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Diff: targets/cmsis/TARGET_STM/TARGET_DISCO_F051R8/stm32f0xx_adc.c
- Revision:
- 130:1dec54e4aec3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_DISCO_F051R8/stm32f0xx_adc.c Fri Mar 21 11:45:09 2014 +0000
@@ -0,0 +1,1250 @@
+/**
+ ******************************************************************************
+ * @file stm32f0xx_adc.c
+ * @author MCD Application Team
+ * @version V1.3.0
+ * @date 16-January-2014
+ * @brief This file provides firmware functions to manage the following
+ * functionalities of the Analog to Digital Convertor (ADC) peripheral:
+ * + Initialization and Configuration
+ * + Power saving
+ * + Analog Watchdog configuration
+ * + Temperature Sensor, Vrefint (Internal Reference Voltage) and
+ * Vbat (Voltage battery) management
+ * + ADC Channels Configuration
+ * + ADC Channels DMA Configuration
+ * + Interrupts and flags management
+ *
+ * @verbatim
+================================================================================
+ ##### How to use this driver #####
+================================================================================
+ [..]
+ (#) Enable the ADC interface clock using
+ RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
+ (#) 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, scan direction 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() and
+ ADC_ChannelConfig() 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_GetCalibrationFactor() 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_DMARequestModeConfig() function.
+
+ * @endverbatim
+ *
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx_adc.h"
+#include "stm32f0xx_rcc.h"
+
+/** @addtogroup STM32F0xx_StdPeriph_Driver
+ * @{
+ */
+
+/** @defgroup ADC
+ * @brief ADC driver modules
+ * @{
+ */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* ADC CFGR mask */
+#define CFGR1_CLEAR_MASK ((uint32_t)0xFFFFD203)
+
+/* Calibration time out */
+#define CALIBRATION_TIMEOUT ((uint32_t)0x0000F000)
+
+/* 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 Prescaler
+ (+) ADC Conversion Resolution (12bit..6bit)
+ (+) ADC Continuous Conversion Mode (Continuous or Single conversion)
+ (+) External trigger Edge and source
+ (+) Converted data alignment (left or right)
+ (+) The direction in which the channels will be scanned in the sequence
+ (+) Enable or disable the ADC peripheral
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Deinitializes ADC1 peripheral registers to their default reset values.
+ * @param ADCx: where x can be 1 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)
+ {
+ /* Enable ADC1 reset state */
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_ADC1, ENABLE);
+
+ /* Release ADC1 from reset state */
+ RCC_APB2PeriphResetCmd(RCC_APB2Periph_ADC1, DISABLE);
+ }
+}
+
+/**
+ * @brief Initializes the ADCx peripheral according to the specified parameters
+ * in the ADC_InitStruct.
+ * @note This function is used to configure the global features of the ADC (
+ * Resolution, Data Alignment, continuous mode activation, External
+ * trigger source and edge, Sequence Scan Direction).
+ * @param ADCx: where x can be 1 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 tmpreg = 0;
+
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_ADC_RESOLUTION(ADC_InitStruct->ADC_Resolution));
+ assert_param(IS_FUNCTIONAL_STATE(ADC_InitStruct->ADC_ContinuousConvMode));
+ assert_param(IS_ADC_EXT_TRIG_EDGE(ADC_InitStruct->ADC_ExternalTrigConvEdge));
+ assert_param(IS_ADC_EXTERNAL_TRIG_CONV(ADC_InitStruct->ADC_ExternalTrigConv));
+ assert_param(IS_ADC_DATA_ALIGN(ADC_InitStruct->ADC_DataAlign));
+ assert_param(IS_ADC_SCAN_DIRECTION(ADC_InitStruct->ADC_ScanDirection));
+
+ /* Get the ADCx CFGR value */
+ tmpreg = ADCx->CFGR1;
+
+ /* Clear SCANDIR, RES[1:0], ALIGN, EXTSEL[2:0], EXTEN[1:0] and CONT bits */
+ tmpreg &= CFGR1_CLEAR_MASK;
+
+ /*---------------------------- ADCx CFGR Configuration ---------------------*/
+
+ /* Set RES[1:0] bits according to ADC_Resolution value */
+ /* Set CONT bit according to ADC_ContinuousConvMode value */
+ /* Set EXTEN[1:0] bits according to ADC_ExternalTrigConvEdge value */
+ /* Set EXTSEL[2:0] bits according to ADC_ExternalTrigConv value */
+ /* Set ALIGN bit according to ADC_DataAlign value */
+ /* Set SCANDIR bit according to ADC_ScanDirection value */
+
+ tmpreg |= (uint32_t)(ADC_InitStruct->ADC_Resolution | ((uint32_t)(ADC_InitStruct->ADC_ContinuousConvMode) << 13) |
+ ADC_InitStruct->ADC_ExternalTrigConvEdge | ADC_InitStruct->ADC_ExternalTrigConv |
+ ADC_InitStruct->ADC_DataAlign | ADC_InitStruct->ADC_ScanDirection);
+
+ /* Write to ADCx CFGR */
+ ADCx->CFGR1 = tmpreg;
+}
+
+/**
+ * @brief Fills each ADC_InitStruct member with its default value.
+ * @note This function is used to initialize the global features of the ADC (
+ * Resolution, Data Alignment, continuous mode activation, External
+ * trigger source and edge, Sequence Scan Direction).
+ * @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 */
+ /* Initialize the ADC_Resolution member */
+ ADC_InitStruct->ADC_Resolution = ADC_Resolution_12b;
+
+ /* Initialize the ADC_ContinuousConvMode member */
+ ADC_InitStruct->ADC_ContinuousConvMode = DISABLE;
+
+ /* Initialize the ADC_ExternalTrigConvEdge member */
+ ADC_InitStruct->ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
+
+ /* Initialize the ADC_ExternalTrigConv member */
+ ADC_InitStruct->ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_TRGO;
+
+ /* Initialize the ADC_DataAlign member */
+ ADC_InitStruct->ADC_DataAlign = ADC_DataAlign_Right;
+
+ /* Initialize the ADC_ScanDirection member */
+ ADC_InitStruct->ADC_ScanDirection = ADC_ScanDirection_Upward;
+}
+
+/**
+ * @brief Enables or disables the specified ADC peripheral.
+ * @param ADCx: where x can be 1 to select the ADC1 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 to Enable the ADC peripheral */
+ ADCx->CR |= (uint32_t)ADC_CR_ADEN;
+ }
+ else
+ {
+ /* Set the ADDIS to Disable the ADC peripheral */
+ ADCx->CR |= (uint32_t)ADC_CR_ADDIS;
+ }
+}
+
+/**
+ * @brief Configure the ADC to either be clocked by the asynchronous clock(which is
+ * independent, the dedicated 14MHz clock) or the synchronous clock derived from
+ * the APB clock of the ADC bus interface divided by 2 or 4
+ * @note This function can be called only when ADC is disabled.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param ADC_ClockMode: This parameter can be :
+ * @arg ADC_ClockMode_AsynClk: ADC clocked by the dedicated 14MHz clock
+ * @arg ADC_ClockMode_SynClkDiv2: ADC clocked by PCLK/2
+ * @arg ADC_ClockMode_SynClkDiv4: ADC clocked by PCLK/4
+ * @retval None
+ */
+void ADC_ClockModeConfig(ADC_TypeDef* ADCx, uint32_t ADC_ClockMode)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_ADC_CLOCKMODE(ADC_ClockMode));
+
+ /* Configure the ADC Clock mode according to ADC_ClockMode */
+ ADCx->CFGR2 = (uint32_t)ADC_ClockMode;
+
+}
+
+/**
+ * @brief Enables or disables the jitter when the ADC is clocked by PCLK div2
+ * or div4
+ * @note This function is obsolete and maintained for legacy purpose only. ADC_ClockModeConfig()
+ * function should be used instead.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param ADC_JitterOff: This parameter can be :
+ * @arg ADC_JitterOff_PCLKDiv2: Remove jitter when ADC is clocked by PLCK divided by 2
+ * @arg ADC_JitterOff_PCLKDiv4: Remove jitter when ADC is clocked by PLCK divided by 4
+ * @param NewState: new state of the ADCx jitter.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_JitterCmd(ADC_TypeDef* ADCx, uint32_t ADC_JitterOff, FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_ADC_JITTEROFF(ADC_JitterOff));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Disable Jitter */
+ ADCx->CFGR2 |= (uint32_t)ADC_JitterOff;
+ }
+ else
+ {
+ /* Enable Jitter */
+ ADCx->CFGR2 &= (uint32_t)(~ADC_JitterOff);
+ }
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup ADC_Group2 Power saving functions
+ * @brief Power saving functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Power saving functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to reduce power consumption.
+ [..] The two function must be combined to get the maximal benefits:
+ When the ADC frequency is higher than the CPU one, it is recommended to
+ (#) Enable the Auto Delayed Conversion mode :
+ ==> using ADC_WaitModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState);
+ (#) Enable the power off in Delay phases :
+ ==> using ADC_AutoPowerOffCmd(ADC_TypeDef* ADCx, FunctionalState NewState);
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enables or disables the ADC Power Off.
+ * @note ADC power-on and power-off can be managed by hardware to cut the
+ * consumption when the ADC is not converting.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @note The ADC can be powered down:
+ * - During the Auto delay phase: The ADC is powered on again at the end
+ * of the delay (until the previous data is read from the ADC data register).
+ * - During the ADC is waiting for a trigger event: The ADC is powered up
+ * at the next trigger event (when the conversion is started).
+ * @param NewState: new state of the ADCx power Off.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_AutoPowerOffCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the ADC Automatic Power-Off */
+ ADCx->CFGR1 |= ADC_CFGR1_AUTOFF;
+ }
+ else
+ {
+ /* Disable the ADC Automatic Power-Off */
+ ADCx->CFGR1 &= (uint32_t)~ADC_CFGR1_AUTOFF;
+ }
+}
+
+/**
+ * @brief Enables or disables the Wait conversion mode.
+ * @note When the CPU clock is not fast enough to manage the data rate, a
+ * Hardware delay can be introduced between ADC conversions to reduce
+ * this data rate.
+ * @note The Hardware delay is inserted after each conversions and until the
+ * previous data is read from the ADC data register
+ * @note This is a way to automatically adapt the speed of the ADC to the speed
+ * of the system which will read the data.
+ * @note Any hardware triggers wich occur while a conversion is on going or
+ * while the automatic Delay is applied are ignored
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param NewState: new state of the ADCx Auto-Delay.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_WaitModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the ADC Automatic Delayed conversion */
+ ADCx->CFGR1 |= ADC_CFGR1_WAIT;
+ }
+ else
+ {
+ /* Disable the ADC Automatic Delayed conversion */
+ ADCx->CFGR1 &= (uint32_t)~ADC_CFGR1_WAIT;
+ }
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup ADC_Group3 Analog Watchdog configuration functions
+ * @brief Analog Watchdog configuration functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Analog Watchdog configuration functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to configure the Analog Watchdog
+ (AWD) feature in the ADC.
+ [..] A typical configuration Analog Watchdog is done following these steps :
+ (#) the ADC guarded channel(s) is (are) selected using the
+ ADC_AnalogWatchdogSingleChannelConfig() function.
+ (#) The Analog watchdog lower and higher threshold are configured using the
+ ADC_AnalogWatchdogThresholdsConfig() function.
+ (#) The Analog watchdog is enabled and configured to enable the check, on one
+ or more channels, using the ADC_AnalogWatchdogCmd() function.
+ (#) Enable the analog watchdog on the selected channel using
+ ADC_AnalogWatchdogSingleChannelCmd() function
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enables or disables the analog watchdog
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param NewState: new state of the ADCx Analog Watchdog.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_AnalogWatchdogCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the ADC Analog Watchdog */
+ ADCx->CFGR1 |= ADC_CFGR1_AWDEN;
+ }
+ else
+ {
+ /* Disable the ADC Analog Watchdog */
+ ADCx->CFGR1 &= (uint32_t)~ADC_CFGR1_AWDEN;
+ }
+}
+
+/**
+ * @brief Configures the high and low thresholds of the analog watchdog.
+ * @param ADCx: where x can be 1 to select the ADC1 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_AnalogWatchdogThresholdsConfig(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 and low threshold */
+ ADCx->TR = LowThreshold | ((uint32_t)HighThreshold << 16);
+
+}
+
+/**
+ * @brief Configures the analog watchdog guarded single channel
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param ADC_AnalogWatchdog_Channel: the ADC channel to configure for the analog watchdog.
+ * This parameter can be one of the following values:
+ * @arg ADC_AnalogWatchdog_Channel_0: ADC Channel0 selected
+ * @arg ADC_AnalogWatchdog_Channel_1: ADC Channel1 selected
+ * @arg ADC_AnalogWatchdog_Channel_2: ADC Channel2 selected
+ * @arg ADC_AnalogWatchdog_Channel_3: ADC Channel3 selected
+ * @arg ADC_AnalogWatchdog_Channel_4: ADC Channel4 selected
+ * @arg ADC_AnalogWatchdog_Channel_5: ADC Channel5 selected
+ * @arg ADC_AnalogWatchdog_Channel_6: ADC Channel6 selected
+ * @arg ADC_AnalogWatchdog_Channel_7: ADC Channel7 selected
+ * @arg ADC_AnalogWatchdog_Channel_8: ADC Channel8 selected
+ * @arg ADC_AnalogWatchdog_Channel_9: ADC Channel9 selected
+ * @arg ADC_AnalogWatchdog_Channel_10: ADC Channel10 selected, not available for STM32F031 devices
+ * @arg ADC_AnalogWatchdog_Channel_11: ADC Channel11 selected, not available for STM32F031 devices
+ * @arg ADC_AnalogWatchdog_Channel_12: ADC Channel12 selected, not available for STM32F031 devices
+ * @arg ADC_AnalogWatchdog_Channel_13: ADC Channel13 selected, not available for STM32F031 devices
+ * @arg ADC_AnalogWatchdog_Channel_14: ADC Channel14 selected, not available for STM32F031 devices
+ * @arg ADC_AnalogWatchdog_Channel_15: ADC Channel15 selected, not available for STM32F031 devices
+ * @arg ADC_AnalogWatchdog_Channel_16: ADC Channel16 selected
+ * @arg ADC_AnalogWatchdog_Channel_17: ADC Channel17 selected
+ * @arg ADC_AnalogWatchdog_Channel_18: ADC Channel18 selected, not available for STM32F030 devices
+ * @note The channel selected on the AWDCH must be also set into the CHSELR
+ * register
+ * @retval None
+ */
+void ADC_AnalogWatchdogSingleChannelConfig(ADC_TypeDef* ADCx, uint32_t ADC_AnalogWatchdog_Channel)
+{
+ uint32_t tmpreg = 0;
+
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_ADC_ANALOG_WATCHDOG_CHANNEL(ADC_AnalogWatchdog_Channel));
+
+ /* Get the old register value */
+ tmpreg = ADCx->CFGR1;
+
+ /* Clear the Analog watchdog channel select bits */
+ tmpreg &= ~ADC_CFGR1_AWDCH;
+
+ /* Set the Analog watchdog channel */
+ tmpreg |= ADC_AnalogWatchdog_Channel;
+
+ /* Store the new register value */
+ ADCx->CFGR1 = tmpreg;
+}
+
+/**
+ * @brief Enables or disables the ADC Analog Watchdog Single Channel.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param NewState: new state of the ADCx ADC Analog Watchdog Single Channel.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_AnalogWatchdogSingleChannelCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the ADC Analog Watchdog Single Channel */
+ ADCx->CFGR1 |= ADC_CFGR1_AWDSGL;
+ }
+ else
+ {
+ /* Disable the ADC Analog Watchdog Single Channel */
+ ADCx->CFGR1 &= (uint32_t)~ADC_CFGR1_AWDSGL;
+ }
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup ADC_Group4 Temperature Sensor, Vrefint and Vbat management functions
+ * @brief Temperature Sensor, Vrefint and Vbat management functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Temperature Sensor, Vrefint and Vbat management function #####
+ ===============================================================================
+ [..] This section provides a function allowing to enable/disable the internal
+ connections between the ADC and the Temperature Sensor, the Vrefint and
+ Vbat source.
+
+ [..] A typical configuration to get the Temperature sensor, Vrefint and Vbat channels
+ voltages is done following these steps :
+ (#) Enable the internal connection of Temperature sensor, Vrefint or Vbat sources
+ with the ADC channels using ADC_TempSensorCmd(), ADC_VrefintCmd() or ADC_VbatCmd()
+ functions.
+ (#) select the ADC_Channel_16(Temperature sensor), ADC_Channel_17(Vrefint)
+ or ADC_Channel_18(Voltage battery) using ADC_ChannelConfig() function
+ (#) Get the voltage values, using ADC_GetConversionValue() function
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enables or disables the temperature sensor channel.
+ * @param NewState: new state of the temperature sensor input channel.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_TempSensorCmd(FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the temperature sensor channel*/
+ ADC->CCR |= (uint32_t)ADC_CCR_TSEN;
+ }
+ else
+ {
+ /* Disable the temperature sensor channel*/
+ ADC->CCR &= (uint32_t)(~ADC_CCR_TSEN);
+ }
+}
+
+/**
+ * @brief Enables or disables the Vrefint channel.
+ * @param NewState: new state of the Vref input channel.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_VrefintCmd(FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the Vrefint channel*/
+ ADC->CCR |= (uint32_t)ADC_CCR_VREFEN;
+ }
+ else
+ {
+ /* Disable the Vrefint channel*/
+ ADC->CCR &= (uint32_t)(~ADC_CCR_VREFEN);
+ }
+}
+
+/**
+ * @brief Enables or disables the Vbat channel.
+ * @note This feature is not applicable for STM32F030 devices.
+ * @param NewState: new state of the Vbat input channel.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_VbatCmd(FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the Vbat channel*/
+ ADC->CCR |= (uint32_t)ADC_CCR_VBATEN;
+ }
+ else
+ {
+ /* Disable the Vbat channel*/
+ ADC->CCR &= (uint32_t)(~ADC_CCR_VBATEN);
+ }
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup ADC_Group5 Channels Configuration functions
+ * @brief Channels Configuration functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Channels Configuration functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to manage the ADC channels,
+ it is composed of 3 sub sections :
+ (#) Configuration and management functions for ADC channels: This subsection
+ provides functions allowing to configure the ADC channels :
+ (++) Select the ADC channels
+ (++) Activate ADC Calibration
+ (++) Activate the Overrun Mode.
+ (++) Activate the Discontinuous Mode
+ (++) Activate the Continuous Mode.
+ (++) Configure the sampling time for each channel
+ (++) Select the conversion Trigger and Edge for ADC channels
+ (++) Select the scan direction.
+ -@@- Please Note that the following features for ADC channels are configurated
+ using the ADC_Init() function :
+ (+@@) Activate the Continuous Mode (can be also activated by ADC_OverrunModeCmd().
+ (+@@) Select the conversion Trigger and Edge for ADC channels
+ (+@@) Select the scan direction.
+ (#) Control the ADC peripheral : This subsection permits to command the ADC:
+ (++) Stop or discard an on-going conversion (ADSTP command)
+ (++) Start the ADC conversion .
+ (#) Get the conversion data: This subsection provides an important function in
+ the ADC peripheral since it returns the converted data of the current
+ ADC channel. When the Conversion value is read, the EOC Flag is
+ automatically cleared.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Configures for the selected ADC and its sampling time.
+ * @param ADCx: where x can be 1 to select the ADC peripheral.
+ * @param ADC_Channel: the ADC channel to configure.
+ * This parameter can be any combination of the following values:
+ * @arg ADC_Channel_0: ADC Channel0 selected
+ * @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, not available for STM32F031 devices
+ * @arg ADC_Channel_11: ADC Channel11 selected, not available for STM32F031 devices
+ * @arg ADC_Channel_12: ADC Channel12 selected, not available for STM32F031 devices
+ * @arg ADC_Channel_13: ADC Channel13 selected, not available for STM32F031 devices
+ * @arg ADC_Channel_14: ADC Channel14 selected, not available for STM32F031 devices
+ * @arg ADC_Channel_15: ADC Channel15 selected, not available for STM32F031 devices
+ * @arg ADC_Channel_16: ADC Channel16 selected
+ * @arg ADC_Channel_17: ADC Channel17 selected
+ * @arg ADC_Channel_18: ADC Channel18 selected, not available for STM32F030 devices
+ * @param ADC_SampleTime: The sample time value to be set for the selected channel.
+ * This parameter can be one of the following values:
+ * @arg ADC_SampleTime_1_5Cycles: Sample time equal to 1.5 cycles
+ * @arg ADC_SampleTime_7_5Cycles: Sample time equal to 7.5 cycles
+ * @arg ADC_SampleTime_13_5Cycles: Sample time equal to 13.5 cycles
+ * @arg ADC_SampleTime_28_5Cycles: Sample time equal to 28.5 cycles
+ * @arg ADC_SampleTime_41_5Cycles: Sample time equal to 41.5 cycles
+ * @arg ADC_SampleTime_55_5Cycles: Sample time equal to 55.5 cycles
+ * @arg ADC_SampleTime_71_5Cycles: Sample time equal to 71.5 cycles
+ * @arg ADC_SampleTime_239_5Cycles: Sample time equal to 239.5 cycles
+ * @retval None
+ */
+void ADC_ChannelConfig(ADC_TypeDef* ADCx, uint32_t ADC_Channel, uint32_t ADC_SampleTime)
+{
+ uint32_t tmpreg = 0;
+
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_ADC_CHANNEL(ADC_Channel));
+ assert_param(IS_ADC_SAMPLE_TIME(ADC_SampleTime));
+
+ /* Configure the ADC Channel */
+ ADCx->CHSELR |= (uint32_t)ADC_Channel;
+
+ /* Clear the Sampling time Selection bits */
+ tmpreg &= ~ADC_SMPR1_SMPR;
+
+ /* Set the ADC Sampling Time register */
+ tmpreg |= (uint32_t)ADC_SampleTime;
+
+ /* Configure the ADC Sample time register */
+ ADCx->SMPR = tmpreg ;
+}
+
+/**
+ * @brief Enable the Continuous mode for the selected ADCx channels.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param NewState: new state of the Continuous mode.
+ * This parameter can be: ENABLE or DISABLE.
+ * @note It is not possible to have both discontinuous mode and continuous mode
+ * enabled. In this case (If DISCEN and CONT are Set), the ADC behaves
+ * as if continuous mode was disabled
+ * @retval None
+ */
+void ADC_ContinuousModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the Continuous mode*/
+ ADCx->CFGR1 |= (uint32_t)ADC_CFGR1_CONT;
+ }
+ else
+ {
+ /* Disable the Continuous mode */
+ ADCx->CFGR1 &= (uint32_t)(~ADC_CFGR1_CONT);
+ }
+}
+
+/**
+ * @brief Enable the discontinuous mode for the selected ADC channels.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param NewState: new state of the discontinuous mode.
+ * This parameter can be: ENABLE or DISABLE.
+ * @note It is not possible to have both discontinuous mode and continuous mode
+ * enabled. In this case (If DISCEN and CONT are Set), the ADC behaves
+ * as if continuous mode was disabled
+ * @retval None
+ */
+void ADC_DiscModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the Discontinuous mode */
+ ADCx->CFGR1 |= (uint32_t)ADC_CFGR1_DISCEN;
+ }
+ else
+ {
+ /* Disable the Discontinuous mode */
+ ADCx->CFGR1 &= (uint32_t)(~ADC_CFGR1_DISCEN);
+ }
+}
+
+/**
+ * @brief Enable the Overrun mode for the selected ADC channels.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param NewState: new state of the Overrun mode.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_OverrunModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the Overrun mode */
+ ADCx->CFGR1 |= (uint32_t)ADC_CFGR1_OVRMOD;
+ }
+ else
+ {
+ /* Disable the Overrun mode */
+ ADCx->CFGR1 &= (uint32_t)(~ADC_CFGR1_OVRMOD);
+ }
+}
+
+/**
+ * @brief Active the Calibration operation for the selected ADC.
+ * @note The Calibration can be initiated only when ADC is still in the
+ * reset configuration (ADEN must be equal to 0).
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @retval ADC Calibration factor
+ */
+uint32_t ADC_GetCalibrationFactor(ADC_TypeDef* ADCx)
+{
+ uint32_t tmpreg = 0, calibrationcounter = 0, calibrationstatus = 0;
+
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+
+ /* Set the ADC calibartion */
+ ADCx->CR |= (uint32_t)ADC_CR_ADCAL;
+
+ /* Wait until no ADC calibration is completed */
+ do
+ {
+ calibrationstatus = ADCx->CR & ADC_CR_ADCAL;
+ calibrationcounter++;
+ } while((calibrationcounter != CALIBRATION_TIMEOUT) && (calibrationstatus != 0x00));
+
+ if((uint32_t)(ADCx->CR & ADC_CR_ADCAL) == RESET)
+ {
+ /*Get the calibration factor from the ADC data register */
+ tmpreg = ADCx->DR;
+ }
+ else
+ {
+ /* Error factor */
+ tmpreg = 0x00000000;
+ }
+ return tmpreg;
+}
+
+/**
+ * @brief Stop the on going conversions for the selected ADC.
+ * @note When ADSTP is set, any on going conversion is aborted, and the ADC
+ * data register is not updated with current conversion.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @retval None
+ */
+void ADC_StopOfConversion(ADC_TypeDef* ADCx)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+
+ ADCx->CR |= (uint32_t)ADC_CR_ADSTP;
+}
+
+/**
+ * @brief Start Conversion for the selected ADC channels.
+ * @note In continuous mode, ADSTART is not cleared by hardware with the
+ * assertion of EOSEQ because the sequence is automatic relaunched
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @retval None
+ */
+void ADC_StartOfConversion(ADC_TypeDef* ADCx)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+
+ ADCx->CR |= (uint32_t)ADC_CR_ADSTART;
+}
+
+/**
+ * @brief Returns the last ADCx conversion result data for ADC channel.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @retval The Data conversion value.
+ */
+uint16_t ADC_GetConversionValue(ADC_TypeDef* ADCx)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+
+ /* Return the selected ADC conversion value */
+ return (uint16_t) ADCx->DR;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup ADC_Group6 DMA Configuration functions
+ * @brief Regular Channels DMA Configuration functions
+ *
+@verbatim
+ ===============================================================================
+ ##### DMA Configuration functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to configure the DMA for ADC hannels.
+ Since converted channel values are stored into a unique data register,
+ it is useful to use DMA for conversion of more than one channel. This
+ avoids the loss of the data already stored in the ADC Data register.
+ When the DMA mode is enabled (using the ADC_DMACmd() function), after each
+ conversion of a channel, a DMA request is generated.
+
+ [..] Depending on the "DMA disable selection" configuration (using the
+ ADC_DMARequestModeConfig() function), at the end of the last DMA
+ transfer, two possibilities are allowed:
+ (+) No new DMA request is issued to the DMA controller (One Shot Mode)
+ (+) Requests can continue to be generated (Circular Mode).
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enables or disables the specified ADC DMA request.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param NewState: new state of the selected ADC DMA transfer.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_DMACmd(ADC_TypeDef* ADCx, FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the selected ADC DMA request */
+ ADCx->CFGR1 |= (uint32_t)ADC_CFGR1_DMAEN;
+ }
+ else
+ {
+ /* Disable the selected ADC DMA request */
+ ADCx->CFGR1 &= (uint32_t)(~ADC_CFGR1_DMAEN);
+ }
+}
+
+/**
+ * @brief Enables or disables the ADC DMA request after last transfer (Single-ADC mode)
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param ADC_DMARequestMode: the ADC channel to configure.
+ * This parameter can be one of the following values:
+ * @arg ADC_DMAMode_OneShot: DMA One Shot Mode
+ * @arg ADC_DMAMode_Circular: DMA Circular Mode
+ * @retval None
+ */
+void ADC_DMARequestModeConfig(ADC_TypeDef* ADCx, uint32_t ADC_DMARequestMode)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+
+ ADCx->CFGR1 &= (uint32_t)~ADC_CFGR1_DMACFG;
+ ADCx->CFGR1 |= (uint32_t)ADC_DMARequestMode;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup ADC_Group7 Interrupts and flags management functions
+ * @brief Interrupts and flags management functions.
+ *
+@verbatim
+ ===============================================================================
+ ##### Interrupts and flags management functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to configure the ADC Interrupts
+ and get the status and clear flags and Interrupts pending bits.
+
+ [..] The ADC provide 6 Interrupts sources and 11 Flags which can be divided into
+ 3 groups:
+
+ *** Flags for ADC status ***
+ ======================================================
+ [..]
+ (+)Flags :
+ (##) ADC_FLAG_ADRDY : This flag is set after the ADC has been enabled (bit ADEN=1)
+ and when the ADC reaches a state where it is ready to accept conversion requests
+ (##) ADC_FLAG_ADEN : This flag is set by software to enable the ADC.
+ The ADC will be effectively ready to operate once the ADRDY flag has been set.
+ (##) ADC_FLAG_ADDIS : This flag is cleared once the ADC is effectively
+ disabled.
+ (##) ADC_FLAG_ADSTART : This flag is cleared after the execution of
+ ADC_StopOfConversion() function, at the same time as the ADSTP bit is
+ cleared by hardware
+ (##) ADC_FLAG_ADSTP : This flag is cleared by hardware when the conversion
+ is effectively discarded and the ADC is ready to accept a new start conversion
+ (##) ADC_FLAG_ADCAL : This flag is set once the calibration is complete.
+
+ (+)Interrupts
+ (##) ADC_IT_ADRDY : specifies the interrupt source for ADC ready event.
+
+ *** Flags and Interrupts for ADC channel conversion ***
+ =====================================================
+ [..]
+ (+)Flags :
+ (##) ADC_FLAG_EOC : This flag is set by hardware at the end of each conversion
+ of a channel when a new data result is available in the data register
+ (##) ADC_FLAG_EOSEQ : This bit is set by hardware at the end of the conversion
+ of a sequence of channels selected by ADC_ChannelConfig() function.
+ (##) ADC_FLAG_EOSMP : This bit is set by hardware at the end of the sampling phase.
+ (##) ADC_FLAG_OVR : This flag is set by hardware when an overrun occurs,
+ meaning that a new conversion has complete while the EOC flag was already set.
+
+ (+)Interrupts :
+ (##) ADC_IT_EOC : specifies the interrupt source for end of conversion event.
+ (##) ADC_IT_EOSEQ : specifies the interrupt source for end of sequence event.
+ (##) ADC_IT_EOSMP : specifies the interrupt source for end of sampling event.
+ (##) ADC_IT_OVR : specifies the interrupt source for Overrun detection
+ event.
+
+ *** Flags and Interrupts for the Analog Watchdog ***
+ ================================================
+ [..]
+ (+)Flags :
+ (##) ADC_FLAG_AWD: This flag is set by hardware when the converted
+ voltage crosses the values programmed thrsholds
+
+ (+)Interrupts :
+ (##) ADC_IT_AWD : specifies the interrupt source for Analog watchdog
+ event.
+
+ [..] The user should identify which mode will be used in his application to
+ manage the ADC controller events: Polling mode or Interrupt mode.
+
+ [..] In the Polling Mode it is advised to use the following functions:
+ (+) ADC_GetFlagStatus() : to check if flags events occur.
+ (+) ADC_ClearFlag() : to clear the flags events.
+
+ [..] In the Interrupt Mode it is advised to use the following functions:
+ (+) ADC_ITConfig() : to enable or disable the interrupt source.
+ (+) ADC_GetITStatus() : to check if Interrupt occurs.
+ (+) ADC_ClearITPendingBit() : to clear the Interrupt pending Bit
+ (corresponding Flag).
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enables or disables the specified ADC interrupts.
+ * @param ADCx: where x can be 1 to select the ADC peripheral.
+ * @param ADC_IT: specifies the ADC interrupt sources to be enabled or disabled.
+ * This parameter can be one of the following values:
+ * @arg ADC_IT_ADRDY: ADC ready interrupt
+ * @arg ADC_IT_EOSMP: End of sampling interrupt
+ * @arg ADC_IT_EOC: End of conversion interrupt
+ * @arg ADC_IT_EOSEQ: End of sequence of conversion interrupt
+ * @arg ADC_IT_OVR: overrun interrupt
+ * @arg ADC_IT_AWD: Analog watchdog interrupt
+ * @param NewState: new state of the specified ADC interrupts.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void ADC_ITConfig(ADC_TypeDef* ADCx, uint32_t ADC_IT, FunctionalState NewState)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+ assert_param(IS_ADC_CONFIG_IT(ADC_IT));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the selected ADC interrupts */
+ ADCx->IER |= ADC_IT;
+ }
+ else
+ {
+ /* Disable the selected ADC interrupts */
+ ADCx->IER &= (~(uint32_t)ADC_IT);
+ }
+}
+
+/**
+ * @brief Checks whether the specified ADC flag is set or not.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param ADC_FLAG: specifies the flag to check.
+ * This parameter can be one of the following values:
+ * @arg ADC_FLAG_AWD: Analog watchdog flag
+ * @arg ADC_FLAG_OVR: Overrun flag
+ * @arg ADC_FLAG_EOSEQ: End of Sequence flag
+ * @arg ADC_FLAG_EOC: End of conversion flag
+ * @arg ADC_FLAG_EOSMP: End of sampling flag
+ * @arg ADC_FLAG_ADRDY: ADC Ready flag
+ * @arg ADC_FLAG_ADEN: ADC enable flag
+ * @arg ADC_FLAG_ADDIS: ADC disable flag
+ * @arg ADC_FLAG_ADSTART: ADC start flag
+ * @arg ADC_FLAG_ADSTP: ADC stop flag
+ * @arg ADC_FLAG_ADCAL: ADC Calibration flag
+ * @retval The new state of ADC_FLAG (SET or RESET).
+ */
+FlagStatus ADC_GetFlagStatus(ADC_TypeDef* ADCx, uint32_t ADC_FLAG)
+{
+ FlagStatus bitstatus = RESET;
+ uint32_t tmpreg = 0;
+
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_ADC_GET_FLAG(ADC_FLAG));
+
+ if((uint32_t)(ADC_FLAG & 0x01000000))
+ {
+ tmpreg = ADCx->CR & 0xFEFFFFFF;
+ }
+ else
+ {
+ tmpreg = ADCx->ISR;
+ }
+
+ /* Check the status of the specified ADC flag */
+ if ((tmpreg & ADC_FLAG) != (uint32_t)RESET)
+ {
+ /* ADC_FLAG is set */
+ bitstatus = SET;
+ }
+ else
+ {
+ /* ADC_FLAG is reset */
+ bitstatus = RESET;
+ }
+ /* Return the ADC_FLAG status */
+ return bitstatus;
+}
+
+/**
+ * @brief Clears the ADCx's pending flags.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param ADC_FLAG: specifies the flag to clear.
+ * This parameter can be any combination of the following values:
+ * @arg ADC_FLAG_AWD: Analog watchdog flag
+ * @arg ADC_FLAG_EOC: End of conversion flag
+ * @arg ADC_FLAG_ADRDY: ADC Ready flag
+ * @arg ADC_FLAG_EOSMP: End of sampling flag
+ * @arg ADC_FLAG_EOSEQ: End of Sequence flag
+ * @arg ADC_FLAG_OVR: Overrun flag
+ * @retval None
+ */
+void ADC_ClearFlag(ADC_TypeDef* ADCx, uint32_t ADC_FLAG)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_ADC_CLEAR_FLAG(ADC_FLAG));
+
+ /* Clear the selected ADC flags */
+ ADCx->ISR = (uint32_t)ADC_FLAG;
+}
+
+/**
+ * @brief Checks whether the specified ADC interrupt has occurred or not.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral
+ * @param ADC_IT: specifies the ADC interrupt source to check.
+ * This parameter can be one of the following values:
+ * @arg ADC_IT_ADRDY: ADC ready interrupt
+ * @arg ADC_IT_EOSMP: End of sampling interrupt
+ * @arg ADC_IT_EOC: End of conversion interrupt
+ * @arg ADC_IT_EOSEQ: End of sequence of conversion interrupt
+ * @arg ADC_IT_OVR: overrun interrupt
+ * @arg ADC_IT_AWD: Analog watchdog interrupt
+ * @retval The new state of ADC_IT (SET or RESET).
+ */
+ITStatus ADC_GetITStatus(ADC_TypeDef* ADCx, uint32_t ADC_IT)
+{
+ ITStatus bitstatus = RESET;
+ uint32_t enablestatus = 0;
+
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_ADC_GET_IT(ADC_IT));
+
+ /* Get the ADC_IT enable bit status */
+ enablestatus = (uint32_t)(ADCx->IER & ADC_IT);
+
+ /* Check the status of the specified ADC interrupt */
+ if (((uint32_t)(ADCx->ISR & ADC_IT) != (uint32_t)RESET) && (enablestatus != (uint32_t)RESET))
+ {
+ /* ADC_IT is set */
+ bitstatus = SET;
+ }
+ else
+ {
+ /* ADC_IT is reset */
+ bitstatus = RESET;
+ }
+ /* Return the ADC_IT status */
+ return bitstatus;
+}
+
+/**
+ * @brief Clears the ADCx's interrupt pending bits.
+ * @param ADCx: where x can be 1 to select the ADC1 peripheral.
+ * @param ADC_IT: specifies the ADC interrupt pending bit to clear.
+ * This parameter can be one of the following values:
+ * @arg ADC_IT_ADRDY: ADC ready interrupt
+ * @arg ADC_IT_EOSMP: End of sampling interrupt
+ * @arg ADC_IT_EOC: End of conversion interrupt
+ * @arg ADC_IT_EOSEQ: End of sequence of conversion interrupt
+ * @arg ADC_IT_OVR: overrun interrupt
+ * @arg ADC_IT_AWD: Analog watchdog interrupt
+ * @retval None
+ */
+void ADC_ClearITPendingBit(ADC_TypeDef* ADCx, uint32_t ADC_IT)
+{
+ /* Check the parameters */
+ assert_param(IS_ADC_ALL_PERIPH(ADCx));
+ assert_param(IS_ADC_CLEAR_IT(ADC_IT));
+
+ /* Clear the selected ADC interrupt pending bits */
+ ADCx->ISR = (uint32_t)ADC_IT;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/