From 43b94a6ada83454c3404bda019ec114f97379c82 Mon Sep 17 00:00:00 2001 From: "Pavel V. Shatov" Date: Thu, 27 Aug 2015 00:01:24 +0400 Subject: Initial version of FMC driver for STM32. --- .../STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c | 1412 ++++++++++++++++++++ 1 file changed, 1412 insertions(+) create mode 100644 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c (limited to 'Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c') diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c new file mode 100644 index 0000000..e9ba5d8 --- /dev/null +++ b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c @@ -0,0 +1,1412 @@ +/** + ****************************************************************************** + * @file stm32f4xx_hal_adc.c + * @author MCD Application Team + * @version V1.3.2 + * @date 26-June-2015 + * @brief This file provides firmware functions to manage the following + * functionalities of the Analog to Digital Convertor (ADC) peripheral: + * + Initialization and de-initialization functions + * + IO operation functions + * + State and errors functions + * + @verbatim + ============================================================================== + ##### ADC Peripheral features ##### + ============================================================================== + [..] + (#) 12-bit, 10-bit, 8-bit or 6-bit configurable resolution. + (#) Interrupt generation at the end of 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 x. + (#) Data alignment with in-built data coherency. + (#) Channel-wise programmable sampling time. + (#) External trigger option with configurable polarity for both regular and + injected conversion. + (#) Dual/Triple mode (on devices with 2 ADCs or more). + (#) Configurable DMA data storage in Dual/Triple ADC mode. + (#) Configurable delay between conversions in Dual/Triple interleaved mode. + (#) ADC conversion type (refer to the datasheets). + (#) 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: VREF(minus) = VIN = VREF(plus). + (#) DMA request generation during regular channel conversion. + + + ##### How to use this driver ##### + ============================================================================== + [..] + (#)Initialize the ADC low level resources by implementing the HAL_ADC_MspInit(): + (##) Enable the ADC interface clock using __HAL_RCC_ADC_CLK_ENABLE() + (##) ADC pins configuration + (+++) Enable the clock for the ADC GPIOs using the following function: + __HAL_RCC_GPIOx_CLK_ENABLE() + (+++) Configure these ADC pins in analog mode using HAL_GPIO_Init() + (##) In case of using interrupts (e.g. HAL_ADC_Start_IT()) + (+++) Configure the ADC interrupt priority using HAL_NVIC_SetPriority() + (+++) Enable the ADC IRQ handler using HAL_NVIC_EnableIRQ() + (+++) In ADC IRQ handler, call HAL_ADC_IRQHandler() + (##) In case of using DMA to control data transfer (e.g. HAL_ADC_Start_DMA()) + (+++) Enable the DMAx interface clock using __HAL_RCC_DMAx_CLK_ENABLE() + (+++) Configure and enable two DMA streams stream for managing data + transfer from peripheral to memory (output stream) + (+++) Associate the initialized DMA handle to the CRYP DMA handle + using __HAL_LINKDMA() + (+++) Configure the priority and enable the NVIC for the transfer complete + interrupt on the two DMA Streams. The output stream should have higher + priority than the input stream. + + *** Configuration of ADC, groups regular/injected, channels parameters *** + ============================================================================== + [..] + (#) Configure the ADC parameters (resolution, data alignment, ...) + and regular group parameters (conversion trigger, sequencer, ...) + using function HAL_ADC_Init(). + + (#) Configure the channels for regular group parameters (channel number, + channel rank into sequencer, ..., into regular group) + using function HAL_ADC_ConfigChannel(). + + (#) Optionally, configure the injected group parameters (conversion trigger, + sequencer, ..., of injected group) + and the channels for injected group parameters (channel number, + channel rank into sequencer, ..., into injected group) + using function HAL_ADCEx_InjectedConfigChannel(). + + (#) Optionally, configure the analog watchdog parameters (channels + monitored, thresholds, ...) using function HAL_ADC_AnalogWDGConfig(). + + (#) Optionally, for devices with several ADC instances: configure the + multimode parameters using function HAL_ADCEx_MultiModeConfigChannel(). + + *** Execution of ADC conversions *** + ============================================================================== + [..] + (#) ADC driver can be used among three modes: polling, interruption, + transfer by DMA. + + *** Polling mode IO operation *** + ================================= + [..] + (+) Start the ADC peripheral using HAL_ADC_Start() + (+) Wait for end of conversion using HAL_ADC_PollForConversion(), at this stage + user can specify the value of timeout according to his end application + (+) To read the ADC converted values, use the HAL_ADC_GetValue() function. + (+) Stop the ADC peripheral using HAL_ADC_Stop() + + *** Interrupt mode IO operation *** + =================================== + [..] + (+) Start the ADC peripheral using HAL_ADC_Start_IT() + (+) Use HAL_ADC_IRQHandler() called under ADC_IRQHandler() Interrupt subroutine + (+) At ADC end of conversion HAL_ADC_ConvCpltCallback() function is executed and user can + add his own code by customization of function pointer HAL_ADC_ConvCpltCallback + (+) In case of ADC Error, HAL_ADC_ErrorCallback() function is executed and user can + add his own code by customization of function pointer HAL_ADC_ErrorCallback + (+) Stop the ADC peripheral using HAL_ADC_Stop_IT() + + *** DMA mode IO operation *** + ============================== + [..] + (+) Start the ADC peripheral using HAL_ADC_Start_DMA(), at this stage the user specify the length + of data to be transferred at each end of conversion + (+) At The end of data transfer by HAL_ADC_ConvCpltCallback() function is executed and user can + add his own code by customization of function pointer HAL_ADC_ConvCpltCallback + (+) In case of transfer Error, HAL_ADC_ErrorCallback() function is executed and user can + add his own code by customization of function pointer HAL_ADC_ErrorCallback + (+) Stop the ADC peripheral using HAL_ADC_Stop_DMA() + + *** ADC HAL driver macros list *** + ============================================= + [..] + Below the list of most used macros in ADC HAL driver. + + (+) __HAL_ADC_ENABLE : Enable the ADC peripheral + (+) __HAL_ADC_DISABLE : Disable the ADC peripheral + (+) __HAL_ADC_ENABLE_IT: Enable the ADC end of conversion interrupt + (+) __HAL_ADC_DISABLE_IT: Disable the ADC end of conversion interrupt + (+) __HAL_ADC_GET_IT_SOURCE: Check if the specified ADC interrupt source is enabled or disabled + (+) __HAL_ADC_CLEAR_FLAG: Clear the ADC's pending flags + (+) __HAL_ADC_GET_FLAG: Get the selected ADC's flag status + (+) ADC_GET_RESOLUTION: Return resolution bits in CR1 register + + [..] + (@) You can refer to the ADC HAL driver header file for more useful macros + + *** Deinitialization of ADC *** + ============================================================================== + [..] + (#) Disable the ADC interface + (++) ADC clock can be hard reset and disabled at RCC top level. + (++) Hard reset of ADC peripherals + using macro __HAL_RCC_ADC_FORCE_RESET(), __HAL_RCC_ADC_RELEASE_RESET(). + (++) ADC clock disable using the equivalent macro/functions as configuration step. + (+++) Example: + Into HAL_ADC_MspDeInit() (recommended code location) or with + other device clock parameters configuration: + (+++) HAL_RCC_GetOscConfig(&RCC_OscInitStructure); + (+++) RCC_OscInitStructure.OscillatorType = RCC_OSCILLATORTYPE_HSI; + (+++) RCC_OscInitStructure.HSIState = RCC_HSI_OFF; (if not used for system clock) + (+++) HAL_RCC_OscConfig(&RCC_OscInitStructure); + + (#) ADC pins configuration + (++) Disable the clock for the ADC GPIOs using macro __HAL_RCC_GPIOx_CLK_DISABLE() + + (#) Optionally, in case of usage of ADC with interruptions: + (++) Disable the NVIC for ADC using function HAL_NVIC_DisableIRQ(ADCx_IRQn) + + (#) Optionally, in case of usage of DMA: + (++) Deinitialize the DMA using function HAL_DMA_DeInit(). + (++) Disable the NVIC for DMA using function HAL_NVIC_DisableIRQ(DMAx_Channelx_IRQn) + + @endverbatim + ****************************************************************************** + * @attention + * + *

© COPYRIGHT(c) 2015 STMicroelectronics

+ * + * 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 "stm32f4xx_hal.h" + +/** @addtogroup STM32F4xx_HAL_Driver + * @{ + */ + +/** @defgroup ADC ADC + * @brief ADC driver modules + * @{ + */ + +#ifdef HAL_ADC_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/** @addtogroup ADC_Private_Functions + * @{ + */ +/* Private function prototypes -----------------------------------------------*/ +static void ADC_Init(ADC_HandleTypeDef* hadc); +static void ADC_DMAConvCplt(DMA_HandleTypeDef *hdma); +static void ADC_DMAError(DMA_HandleTypeDef *hdma); +static void ADC_DMAHalfConvCplt(DMA_HandleTypeDef *hdma); +/** + * @} + */ +/* Exported functions --------------------------------------------------------*/ +/** @defgroup ADC_Exported_Functions ADC Exported Functions + * @{ + */ + +/** @defgroup ADC_Exported_Functions_Group1 Initialization and de-initialization functions + * @brief Initialization and Configuration functions + * +@verbatim + =============================================================================== + ##### Initialization and de-initialization functions ##### + =============================================================================== + [..] This section provides functions allowing to: + (+) Initialize and configure the ADC. + (+) De-initialize the ADC. + +@endverbatim + * @{ + */ + +/** + * @brief Initializes the ADCx peripheral according to the specified parameters + * in the ADC_InitStruct and initializes the ADC MSP. + * + * @note This function is used to configure the global features of the ADC ( + * ClockPrescaler, Resolution, Data Alignment and number of conversion), however, + * the rest of the configuration parameters are specific to the regular + * channels group (scan mode activation, continuous mode activation, + * External trigger source and edge, DMA continuous request after the + * last transfer and End of conversion selection). + * + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_ADC_Init(ADC_HandleTypeDef* hadc) +{ + /* 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_FUNCTIONAL_STATE(hadc->Init.ScanConvMode)); + assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode)); + assert_param(IS_ADC_EXT_TRIG(hadc->Init.ExternalTrigConv)); + assert_param(IS_ADC_DATA_ALIGN(hadc->Init.DataAlign)); + assert_param(IS_ADC_REGULAR_LENGTH(hadc->Init.NbrOfConversion)); + assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DMAContinuousRequests)); + assert_param(IS_ADC_EOCSelection(hadc->Init.EOCSelection)); + assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DiscontinuousConvMode)); + + if(hadc->Init.ExternalTrigConv != ADC_SOFTWARE_START) + { + assert_param(IS_ADC_EXT_TRIG_EDGE(hadc->Init.ExternalTrigConvEdge)); + } + + if(hadc->State == HAL_ADC_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hadc->Lock = HAL_UNLOCKED; + /* Init the low level hardware */ + HAL_ADC_MspInit(hadc); + } + + /* Initialize the ADC state */ + hadc->State = HAL_ADC_STATE_BUSY; + + /* Set ADC parameters */ + ADC_Init(hadc); + + /* Set ADC error code to none */ + hadc->ErrorCode = HAL_ADC_ERROR_NONE; + + /* Initialize the ADC state */ + hadc->State = HAL_ADC_STATE_READY; + + /* Release Lock */ + __HAL_UNLOCK(hadc); + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief Deinitializes the ADCx peripheral registers to their default reset values. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_ADC_DeInit(ADC_HandleTypeDef* hadc) +{ + /* 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; + + /* DeInit the low level hardware */ + HAL_ADC_MspDeInit(hadc); + + /* Set ADC error code to none */ + hadc->ErrorCode = HAL_ADC_ERROR_NONE; + + /* Change ADC state */ + hadc->State = HAL_ADC_STATE_RESET; + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief Initializes the ADC MSP. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval None + */ +__weak void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_ADC_MspInit could be implemented in the user file + */ +} + +/** + * @brief DeInitializes the ADC MSP. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval None + */ +__weak void HAL_ADC_MspDeInit(ADC_HandleTypeDef* hadc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_ADC_MspDeInit could be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup ADC_Exported_Functions_Group2 IO operation functions + * @brief IO operation functions + * +@verbatim + =============================================================================== + ##### IO operation functions ##### + =============================================================================== + [..] This section provides functions allowing to: + (+) Start conversion of regular channel. + (+) Stop conversion of regular channel. + (+) Start conversion of regular channel and enable interrupt. + (+) Stop conversion of regular channel and disable interrupt. + (+) Start conversion of regular channel and enable DMA transfer. + (+) Stop conversion of regular channel and disable DMA transfer. + (+) Handle ADC interrupt request. + +@endverbatim + * @{ + */ + +/** + * @brief Enables ADC and starts conversion of the regular channels. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_ADC_Start(ADC_HandleTypeDef* hadc) +{ + __IO uint32_t counter = 0; + + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode)); + assert_param(IS_ADC_EXT_TRIG_EDGE(hadc->Init.ExternalTrigConvEdge)); + + /* Process locked */ + __HAL_LOCK(hadc); + + /* 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; + } + + /* Check if ADC peripheral is disabled in order to enable it and wait during + Tstab time the ADC's stabilization */ + if((hadc->Instance->CR2 & ADC_CR2_ADON) != ADC_CR2_ADON) + { + /* Enable the Peripheral */ + __HAL_ADC_ENABLE(hadc); + + /* Delay for ADC stabilization time */ + /* Compute number of CPU cycles to wait for */ + counter = (ADC_STAB_DELAY_US * (SystemCoreClock / 1000000)); + while(counter != 0) + { + counter--; + } + } + + /* Process unlocked */ + __HAL_UNLOCK(hadc); + + /* Check if Multimode enabled */ + if(HAL_IS_BIT_CLR(ADC->CCR, ADC_CCR_MULTI)) + { + /* if no external trigger present enable software conversion of regular channels */ + if((hadc->Instance->CR2 & ADC_CR2_EXTEN) == RESET) + { + /* Enable the selected ADC software conversion for regular group */ + hadc->Instance->CR2 |= (uint32_t)ADC_CR2_SWSTART; + } + } + else + { + /* if instance of handle correspond to ADC1 and no external trigger present enable software conversion of regular channels */ + if((hadc->Instance == ADC1) && ((hadc->Instance->CR2 & ADC_CR2_EXTEN) == RESET)) + { + /* Enable the selected ADC software conversion for regular group */ + hadc->Instance->CR2 |= (uint32_t)ADC_CR2_SWSTART; + } + } + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief Disables ADC and stop conversion of regular channels. + * + * @note Caution: This function will stop also injected channels. + * + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * + * @retval HAL status. + */ +HAL_StatusTypeDef HAL_ADC_Stop(ADC_HandleTypeDef* hadc) +{ + /* Disable the Peripheral */ + __HAL_ADC_DISABLE(hadc); + + /* Change ADC state */ + hadc->State = HAL_ADC_STATE_READY; + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief Poll for regular conversion complete + * @note ADC conversion flags EOS (end of sequence) and EOC (end of + * conversion) are cleared by this function. + * @note This function cannot be used in a particular setup: ADC configured + * in DMA mode and polling for end of each conversion (ADC init + * parameter "EOCSelection" set to ADC_EOC_SINGLE_CONV). + * In this case, DMA resets the flag EOC and polling cannot be + * performed on each conversion. Nevertheless, polling can still + * be performed on the complete sequence. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @param Timeout: Timeout value in millisecond. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_ADC_PollForConversion(ADC_HandleTypeDef* hadc, uint32_t Timeout) +{ + uint32_t tickstart = 0; + + /* Verification that ADC configuration is compliant with polling for */ + /* each conversion: */ + /* Particular case is ADC configured in DMA mode and ADC sequencer with */ + /* several ranks and polling for end of each conversion. */ + /* For code simplicity sake, this particular case is generalized to */ + /* ADC configured in DMA mode and polling for end of each conversion. */ + if (HAL_IS_BIT_SET(hadc->Instance->CR2, ADC_CR2_EOCS) && + HAL_IS_BIT_SET(hadc->Instance->CR2, ADC_CR2_DMA) ) + { + /* Update ADC state machine to error */ + hadc->State = HAL_ADC_STATE_ERROR; + + /* Process unlocked */ + __HAL_UNLOCK(hadc); + + return HAL_ERROR; + } + + /* Get tick */ + tickstart = HAL_GetTick(); + + /* Check End of conversion flag */ + while(!(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOC))) + { + /* Check for the Timeout */ + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) + { + hadc->State= HAL_ADC_STATE_TIMEOUT; + /* Process unlocked */ + __HAL_UNLOCK(hadc); + return HAL_TIMEOUT; + } + } + } + + /* 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; + } + + /* Return ADC state */ + return HAL_OK; +} + +/** + * @brief Poll for conversion event + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @param EventType: the ADC event type. + * This parameter can be one of the following values: + * @arg ADC_AWD_EVENT: ADC Analog watch Dog event. + * @arg ADC_OVR_EVENT: ADC Overrun event. + * @param Timeout: Timeout value in millisecond. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_ADC_PollForEvent(ADC_HandleTypeDef* hadc, uint32_t EventType, uint32_t Timeout) +{ + uint32_t tickstart = 0; + + /* Check the parameters */ + assert_param(IS_ADC_EVENT_TYPE(EventType)); + + /* Get tick */ + tickstart = HAL_GetTick(); + + /* Check selected event flag */ + while(!(__HAL_ADC_GET_FLAG(hadc,EventType))) + { + /* Check for the Timeout */ + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) + { + hadc->State= HAL_ADC_STATE_TIMEOUT; + /* Process unlocked */ + __HAL_UNLOCK(hadc); + return HAL_TIMEOUT; + } + } + } + + /* Check analog watchdog flag */ + if(EventType == ADC_AWD_EVENT) + { + /* Change ADC state */ + hadc->State = HAL_ADC_STATE_AWD; + + /* Clear the ADCx's analog watchdog flag */ + __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD); + } + else + { + /* Change ADC state */ + hadc->State = HAL_ADC_STATE_ERROR; + + /* Clear the ADCx's Overrun flag */ + __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_OVR); + } + + /* Return ADC state */ + return HAL_OK; +} + + +/** + * @brief Enables the interrupt and starts ADC conversion of regular channels. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval HAL status. + */ +HAL_StatusTypeDef HAL_ADC_Start_IT(ADC_HandleTypeDef* hadc) +{ + __IO uint32_t counter = 0; + + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode)); + assert_param(IS_ADC_EXT_TRIG_EDGE(hadc->Init.ExternalTrigConvEdge)); + + /* Process locked */ + __HAL_LOCK(hadc); + + /* 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 */ + hadc->ErrorCode = HAL_ADC_ERROR_NONE; + + /* Check if ADC peripheral is disabled in order to enable it and wait during + Tstab time the ADC's stabilization */ + if((hadc->Instance->CR2 & ADC_CR2_ADON) != ADC_CR2_ADON) + { + /* Enable the Peripheral */ + __HAL_ADC_ENABLE(hadc); + + /* Delay for ADC stabilization time */ + /* Compute number of CPU cycles to wait for */ + counter = (ADC_STAB_DELAY_US * (SystemCoreClock / 1000000)); + while(counter != 0) + { + counter--; + } + } + + /* Enable the ADC overrun interrupt */ + __HAL_ADC_ENABLE_IT(hadc, ADC_IT_OVR); + + /* Enable the ADC end of conversion interrupt for regular group */ + __HAL_ADC_ENABLE_IT(hadc, ADC_IT_EOC); + + /* Process unlocked */ + __HAL_UNLOCK(hadc); + + /* Check if Multimode enabled */ + if(HAL_IS_BIT_CLR(ADC->CCR, ADC_CCR_MULTI)) + { + /* if no external trigger present enable software conversion of regular channels */ + if((hadc->Instance->CR2 & ADC_CR2_EXTEN) == RESET) + { + /* Enable the selected ADC software conversion for regular group */ + hadc->Instance->CR2 |= (uint32_t)ADC_CR2_SWSTART; + } + } + else + { + /* if instance of handle correspond to ADC1 and no external trigger present enable software conversion of regular channels */ + if((hadc->Instance == (ADC_TypeDef*)0x40012000) && ((hadc->Instance->CR2 & ADC_CR2_EXTEN) == RESET)) + { + /* Enable the selected ADC software conversion for regular group */ + hadc->Instance->CR2 |= (uint32_t)ADC_CR2_SWSTART; + } + } + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief Disables the interrupt and stop ADC conversion of regular channels. + * + * @note Caution: This function will stop also injected channels. + * + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval HAL status. + */ +HAL_StatusTypeDef HAL_ADC_Stop_IT(ADC_HandleTypeDef* hadc) +{ + /* Disable the ADC end of conversion interrupt for regular group */ + __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC); + + /* Disable the ADC end of conversion interrupt for injected group */ + __HAL_ADC_DISABLE_IT(hadc, ADC_CR1_JEOCIE); + + /* Enable the Peripheral */ + __HAL_ADC_DISABLE(hadc); + + /* Change ADC state */ + hadc->State = HAL_ADC_STATE_READY; + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief Handles ADC interrupt request + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval None + */ +void HAL_ADC_IRQHandler(ADC_HandleTypeDef* hadc) +{ + uint32_t tmp1 = 0, tmp2 = 0; + + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode)); + assert_param(IS_ADC_REGULAR_LENGTH(hadc->Init.NbrOfConversion)); + assert_param(IS_ADC_EOCSelection(hadc->Init.EOCSelection)); + + tmp1 = __HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOC); + tmp2 = __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_EOC); + /* Check End of conversion flag for regular channels */ + if(tmp1 && tmp2) + { + /* 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; + } + + if((hadc->Init.ContinuousConvMode == DISABLE) && ((hadc->Instance->CR2 & ADC_CR2_EXTEN) == RESET)) + { + if(hadc->Init.EOCSelection == ADC_EOC_SEQ_CONV) + { + /* DISABLE the ADC end of conversion interrupt for regular group */ + __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC); + + /* DISABLE the ADC overrun interrupt */ + __HAL_ADC_DISABLE_IT(hadc, ADC_IT_OVR); + } + else + { + if (hadc->NbrOfCurrentConversionRank == 0) + { + hadc->NbrOfCurrentConversionRank = hadc->Init.NbrOfConversion; + } + + /* Decrement the number of conversion when an interrupt occurs */ + hadc->NbrOfCurrentConversionRank--; + + /* Check if all conversions are finished */ + if(hadc->NbrOfCurrentConversionRank == 0) + { + /* DISABLE the ADC end of conversion interrupt for regular group */ + __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC); + + /* DISABLE the ADC overrun interrupt */ + __HAL_ADC_DISABLE_IT(hadc, ADC_IT_OVR); + } + } + } + + /* Conversion complete callback */ + HAL_ADC_ConvCpltCallback(hadc); + + /* Clear the ADCx flag for regular end of conversion */ + __HAL_ADC_CLEAR_FLAG(hadc,ADC_FLAG_EOC); + } + + tmp1 = __HAL_ADC_GET_FLAG(hadc, ADC_FLAG_JEOC); + tmp2 = __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_JEOC); + /* Check End of conversion flag for injected channels */ + if(tmp1 && tmp2) + { + /* 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; + } + + tmp1 = HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO); + tmp2 = HAL_IS_BIT_CLR(hadc->Instance->CR2, ADC_CR2_JEXTEN); + if(((hadc->Init.ContinuousConvMode == DISABLE) || tmp1) && tmp2) + { + /* DISABLE the ADC end of conversion interrupt for injected group */ + __HAL_ADC_DISABLE_IT(hadc, ADC_IT_JEOC); + } + + /* Conversion complete callback */ + HAL_ADCEx_InjectedConvCpltCallback(hadc); + + /* Clear the ADCx flag for injected end of conversion */ + __HAL_ADC_CLEAR_FLAG(hadc,ADC_FLAG_JEOC); + } + + tmp1 = __HAL_ADC_GET_FLAG(hadc, ADC_FLAG_AWD); + tmp2 = __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_AWD); + /* Check Analog watchdog flag */ + if(tmp1 && tmp2) + { + /* 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); + } + + tmp1 = __HAL_ADC_GET_FLAG(hadc, ADC_FLAG_OVR); + tmp2 = __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_OVR); + /* Check Overrun flag */ + if(tmp1 && tmp2) + { + /* Change ADC state to overrun state */ + hadc->State = HAL_ADC_STATE_ERROR; + + /* Set ADC error code to overrun */ + hadc->ErrorCode |= HAL_ADC_ERROR_OVR; + + /* Clear the Overrun flag */ + __HAL_ADC_CLEAR_FLAG(hadc,ADC_FLAG_OVR); + + /* Error callback */ + HAL_ADC_ErrorCallback(hadc); + } +} + +/** + * @brief Enables ADC DMA request after last transfer (Single-ADC mode) and enables ADC peripheral + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @param pData: The destination Buffer address. + * @param Length: The length of data to be transferred from ADC peripheral to memory. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_ADC_Start_DMA(ADC_HandleTypeDef* hadc, uint32_t* pData, uint32_t Length) +{ + __IO uint32_t counter = 0; + + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode)); + assert_param(IS_ADC_EXT_TRIG_EDGE(hadc->Init.ExternalTrigConvEdge)); + + /* Process locked */ + __HAL_LOCK(hadc); + + /* Enable ADC overrun interrupt */ + __HAL_ADC_ENABLE_IT(hadc, ADC_IT_OVR); + + /* Enable ADC DMA mode */ + hadc->Instance->CR2 |= ADC_CR2_DMA; + + /* 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 ; + + /* Enable the DMA Stream */ + HAL_DMA_Start_IT(hadc->DMA_Handle, (uint32_t)&hadc->Instance->DR, (uint32_t)pData, Length); + + /* Change ADC state */ + hadc->State = HAL_ADC_STATE_BUSY_REG; + + /* Process unlocked */ + __HAL_UNLOCK(hadc); + + /* Check if ADC peripheral is disabled in order to enable it and wait during + Tstab time the ADC's stabilization */ + if((hadc->Instance->CR2 & ADC_CR2_ADON) != ADC_CR2_ADON) + { + /* Enable the Peripheral */ + __HAL_ADC_ENABLE(hadc); + + /* Delay for ADC stabilization time */ + /* Compute number of CPU cycles to wait for */ + counter = (ADC_STAB_DELAY_US * (SystemCoreClock / 1000000)); + while(counter != 0) + { + counter--; + } + } + + /* if no external trigger present enable software conversion of regular channels */ + if((hadc->Instance->CR2 & ADC_CR2_EXTEN) == RESET) + { + /* Enable the selected ADC software conversion for regular group */ + hadc->Instance->CR2 |= ADC_CR2_SWSTART; + } + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief Disables ADC DMA (Single-ADC mode) and disables ADC peripheral + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_ADC_Stop_DMA(ADC_HandleTypeDef* hadc) +{ + /* Disable the Peripheral */ + __HAL_ADC_DISABLE(hadc); + + /* Disable ADC overrun interrupt */ + __HAL_ADC_DISABLE_IT(hadc, ADC_IT_OVR); + + /* Disable the selected ADC DMA mode */ + hadc->Instance->CR2 &= ~ADC_CR2_DMA; + + /* Disable the ADC DMA Stream */ + HAL_DMA_Abort(hadc->DMA_Handle); + + /* Change ADC state */ + hadc->State = HAL_ADC_STATE_READY; + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief Gets the converted value from data register of regular channel. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval Converted value + */ +uint32_t HAL_ADC_GetValue(ADC_HandleTypeDef* hadc) +{ + /* Return the selected ADC converted value */ + return hadc->Instance->DR; +} + +/** + * @brief Regular conversion complete callback in non blocking mode + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval None + */ +__weak void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_ADC_ConvCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Regular conversion half DMA transfer callback in non blocking mode + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval None + */ +__weak void HAL_ADC_ConvHalfCpltCallback(ADC_HandleTypeDef* hadc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_ADC_ConvHalfCpltCallback could be implemented in the user file + */ +} + +/** + * @brief Analog watchdog callback in non blocking mode + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval None + */ +__weak void HAL_ADC_LevelOutOfWindowCallback(ADC_HandleTypeDef* hadc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_ADC_LevelOoutOfWindowCallback could be implemented in the user file + */ +} + +/** + * @brief Error ADC callback. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval None + */ +__weak void HAL_ADC_ErrorCallback(ADC_HandleTypeDef *hadc) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_ADC_ErrorCallback could be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup ADC_Exported_Functions_Group3 Peripheral Control functions + * @brief Peripheral Control functions + * +@verbatim + =============================================================================== + ##### Peripheral Control functions ##### + =============================================================================== + [..] This section provides functions allowing to: + (+) Configure regular channels. + (+) Configure injected channels. + (+) Configure multimode. + (+) Configure the analog watch dog. + +@endverbatim + * @{ + */ + + /** + * @brief Configures for the selected ADC regular channel its corresponding + * rank in the sequencer and its sample time. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @param sConfig: ADC configuration structure. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_ADC_ConfigChannel(ADC_HandleTypeDef* hadc, ADC_ChannelConfTypeDef* sConfig) +{ + __IO uint32_t counter = 0; + + /* Check the parameters */ + 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); + + /* if ADC_Channel_10 ... ADC_Channel_18 is selected */ + if (sConfig->Channel > ADC_CHANNEL_9) + { + /* Clear the old sample time */ + hadc->Instance->SMPR1 &= ~ADC_SMPR1(ADC_SMPR1_SMP10, sConfig->Channel); + + /* Set the new sample time */ + hadc->Instance->SMPR1 |= ADC_SMPR1(sConfig->SamplingTime, sConfig->Channel); + } + else /* ADC_Channel include in ADC_Channel_[0..9] */ + { + /* Clear the old sample time */ + hadc->Instance->SMPR2 &= ~ADC_SMPR2(ADC_SMPR2_SMP0, sConfig->Channel); + + /* Set the new sample time */ + hadc->Instance->SMPR2 |= ADC_SMPR2(sConfig->SamplingTime, sConfig->Channel); + } + + /* For Rank 1 to 6 */ + if (sConfig->Rank < 7) + { + /* Clear the old SQx bits for the selected rank */ + hadc->Instance->SQR3 &= ~ADC_SQR3_RK(ADC_SQR3_SQ1, sConfig->Rank); + + /* Set the SQx bits for the selected rank */ + hadc->Instance->SQR3 |= 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 &= ~ADC_SQR2_RK(ADC_SQR2_SQ7, sConfig->Rank); + + /* Set the SQx bits for the selected rank */ + hadc->Instance->SQR2 |= 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 &= ~ADC_SQR1_RK(ADC_SQR1_SQ13, sConfig->Rank); + + /* Set the SQx bits for the selected rank */ + hadc->Instance->SQR1 |= ADC_SQR1_RK(sConfig->Channel, sConfig->Rank); + } + + /* if ADC1 Channel_18 is selected enable VBAT Channel */ + if ((hadc->Instance == ADC1) && (sConfig->Channel == ADC_CHANNEL_VBAT)) + { + /* Enable the VBAT channel*/ + ADC->CCR |= ADC_CCR_VBATE; + } + + /* if ADC1 Channel_16 or Channel_17 is selected enable TSVREFE Channel(Temperature sensor and VREFINT) */ + if ((hadc->Instance == ADC1) && ((sConfig->Channel == ADC_CHANNEL_TEMPSENSOR) || (sConfig->Channel == ADC_CHANNEL_VREFINT))) + { + /* Enable the TSVREFE channel*/ + ADC->CCR |= ADC_CCR_TSVREFE; + + if((sConfig->Channel == ADC_CHANNEL_TEMPSENSOR)) + { + /* Delay for temperature sensor stabilization time */ + /* Compute number of CPU cycles to wait for */ + counter = (ADC_TEMPSENSOR_DELAY_US * (SystemCoreClock / 1000000)); + while(counter != 0) + { + counter--; + } + } + } + + /* Process unlocked */ + __HAL_UNLOCK(hadc); + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief Configures the analog watchdog. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @param AnalogWDGConfig : pointer to an ADC_AnalogWDGConfTypeDef structure + * that contains the configuration information of ADC analog watchdog. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_ADC_AnalogWDGConfig(ADC_HandleTypeDef* hadc, ADC_AnalogWDGConfTypeDef* AnalogWDGConfig) +{ +#ifdef USE_FULL_ASSERT + uint32_t tmp = 0; +#endif /* USE_FULL_ASSERT */ + + /* Check the parameters */ + assert_param(IS_ADC_ANALOG_WATCHDOG(AnalogWDGConfig->WatchdogMode)); + assert_param(IS_ADC_CHANNEL(AnalogWDGConfig->Channel)); + assert_param(IS_FUNCTIONAL_STATE(AnalogWDGConfig->ITMode)); + +#ifdef USE_FULL_ASSERT + tmp = ADC_GET_RESOLUTION(hadc); + assert_param(IS_ADC_RANGE(tmp, AnalogWDGConfig->HighThreshold)); + assert_param(IS_ADC_RANGE(tmp, AnalogWDGConfig->LowThreshold)); +#endif /* USE_FULL_ASSERT */ + + /* Process locked */ + __HAL_LOCK(hadc); + + 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); + } + + /* Clear AWDEN, JAWDEN and AWDSGL bits */ + hadc->Instance->CR1 &= ~(ADC_CR1_AWDSGL | ADC_CR1_JAWDEN | ADC_CR1_AWDEN); + + /* Set the analog watchdog enable mode */ + hadc->Instance->CR1 |= AnalogWDGConfig->WatchdogMode; + + /* Set the high threshold */ + hadc->Instance->HTR = AnalogWDGConfig->HighThreshold; + + /* Set the low threshold */ + hadc->Instance->LTR = AnalogWDGConfig->LowThreshold; + + /* Clear the Analog watchdog channel select bits */ + hadc->Instance->CR1 &= ~ADC_CR1_AWDCH; + + /* Set the Analog watchdog channel */ + hadc->Instance->CR1 |= (uint32_t)((uint16_t)(AnalogWDGConfig->Channel)); + + /* Process unlocked */ + __HAL_UNLOCK(hadc); + + /* Return function status */ + return HAL_OK; +} + +/** + * @} + */ + +/** @defgroup ADC_Exported_Functions_Group4 ADC Peripheral State functions + * @brief ADC Peripheral State functions + * +@verbatim + =============================================================================== + ##### Peripheral State and errors functions ##### + =============================================================================== + [..] + This subsection provides functions allowing to + (+) Check the ADC state + (+) Check the ADC Error + +@endverbatim + * @{ + */ + +/** + * @brief return the ADC state + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval HAL state + */ +HAL_ADC_StateTypeDef HAL_ADC_GetState(ADC_HandleTypeDef* hadc) +{ + /* Return ADC state */ + return hadc->State; +} + +/** + * @brief Return the ADC error code + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval ADC Error Code + */ +uint32_t HAL_ADC_GetError(ADC_HandleTypeDef *hadc) +{ + return hadc->ErrorCode; +} + +/** + * @} + */ + +/** @addtogroup ADC_Private_Functions + * @{ + */ + +/** + * @brief Initializes the ADCx peripheral according to the specified parameters + * in the ADC_InitStruct without initializing the ADC MSP. + * @param hadc: pointer to a ADC_HandleTypeDef structure that contains + * the configuration information for the specified ADC. + * @retval None + */ +static void ADC_Init(ADC_HandleTypeDef* hadc) +{ + /* Set ADC parameters */ + /* Set the ADC clock prescaler */ + ADC->CCR &= ~(ADC_CCR_ADCPRE); + ADC->CCR |= hadc->Init.ClockPrescaler; + + /* Set ADC scan mode */ + hadc->Instance->CR1 &= ~(ADC_CR1_SCAN); + hadc->Instance->CR1 |= ADC_CR1_SCANCONV(hadc->Init.ScanConvMode); + + /* Set ADC resolution */ + hadc->Instance->CR1 &= ~(ADC_CR1_RES); + hadc->Instance->CR1 |= hadc->Init.Resolution; + + /* Set ADC data alignment */ + hadc->Instance->CR2 &= ~(ADC_CR2_ALIGN); + hadc->Instance->CR2 |= hadc->Init.DataAlign; + + /* 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) + { + /* Select external trigger to start conversion */ + hadc->Instance->CR2 &= ~(ADC_CR2_EXTSEL); + hadc->Instance->CR2 |= hadc->Init.ExternalTrigConv; + + /* Select external trigger polarity */ + hadc->Instance->CR2 &= ~(ADC_CR2_EXTEN); + hadc->Instance->CR2 |= hadc->Init.ExternalTrigConvEdge; + } + else + { + /* Reset the external trigger */ + hadc->Instance->CR2 &= ~(ADC_CR2_EXTSEL); + hadc->Instance->CR2 &= ~(ADC_CR2_EXTEN); + } + + /* Enable or disable ADC continuous conversion mode */ + hadc->Instance->CR2 &= ~(ADC_CR2_CONT); + hadc->Instance->CR2 |= ADC_CR2_CONTINUOUS(hadc->Init.ContinuousConvMode); + + if(hadc->Init.DiscontinuousConvMode != DISABLE) + { + assert_param(IS_ADC_REGULAR_DISC_NUMBER(hadc->Init.NbrOfDiscConversion)); + + /* Enable the selected ADC regular discontinuous mode */ + hadc->Instance->CR1 |= (uint32_t)ADC_CR1_DISCEN; + + /* Set the number of channels to be converted in discontinuous mode */ + hadc->Instance->CR1 &= ~(ADC_CR1_DISCNUM); + hadc->Instance->CR1 |= ADC_CR1_DISCONTINUOUS(hadc->Init.NbrOfDiscConversion); + } + else + { + /* Disable the selected ADC regular discontinuous mode */ + hadc->Instance->CR1 &= ~(ADC_CR1_DISCEN); + } + + /* Set ADC number of conversion */ + hadc->Instance->SQR1 &= ~(ADC_SQR1_L); + hadc->Instance->SQR1 |= ADC_SQR1(hadc->Init.NbrOfConversion); + + /* Enable or disable ADC DMA continuous request */ + hadc->Instance->CR2 &= ~(ADC_CR2_DDS); + hadc->Instance->CR2 |= ADC_CR2_DMAContReq(hadc->Init.DMAContinuousRequests); + + /* Enable or disable ADC end of conversion selection */ + hadc->Instance->CR2 &= ~(ADC_CR2_EOCS); + hadc->Instance->CR2 |= ADC_CR2_EOCSelection(hadc->Init.EOCSelection); +} + +/** + * @brief DMA transfer complete callback. + * @param hdma: pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void ADC_DMAConvCplt(DMA_HandleTypeDef *hdma) +{ + ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + + /* 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; + } + + HAL_ADC_ConvCpltCallback(hadc); +} + +/** + * @brief DMA half transfer complete callback. + * @param hdma: pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void ADC_DMAHalfConvCplt(DMA_HandleTypeDef *hdma) +{ + ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + /* Conversion complete callback */ + HAL_ADC_ConvHalfCpltCallback(hadc); +} + +/** + * @brief DMA error callback + * @param hdma: pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void ADC_DMAError(DMA_HandleTypeDef *hdma) +{ + ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + hadc->State= HAL_ADC_STATE_ERROR; + /* Set ADC error code to DMA error */ + hadc->ErrorCode |= HAL_ADC_ERROR_DMA; + HAL_ADC_ErrorCallback(hadc); +} + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_ADC_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3