mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_NUCLEO_F334R8/stm32f3xx_hal_adc_ex.c
- Committer:
- janekm
- Date:
- 2014-09-16
- Revision:
- 310:6188e0254baa
- Parent:
- 237:f3da66175598
File content as of revision 310:6188e0254baa:
/** ****************************************************************************** * @file stm32f3xx_hal_adc.c * @author MCD Application Team * @version V1.0.1 * @date 18-June-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 and injected * groups, using 3 possible modes: polling, interruption or DMA. * ++ Multimode feature (available on devices with 2 ADCs or more) * ++ Calibration (ADC automatic self-calibration) * + Control functions * ++ Configure channels on regular group * ++ Configure channels on injected group * ++ Configure the analog watchdog * + 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 (available only on STM32F30xxC devices). (#) Interrupt generation at the end of regular conversion, end of injected 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. (#) Channel-wise programmable sampling time. (#) ADC conversion Regular or Injected groups. (#) External trigger (timer or EXTI) with configurable polarity for both regular and injected groups. (#) DMA request generation for transfer of conversions data of regular group. (#) Multimode Dual mode (available on devices with 2 ADCs or more). (#) Configurable DMA data storage in Multimode Dual mode (available on devices with 2 DCs or more). (#) Configurable delay between conversions in Dual interleaved mode (available on devices with 2 DCs or more). (#) ADC calibration (#) ADC channels selectable single/differential input (available only on STM32F30xxC devices) (#) ADC Injected sequencer&channels configuration context queue (available only on STM32F30xxC devices) (#) ADC offset on injected and regular groups (offset on regular group available only on STM32F30xxC devices) (#) 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 (connected to Vssa) to Vref+ (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. For STM32F30x/STM32F33x devices: Two possible clock sources: synchronous clock derived from AHB clock or asynchronous clock derived from ADC dedicated PLL 72MHz. For example, in case of device with a single ADC: __ADC1_CLK_ENABLE() (mandatory) __HAL_RCC_ADC1_CONFIG(RCC_ADC1PLLCLK_DIV1); (optional) For example, in case of device with several ADCs: if((hadc->Instance == ADC1) || (hadc->Instance == ADC2)) { __ADC12_CLK_ENABLE() (mandatory) __HAL_RCC_ADC12_CONFIG(RCC_ADC12PLLCLK_DIV1); (optional) } else { __ADC34_CLK_ENABLE() (mandatory) __HAL_RCC_ADC34_CONFIG(RCC_ADC34PLLCLK_DIV1); (optional) } For STM32F37x devices: Only one clock source: APB2 clock. Example: __HAL_RCC_ADC1_CONFIG(RCC_ADC1PCLK2_DIV2); (#) 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() HAL_ADCEx_InjectedStart(), HAL_ADCEx_InjectedStart_IT() or HAL_ADC_MultiModeStart_DMA(). *** Channels to regular group configuration *** ============================================ [..] (+) 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. *** Multimode ADCs configuration *** ====================================================== [..] (+) Multimode feature is available on devices with 2 ADCs or more. (+) Refer to "Channels to regular group" description to configure the ADC1 and ADC2 regular groups. (+) Select the Multi mode ADC features (dual mode simultaneous, interleaved, ...) and configure the DMA mode using HAL_ADCEx_MultiModeConfigChannel() functions. (+) Read the ADCs converted values using the HAL_ADCEx_MultiModeGetValue() 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. *** Channels to injected group configuration *** ============================================= [..] (+) To configure the ADC Injected channels group features, use HAL_ADCEx_InjectedConfigChannel() functions. (+) To activate the continuous mode, use the HAL_ADC_Init() function. (+) To read the ADC converted values, use the HAL_ADCEx_InjectedGetValue() 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 "stm32f3xx_hal.h" /** @addtogroup STM32F3xx_HAL_Driver * @{ */ /** @defgroup ADCEx * @brief ADC Extended HAL module driver * @{ */ #ifdef HAL_ADC_MODULE_ENABLED /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /* Fixed timeout values for ADC calibration, enable settling time, disable */ /* settling time. */ /* Values defined to be higher than worst cases: low clock frequency, */ /* maximum prescalers. */ /* Ex of profile low frequency : Clock source at 0.5 MHz, ADC clock */ /* prescaler 256 (devices STM32F30xx), sampling time 7.5 ADC clock cycles, */ /* resolution 12 bits. */ /* Unit: ms */ #define ADC_CALIBRATION_TIMEOUT ((uint32_t) 10) #define ADC_ENABLE_TIMEOUT ((uint32_t) 2) #define ADC_DISABLE_TIMEOUT ((uint32_t) 2) #define ADC_STOP_CONVERSION_TIMEOUT ((uint32_t) 11) /* Timeout to wait for current conversion on going to be completed. */ /* Timeout fixed to worst case, for 1 channel. */ /* - maximum sampling time (601.5 adc_clk) */ /* - ADC resolution (Tsar 12 bits= 12.5 adc_clk) */ /* - ADC clock (from PLL with prescaler 256 (devices STM32F30xx)) */ /* Unit: cycles of CPU clock. */ #define ADC_CONVERSION_TIME_MAX_CPU_CYCLES ((uint32_t) 156928) /* Delay for ADC stabilization time (ADC voltage regulator start-up time) */ /* Maximum delay is 10us (refer to device datasheet, param. TADCVREG_STUP). */ /* Delay in CPU cycles, fixed to worst case: maximum CPU frequency 72MHz to */ /* have the minimum number of CPU cycles to fulfill this delay. */ #define ADC_STAB_DELAY_CPU_CYCLES ((uint32_t)720) /* Delay for temperature sensor stabilization time. */ /* Maximum delay is 10us (refer device datasheet, parameter tSTART). */ /* Delay in CPU cycles, fixed to worst case: maximum CPU frequency 72MHz to */ /* have the minimum number of CPU cycles to fulfill this delay. */ #define ADC_TEMPSENSOR_DELAY_CPU_CYCLES ((uint32_t)720) #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /* Fixed timeout values for ADC calibration, enable settling time. */ /* Values defined to be higher than worst cases: low clocks freq, */ /* maximum prescalers. */ /* ex: On STM32F303C, clock source PLL=1MHz, presc. RCC_ADC12PLLCLK_DIV256 */ /* Unit: ms */ #define ADC_CALIBRATION_TIMEOUT ((uint32_t) 10) #define ADC_ENABLE_TIMEOUT ((uint32_t) 10) /* 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)72) /* Maximum number of CPU cycles corresponding to 1 ADC cycle */ /* Value fixed to worst case: clock prescalers slowing down ADC clock to */ /* minimum frequency */ /* - AHB prescaler: 16 */ /* - ADC prescaler: 8 */ /* Unit: cycles of CPU clock. */ #define ADC_CYCLE_WORST_CASE_CPU_CYCLES ((uint32_t) 128) /* ADC conversion cycles (unit: ADC clock cycles) */ /* (selected sampling time + conversion time of 12.5 ADC clock cycles, with */ /* resolution 12 bits) */ #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_1CYCLE5 ((uint32_t) 14) #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_7CYCLES5 ((uint32_t) 20) #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_13CYCLES5 ((uint32_t) 26) #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_28CYCLES5 ((uint32_t) 41) #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_41CYCLES5 ((uint32_t) 54) #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_55CYCLES5 ((uint32_t) 68) #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_71CYCLES5 ((uint32_t) 84) #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_239CYCLES5 ((uint32_t)252) #endif /* STM32F373xC || STM32F378xx */ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) static HAL_StatusTypeDef ADC_Enable(ADC_HandleTypeDef* hadc); static HAL_StatusTypeDef ADC_Disable(ADC_HandleTypeDef* hadc); static HAL_StatusTypeDef ADC_ConversionStop(ADC_HandleTypeDef* hadc, uint32_t ConversionGroup); #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) static HAL_StatusTypeDef ADC_Enable(ADC_HandleTypeDef* hadc); static HAL_StatusTypeDef ADC_ConversionStop_Disable(ADC_HandleTypeDef* hadc); #endif /* STM32F373xC || STM32F378xx */ static void ADC_DMAConvCplt(DMA_HandleTypeDef *hdma); static void ADC_DMAHalfConvCplt(DMA_HandleTypeDef *hdma); static void ADC_DMAError(DMA_HandleTypeDef *hdma); /* Private functions ---------------------------------------------------------*/ /** @defgroup ADCEx_Private_Functions * @{ */ /** @defgroup ADCEx_Group1 Extended Initialization/de-initialization functions * @brief Extended 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 * @{ */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @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: AHB clock or PLL 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 modifiying 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". * @note For devices with several ADCs: parameters related to common ADC * registers (ADC clock mode) are set only if all ADCs sharing the * same common group are disabled. * If this is not the case, these common parameters setting are * bypassed without error reporting: it can be the intended behaviour in * case of update of a parameter of ADC_InitTypeDef on the fly, * without disabling the other ADCs sharing the same common group. * @param hadc: ADC handle * @retval HAL status */ HAL_StatusTypeDef HAL_ADC_Init(ADC_HandleTypeDef* hadc) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; ADC_Common_TypeDef *tmpADC_Common; ADC_HandleTypeDef tmphadcSharingSameCommonRegister; uint32_t tmpCFGR = 0; uint32_t WaitLoopIndex = 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_ADC_REGULAR_NB_CONV(hadc->Init.NbrOfConversion)); assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode)); assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DiscontinuousConvMode)); assert_param(IS_ADC_REGULAR_DISCONT_NUMBER(hadc->Init.NbrOfDiscConversion)); 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)); /* As prerequisite, into HAL_ADC_MspInit(), ADC clock must be configured */ /* at RCC top level depending on both possible clock sources: */ /* PLL clock or AHB clock. */ /* For example: */ /* if((hadc->Instance == ADC1) || (hadc->Instance == ADC2)) */ /* { */ /* __ADC12_CLK_ENABLE(); */ /* __HAL_RCC_ADC12_CONFIG(RCC_ADC12PLLCLK_DIV1); */ /* } */ /* else */ /* { */ /* __ADC34_CLK_ENABLE(); */ /* __HAL_RCC_ADC34_CONFIG(RCC_ADC34PLLCLK_DIV1); */ /* } */ /* 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); /* Enable voltage regulator (if disabled at this step) */ if (HAL_IS_BIT_CLR(hadc->Instance->CR, ADC_CR_ADVREGEN_0)) { /* Note: The software must wait for the startup time of the ADC voltage */ /* regulator before launching a calibration or enabling the ADC. */ /* This temporization must be implemented by software and is */ /* equal to 10 us in the worst case process/temperature/power */ /* supply. */ /* Disable the ADC (if not already disabled) */ tmpHALStatus = ADC_Disable(hadc); /* Check if ADC is effectively disabled */ if (tmpHALStatus != HAL_ERROR) { /* Initialize the ADC state */ hadc->State = HAL_ADC_STATE_BUSY; /* Set the intermediate state before moving the ADC voltage regulator */ /* to state enable. */ hadc->Instance->CR &= ~(ADC_CR_ADVREGEN); /* Set ADVREGEN bits to 0x01 */ hadc->Instance->CR |= ADC_CR_ADVREGEN_0; /* Delay for ADC stabilization time. */ /* Delay fixed to worst case: maximum CPU frequency */ while(WaitLoopIndex < ADC_STAB_DELAY_CPU_CYCLES) { WaitLoopIndex++; } } } } /* Verification that ADC voltage regulator is correctly enabled, whatever */ /* ADC coming from state reset or not (if any potential problem of */ /* clocking, voltage regulator would not be enabled). */ if ((hadc->Instance->CR & ADC_CR_ADVREGEN) != ADC_CR_ADVREGEN_0) { /* 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; } /* 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; /* Configuration of common ADC parameters */ /* Pointer to the common control register to which is belonging hadc */ /* (Depending on STM32F3 product, there may be up to 4 ADC and 2 common */ /* control registers) */ tmpADC_Common = __HAL_ADC_COMMON_REGISTER(hadc); /* Set handle of the other ADC sharing the same common register */ __HAL_ADC_COMMON_ADC_OTHER(hadc, &tmphadcSharingSameCommonRegister); /* Parameters update conditioned to ADC state: */ /* Parameters that can be updated only when ADC is disabled: */ /* - Multimode clock configuration */ if ((__HAL_ADC_IS_ENABLED(hadc) == RESET) && ( (tmphadcSharingSameCommonRegister.Instance == NULL) || (__HAL_ADC_IS_ENABLED(&tmphadcSharingSameCommonRegister) == RESET) )) { /* Reset configuration of ADC common register CCR: */ /* - ADC clock mode: CKMODE */ /* 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): */ /* - multimode related parameters: MDMA, DMACFG, DELAY, MULTI (set */ /* into HAL_ADCEx_MultiModeConfigChannel() ) */ /* - internal measurement paths: Vbat, temperature sensor, Vref */ /* (set into HAL_ADC_ConfigChannel() or */ /* HAL_ADCEx_InjectedConfigChannel() ) */ tmpADC_Common->CCR &= ~(ADC_CCR_CKMODE); /* Configuration of common ADC clock: clock source PLL or AHB with */ /* selectable prescaler */ tmpADC_Common->CCR |= hadc->Init.ClockPrescaler; } /* Configuration of ADC: */ /* - resolution */ /* - data alignment */ /* - external trigger to start conversion */ /* - external trigger polarity */ /* - continuous conversion mode */ /* - overrun */ /* - discontinuous mode */ hadc->Instance->CFGR &= ~( ADC_CFGR_DISCNUM | ADC_CFGR_DISCEN | ADC_CFGR_CONT | ADC_CFGR_OVRMOD | ADC_CFGR_EXTSEL | ADC_CFGR_EXTEN | ADC_CFGR_ALIGN | ADC_CFGR_RES ); tmpCFGR |= ( __HAL_ADC_CFGR_CONTINUOUS(hadc->Init.ContinuousConvMode) | __HAL_ADC_CFGR_OVERRUN(hadc->Init.Overrun) | hadc->Init.DataAlign | hadc->Init.Resolution ); /* Enable discontinuous mode only if continuous mode is disabled */ if ((hadc->Init.DiscontinuousConvMode == ENABLE) && (hadc->Init.ContinuousConvMode == DISABLE) ) { /* Enable the selected ADC regular discontinuous mode */ /* Set the number of channels to be converted in discontinuous mode */ tmpCFGR |= ( ADC_CFGR_DISCEN | __HAL_ADC_CFGR_DISCONTINUOUS_NUM(hadc->Init.NbrOfDiscConversion) ); } /* 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) { tmpCFGR |= ( __HAL_ADC_CFGR_EXTSEL(hadc, hadc->Init.ExternalTrigConv) | hadc->Init.ExternalTrigConvEdge ); } /* Parameters update conditioned to ADC state: */ /* Parameters that can be updated when ADC is disabled or enabled without */ /* conversion on going on regular and injected groups: */ /* - DMA continuous request */ /* - LowPowerAutoWait feature */ if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR_INJECTED(hadc) == RESET) { hadc->Instance->CFGR &= ~( ADC_CFGR_AUTDLY | ADC_CFGR_DMACFG ); tmpCFGR |= ( __HAL_ADC_CFGR_AUTOWAIT(hadc->Init.LowPowerAutoWait) | __HAL_ADC_CFGR_DMACONTREQ(hadc->Init.DMAContinuousRequests) ); } /* Update ADC configuration register with previous settings */ hadc->Instance->CFGR |= tmpCFGR; /* Configuration of regular group sequencer: */ /* - if scan mode is disabled, regular channels sequence length is set to */ /* 0x00: 1 channel converted (channel on regular rank 1) */ /* Parameter "NbrOfConversion" is discarded. */ /* Note: Scan mode is not present by hardware on this device, but */ /* emulated by software for alignment over all STM32 devices. */ /* - if scan mode is enabled, regular channels sequence length is set to */ /* parameter "NbrOfConversion" */ hadc->Instance->SQR1 &= ~(ADC_SQR1_L); if (hadc->Init.ScanConvMode == ADC_SCAN_ENABLE) { /* Set number of ranks in regular group sequencer */ hadc->Instance->SQR1 |= (hadc->Init.NbrOfConversion - (uint8_t)1); } /* 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; tmpHALStatus = HAL_ERROR; } /* Return function status */ return tmpHALStatus; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @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 * (clock source APB2). * 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; /* Check ADC handle */ if(hadc == NULL) { return HAL_ERROR; } /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_DATA_ALIGN(hadc->Init.DataAlign)); assert_param(IS_ADC_SCAN_MODE(hadc->Init.ScanConvMode)); assert_param(IS_ADC_REGULAR_NB_CONV(hadc->Init.NbrOfConversion)); assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode)); assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DiscontinuousConvMode)); assert_param(IS_ADC_REGULAR_DISCONT_NUMBER(hadc->Init.NbrOfDiscConversion)); assert_param(IS_ADC_EXTTRIG(hadc->Init.ExternalTrigConv)); /* As prerequisite, into HAL_ADC_MspInit(), ADC clock must be configured */ /* at RCC top level. */ /* For example: */ /* __ADC1_CLK_ENABLE(); */ /* Actions performed only if ADC is coming from state reset: */ /* - Initialization of ADC MSP */ if (hadc->State == HAL_ADC_STATE_RESET) { /* Init the low level hardware */ HAL_ADC_MspInit(hadc); } /* Stop potential conversion on going, on regular and injected groups */ /* Disable ADC peripheral */ /* Note: In case of ADC already enabled, precaution to not launch an */ /* unwanted conversion while modifying register CR2 by writing 1 to */ /* bit ADON. */ tmpHALStatus = ADC_ConversionStop_Disable(hadc); /* Configuration of ADC parameters if previous preliminary actions are */ /* correctly completed. */ if (tmpHALStatus != HAL_ERROR) { /* Initialize the ADC state */ hadc->State = HAL_ADC_STATE_BUSY; /* Set ADC parameters */ /* Configuration of ADC: */ /* - data alignment */ /* - external trigger to start conversion */ /* - external trigger polarity (always set to 1, because needed for all */ /* triggers: external trigger of SW start) */ /* - continuous conversion mode */ hadc->Instance->CR2 &= ~( ADC_CR2_ALIGN | ADC_CR2_EXTSEL | ADC_CR2_EXTTRIG | ADC_CR2_CONT ); hadc->Instance->CR2 |= ( hadc->Init.DataAlign | hadc->Init.ExternalTrigConv | ADC_CR2_EXTTRIG | __HAL_ADC_CR2_CONTINUOUS(hadc->Init.ContinuousConvMode) ); /* Configuration of ADC: */ /* - scan mode */ /* - discontinuous mode disable/enable */ /* - discontinuous mode number of conversions */ hadc->Instance->CR1 &= ~( ADC_CR1_SCAN | ADC_CR1_DISCEN | ADC_CR1_DISCNUM ); hadc->Instance->CR1 |= ( __HAL_ADC_CR1_SCAN(hadc->Init.ScanConvMode) ); /* Enable discontinuous mode only if continuous mode is disabled */ if ((hadc->Init.DiscontinuousConvMode == ENABLE) && (hadc->Init.ContinuousConvMode == DISABLE) ) { /* Enable the selected ADC regular discontinuous mode */ hadc->Instance->CR1 |= (ADC_CR1_DISCEN); /* Set the number of channels to be converted in discontinuous mode */ hadc->Instance->CR1 |= __HAL_ADC_CR1_DISCONTINUOUS_NUM(hadc->Init.NbrOfDiscConversion); } /* Configuration of regular group sequencer: */ /* - if scan mode is disabled, regular channels sequence length is set to */ /* 0x00: 1 channel converted (channel on regular rank 1) */ /* Parameter "NbrOfConversion" is discarded. */ /* Note: Scan mode is present by hardware on this device and, if */ /* disabled, discards automatically nb of conversions. Anyway, nb of */ /* conversions is forced to 0x00 for alignment over all STM32 devices. */ /* - if scan mode is enabled, regular channels sequence length is set to */ /* parameter "NbrOfConversion" */ hadc->Instance->SQR1 &= ~(ADC_SQR1_L); if (hadc->Init.ScanConvMode == ADC_SCAN_ENABLE) { /* Set number of ranks in regular group sequencer */ hadc->Instance->SQR1 |= __HAL_ADC_SQR1_L(hadc->Init.NbrOfConversion); } /* Set ADC error code to none */ __HAL_ADC_CLEAR_ERRORCODE(hadc); /* Initialize the ADC state */ hadc->State = HAL_ADC_STATE_READY; } /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @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. * @note For devices with several ADCs: Global reset of all ADCs sharing a * common group is possible. * As this function is intended to reset a single ADC, to not impact * other ADCs, instructions for global reset of multiple ADCs have been * let commented below. * If needed, the example code can be copied and uncommented into * function HAL_ADC_MspDeInit(). * @param hadc: ADC handle * @retval HAL status */ HAL_StatusTypeDef HAL_ADC_DeInit(ADC_HandleTypeDef* hadc) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; ADC_Common_TypeDef *tmpADC_Common; ADC_HandleTypeDef tmphadcSharingSameCommonRegister; /* 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 and injected groups */ tmpHALStatus = ADC_ConversionStop(hadc, REGULAR_INJECTED_GROUP); /* Disable ADC peripheral if conversions are effectively stopped */ if (tmpHALStatus != HAL_ERROR) { /* Flush register JSQR: queue sequencer reset when injected queue */ /* sequencer is enabled and ADC disabled */ /* Enable injected queue sequencer after injected conversion stop */ hadc->Instance->CFGR |= ADC_CFGR_JQM; /* 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; } else { tmpHALStatus = HAL_ERROR; } } /* 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_AWD3 | ADC_IT_AWD2 | ADC_IT_AWD1 | ADC_IT_JQOVF | ADC_IT_OVR | ADC_IT_JEOS | ADC_IT_JEOC | ADC_IT_EOS | ADC_IT_EOC | ADC_IT_EOSMP | ADC_IT_RDY ) ); /* Reset register ISR */ __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_AWD3 | ADC_FLAG_AWD2 | ADC_FLAG_AWD1 | ADC_FLAG_JQOVF | ADC_FLAG_OVR | ADC_FLAG_JEOS | ADC_FLAG_JEOC | ADC_FLAG_EOS | ADC_FLAG_EOC | ADC_FLAG_EOSMP | ADC_FLAG_RDY ) ); /* Reset register CR */ /* Bits ADC_CR_JADSTP, ADC_CR_ADSTP, ADC_CR_JADSTART, ADC_CR_ADSTART are */ /* in access mode "read-set": no direct reset applicable. */ /* Reset Calibration mode to default setting (single ended): */ /* Disable voltage regulator: */ /* Note: Voltage regulator disable is conditioned to ADC state disabled: */ /* already done above. */ /* Note: Voltage regulator disable is intended for power saving. */ /* Sequence to disable voltage regulator: */ /* 1. Set the intermediate state before moving the ADC voltage regulator */ /* to disable state. */ hadc->Instance->CR &= ~(ADC_CR_ADVREGEN | ADC_CR_ADCALDIF); /* 2. Set ADVREGEN bits to 0x10 */ hadc->Instance->CR |= ADC_CR_ADVREGEN_1; /* Reset register CFGR */ hadc->Instance->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 ); /* Reset register SMPR1 */ hadc->Instance->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 */ hadc->Instance->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 */ hadc->Instance->TR1 &= ~(ADC_TR1_HT1 | ADC_TR1_LT1); /* Reset register TR2 */ hadc->Instance->TR2 &= ~(ADC_TR2_HT2 | ADC_TR2_LT2); /* Reset register TR3 */ hadc->Instance->TR3 &= ~(ADC_TR3_HT3 | ADC_TR3_LT3); /* Reset register SQR1 */ hadc->Instance->SQR1 &= ~(ADC_SQR1_SQ4 | ADC_SQR1_SQ3 | ADC_SQR1_SQ2 | ADC_SQR1_SQ1 | ADC_SQR1_L); /* Reset register SQR2 */ hadc->Instance->SQR2 &= ~(ADC_SQR2_SQ9 | ADC_SQR2_SQ8 | ADC_SQR2_SQ7 | ADC_SQR2_SQ6 | ADC_SQR2_SQ5); /* Reset register SQR3 */ hadc->Instance->SQR3 &= ~(ADC_SQR3_SQ14 | ADC_SQR3_SQ13 | ADC_SQR3_SQ12 | ADC_SQR3_SQ11 | ADC_SQR3_SQ10); /* Reset register SQR4 */ hadc->Instance->SQR4 &= ~(ADC_SQR4_SQ16 | ADC_SQR4_SQ15); /* Reset register DR */ /* bits in access mode read only, no direct reset applicable*/ /* Reset register OFR1 */ hadc->Instance->OFR1 &= ~(ADC_OFR1_OFFSET1_EN | ADC_OFR1_OFFSET1_CH | ADC_OFR1_OFFSET1); /* Reset register OFR2 */ hadc->Instance->OFR2 &= ~(ADC_OFR2_OFFSET2_EN | ADC_OFR2_OFFSET2_CH | ADC_OFR2_OFFSET2); /* Reset register OFR3 */ hadc->Instance->OFR3 &= ~(ADC_OFR3_OFFSET3_EN | ADC_OFR3_OFFSET3_CH | ADC_OFR3_OFFSET3); /* Reset register OFR4 */ hadc->Instance->OFR4 &= ~(ADC_OFR4_OFFSET4_EN | ADC_OFR4_OFFSET4_CH | ADC_OFR4_OFFSET4); /* Reset registers JDR1, JDR2, JDR3, JDR4 */ /* bits in access mode read only, no direct reset applicable*/ /* Reset register AWD2CR */ hadc->Instance->AWD2CR &= ~(ADC_AWD2CR_AWD2CH); /* Reset register AWD3CR */ hadc->Instance->AWD3CR &= ~(ADC_AWD3CR_AWD3CH); /* Reset register DIFSEL */ hadc->Instance->DIFSEL &= ~(ADC_DIFSEL_DIFSEL); /* Reset register CALFACT */ hadc->Instance->CALFACT &= ~(ADC_CALFACT_CALFACT_D | ADC_CALFACT_CALFACT_S); /* ========== Reset common ADC registers ========== */ /* Pointer to the common control register to which is belonging hadc */ /* (Depending on STM32F3 product, there may be up to 4 ADC and 2 common */ /* control registers) */ tmpADC_Common = __HAL_ADC_COMMON_REGISTER(hadc); /* Set handle of the other ADC sharing the same common register */ __HAL_ADC_COMMON_ADC_OTHER(hadc, &tmphadcSharingSameCommonRegister); /* Software is allowed to change common parameters only when all ADCs of */ /* the common group are disabled. */ if ((__HAL_ADC_IS_ENABLED(hadc) == RESET) && ( (tmphadcSharingSameCommonRegister.Instance == NULL) || (__HAL_ADC_IS_ENABLED(&tmphadcSharingSameCommonRegister) == RESET) )) { /* Reset configuration of ADC common register CCR: - clock mode: CKMODE - multimode related parameters: MDMA, DMACFG, DELAY, MULTI (set into HAL_ADCEx_MultiModeConfigChannel() ) - internal measurement paths: Vbat, temperature sensor, Vref (set into HAL_ADC_ConfigChannel() or HAL_ADCEx_InjectedConfigChannel() ) */ tmpADC_Common->CCR &= ~( ADC_CCR_CKMODE | ADC_CCR_VBATEN | ADC_CCR_TSEN | ADC_CCR_VREFEN | ADC_CCR_DMACFG | ADC_CCR_DMACFG | ADC_CCR_DELAY | ADC_CCR_MULTI ); /* Other ADC common registers (CSR, CDR) are in access mode read only, no direct reset applicable */ } /* ========== Hard reset of ADC peripheral ========== */ /* Performs a global reset of the entire ADC peripheral: ADC state is */ /* forced to a similar state after device power-on. */ /* Caution: */ /* These settings impact both ADC of common group: ADC1&ADC2, ADC3&ADC4 */ /* if available (ADC2, ADC3, ADC4 availability depends on STM32 product) */ /* As this function is intended to reset a single ADC, instructions for */ /* global reset of multiple ADC have been let commented below. */ /* */ /* If global reset of common ADC is corresponding to the current */ /* application, copy-paste and uncomment the following reset code into */ /* function "void HAL_ADC_MspDeInit(ADC_HandleTypeDef* hadc)": */ /* */ /* ADC clock reset */ /* if((hadc->Instance == ADC1) || (hadc->Instance == ADC2)) */ /* { */ /* __ADC12_FORCE_RESET(); */ /* __ADC12_RELEASE_RESET(); */ /* } */ /* else */ /* { */ /* __ADC34_FORCE_RESET(); */ /* __ADC34_RELEASE_RESET(); */ /* } */ /* */ /* ADC clock disable of both possible clock sources: AHB clock and */ /* PLL clock. */ /* if((hadc->Instance == ADC1) || (hadc->Instance == ADC2)) */ /* { */ /* __HAL_RCC_ADC12_CONFIG(RCC_ADC12PLLCLK_OFF); */ /* __ADC12_CLK_DISABLE(); */ /* } */ /* else */ /* { */ /* __HAL_RCC_ADC34_CONFIG(RCC_ADC12PLLCLK_OFF); */ /* __ADC34_CLK_DISABLE(); */ /* } */ /* 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; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Deinitialize the ADC peripheral registers to its default reset values. * @note To not impact other ADCs, reset of common ADC registers have been * left commented below. * If needed, the example code can be copied and uncommented into * function HAL_ADC_MspDeInit(). * @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 and injected groups */ /* Disable ADC peripheral */ tmpHALStatus = ADC_ConversionStop_Disable(hadc); /* Configuration of ADC parameters if previous preliminary actions are */ /* correctly completed. */ if (tmpHALStatus != HAL_ERROR) { /* ========== Reset ADC registers ========== */ /* Reset register SR */ __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_AWD | ADC_FLAG_JEOC | ADC_FLAG_EOC | ADC_FLAG_JSTRT | ADC_FLAG_STRT)); /* Reset register CR1 */ hadc->Instance->CR1 &= ~(ADC_CR1_AWDEN | ADC_CR1_JAWDEN | ADC_CR1_DISCNUM | ADC_CR1_JDISCEN | ADC_CR1_DISCEN | ADC_CR1_JAUTO | ADC_CR1_AWDSGL | ADC_CR1_SCAN | ADC_CR1_JEOCIE | ADC_CR1_AWDIE | ADC_CR1_EOCIE | ADC_CR1_AWDCH); /* Reset register CR2 */ hadc->Instance->CR2 &= ~(ADC_CR2_TSVREFE | ADC_CR2_SWSTART | ADC_CR2_JSWSTART | ADC_CR2_EXTTRIG | ADC_CR2_EXTSEL | ADC_CR2_JEXTTRIG | ADC_CR2_JEXTSEL | ADC_CR2_ALIGN | ADC_CR2_DMA | ADC_CR2_RSTCAL | ADC_CR2_CAL | ADC_CR2_CONT | ADC_CR2_ADON ); /* Reset register SMPR1 */ hadc->Instance->SMPR1 &= ~(ADC_SMPR1_SMP17 | ADC_SMPR1_SMP16 | ADC_SMPR1_SMP15 | ADC_SMPR1_SMP14 | ADC_SMPR1_SMP13 | ADC_SMPR1_SMP12 | ADC_SMPR1_SMP11 |ADC_SMPR1_SMP10); /* Reset register SMPR2 */ hadc->Instance->SMPR2 &= ~(ADC_SMPR2_SMP9 | ADC_SMPR2_SMP8 | ADC_SMPR2_SMP7 | ADC_SMPR2_SMP6 | ADC_SMPR2_SMP5 | ADC_SMPR2_SMP4 | ADC_SMPR2_SMP3 | ADC_SMPR2_SMP2 | ADC_SMPR2_SMP1 | ADC_SMPR2_SMP0); /* Reset register JOFR1 */ hadc->Instance->JOFR1 &= ~(ADC_JOFR1_JOFFSET1); /* Reset register JOFR2 */ hadc->Instance->JOFR2 &= ~(ADC_JOFR2_JOFFSET2); /* Reset register JOFR3 */ hadc->Instance->JOFR3 &= ~(ADC_JOFR3_JOFFSET3); /* Reset register JOFR4 */ hadc->Instance->JOFR4 &= ~(ADC_JOFR4_JOFFSET4); /* Reset register HTR */ hadc->Instance->HTR &= ~(ADC_HTR_HT); /* Reset register LTR */ hadc->Instance->LTR &= ~(ADC_LTR_LT); /* Reset register SQR1 */ hadc->Instance->SQR1 &= ~(ADC_SQR1_L | ADC_SQR1_SQ16 | ADC_SQR1_SQ15 | ADC_SQR1_SQ14 | ADC_SQR1_SQ13 ); /* Reset register SQR1 */ hadc->Instance->SQR1 &= ~(ADC_SQR1_L | ADC_SQR1_SQ16 | ADC_SQR1_SQ15 | ADC_SQR1_SQ14 | ADC_SQR1_SQ13 ); /* Reset register SQR2 */ hadc->Instance->SQR2 &= ~(ADC_SQR2_SQ12 | ADC_SQR2_SQ11 | ADC_SQR2_SQ10 | ADC_SQR2_SQ9 | ADC_SQR2_SQ8 | ADC_SQR2_SQ7 ); /* Reset register SQR3 */ hadc->Instance->SQR3 &= ~(ADC_SQR3_SQ6 | ADC_SQR3_SQ5 | ADC_SQR3_SQ4 | ADC_SQR3_SQ3 | ADC_SQR3_SQ2 | ADC_SQR3_SQ1 ); /* Reset register JSQR */ hadc->Instance->JSQR &= ~(ADC_JSQR_JL | ADC_JSQR_JSQ4 | ADC_JSQR_JSQ3 | ADC_JSQR_JSQ2 | ADC_JSQR_JSQ1 ); /* Reset register JSQR */ hadc->Instance->JSQR &= ~(ADC_JSQR_JL | ADC_JSQR_JSQ4 | ADC_JSQR_JSQ3 | ADC_JSQR_JSQ2 | ADC_JSQR_JSQ1 ); /* Reset register DR */ /* bits in access mode read only, no direct reset applicable*/ /* Reset registers JDR1, JDR2, JDR3, JDR4 */ /* bits in access mode read only, no direct reset applicable*/ /* Reset VBAT measurement path, in case of enabled before by selecting */ /* channel ADC_CHANNEL_VBAT. */ SYSCFG->CFGR1 &= ~(SYSCFG_CFGR1_VBAT); /* ========== 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; } #endif /* STM32F373xC || STM32F378xx */ /** * @} */ /** @defgroup ADCEx_Group2 Extended IO operation functions * @brief Extended 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. (+) Start conversion of injected group. (+) Stop conversion of injected group. (+) Poll for conversion complete on injected group. (+) Get result of injected channel conversion. (+) Start conversion of injected group and enable interruptions. (+) Stop conversion of injected group and disable interruptions. (+) Start multimode and enable DMA transfer. (+) Stop multimode and disable ADC DMA transfer. (+) Get result of multimode conversion. (+) Perform the ADC self-calibration for single or differential ending. (+) Get calibration factors for single or differential ending. (+) Set calibration factors for single or differential ending. @endverbatim * @{ */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Enables ADC, starts conversion of regular group. * Interruptions enabled in this function: None. * @note: Case of multimode enabled (for devices with several ADCs): if ADC * is slave, ADC is enabled only (conversion is not started). If ADC * is master, ADC is enabled and multimode conversion is started. * @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)); /* Process locked */ __HAL_LOCK(hadc); /* Enable the ADC peripheral */ tmpHALStatus = ADC_Enable(hadc); /* Start conversion if ADC is effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* State machine update: Check if an injected conversion is ongoing */ if(hadc->State == HAL_ADC_STATE_BUSY_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* 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. */ /* Case of multimode enabled (for devices with several ADCs): if ADC is */ /* slave, ADC is enabled only (conversion is not started). If ADC is */ /* master, ADC is enabled and conversion is started. */ if (__HAL_ADC_NONMULTIMODE_OR_MULTIMODEMASTER(hadc) ) { hadc->Instance->CR |= ADC_CR_ADSTART; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @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)); /* Process locked */ __HAL_LOCK(hadc); /* Enable the ADC peripheral */ tmpHALStatus = ADC_Enable(hadc); /* Start conversion if ADC is effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* State machine update: Check if an injected conversion is ongoing */ if(hadc->State == HAL_ADC_STATE_BUSY_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* 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); /* Start conversion of regular group if software start has been selected. */ /* If external trigger has been selected, conversion will start at next */ /* trigger event. */ /* Note: Alternate trigger for single conversion could be to force an */ /* additional set of bit ADON "hadc->Instance->CR2 |= ADC_CR2_ADON;"*/ if (__HAL_ADC_IS_SOFTWARE_START_REGULAR(hadc)) { /* Start ADC conversion on regular group */ hadc->Instance->CR2 |= ADC_CR2_SWSTART; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Stop ADC conversion of regular group (and injected group in * case of auto_injection mode), disable ADC peripheral. * @note: ADC peripheral disable is forcing interruption of potential * conversion on injected group. If injected group is under use, it * should be preliminarily stopped using HAL_ADCEx_InjectedStop function. * @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 and injected groups */ tmpHALStatus = ADC_ConversionStop(hadc, REGULAR_INJECTED_GROUP); /* 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; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Stop ADC conversion of regular group (and injected channels in * case of auto_injection mode), disable ADC peripheral. * @note: ADC peripheral disable is forcing interruption of potential * conversion on injected group. If injected group is under use, it * should be preliminarily stopped using HAL_ADCEx_InjectedStop function. * @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); /* Stop potential conversion on going, on regular and injected groups */ /* Disable ADC peripheral */ tmpHALStatus = ADC_ConversionStop_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; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @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) { /* Update ADC state machine */ if(hadc->State != HAL_ADC_STATE_EOC_INJ_REG) { /* Check if a conversion is ready on injected group */ if(hadc->State == HAL_ADC_STATE_EOC_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_REG; } } } /* Return ADC state */ return HAL_OK; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @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; /* Variables for polling in case of scan mode enabled */ uint32_t Conversion_Timeout_CPU_cycles_max =0; uint32_t Conversion_Timeout_CPU_cycles =0; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); /* Get timeout */ tickstart = HAL_GetTick(); /* Polling for end of conversion: differentiation if single/sequence */ /* conversion. */ /* - If single conversion for regular group (Scan mode disabled or enabled */ /* with NbrOfConversion =1), flag EOC is used to determine the */ /* conversion completion. */ /* - If sequence conversion for regular group, flag EOC is set only a the */ /* end of the sequence. To poll for each conversion, the maximum */ /* conversion time is calculated from ADC conversion time (selected */ /* sampling time + conversion time of 12.5 ADC clock cycles) and */ /* APB2/ADC clock prescalers (depending on settings, conversion time */ /* range can be from 28 to 32256 CPU cycles). */ if ((HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_SCAN)) && ((hadc->Instance->SQR1 & ADC_SQR1_L) == RESET) ) { /* Wait until End of Conversion flag is raised */ while(HAL_IS_BIT_CLR(hadc->Instance->SR, ADC_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; } } } } else { /* Computation of CPU cycles corresponding to ADC conversion cycles */ /* Retrieve ADC clock prescaler and ADC maximum conversion cycles on all */ /* channels. */ Conversion_Timeout_CPU_cycles_max = __HAL_ADC_CLOCK_PRECSALER_RANGE() ; Conversion_Timeout_CPU_cycles_max *= __HAL_ADC_CONVCYCLES_MAX_RANGE(hadc); /* Maximum conversion cycles taking in account offset of 34 CPU cycles: */ /* number of CPU cycles for processing of conversion cycles estimation. */ Conversion_Timeout_CPU_cycles = 34; /* Poll with maximum conversion time */ while(Conversion_Timeout_CPU_cycles < Conversion_Timeout_CPU_cycles_max) { /* 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; } } Conversion_Timeout_CPU_cycles ++; } } /* Clear regular group conversion flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_STRT | ADC_FLAG_EOC); /* Update state machine on conversion status if not in error state */ if(hadc->State != HAL_ADC_STATE_ERROR) { /* Update ADC state machine */ if(hadc->State != HAL_ADC_STATE_EOC_INJ_REG) { /* Check if a conversion is ready on injected group */ if(hadc->State == HAL_ADC_STATE_EOC_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_REG; } } } /* Return ADC state */ return HAL_OK; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @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 1 event (main analog watchdog, present on all STM32 devices) * @arg AWD2_EVENT: ADC Analog watchdog 2 event (additional analog watchdog, present only on STM32F3 devices) * @arg AWD3_EVENT: ADC Analog watchdog 3 event (additional analog watchdog, present only on STM32F3 devices) * @arg OVR_EVENT: ADC Overrun event * @arg JQOVF_EVENT: ADC Injected context queue overflow 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; /* 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 */ /* Note: In case of several analog watchdog enabled, if needed to know */ /* which one triggered and on which ADCx, test ADC state of Analog Watchdog */ /* flags HAL_ADC_STATE_AWD/2/3 function. */ /* For example: "if (HAL_ADC_GetState(hadc1) == HAL_ADC_STATE_AWD) " */ /* "if (HAL_ADC_GetState(hadc1) == HAL_ADC_STATE_AWD2)" */ /* "if (HAL_ADC_GetState(hadc1) == HAL_ADC_STATE_AWD3)" */ /* Check analog watchdog 1 flag */ case AWD_EVENT: /* Change ADC state */ hadc->State = HAL_ADC_STATE_AWD; /* Clear ADC analog watchdog flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD1); break; /* Check analog watchdog 2 flag */ case AWD2_EVENT: /* Change ADC state */ hadc->State = HAL_ADC_STATE_AWD2; /* Clear ADC analog watchdog flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD2); break; /* Check analog watchdog 3 flag */ case AWD3_EVENT: /* Change ADC state */ hadc->State = HAL_ADC_STATE_AWD3; /* Clear ADC analog watchdog flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD3); break; /* Injected context queue overflow event */ case JQOVF_EVENT: /* Change ADC state */ hadc->State = HAL_ADC_STATE_ERROR; /* Set ADC error code to Injected context queue overflow */ hadc->ErrorCode |= HAL_ADC_ERROR_JQOVF; /* Clear ADC Injected context queue overflow flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JQOVF); 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; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @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. * @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; } } } /* Analog watchdog (level out of window) event */ /* Change ADC state */ hadc->State = HAL_ADC_STATE_AWD; /* Clear ADC analog watchdog flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD); /* Return ADC state */ return HAL_OK; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Enables ADC, starts conversion of regular group with interruption. * Interruptions enabled in this function: EOC (end of conversion), * overrun (if available). * Each of these interruptions has its dedicated callback function. * @note: Case of multimode enabled (for devices with several ADCs): This * function must be called for ADC slave first, then ADC master. * For ADC slave, ADC is enabled only (conversion is not started). * For ADC master, ADC is enabled and multimode conversion is started. * @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)); /* Process locked */ __HAL_LOCK(hadc); /* Enable the ADC peripheral */ tmpHALStatus = ADC_Enable(hadc); /* Start conversion if ADC is effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* State machine update: Check if an injected conversion is ongoing */ if(hadc->State == HAL_ADC_STATE_BUSY_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* 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. */ /* Case of multimode enabled (for devices with several ADCs): if ADC is */ /* slave, ADC is enabled only (conversion is not started). If ADC is */ /* master, ADC is enabled and conversion is started. */ if (__HAL_ADC_NONMULTIMODE_OR_MULTIMODEMASTER(hadc) ) { hadc->Instance->CR |= ADC_CR_ADSTART; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Enables ADC, starts conversion of regular group with interruption. * Interruptions enabled in this function: EOC (end of conversion), * 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)); /* Process locked */ __HAL_LOCK(hadc); /* Enable the ADC peripheral */ tmpHALStatus = ADC_Enable(hadc); /* Start conversion if ADC is effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* State machine update: Check if an injected conversion is ongoing */ if(hadc->State == HAL_ADC_STATE_BUSY_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* 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); /* Enable end of conversion interrupt for regular group */ __HAL_ADC_ENABLE_IT(hadc, ADC_IT_EOC); /* Start conversion of regular group if software start has been selected. */ /* If external trigger has been selected, conversion will start at next */ /* trigger event. */ if (__HAL_ADC_IS_SOFTWARE_START_REGULAR(hadc)) { /* Start ADC conversion on regular group */ hadc->Instance->CR2 |= ADC_CR2_SWSTART; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Stop ADC conversion of regular group (and injected group in * case of auto_injection mode), disable interruption of * end-of-conversion, disable ADC peripheral. * @note: ADC peripheral disable is forcing interruption of potential * conversion on injected group. If injected group is under use, it * should be preliminarily stopped using HAL_ADCEx_InjectedStop function. * @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 and injected groups */ tmpHALStatus = ADC_ConversionStop(hadc, REGULAR_INJECTED_GROUP); /* 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; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Stop ADC conversion of regular group (and injected group in * case of auto_injection mode), disable interrution of * end-of-conversion, disable ADC peripheral. * @param hadc: ADC handle * @retval None */ 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); /* Stop potential conversion on going, on regular and injected groups */ /* Disable ADC peripheral */ tmpHALStatus = ADC_ConversionStop_Disable(hadc); /* Check if ADC is effectively disabled */ if (tmpHALStatus != HAL_ERROR) { /* Disable ADC end of conversion interrupt for regular group */ __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC); /* Change ADC state */ hadc->State = HAL_ADC_STATE_READY; } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Enables ADC, starts conversion of regular group and transfers result * through DMA. * Interruptions enabled in this function: * overrun (if available), DMA half transfer, DMA transfer complete. * Each of these interruptions has its dedicated callback function. * @note: Case of multimode enabled (for devices with several ADCs): This * function is for single-ADC mode only. For multimode, use the * dedicated MultimodeStart 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)); /* Process locked */ __HAL_LOCK(hadc); /* Verification if multimode is disabled (for devices with several ADC) */ /* If multimode is enabled, dedicated function multimode conversion */ /* start DMA must be used. */ if(__HAL_ADC_COMMON_CCR_MULTI(hadc) == RESET) { /* Enable the ADC peripheral */ tmpHALStatus = ADC_Enable(hadc); /* Start conversion if ADC is effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* State machine update: Check if an injected conversion is ongoing */ if(hadc->State == HAL_ADC_STATE_BUSY_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* 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->CFGR |= ADC_CFGR_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; } } else { tmpHALStatus = HAL_ERROR; } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Enables ADC, starts conversion of regular group and transfers result * through DMA. * Interruptions enabled in this function: * overrun (if available), DMA half transfer, DMA transfer complete. * Each of these interruptions has its dedicated callback function. * @note For devices with several ADCs: This function is for single-ADC mode * only. For multimode, use the dedicated MultimodeStart 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)); /* Process locked */ __HAL_LOCK(hadc); /* Enable the ADC peripheral */ tmpHALStatus = ADC_Enable(hadc); /* Start conversion if ADC is effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* State machine update: Check if an injected conversion is ongoing */ if(hadc->State == HAL_ADC_STATE_BUSY_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* 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); /* Enable ADC DMA mode */ hadc->Instance->CR2 |= ADC_CR2_DMA; /* Start the DMA channel */ HAL_DMA_Start_IT(hadc->DMA_Handle, (uint32_t)&hadc->Instance->DR, (uint32_t)pData, Length); /* Start conversion of regular group if software start has been selected. */ /* If external trigger has been selected, conversion will start at next */ /* trigger event. */ /* Note: Alternate trigger for single conversion could be to force an */ /* additional set of bit ADON "hadc->Instance->CR2 |= ADC_CR2_ADON;"*/ if (__HAL_ADC_IS_SOFTWARE_START_REGULAR(hadc)) { /* Start ADC conversion on regular group */ hadc->Instance->CR2 |= ADC_CR2_SWSTART; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Stop ADC conversion of regular group (and injected channels in * case of auto_injection mode), disable ADC DMA transfer, disable * ADC peripheral. * Each of these interruptions has its dedicated callback function. * @note: ADC peripheral disable is forcing interruption of potential * conversion on injected group. If injected group is under use, it * should be preliminarily stopped using HAL_ADCEx_InjectedStop function. * @note: Case of multimode enabled (for devices with several ADCs): This * function is for single-ADC mode only. For multimode, use the * dedicated MultimodeStop 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 and injected groups */ tmpHALStatus = ADC_ConversionStop(hadc, REGULAR_INJECTED_GROUP); /* Disable ADC peripheral if conversions are effectively stopped */ if (tmpHALStatus == HAL_OK) { /* Disable ADC DMA (ADC DMA configuration ADC_CFGR_DMACFG is kept) */ hadc->Instance->CFGR &= ~ADC_CFGR_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; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Stop ADC conversion of regular group (and injected group in * case of auto_injection mode), disable ADC DMA transfer, disable * ADC peripheral. * @note: ADC peripheral disable is forcing interruption of potential * conversion on injected group. If injected group is under use, it * should be preliminarily stopped using HAL_ADCEx_InjectedStop function. * @note For devices with several ADCs: This function is for single-ADC mode * only. For multimode, use the dedicated MultimodeStop 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); /* Stop potential conversion on going, on regular and injected groups */ /* Disable ADC peripheral */ tmpHALStatus = ADC_ConversionStop_Disable(hadc); /* Check if ADC is effectively disabled */ if (tmpHALStatus != HAL_ERROR) { /* Disable ADC DMA mode */ hadc->Instance->CR2 &= ~ADC_CR2_DMA; /* 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) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_READY; } else { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Get ADC regular group conversion result. * @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 automatically cleared by hardware when reading */ /* register DR. Additionally, clear flag EOS by software. */ /* Clear regular group conversion flag */ __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS) ); /* Return ADC converted value */ return hadc->Instance->DR; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Get ADC regular group conversion result. * @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. */ /* Return ADC converted value */ return hadc->Instance->DR; } #endif /* STM32F373xC || STM32F378xx */ /** * @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) { /* Update ADC state machine */ if(hadc->State != HAL_ADC_STATE_EOC_INJ_REG) { /* Check if a conversion is ready on injected group */ if(hadc->State == HAL_ADC_STATE_EOC_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ_REG; } else { /* 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); } #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @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) { /* Check if an injected conversion is ready */ if(hadc->State == HAL_ADC_STATE_EOC_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ_REG; } else { /* 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 End of Conversion flag for injected group ========== */ if( (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_JEOC) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_JEOC)) || (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_JEOS) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_JEOS)) ) { /* Update state machine on conversion status if not in error state */ if(hadc->State != HAL_ADC_STATE_ERROR) { /* Check if a regular conversion is ready */ if(hadc->State == HAL_ADC_STATE_EOC_REG) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ; } } /* Disable interruption if no further conversion upcoming by injected */ /* external trigger or by automatic injected conversion with regular */ /* group having no further conversion upcoming (same conditions as */ /* regular group interruption disabling above), */ /* and if injected scan sequence is completed. */ if(__HAL_ADC_IS_SOFTWARE_START_INJECTED(hadc) || (HAL_IS_BIT_CLR(hadc->Instance->CFGR, ADC_CFGR_JAUTO) && (__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_JEOS)) { /* Allowed to modify bits ADC_IT_JEOC/ADC_IT_JEOS only if bit */ /* JADSTART==0 (no conversion on going) */ if (__HAL_ADC_IS_CONVERSION_ONGOING_INJECTED(hadc) == RESET) { /* Disable ADC end of sequence conversion interrupt */ __HAL_ADC_DISABLE_IT(hadc, ADC_IT_JEOC | ADC_IT_JEOS); } 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 JEOC or JEOS, possibility to use: */ /* " if( __HAL_ADC_GET_FLAG(&hadc, ADC_FLAG_JEOS)) " */ HAL_ADCEx_InjectedConvCpltCallback(hadc); /* Clear injected group conversion flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JEOC | ADC_FLAG_JEOS); } /* ========== Check Analog watchdog flags ========== */ if( (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_AWD1) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_AWD1)) || (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_AWD2) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_AWD2)) || (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_AWD3) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_AWD3)) ) { if (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_AWD1) != RESET) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_AWD; /* Clear ADC Analog watchdog flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD1); } else if (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_AWD2) != RESET) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_AWD2; /* Clear ADC Analog watchdog flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD2); } else if (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_AWD3) != RESET) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_AWD3; /* Clear ADC Analog watchdog flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD3); } else { /* Change ADC state to error state */ hadc->State = HAL_ADC_STATE_ERROR; } /* Level out of window callback */ /* Note: In case of several analog watchdog enabled, if needed to know */ /* which one triggered and on which ADCx, either: */ /* Test Analog Watchdog flags ADC_FLAG_AWD1/2/3 into function */ /* HAL_ADC_LevelOutOfWindowCallback(). */ /* For example: "if (__HAL_ADC_GET_FLAG(&hadc1, ADC_FLAG_AWD1) != RESET)" */ /* "if (__HAL_ADC_GET_FLAG(&hadc1, ADC_FLAG_AWD2) != RESET)" */ /* "if (__HAL_ADC_GET_FLAG(&hadc1, ADC_FLAG_AWD3) != RESET)" */ /* Test ADC state of Analog Watchdog flags HAL_ADC_STATE_AWD/2/3 into */ /* HAL_ADC_LevelOutOfWindowCallback(). */ /* For example: "if (HAL_ADC_GetState(&hadc1) == HAL_ADC_STATE_AWD) " */ /* "if (HAL_ADC_GetState(&hadc1) == HAL_ADC_STATE_AWD2)" */ /* "if (HAL_ADC_GetState(&hadc1) == HAL_ADC_STATE_AWD3)" */ HAL_ADC_LevelOutOfWindowCallback(hadc); } /* ========== 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->CFGR, ADC_CFGR_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); } /* ========== Check Injected context queue overflow flag ========== */ if(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_JQOVF) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_JQOVF)) { /* Change ADC state to overrun state */ hadc->State = HAL_ADC_STATE_ERROR; /* Set ADC error code to Injected context queue overflow */ hadc->ErrorCode |= HAL_ADC_ERROR_JQOVF; /* Clear the Injected context queue overflow flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JQOVF); /* Error callback */ HAL_ADCEx_InjectedQueueOverflowCallback(hadc); } } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @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_REGULAR_NB_CONV(hadc->Init.NbrOfConversion)); /* ========== 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)) { /* Check if an injected conversion is ready */ if(hadc->State == HAL_ADC_STATE_EOC_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_REG; } /* Disable interruption if no further conversion upcoming regular */ /* external trigger or by continuous mode */ if(__HAL_ADC_IS_SOFTWARE_START_REGULAR(hadc) && (hadc->Init.ContinuousConvMode == DISABLE) ) { /* Disable ADC end of single conversion interrupt */ __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC); } /* Conversion complete callback */ HAL_ADC_ConvCpltCallback(hadc); /* Clear regular group conversion flag */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_STRT | ADC_FLAG_EOC); } /* ========== Check End of Conversion flag for injected group ========== */ if(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_JEOC) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_JEOC)) { /* Check if a regular conversion is ready */ if(hadc->State == HAL_ADC_STATE_EOC_REG) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ; } /* Disable interruption if no further conversion upcoming injected */ /* external trigger or by automatic injected conversion with regular */ /* group having no further conversion upcoming (same conditions as */ /* regular group interruption disabling above). */ if(__HAL_ADC_IS_SOFTWARE_START_INJECTED(hadc) || (HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) && (__HAL_ADC_IS_SOFTWARE_START_REGULAR(hadc) && (hadc->Init.ContinuousConvMode == DISABLE) ) ) ) { /* Disable ADC end of single conversion interrupt */ __HAL_ADC_DISABLE_IT(hadc, ADC_IT_JEOC); } /* Conversion complete callback */ HAL_ADCEx_InjectedConvCpltCallback(hadc); /* Clear injected group conversion flag (and regular conversion flag raised simultaneously) */ __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_JSTRT | ADC_FLAG_JEOC | ADC_FLAG_EOC)); } /* ========== 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; /* Clear the ADCx's Analog watchdog flag */ __HAL_ADC_CLEAR_FLAG(hadc,ADC_FLAG_AWD); /* Level out of window callback */ HAL_ADC_LevelOutOfWindowCallback(hadc); } } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Perform an ADC automatic self-calibration * Calibration prerequisite: ADC must be disabled (execute this * function before HAL_ADC_Start() or after HAL_ADC_Stop() ). * @param hadc: ADC handle * @param SingleDiff: Selection of single-ended or differential input * This parameter can be one of the following values: * @arg ADC_SINGLE_ENDED: Channel in mode input single ended * @arg ADC_DIFFERENTIAL_ENDED: Channel in mode input differential ended * @retval HAL status */ HAL_StatusTypeDef HAL_ADCEx_Calibration_Start(ADC_HandleTypeDef* hadc, uint32_t SingleDiff) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; uint32_t tickstart; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_SINGLE_DIFFERENTIAL(SingleDiff)); /* Process locked */ __HAL_LOCK(hadc); /* Calibration prerequisite: ADC must be disabled. */ /* Disable the ADC (if not already disabled) */ tmpHALStatus = ADC_Disable(hadc); /* Check if ADC is effectively disabled */ if (tmpHALStatus != HAL_ERROR) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_READY; /* Select calibration mode single ended or differential ended */ hadc->Instance->CR &= (~ADC_CR_ADCALDIF); if (SingleDiff == ADC_DIFFERENTIAL_ENDED) { hadc->Instance->CR |= ADC_CR_ADCALDIF; } /* Start ADC calibration */ hadc->Instance->CR |= ADC_CR_ADCAL; tickstart = HAL_GetTick(); /* Wait for calibration completion */ while(HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADCAL)) { if((HAL_GetTick()-tickstart) > ADC_CALIBRATION_TIMEOUT) { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; /* Process unlocked */ __HAL_UNLOCK(hadc); return HAL_ERROR; } } } else { /* Update ADC state machine to error */ tmpHALStatus = HAL_ERROR; } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Perform an ADC automatic self-calibration * Calibration prerequisite: ADC must be disabled (execute this * function before HAL_ADC_Start() or after HAL_ADC_Stop() ). * During calibration process, ADC is enabled. ADC is let enabled at * the completion of this function. * @param hadc: ADC handle * @retval HAL status */ HAL_StatusTypeDef HAL_ADCEx_Calibration_Start(ADC_HandleTypeDef* hadc) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; uint32_t WaitLoopIndex = 0; uint32_t tickstart; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); /* Process locked */ __HAL_LOCK(hadc); /* 1. Calibration prerequisite: */ /* - ADC must be disabled for at least two ADC clock cycles in disable */ /* mode before ADC enable */ /* Stop potential conversion on going, on regular and injected groups */ /* Disable ADC peripheral */ tmpHALStatus = ADC_ConversionStop_Disable(hadc); /* Check if ADC is effectively disabled */ if (tmpHALStatus != HAL_ERROR) { /* Wait two ADC clock cycles */ while(WaitLoopIndex < ADC_CYCLE_WORST_CASE_CPU_CYCLES *2) { WaitLoopIndex++; } /* 2. Enable the ADC peripheral */ ADC_Enable(hadc); /* 3. Resets ADC calibration registers */ hadc->Instance->CR2 |= ADC_CR2_RSTCAL; tickstart = HAL_GetTick(); /* Wait for calibration reset completion */ while(HAL_IS_BIT_SET(hadc->Instance->CR2, ADC_CR2_RSTCAL)) { if((HAL_GetTick()-tickstart) > ADC_CALIBRATION_TIMEOUT) { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; /* Process unlocked */ __HAL_UNLOCK(hadc); return HAL_ERROR; } } /* 4. Start ADC calibration */ hadc->Instance->CR2 |= ADC_CR2_CAL; tickstart = HAL_GetTick(); /* Wait for calibration completion */ while(HAL_IS_BIT_SET(hadc->Instance->CR2, ADC_CR2_CAL)) { if((HAL_GetTick()-tickstart) > ADC_CALIBRATION_TIMEOUT) { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; /* Process unlocked */ __HAL_UNLOCK(hadc); return HAL_ERROR; } } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Get the calibration factor from automatic conversion result * @param hadc: ADC handle * @param SingleDiff: Selection of single-ended or differential input * This parameter can be one of the following values: * @arg ADC_SINGLE_ENDED: Channel in mode input single ended * @arg ADC_DIFFERENTIAL_ENDED: Channel in mode input differential ended * @retval Converted value */ uint32_t HAL_ADCEx_Calibration_GetValue(ADC_HandleTypeDef* hadc, uint32_t SingleDiff) { /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_SINGLE_DIFFERENTIAL(SingleDiff)); /* Return the selected ADC calibration value */ if (SingleDiff == ADC_DIFFERENTIAL_ENDED) { return __HAL_ADC_CALFACT_DIFF_GET(hadc->Instance->CALFACT); } else { return ((hadc->Instance->CALFACT) & 0x0000007F); } } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Set the calibration factor to overwrite automatic conversion result. ADC must be enabled and no conversion on going. * @param hadc: ADC handle * @param SingleDiff: Selection of single-ended or differential input * This parameter can be one of the following values: * @arg ADC_SINGLE_ENDED: Channel in mode input single ended * @arg ADC_DIFFERENTIAL_ENDED: Channel in mode input differential ended * @param CalibrationFactor: Calibration factor (coded on 7 bits maximum) * @retval HAL state */ HAL_StatusTypeDef HAL_ADCEx_Calibration_SetValue(ADC_HandleTypeDef* hadc, uint32_t SingleDiff, uint32_t CalibrationFactor) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_SINGLE_DIFFERENTIAL(SingleDiff)); assert_param(IS_ADC_CALFACT(CalibrationFactor)); /* Process locked */ __HAL_LOCK(hadc); /* Verification of hardware constraints before modifying the calibration */ /* factors register: ADC must be enabled, no conversion on going. */ if ( (__HAL_ADC_IS_ENABLED(hadc) != RESET) && (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR_INJECTED(hadc) == RESET) ) { /* Set the selected ADC calibration value */ if (SingleDiff == ADC_DIFFERENTIAL_ENDED) { hadc->Instance->CALFACT &= ~ADC_CALFACT_CALFACT_D; hadc->Instance->CALFACT |= __HAL_ADC_CALFACT_DIFF_SET(CalibrationFactor); } else { hadc->Instance->CALFACT &= ~ADC_CALFACT_CALFACT_S; hadc->Instance->CALFACT |= CalibrationFactor; } } else { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; /* Update ADC state machine to error */ tmpHALStatus = HAL_ERROR; } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Enables ADC, starts conversion of injected group. * Interruptions enabled in this function: None. * @note: Case of multimode enabled (for devices with several ADCs): This * function must be called for ADC slave first, then ADC master. * For ADC slave, ADC is enabled only (conversion is not started). * For ADC master, ADC is enabled and multimode conversion is started. * @param hadc: ADC handle * @retval HAL status */ HAL_StatusTypeDef HAL_ADCEx_InjectedStart(ADC_HandleTypeDef* hadc) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); /* Process locked */ __HAL_LOCK(hadc); /* Enable the ADC peripheral */ tmpHALStatus = ADC_Enable(hadc); /* Start conversion if ADC is effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* Check if a regular conversion is ongoing */ if(hadc->State == HAL_ADC_STATE_BUSY_REG) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ; } /* Set ADC error code to none */ __HAL_ADC_CLEAR_ERRORCODE(hadc); /* Clear injected group conversion flag */ /* (To ensure of no unknown state from potential previous ADC operations) */ __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_JEOC | ADC_FLAG_JEOS)); /* Enable conversion of injected group, if automatic injected conversion */ /* is disabled. */ /* If software start has been selected, conversion starts immediately. */ /* If external trigger has been selected, conversion will start at next */ /* trigger event. */ /* Case of multimode enabled (for devices with several ADCs): if ADC is */ /* slave, ADC is enabled only (conversion is not started). If ADC is */ /* master, ADC is enabled and conversion is started. */ if ( HAL_IS_BIT_CLR(hadc->Instance->CFGR, ADC_CFGR_JAUTO) && __HAL_ADC_NONMULTIMODE_OR_MULTIMODEMASTER(hadc) ) { hadc->Instance->CR |= ADC_CR_JADSTART; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Enables ADC, starts conversion of injected group. * Interruptions enabled in this function: None. * @param hadc: ADC handle * @retval HAL status */ HAL_StatusTypeDef HAL_ADCEx_InjectedStart(ADC_HandleTypeDef* hadc) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); /* Process locked */ __HAL_LOCK(hadc); /* Enable the ADC peripheral */ tmpHALStatus = ADC_Enable(hadc); /* Start conversion if ADC is effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* Check if a regular conversion is ongoing */ if(hadc->State == HAL_ADC_STATE_BUSY_REG) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ; } /* Set ADC error code to none */ __HAL_ADC_CLEAR_ERRORCODE(hadc); /* Clear injected group conversion flag */ /* (To ensure of no unknown state from potential previous ADC operations) */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JEOC); /* Start conversion of injected group if software start has been selected */ /* and if automatic injected conversion is disabled. */ /* If external trigger has been selected, conversion will start at next */ /* trigger event. */ /* If automatic injected conversion is enabled, conversion will start */ /* after next regular group conversion. */ if (__HAL_ADC_IS_SOFTWARE_START_INJECTED(hadc) && HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) ) { /* Enable ADC software conversion for injected channels */ hadc->Instance->CR2 |= ADC_CR2_JSWSTART; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Stop conversion of injected channels. Disable ADC peripheral if * no regular conversion is on going. * @note If ADC must be disabled with this function and if regular conversion * is on going, function HAL_ADC_Stop must be used preliminarily. * @note In case of auto-injection mode, HAL_ADC_Stop must be used. * @note: Case of multimode enabled (for devices with several ADCs): This * function must be called for ADC master first, then ADC slave. * For ADC master, conversion is stopped and ADC is disabled. * For ADC slave, ADC is disabled only (conversion stop of ADC master * has already stopped conversion of ADC slave). * @param hadc: ADC handle * @retval None */ HAL_StatusTypeDef HAL_ADCEx_InjectedStop(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 injected group only. */ tmpHALStatus = ADC_ConversionStop(hadc, INJECTED_GROUP); /* Disable ADC peripheral if injected conversions are effectively stopped */ /* and if no conversion on the other group (regular group) is intended to */ /* continue. */ if (tmpHALStatus != HAL_ERROR) { if((__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET) && (hadc->State != HAL_ADC_STATE_BUSY_REG) && (hadc->State != HAL_ADC_STATE_BUSY_INJ_REG) ) { /* 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; } } /* Conversion on injected group is stopped, but ADC not disabled since */ /* conversion on regular group is still running. */ else { hadc->State = HAL_ADC_STATE_BUSY_REG; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Stop conversion of injected channels. Disable ADC peripheral if * no regular conversion is on going. * @note If ADC must be disabled with this function and if regular conversion * is on going, function HAL_ADC_Stop must be used preliminarily. * @note In case of auto-injection mode, HAL_ADC_Stop must be used. * @param hadc: ADC handle * @retval None */ HAL_StatusTypeDef HAL_ADCEx_InjectedStop(ADC_HandleTypeDef* hadc) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); /* Process locked */ __HAL_LOCK(hadc); /* Stop potential conversion and disable ADC peripheral */ /* Conditioned to: */ /* - No conversion on the other group (regular group) is intended to */ /* continue (injected and regular groups stop conversion and ADC disable */ /* are common) */ /* - In case of auto-injection mode, HAL_ADC_Stop must be used. */ if((hadc->State != HAL_ADC_STATE_BUSY_REG) && (hadc->State != HAL_ADC_STATE_BUSY_INJ_REG) && HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) ) { /* Stop potential conversion on going, on regular and injected groups */ /* Disable ADC peripheral */ tmpHALStatus = ADC_ConversionStop_Disable(hadc); /* Check if ADC is effectively disabled */ if (tmpHALStatus != HAL_ERROR) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_READY; } } 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; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Wait for injected group conversion to be completed. * @param hadc: ADC handle * @param Timeout: Timeout value in millisecond. * @retval HAL status */ HAL_StatusTypeDef HAL_ADCEx_InjectedPollForConversion(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_JEOS; } /* If end of conversion selected to end of each conversion */ else /* EOC_SINGLE_CONV */ { tmp_Flag_EOC = (ADC_FLAG_JEOC | ADC_FLAG_JEOS); } /* 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 injected group if low power feature */ /* "Auto Wait" is disabled, to not interfere with this feature until data */ /* register is read using function HAL_ADC_GetValue(). */ if (hadc->Init.LowPowerAutoWait == DISABLE) { /* Clear injected group conversion flag */ __HAL_ADC_CLEAR_FLAG(hadc,(ADC_FLAG_JEOC | ADC_FLAG_JEOS)); } /* Update ADC state machine */ if(hadc->State != HAL_ADC_STATE_EOC_INJ_REG) { /* Check if a conversion is ready on regular group */ if(hadc->State == HAL_ADC_STATE_EOC_REG) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ; } } /* Return ADC state */ return HAL_OK; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Wait for injected group conversion to be completed. * @param hadc: ADC handle * @param Timeout: Timeout value in millisecond. * @retval HAL status */ HAL_StatusTypeDef HAL_ADCEx_InjectedPollForConversion(ADC_HandleTypeDef* hadc, uint32_t Timeout) { uint32_t tickstart; /* Variables for polling in case of scan mode enabled */ uint32_t Conversion_Timeout_CPU_cycles_max =0; uint32_t Conversion_Timeout_CPU_cycles =0; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); /* Get timeout */ tickstart = HAL_GetTick(); /* Polling for end of conversion: differentiation if single/sequence */ /* conversion. */ /* For injected group, flag JEOC is set only at the end of the sequence, */ /* not for each conversion within the sequence. */ /* - If single conversion for injected group (scan mode disabled or */ /* InjectedNbrOfConversion ==1), flag jEOC is used to determine the */ /* conversion completion. */ /* - If sequence conversion for injected group (scan mode enabled and */ /* InjectedNbrOfConversion >=2), flag JEOC is set only at the end of the */ /* sequence. */ /* To poll for each conversion, the maximum conversion time is computed */ /* from ADC conversion time (selected sampling time + conversion time of */ /* 12.5 ADC clock cycles) and APB2/ADC clock prescalers (depending on */ /* settings, conversion time range can be from 28 to 32256 CPU cycles). */ if ((hadc->Instance->JSQR & ADC_JSQR_JL) == RESET) { /* Wait until End of Conversion flag is raised */ while(HAL_IS_BIT_CLR(hadc->Instance->SR, ADC_FLAG_JEOC)) { /* 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; } } } } else { /* Calculation of CPU cycles corresponding to ADC conversion cycles. */ /* Retrieve ADC clock prescaler and ADC maximum conversion cycles on all */ /* channels. */ Conversion_Timeout_CPU_cycles_max = __HAL_ADC_CLOCK_PRECSALER_RANGE() ; Conversion_Timeout_CPU_cycles_max *= __HAL_ADC_CONVCYCLES_MAX_RANGE(hadc); /* Maximum conversion cycles taking in account offset of 34 CPU cycles: */ /* number of CPU cycles for processing of conversion cycles estimation. */ Conversion_Timeout_CPU_cycles = 34; /* Poll with maximum conversion time */ while(Conversion_Timeout_CPU_cycles < Conversion_Timeout_CPU_cycles_max) { /* 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; } } Conversion_Timeout_CPU_cycles ++; } } /* Clear injected group conversion flag (and regular conversion flag raised simultaneously) */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JSTRT | ADC_FLAG_JEOC | ADC_FLAG_EOC); /* Check if a regular conversion is ready */ if(hadc->State == HAL_ADC_STATE_EOC_REG) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_EOC_INJ; } /* Return ADC state */ return HAL_OK; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Enables ADC, starts conversion of injected group with interruption. * Interruptions enabled in this function: JEOC (end of conversion), * overrun (if available). * Each of these interruptions has its dedicated callback function. * @note: Case of multimode enabled (for devices with several ADCs): This * function must be called for ADC slave first, then ADC master. * For ADC slave, ADC is enabled only (conversion is not started). * For ADC master, ADC is enabled and multimode conversion is started. * @param hadc: ADC handle * @retval HAL status. */ HAL_StatusTypeDef HAL_ADCEx_InjectedStart_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); /* Enable the ADC peripheral */ tmpHALStatus = ADC_Enable(hadc); /* Start conversion if ADC is effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* Check if a regular conversion is ongoing */ if(hadc->State == HAL_ADC_STATE_BUSY_REG) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ; } /* Set ADC error code to none */ __HAL_ADC_CLEAR_ERRORCODE(hadc); /* Clear injected group conversion flag */ /* (To ensure of no unknown state from potential previous ADC operations) */ __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_JEOC | ADC_FLAG_JEOS)); /* Enable ADC Injected context queue overflow interrupt if this feature */ /* is enabled. */ if ((hadc->Instance->CFGR & ADC_CFGR_JQM) != RESET) { __HAL_ADC_ENABLE_IT(hadc, ADC_FLAG_JQOVF); } /* Enable ADC end of conversion interrupt */ switch(hadc->Init.EOCSelection) { case EOC_SEQ_CONV: __HAL_ADC_DISABLE_IT(hadc, ADC_IT_JEOC); __HAL_ADC_ENABLE_IT(hadc, ADC_IT_JEOS); break; /* case EOC_SINGLE_CONV */ default: __HAL_ADC_ENABLE_IT(hadc, ADC_IT_JEOC | ADC_IT_JEOS); break; } /* Enable conversion of injected group, if automatic injected conversion */ /* is disabled. */ /* If software start has been selected, conversion starts immediately. */ /* If external trigger has been selected, conversion will start at next */ /* trigger event. */ /* Case of multimode enabled (for devices with several ADCs): if ADC is */ /* slave, ADC is enabled only (conversion is not started). If ADC is */ /* master, ADC is enabled and conversion is started. */ if ( HAL_IS_BIT_CLR(hadc->Instance->CFGR, ADC_CFGR_JAUTO) && __HAL_ADC_NONMULTIMODE_OR_MULTIMODEMASTER(hadc) ) { hadc->Instance->CR |= ADC_CR_JADSTART; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Enables ADC, starts conversion of injected group with interruption. * Interruptions enabled in this function: JEOC (end of conversion), * overrun (if available). * Each of these interruptions has its dedicated callback function. * @param hadc: ADC handle * @retval HAL status. */ HAL_StatusTypeDef HAL_ADCEx_InjectedStart_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); /* Enable the ADC peripheral */ tmpHALStatus = ADC_Enable(hadc); /* Start conversion if ADC is effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* Check if a regular conversion is ongoing */ if(hadc->State == HAL_ADC_STATE_BUSY_REG) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ; } /* Set ADC error code to none */ __HAL_ADC_CLEAR_ERRORCODE(hadc); /* Clear injected group conversion flag */ /* (To ensure of no unknown state from potential previous ADC operations) */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JEOC); /* Enable end of conversion interrupt for injected channels */ __HAL_ADC_ENABLE_IT(hadc, ADC_IT_JEOC); /* Start conversion of injected group if software start has been selected */ /* and if automatic injected conversion is disabled. */ /* If external trigger has been selected, conversion will start at next */ /* trigger event. */ /* If automatic injected conversion is enabled, conversion will start */ /* after next regular group conversion. */ if (__HAL_ADC_IS_SOFTWARE_START_INJECTED(hadc) && HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) ) { /* Enable ADC software conversion for injected channels */ hadc->Instance->CR2 |= ADC_CR2_JSWSTART; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Stop conversion of injected channels, disable interruption of * end-of-conversion. Disable ADC peripheral if no regular conversion * is on going. * @note If ADC must be disabled with this function and if regular conversion * is on going, function HAL_ADC_Stop must be used preliminarily. * @note: Case of multimode enabled (for devices with several ADCs): This * function must be called for ADC master first, then ADC slave. * For ADC master, conversion is stopped and ADC is disabled. * For ADC slave, ADC is disabled only (conversion stop of ADC master * has already stopped conversion of ADC slave). * @note In case of auto-injection mode, HAL_ADC_Stop must be used. * @param hadc: ADC handle * @retval None */ HAL_StatusTypeDef HAL_ADCEx_InjectedStop_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 injected group only. */ tmpHALStatus = ADC_ConversionStop(hadc, INJECTED_GROUP); /* Disable ADC peripheral if injected conversions are effectively stopped */ /* and if no conversion on the other group (regular group) is intended to */ /* continue. */ if (tmpHALStatus != HAL_ERROR) { /* Disable ADC end of conversion interrupt for injected channels */ __HAL_ADC_DISABLE_IT(hadc, (ADC_IT_JEOC | ADC_IT_JEOS)); if((__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET) && (hadc->State != HAL_ADC_STATE_BUSY_REG) && (hadc->State != HAL_ADC_STATE_BUSY_INJ_REG) ) { /* 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; } } /* Conversion on injected group is stopped, but ADC not disabled since */ /* conversion on regular group is still running. */ else { hadc->State = HAL_ADC_STATE_BUSY_REG; } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Stop conversion of injected channels, disable interruption of * end-of-conversion. Disable ADC peripheral if no regular conversion * is on going. * @note If ADC must be disabled with this function and if regular conversion * is on going, function HAL_ADC_Stop must be used preliminarily. * @param hadc: ADC handle * @retval None */ HAL_StatusTypeDef HAL_ADCEx_InjectedStop_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); /* Stop potential conversion and disable ADC peripheral */ /* Conditioned to: */ /* - No conversion on the other group (regular group) is intended to */ /* continue (injected and regular groups stop conversion and ADC disable */ /* are common) */ /* - In case of auto-injection mode, HAL_ADC_Stop must be used. */ if((hadc->State != HAL_ADC_STATE_BUSY_REG) && (hadc->State != HAL_ADC_STATE_BUSY_INJ_REG) && HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) ) { /* Stop potential conversion on going, on regular and injected groups */ /* Disable ADC peripheral */ tmpHALStatus = ADC_ConversionStop_Disable(hadc); /* Check if ADC is effectively disabled */ if (tmpHALStatus != HAL_ERROR) { /* Disable ADC end of conversion interrupt for injected channels */ __HAL_ADC_DISABLE_IT(hadc, ADC_IT_JEOC); /* Change ADC state */ hadc->State = HAL_ADC_STATE_READY; } } 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; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) /** * @brief Enables ADC, starts conversion of regular group and transfers result * through DMA. * Multimode must have been previously configured using * HAL_ADCEx_MultiModeConfigChannel() function. * Interruptions enabled in this function: * overrun, DMA half transfer, DMA transfer complete. * Each of these interruptions has its dedicated callback function. * @note: ADC slave can be enabled preliminarily using single-mode * HAL_ADC_Start() function. * @param hadc: ADC handle of ADC master (handle of ADC slave must not be used) * @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_ADCEx_MultiModeStart_DMA(ADC_HandleTypeDef* hadc, uint32_t* pData, uint32_t Length) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; ADC_HandleTypeDef tmphadcSlave; ADC_Common_TypeDef *tmpADC_Common; /* Check the parameters */ assert_param(IS_ADC_MULTIMODE_MASTER_INSTANCE(hadc->Instance)); assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode)); assert_param(IS_ADC_EXTTRIG_EDGE(hadc->Init.ExternalTrigConvEdge)); assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DMAContinuousRequests)); /* Process locked */ __HAL_LOCK(hadc); /* Set a temporary handle of the ADC slave associated to the ADC master */ /* (Depending on STM32F3 product, there may be up to 2 ADC slaves) */ __HAL_ADC_MULTI_SLAVE(hadc, &tmphadcSlave); if (tmphadcSlave.Instance == NULL) { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; /* Process unlocked */ __HAL_UNLOCK(hadc); return HAL_ERROR; } /* Enable the ADC peripherals: master and slave (in case if not already */ /* enabled previously) */ tmpHALStatus = ADC_Enable(hadc); if (tmpHALStatus != HAL_ERROR) { tmpHALStatus = ADC_Enable(&tmphadcSlave); } /* Start conversion all ADCs of multimode are effectively enabled */ if (tmpHALStatus != HAL_ERROR) { /* State machine update (ADC master): Check if an injected conversion is */ /* ongoing. */ if(hadc->State == HAL_ADC_STATE_BUSY_INJ) { /* Change ADC state */ hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; } else { /* 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 ; /* Pointer to the common control register to which is belonging hadc */ /* (Depending on STM32F3 product, there may be up to 4 ADC and 2 common */ /* control registers) */ tmpADC_Common = __HAL_ADC_COMMON_REGISTER(hadc); /* 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); /* Start the DMA channel */ HAL_DMA_Start_IT(hadc->DMA_Handle, (uint32_t)&tmpADC_Common->CDR, (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); /* Return function status */ return tmpHALStatus; } /** * @brief Stop ADC conversion of regular group (and injected channels in * case of auto_injection mode), disable ADC DMA transfer, disable * ADC peripheral. * @note Multimode is kept enabled after this function. To disable multimode * (set with HAL_ADCEx_MultiModeConfigChannel(), ADC must be * reinitialized using HAL_ADC_Init() or HAL_ADC_ReInit(). * @note In case of DMA configured in circular mode, function * HAL_ADC_Stop_DMA must be called after this function with handle of * ADC slave, to properly disable the DMA channel. * @param hadc: ADC handle of ADC master (handle of ADC slave must not be used) * @retval None */ HAL_StatusTypeDef HAL_ADCEx_MultiModeStop_DMA(ADC_HandleTypeDef* hadc) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; uint32_t tickstart; ADC_HandleTypeDef tmphadcSlave; ADC_Common_TypeDef *tmpADC_Common; /* Check the parameters */ assert_param(IS_ADC_MULTIMODE_MASTER_INSTANCE(hadc->Instance)); /* Process locked */ __HAL_LOCK(hadc); /* 1. Stop potential multimode conversion on going, on regular and injected groups */ tmpHALStatus = ADC_ConversionStop(hadc, REGULAR_INJECTED_GROUP); /* Disable ADC peripheral if conversions are effectively stopped */ if (tmpHALStatus != HAL_ERROR) { /* Set a temporary handle of the ADC slave associated to the ADC master */ /* (Depending on STM32F3 product, there may be up to 2 ADC slaves) */ __HAL_ADC_MULTI_SLAVE(hadc, &tmphadcSlave); if (tmphadcSlave.Instance == NULL) { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; /* Process unlocked */ __HAL_UNLOCK(hadc); return HAL_ERROR; } /* Procedure to disable the ADC peripheral: wait for conversions */ /* effectively stopped (ADC master and ADC slave), then disable ADC */ /* 1. Wait until ADSTP=0 for ADC master and ADC slave*/ tickstart = HAL_GetTick(); while(__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) || __HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(&tmphadcSlave) ) { if((HAL_GetTick()-tickstart) > ADC_STOP_CONVERSION_TIMEOUT) { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; /* Process unlocked */ __HAL_UNLOCK(hadc); return HAL_ERROR; } } /* Pointer to the common control register to which is belonging hadc */ /* (Depending on STM32F3 product, there may be up to 4 ADC and 2 common */ /* control registers) */ tmpADC_Common = __HAL_ADC_COMMON_REGISTER(hadc); /* Reset configuration of ADC DMA continuous request for dual mode */ tmpADC_Common->CCR &= ~ADC_CCR_DMACFG; /* Disable the DMA channel (in case of DMA in circular mode or stop while */ /* while DMA transfer is on going) */ /* Note: DMA channel of ADC slave should stopped after this function with */ /* function HAL_ADC_Stop_DMA. */ 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 peripherals: master and slave */ /* Update "tmpHALStatus" only if DMA channel disabling passed, to keep in */ /* memory a potential failing status. */ if (tmpHALStatus != HAL_ERROR) { /* Check if ADC are effectively disabled */ if ((ADC_Disable(hadc) != HAL_ERROR) && (ADC_Disable(&tmphadcSlave) != HAL_ERROR) ) { tmpHALStatus = HAL_OK; /* Change ADC state (ADC master) */ hadc->State = HAL_ADC_STATE_READY; } } else { ADC_Disable(hadc); ADC_Disable(&tmphadcSlave); } } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } /** * @brief Returns the last ADC Master&Slave regular conversions results data * in the selected multi mode. * @param hadc: ADC handle of ADC master (handle of ADC slave must not be used) * @retval The converted data value. */ uint32_t HAL_ADCEx_MultiModeGetValue(ADC_HandleTypeDef* hadc) { ADC_Common_TypeDef *tmpADC_Common; /* Check the parameters */ assert_param(IS_ADC_MULTIMODE_MASTER_INSTANCE(hadc->Instance)); /* Pointer to the common control register to which is belonging hadc */ /* (Depending on STM32F3 product, there may be up to 4 ADC and 2 common */ /* control registers) */ tmpADC_Common = __HAL_ADC_COMMON_REGISTER(hadc); /* Return the multi mode conversion value */ return tmpADC_Common->CDR; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Get ADC injected group conversion result. * @param hadc: ADC handle * @param InjectedRank: the converted ADC injected rank. * This parameter can be one of the following values: * @arg ADC_INJECTED_RANK_1: Injected Channel1 selected * @arg ADC_INJECTED_RANK_2: Injected Channel2 selected * @arg ADC_INJECTED_RANK_3: Injected Channel3 selected * @arg ADC_INJECTED_RANK_4: Injected Channel4 selected * @retval None */ uint32_t HAL_ADCEx_InjectedGetValue(ADC_HandleTypeDef* hadc, uint32_t InjectedRank) { /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_INJECTED_RANK(InjectedRank)); /* Clear injected group conversion flag to have similar behaviour as */ /* regular group: reading data register also clears end of conversion flag, */ /* and in case of usage of ADC feature "LowPowerAutoWait". */ __HAL_ADC_CLEAR_FLAG(hadc,(ADC_FLAG_JEOC | ADC_FLAG_JEOS)); /* Return ADC converted value */ switch(InjectedRank) { case ADC_INJECTED_RANK_4: return hadc->Instance->JDR4; case ADC_INJECTED_RANK_3: return hadc->Instance->JDR3; case ADC_INJECTED_RANK_2: return hadc->Instance->JDR2; case ADC_INJECTED_RANK_1: default: return hadc->Instance->JDR1; } } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Get ADC injected group conversion result. * @param hadc: ADC handle * @param InjectedRank: the converted ADC injected rank. * This parameter can be one of the following values: * @arg ADC_INJECTED_RANK_1: Injected Channel1 selected * @arg ADC_INJECTED_RANK_2: Injected Channel2 selected * @arg ADC_INJECTED_RANK_3: Injected Channel3 selected * @arg ADC_INJECTED_RANK_4: Injected Channel4 selected * @retval None */ uint32_t HAL_ADCEx_InjectedGetValue(ADC_HandleTypeDef* hadc, uint32_t InjectedRank) { /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_INJECTED_RANK(InjectedRank)); /* Clear injected group conversion flag to have similar behaviour as */ /* regular group: reading data register also clears end of conversion flag. */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JEOC); /* Return ADC converted value */ switch(InjectedRank) { case ADC_INJECTED_RANK_4: return hadc->Instance->JDR4; case ADC_INJECTED_RANK_3: return hadc->Instance->JDR3; case ADC_INJECTED_RANK_2: return hadc->Instance->JDR2; case ADC_INJECTED_RANK_1: default: return hadc->Instance->JDR1; } } #endif /* STM32F373xC || STM32F378xx */ /** * @brief Injected conversion complete callback in non blocking mode * @param hadc: ADC handle * @retval None */ __weak void HAL_ADCEx_InjectedConvCpltCallback(ADC_HandleTypeDef* hadc) { /* NOTE : This function Should not be modified, when the callback is needed, the HAL_ADCEx_InjectedConvCpltCallback could be implemented in the user file */ } #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Injected context queue overflow flag callback. * @note: This callback is called if injected context queue is enabled (parameter "QueueInjectedContext" in injected channel configuration) and if a new injected context is set when queue is full (maximum 2 contexts). * @param hadc: ADC handle * @retval None */ __weak void HAL_ADCEx_InjectedQueueOverflowCallback(ADC_HandleTypeDef* hadc) { /* NOTE : This function should not be modified. When the callback is needed, function HAL_ADCEx_InjectedQueueOverflowCallback must be implemented in the user file. */ } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ /** * @} */ /** @defgroup ADCEx_Group3 Extended Peripheral Control functions * @brief Extended Peripheral Control functions * @verbatim =============================================================================== ##### Peripheral Control functions ##### =============================================================================== [..] This section provides functions allowing to: (+) Configure channels on regular group (+) Configure channels on injected group (+) Configure multimode (+) Configure the analog watchdog @endverbatim * @{ */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Configures the the selected channel to be linked to the regular * group. * @note In case of usage of internal measurement channels: * Vbat/VrefInt/TempSensor. * The recommended sampling time is at least: * - For devices STM32F37x: 17.1us for temperature sensor * - For the other STM32F3 devices: 2.2us for each of channels * Vbat/VrefInt/TempSensor. * 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 ADC channel for regular group. * @retval HAL status */ HAL_StatusTypeDef HAL_ADC_ConfigChannel(ADC_HandleTypeDef* hadc, ADC_ChannelConfTypeDef* sConfig) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; ADC_Common_TypeDef *tmpADC_Common; ADC_HandleTypeDef tmphadcSharingSameCommonRegister; uint32_t tmpOffsetShifted; uint32_t WaitLoopIndex = 0; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_REGULAR_RANK(sConfig->Rank)); assert_param(IS_ADC_SAMPLE_TIME(sConfig->SamplingTime)); assert_param(IS_ADC_SINGLE_DIFFERENTIAL(sConfig->SingleDiff)); assert_param(IS_ADC_OFFSET_NUMBER(sConfig->OffsetNumber)); assert_param(IS_ADC_RANGE(__HAL_ADC_GET_RESOLUTION(hadc), sConfig->Offset)); /* Verification of channel number: Channels 1 to 14 are available in */ /* differential mode. Channels 15, 16, 17, 18 can be used only in */ /* single-ended mode. */ if (sConfig->SingleDiff != ADC_DIFFERENTIAL_ENDED) { assert_param(IS_ADC_CHANNEL(sConfig->Channel)); } else { assert_param(IS_ADC_DIFF_CHANNEL(sConfig->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: */ /* - Channel number */ /* - Channel rank */ if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET) { /* Regular sequence configuration */ /* For Rank 1 to 4 */ if (sConfig->Rank < 5) { /* Clear the old SQx bits for the selected rank */ hadc->Instance->SQR1 &= ~__HAL_ADC_SQR1_RK(ADC_SQR2_SQ5, sConfig->Rank); /* Set the SQx bits for the selected rank */ hadc->Instance->SQR1 |= __HAL_ADC_SQR1_RK(sConfig->Channel, sConfig->Rank); } /* For Rank 5 to 9 */ else if (sConfig->Rank < 10) { /* Clear the old SQx bits for the selected rank */ hadc->Instance->SQR2 &= ~__HAL_ADC_SQR2_RK(ADC_SQR2_SQ5, sConfig->Rank); /* Set the SQx bits for the selected rank */ hadc->Instance->SQR2 |= __HAL_ADC_SQR2_RK(sConfig->Channel, sConfig->Rank); } /* For Rank 10 to 14 */ else if (sConfig->Rank < 15) { /* Clear the old SQx bits for the selected rank */ hadc->Instance->SQR3 &= ~__HAL_ADC_SQR3_RK(ADC_SQR3_SQ10, sConfig->Rank); /* Set the SQx bits for the selected rank */ hadc->Instance->SQR3 |= __HAL_ADC_SQR3_RK(sConfig->Channel, sConfig->Rank); } /* For Rank 15 to 16 */ else { /* Clear the old SQx bits for the selected rank */ hadc->Instance->SQR4 &= ~__HAL_ADC_SQR4_RK(ADC_SQR4_SQ15, sConfig->Rank); /* Set the SQx bits for the selected rank */ hadc->Instance->SQR4 |= __HAL_ADC_SQR4_RK(sConfig->Channel, sConfig->Rank); } /* 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 sampling time */ /* - Channel offset */ if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR_INJECTED(hadc) == RESET) { /* Channel sampling time configuration */ /* For channels 10 to 18 */ if (sConfig->Channel > ADC_CHANNEL_10) { /* Clear the old sample time */ hadc->Instance->SMPR2 &= ~__HAL_ADC_SMPR2(ADC_SMPR1_SMP0, sConfig->Channel); /* Set the new sample time */ hadc->Instance->SMPR2 |= __HAL_ADC_SMPR2(sConfig->SamplingTime, sConfig->Channel); } else /* For channels 0 to 9 */ { /* Clear the old sample time */ hadc->Instance->SMPR1 &= ~__HAL_ADC_SMPR1(ADC_SMPR2_SMP10, sConfig->Channel); /* Set the new sample time */ hadc->Instance->SMPR1 |= __HAL_ADC_SMPR1(sConfig->SamplingTime, sConfig->Channel); } /* Configure the offset: offset enable/disable, channel, offset value */ /* Shift the offset in function of the selected ADC resolution. */ /* Offset has to be left-aligned on bit 11, the LSB (right bits) are set to 0 */ tmpOffsetShifted = __HAL_ADC_OFFSET_SHIFT_RESOLUTION(hadc, sConfig->Offset); switch (sConfig->OffsetNumber) { case ADC_OFFSET_1: /* Configure offset register 1: */ /* - Enable offset */ /* - Set channel number */ /* - Set offset value */ hadc->Instance->OFR1 &= ~( ADC_OFR1_OFFSET1_CH | ADC_OFR1_OFFSET1 ); hadc->Instance->OFR1 |= ( ADC_OFR1_OFFSET1_EN | __HAL_ADC_OFR_CHANNEL(sConfig->Channel) | tmpOffsetShifted ); break; case ADC_OFFSET_2: /* Configure offset register 2: */ /* - Enable offset */ /* - Set channel number */ /* - Set offset value */ hadc->Instance->OFR2 &= ~( ADC_OFR2_OFFSET2_CH | ADC_OFR2_OFFSET2 ); hadc->Instance->OFR2 |= ( ADC_OFR2_OFFSET2_EN | __HAL_ADC_OFR_CHANNEL(sConfig->Channel) | tmpOffsetShifted ); break; case ADC_OFFSET_3: /* Configure offset register 3: */ /* - Enable offset */ /* - Set channel number */ /* - Set offset value */ hadc->Instance->OFR3 &= ~( ADC_OFR3_OFFSET3_CH | ADC_OFR3_OFFSET3 ); hadc->Instance->OFR3 |= ( ADC_OFR3_OFFSET3_EN | __HAL_ADC_OFR_CHANNEL(sConfig->Channel) | tmpOffsetShifted ); break; case ADC_OFFSET_4: /* Configure offset register 1: */ /* - Enable offset */ /* - Set channel number */ /* - Set offset value */ hadc->Instance->OFR4 &= ~( ADC_OFR4_OFFSET4_CH | ADC_OFR4_OFFSET4 ); hadc->Instance->OFR4 |= ( ADC_OFR4_OFFSET4_EN | __HAL_ADC_OFR_CHANNEL(sConfig->Channel) | tmpOffsetShifted ); break; /* Case ADC_OFFSET_NONE */ default : /* Scan OFR1, OFR2, OFR3, OFR4 to check if the selected channel is enabled. If this is the case, offset OFRx is disabled. */ if (((hadc->Instance->OFR1) & ADC_OFR1_OFFSET1_CH) == __HAL_ADC_OFR_CHANNEL(sConfig->Channel)) { /* Disable offset OFR1*/ hadc->Instance->OFR1 &= ~ADC_OFR1_OFFSET1_EN; } if (((hadc->Instance->OFR2) & ADC_OFR2_OFFSET2_CH) == __HAL_ADC_OFR_CHANNEL(sConfig->Channel)) { /* Disable offset OFR2*/ hadc->Instance->OFR2 &= ~ADC_OFR2_OFFSET2_EN; } if (((hadc->Instance->OFR3) & ADC_OFR3_OFFSET3_CH) == __HAL_ADC_OFR_CHANNEL(sConfig->Channel)) { /* Disable offset OFR3*/ hadc->Instance->OFR3 &= ~ADC_OFR3_OFFSET3_EN; } if (((hadc->Instance->OFR4) & ADC_OFR4_OFFSET4_CH) == __HAL_ADC_OFR_CHANNEL(sConfig->Channel)) { /* Disable offset OFR4*/ hadc->Instance->OFR4 &= ~ADC_OFR4_OFFSET4_EN; } break; } } /* Parameters update conditioned to ADC state: */ /* Parameters that can be updated only when ADC is disabled: */ /* - Single or differential mode */ /* - Internal measurement channels: Vbat/VrefInt/TempSensor */ if (__HAL_ADC_IS_ENABLED(hadc) == RESET) { /* Configuration of differential mode */ if (sConfig->SingleDiff != ADC_DIFFERENTIAL_ENDED) { /* Disable differential mode (default mode: single-ended) */ hadc->Instance->DIFSEL &= ~(__HAL_ADC_DIFSEL_CHANNEL(sConfig->Channel)); } else { /* Enable differential mode */ hadc->Instance->DIFSEL |= __HAL_ADC_DIFSEL_CHANNEL(sConfig->Channel); /* Sampling time configuration of channel ADC_IN+1 (negative input) */ /* For channels 10 to 18 */ if (sConfig->Channel > ADC_CHANNEL_10) { /* Clear the old sample time */ hadc->Instance->SMPR2 &= ~__HAL_ADC_SMPR2(ADC_SMPR1_SMP0, (sConfig->Channel +1)); /* Set the new sample time */ hadc->Instance->SMPR2 |= __HAL_ADC_SMPR2(sConfig->SamplingTime, (sConfig->Channel +1)); } else /* For channels 0 to 9 */ { /* Clear the old sample time */ hadc->Instance->SMPR1 &= ~__HAL_ADC_SMPR1(ADC_SMPR2_SMP10, (sConfig->Channel +1)); /* Set the new sample time */ hadc->Instance->SMPR1 |= __HAL_ADC_SMPR1(sConfig->SamplingTime, (sConfig->Channel +1)); } } /* 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(). */ /* Configuration of common ADC parameters */ /* Pointer to the common control register to which is belonging hadc */ /* (Depending on STM32F3 product, there may be up to 4 ADC and 2 common */ /* control registers) */ tmpADC_Common = __HAL_ADC_COMMON_REGISTER(hadc); /* If the requested internal measurement path has already been enabled, */ /* bypass the configuration processing. */ if (( (sConfig->Channel == ADC_CHANNEL_TEMPSENSOR) && (HAL_IS_BIT_CLR(tmpADC_Common->CCR, ADC_CCR_TSEN)) ) || ( (sConfig->Channel == ADC_CHANNEL_VBAT) && (HAL_IS_BIT_CLR(tmpADC_Common->CCR, ADC_CCR_VBATEN)) ) || ( (sConfig->Channel == ADC_CHANNEL_VREFINT) && (HAL_IS_BIT_CLR(tmpADC_Common->CCR, ADC_CCR_VREFEN))) ) { /* Configuration of common ADC parameters (continuation) */ /* Set handle of the other ADC sharing the same common register */ __HAL_ADC_COMMON_ADC_OTHER(hadc, &tmphadcSharingSameCommonRegister); /* Software is allowed to change common parameters only when all ADCs */ /* of the common group are disabled. */ if ((__HAL_ADC_IS_ENABLED(hadc) == RESET) && ( (tmphadcSharingSameCommonRegister.Instance == NULL) || (__HAL_ADC_IS_ENABLED(&tmphadcSharingSameCommonRegister) == RESET) )) { /* If Channel_16 is selected, enable Temp. sensor measurement path */ /* Note: Temp. sensor internal channels available on ADC1 only */ if ((sConfig->Channel == ADC_CHANNEL_TEMPSENSOR) && (hadc->Instance == ADC1)) { tmpADC_Common->CCR |= ADC_CCR_TSEN; /* Delay for temperature sensor stabilization time */ while(WaitLoopIndex < ADC_TEMPSENSOR_DELAY_CPU_CYCLES) { WaitLoopIndex++; } } /* If Channel_17 is selected, enable VBAT measurement path */ /* Note: VBAT internal channels available on ADC1 only */ else if ((sConfig->Channel == ADC_CHANNEL_VBAT) && (hadc->Instance == ADC1)) { tmpADC_Common->CCR |= ADC_CCR_VBATEN; } /* If Channel_18 is selected, enable VREFINT measurement path */ /* Note: VrefInt internal channels available on all ADCs, but only */ /* one ADC is allowed to be connected to VrefInt at the same */ /* time. */ else if (sConfig->Channel == ADC_CHANNEL_VREFINT) { tmpADC_Common->CCR |= ADC_CCR_VREFEN; } } /* If the requested internal measurement path has already been */ /* enabled and other ADC of the common group are enabled, internal */ /* measurement paths cannot be enabled. */ else { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; tmpHALStatus = HAL_ERROR; } } } } /* 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; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Configures the the selected channel to be linked to the regular * group. * @note In case of usage of internal measurement channels: * Vbat/VrefInt/TempSensor. * The recommended sampling time is at least: * - For devices STM32F37x: 17.1us for temperature sensor * - For the other STM32F3 devices: 2.2us for each of channels * Vbat/VrefInt/TempSensor. * 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; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_CHANNEL(sConfig->Channel)); assert_param(IS_ADC_REGULAR_RANK(sConfig->Rank)); assert_param(IS_ADC_SAMPLE_TIME(sConfig->SamplingTime)); /* Process locked */ __HAL_LOCK(hadc); /* Regular sequence configuration */ /* For Rank 1 to 6 */ if (sConfig->Rank < 7) { /* Clear the old SQx bits for the selected rank */ hadc->Instance->SQR3 &= ~__HAL_ADC_SQR3_RK(ADC_SQR3_SQ1, sConfig->Rank); /* Set the SQx bits for the selected rank */ hadc->Instance->SQR3 |= __HAL_ADC_SQR3_RK(sConfig->Channel, sConfig->Rank); } /* For Rank 7 to 12 */ else if (sConfig->Rank < 13) { /* Clear the old SQx bits for the selected rank */ hadc->Instance->SQR2 &= ~__HAL_ADC_SQR2_RK(ADC_SQR2_SQ7, sConfig->Rank); /* Set the SQx bits for the selected rank */ hadc->Instance->SQR2 |= __HAL_ADC_SQR2_RK(sConfig->Channel, sConfig->Rank); } /* For Rank 13 to 16 */ else { /* Clear the old SQx bits for the selected rank */ hadc->Instance->SQR1 &= ~__HAL_ADC_SQR1_RK(ADC_SQR1_SQ13, sConfig->Rank); /* Set the SQx bits for the selected rank */ hadc->Instance->SQR1 |= __HAL_ADC_SQR1_RK(sConfig->Channel, sConfig->Rank); } /* Channel sampling time configuration */ /* For channels 10 to 18 */ if (sConfig->Channel > ADC_CHANNEL_10) { /* Clear the old sample time */ hadc->Instance->SMPR1 &= ~__HAL_ADC_SMPR1(ADC_SMPR1_SMP10, sConfig->Channel); /* Set the new sample time */ hadc->Instance->SMPR1 |= __HAL_ADC_SMPR1(sConfig->SamplingTime, sConfig->Channel); } else /* For channels 0 to 9 */ { /* Clear the old sample time */ hadc->Instance->SMPR2 &= ~__HAL_ADC_SMPR2(ADC_SMPR2_SMP0, sConfig->Channel); /* Set the new sample time */ hadc->Instance->SMPR2 |= __HAL_ADC_SMPR2(sConfig->SamplingTime, sConfig->Channel); } /* if ADC1 Channel_16 or Channel_17 is selected, enable Temperature sensor / VREFINT measurement path */ if ((sConfig->Channel == ADC_CHANNEL_TEMPSENSOR) || (sConfig->Channel == ADC_CHANNEL_VREFINT)) { hadc->Instance->CR2 |= ADC_CR2_TSVREFE; } /* if ADC1 Channel_17 is selected, enable VBAT measurement path */ else if (sConfig->Channel == ADC_CHANNEL_VBAT) { SYSCFG->CFGR1 |= SYSCFG_CFGR1_VBAT; } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @brief Configures the ADC injected group and the selected channel to be * linked to the injected group. * @note Possibility to update parameters on the fly: * This function initializes injected group, following calls to this * function can be used to reconfigure some parameters of structure * "ADC_InjectionConfTypeDef" 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_InjectionConfTypeDef". * @note In case of usage of internal measurement channels: * Vbat/VrefInt/TempSensor. * The recommended sampling time is at least: * - For devices STM32F37x: 17.1us for temperature sensor * - For the other STM32F3 devices: 2.2us for each of channels * Vbat/VrefInt/TempSensor. * These internal paths can be be disabled using function * HAL_ADC_DeInit(). * @note To reset injected sequencer, function HAL_ADCEx_InjectedStop() can * be used. * @note Caution: For Injected Context Queue use: a context must be fully * defined before start of injected conversion: all channels configured * consecutively for the same ADC instance. Therefore, Number of calls of * HAL_ADCEx_InjectedConfigChannel() must correspond to value of parameter * InjectedNbrOfConversion for each context. * - Example 1: If 1 context intended to be used (or not use of this feature: * QueueInjectedContext=DISABLE) and usage of the 3 first injected ranks * (InjectedNbrOfConversion=3), HAL_ADCEx_InjectedConfigChannel() must be * called once for each channel (3 times) before launching a conversion. * This function must not be called to configure the 4th injected channel: * it would start a new context into context queue. * - Example 2: If 2 contexts intended to be used and usage of the 3 first * injected ranks (InjectedNbrOfConversion=3), * HAL_ADCEx_InjectedConfigChannel() must be called once for each channel and * for each context (3 channels x 2 contexts = 6 calls). Conversion can * start once the 1st context is set. The 2nd context can be set on the fly. * @param hadc: ADC handle * @param sConfigInjected: Structure of ADC injected group and ADC channel for * injected group. * @retval None */ HAL_StatusTypeDef HAL_ADCEx_InjectedConfigChannel(ADC_HandleTypeDef* hadc, ADC_InjectionConfTypeDef* sConfigInjected) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; ADC_Common_TypeDef *tmpADC_Common; ADC_HandleTypeDef tmphadcSharingSameCommonRegister; uint32_t tmpOffsetShifted; uint32_t WaitLoopIndex = 0; /* Injected context queue feature: temporary JSQR variables defined in */ /* static to be passed over calls of this function */ static uint32_t tmp_JSQR_ContextQueueBeingBuilt_ADCInstance = 0; static uint32_t tmp_JSQR_ContextQueueBeingBuilt_Channel_Count = 0; static uint32_t tmp_JSQR_ContextQueueBeingBuilt; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_INJECTED_RANK(sConfigInjected->InjectedRank)); assert_param(IS_ADC_SAMPLE_TIME(sConfigInjected->InjectedSamplingTime)); assert_param(IS_ADC_SINGLE_DIFFERENTIAL(sConfigInjected->InjectedSingleDiff)); assert_param(IS_ADC_INJECTED_NB_CONV(sConfigInjected->InjectedNbrOfConversion)); assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->InjectedDiscontinuousConvMode)); assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->AutoInjectedConv)); assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->QueueInjectedContext)); assert_param(IS_ADC_EXTTRIGINJEC_EDGE(sConfigInjected->ExternalTrigInjecConvEdge)); assert_param(IS_ADC_EXTTRIGINJEC(sConfigInjected->ExternalTrigInjecConv)); assert_param(IS_ADC_OFFSET_NUMBER(sConfigInjected->InjectedOffsetNumber)); assert_param(IS_ADC_RANGE(__HAL_ADC_GET_RESOLUTION(hadc), sConfigInjected->InjectedOffset)); /* Verification of channel number: Channels 1 to 14 are available in */ /* differential mode. Channels 15, 16, 17, 18 can be used only in */ /* single-ended mode. */ if (sConfigInjected->InjectedSingleDiff != ADC_DIFFERENTIAL_ENDED) { assert_param(IS_ADC_CHANNEL(sConfigInjected->InjectedChannel)); } else { assert_param(IS_ADC_DIFF_CHANNEL(sConfigInjected->InjectedChannel)); } /* Process locked */ __HAL_LOCK(hadc); /* Configuration of Injected group sequencer. */ /* Hardware constraint: Must fully define injected context register JSQR */ /* before make it entering into injected sequencer queue. */ /* */ /* - if scan mode is disabled: */ /* * Injected channels sequence length is set to 0x00: 1 channel */ /* converted (channel on injected rank 1) */ /* Parameter "InjectedNbrOfConversion" is discarded. */ /* * Injected context register JSQR setting is simple: register is fully */ /* defined on one call of this function (for injected rank 1) and can */ /* be entered into queue directly. */ /* - if scan mode is enabled: */ /* * Injected channels sequence length is set to parameter */ /* "InjectedNbrOfConversion". */ /* * Injected context register JSQR setting more complex: register is */ /* fully defined over successive calls of this function, for each */ /* injected channel rank. It is entered into queue only when all */ /* injected ranks have been set. */ /* Note: Scan mode is not present by hardware on this device, but used */ /* by software for alignment over all STM32 devices. */ if ((hadc->Init.ScanConvMode == ADC_SCAN_DISABLE) || (sConfigInjected->InjectedNbrOfConversion == 1) ) { /* Configuration of context register JSQR: */ /* - number of ranks in injected group sequencer: fixed to 1st rank */ /* (scan mode disabled, only rank 1 used) */ /* - external trigger to start conversion */ /* - external trigger polarity */ /* - channel set to rank 1 (scan mode disabled, only rank 1 used) */ if (sConfigInjected->InjectedRank == ADC_INJECTED_RANK_1) { tmp_JSQR_ContextQueueBeingBuilt = 0; /* Enable external trigger if trigger selection is different of */ /* software start. */ /* Note: This configuration keeps the hardware feature of parameter */ /* ExternalTrigInjecConvEdge "trigger edge none" equivalent to */ /* software start. */ if (sConfigInjected->ExternalTrigInjecConv != ADC_INJECTED_SOFTWARE_START) { tmp_JSQR_ContextQueueBeingBuilt |= ( __HAL_ADC_JSQR_RK(sConfigInjected->InjectedChannel, ADC_INJECTED_RANK_1) | __HAL_ADC_JSQR_JEXTSEL(hadc, sConfigInjected->ExternalTrigInjecConv) | sConfigInjected->ExternalTrigInjecConvEdge ); } else { tmp_JSQR_ContextQueueBeingBuilt |= ( __HAL_ADC_JSQR_RK(sConfigInjected->InjectedChannel, ADC_INJECTED_RANK_1) ); } hadc->Instance->JSQR = tmp_JSQR_ContextQueueBeingBuilt; } /* If another injected rank than rank1 was intended to be set, and could */ /* not due to ScanConvMode disabled, error is reported. */ else { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; tmpHALStatus = HAL_ERROR; } } else { /* Case of scan mode enabled, several channels to set into injected group */ /* sequencer. */ /* Procedure to define injected context register JSQR over successive */ /* calls of this function, for each injected channel rank: */ /* 1. Start new context and set parameters related to all injected */ /* channels: injected sequence length and trigger */ if (tmp_JSQR_ContextQueueBeingBuilt_Channel_Count == 0) { /* Memorize ADC instance on the context being built */ tmp_JSQR_ContextQueueBeingBuilt_ADCInstance = (uint32_t)hadc->Instance; /* Initialize number of channels that will be configured on the context */ /* being built */ tmp_JSQR_ContextQueueBeingBuilt_Channel_Count = sConfigInjected->InjectedNbrOfConversion; /* Initialize value that will be set into register JSQR */ tmp_JSQR_ContextQueueBeingBuilt = (uint32_t)0x00000000; /* Configuration of context register JSQR: */ /* - number of ranks in injected group sequencer */ /* - external trigger to start conversion */ /* - external trigger polarity */ tmp_JSQR_ContextQueueBeingBuilt = 0; /* Enable external trigger if trigger selection is different of */ /* software start. */ /* Note: This configuration keeps the hardware feature of parameter */ /* ExternalTrigInjecConvEdge "trigger edge none" equivalent to */ /* software start. */ if (sConfigInjected->ExternalTrigInjecConv != ADC_INJECTED_SOFTWARE_START) { tmp_JSQR_ContextQueueBeingBuilt |= ((sConfigInjected->InjectedNbrOfConversion - (uint32_t)1) | __HAL_ADC_JSQR_JEXTSEL(hadc, sConfigInjected->ExternalTrigInjecConv) | sConfigInjected->ExternalTrigInjecConvEdge ); } else { tmp_JSQR_ContextQueueBeingBuilt |= ((sConfigInjected->InjectedNbrOfConversion - (uint32_t)1) ); } } /* Verification that context being built is still targeting the same ADC */ /* instance. If ADC instance mixing during context being built, ADC state */ /* changed to error */ if ((uint32_t)hadc->Instance == tmp_JSQR_ContextQueueBeingBuilt_ADCInstance) { /* 2. Continue setting of context under definition with parameter */ /* related to each channel: channel rank sequence */ /* Clear the old JSQx bits for the selected rank */ tmp_JSQR_ContextQueueBeingBuilt &= ~__HAL_ADC_JSQR_RK(ADC_SQR3_SQ10, sConfigInjected->InjectedRank); /* Set the JSQx bits for the selected rank */ tmp_JSQR_ContextQueueBeingBuilt |= __HAL_ADC_JSQR_RK(sConfigInjected->InjectedChannel, sConfigInjected->InjectedRank); /* Decrease channel count after setting into temporary JSQR variable */ tmp_JSQR_ContextQueueBeingBuilt_Channel_Count --; /* 3. End of context setting: If last channel set, then write context */ /* into register JSQR and make it enter into queue */ if (tmp_JSQR_ContextQueueBeingBuilt_Channel_Count == 0) { hadc->Instance->JSQR = tmp_JSQR_ContextQueueBeingBuilt; /* Reset context channels count for next context configuration */ tmp_JSQR_ContextQueueBeingBuilt_Channel_Count =0; } } else { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; /* Process unlocked */ __HAL_UNLOCK(hadc); return HAL_ERROR; } } /* Parameters update conditioned to ADC state: */ /* Parameters that can be updated when ADC is disabled or enabled without */ /* conversion on going on injected group: */ /* - Injected context queue: Queue disable (active context is kept) or */ /* enable (context decremented, up to 2 contexts queued) */ /* - Injected discontinuous mode: can be enabled only if auto-injected */ /* mode is disabled. */ if (__HAL_ADC_IS_CONVERSION_ONGOING_INJECTED(hadc) == RESET) { hadc->Instance->CFGR &= ~(ADC_CFGR_JQM | ADC_CFGR_JDISCEN ); /* If auto-injected mode is disabled: no constraint */ if (sConfigInjected->AutoInjectedConv == DISABLE) { hadc->Instance->CFGR |= (__HAL_ADC_CFGR_INJECT_CONTEXT_QUEUE(sConfigInjected->QueueInjectedContext) | __HAL_ADC_CFGR_INJECT_DISCCONTINUOUS(sConfigInjected->InjectedDiscontinuousConvMode) ); } /* If auto-injected mode is enabled: Injected discontinuous setting is */ /* discarded. */ else { hadc->Instance->CFGR |= __HAL_ADC_CFGR_INJECT_CONTEXT_QUEUE(sConfigInjected->QueueInjectedContext); /* If injected discontinuous mode was intended to be set and could not */ /* due to auto-injected enabled, error is reported. */ if (sConfigInjected->InjectedDiscontinuousConvMode == ENABLE) { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; tmpHALStatus = HAL_ERROR; } } } /* Parameters update conditioned to ADC state: */ /* Parameters that can be updated when ADC is disabled or enabled without */ /* conversion on going on regular and injected groups: */ /* - Automatic injected conversion: can be enabled if injected group */ /* external triggers are disabled. */ /* - Channel sampling time */ /* - Channel offset */ if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR_INJECTED(hadc) == RESET) { /* Configure Automatic injected conversion */ hadc->Instance->CFGR &= ~(ADC_CFGR_JAUTO); /* If injected group external triggers are disabled (set to injected */ /* software start): no constraint */ if (sConfigInjected->ExternalTrigInjecConv == ADC_INJECTED_SOFTWARE_START) { hadc->Instance->CFGR |= __HAL_ADC_CFGR_INJECT_AUTO_CONVERSION(sConfigInjected->AutoInjectedConv); } /* If Automatic injected conversion was intended to be set and could not */ /* due to injected group external triggers enabled, error is reported. */ else { if (sConfigInjected->AutoInjectedConv == ENABLE) { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; tmpHALStatus = HAL_ERROR; } } /* Sampling time configuration of the selected channel */ /* if ADC_Channel_10 ... ADC_Channel_18 is selected */ if (sConfigInjected->InjectedChannel > ADC_CHANNEL_10) { /* Clear the old sample time */ hadc->Instance->SMPR2 &= ~__HAL_ADC_SMPR2(ADC_SMPR1_SMP0, sConfigInjected->InjectedChannel); /* Set the new sample time */ hadc->Instance->SMPR2 |= __HAL_ADC_SMPR2(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel); } else /* ADC_Channel include in ADC_Channel_[0..9] */ { /* Clear the old sample time */ hadc->Instance->SMPR1 &= ~__HAL_ADC_SMPR1(ADC_SMPR2_SMP10, sConfigInjected->InjectedChannel); /* Set the new sample time */ hadc->Instance->SMPR1 |= __HAL_ADC_SMPR1(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel); } /* Configure the offset: offset enable/disable, channel, offset value */ /* Shift the offset in function of the selected ADC resolution. */ /* Offset has to be left-aligned on bit 11, the LSB (right bits) are set to 0 */ tmpOffsetShifted = __HAL_ADC_OFFSET_SHIFT_RESOLUTION(hadc, sConfigInjected->InjectedOffset); switch (sConfigInjected->InjectedOffsetNumber) { case ADC_OFFSET_1: /* Configure offset register 1: */ /* - Enable offset */ /* - Set channel number */ /* - Set offset value */ hadc->Instance->OFR1 &= ~( ADC_OFR1_OFFSET1_CH | ADC_OFR1_OFFSET1 ); hadc->Instance->OFR1 |= ( ADC_OFR1_OFFSET1_EN | __HAL_ADC_OFR_CHANNEL(sConfigInjected->InjectedChannel) | tmpOffsetShifted ); break; case ADC_OFFSET_2: /* Configure offset register 2: */ /* - Enable offset */ /* - Set channel number */ /* - Set offset value */ hadc->Instance->OFR2 &= ~( ADC_OFR2_OFFSET2_CH | ADC_OFR2_OFFSET2 ); hadc->Instance->OFR2 |= ( ADC_OFR2_OFFSET2_EN | __HAL_ADC_OFR_CHANNEL(sConfigInjected->InjectedChannel) | tmpOffsetShifted ); break; case ADC_OFFSET_3: /* Configure offset register 3: */ /* - Enable offset */ /* - Set channel number */ /* - Set offset value */ hadc->Instance->OFR3 &= ~( ADC_OFR3_OFFSET3_CH | ADC_OFR3_OFFSET3 ); hadc->Instance->OFR3 |= ( ADC_OFR3_OFFSET3_EN | __HAL_ADC_OFR_CHANNEL(sConfigInjected->InjectedChannel) | tmpOffsetShifted ); break; case ADC_OFFSET_4: /* Configure offset register 1: */ /* - Enable offset */ /* - Set channel number */ /* - Set offset value */ hadc->Instance->OFR4 &= ~( ADC_OFR4_OFFSET4_CH | ADC_OFR4_OFFSET4 ); hadc->Instance->OFR4 |= ( ADC_OFR4_OFFSET4_EN | __HAL_ADC_OFR_CHANNEL(sConfigInjected->InjectedChannel) | tmpOffsetShifted ); break; /* Case ADC_OFFSET_NONE */ default : /* Scan OFR1, OFR2, OFR3, OFR4 to check if the selected channel is enabled. If this is the case, offset OFRx is disabled. */ if (((hadc->Instance->OFR1) & ADC_OFR1_OFFSET1_CH) == __HAL_ADC_OFR_CHANNEL(sConfigInjected->InjectedChannel)) { /* Disable offset OFR1*/ hadc->Instance->OFR1 &= ~ADC_OFR1_OFFSET1_EN; } if (((hadc->Instance->OFR2) & ADC_OFR2_OFFSET2_CH) == __HAL_ADC_OFR_CHANNEL(sConfigInjected->InjectedChannel)) { /* Disable offset OFR2*/ hadc->Instance->OFR2 &= ~ADC_OFR2_OFFSET2_EN; } if (((hadc->Instance->OFR3) & ADC_OFR3_OFFSET3_CH) == __HAL_ADC_OFR_CHANNEL(sConfigInjected->InjectedChannel)) { /* Disable offset OFR3*/ hadc->Instance->OFR3 &= ~ADC_OFR3_OFFSET3_EN; } if (((hadc->Instance->OFR4) & ADC_OFR4_OFFSET4_CH) == __HAL_ADC_OFR_CHANNEL(sConfigInjected->InjectedChannel)) { /* Disable offset OFR4*/ hadc->Instance->OFR4 &= ~ADC_OFR4_OFFSET4_EN; } break; } } /* Parameters update conditioned to ADC state: */ /* Parameters that can be updated only when ADC is disabled: */ /* - Single or differential mode */ /* - Internal measurement channels: Vbat/VrefInt/TempSensor */ if (__HAL_ADC_IS_ENABLED(hadc) == RESET) { /* Configuration of differential mode */ if (sConfigInjected->InjectedSingleDiff != ADC_DIFFERENTIAL_ENDED) { /* Disable differential mode (default mode: single-ended) */ hadc->Instance->DIFSEL &= ~(__HAL_ADC_DIFSEL_CHANNEL(sConfigInjected->InjectedChannel)); } else { /* Enable differential mode */ hadc->Instance->DIFSEL |= __HAL_ADC_DIFSEL_CHANNEL(sConfigInjected->InjectedChannel); /* Sampling time configuration of channel ADC_IN+1 (negative input) */ /* For channels 10 to 18 */ if (sConfigInjected->InjectedChannel > ADC_CHANNEL_10) { /* Clear the old sample time */ hadc->Instance->SMPR2 &= ~__HAL_ADC_SMPR2(ADC_SMPR1_SMP0, (sConfigInjected->InjectedChannel +1)); /* Set the new sample time */ hadc->Instance->SMPR2 |= __HAL_ADC_SMPR2(sConfigInjected->InjectedSamplingTime, (sConfigInjected->InjectedChannel +1)); } else /* For channels 0 to 9 */ { /* Clear the old sample time */ hadc->Instance->SMPR1 &= ~__HAL_ADC_SMPR1(ADC_SMPR2_SMP10, (sConfigInjected->InjectedChannel +1)); /* Set the new sample time */ hadc->Instance->SMPR1 |= __HAL_ADC_SMPR1(sConfigInjected->InjectedSamplingTime, (sConfigInjected->InjectedChannel +1)); } } /* 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(). */ /* Configuration of common ADC parameters */ /* Pointer to the common control register to which is belonging hadc */ /* (Depending on STM32F3 product, there may be up to 4 ADC and 2 common */ /* control registers) */ tmpADC_Common = __HAL_ADC_COMMON_REGISTER(hadc); /* If the requested internal measurement path has already been enabled, */ /* bypass the configuration processing. */ if (( (sConfigInjected->InjectedChannel == ADC_CHANNEL_TEMPSENSOR) && (HAL_IS_BIT_CLR(tmpADC_Common->CCR, ADC_CCR_TSEN)) ) || ( (sConfigInjected->InjectedChannel == ADC_CHANNEL_VBAT) && (HAL_IS_BIT_CLR(tmpADC_Common->CCR, ADC_CCR_VBATEN)) ) || ( (sConfigInjected->InjectedChannel == ADC_CHANNEL_VREFINT) && (HAL_IS_BIT_CLR(tmpADC_Common->CCR, ADC_CCR_VREFEN))) ) { /* Configuration of common ADC parameters (continuation) */ /* Set handle of the other ADC sharing the same common register */ __HAL_ADC_COMMON_ADC_OTHER(hadc, &tmphadcSharingSameCommonRegister); /* Software is allowed to change common parameters only when all ADCs */ /* of the common group are disabled. */ if ((__HAL_ADC_IS_ENABLED(hadc) == RESET) && ( (tmphadcSharingSameCommonRegister.Instance == NULL) || (__HAL_ADC_IS_ENABLED(&tmphadcSharingSameCommonRegister) == RESET) )) { /* If Channel_16 is selected, enable Temp. sensor measurement path */ /* Note: Temp. sensor internal channels available on ADC1 only */ if ((sConfigInjected->InjectedChannel == ADC_CHANNEL_TEMPSENSOR) && (hadc->Instance == ADC1)) { tmpADC_Common->CCR |= ADC_CCR_TSEN; } /* If Channel_17 is selected, enable VBAT measurement path */ /* Note: VBAT internal channels available on ADC1 only */ else if ((sConfigInjected->InjectedChannel == ADC_CHANNEL_VBAT) && (hadc->Instance == ADC1)) { tmpADC_Common->CCR |= ADC_CCR_VBATEN; /* Delay for temperature sensor stabilization time */ while(WaitLoopIndex < ADC_TEMPSENSOR_DELAY_CPU_CYCLES) { WaitLoopIndex++; } } /* If Channel_18 is selected, enable VREFINT measurement path */ /* Note: VrefInt internal channels available on all ADCs, but only */ /* one ADC is allowed to be connected to VrefInt at the same */ /* time. */ else if (sConfigInjected->InjectedChannel == ADC_CHANNEL_VREFINT) { tmpADC_Common->CCR |= ADC_CCR_VREFEN; } } /* If the requested internal measurement path has already been enabled */ /* and other ADC of the common group are enabled, internal */ /* measurement paths cannot be enabled. */ 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; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Configures the ADC injected group and the selected channel to be * linked to the injected group. * @note Possibility to update parameters on the fly: * This function initializes injected group, following calls to this * function can be used to reconfigure some parameters of structure * "ADC_InjectionConfTypeDef" on the fly, without reseting the ADC. * The setting of these parameters is conditioned to ADC state: * this function must be called when ADC is not under conversion. * @note In case of usage of internal measurement channels: * Vbat/VrefInt/TempSensor. * The recommended sampling time is at least: * - For devices STM32F37x: 17.1us for temperature sensor * - For the other STM32F3 devices: 2.2us for each of channels * Vbat/VrefInt/TempSensor. * These internal paths can be be disabled using function * HAL_ADC_DeInit(). * @param hadc: ADC handle * @param sConfigInjected: Structure of ADC injected group and ADC channel for * injected group. * @retval None */ HAL_StatusTypeDef HAL_ADCEx_InjectedConfigChannel(ADC_HandleTypeDef* hadc, ADC_InjectionConfTypeDef* sConfigInjected) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_CHANNEL(sConfigInjected->InjectedChannel)); assert_param(IS_ADC_INJECTED_RANK(sConfigInjected->InjectedRank)); assert_param(IS_ADC_SAMPLE_TIME(sConfigInjected->InjectedSamplingTime)); assert_param(IS_ADC_INJECTED_NB_CONV(sConfigInjected->InjectedNbrOfConversion)); assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->InjectedDiscontinuousConvMode)); assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->AutoInjectedConv)); assert_param(IS_ADC_EXTTRIGINJEC(sConfigInjected->ExternalTrigInjecConv)); assert_param(IS_ADC_RANGE(sConfigInjected->InjectedOffset)); /* Process locked */ __HAL_LOCK(hadc); /* Configuration of injected group sequencer: */ /* - if scan mode is disabled, injected channels sequence length is set to */ /* 0x00: 1 channel converted (channel on regular rank 1) */ /* Parameter "InjectedNbrOfConversion" is discarded. */ /* Note: Scan mode is present by hardware on this device and, if */ /* disabled, discards automatically nb of conversions. Anyway, nb of */ /* conversions is forced to 0x00 for alignment over all STM32 devices. */ /* - if scan mode is enabled, injected channels sequence length is set to */ /* parameter ""InjectedNbrOfConversion". */ if (hadc->Init.ScanConvMode == ADC_SCAN_DISABLE) { if (sConfigInjected->InjectedRank == ADC_INJECTED_RANK_1) { /* Clear the old SQx bits for all injected ranks */ hadc->Instance->JSQR &= ~ (ADC_JSQR_JL | ADC_JSQR_JSQ4 | ADC_JSQR_JSQ3 | ADC_JSQR_JSQ2 | ADC_JSQR_JSQ1 ); /* Set the SQx bits for the selected rank */ hadc->Instance->JSQR |= __HAL_ADC_JSQR_RK(sConfigInjected->InjectedChannel, ADC_INJECTED_RANK_1, 0x01); } /* If another injected rank than rank1 was intended to be set, and could */ /* not due to ScanConvMode disabled, error is reported. */ else { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; tmpHALStatus = HAL_ERROR; } } else { /* Clear the old SQx bits for the selected rank */ hadc->Instance->JSQR &= ~ (ADC_JSQR_JL | __HAL_ADC_JSQR_RK(ADC_JSQR_JSQ1, sConfigInjected->InjectedRank, sConfigInjected->InjectedNbrOfConversion) ); /* Since injected channels rank conv. order depends on total number of */ /* injected conversions, selected rank must be below or equal to total */ /* number of injected conversions to be updated. */ if (sConfigInjected->InjectedRank <= sConfigInjected->InjectedNbrOfConversion) { /* Set the SQx bits for the selected rank */ hadc->Instance->JSQR |= (__HAL_ADC_JSQR_JL(sConfigInjected->InjectedNbrOfConversion) | __HAL_ADC_JSQR_RK(sConfigInjected->InjectedChannel, sConfigInjected->InjectedRank, sConfigInjected->InjectedNbrOfConversion) ); } } /* Configuration of injected group: external trigger */ /* - external trigger to start conversion */ /* - external trigger polarity */ /* If Automatic injected conversion disabled: always set to 1, */ /* because needed for all triggers: external trigger of SW start) */ /* Hardware constraint: ADC must be disabled */ /* Note: In case of ADC already enabled, caution to not launch an unwanted */ /* conversion while modifying register CR2 by writing 1 to bit ADON */ /* These settings are modified only if required parameters are different as */ /* current setting */ if ((__HAL_ADC_IS_ENABLED(hadc) == RESET) && ((hadc->Instance->CR2 & ADC_CR2_JEXTSEL) != sConfigInjected->ExternalTrigInjecConv) ) { hadc->Instance->CR2 &= ~( ADC_CR2_JEXTSEL | ADC_CR2_JEXTTRIG | ADC_CR2_ADON ); /* If automatic injected conversion is intended to be enabled and */ /* conditions are fulfilled (injected group external triggers are */ /* disabled), then keep injected external trigger JEXTTRIG cleared */ if (!((sConfigInjected->AutoInjectedConv == ENABLE) && (sConfigInjected->ExternalTrigInjecConv == ADC_INJECTED_SOFTWARE_START))) { hadc->Instance->CR2 |= ( sConfigInjected->ExternalTrigInjecConv | ADC_CR2_JEXTTRIG ); } else { hadc->Instance->CR2 |= ( sConfigInjected->ExternalTrigInjecConv ); } } /* Configuration of injected group */ /* - Automatic injected conversion */ /* - Injected discontinuous mode */ hadc->Instance->CR1 &= ~(ADC_CR1_JAUTO | ADC_CR1_JDISCEN ); /* Automatic injected conversion can be enabled if injected group */ /* external triggers are disabled. */ if (sConfigInjected->AutoInjectedConv == ENABLE) { if (sConfigInjected->ExternalTrigInjecConv == ADC_INJECTED_SOFTWARE_START) { hadc->Instance->CR1 |= ADC_CR1_JAUTO; } else { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; tmpHALStatus = HAL_ERROR; } } /* Injected discontinuous can be enabled only if auto-injected mode is */ /* disabled. */ if (sConfigInjected->InjectedDiscontinuousConvMode == ENABLE) { if (sConfigInjected->AutoInjectedConv == DISABLE) { hadc->Instance->CR1 |= ADC_CR1_JDISCEN; } else { /* Update ADC state machine to error */ hadc->State = HAL_ADC_STATE_ERROR; tmpHALStatus = HAL_ERROR; } } /* Channel sampling time configuration */ /* For channels 10 to 18 */ if (sConfigInjected->InjectedChannel > ADC_CHANNEL_10) { /* Clear the old sample time */ hadc->Instance->SMPR1 &= ~__HAL_ADC_SMPR1(ADC_SMPR1_SMP10, sConfigInjected->InjectedChannel); /* Set the new sample time */ hadc->Instance->SMPR1 |= __HAL_ADC_SMPR1(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel); } else /* For channels 0 to 9 */ { /* Clear the old sample time */ hadc->Instance->SMPR2 &= ~__HAL_ADC_SMPR2(ADC_SMPR2_SMP0, sConfigInjected->InjectedChannel); /* Set the new sample time */ hadc->Instance->SMPR2 |= __HAL_ADC_SMPR2(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel); } /* Configure the offset: offset enable/disable, InjectedChannel, offset value */ switch(sConfigInjected->InjectedRank) { case 1: /* Set injected channel 1 offset */ hadc->Instance->JOFR1 &= ~(ADC_JOFR1_JOFFSET1); hadc->Instance->JOFR1 |= sConfigInjected->InjectedOffset; break; case 2: /* Set injected channel 2 offset */ hadc->Instance->JOFR2 &= ~(ADC_JOFR2_JOFFSET2); hadc->Instance->JOFR2 |= sConfigInjected->InjectedOffset; break; case 3: /* Set injected channel 3 offset */ hadc->Instance->JOFR3 &= ~(ADC_JOFR3_JOFFSET3); hadc->Instance->JOFR3 |= sConfigInjected->InjectedOffset; break; default: /* Set injected channel 4 offset */ hadc->Instance->JOFR4 &= ~(ADC_JOFR4_JOFFSET4); hadc->Instance->JOFR4 |= sConfigInjected->InjectedOffset; break; } /* if ADC1 Channel_16 or Channel_17 is selected, enable Temperature sensor / VREFINT measurement path */ if ((sConfigInjected->InjectedChannel == ADC_CHANNEL_TEMPSENSOR) || (sConfigInjected->InjectedChannel == ADC_CHANNEL_VREFINT)) { hadc->Instance->CR2 |= ADC_CR2_TSVREFE; } /* if ADC1 Channel_17 is selected, enable VBAT measurement path */ else if (sConfigInjected->InjectedChannel == ADC_CHANNEL_VBAT) { SYSCFG->CFGR1 |= SYSCFG_CFGR1_VBAT; } /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return tmpHALStatus; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @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; uint32_t tmpADCFlagAWD2orAWD3; uint32_t tmpADCITAWD2orAWD3; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_ANALOG_WATCHDOG_NUMBER(AnalogWDGConfig->WatchdogNumber)); assert_param(IS_ADC_ANALOG_WATCHDOG_MODE(AnalogWDGConfig->WatchdogMode)); assert_param(IS_ADC_CHANNEL(AnalogWDGConfig->Channel)); 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)); /* 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 and injected groups: */ /* - Analog watchdog channels */ /* - Analog watchdog thresholds */ if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR_INJECTED(hadc) == RESET) { /* Analog watchdogs configuration */ if(AnalogWDGConfig->WatchdogNumber == ADC_ANALOGWATCHDOG_1) { /* Configuration of analog watchdog: */ /* - Set the analog watchdog enable mode: regular and/or injected */ /* groups, 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->CFGR &= ~( ADC_CFGR_AWD1SGL | ADC_CFGR_JAWD1EN | ADC_CFGR_AWD1EN | ADC_CFGR_AWD1CH ); hadc->Instance->CFGR |= ( AnalogWDGConfig->WatchdogMode | __HAL_ADC_CFGR_AWD1CH(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->TR1 &= ~(ADC_TR1_HT1 | ADC_TR1_LT1); hadc->Instance->TR1 |= ( __HAL_ADC_TRX_HIGHTHRESHOLD (tmpAWDHighThresholdShifted) | tmpAWDLowThresholdShifted ); /* Clear the ADC Analog watchdog flag (in case of let 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_AWD1); /* Configure ADC Analog watchdog interrupt */ if(AnalogWDGConfig->ITMode == ENABLE) { /* Enable the ADC Analog watchdog interrupt */ __HAL_ADC_ENABLE_IT(hadc, ADC_IT_AWD1); } else { /* Disable the ADC Analog watchdog interrupt */ __HAL_ADC_DISABLE_IT(hadc, ADC_IT_AWD1); } } /* Case of ADC_ANALOGWATCHDOG_2 and ADC_ANALOGWATCHDOG_3 */ else { /* Shift the threshold in function of the selected ADC resolution */ /* have to be left-aligned on bit 7, the LSB (right bits) are set to 0 */ tmpAWDHighThresholdShifted = __HAL_ADC_AWD23THRESHOLD_SHIFT_RESOLUTION(hadc, AnalogWDGConfig->HighThreshold); tmpAWDLowThresholdShifted = __HAL_ADC_AWD23THRESHOLD_SHIFT_RESOLUTION(hadc, AnalogWDGConfig->LowThreshold); if (AnalogWDGConfig->WatchdogNumber == ADC_ANALOGWATCHDOG_2) { /* Set the Analog watchdog channel or group of channels. This also */ /* enables the watchdog. */ /* Note: Conditionnal register reset, because several channels can be */ /* set by successive calls of this function. */ if (AnalogWDGConfig->WatchdogMode != ADC_ANALOGWATCHDOG_NONE) { hadc->Instance->AWD2CR |= __HAL_ADC_CFGR_AWD23CR(AnalogWDGConfig->Channel); } else { hadc->Instance->AWD2CR &= ~ADC_AWD2CR_AWD2CH; } /* Set the high and low thresholds */ hadc->Instance->TR2 &= ~(ADC_TR2_HT2 | ADC_TR2_LT2); hadc->Instance->TR2 |= ( __HAL_ADC_TRX_HIGHTHRESHOLD (tmpAWDHighThresholdShifted) | tmpAWDLowThresholdShifted ); /* Set temporary variable to flag and IT of AWD2 or AWD3 for further */ /* settings. */ tmpADCFlagAWD2orAWD3 = ADC_FLAG_AWD2; tmpADCITAWD2orAWD3 = ADC_IT_AWD2; } /* (AnalogWDGConfig->WatchdogNumber == ADC_ANALOGWATCHDOG_3) */ else { /* Set the Analog watchdog channel or group of channels. This also */ /* enables the watchdog. */ /* Note: Conditionnal register reset, because several channels can be */ /* set by successive calls of this function. */ if (AnalogWDGConfig->WatchdogMode != ADC_ANALOGWATCHDOG_NONE) { hadc->Instance->AWD3CR |= __HAL_ADC_CFGR_AWD23CR(AnalogWDGConfig->Channel); } else { hadc->Instance->AWD3CR &= ~ADC_AWD3CR_AWD3CH; } /* Set the high and low thresholds */ hadc->Instance->TR3 &= ~(ADC_TR3_HT3 | ADC_TR3_LT3); hadc->Instance->TR3 |= ( __HAL_ADC_TRX_HIGHTHRESHOLD (tmpAWDHighThresholdShifted) | tmpAWDLowThresholdShifted ); /* Set temporary variable to flag and IT of AWD2 or AWD3 for further */ /* settings. */ tmpADCFlagAWD2orAWD3 = ADC_FLAG_AWD3; tmpADCITAWD2orAWD3 = ADC_IT_AWD3; } /* Clear the ADC Analog watchdog flag (in case of let enabled by */ /* previous ADC operations) to be ready to use for HAL_ADC_IRQHandler() */ /* or HAL_ADC_PollForEvent(). */ __HAL_ADC_CLEAR_FLAG(hadc, tmpADCFlagAWD2orAWD3); /* Configure ADC Analog watchdog interrupt */ if(AnalogWDGConfig->ITMode == ENABLE) { __HAL_ADC_ENABLE_IT(hadc, tmpADCITAWD2orAWD3); } else { __HAL_ADC_DISABLE_IT(hadc, tmpADCITAWD2orAWD3); } } } /* If a conversion is on going on regular or injected groups, 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; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @brief Configures the analog watchdog. * @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) { /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_ANALOG_WATCHDOG_MODE(AnalogWDGConfig->WatchdogMode)); assert_param(IS_ADC_CHANNEL(AnalogWDGConfig->Channel)); assert_param(IS_FUNCTIONAL_STATE(AnalogWDGConfig->ITMode)); assert_param(IS_ADC_RANGE(AnalogWDGConfig->HighThreshold)); assert_param(IS_ADC_RANGE(AnalogWDGConfig->LowThreshold)); /* Process locked */ __HAL_LOCK(hadc); /* Analog watchdog configuration */ /* 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); } /* Configuration of analog watchdog: */ /* - Set the analog watchdog enable mode: regular and/or injected groups, */ /* one or all channels. */ /* - Set the Analog watchdog channel (is not used if watchdog */ /* mode "all channels": ADC_CFGR_AWD1SGL=0). */ hadc->Instance->CR1 &= ~( ADC_CR1_AWDSGL | ADC_CR1_JAWDEN | ADC_CR1_AWDEN | ADC_CR1_AWDCH ); hadc->Instance->CR1 |= ( AnalogWDGConfig->WatchdogMode | AnalogWDGConfig->Channel ); /* Set the high threshold */ hadc->Instance->HTR = AnalogWDGConfig->HighThreshold; /* Set the low threshold */ hadc->Instance->LTR = AnalogWDGConfig->LowThreshold; /* Process unlocked */ __HAL_UNLOCK(hadc); /* Return function status */ return HAL_OK; } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8)/** * @brief Enable ADC multimode and configure multimode parameters * @note Possibility to update parameters on the fly: * This function initializes multimode parameters, following * calls to this function can be used to reconfigure some parameters * of structure "ADC_MultiModeTypeDef" on the fly, without reseting * the ADCs (both ADCs of the common group). * The setting of these parameters is conditioned to ADC state. * For parameters constraints, see comments of structure * "ADC_MultiModeTypeDef". * @note To change back configuration from multimode to single mode, ADC must * be reset (using function HAL_ADC_Init() ). * @param hadc: ADC handle * @param multimode : Structure of ADC multimode configuration * @retval HAL status */ HAL_StatusTypeDef HAL_ADCEx_MultiModeConfigChannel(ADC_HandleTypeDef* hadc, ADC_MultiModeTypeDef* multimode) { HAL_StatusTypeDef tmpHALStatus = HAL_OK; ADC_Common_TypeDef *tmpADC_Common; ADC_HandleTypeDef tmphadcSharingSameCommonRegister; /* Check the parameters */ assert_param(IS_ADC_MULTIMODE_MASTER_INSTANCE(hadc->Instance)); assert_param(IS_ADC_MODE(multimode->Mode)); assert_param(IS_ADC_DMA_ACCESS_MODE(multimode->DMAAccessMode)); assert_param(IS_ADC_SAMPLING_DELAY(multimode->TwoSamplingDelay)); /* Process locked */ __HAL_LOCK(hadc); /* Set handle of the other ADC sharing the same common register */ __HAL_ADC_COMMON_ADC_OTHER(hadc, &tmphadcSharingSameCommonRegister); /* Parameters update conditioned to ADC state: */ /* Parameters that can be updated when ADC is disabled or enabled without */ /* conversion on going on regular group: */ /* - Multimode DMA configuration */ /* - Multimode DMA mode */ /* Parameters that can be updated only when ADC is disabled: */ /* - Multimode mode selection */ /* - Multimode delay */ /* To optimize code, all multimode settings can be set when both ADCs of */ /* the common group are in state: disabled. */ if ((__HAL_ADC_IS_ENABLED(hadc) == RESET) && (__HAL_ADC_IS_ENABLED(&tmphadcSharingSameCommonRegister) == RESET) ) { /* Pointer to the common control register to which is belonging hadc */ /* (Depending on STM32F3 product, there may have up to 4 ADC and 2 common */ /* control registers) */ tmpADC_Common = __HAL_ADC_COMMON_REGISTER(hadc); /* Configuration of ADC common group ADC1&ADC2, ADC3&ADC4 if available */ /* (ADC2, ADC3, ADC4 availability depends on STM32 product) */ /* - set the selected multimode */ /* - DMA access mode */ /* - Set delay between two sampling phases */ /* Note: Delay range depends on selected resolution: */ /* from 1 to 12 clock cycles for 12 bits */ /* from 1 to 10 clock cycles for 10 bits, */ /* from 1 to 8 clock cycles for 8 bits */ /* from 1 to 6 clock cycles for 6 bits */ /* If a higher delay is selected, it will be clamped to maximum delay */ /* range */ tmpADC_Common->CCR &= ~( ADC_CCR_MULTI | ADC_CCR_MDMA | ADC_CCR_DELAY | ADC_CCR_DMACFG ); tmpADC_Common->CCR |= ( multimode->Mode | multimode->DMAAccessMode | multimode->TwoSamplingDelay | __HAL_ADC_CCR_MULTI_DMACONTREQ(hadc->Init.DMAContinuousRequests) ); } /* If one of the ADC sharing the same common group is enabled, no update */ /* could be done on neither of the multimode 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; } #endif /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 */ /** * @} */ /** @defgroup ADCEx_Group4 Extended Peripheral State functions * @brief Extended 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 * @{ */ /** * @} */ #if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F302xC) || defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8) || defined(STM32F301x8) || defined(STM32F318xx) || defined(STM32F302x8) /** * @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; /* 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); /* Wait for ADC effectively enabled */ tickstart = HAL_GetTick(); 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_DISABLE_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 * @param ConversionGroup: ADC group regular and/or injected. * This parameter can be one of the following values: * @arg REGULAR_GROUP: ADC regular conversion type. * @arg INJECTED_GROUP: ADC injected conversion type. * @arg REGULAR_INJECTED_GROUP: ADC regular and injected conversion type. * @retval HAL status. */ static HAL_StatusTypeDef ADC_ConversionStop(ADC_HandleTypeDef* hadc, uint32_t ConversionGroup) { uint32_t tmp_ADC_CR_ADSTART_JADSTART = 0; uint32_t tickstart = 0; uint32_t Conversion_Timeout_CPU_cycles = 0; /* Check the parameters */ assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance)); assert_param(IS_ADC_CONVERSION_GROUP(ConversionGroup)); /* Verification if ADC is not already stopped (on regular and injected */ /* groups) to bypass this function if not needed. */ if (__HAL_ADC_IS_CONVERSION_ONGOING_REGULAR_INJECTED(hadc)) { /* Particular case of continuous auto-injection mode combined with */ /* auto-delay mode. */ /* In auto-injection mode, regular group stop ADC_CR_ADSTP is used (not */ /* injected group stop ADC_CR_JADSTP). */ /* Procedure to be followed: Wait until JEOS=1, clear JEOS, set ADSTP=1 */ /* (see reference manual). */ if ((HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CFGR_JAUTO)) && (hadc->Init.ContinuousConvMode==ENABLE) && (hadc->Init.LowPowerAutoWait==ENABLE)) { /* Use stop of regular group */ ConversionGroup = REGULAR_GROUP; /* Wait until JEOS=1 (maximum Timeout: 4 injected conversions) */ while(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_JEOS) == RESET) { if (Conversion_Timeout_CPU_cycles >= (ADC_CONVERSION_TIME_MAX_CPU_CYCLES *4)) { /* 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; } Conversion_Timeout_CPU_cycles ++; } /* Clear JEOS */ __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JEOS); } /* Stop potential conversion on going on regular group */ if (ConversionGroup != INJECTED_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; } } /* Stop potential conversion on going on injected group */ if (ConversionGroup != REGULAR_GROUP) { /* Software is allowed to set JADSTP only when JADSTART=1 and ADDIS=0 */ if (HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_JADSTART) && HAL_IS_BIT_CLR(hadc->Instance->CR, ADC_CR_ADDIS) ) { /* Stop conversions on injected group */ hadc->Instance->CR |= ADC_CR_JADSTP; } } /* Selection of start and stop bits in function of regular or injected group */ switch(ConversionGroup) { case REGULAR_INJECTED_GROUP: tmp_ADC_CR_ADSTART_JADSTART = (ADC_CR_ADSTART | ADC_CR_JADSTART); break; case INJECTED_GROUP: tmp_ADC_CR_ADSTART_JADSTART = ADC_CR_JADSTART; break; /* Case REGULAR_GROUP */ default: tmp_ADC_CR_ADSTART_JADSTART = ADC_CR_ADSTART; break; } /* Wait for conversion effectively stopped */ tickstart = HAL_GetTick(); while((hadc->Instance->CR & tmp_ADC_CR_ADSTART_JADSTART) != 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 /* STM32F303xC || STM32F358xx || STM32F302xC || STM32F303x8 || STM32F328xx || STM32F334x8 || STM32F301x8 || STM32F318xx || STM32F302x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /** * @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 WaitLoopIndex = 0; uint32_t tickstart=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) { /* Enable the Peripheral */ __HAL_ADC_ENABLE(hadc); /* Delay for ADC stabilization time. */ /* Delay fixed to worst case: maximum CPU frequency */ while(WaitLoopIndex < ADC_STAB_DELAY_CPU_CYCLES) { WaitLoopIndex++; } /* Get timeout */ tickstart = HAL_GetTick(); /* Wait for ADC effectively enabled */ while(HAL_IS_BIT_CLR(hadc->Instance->CR2, ADC_CR2_ADON)) { 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; /* Process unlocked */ __HAL_UNLOCK(hadc); return HAL_ERROR; } } } /* Return HAL status */ return HAL_OK; } /** * @brief Stop ADC conversion and disable the selected ADC * @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_Disable(ADC_HandleTypeDef* hadc) { uint32_t tickstart = 0; /* Verification if ADC is not already disabled: */ if (__HAL_ADC_IS_ENABLED(hadc) != RESET) { /* Disable the ADC peripheral */ __HAL_ADC_DISABLE(hadc); /* Get timeout */ tickstart = HAL_GetTick(); /* Wait for ADC effectively disabled */ while(__HAL_ADC_IS_ENABLED(hadc) != 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; } #endif /* STM32F373xC || STM32F378xx */ /** * @} */ /** * @} */ /** * @} */ #endif /* HAL_ADC_MODULE_ENABLED */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/