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stm32f30x_adc.c
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stm32f30x_adc.c
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/**
******************************************************************************
* @file stm32f30x_adc.c
* @author MCD Application Team
* @version V1.1.1
* @date 04-April-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the Analog to Digital Convertor (ADC) peripheral:
* + Initialization and Configuration
* + Analog Watchdog configuration
* + Temperature Sensor, Vbat & Vrefint (Internal Reference Voltage) management
* + Regular Channels Configuration
* + Regular Channels DMA Configuration
* + Injected channels Configuration
* + Interrupts and flags management
* + Dual mode configuration
*
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
(#) select the ADC clock using the function RCC_ADCCLKConfig()
(#) Enable the ADC interface clock using RCC_AHBPeriphClockCmd();
(#) ADC pins configuration
(++) Enable the clock for the ADC GPIOs using the following function:
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOx, ENABLE);
(++) Configure these ADC pins in analog mode using GPIO_Init();
(#) Configure the ADC conversion resolution, data alignment, external
trigger and edge, sequencer lenght and Enable/Disable the continuous mode
using the ADC_Init() function.
(#) Activate the ADC peripheral using ADC_Cmd() function.
*** ADC channels group configuration ***
========================================
[..]
(+) To configure the ADC channels features, use ADC_Init(), ADC_InjectedInit()
and/or ADC_RegularChannelConfig() functions.
(+) To activate the continuous mode, use the ADC_ContinuousModeCmd()
function.
(+) To activate the Discontinuous mode, use the ADC_DiscModeCmd() functions.
(+) To activate the overrun mode, use the ADC_OverrunModeCmd() functions.
(+) To activate the calibration mode, use the ADC_StartCalibration() functions.
(+) To read the ADC converted values, use the ADC_GetConversionValue()
function.
*** DMA for ADC channels features configuration ***
===================================================
[..]
(+) To enable the DMA mode for ADC channels group, use the ADC_DMACmd() function.
(+) To configure the DMA transfer request, use ADC_DMAConfig() function.
@endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f30x_adc.h"
#include "stm32f30x_rcc.h"
/** @addtogroup STM32F30x_StdPeriph_Driver
* @{
*/
/** @defgroup ADC
* @brief ADC driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* CFGR register Mask */
#define CFGR_CLEAR_Mask ((uint32_t)0xFDFFC007)
/* JSQR register Mask */
#define JSQR_CLEAR_Mask ((uint32_t)0x00000000)
/* ADC ADON mask */
#define CCR_CLEAR_MASK ((uint32_t)0xFFFC10E0)
/* ADC JDRx registers offset */
#define JDR_Offset ((uint8_t)0x80)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup ADC_Private_Functions
* @{
*/
/** @defgroup ADC_Group1 Initialization and Configuration functions
* @brief Initialization and Configuration functions
*
@verbatim
===============================================================================
##### Initialization and Configuration functions #####
===============================================================================
[..]
This section provides functions allowing to:
(#) Initialize and configure the ADC injected and/or regular channels and dual mode.
(#) Management of the calibration process
(#) ADC Power-on Power-off
(#) Single ended or differential mode
(#) Enabling the queue of context and the auto delay mode
(#) The number of ADC conversions that will be done using the sequencer for regular
channel group
(#) Enable or disable the ADC peripheral
@endverbatim
* @{
*/
/**
* @brief Deinitializes the ADCx peripheral registers to their default reset values.
* @param ADCx: where x can be 1, 2,3 or 4 to select the ADC peripheral.
* @retval None
*/
void ADC_DeInit(ADC_TypeDef* ADCx)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
if((ADCx == ADC1) || (ADCx == ADC2))
{
/* Enable ADC1/ADC2 reset state */
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_ADC12, ENABLE);
/* Release ADC1/ADC2 from reset state */
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_ADC12, DISABLE);
}
else if((ADCx == ADC3) || (ADCx == ADC4))
{
/* Enable ADC3/ADC4 reset state */
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_ADC34, ENABLE);
/* Release ADC3/ADC4 from reset state */
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_ADC34, DISABLE);
}
}
/**
* @brief Initializes the ADCx peripheral according to the specified parameters
* in the ADC_InitStruct.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param ADC_InitStruct: pointer to an ADC_InitTypeDef structure that contains
* the configuration information for the specified ADC peripheral.
* @retval None
*/
void ADC_Init(ADC_TypeDef* ADCx, ADC_InitTypeDef* ADC_InitStruct)
{
uint32_t tmpreg1 = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_CONVMODE(ADC_InitStruct->ADC_ContinuousConvMode));
assert_param(IS_ADC_RESOLUTION(ADC_InitStruct->ADC_Resolution));
assert_param(IS_ADC_EXT_TRIG(ADC_InitStruct->ADC_ExternalTrigConvEvent));
assert_param(IS_EXTERNALTRIG_EDGE(ADC_InitStruct->ADC_ExternalTrigEventEdge));
assert_param(IS_ADC_DATA_ALIGN(ADC_InitStruct->ADC_DataAlign));
assert_param(IS_ADC_OVRUNMODE(ADC_InitStruct->ADC_OverrunMode));
assert_param(IS_ADC_AUTOINJECMODE(ADC_InitStruct->ADC_AutoInjMode));
assert_param(IS_ADC_REGULAR_LENGTH(ADC_InitStruct->ADC_NbrOfRegChannel));
/*---------------------------- ADCx CFGR Configuration -----------------*/
/* Get the ADCx CFGR value */
tmpreg1 = ADCx->CFGR;
/* Clear SCAN bit */
tmpreg1 &= CFGR_CLEAR_Mask;
/* Configure ADCx: scan conversion mode */
/* Set SCAN bit according to ADC_ScanConvMode value */
tmpreg1 |= (uint32_t)ADC_InitStruct->ADC_ContinuousConvMode |
ADC_InitStruct->ADC_Resolution|
ADC_InitStruct->ADC_ExternalTrigConvEvent|
ADC_InitStruct->ADC_ExternalTrigEventEdge|
ADC_InitStruct->ADC_DataAlign|
ADC_InitStruct->ADC_OverrunMode|
ADC_InitStruct->ADC_AutoInjMode;
/* Write to ADCx CFGR */
ADCx->CFGR = tmpreg1;
/*---------------------------- ADCx SQR1 Configuration -----------------*/
/* Get the ADCx SQR1 value */
tmpreg1 = ADCx->SQR1;
/* Clear L bits */
tmpreg1 &= ~(uint32_t)(ADC_SQR1_L);
/* Configure ADCx: regular channel sequence length */
/* Set L bits according to ADC_NbrOfRegChannel value */
tmpreg1 |= (uint32_t) (ADC_InitStruct->ADC_NbrOfRegChannel - 1);
/* Write to ADCx SQR1 */
ADCx->SQR1 = tmpreg1;
}
/**
* @brief Fills each ADC_InitStruct member with its default value.
* @param ADC_InitStruct : pointer to an ADC_InitTypeDef structure which will be initialized.
* @retval None
*/
void ADC_StructInit(ADC_InitTypeDef* ADC_InitStruct)
{
/* Reset ADC init structure parameters values */
ADC_InitStruct->ADC_ContinuousConvMode = DISABLE;
ADC_InitStruct->ADC_Resolution = ADC_Resolution_12b;
ADC_InitStruct->ADC_ExternalTrigConvEvent = ADC_ExternalTrigConvEvent_0;
ADC_InitStruct->ADC_ExternalTrigEventEdge = ADC_ExternalTrigEventEdge_None;
ADC_InitStruct->ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStruct->ADC_OverrunMode = DISABLE;
ADC_InitStruct->ADC_AutoInjMode = DISABLE;
ADC_InitStruct->ADC_NbrOfRegChannel = 1;
}
/**
* @brief Initializes the ADCx peripheral according to the specified parameters
* in the ADC_InitStruct.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param ADC_InjectInitStruct: pointer to an ADC_InjecInitTypeDef structure that contains
* the configuration information for the specified ADC injected channel.
* @retval None
*/
void ADC_InjectedInit(ADC_TypeDef* ADCx, ADC_InjectedInitTypeDef* ADC_InjectedInitStruct)
{
uint32_t tmpreg1 = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_EXT_INJEC_TRIG(ADC_InjectedInitStruct->ADC_ExternalTrigInjecConvEvent));
assert_param(IS_EXTERNALTRIGINJ_EDGE(ADC_InjectedInitStruct->ADC_ExternalTrigInjecEventEdge));
assert_param(IS_ADC_INJECTED_LENGTH(ADC_InjectedInitStruct->ADC_NbrOfInjecChannel));
assert_param(IS_ADC_INJECTED_CHANNEL(ADC_InjectedInitStruct->ADC_InjecSequence1));
assert_param(IS_ADC_INJECTED_CHANNEL(ADC_InjectedInitStruct->ADC_InjecSequence2));
assert_param(IS_ADC_INJECTED_CHANNEL(ADC_InjectedInitStruct->ADC_InjecSequence3));
assert_param(IS_ADC_INJECTED_CHANNEL(ADC_InjectedInitStruct->ADC_InjecSequence4));
/*---------------------------- ADCx JSQR Configuration -----------------*/
/* Get the ADCx JSQR value */
tmpreg1 = ADCx->JSQR;
/* Clear L bits */
tmpreg1 &= JSQR_CLEAR_Mask;
/* Configure ADCx: Injected channel sequence length, external trigger,
external trigger edge and sequences
*/
tmpreg1 = (uint32_t) ((ADC_InjectedInitStruct->ADC_NbrOfInjecChannel - (uint8_t)1) |
ADC_InjectedInitStruct->ADC_ExternalTrigInjecConvEvent |
ADC_InjectedInitStruct->ADC_ExternalTrigInjecEventEdge |
(uint32_t)((ADC_InjectedInitStruct->ADC_InjecSequence1) << 8) |
(uint32_t)((ADC_InjectedInitStruct->ADC_InjecSequence2) << 14) |
(uint32_t)((ADC_InjectedInitStruct->ADC_InjecSequence3) << 20) |
(uint32_t)((ADC_InjectedInitStruct->ADC_InjecSequence4) << 26));
/* Write to ADCx SQR1 */
ADCx->JSQR = tmpreg1;
}
/**
* @brief Fills each ADC_InjectedInitStruct member with its default value.
* @param ADC_InjectedInitStruct : pointer to an ADC_InjectedInitTypeDef structure which will be initialized.
* @retval None
*/
void ADC_InjectedStructInit(ADC_InjectedInitTypeDef* ADC_InjectedInitStruct)
{
ADC_InjectedInitStruct->ADC_ExternalTrigInjecConvEvent = ADC_ExternalTrigInjecConvEvent_0;
ADC_InjectedInitStruct->ADC_ExternalTrigInjecEventEdge = ADC_ExternalTrigInjecEventEdge_None;
ADC_InjectedInitStruct->ADC_NbrOfInjecChannel = 1;
ADC_InjectedInitStruct->ADC_InjecSequence1 = ADC_InjectedChannel_1;
ADC_InjectedInitStruct->ADC_InjecSequence2 = ADC_InjectedChannel_1;
ADC_InjectedInitStruct->ADC_InjecSequence3 = ADC_InjectedChannel_1;
ADC_InjectedInitStruct->ADC_InjecSequence4 = ADC_InjectedChannel_1;
}
/**
* @brief Initializes the ADCs peripherals according to the specified parameters
* in the ADC_CommonInitStruct.
* @param ADCx: where x can be 1 or 4 to select the ADC peripheral.
* @param ADC_CommonInitStruct: pointer to an ADC_CommonInitTypeDef structure
* that contains the configuration information for All ADCs peripherals.
* @retval None
*/
void ADC_CommonInit(ADC_TypeDef* ADCx, ADC_CommonInitTypeDef* ADC_CommonInitStruct)
{
uint32_t tmpreg1 = 0;
/* Check the parameters */
assert_param(IS_ADC_MODE(ADC_CommonInitStruct->ADC_Mode));
assert_param(IS_ADC_CLOCKMODE(ADC_CommonInitStruct->ADC_Clock));
assert_param(IS_ADC_DMA_MODE(ADC_CommonInitStruct->ADC_DMAMode));
assert_param(IS_ADC_DMA_ACCESS_MODE(ADC_CommonInitStruct->ADC_DMAAccessMode));
assert_param(IS_ADC_TWOSAMPLING_DELAY(ADC_CommonInitStruct->ADC_TwoSamplingDelay));
if((ADCx == ADC1) || (ADCx == ADC2))
{
/* Get the ADC CCR value */
tmpreg1 = ADC1_2->CCR;
/* Clear MULTI, DELAY, DMA and ADCPRE bits */
tmpreg1 &= CCR_CLEAR_MASK;
}
else
{
/* Get the ADC CCR value */
tmpreg1 = ADC3_4->CCR;
/* Clear MULTI, DELAY, DMA and ADCPRE bits */
tmpreg1 &= CCR_CLEAR_MASK;
}
/*---------------------------- ADC CCR Configuration -----------------*/
/* Configure ADCx: Multi mode, Delay between two sampling time, ADC clock, DMA mode
and DMA access mode for dual mode */
/* Set MULTI bits according to ADC_Mode value */
/* Set CKMODE bits according to ADC_Clock value */
/* Set MDMA bits according to ADC_DMAAccessMode value */
/* Set DMACFG bits according to ADC_DMAMode value */
/* Set DELAY bits according to ADC_TwoSamplingDelay value */
tmpreg1 |= (uint32_t)(ADC_CommonInitStruct->ADC_Mode |
ADC_CommonInitStruct->ADC_Clock |
ADC_CommonInitStruct->ADC_DMAAccessMode |
(uint32_t)(ADC_CommonInitStruct->ADC_DMAMode << 12) |
(uint32_t)((uint32_t)ADC_CommonInitStruct->ADC_TwoSamplingDelay << 8));
if((ADCx == ADC1) || (ADCx == ADC2))
{
/* Write to ADC CCR */
ADC1_2->CCR = tmpreg1;
}
else
{
/* Write to ADC CCR */
ADC3_4->CCR = tmpreg1;
}
}
/**
* @brief Fills each ADC_CommonInitStruct member with its default value.
* @param ADC_CommonInitStruct: pointer to an ADC_CommonInitTypeDef structure
* which will be initialized.
* @retval None
*/
void ADC_CommonStructInit(ADC_CommonInitTypeDef* ADC_CommonInitStruct)
{
/* Initialize the ADC_Mode member */
ADC_CommonInitStruct->ADC_Mode = ADC_Mode_Independent;
/* initialize the ADC_Clock member */
ADC_CommonInitStruct->ADC_Clock = ADC_Clock_AsynClkMode;
/* Initialize the ADC_DMAAccessMode member */
ADC_CommonInitStruct->ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
/* Initialize the ADC_DMAMode member */
ADC_CommonInitStruct->ADC_DMAMode = ADC_DMAMode_OneShot;
/* Initialize the ADC_TwoSamplingDelay member */
ADC_CommonInitStruct->ADC_TwoSamplingDelay = 0;
}
/**
* @brief Enables or disables the specified ADC peripheral.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param NewState: new state of the ADCx peripheral.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void ADC_Cmd(ADC_TypeDef* ADCx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Set the ADEN bit */
ADCx->CR |= ADC_CR_ADEN;
}
else
{
/* Disable the selected ADC peripheral: Set the ADDIS bit */
ADCx->CR |= ADC_CR_ADDIS;
}
}
/**
* @brief Starts the selected ADC calibration process.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @retval None
*/
void ADC_StartCalibration(ADC_TypeDef* ADCx)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
/* Set the ADCAL bit */
ADCx->CR |= ADC_CR_ADCAL;
}
/**
* @brief Returns the ADCx calibration value.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @retval None
*/
uint32_t ADC_GetCalibrationValue(ADC_TypeDef* ADCx)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
/* Return the selected ADC calibration value */
return (uint32_t)ADCx->CALFACT;
}
/**
* @brief Sets the ADCx calibration register.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @retval None
*/
void ADC_SetCalibrationValue(ADC_TypeDef* ADCx, uint32_t ADC_Calibration)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
/* Set the ADC calibration register value */
ADCx->CALFACT = ADC_Calibration;
}
/**
* @brief Select the ADC calibration mode.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param ADC_CalibrationMode: the ADC calibration mode.
* This parameter can be one of the following values:
* @arg ADC_CalibrationMode_Single: to select the calibration for single channel
* @arg ADC_CalibrationMode_Differential: to select the calibration for differential channel
* @retval None
*/
void ADC_SelectCalibrationMode(ADC_TypeDef* ADCx, uint32_t ADC_CalibrationMode)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_CALIBRATION_MODE(ADC_CalibrationMode));
/* Set or Reset the ADCALDIF bit */
ADCx->CR &= (~ADC_CR_ADCALDIF);
ADCx->CR |= ADC_CalibrationMode;
}
/**
* @brief Gets the selected ADC calibration status.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @retval The new state of ADC calibration (SET or RESET).
*/
FlagStatus ADC_GetCalibrationStatus(ADC_TypeDef* ADCx)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
/* Check the status of CAL bit */
if ((ADCx->CR & ADC_CR_ADCAL) != (uint32_t)RESET)
{
/* CAL bit is set: calibration on going */
bitstatus = SET;
}
else
{
/* CAL bit is reset: end of calibration */
bitstatus = RESET;
}
/* Return the CAL bit status */
return bitstatus;
}
/**
* @brief ADC Disable Command.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @retval None
*/
void ADC_DisableCmd(ADC_TypeDef* ADCx)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
/* Set the ADDIS bit */
ADCx->CR |= ADC_CR_ADDIS;
}
/**
* @brief Gets the selected ADC disable command Status.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @retval The new state of ADC ADC disable command (SET or RESET).
*/
FlagStatus ADC_GetDisableCmdStatus(ADC_TypeDef* ADCx)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
/* Check the status of ADDIS bit */
if ((ADCx->CR & ADC_CR_ADDIS) != (uint32_t)RESET)
{
/* ADDIS bit is set */
bitstatus = SET;
}
else
{
/* ADDIS bit is reset */
bitstatus = RESET;
}
/* Return the ADDIS bit status */
return bitstatus;
}
/**
* @brief Enables or disables the specified ADC Voltage Regulator.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param NewState: new state of the ADCx Voltage Regulator.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void ADC_VoltageRegulatorCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
/* set the intermediate state before moving the ADC voltage regulator
from enable state to disable state or from disable state to enable state */
ADCx->CR &= ~(ADC_CR_ADVREGEN);
if (NewState != DISABLE)
{
/* Set the ADVREGEN bit 0 */
ADCx->CR |= ADC_CR_ADVREGEN_0;
}
else
{
/* Set the ADVREGEN bit 1 */
ADCx->CR |=ADC_CR_ADVREGEN_1;
}
}
/**
* @brief Selectes the differential mode for a specific channel
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param ADC_Channel: the ADC channel to configure for the analog watchdog.
* This parameter can be one of the following values:
* @arg ADC_Channel_1: ADC Channel1 selected
* @arg ADC_Channel_2: ADC Channel2 selected
* @arg ADC_Channel_3: ADC Channel3 selected
* @arg ADC_Channel_4: ADC Channel4 selected
* @arg ADC_Channel_5: ADC Channel5 selected
* @arg ADC_Channel_6: ADC Channel6 selected
* @arg ADC_Channel_7: ADC Channel7 selected
* @arg ADC_Channel_8: ADC Channel8 selected
* @arg ADC_Channel_9: ADC Channel9 selected
* @arg ADC_Channel_10: ADC Channel10 selected
* @arg ADC_Channel_11: ADC Channel11 selected
* @arg ADC_Channel_12: ADC Channel12 selected
* @arg ADC_Channel_13: ADC Channel13 selected
* @arg ADC_Channel_14: ADC Channel14 selected
* @note : Channel 15, 16 and 17 are fixed to single-ended inputs mode.
* @retval None
*/
void ADC_SelectDifferentialMode(ADC_TypeDef* ADCx, uint8_t ADC_Channel, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_DIFFCHANNEL(ADC_Channel));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Set the DIFSEL bit */
ADCx->DIFSEL |= (uint32_t)(1 << ADC_Channel );
}
else
{
/* Reset the DIFSEL bit */
ADCx->DIFSEL &= ~(uint32_t)(1 << ADC_Channel);
}
}
/**
* @brief Selects the Queue Of Context Mode for injected channels.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param NewState: new state of the Queue Of Context Mode.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void ADC_SelectQueueOfContextMode(ADC_TypeDef* ADCx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Set the JQM bit */
ADCx->CFGR |= (uint32_t)(ADC_CFGR_JQM );
}
else
{
/* Reset the JQM bit */
ADCx->CFGR &= ~(uint32_t)(ADC_CFGR_JQM);
}
}
/**
* @brief Selects the ADC Delayed Conversion Mode.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param NewState: new state of the ADC Delayed Conversion Mode.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void ADC_AutoDelayCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Set the AUTDLY bit */
ADCx->CFGR |= (uint32_t)(ADC_CFGR_AUTDLY );
}
else
{
/* Reset the AUTDLY bit */
ADCx->CFGR &= ~(uint32_t)(ADC_CFGR_AUTDLY);
}
}
/**
* @}
*/
/** @defgroup ADC_Group2 Analog Watchdog configuration functions
* @brief Analog Watchdog configuration functions
*
@verbatim
===============================================================================
##### Analog Watchdog configuration functions #####
===============================================================================
[..] This section provides functions allowing to configure the 3 Analog Watchdogs
(AWDG1, AWDG2 and AWDG3) in the ADC.
[..] A typical configuration Analog Watchdog is done following these steps :
(#) The ADC guarded channel(s) is (are) selected using the functions:
(++) ADC_AnalogWatchdog1SingleChannelConfig().
(++) ADC_AnalogWatchdog2SingleChannelConfig().
(++) ADC_AnalogWatchdog3SingleChannelConfig().
(#) The Analog watchdog lower and higher threshold are configured using the functions:
(++) ADC_AnalogWatchdog1ThresholdsConfig().
(++) ADC_AnalogWatchdog2ThresholdsConfig().
(++) ADC_AnalogWatchdog3ThresholdsConfig().
(#) The Analog watchdog is enabled and configured to enable the check, on one
or more channels, using the function:
(++) ADC_AnalogWatchdogCmd().
@endverbatim
* @{
*/
/**
* @brief Enables or disables the analog watchdog on single/all regular
* or injected channels
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param ADC_AnalogWatchdog: the ADC analog watchdog configuration.
* This parameter can be one of the following values:
* @arg ADC_AnalogWatchdog_SingleRegEnable: Analog watchdog on a single regular channel
* @arg ADC_AnalogWatchdog_SingleInjecEnable: Analog watchdog on a single injected channel
* @arg ADC_AnalogWatchdog_SingleRegOrInjecEnable: Analog watchdog on a single regular or injected channel
* @arg ADC_AnalogWatchdog_AllRegEnable: Analog watchdog on all regular channel
* @arg ADC_AnalogWatchdog_AllInjecEnable: Analog watchdog on all injected channel
* @arg ADC_AnalogWatchdog_AllRegAllInjecEnable: Analog watchdog on all regular and injected channels
* @arg ADC_AnalogWatchdog_None: No channel guarded by the analog watchdog
* @retval None
*/
void ADC_AnalogWatchdogCmd(ADC_TypeDef* ADCx, uint32_t ADC_AnalogWatchdog)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_ANALOG_WATCHDOG(ADC_AnalogWatchdog));
/* Get the old register value */
tmpreg = ADCx->CFGR;
/* Clear AWDEN, AWDENJ and AWDSGL bits */
tmpreg &= ~(uint32_t)(ADC_CFGR_AWD1SGL|ADC_CFGR_AWD1EN|ADC_CFGR_JAWD1EN);
/* Set the analog watchdog enable mode */
tmpreg |= ADC_AnalogWatchdog;
/* Store the new register value */
ADCx->CFGR = tmpreg;
}
/**
* @brief Configures the high and low thresholds of the analog watchdog1.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param HighThreshold: the ADC analog watchdog High threshold value.
* This parameter must be a 12bit value.
* @param LowThreshold: the ADC analog watchdog Low threshold value.
* This parameter must be a 12bit value.
* @retval None
*/
void ADC_AnalogWatchdog1ThresholdsConfig(ADC_TypeDef* ADCx, uint16_t HighThreshold,
uint16_t LowThreshold)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_THRESHOLD(HighThreshold));
assert_param(IS_ADC_THRESHOLD(LowThreshold));
/* Set the ADCx high threshold */
ADCx->TR1 &= ~(uint32_t)ADC_TR1_HT1;
ADCx->TR1 |= (uint32_t)((uint32_t)HighThreshold << 16);
/* Set the ADCx low threshold */
ADCx->TR1 &= ~(uint32_t)ADC_TR1_LT1;
ADCx->TR1 |= LowThreshold;
}
/**
* @brief Configures the high and low thresholds of the analog watchdog2.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param HighThreshold: the ADC analog watchdog High threshold value.
* This parameter must be a 8bit value.
* @param LowThreshold: the ADC analog watchdog Low threshold value.
* This parameter must be a 8bit value.
* @retval None
*/
void ADC_AnalogWatchdog2ThresholdsConfig(ADC_TypeDef* ADCx, uint8_t HighThreshold,
uint8_t LowThreshold)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
/* Set the ADCx high threshold */
ADCx->TR2 &= ~(uint32_t)ADC_TR2_HT2;
ADCx->TR2 |= (uint32_t)((uint32_t)HighThreshold << 16);
/* Set the ADCx low threshold */
ADCx->TR2 &= ~(uint32_t)ADC_TR2_LT2;
ADCx->TR2 |= LowThreshold;
}
/**
* @brief Configures the high and low thresholds of the analog watchdog3.
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param HighThreshold: the ADC analog watchdog High threshold value.
* This parameter must be a 8bit value.
* @param LowThreshold: the ADC analog watchdog Low threshold value.
* This parameter must be a 8bit value.
* @retval None
*/
void ADC_AnalogWatchdog3ThresholdsConfig(ADC_TypeDef* ADCx, uint8_t HighThreshold,
uint8_t LowThreshold)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
/* Set the ADCx high threshold */
ADCx->TR3 &= ~(uint32_t)ADC_TR3_HT3;
ADCx->TR3 |= (uint32_t)((uint32_t)HighThreshold << 16);
/* Set the ADCx low threshold */
ADCx->TR3 &= ~(uint32_t)ADC_TR3_LT3;
ADCx->TR3 |= LowThreshold;
}
/**
* @brief Configures the analog watchdog 2 guarded single channel
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param ADC_Channel: the ADC channel to configure for the analog watchdog.
* This parameter can be one of the following values:
* @arg ADC_Channel_1: ADC Channel1 selected
* @arg ADC_Channel_2: ADC Channel2 selected
* @arg ADC_Channel_3: ADC Channel3 selected
* @arg ADC_Channel_4: ADC Channel4 selected
* @arg ADC_Channel_5: ADC Channel5 selected
* @arg ADC_Channel_6: ADC Channel6 selected
* @arg ADC_Channel_7: ADC Channel7 selected
* @arg ADC_Channel_8: ADC Channel8 selected
* @arg ADC_Channel_9: ADC Channel9 selected
* @arg ADC_Channel_10: ADC Channel10 selected
* @arg ADC_Channel_11: ADC Channel11 selected
* @arg ADC_Channel_12: ADC Channel12 selected
* @arg ADC_Channel_13: ADC Channel13 selected
* @arg ADC_Channel_14: ADC Channel14 selected
* @arg ADC_Channel_15: ADC Channel15 selected
* @arg ADC_Channel_16: ADC Channel16 selected
* @arg ADC_Channel_17: ADC Channel17 selected
* @arg ADC_Channel_18: ADC Channel18 selected
* @retval None
*/
void ADC_AnalogWatchdog1SingleChannelConfig(ADC_TypeDef* ADCx, uint8_t ADC_Channel)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_CHANNEL(ADC_Channel));
/* Get the old register value */
tmpreg = ADCx->CFGR;
/* Clear the Analog watchdog channel select bits */
tmpreg &= ~(uint32_t)ADC_CFGR_AWD1CH;
/* Set the Analog watchdog channel */
tmpreg |= (uint32_t)((uint32_t)ADC_Channel << 26);
/* Store the new register value */
ADCx->CFGR = tmpreg;
}
/**
* @brief Configures the analog watchdog 2 guarded single channel
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param ADC_Channel: the ADC channel to configure for the analog watchdog.
* This parameter can be one of the following values:
* @arg ADC_Channel_1: ADC Channel1 selected
* @arg ADC_Channel_2: ADC Channel2 selected
* @arg ADC_Channel_3: ADC Channel3 selected
* @arg ADC_Channel_4: ADC Channel4 selected
* @arg ADC_Channel_5: ADC Channel5 selected
* @arg ADC_Channel_6: ADC Channel6 selected
* @arg ADC_Channel_7: ADC Channel7 selected
* @arg ADC_Channel_8: ADC Channel8 selected
* @arg ADC_Channel_9: ADC Channel9 selected
* @arg ADC_Channel_10: ADC Channel10 selected
* @arg ADC_Channel_11: ADC Channel11 selected
* @arg ADC_Channel_12: ADC Channel12 selected
* @arg ADC_Channel_13: ADC Channel13 selected
* @arg ADC_Channel_14: ADC Channel14 selected
* @arg ADC_Channel_15: ADC Channel15 selected
* @arg ADC_Channel_16: ADC Channel16 selected
* @arg ADC_Channel_17: ADC Channel17 selected
* @arg ADC_Channel_18: ADC Channel18 selected
* @retval None
*/
void ADC_AnalogWatchdog2SingleChannelConfig(ADC_TypeDef* ADCx, uint8_t ADC_Channel)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_CHANNEL(ADC_Channel));
/* Get the old register value */
tmpreg = ADCx->AWD2CR;
/* Clear the Analog watchdog channel select bits */
tmpreg &= ~(uint32_t)ADC_AWD2CR_AWD2CH;
/* Set the Analog watchdog channel */
tmpreg |= (uint32_t)1 << (ADC_Channel);
/* Store the new register value */
ADCx->AWD2CR |= tmpreg;
}
/**
* @brief Configures the analog watchdog 3 guarded single channel
* @param ADCx: where x can be 1, 2, 3 or 4 to select the ADC peripheral.
* @param ADC_Channel: the ADC channel to configure for the analog watchdog.
* This parameter can be one of the following values:
* @arg ADC_Channel_1: ADC Channel1 selected
* @arg ADC_Channel_2: ADC Channel2 selected
* @arg ADC_Channel_3: ADC Channel3 selected
* @arg ADC_Channel_4: ADC Channel4 selected
* @arg ADC_Channel_5: ADC Channel5 selected
* @arg ADC_Channel_6: ADC Channel6 selected
* @arg ADC_Channel_7: ADC Channel7 selected
* @arg ADC_Channel_8: ADC Channel8 selected
* @arg ADC_Channel_9: ADC Channel9 selected
* @arg ADC_Channel_10: ADC Channel10 selected
* @arg ADC_Channel_11: ADC Channel11 selected
* @arg ADC_Channel_12: ADC Channel12 selected
* @arg ADC_Channel_13: ADC Channel13 selected
* @arg ADC_Channel_14: ADC Channel14 selected
* @arg ADC_Channel_15: ADC Channel15 selected
* @arg ADC_Channel_16: ADC Channel16 selected
* @arg ADC_Channel_17: ADC Channel17 selected
* @arg ADC_Channel_18: ADC Channel18 selected
* @retval None
*/
void ADC_AnalogWatchdog3SingleChannelConfig(ADC_TypeDef* ADCx, uint8_t ADC_Channel)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_CHANNEL(ADC_Channel));
/* Get the old register value */
tmpreg = ADCx->AWD3CR;
/* Clear the Analog watchdog channel select bits */
tmpreg &= ~(uint32_t)ADC_AWD3CR_AWD3CH;
/* Set the Analog watchdog channel */
tmpreg |= (uint32_t)1 << (ADC_Channel);
/* Store the new register value */
ADCx->AWD3CR |= tmpreg;
}
/**
* @}
*/
/** @defgroup ADC_Group3 Temperature Sensor - Vrefint (Internal Reference Voltage) and VBAT management functions
* @brief Vbat, Temperature Sensor & Vrefint (Internal Reference Voltage) management function
*
@verbatim
====================================================================================================
##### Temperature Sensor - Vrefint (Internal Reference Voltage) and VBAT management functions #####
====================================================================================================
[..] This section provides a function allowing to enable/ disable the internal
connections between the ADC and the Vbat/2, Temperature Sensor and the Vrefint source.
[..] A typical configuration to get the Temperature sensor and Vrefint channels
voltages is done following these steps :
(#) Enable the internal connection of Vbat/2, Temperature sensor and Vrefint sources
with the ADC channels using:
(++) ADC_TempSensorCmd()
(++) ADC_VrefintCmd()
(++) ADC_VbatCmd()
(#) select the ADC_Channel_TempSensor and/or ADC_Channel_Vrefint and/or ADC_Channel_Vbat using
(++) ADC_RegularChannelConfig() or
(++) ADC_InjectedInit() functions
(#) Get the voltage values, using:
(++) ADC_GetConversionValue() or
(++) ADC_GetInjectedConversionValue().
@endverbatim
* @{
*/
/**
* @brief Enables or disables the temperature sensor channel.
* @param ADCx: where x can be 1 to select the ADC peripheral.
* @param NewState: new state of the temperature sensor.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void ADC_TempSensorCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the temperature sensor channel*/
ADC1_2->CCR |= ADC12_CCR_TSEN;
}
else
{
/* Disable the temperature sensor channel*/
ADC1_2->CCR &= ~(uint32_t)ADC12_CCR_TSEN;
}
}
/**
* @brief Enables or disables the Vrefint channel.
* @param ADCx: where x can be 1 or 4 to select the ADC peripheral.
* @param NewState: new state of the Vrefint.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void ADC_VrefintCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if((ADCx == ADC1) || (ADCx == ADC2))
{
if (NewState != DISABLE)
{
/* Enable the Vrefint channel*/
ADC1_2->CCR |= ADC12_CCR_VREFEN;
}
else
{
/* Disable the Vrefint channel*/
ADC1_2->CCR &= ~(uint32_t)ADC12_CCR_VREFEN;
}
}
else
{
if (NewState != DISABLE)
{
/* Enable the Vrefint channel*/
ADC3_4->CCR |= ADC34_CCR_VREFEN;
}
else
{
/* Disable the Vrefint channel*/