
- /* Enable discontinuous mode only if continuous mode is disabled */
- if ((hadc->Init.DiscontinuousConvMode == ENABLE) &&
- (hadc->Init.ContinuousConvMode == DISABLE) )
- {
- /* Enable discontinuous mode of regular group */
- tmpCFGR1 |= ADC_CFGR1_DISCEN;
- }
-
- /* Enable external trigger if trigger selection is different of software */
- /* start. */
- /* @Note: This configuration keeps the hardware feature of parameter */
- /* ExternalTrigConvEdge "trigger edge none" equivalent to */
- /* software start. */
- if (hadc->Init.ExternalTrigConv != ADC_SOFTWARE_START)
- {
- tmpCFGR1 |= ( hadc->Init.ExternalTrigConv |
- hadc->Init.ExternalTrigConvEdge );
- }
-
- /* Update ADC configuration register with previous settings */
- hadc->Instance->CFGR1 |= tmpCFGR1;
-
- /* Check back that ADC registers have effectively been configured to */
- /* ensure of no potential problem of ADC core IP clocking. */
- /* Check through register CFGR1 (excluding analog watchdog configuration: */
- /* set into separate dedicated function). */
- if ((hadc->Instance->CFGR1 & ~(ADC_CFGR1_AWDCH | ADC_CFGR1_AWDEN | ADC_CFGR1_AWDSGL))
- == tmpCFGR1)
- {
- /* Set ADC error code to none */
- __HAL_ADC_CLEAR_ERRORCODE(hadc);
-
- /* Initialize the ADC state */
- hadc->State = HAL_ADC_STATE_READY;
- }
- else
- {
- /* Update ADC state machine to error */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- /* Set ADC error code to ADC IP internal error */
- hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
-
- tmpHALStatus = HAL_ERROR;
- }
-
- }
- else
- {
- /* Update ADC state machine to error */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- tmpHALStatus = HAL_ERROR;
- }
-
- /* Return function status */
- return tmpHALStatus;
-}
-
-
-/**
- * @brief Deinitialize the ADC peripheral registers to their default reset
- * values, with deinitialization of the ADC MSP.
- * @note For devices with several ADCs: reset of ADC common registers is done
- * only if all ADCs sharing the same common group are disabled.
- * If this is not the case, reset of these common parameters reset is
- * bypassed without error reporting: it can be the intended behaviour in
- * case of reset of a single ADC while the other ADCs sharing the same
- * common group is still running.
- * @param hadc: ADC handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_ADC_DeInit(ADC_HandleTypeDef* hadc)
-{
- HAL_StatusTypeDef tmpHALStatus = HAL_OK;
-
- /* Check ADC handle */
- if(hadc == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_BUSY;
-
- /* Stop potential conversion on going, on regular group */
- tmpHALStatus = ADC_ConversionStop(hadc);
-
- /* Disable ADC peripheral if conversions are effectively stopped */
- if (tmpHALStatus != HAL_ERROR)
- {
- /* Disable the ADC peripheral */
- tmpHALStatus = ADC_Disable(hadc);
-
- /* Check if ADC is effectively disabled */
- if (tmpHALStatus != HAL_ERROR)
- {
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_READY;
- }
- }
-
-
- /* Configuration of ADC parameters if previous preliminary actions are */
- /* correctly completed. */
- if (tmpHALStatus != HAL_ERROR)
- {
-
- /* ========== Reset ADC registers ========== */
- /* Reset register IER */
- __HAL_ADC_DISABLE_IT(hadc, (ADC_IT_AWD | ADC_IT_OVR |
- ADC_IT_EOS | ADC_IT_EOC |
- ADC_IT_EOSMP | ADC_IT_RDY ) );
-
- /* Reset register ISR */
- __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_AWD | ADC_FLAG_OVR |
- ADC_FLAG_EOS | ADC_FLAG_EOC |
- ADC_FLAG_EOSMP | ADC_FLAG_RDY ) );
-
- /* Reset register CR */
- /* Bits ADC_CR_ADCAL, ADC_CR_ADSTP, ADC_CR_ADSTART are in access mode */
- /* "read-set": no direct reset applicable. */
-
- /* Reset register CFGR1 */
- hadc->Instance->CFGR1 &= ~(ADC_CFGR1_AWDCH | ADC_CFGR1_AWDEN | ADC_CFGR1_AWDSGL | ADC_CFGR1_DISCEN |
- ADC_CFGR1_AUTOFF | ADC_CFGR1_WAIT | ADC_CFGR1_CONT | ADC_CFGR1_OVRMOD |
- ADC_CFGR1_EXTEN | ADC_CFGR1_EXTSEL | ADC_CFGR1_ALIGN | ADC_CFGR1_RES |
- ADC_CFGR1_SCANDIR | ADC_CFGR1_DMACFG | ADC_CFGR1_DMAEN );
-
- /* Reset register CFGR2 */
- /* @Note: Update of ADC clock mode is conditioned to ADC state disabled: */
- /* already done above. */
- hadc->Instance->CFGR2 &= ~ADC_CFGR2_CKMODE;
-
- /* Reset register SMPR */
- hadc->Instance->SMPR &= ~ADC_SMPR_SMP;
-
- /* Reset register TR1 */
- hadc->Instance->TR &= ~(ADC_TR_HT | ADC_TR_LT);
-
- /* Reset register CHSELR */
- hadc->Instance->CHSELR &= ~(ADC_CHSELR_CHSEL18 | ADC_CHSELR_CHSEL17 | ADC_CHSELR_CHSEL16 |
- ADC_CHSELR_CHSEL15 | ADC_CHSELR_CHSEL14 | ADC_CHSELR_CHSEL13 | ADC_CHSELR_CHSEL12 |
- ADC_CHSELR_CHSEL11 | ADC_CHSELR_CHSEL10 | ADC_CHSELR_CHSEL9 | ADC_CHSELR_CHSEL8 |
- ADC_CHSELR_CHSEL7 | ADC_CHSELR_CHSEL6 | ADC_CHSELR_CHSEL5 | ADC_CHSELR_CHSEL4 |
- ADC_CHSELR_CHSEL3 | ADC_CHSELR_CHSEL2 | ADC_CHSELR_CHSEL1 | ADC_CHSELR_CHSEL0 );
-
- /* Reset register DR */
- /* bits in access mode read only, no direct reset applicable*/
-
- /* Reset register CCR */
- ADC->CCR &= ~( ADC_CCR_VBATEN |
- ADC_CCR_TSEN |
- ADC_CCR_VREFEN );
-
- /* ========== Hard reset ADC peripheral ========== */
- /* Performs a global reset of the entire ADC peripheral: ADC state is */
- /* forced to a similar state after device power-on. */
- /* If needed, copy-paste and uncomment the following reset code into */
- /* function "void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc)": */
- /* */
- /* __ADC1_FORCE_RESET() */
- /* __ADC1_RELEASE_RESET() */
-
- /* DeInit the low level hardware */
- HAL_ADC_MspDeInit(hadc);
-
- /* Set ADC error code to none */
- __HAL_ADC_CLEAR_ERRORCODE(hadc);
-
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_RESET;
- }
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
-
- /* Return function status */
- return tmpHALStatus;
-}
-
-
-/**
- * @brief Initializes the ADC MSP.
- * @param hadc: ADC handle
- * @retval None
- */
-__weak void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc)
-{
- /* NOTE : This function should not be modified. When the callback is needed,
- function HAL_ADC_MspInit must be implemented in the user file.
- */
-}
-
-/**
- * @brief DeInitializes the ADC MSP.
- * @param hadc: ADC handle
- * @retval None
- */
-__weak void HAL_ADC_MspDeInit(ADC_HandleTypeDef* hadc)
-{
- /* NOTE : This function should not be modified. When the callback is needed,
- function HAL_ADC_MspDeInit must be implemented in the user file.
- */
-}
-
-/**
- * @}
- */
-
-/** @defgroup ADC_Exported_Functions_Group2 IO operation functions
- * @brief IO operation functions
- *
-@verbatim
- ===============================================================================
- ##### IO operation functions #####
- ===============================================================================
- [..] This section provides functions allowing to:
- (+) Start conversion of regular group.
- (+) Stop conversion of regular group.
- (+) Poll for conversion complete on regular group.
- (+) Poll for conversion event.
- (+) Get result of regular channel conversion.
- (+) Start conversion of regular group and enable interruptions.
- (+) Stop conversion of regular group and disable interruptions.
- (+) Handle ADC interrupt request
- (+) Start conversion of regular group and enable DMA transfer.
- (+) Stop conversion of regular group and disable ADC DMA transfer.
-@endverbatim
- * @{
- */
-
-/**
- * @brief Enables ADC, starts conversion of regular group.
- * Interruptions enabled in this function: None.
- * @param hadc: ADC handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_ADC_Start(ADC_HandleTypeDef* hadc)
-{
- HAL_StatusTypeDef tmpHALStatus = HAL_OK;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* Perform ADC enable and conversion start if no conversion is on going */
- if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
- {
- /* Process locked */
- __HAL_LOCK(hadc);
-
- /* Enable the ADC peripheral */
- /* If low power mode AutoPowerOff is enabled, power-on/off phases are */
- /* performed automatically by hardware. */
- if (hadc->Init.LowPowerAutoPowerOff != ENABLE)
- {
- tmpHALStatus = ADC_Enable(hadc);
- }
-
- /* Start conversion if ADC is effectively enabled */
- if (tmpHALStatus != HAL_ERROR)
- {
- /* State machine update: Change ADC state */
- hadc->State = HAL_ADC_STATE_BUSY_REG;
-
- /* Set ADC error code to none */
- __HAL_ADC_CLEAR_ERRORCODE(hadc);
-
- /* Clear regular group conversion flag and overrun flag */
- /* (To ensure of no unknown state from potential previous ADC */
- /* operations) */
- __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS | ADC_FLAG_OVR));
-
- /* Enable conversion of regular group. */
- /* If software start has been selected, conversion starts immediately. */
- /* If external trigger has been selected, conversion will start at next */
- /* trigger event. */
- hadc->Instance->CR |= ADC_CR_ADSTART;
- }
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
- }
- else
- {
- tmpHALStatus = HAL_BUSY;
- }
-
- /* Return function status */
- return tmpHALStatus;
-}
-
-/**
- * @brief Stop ADC conversion of regular group, disable ADC peripheral.
- * @param hadc: ADC handle
- * @retval HAL status.
- */
-HAL_StatusTypeDef HAL_ADC_Stop(ADC_HandleTypeDef* hadc)
-{
- HAL_StatusTypeDef tmpHALStatus = HAL_OK;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* Process locked */
- __HAL_LOCK(hadc);
-
- /* 1. Stop potential conversion on going, on regular group */
- tmpHALStatus = ADC_ConversionStop(hadc);
-
- /* Disable ADC peripheral if conversions are effectively stopped */
- if (tmpHALStatus != HAL_ERROR)
- {
- /* 2. Disable the ADC peripheral */
- tmpHALStatus = ADC_Disable(hadc);
-
- /* Check if ADC is effectively disabled */
- if (tmpHALStatus != HAL_ERROR)
- {
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_READY;
- }
- }
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
-
- /* Return function status */
- return tmpHALStatus;
-}
-
-/**
- * @brief Wait for regular group conversion to be completed.
- * @param hadc: ADC handle
- * @param Timeout: Timeout value in millisecond.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_ADC_PollForConversion(ADC_HandleTypeDef* hadc, uint32_t Timeout)
-{
- uint32_t tickstart;
- uint32_t tmp_Flag_EOC;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* If end of conversion selected to end of sequence */
- if (hadc->Init.EOCSelection == EOC_SEQ_CONV)
- {
- tmp_Flag_EOC = ADC_FLAG_EOS;
- }
- /* If end of conversion selected to end of each conversion */
- else /* EOC_SINGLE_CONV */
- {
- tmp_Flag_EOC = (ADC_FLAG_EOC | ADC_FLAG_EOS);
- }
-
- /* Get timeout */
- tickstart = HAL_GetTick();
-
- /* Wait until End of Conversion flag is raised */
- while(HAL_IS_BIT_CLR(hadc->Instance->ISR, tmp_Flag_EOC))
- {
- /* Check if timeout is disabled (set to infinite wait) */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
- {
- /* Update ADC state machine to timeout */
- hadc->State = HAL_ADC_STATE_TIMEOUT;
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
-
- return HAL_ERROR;
- }
- }
- }
-
- /* Clear end of conversion flag of regular group if low power feature */
- /* "LowPowerAutoWait " is disabled, to not interfere with this feature */
- /* until data register is read using function HAL_ADC_GetValue(). */
- if (hadc->Init.LowPowerAutoWait == DISABLE)
- {
- /* Clear regular group conversion flag */
- __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS));
- }
-
- /* Update state machine on conversion status if not in error state */
- if(hadc->State != HAL_ADC_STATE_ERROR)
- {
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_EOC_REG;
- }
-
- /* Return ADC state */
- return HAL_OK;
-}
-
-/**
- * @brief Poll for conversion event.
- * @param hadc: ADC handle
- * @param EventType: the ADC event type.
- * This parameter can be one of the following values:
- * @arg AWD_EVENT: ADC Analog watchdog event
- * @arg OVR_EVENT: ADC Overrun event
- * @param Timeout: Timeout value in millisecond.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_ADC_PollForEvent(ADC_HandleTypeDef* hadc, uint32_t EventType, uint32_t Timeout)
-{
- uint32_t tickstart=0;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
- assert_param(IS_ADC_EVENT_TYPE(EventType));
-
- tickstart = HAL_GetTick();
-
- /* Check selected event flag */
- while(__HAL_ADC_GET_FLAG(hadc, EventType) == RESET)
- {
- /* Check if timeout is disabled (set to infinite wait) */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
- {
- /* Update ADC state machine to timeout */
- hadc->State = HAL_ADC_STATE_TIMEOUT;
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
-
- return HAL_ERROR;
- }
- }
- }
-
- switch(EventType)
- {
- /* Analog watchdog (level out of window) event */
- case AWD_EVENT:
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_AWD;
-
- /* Clear ADC analog watchdog flag */
- __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD);
- break;
-
- /* Overrun event */
- default: /* Case OVR_EVENT */
- /* If overrun is set to overwrite previous data, overrun event is not */
- /* considered as an error. */
- /* (cf ref manual "Managing conversions without using the DMA and without */
- /* overrun ") */
- if (hadc->Init.Overrun == OVR_DATA_PRESERVED)
- {
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- /* Set ADC error code to overrun */
- hadc->ErrorCode |= HAL_ADC_ERROR_OVR;
- }
-
- /* Clear ADC Overrun flag */
- __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_OVR);
- break;
- }
-
- /* Return ADC state */
- return HAL_OK;
-}
-
-/**
- * @brief Enables ADC, starts conversion of regular group with interruption.
- * Interruptions enabled in this function:
- * - EOC (end of conversion of regular group) or EOS (end of
- * sequence of regular group) depending on ADC initialization
- * parameter "EOCSelection"
- * - overrun (if available)
- * Each of these interruptions has its dedicated callback function.
- * @param hadc: ADC handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_ADC_Start_IT(ADC_HandleTypeDef* hadc)
-{
- HAL_StatusTypeDef tmpHALStatus = HAL_OK;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* Perform ADC enable and conversion start if no conversion is on going */
- if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
- {
- /* Process locked */
- __HAL_LOCK(hadc);
-
- /* Enable the ADC peripheral */
- /* If low power mode AutoPowerOff is enabled, power-on/off phases are */
- /* performed automatically by hardware. */
- if (hadc->Init.LowPowerAutoPowerOff != ENABLE)
- {
- tmpHALStatus = ADC_Enable(hadc);
- }
-
- /* Start conversion if ADC is effectively enabled */
- if (tmpHALStatus != HAL_ERROR)
- {
- /* State machine update: Change ADC state */
- hadc->State = HAL_ADC_STATE_BUSY_REG;
-
- /* Set ADC error code to none */
- __HAL_ADC_CLEAR_ERRORCODE(hadc);
-
- /* Clear regular group conversion flag and overrun flag */
- /* (To ensure of no unknown state from potential previous ADC */
- /* operations) */
- __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS | ADC_FLAG_OVR));
-
- /* Enable ADC end of conversion interrupt */
- /* Enable ADC overrun interrupt */
- switch(hadc->Init.EOCSelection)
- {
- case EOC_SEQ_CONV:
- __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC);
- __HAL_ADC_ENABLE_IT(hadc, (ADC_IT_EOS | ADC_IT_OVR));
- break;
- /* case EOC_SINGLE_CONV */
- default:
- __HAL_ADC_ENABLE_IT(hadc, (ADC_IT_EOC | ADC_IT_EOS | ADC_IT_OVR));
- break;
- }
-
- /* Enable conversion of regular group. */
- /* If software start has been selected, conversion starts immediately. */
- /* If external trigger has been selected, conversion will start at next */
- /* trigger event. */
- hadc->Instance->CR |= ADC_CR_ADSTART;
- }
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
- }
- else
- {
- tmpHALStatus = HAL_BUSY;
- }
-
- /* Return function status */
- return tmpHALStatus;
-}
-
-
-/**
- * @brief Stop ADC conversion of regular group, disable interruption of
- * end-of-conversion, disable ADC peripheral.
- * @param hadc: ADC handle
- * @retval HAL status.
- */
-HAL_StatusTypeDef HAL_ADC_Stop_IT(ADC_HandleTypeDef* hadc)
-{
- HAL_StatusTypeDef tmpHALStatus = HAL_OK;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* Process locked */
- __HAL_LOCK(hadc);
-
- /* 1. Stop potential conversion on going, on regular group */
- tmpHALStatus = ADC_ConversionStop(hadc);
-
- /* Disable ADC peripheral if conversions are effectively stopped */
- if (tmpHALStatus != HAL_ERROR)
- {
- /* Disable ADC end of conversion interrupt for regular group */
- /* Disable ADC overrun interrupt */
- __HAL_ADC_DISABLE_IT(hadc, (ADC_IT_EOC | ADC_IT_EOS | ADC_IT_OVR));
-
- /* 2. Disable the ADC peripheral */
- tmpHALStatus = ADC_Disable(hadc);
-
- /* Check if ADC is effectively disabled */
- if (tmpHALStatus != HAL_ERROR)
- {
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_READY;
- }
- }
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
-
- /* Return function status */
- return tmpHALStatus;
-}
-
-/**
- * @brief Enables ADC, starts conversion of regular group and transfers result
- * through DMA.
- * Interruptions enabled in this function:
- * - DMA transfer complete
- * - DMA half transfer
- * - overrun
- * Each of these interruptions has its dedicated callback function.
- * @param hadc: ADC handle
- * @param pData: The destination Buffer address.
- * @param Length: The length of data to be transferred from ADC peripheral to memory.
- * @retval None
- */
-HAL_StatusTypeDef HAL_ADC_Start_DMA(ADC_HandleTypeDef* hadc, uint32_t* pData, uint32_t Length)
-{
- HAL_StatusTypeDef tmpHALStatus = HAL_OK;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* Perform ADC enable and conversion start if no conversion is on going */
- if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
- {
- /* Process locked */
- __HAL_LOCK(hadc);
-
- /* Enable the ADC peripheral */
- /* If low power mode AutoPowerOff is enabled, power-on/off phases are */
- /* performed automatically by hardware. */
- if (hadc->Init.LowPowerAutoPowerOff != ENABLE)
- {
- tmpHALStatus = ADC_Enable(hadc);
- }
-
- /* Start conversion if ADC is effectively enabled */
- if (tmpHALStatus != HAL_ERROR)
- {
- /* State machine update: Change ADC state */
- hadc->State = HAL_ADC_STATE_BUSY_REG;
-
- /* Set ADC error code to none */
- __HAL_ADC_CLEAR_ERRORCODE(hadc);
-
-
- /* Set the DMA transfer complete callback */
- hadc->DMA_Handle->XferCpltCallback = ADC_DMAConvCplt;
-
- /* Set the DMA half transfer complete callback */
- hadc->DMA_Handle->XferHalfCpltCallback = ADC_DMAHalfConvCplt;
-
- /* Set the DMA error callback */
- hadc->DMA_Handle->XferErrorCallback = ADC_DMAError;
-
-
- /* Manage ADC and DMA start: ADC overrun interruption, DMA start, ADC */
- /* start (in case of SW start): */
-
- /* Clear regular group conversion flag and overrun flag */
- /* (To ensure of no unknown state from potential previous ADC */
- /* operations) */
- __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS | ADC_FLAG_OVR));
-
- /* Enable ADC overrun interrupt */
- __HAL_ADC_ENABLE_IT(hadc, ADC_IT_OVR);
-
- /* Enable ADC DMA mode */
- hadc->Instance->CFGR1 |= ADC_CFGR1_DMAEN;
-
- /* Start the DMA channel */
- HAL_DMA_Start_IT(hadc->DMA_Handle, (uint32_t)&hadc->Instance->DR, (uint32_t)pData, Length);
-
- /* Enable conversion of regular group. */
- /* If software start has been selected, conversion starts immediately. */
- /* If external trigger has been selected, conversion will start at next */
- /* trigger event. */
- hadc->Instance->CR |= ADC_CR_ADSTART;
- }
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
- }
- else
- {
- tmpHALStatus = HAL_BUSY;
- }
-
- /* Return function status */
- return tmpHALStatus;
-}
-
-/**
- * @brief Stop ADC conversion of regular group, disable ADC DMA transfer, disable
- * ADC peripheral.
- * Each of these interruptions has its dedicated callback function.
- * @param hadc: ADC handle
- * @retval HAL status.
- */
-HAL_StatusTypeDef HAL_ADC_Stop_DMA(ADC_HandleTypeDef* hadc)
-{
- HAL_StatusTypeDef tmpHALStatus = HAL_OK;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* Process locked */
- __HAL_LOCK(hadc);
-
- /* 1. Stop potential conversion on going, on regular group */
- tmpHALStatus = ADC_ConversionStop(hadc);
-
- /* Disable ADC peripheral if conversions are effectively stopped */
- if (tmpHALStatus != HAL_ERROR)
- {
- /* Disable ADC DMA (ADC DMA configuration ADC_CFGR_DMACFG is kept) */
- hadc->Instance->CFGR1 &= ~ADC_CFGR1_DMAEN;
-
- /* Disable the DMA channel (in case of DMA in circular mode or stop while */
- /* while DMA transfer is on going) */
- tmpHALStatus = HAL_DMA_Abort(hadc->DMA_Handle);
-
- /* Check if DMA channel effectively disabled */
- if (tmpHALStatus != HAL_OK)
- {
- /* Update ADC state machine to error */
- hadc->State = HAL_ADC_STATE_ERROR;
- }
-
- /* Disable ADC overrun interrupt */
- __HAL_ADC_DISABLE_IT(hadc, ADC_IT_OVR);
-
- /* 2. Disable the ADC peripheral */
- /* Update "tmpHALStatus" only if DMA channel disabling passed, to keep in */
- /* memory a potential failing status. */
- if (tmpHALStatus == HAL_OK)
- {
- tmpHALStatus = ADC_Disable(hadc);
- }
- else
- {
- ADC_Disable(hadc);
- }
-
- /* Check if ADC is effectively disabled */
- if (tmpHALStatus == HAL_OK)
- {
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_READY;
- }
-
- }
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
-
- /* Return function status */
- return tmpHALStatus;
-}
-
-/**
- * @brief Get ADC regular group conversion result.
- * @note Reading DR register automatically clears EOC (end of conversion of
- * regular group) flag.
- * Additionally, this functions clears EOS (end of sequence of
- * regular group) flag, in case of the end of the sequence is reached.
- * @param hadc: ADC handle
- * @retval Converted value
- */
-uint32_t HAL_ADC_GetValue(ADC_HandleTypeDef* hadc)
-{
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* @Note: EOC flag is not cleared here by software because automatically */
- /* cleared by hardware when reading register DR. */
-
- /* Clear regular group end of sequence flag */
- __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_EOS);
-
- /* Return ADC converted value */
- return hadc->Instance->DR;
-}
-
-/**
- * @brief DMA transfer complete callback.
- * @param hdma: pointer to DMA handle.
- * @retval None
- */
-static void ADC_DMAConvCplt(DMA_HandleTypeDef *hdma)
-{
- /* Retrieve ADC handle corresponding to current DMA handle */
- ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
-
- /* Update state machine on conversion status if not in error state */
- if(hadc->State != HAL_ADC_STATE_ERROR)
- {
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_EOC_REG;
- }
-
- /* Conversion complete callback */
- HAL_ADC_ConvCpltCallback(hadc);
-}
-
-/**
- * @brief DMA half transfer complete callback.
- * @param hdma: pointer to DMA handle.
- * @retval None
- */
-static void ADC_DMAHalfConvCplt(DMA_HandleTypeDef *hdma)
-{
- /* Retrieve ADC handle corresponding to current DMA handle */
- ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
-
- /* Half conversion callback */
- HAL_ADC_ConvHalfCpltCallback(hadc);
-}
-
-/**
- * @brief DMA error callback
- * @param hdma: pointer to DMA handle.
- * @retval None
- */
-static void ADC_DMAError(DMA_HandleTypeDef *hdma)
-{
- /* Retrieve ADC handle corresponding to current DMA handle */
- ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
-
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- /* Set ADC error code to DMA error */
- hadc->ErrorCode |= HAL_ADC_ERROR_DMA;
-
- /* Error callback */
- HAL_ADC_ErrorCallback(hadc);
-}
-
-/**
- * @brief Handles ADC interrupt request.
- * @param hadc: ADC handle
- * @retval None
- */
-void HAL_ADC_IRQHandler(ADC_HandleTypeDef* hadc)
-{
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
- assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode));
- assert_param(IS_ADC_EOC_SELECTION(hadc->Init.EOCSelection));
-
- /* ========== Check End of Conversion flag for regular group ========== */
- if( (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOC) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_EOC)) ||
- (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOS) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_EOS)) )
- {
- /* Update state machine on conversion status if not in error state */
- if(hadc->State != HAL_ADC_STATE_ERROR)
- {
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_EOC_REG;
- }
-
- /* Disable interruption if no further conversion upcoming by regular */
- /* external trigger or by continuous mode, */
- /* and if scan sequence if completed. */
- if(__HAL_ADC_IS_SOFTWARE_START_REGULAR(hadc) &&
- (hadc->Init.ContinuousConvMode == DISABLE) )
- {
- /* If End of Sequence is reached, disable interrupts */
- if( __HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOS) )
- {
- /* Allowed to modify bits ADC_IT_EOC/ADC_IT_EOS only if bit */
- /* ADSTART==0 (no conversion on going) */
- if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
- {
- /* Disable ADC end of sequence conversion interrupt */
- /* @Note: Overrun interrupt was enabled with EOC interrupt in */
- /* HAL_Start_IT(), but is not disabled here because can be used */
- /* by overrun IRQ process below. */
- __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC | ADC_IT_EOS);
- }
- else
- {
- /* Change ADC state to error state */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- /* Set ADC error code to ADC IP internal error */
- hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
- }
- }
- }
-
- /* Conversion complete callback */
- /* @Note: into callback, to determine if conversion has been triggered */
- /* from EOC or EOS, possibility to use: */
- /* " if( __HAL_ADC_GET_FLAG(&hadc, ADC_FLAG_EOS)) " */
- HAL_ADC_ConvCpltCallback(hadc);
-
-
- /* Clear regular group conversion flag */
- /* @Note: in case of overrun set to OVR_DATA_PRESERVED, end of conversion */
- /* flags clear induces the release of the preserved data. */
- /* Therefore, if the preserved data value is needed, it must be */
- /* read preliminarily into HAL_ADC_ConvCpltCallback(). */
- __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS) );
- }
-
- /* ========== Check Analog watchdog flags ========== */
- if(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_AWD) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_AWD))
- {
- /* Change ADC state */
- hadc->State = HAL_ADC_STATE_AWD;
-
- /* Level out of window callback */
- HAL_ADC_LevelOutOfWindowCallback(hadc);
-
- /* Clear ADC Analog watchdog flag */
- __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD);
-
- }
-
-
- /* ========== Check Overrun flag ========== */
- if(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_OVR) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_OVR))
- {
- /* If overrun is set to overwrite previous data (default setting), */
- /* overrun event is not considered as an error. */
- /* (cf ref manual "Managing conversions without using the DMA and without */
- /* overrun ") */
- /* Exception for usage with DMA overrun event always considered as an */
- /* error. */
- if ((hadc->Init.Overrun == OVR_DATA_PRESERVED) ||
- HAL_IS_BIT_SET(hadc->Instance->CFGR1, ADC_CFGR1_DMAEN) )
- {
- /* Change ADC state to error state */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- /* Set ADC error code to overrun */
- hadc->ErrorCode |= HAL_ADC_ERROR_OVR;
-
- /* Error callback */
- HAL_ADC_ErrorCallback(hadc);
- }
-
- /* Clear the Overrun flag */
- __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_OVR);
- }
-
-}
-
-
-/**
- * @brief Conversion complete callback in non blocking mode
- * @param hadc: ADC handle
- * @retval None
- */
-__weak void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc)
-{
- /* NOTE : This function should not be modified. When the callback is needed,
- function HAL_ADC_ConvCpltCallback must be implemented in the user file.
- */
-}
-
-/**
- * @brief Conversion DMA half-transfer callback in non blocking mode
- * @param hadc: ADC handle
- * @retval None
- */
-__weak void HAL_ADC_ConvHalfCpltCallback(ADC_HandleTypeDef* hadc)
-{
- /* NOTE : This function should not be modified. When the callback is needed,
- function HAL_ADC_ConvHalfCpltCallback must be implemented in the user file.
- */
-}
-
-/**
- * @brief Analog watchdog callback in non blocking mode.
- * @param hadc: ADC handle
- * @retval None
- */
-__weak void HAL_ADC_LevelOutOfWindowCallback(ADC_HandleTypeDef* hadc)
-{
- /* NOTE : This function should not be modified. When the callback is needed,
- function HAL_ADC_LevelOoutOfWindowCallback must be implemented in the user file.
- */
-}
-
-/**
- * @brief ADC error callback in non blocking mode
- * (ADC conversion with interruption or transfer by DMA)
- * @param hadc: ADC handle
- * @retval None
- */
-__weak void HAL_ADC_ErrorCallback(ADC_HandleTypeDef *hadc)
-{
- /* NOTE : This function should not be modified. When the callback is needed,
- function HAL_ADC_ErrorCallback must be implemented in the user file.
- */
-}
-
-
-/**
- * @}
- */
-
-/** @defgroup ADC_Exported_Functions_Group3 Peripheral Control functions
- * @brief Peripheral Control functions
- *
-@verbatim
- ===============================================================================
- ##### Peripheral Control functions #####
- ===============================================================================
- [..] This section provides functions allowing to:
- (+) Configure channels on regular group
- (+) Configure the analog watchdog
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Configures the the selected channel to be linked to the regular
- * group.
- * @note In case of usage of internal measurement channels:
- * VrefInt/Vbat/TempSensor.
- * Sampling time constraints must be respected (sampling time can be
- * adjusted in function of ADC clock frequency and sampling time
- * setting).
- * Refer to device datasheet for timings values, parameters TS_vrefint,
- * TS_vbat, TS_temp (values rough order: 5us to 17us).
- * These internal paths can be be disabled using function
- * HAL_ADC_DeInit().
- * @note Possibility to update parameters on the fly:
- * This function initializes channel into regular group, following
- * calls to this function can be used to reconfigure some parameters
- * of structure "ADC_ChannelConfTypeDef" on the fly, without reseting
- * the ADC.
- * The setting of these parameters is conditioned to ADC state.
- * For parameters constraints, see comments of structure
- * "ADC_ChannelConfTypeDef".
- * @param hadc: ADC handle
- * @param sConfig: Structure of ADC channel for regular group.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_ADC_ConfigChannel(ADC_HandleTypeDef* hadc, ADC_ChannelConfTypeDef* sConfig)
-{
- HAL_StatusTypeDef tmpHALStatus = HAL_OK;
- __IO uint32_t wait_loop_index = 0;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
- assert_param(IS_ADC_CHANNEL(sConfig->Channel));
- assert_param(IS_ADC_RANK(sConfig->Rank));
- assert_param(IS_ADC_SAMPLE_TIME(sConfig->SamplingTime));
-
- /* Process locked */
- __HAL_LOCK(hadc);
-
- /* Parameters update conditioned to ADC state: */
- /* Parameters that can be updated when ADC is disabled or enabled without */
- /* conversion on going on regular group: */
- /* - Channel number */
- /* - Channel sampling time */
- /* - Management of internal measurement channels: Vbat/VrefInt/TempSensor */
- if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
- {
- /* Configure channel: depending on rank setting, add it or remove it from */
- /* ADC conversion sequencer. */
- if (sConfig->Rank != ADC_RANK_NONE)
- {
- /* Regular sequence configuration */
- /* Set the channel selection register from the selected channel */
- hadc->Instance->CHSELR |= __HAL_ADC_CHSELR_CHANNEL(sConfig->Channel);
-
- /* Channel sampling time configuration */
- /* Modify sampling time if needed (not needed in case of reoccurrence */
- /* for several channels programmed consecutively into the sequencer) */
- if (sConfig->SamplingTime != __HAL_ADC_GET_SAMPLINGTIME(hadc))
- {
- /* Channel sampling time configuration */
- /* Clear the old sample time */
- hadc->Instance->SMPR &= ~(ADC_SMPR_SMP);
-
- /* Set the new sample time */
- hadc->Instance->SMPR |= (sConfig->SamplingTime);
- }
-
- /* Management of internal measurement channels: Vbat/VrefInt/TempSensor */
- /* internal measurement paths enable: If internal channel selected, */
- /* enable dedicated internal buffers and path. */
- /* @Note: these internal measurement paths can be disabled using */
- /* HAL_ADC_DeInit() or removing the channel from sequencer with */
- /* channel configuration parameter "Rank". */
-
- /* If Channel_16 is selected, enable Temp. sensor measurement path. */
- if (sConfig->Channel == ADC_CHANNEL_TEMPSENSOR)
- {
- ADC->CCR |= ADC_CCR_TSEN;
-
- /* Delay for temperature sensor stabilization time */
- while(wait_loop_index < ADC_TEMPSENSOR_DELAY_CPU_CYCLES)
- {
- wait_loop_index++;
- }
- }
- /* If Channel_17 is selected, enable VBAT measurement path. */
- else if (sConfig->Channel == ADC_CHANNEL_VBAT)
- {
- ADC->CCR |= ADC_CCR_VBATEN;
- }
- /* If Channel_18 is selected, enable VREFINT measurement path. */
- else if (sConfig->Channel == ADC_CHANNEL_VREFINT)
- {
- ADC->CCR |= ADC_CCR_VREFEN;
- }
-
- }
- else
- {
- /* Regular sequence configuration */
- /* Reset the channel selection register from the selected channel */
- hadc->Instance->CHSELR &= ~__HAL_ADC_CHSELR_CHANNEL(sConfig->Channel);
-
- /* Management of internal measurement channels: Vbat/VrefInt/TempSensor */
- /* internal measurement paths disable: If internal channel selected, */
- /* disable dedicated internal buffers and path. */
-
- /* If Channel_16 is selected, disable Temp. sensor measurement path. */
- if (sConfig->Channel == ADC_CHANNEL_TEMPSENSOR)
- {
- ADC->CCR &= ~ADC_CCR_TSEN;
- }
- /* If Channel_17 is selected, disable VBAT measurement path. */
- else if (sConfig->Channel == ADC_CHANNEL_VBAT)
- {
- ADC->CCR &= ~ADC_CCR_VBATEN;
- }
- /* If Channel_18 is selected, disable VREFINT measurement path. */
- else if (sConfig->Channel == ADC_CHANNEL_VREFINT)
- {
- ADC->CCR &= ~ADC_CCR_VREFEN;
- }
- }
-
- }
-
-
- /* If a conversion is on going on regular group, no update on regular */
- /* channel could be done on neither of the channel configuration structure */
- /* parameters. */
- else
- {
- /* Update ADC state machine to error */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- tmpHALStatus = HAL_ERROR;
- }
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
-
- /* Return function status */
- return tmpHALStatus;
-}
-
-
-/**
- * @brief Configures the analog watchdog.
- * @note Possibility to update parameters on the fly:
- * This function initializes the selected analog watchdog, following
- * calls to this function can be used to reconfigure some parameters
- * of structure "ADC_AnalogWDGConfTypeDef" on the fly, without reseting
- * the ADC.
- * The setting of these parameters is conditioned to ADC state.
- * For parameters constraints, see comments of structure
- * "ADC_AnalogWDGConfTypeDef".
- * @param hadc: ADC handle
- * @param AnalogWDGConfig: Structure of ADC analog watchdog configuration
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_ADC_AnalogWDGConfig(ADC_HandleTypeDef* hadc, ADC_AnalogWDGConfTypeDef* AnalogWDGConfig)
-{
- HAL_StatusTypeDef tmpHALStatus = HAL_OK;
-
- uint32_t tmpAWDHighThresholdShifted;
- uint32_t tmpAWDLowThresholdShifted;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
- assert_param(IS_FUNCTIONAL_STATE(AnalogWDGConfig->ITMode));
-
- /* Verify if threshold is within the selected ADC resolution */
- assert_param(IS_ADC_RANGE(__HAL_ADC_GET_RESOLUTION(hadc), AnalogWDGConfig->HighThreshold));
- assert_param(IS_ADC_RANGE(__HAL_ADC_GET_RESOLUTION(hadc), AnalogWDGConfig->LowThreshold));
-
- if(AnalogWDGConfig->WatchdogMode == ADC_ANALOGWATCHDOG_SINGLE_REG)
- {
- assert_param(IS_ADC_CHANNEL(AnalogWDGConfig->Channel));
- }
-
- /* Process locked */
- __HAL_LOCK(hadc);
-
- /* Parameters update conditioned to ADC state: */
- /* Parameters that can be updated when ADC is disabled or enabled without */
- /* conversion on going on regular group: */
- /* - Analog watchdog channels */
- /* - Analog watchdog thresholds */
- if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
- {
- /* Configuration of analog watchdog: */
- /* - Set the analog watchdog enable mode: one or overall group of */
- /* channels. */
- /* - Set the Analog watchdog channel (is not used if watchdog */
- /* mode "all channels": ADC_CFGR_AWD1SGL=0). */
- hadc->Instance->CFGR1 &= ~( ADC_CFGR1_AWDSGL |
- ADC_CFGR1_AWDEN |
- ADC_CFGR1_AWDCH );
-
- hadc->Instance->CFGR1 |= ( AnalogWDGConfig->WatchdogMode |
- __HAL_ADC_CFGR_AWDCH(AnalogWDGConfig->Channel) );
-
- /* Shift the offset in function of the selected ADC resolution: Thresholds*/
- /* have to be left-aligned on bit 11, the LSB (right bits) are set to 0 */
- tmpAWDHighThresholdShifted = __HAL_ADC_AWD1THRESHOLD_SHIFT_RESOLUTION(hadc, AnalogWDGConfig->HighThreshold);
- tmpAWDLowThresholdShifted = __HAL_ADC_AWD1THRESHOLD_SHIFT_RESOLUTION(hadc, AnalogWDGConfig->LowThreshold);
-
- /* Set the high and low thresholds */
- hadc->Instance->TR &= ~(ADC_TR_HT | ADC_TR_LT);
- hadc->Instance->TR |= ( __HAL_ADC_TRX_HIGHTHRESHOLD (tmpAWDHighThresholdShifted) |
- tmpAWDLowThresholdShifted );
-
- /* Clear the ADC Analog watchdog flag (in case of left enabled by */
- /* previous ADC operations) to be ready to use for HAL_ADC_IRQHandler() */
- /* or HAL_ADC_PollForEvent(). */
- __HAL_ADC_CLEAR_FLAG(hadc, ADC_IT_AWD);
-
- /* Configure ADC Analog watchdog interrupt */
- if(AnalogWDGConfig->ITMode == ENABLE)
- {
- /* Enable the ADC Analog watchdog interrupt */
- __HAL_ADC_ENABLE_IT(hadc, ADC_IT_AWD);
- }
- else
- {
- /* Disable the ADC Analog watchdog interrupt */
- __HAL_ADC_DISABLE_IT(hadc, ADC_IT_AWD);
- }
-
- }
- /* If a conversion is on going on regular group, no update could be done */
- /* on neither of the AWD configuration structure parameters. */
- else
- {
- /* Update ADC state machine to error */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- tmpHALStatus = HAL_ERROR;
- }
-
-
- /* Process unlocked */
- __HAL_UNLOCK(hadc);
-
- /* Return function status */
- return tmpHALStatus;
-}
-
-
-/**
- * @}
- */
-
-
-/** @defgroup ADC_Exported_Functions_Group4 Peripheral State functions
- * @brief Peripheral State functions
- *
-@verbatim
- ===============================================================================
- ##### Peripheral State and Errors functions #####
- ===============================================================================
- [..]
- This subsection provides functions to get in run-time the status of the
- peripheral.
- (+) Check the ADC state
- (+) Check the ADC error code
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief return the ADC state
- * @param hadc: ADC handle
- * @retval HAL state
- */
-HAL_ADC_StateTypeDef HAL_ADC_GetState(ADC_HandleTypeDef* hadc)
-{
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* Return ADC state */
- return hadc->State;
-}
-
-/**
- * @brief Return the ADC error code
- * @param hadc: ADC handle
- * @retval ADC Error Code
- */
-uint32_t HAL_ADC_GetError(ADC_HandleTypeDef *hadc)
-{
- return hadc->ErrorCode;
-}
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/** @defgroup ADC_Private_Functions ADC Private Functions
- * @{
- */
-
-/**
- * @brief Enable the selected ADC.
- * @note Prerequisite condition to use this function: ADC must be disabled
- * and voltage regulator must be enabled (done into HAL_ADC_Init()).
- * @param hadc: ADC handle
- * @retval HAL status.
- */
-static HAL_StatusTypeDef ADC_Enable(ADC_HandleTypeDef* hadc)
-{
- uint32_t tickstart = 0;
- __IO uint32_t wait_loop_index = 0;
-
- /* ADC enable and wait for ADC ready (in case of ADC is disabled or */
- /* enabling phase not yet completed: flag ADC ready not yet set). */
- /* Timeout implemented to not be stuck if ADC cannot be enabled (possible */
- /* causes: ADC clock not running, ...). */
- if (__HAL_ADC_IS_ENABLED(hadc) == RESET)
- {
- /* Check if conditions to enable the ADC are fulfilled */
- if (__HAL_ADC_ENABLING_CONDITIONS(hadc) == RESET)
- {
- /* Update ADC state machine to error */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- /* Set ADC error code to ADC IP internal error */
- hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
-
- return HAL_ERROR;
- }
-
- /* Enable the ADC peripheral */
- __HAL_ADC_ENABLE(hadc);
-
- /* Delay for ADC stabilization time. */
- /* Delay fixed to worst case: maximum CPU frequency */
- while(wait_loop_index < ADC_STAB_DELAY_CPU_CYCLES)
- {
- wait_loop_index++;
- }
-
- /* Get timeout */
- tickstart = HAL_GetTick();
-
- /* Wait for ADC effectively enabled */
- while(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_RDY) == RESET)
- {
- if((HAL_GetTick() - tickstart) > ADC_ENABLE_TIMEOUT)
- {
- /* Update ADC state machine to error */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- /* Set ADC error code to ADC IP internal error */
- hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
-
- return HAL_ERROR;
- }
- }
-
- }
-
- /* Return HAL status */
- return HAL_OK;
-}
-
-/**
- * @brief Disable the selected ADC.
- * @note Prerequisite condition to use this function: ADC conversions must be
- * stopped.
- * @param hadc: ADC handle
- * @retval HAL status.
- */
-static HAL_StatusTypeDef ADC_Disable(ADC_HandleTypeDef* hadc)
-{
- uint32_t tickstart = 0;
-
- /* Verification if ADC is not already disabled: */
- /* @Note: forbidden to disable ADC (set bit ADC_CR_ADDIS) if ADC is already */
- /* disabled. */
- if (__HAL_ADC_IS_ENABLED(hadc) != RESET )
- {
- /* Check if conditions to disable the ADC are fulfilled */
- if (__HAL_ADC_DISABLING_CONDITIONS(hadc) != RESET)
- {
- /* Disable the ADC peripheral */
- __HAL_ADC_DISABLE(hadc);
- }
- else
- {
- /* Update ADC state machine to error */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- /* Set ADC error code to ADC IP internal error */
- hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
-
- return HAL_ERROR;
- }
-
- /* Wait for ADC effectively disabled */
- tickstart = HAL_GetTick();
-
- while(HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADEN))
- {
- if((HAL_GetTick() - tickstart) > ADC_ENABLE_TIMEOUT)
- {
- /* Update ADC state machine to error */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- /* Set ADC error code to ADC IP internal error */
- hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
-
- return HAL_ERROR;
- }
- }
- }
-
- /* Return HAL status */
- return HAL_OK;
-}
-
-
-/**
- * @brief Stop ADC conversion.
- * @note Prerequisite condition to use this function: ADC conversions must be
- * stopped to disable the ADC.
- * @param hadc: ADC handle
- * @retval HAL status.
- */
-static HAL_StatusTypeDef ADC_ConversionStop(ADC_HandleTypeDef* hadc)
-{
- uint32_t tickstart = 0;
-
- /* Check the parameters */
- assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
-
- /* Verification if ADC is not already stopped on regular group to bypass */
- /* this function if not needed. */
- if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc))
- {
-
- /* Stop potential conversion on going on regular group */
- /* Software is allowed to set ADSTP only when ADSTART=1 and ADDIS=0 */
- if (HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADSTART) &&
- HAL_IS_BIT_CLR(hadc->Instance->CR, ADC_CR_ADDIS) )
- {
- /* Stop conversions on regular group */
- hadc->Instance->CR |= ADC_CR_ADSTP;
- }
-
- /* Wait for conversion effectively stopped */
- tickstart = HAL_GetTick();
-
- while((hadc->Instance->CR & ADC_CR_ADSTART) != RESET)
- {
- if((HAL_GetTick() - tickstart) > ADC_STOP_CONVERSION_TIMEOUT)
- {
- /* Update ADC state machine to error */
- hadc->State = HAL_ADC_STATE_ERROR;
-
- /* Set ADC error code to ADC IP internal error */
- hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
-
- return HAL_ERROR;
- }
- }
-
- }
-
- /* Return HAL status */
- return HAL_OK;
-}
-
-/**
- * @}
- */
-
-#endif /* HAL_ADC_MODULE_ENABLED */
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
projects / qmk_firmware.git / blobdiff