/**
******************************************************************************
* @file stm32l1xx_hal_adc_ex.c
* @author MCD Application Team
* @brief This file provides firmware functions to manage the following
* functionalities of the Analog to Digital Convertor (ADC)
* peripheral:
* + Operation functions
* ++ Start, stop, get result of conversions of injected
* group, using 2 possible modes: polling, interruption.
* + Control functions
* ++ Channels configuration on injected group
* Other functions (generic functions) are available in file
* "stm32l1xx_hal_adc.c".
*
@verbatim
[..]
(@) Sections "ADC peripheral features" and "How to use this driver" are
available in file of generic functions "stm32l1xx_hal_adc.c".
[..]
@endverbatim
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2017 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32l1xx_hal.h"
/** @addtogroup STM32L1xx_HAL_Driver
* @{
*/
/** @defgroup ADCEx ADCEx
* @brief ADC Extension HAL module driver
* @{
*/
#ifdef HAL_ADC_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/** @defgroup ADCEx_Private_Constants ADCEx Private Constants
* @{
*/
/* ADC conversion cycles (unit: ADC clock cycles) */
/* (selected sampling time + conversion time of 12 ADC clock cycles, with */
/* resolution 12 bits) */
#define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_4CYCLE5 ( 16U)
#define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_9CYCLES ( 21U)
#define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_16CYCLES ( 28U)
#define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_24CYCLES ( 36U)
#define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_48CYCLES ( 60U)
#define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_96CYCLES (108U)
#define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_192CYCLES (204U)
#define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_384CYCLES (396U)
/* Delay for temperature sensor stabilization time. */
/* Maximum delay is 10us (refer to device datasheet, parameter tSTART). */
/* Unit: us */
#define ADC_TEMPSENSOR_DELAY_US (10U)
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup ADCEx_Exported_Functions ADCEx Exported Functions
* @{
*/
/** @defgroup ADCEx_Exported_Functions_Group1 ADC Extended IO operation functions
* @brief ADC Extended Input and Output operation functions
*
@verbatim
===============================================================================
##### IO operation functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) 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.
@endverbatim
* @{
*/
/**
* @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 tmp_hal_status = HAL_OK;
/* Check the parameters */
assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
/* Process locked */
__HAL_LOCK(hadc);
/* Enable the ADC peripheral */
tmp_hal_status = ADC_Enable(hadc);
/* Start conversion if ADC is effectively enabled */
if (tmp_hal_status == HAL_OK)
{
/* Set ADC state */
/* - Clear state bitfield related to injected group conversion results */
/* - Set state bitfield related to injected operation */
ADC_STATE_CLR_SET(hadc->State,
HAL_ADC_STATE_READY | HAL_ADC_STATE_INJ_EOC,
HAL_ADC_STATE_INJ_BUSY);
/* Check if a regular conversion is ongoing */
/* Note: On this device, there is no ADC error code fields related to */
/* conversions on group injected only. In case of conversion on */
/* going on group regular, no error code is reset. */
if (HAL_IS_BIT_CLR(hadc->State, HAL_ADC_STATE_REG_BUSY))
{
/* Reset ADC all error code fields */
ADC_CLEAR_ERRORCODE(hadc);
}
/* Process unlocked */
/* Unlock before starting ADC conversions: in case of potential */
/* interruption, to let the process to ADC IRQ Handler. */
__HAL_UNLOCK(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 conversion of injected group. */
/* If software start has been selected, conversion starts immediately. */
/* 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 (ADC_IS_SOFTWARE_START_INJECTED(hadc) &&
HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) )
{
/* Enable ADC software conversion for injected channels */
SET_BIT(hadc->Instance->CR2, ADC_CR2_JSWSTART);
}
}
/* Return function status */
return tmp_hal_status;
}
/**
* @brief Stop conversion of injected channels. Disable ADC peripheral if
* no regular conversion is on going.
* @note If ADC must be disabled and if conversion is on going on
* regular group, function HAL_ADC_Stop must be used to stop both
* injected and regular groups, and disable the ADC.
* @note If injected group mode auto-injection is enabled,
* function HAL_ADC_Stop must be used.
* @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 tmp_hal_status = 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_REG_BUSY) == RESET) &&
HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) )
{
/* Stop potential conversion on going, on regular and injected groups */
/* Disable ADC peripheral */
tmp_hal_status = ADC_ConversionStop_Disable(hadc);
/* Check if ADC is effectively disabled */
if (tmp_hal_status == HAL_OK)
{
/* Set ADC state */
ADC_STATE_CLR_SET(hadc->State,
HAL_ADC_STATE_REG_BUSY | HAL_ADC_STATE_INJ_BUSY,
HAL_ADC_STATE_READY);
}
}
else
{
/* Update ADC state machine to error */
SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
tmp_hal_status = HAL_ERROR;
}
/* Process unlocked */
__HAL_UNLOCK(hadc);
/* Return function status */
return tmp_hal_status;
}
/**
* @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 and polling for each */
/* conversion. */
/* Note: Variable "conversion_timeout_cpu_cycles" set to offset 28 CPU */
/* cycles to compensate number of CPU cycles for processing of variable */
/* "conversion_timeout_cpu_cycles_max" */
uint32_t conversion_timeout_cpu_cycles = 28;
uint32_t conversion_timeout_cpu_cycles_max = 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 setting "EOCSelection" is set to poll for each single conversion, */
/* management of polling depends on setting of injected group sequencer: */
/* - 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 ADC clock cycles) and APB2/ADC clock prescalers (depending on */
/* settings, conversion time range can vary from 8 to several thousands */
/* of CPU cycles). */
/* Note: On STM32L1, setting "EOCSelection" is related to regular group */
/* only, by hardware. For compatibility with other STM32 devices, */
/* this setting is related also to injected group by software. */
if (((hadc->Instance->JSQR & ADC_JSQR_JL) == RESET) ||
(hadc->Init.EOCSelection != ADC_EOC_SINGLE_CONV) )
{
/* 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))
{
/* New check to avoid false timeout detection in case of preemption */
if(HAL_IS_BIT_CLR(hadc->Instance->SR, ADC_FLAG_JEOC))
{
/* Update ADC state machine to timeout */
SET_BIT(hadc->State, HAL_ADC_STATE_TIMEOUT);
/* Process unlocked */
__HAL_UNLOCK(hadc);
return HAL_TIMEOUT;
}
}
}
}
}
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 = ADC_GET_CLOCK_PRESCALER_DECIMAL(hadc);
conversion_timeout_cpu_cycles_max *= ADC_CONVCYCLES_MAX_RANGE(hadc);
/* 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))
{
/* New check to avoid false timeout detection in case of preemption */
if(conversion_timeout_cpu_cycles < conversion_timeout_cpu_cycles_max)
{
/* Update ADC state machine to timeout */
SET_BIT(hadc->State, HAL_ADC_STATE_TIMEOUT);
/* Process unlocked */
__HAL_UNLOCK(hadc);
return HAL_TIMEOUT;
}
}
}
conversion_timeout_cpu_cycles ++;
}
}
/* 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_ADCEx_InjectedGetValue(). */
if (hadc->Init.LowPowerAutoWait == DISABLE)
{
/* Clear injected group conversion flag */
__HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JSTRT | ADC_FLAG_JEOC);
}
/* Update ADC state machine */
SET_BIT(hadc->State, HAL_ADC_STATE_INJ_EOC);
/* Determine whether any further conversion upcoming on group injected */
/* by external trigger, continuous mode or scan sequence on going. */
/* Note: On STM32L1, there is no independent flag of end of sequence. */
/* The test of scan sequence on going is done either with scan */
/* sequence disabled or with end of conversion flag set to */
/* of end of sequence. */
if(ADC_IS_SOFTWARE_START_INJECTED(hadc) &&
(HAL_IS_BIT_CLR(hadc->Instance->JSQR, ADC_JSQR_JL) ||
HAL_IS_BIT_CLR(hadc->Instance->CR2, ADC_CR2_EOCS) ) &&
(HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) &&
(ADC_IS_SOFTWARE_START_REGULAR(hadc) &&
(hadc->Init.ContinuousConvMode == DISABLE) ) ) )
{
/* Set ADC state */
CLEAR_BIT(hadc->State, HAL_ADC_STATE_INJ_BUSY);
if (HAL_IS_BIT_CLR(hadc->State, HAL_ADC_STATE_REG_BUSY))
{
SET_BIT(hadc->State, HAL_ADC_STATE_READY);
}
}
/* Return ADC state */
return HAL_OK;
}
/**
* @brief Enables ADC, starts conversion of injected group with interruption.
* - JEOC (end of conversion of injected group)
* 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 tmp_hal_status = HAL_OK;
/* Check the parameters */
assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
/* Process locked */
__HAL_LOCK(hadc);
/* Enable the ADC peripheral */
tmp_hal_status = ADC_Enable(hadc);
/* Start conversion if ADC is effectively enabled */
if (tmp_hal_status == HAL_OK)
{
/* Set ADC state */
/* - Clear state bitfield related to injected group conversion results */
/* - Set state bitfield related to injected operation */
ADC_STATE_CLR_SET(hadc->State,
HAL_ADC_STATE_READY | HAL_ADC_STATE_INJ_EOC,
HAL_ADC_STATE_INJ_BUSY);
/* Check if a regular conversion is ongoing */
/* Note: On this device, there is no ADC error code fields related to */
/* conversions on group injected only. In case of conversion on */
/* going on group regular, no error code is reset. */
if (HAL_IS_BIT_CLR(hadc->State, HAL_ADC_STATE_REG_BUSY))
{
/* Reset ADC all error code fields */
ADC_CLEAR_ERRORCODE(hadc);
}
/* Process unlocked */
/* Unlock before starting ADC conversions: in case of potential */
/* interruption, to let the process to ADC IRQ Handler. */
__HAL_UNLOCK(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);
/* Enable conversion of injected group. */
/* If software start has been selected, conversion starts immediately. */
/* 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 (ADC_IS_SOFTWARE_START_INJECTED(hadc) &&
HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) )
{
/* Enable ADC software conversion for injected channels */
SET_BIT(hadc->Instance->CR2, ADC_CR2_JSWSTART);
}
}
/* Return function status */
return tmp_hal_status;
}
/**
* @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 and if conversion is on going on
* regular group, function HAL_ADC_Stop must be used to stop both
* injected and regular groups, and disable the ADC.
* @note If injected group mode auto-injection is enabled,
* function HAL_ADC_Stop must be used.
* @param hadc ADC handle
* @retval None
*/
HAL_StatusTypeDef HAL_ADCEx_InjectedStop_IT(ADC_HandleTypeDef* hadc)
{
HAL_StatusTypeDef tmp_hal_status = 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_REG_BUSY) == RESET) &&
HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) )
{
/* Stop potential conversion on going, on regular and injected groups */
/* Disable ADC peripheral */
tmp_hal_status = ADC_ConversionStop_Disable(hadc);
/* Check if ADC is effectively disabled */
if (tmp_hal_status == HAL_OK)
{
/* Disable ADC end of conversion interrupt for injected channels */
__HAL_ADC_DISABLE_IT(hadc, ADC_IT_JEOC);
/* Set ADC state */
ADC_STATE_CLR_SET(hadc->State,
HAL_ADC_STATE_REG_BUSY | HAL_ADC_STATE_INJ_BUSY,
HAL_ADC_STATE_READY);
}
}
else
{
/* Update ADC state machine to error */
SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
tmp_hal_status = HAL_ERROR;
}
/* Process unlocked */
__HAL_UNLOCK(hadc);
/* Return function status */
return tmp_hal_status;
}
/**
* @brief Get ADC injected group conversion result.
* @note Reading register JDRx automatically clears ADC flag JEOC
* (ADC group injected end of unitary conversion).
* @note This function does not clear ADC flag JEOS
* (ADC group injected end of sequence conversion)
* Occurrence of flag JEOS rising:
* - If sequencer is composed of 1 rank, flag JEOS is equivalent
* to flag JEOC.
* - If sequencer is composed of several ranks, during the scan
* sequence flag JEOC only is raised, at the end of the scan sequence
* both flags JEOC and EOS are raised.
* Flag JEOS must not be cleared by this function because
* it would not be compliant with low power features
* (feature low power auto-wait, not available on all STM32 families).
* To clear this flag, either use function:
* in programming model IT: @ref HAL_ADC_IRQHandler(), in programming
* model polling: @ref HAL_ADCEx_InjectedPollForConversion()
* or @ref __HAL_ADC_CLEAR_FLAG(&hadc, ADC_FLAG_JEOS).
* @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 ADC group injected conversion data
*/
uint32_t HAL_ADCEx_InjectedGetValue(ADC_HandleTypeDef* hadc, uint32_t InjectedRank)
{
uint32_t tmp_jdr = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
assert_param(IS_ADC_INJECTED_RANK(InjectedRank));
/* Get ADC converted value */
switch(InjectedRank)
{
case ADC_INJECTED_RANK_4:
tmp_jdr = hadc->Instance->JDR4;
break;
case ADC_INJECTED_RANK_3:
tmp_jdr = hadc->Instance->JDR3;
break;
case ADC_INJECTED_RANK_2:
tmp_jdr = hadc->Instance->JDR2;
break;
case ADC_INJECTED_RANK_1:
default:
tmp_jdr = hadc->Instance->JDR1;
break;
}
/* Return ADC converted value */
return tmp_jdr;
}
/**
* @brief Injected conversion complete callback in non blocking mode
* @param hadc ADC handle
* @retval None
*/
__weak void HAL_ADCEx_InjectedConvCpltCallback(ADC_HandleTypeDef* hadc)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hadc);
/* NOTE : This function Should not be modified, when the callback is needed,
the HAL_ADCEx_InjectedConvCpltCallback could be implemented in the user file
*/
}
/**
* @}
*/
/** @defgroup ADCEx_Exported_Functions_Group2 ADC Extended Peripheral Control functions
* @brief ADC Extended Peripheral Control functions
*
@verbatim
===============================================================================
##### Peripheral Control functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) Configure channels on injected group
@endverbatim
* @{
*/
/**
* @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.
* @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 tmp_hal_status = HAL_OK;
__IO uint32_t wait_loop_index = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
assert_param(IS_ADC_CHANNEL(sConfigInjected->InjectedChannel));
assert_param(IS_ADC_SAMPLE_TIME(sConfigInjected->InjectedSamplingTime));
assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->AutoInjectedConv));
assert_param(IS_ADC_EXTTRIGINJEC(sConfigInjected->ExternalTrigInjecConv));
assert_param(IS_ADC_RANGE(ADC_RESOLUTION_12B, sConfigInjected->InjectedOffset));
if(hadc->Init.ScanConvMode != ADC_SCAN_DISABLE)
{
assert_param(IS_ADC_INJECTED_RANK(sConfigInjected->InjectedRank));
assert_param(IS_ADC_INJECTED_NB_CONV(sConfigInjected->InjectedNbrOfConversion));
assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->InjectedDiscontinuousConvMode));
}
if(sConfigInjected->ExternalTrigInjecConv != ADC_INJECTED_SOFTWARE_START)
{
assert_param(IS_ADC_EXTTRIGINJEC_EDGE(sConfigInjected->ExternalTrigInjecConvEdge));
}
/* 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 */
MODIFY_REG(hadc->Instance->JSQR ,
ADC_JSQR_JL |
ADC_JSQR_JSQ4 |
ADC_JSQR_JSQ3 |
ADC_JSQR_JSQ2 |
ADC_JSQR_JSQ1 ,
ADC_JSQR_RK_JL(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 */
SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
tmp_hal_status = HAL_ERROR;
}
}
else
{
/* 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)
{
/* Clear the old SQx bits for the selected rank */
/* Set the SQx bits for the selected rank */
MODIFY_REG(hadc->Instance->JSQR ,
ADC_JSQR_JL |
ADC_JSQR_RK_JL(ADC_JSQR_JSQ1,
sConfigInjected->InjectedRank,
sConfigInjected->InjectedNbrOfConversion) ,
ADC_JSQR_JL_SHIFT(sConfigInjected->InjectedNbrOfConversion) |
ADC_JSQR_RK_JL(sConfigInjected->InjectedChannel,
sConfigInjected->InjectedRank,
sConfigInjected->InjectedNbrOfConversion) );
}
else
{
/* Clear the old SQx bits for the selected rank */
MODIFY_REG(hadc->Instance->JSQR ,
ADC_JSQR_JL |
ADC_JSQR_RK_JL(ADC_JSQR_JSQ1,
sConfigInjected->InjectedRank,
sConfigInjected->InjectedNbrOfConversion) ,
0x00000000 );
}
}
/* 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 (sConfigInjected->ExternalTrigInjecConv != ADC_INJECTED_SOFTWARE_START)
{
MODIFY_REG(hadc->Instance->CR2 ,
ADC_CR2_JEXTEN |
ADC_CR2_JEXTSEL ,
sConfigInjected->ExternalTrigInjecConv |
sConfigInjected->ExternalTrigInjecConvEdge );
}
else
{
MODIFY_REG(hadc->Instance->CR2,
ADC_CR2_JEXTEN |
ADC_CR2_JEXTSEL ,
0x00000000 );
}
/* Configuration of injected group */
/* Parameters update conditioned to ADC state: */
/* Parameters that can be updated only when ADC is disabled: */
/* - Automatic injected conversion */
/* - Injected discontinuous mode */
if ((ADC_IS_ENABLE(hadc) == RESET))
{
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)
{
SET_BIT(hadc->Instance->CR1, ADC_CR1_JAUTO);
}
else
{
/* Update ADC state machine to error */
SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
tmp_hal_status = HAL_ERROR;
}
}
/* Injected discontinuous can be enabled only if auto-injected mode is */
/* disabled. */
if (sConfigInjected->InjectedDiscontinuousConvMode == ENABLE)
{
if (sConfigInjected->AutoInjectedConv == DISABLE)
{
SET_BIT(hadc->Instance->CR1, ADC_CR1_JDISCEN);
}
else
{
/* Update ADC state machine to error */
SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
tmp_hal_status = HAL_ERROR;
}
}
}
/* Channel sampling time configuration */
/* For InjectedChannels 0 to 9 */
if (sConfigInjected->InjectedChannel < ADC_CHANNEL_10)
{
MODIFY_REG(hadc->Instance->SMPR3,
ADC_SMPR3(ADC_SMPR3_SMP0, sConfigInjected->InjectedChannel),
ADC_SMPR3(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel) );
}
/* For InjectedChannels 10 to 19 */
else if (sConfigInjected->InjectedChannel < ADC_CHANNEL_20)
{
MODIFY_REG(hadc->Instance->SMPR2,
ADC_SMPR2(ADC_SMPR2_SMP10, sConfigInjected->InjectedChannel),
ADC_SMPR2(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel) );
}
/* For InjectedChannels 20 to 26 for devices Cat.1, Cat.2, Cat.3 */
/* For InjectedChannels 20 to 29 for devices Cat4, Cat.5 */
else if (sConfigInjected->InjectedChannel <= ADC_SMPR1_CHANNEL_MAX)
{
MODIFY_REG(hadc->Instance->SMPR1,
ADC_SMPR1(ADC_SMPR1_SMP20, sConfigInjected->InjectedChannel),
ADC_SMPR1(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel) );
}
/* For InjectedChannels 30 to 31 for devices Cat4, Cat.5 */
else
{
ADC_SMPR0_CHANNEL_SET(hadc, sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel);
}
/* Configure the offset: offset enable/disable, InjectedChannel, offset value */
switch(sConfigInjected->InjectedRank)
{
case 1:
/* Set injected channel 1 offset */
MODIFY_REG(hadc->Instance->JOFR1,
ADC_JOFR1_JOFFSET1,
sConfigInjected->InjectedOffset);
break;
case 2:
/* Set injected channel 2 offset */
MODIFY_REG(hadc->Instance->JOFR2,
ADC_JOFR2_JOFFSET2,
sConfigInjected->InjectedOffset);
break;
case 3:
/* Set injected channel 3 offset */
MODIFY_REG(hadc->Instance->JOFR3,
ADC_JOFR3_JOFFSET3,
sConfigInjected->InjectedOffset);
break;
case 4:
default:
MODIFY_REG(hadc->Instance->JOFR4,
ADC_JOFR4_JOFFSET4,
sConfigInjected->InjectedOffset);
break;
}
/* If ADC1 Channel_16 or Channel_17 is selected, enable Temperature sensor */
/* and VREFINT measurement path. */
if ((sConfigInjected->InjectedChannel == ADC_CHANNEL_TEMPSENSOR) ||
(sConfigInjected->InjectedChannel == ADC_CHANNEL_VREFINT) )
{
SET_BIT(ADC->CCR, ADC_CCR_TSVREFE);
if ((sConfigInjected->InjectedChannel == ADC_CHANNEL_TEMPSENSOR))
{
/* Delay for temperature sensor stabilization time */
/* Compute number of CPU cycles to wait for */
wait_loop_index = (ADC_TEMPSENSOR_DELAY_US * (SystemCoreClock / 1000000));
while(wait_loop_index != 0)
{
wait_loop_index--;
}
}
}
/* Process unlocked */
__HAL_UNLOCK(hadc);
/* Return function status */
return tmp_hal_status;
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_ADC_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/