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targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_adc.c@636:a11c0372f0ba, 2015-09-30 (annotated)

Committer:
mbed_official
Date:
Wed Sep 30 17:00:09 2015 +0100
Revision:
636:a11c0372f0ba
Parent:
490:119543c9f674 
Synchronized with git revision d29c98dae61be0946ddf3a3c641c7726056f9452



Full URL: https://github.com/mbedmicro/mbed/commit/d29c98dae61be0946ddf3a3c641c7726056f9452/



Added support for SAMW25

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 376:cb4d9db17537 1 /**
mbed_official 376:cb4d9db17537 2 ******************************************************************************
mbed_official 376:cb4d9db17537 3 * @file stm32l0xx_hal_adc.c
mbed_official 376:cb4d9db17537 4 * @author MCD Application Team
mbed_official 490:119543c9f674 5 * @version V1.2.0
mbed_official 490:119543c9f674 6 * @date 06-February-2015
mbed_official 376:cb4d9db17537 7 * @brief This file provides firmware functions to manage the following
mbed_official 376:cb4d9db17537 8 * functionalities of the Analog to Digital Convertor (ADC)
mbed_official 376:cb4d9db17537 9 * peripheral:
mbed_official 376:cb4d9db17537 10 * + Initialization and de-initialization functions
mbed_official 376:cb4d9db17537 11 * ++ Initialization and Configuration of ADC
mbed_official 376:cb4d9db17537 12 * + Operation functions
mbed_official 376:cb4d9db17537 13 * ++ Start, stop, get result of conversions of regular
mbed_official 376:cb4d9db17537 14 * groups, using 3 possible modes : polling, interruption or DMA.
mbed_official 376:cb4d9db17537 15 * ++ Calibration feature
mbed_official 376:cb4d9db17537 16 * + Control functions
mbed_official 376:cb4d9db17537 17 * ++ Analog Watchdog configuration
mbed_official 376:cb4d9db17537 18 * ++ Regular Channels Configuration
mbed_official 376:cb4d9db17537 19 * + State functions
mbed_official 376:cb4d9db17537 20 * ++ ADC state machine management
mbed_official 376:cb4d9db17537 21 * ++ Interrupts and flags management
mbed_official 376:cb4d9db17537 22 *
mbed_official 376:cb4d9db17537 23 @verbatim
mbed_official 376:cb4d9db17537 24 ==============================================================================
mbed_official 376:cb4d9db17537 25 ##### ADC specific features #####
mbed_official 376:cb4d9db17537 26 ==============================================================================
mbed_official 376:cb4d9db17537 27 [..]
mbed_official 376:cb4d9db17537 28 (#) 12-bit, 10-bit, 8-bit or 6-bit configurable resolution.
mbed_official 376:cb4d9db17537 29
mbed_official 376:cb4d9db17537 30 (#) A built-in hardware oversampler allows to improve analog performances
mbed_official 376:cb4d9db17537 31 while off-loading the related computational burden from the CPU.
mbed_official 376:cb4d9db17537 32
mbed_official 376:cb4d9db17537 33 (#) Interrupt generation at the end of conversion and in case of analog
mbed_official 376:cb4d9db17537 34 watchdog or overrun events.
mbed_official 376:cb4d9db17537 35
mbed_official 376:cb4d9db17537 36 (#) Single and continuous conversion modes.
mbed_official 376:cb4d9db17537 37
mbed_official 376:cb4d9db17537 38 (#) Scan or discontinuous mode conversion of channel 0 to channel 18.
mbed_official 376:cb4d9db17537 39
mbed_official 376:cb4d9db17537 40 (#) Configurable scan direction (Upward from channel 0 to 18 or Backward from
mbed_official 376:cb4d9db17537 41 channel 18 to channel 0)
mbed_official 376:cb4d9db17537 42
mbed_official 376:cb4d9db17537 43 (#) Data alignment with in-built data coherency.
mbed_official 376:cb4d9db17537 44
mbed_official 376:cb4d9db17537 45 (#) Channel-wise programmable sampling time.
mbed_official 376:cb4d9db17537 46
mbed_official 376:cb4d9db17537 47 (#) External trigger option with configurable polarity.
mbed_official 376:cb4d9db17537 48
mbed_official 376:cb4d9db17537 49 (#) DMA request generation during regular channel conversion.
mbed_official 376:cb4d9db17537 50
mbed_official 376:cb4d9db17537 51 (#) ADC supply requirements: 2.4 V to 3.6 V at full speed and down to 1.8 V at
mbed_official 376:cb4d9db17537 52 slower speed.
mbed_official 376:cb4d9db17537 53
mbed_official 376:cb4d9db17537 54 (#) ADC input range: VREF- =VIN =VREF+.
mbed_official 376:cb4d9db17537 55
mbed_official 376:cb4d9db17537 56 (#) ADC self-calibration.
mbed_official 376:cb4d9db17537 57
mbed_official 376:cb4d9db17537 58 (#) ADC is automatically powered off (AutoOff mode) except during the active
mbed_official 376:cb4d9db17537 59 conversion phase. This dramatically reduces the power consumption of the
mbed_official 376:cb4d9db17537 60 ADC.
mbed_official 376:cb4d9db17537 61
mbed_official 376:cb4d9db17537 62 (#) Wait mode to prevent ADC overrun in applications with low frequency.
mbed_official 376:cb4d9db17537 63
mbed_official 376:cb4d9db17537 64
mbed_official 376:cb4d9db17537 65 ##### How to use this driver #####
mbed_official 376:cb4d9db17537 66 ==============================================================================
mbed_official 376:cb4d9db17537 67 [..]
mbed_official 376:cb4d9db17537 68
mbed_official 376:cb4d9db17537 69 (#) Enable the ADC interface
mbed_official 376:cb4d9db17537 70 As prerequisite, into HAL_ADC_MspInit(), ADC clock must be configured
mbed_official 376:cb4d9db17537 71 at RCC top level.
mbed_official 376:cb4d9db17537 72
mbed_official 376:cb4d9db17537 73 Depending on both possible clock sources: PCLK clock or ADC asynchronous
mbed_official 376:cb4d9db17537 74 clock.
mbed_official 490:119543c9f674 75 __HAL_RCC_ADC1_CLK_ENABLE();
mbed_official 376:cb4d9db17537 76
mbed_official 376:cb4d9db17537 77
mbed_official 376:cb4d9db17537 78 (#) ADC pins configuration
mbed_official 376:cb4d9db17537 79 (++) Enable the clock for the ADC GPIOs using the following function:
mbed_official 490:119543c9f674 80 __HAL_RCC_GPIOx_CLK_ENABLE();
mbed_official 376:cb4d9db17537 81 (++) Configure these ADC pins in analog mode using HAL_GPIO_Init();
mbed_official 376:cb4d9db17537 82
mbed_official 376:cb4d9db17537 83 (#) Configure the ADC parameters (conversion resolution, oversampler,
mbed_official 376:cb4d9db17537 84 data alignment, continuous mode,...) using the HAL_ADC_Init() function.
mbed_official 376:cb4d9db17537 85
mbed_official 376:cb4d9db17537 86 (#) Activate the ADC peripheral using one of the start functions:
mbed_official 376:cb4d9db17537 87 HAL_ADC_Start(), HAL_ADC_Start_IT() or HAL_ADC_Start_DMA()
mbed_official 376:cb4d9db17537 88
mbed_official 376:cb4d9db17537 89 *** Channels configuration ***
mbed_official 376:cb4d9db17537 90 ===============================
mbed_official 376:cb4d9db17537 91 [..]
mbed_official 376:cb4d9db17537 92 (+) To configure the ADC channels group, use HAL_ADC_ConfigChannel() function.
mbed_official 376:cb4d9db17537 93 (+) To read the ADC converted values, use the HAL_ADC_GetValue() function.
mbed_official 376:cb4d9db17537 94
mbed_official 376:cb4d9db17537 95 *** DMA feature configuration ***
mbed_official 376:cb4d9db17537 96 =================================
mbed_official 376:cb4d9db17537 97 [..]
mbed_official 376:cb4d9db17537 98 (+) To enable the DMA mode, use the HAL_ADC_Start_DMA() function.
mbed_official 376:cb4d9db17537 99 (+) To enable the generation of DMA requests continuously at the end of
mbed_official 376:cb4d9db17537 100 the last DMA transfer, set .Init.DMAContinuousRequests to ENABLE and
mbed_official 376:cb4d9db17537 101 call HAL_ADC_Init() function.
mbed_official 376:cb4d9db17537 102
mbed_official 376:cb4d9db17537 103
mbed_official 376:cb4d9db17537 104 @endverbatim
mbed_official 376:cb4d9db17537 105 ******************************************************************************
mbed_official 376:cb4d9db17537 106 * @attention
mbed_official 376:cb4d9db17537 107 *
mbed_official 490:119543c9f674 108 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
mbed_official 376:cb4d9db17537 109 *
mbed_official 376:cb4d9db17537 110 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 376:cb4d9db17537 111 * are permitted provided that the following conditions are met:
mbed_official 376:cb4d9db17537 112 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 376:cb4d9db17537 113 * this list of conditions and the following disclaimer.
mbed_official 376:cb4d9db17537 114 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 376:cb4d9db17537 115 * this list of conditions and the following disclaimer in the documentation
mbed_official 376:cb4d9db17537 116 * and/or other materials provided with the distribution.
mbed_official 376:cb4d9db17537 117 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 376:cb4d9db17537 118 * may be used to endorse or promote products derived from this software
mbed_official 376:cb4d9db17537 119 * without specific prior written permission.
mbed_official 376:cb4d9db17537 120 *
mbed_official 376:cb4d9db17537 121 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 376:cb4d9db17537 122 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 376:cb4d9db17537 123 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 376:cb4d9db17537 124 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 376:cb4d9db17537 125 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 376:cb4d9db17537 126 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 376:cb4d9db17537 127 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 376:cb4d9db17537 128 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 376:cb4d9db17537 129 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 376:cb4d9db17537 130 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 376:cb4d9db17537 131 *
mbed_official 376:cb4d9db17537 132 ******************************************************************************
mbed_official 376:cb4d9db17537 133 */
mbed_official 376:cb4d9db17537 134
mbed_official 376:cb4d9db17537 135 /* Includes ------------------------------------------------------------------*/
mbed_official 376:cb4d9db17537 136 #include "stm32l0xx_hal.h"
mbed_official 376:cb4d9db17537 137
mbed_official 376:cb4d9db17537 138 /** @addtogroup STM32L0xx_HAL_Driver
mbed_official 376:cb4d9db17537 139 * @{
mbed_official 376:cb4d9db17537 140 */
mbed_official 376:cb4d9db17537 141
mbed_official 376:cb4d9db17537 142 /** @addtogroup ADC
mbed_official 376:cb4d9db17537 143 * @brief ADC driver modules
mbed_official 376:cb4d9db17537 144 * @{
mbed_official 376:cb4d9db17537 145 */
mbed_official 376:cb4d9db17537 146
mbed_official 376:cb4d9db17537 147 #ifdef HAL_ADC_MODULE_ENABLED
mbed_official 376:cb4d9db17537 148
mbed_official 376:cb4d9db17537 149 /* Private typedef -----------------------------------------------------------*/
mbed_official 376:cb4d9db17537 150 /* Private define ------------------------------------------------------------*/
mbed_official 490:119543c9f674 151
mbed_official 490:119543c9f674 152 /* Delay for ADC stabilization time. */
mbed_official 490:119543c9f674 153 /* Maximum delay is 1us (refer to device datasheet, parameter tSTART). */
mbed_official 490:119543c9f674 154 /* Unit: us */
mbed_official 490:119543c9f674 155 #define ADC_STAB_DELAY_US ((uint32_t) 1)
mbed_official 490:119543c9f674 156
mbed_official 490:119543c9f674 157 /* Delay for temperature sensor stabilization time. */
mbed_official 490:119543c9f674 158 /* Maximum delay is 10us (refer to device datasheet, parameter tSTART). */
mbed_official 490:119543c9f674 159 /* Unit: us */
mbed_official 490:119543c9f674 160 #define ADC_TEMPSENSOR_DELAY_US ((uint32_t) 10)
mbed_official 490:119543c9f674 161
mbed_official 376:cb4d9db17537 162 /* Private macro -------------------------------------------------------------*/
mbed_official 376:cb4d9db17537 163 /* Private variables ---------------------------------------------------------*/
mbed_official 376:cb4d9db17537 164 /* Private function prototypes -----------------------------------------------*/
mbed_official 376:cb4d9db17537 165 static HAL_StatusTypeDef ADC_Enable(ADC_HandleTypeDef* hadc);
mbed_official 376:cb4d9db17537 166 static void ADC_DMAConvCplt(DMA_HandleTypeDef *hdma);
mbed_official 376:cb4d9db17537 167 static void ADC_DMAHalfConvCplt(DMA_HandleTypeDef *hdma);
mbed_official 376:cb4d9db17537 168 static void ADC_DMAError(DMA_HandleTypeDef *hdma);
mbed_official 376:cb4d9db17537 169 static HAL_StatusTypeDef ADC_ConversionStop(ADC_HandleTypeDef* hadc, uint32_t ConversionGroup);
mbed_official 376:cb4d9db17537 170 static HAL_StatusTypeDef ADC_Disable(ADC_HandleTypeDef* hadc);
mbed_official 490:119543c9f674 171 static void ADC_DelayMicroSecond(uint32_t microSecond);
mbed_official 376:cb4d9db17537 172
mbed_official 376:cb4d9db17537 173 /* Private functions ---------------------------------------------------------*/
mbed_official 376:cb4d9db17537 174
mbed_official 376:cb4d9db17537 175 /** @defgroup ADC_Private_Functions
mbed_official 376:cb4d9db17537 176 * @{
mbed_official 376:cb4d9db17537 177 */
mbed_official 376:cb4d9db17537 178
mbed_official 376:cb4d9db17537 179 /** @defgroup ADC_Group1 Initialization/de-initialization functions
mbed_official 376:cb4d9db17537 180 * @brief Initialization and Configuration functions
mbed_official 376:cb4d9db17537 181 *
mbed_official 376:cb4d9db17537 182 @verbatim
mbed_official 376:cb4d9db17537 183 ===============================================================================
mbed_official 376:cb4d9db17537 184 ##### Initialization and de-initialization functions #####
mbed_official 376:cb4d9db17537 185 ===============================================================================
mbed_official 376:cb4d9db17537 186 [..] This section provides functions allowing to:
mbed_official 376:cb4d9db17537 187 (+) Initialize and configure the ADC.
mbed_official 376:cb4d9db17537 188 (+) De-initialize the ADC.
mbed_official 376:cb4d9db17537 189
mbed_official 376:cb4d9db17537 190 @endverbatim
mbed_official 376:cb4d9db17537 191 * @{
mbed_official 376:cb4d9db17537 192 */
mbed_official 376:cb4d9db17537 193
mbed_official 376:cb4d9db17537 194
mbed_official 376:cb4d9db17537 195 /**
mbed_official 376:cb4d9db17537 196 * @brief Initializes the ADCx peripheral according to the specified parameters
mbed_official 376:cb4d9db17537 197 * in the ADC_InitStruct.
mbed_official 376:cb4d9db17537 198 * @note This function is used to configure the global features of the ADC
mbed_official 376:cb4d9db17537 199 * (ClockPrescaler, Resolution, Data Alignment and number of conversion), however,
mbed_official 376:cb4d9db17537 200 * the rest of the configuration parameters are specific to the regular
mbed_official 376:cb4d9db17537 201 * channels group (scan mode activation, continuous mode activation,
mbed_official 376:cb4d9db17537 202 * External trigger source and edge, DMA continuous request after the
mbed_official 376:cb4d9db17537 203 * last transfer and End of conversion selection).
mbed_official 376:cb4d9db17537 204 *
mbed_official 376:cb4d9db17537 205 * As prerequisite, into HAL_ADC_MspInit(), ADC clock must be
mbed_official 376:cb4d9db17537 206 * configured at RCC top level.
mbed_official 376:cb4d9db17537 207 * See commented example code below that can be copied
mbed_official 376:cb4d9db17537 208 * and uncommented into HAL_ADC_MspInit().
mbed_official 376:cb4d9db17537 209 *
mbed_official 376:cb4d9db17537 210 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 211 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 212 * @retval HAL status
mbed_official 376:cb4d9db17537 213 */
mbed_official 376:cb4d9db17537 214 HAL_StatusTypeDef HAL_ADC_Init(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 215 {
mbed_official 376:cb4d9db17537 216 uint32_t tickstart = 0x00;
mbed_official 376:cb4d9db17537 217
mbed_official 376:cb4d9db17537 218 /* Check ADC handle */
mbed_official 490:119543c9f674 219 if(hadc == NULL)
mbed_official 376:cb4d9db17537 220 {
mbed_official 376:cb4d9db17537 221 return HAL_ERROR;
mbed_official 376:cb4d9db17537 222 }
mbed_official 376:cb4d9db17537 223
mbed_official 376:cb4d9db17537 224 /* Check the parameters */
mbed_official 376:cb4d9db17537 225 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 376:cb4d9db17537 226 assert_param(IS_ADC_CLOCKPRESCALER(hadc->Init.ClockPrescaler));
mbed_official 376:cb4d9db17537 227 assert_param(IS_ADC_RESOLUTION(hadc->Init.Resolution));
mbed_official 376:cb4d9db17537 228 assert_param(IS_ADC_SAMPLE_TIME(hadc->Init.SamplingTime));
mbed_official 490:119543c9f674 229 assert_param(IS_ADC_SCAN_MODE(hadc->Init.ScanConvMode));
mbed_official 376:cb4d9db17537 230 assert_param(IS_ADC_DATA_ALIGN(hadc->Init.DataAlign));
mbed_official 376:cb4d9db17537 231 assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode));
mbed_official 376:cb4d9db17537 232 assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DiscontinuousConvMode));
mbed_official 376:cb4d9db17537 233 assert_param(IS_ADC_EXTTRIG_EDGE(hadc->Init.ExternalTrigConvEdge));
mbed_official 376:cb4d9db17537 234 assert_param(IS_ADC_EXTERNAL_TRIG_CONV(hadc->Init.ExternalTrigConv));
mbed_official 376:cb4d9db17537 235 assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DMAContinuousRequests));
mbed_official 376:cb4d9db17537 236 assert_param(IS_ADC_EOC_SELECTION(hadc->Init.EOCSelection));
mbed_official 376:cb4d9db17537 237 assert_param(IS_ADC_OVERRUN(hadc->Init.Overrun));
mbed_official 376:cb4d9db17537 238 assert_param(IS_FUNCTIONAL_STATE(hadc->Init.LowPowerAutoWait));
mbed_official 376:cb4d9db17537 239 assert_param(IS_FUNCTIONAL_STATE(hadc->Init.LowPowerFrequencyMode));
mbed_official 490:119543c9f674 240 assert_param(IS_FUNCTIONAL_STATE(hadc->Init.LowPowerAutoPowerOff));
mbed_official 376:cb4d9db17537 241 assert_param(IS_FUNCTIONAL_STATE(hadc->Init.OversamplingMode));
mbed_official 376:cb4d9db17537 242
mbed_official 376:cb4d9db17537 243 if(hadc->State == HAL_ADC_STATE_RESET)
mbed_official 376:cb4d9db17537 244 {
mbed_official 376:cb4d9db17537 245 /* Init the low level hardware */
mbed_official 376:cb4d9db17537 246 HAL_ADC_MspInit(hadc);
mbed_official 376:cb4d9db17537 247 }
mbed_official 376:cb4d9db17537 248
mbed_official 490:119543c9f674 249 /* Configuration of ADC parameters if previous preliminary actions are */
mbed_official 490:119543c9f674 250 /* correctly completed. */
mbed_official 490:119543c9f674 251 /* and if there is no conversion on going (ADC can be enabled anyway, */
mbed_official 490:119543c9f674 252 /* in case of call of this function to update a parameter */
mbed_official 490:119543c9f674 253 /* on the fly). */
mbed_official 490:119543c9f674 254 if ((hadc->State == HAL_ADC_STATE_ERROR) ||
mbed_official 490:119543c9f674 255 (ADC_IS_CONVERSION_ONGOING(hadc) != RESET) )
mbed_official 490:119543c9f674 256 {
mbed_official 490:119543c9f674 257 /* Update ADC state machine to error */
mbed_official 490:119543c9f674 258 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 490:119543c9f674 259 /* Process unlocked */
mbed_official 490:119543c9f674 260 __HAL_UNLOCK(hadc);
mbed_official 490:119543c9f674 261 return HAL_ERROR;
mbed_official 490:119543c9f674 262 }
mbed_official 490:119543c9f674 263
mbed_official 376:cb4d9db17537 264 /* Initialize the ADC state */
mbed_official 376:cb4d9db17537 265 hadc->State = HAL_ADC_STATE_BUSY;
mbed_official 376:cb4d9db17537 266
mbed_official 376:cb4d9db17537 267 /* Configuration of ADC clock: clock source PCLK or asynchronous with
mbed_official 376:cb4d9db17537 268 selectable prescaler */
mbed_official 376:cb4d9db17537 269 __HAL_ADC_CLOCK_PRESCALER(hadc);
mbed_official 376:cb4d9db17537 270
mbed_official 376:cb4d9db17537 271 /* Set the Low Frequency mode */
mbed_official 376:cb4d9db17537 272 ADC->CCR &= (uint32_t)~ADC_CCR_LFMEN;
mbed_official 376:cb4d9db17537 273 ADC->CCR |=__HAL_ADC_CCR_LOWFREQUENCY(hadc->Init.LowPowerFrequencyMode);
mbed_official 376:cb4d9db17537 274
mbed_official 376:cb4d9db17537 275 /* Enable voltage regulator (if disabled at this step) */
mbed_official 376:cb4d9db17537 276 if (HAL_IS_BIT_CLR(hadc->Instance->CR, ADC_CR_ADVREGEN))
mbed_official 376:cb4d9db17537 277 {
mbed_official 376:cb4d9db17537 278 /* Disable the ADC (if not already disabled) */
mbed_official 490:119543c9f674 279 if (ADC_IS_ENABLE(hadc) != RESET )
mbed_official 376:cb4d9db17537 280 {
mbed_official 376:cb4d9db17537 281 /* Check if conditions to disable the ADC are fulfilled */
mbed_official 490:119543c9f674 282 if (ADC_DISABLING_CONDITIONS(hadc) != RESET)
mbed_official 376:cb4d9db17537 283 {
mbed_official 376:cb4d9db17537 284 __HAL_ADC_DISABLE(hadc);
mbed_official 376:cb4d9db17537 285 }
mbed_official 376:cb4d9db17537 286 else
mbed_official 376:cb4d9db17537 287 {
mbed_official 376:cb4d9db17537 288 hadc->State= HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 289
mbed_official 376:cb4d9db17537 290 /* Process unlocked */
mbed_official 376:cb4d9db17537 291 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 292
mbed_official 376:cb4d9db17537 293 return HAL_ERROR;
mbed_official 376:cb4d9db17537 294 }
mbed_official 376:cb4d9db17537 295
mbed_official 376:cb4d9db17537 296 /* Get timeout */
mbed_official 376:cb4d9db17537 297 tickstart = HAL_GetTick();
mbed_official 376:cb4d9db17537 298
mbed_official 376:cb4d9db17537 299 /* Wait for disabling completion */
mbed_official 376:cb4d9db17537 300 while(HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADEN))
mbed_official 376:cb4d9db17537 301 {
mbed_official 376:cb4d9db17537 302 /* Check for the Timeout */
mbed_official 376:cb4d9db17537 303 if(ADC_ENABLE_TIMEOUT != HAL_MAX_DELAY)
mbed_official 376:cb4d9db17537 304 {
mbed_official 376:cb4d9db17537 305 if((HAL_GetTick() - tickstart ) > ADC_DISABLE_TIMEOUT)
mbed_official 376:cb4d9db17537 306 {
mbed_official 376:cb4d9db17537 307 hadc->State= HAL_ADC_STATE_TIMEOUT;
mbed_official 376:cb4d9db17537 308
mbed_official 376:cb4d9db17537 309 /* Process unlocked */
mbed_official 376:cb4d9db17537 310 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 311
mbed_official 376:cb4d9db17537 312 return HAL_TIMEOUT;
mbed_official 376:cb4d9db17537 313 }
mbed_official 376:cb4d9db17537 314 }
mbed_official 376:cb4d9db17537 315 }
mbed_official 376:cb4d9db17537 316
mbed_official 376:cb4d9db17537 317 }
mbed_official 376:cb4d9db17537 318
mbed_official 376:cb4d9db17537 319 /* Set ADVREGEN bit */
mbed_official 376:cb4d9db17537 320 hadc->Instance->CR |= ADC_CR_ADVREGEN;
mbed_official 376:cb4d9db17537 321 }
mbed_official 376:cb4d9db17537 322
mbed_official 376:cb4d9db17537 323 /* Configuration of ADC: */
mbed_official 376:cb4d9db17537 324 /* - Resolution */
mbed_official 376:cb4d9db17537 325 /* - Data alignment */
mbed_official 376:cb4d9db17537 326 /* - Scan direction */
mbed_official 376:cb4d9db17537 327 /* - External trigger to start conversion */
mbed_official 376:cb4d9db17537 328 /* - External trigger polarity */
mbed_official 376:cb4d9db17537 329 /* - Continuous conversion mode */
mbed_official 376:cb4d9db17537 330 /* - DMA continuous request */
mbed_official 376:cb4d9db17537 331 /* - Overrun */
mbed_official 376:cb4d9db17537 332 /* - AutoDelay feature */
mbed_official 376:cb4d9db17537 333 /* - Discontinuous mode */
mbed_official 376:cb4d9db17537 334 hadc->Instance->CFGR1 &= ~( ADC_CFGR1_RES |
mbed_official 376:cb4d9db17537 335 ADC_CFGR1_ALIGN |
mbed_official 376:cb4d9db17537 336 ADC_CFGR1_SCANDIR |
mbed_official 376:cb4d9db17537 337 ADC_CFGR1_EXTSEL |
mbed_official 376:cb4d9db17537 338 ADC_CFGR1_EXTEN |
mbed_official 376:cb4d9db17537 339 ADC_CFGR1_CONT |
mbed_official 376:cb4d9db17537 340 ADC_CFGR1_DMACFG |
mbed_official 376:cb4d9db17537 341 ADC_CFGR1_OVRMOD |
mbed_official 376:cb4d9db17537 342 ADC_CFGR1_AUTDLY |
mbed_official 376:cb4d9db17537 343 ADC_CFGR1_AUTOFF |
mbed_official 376:cb4d9db17537 344 ADC_CFGR1_DISCEN);
mbed_official 376:cb4d9db17537 345
mbed_official 376:cb4d9db17537 346 hadc->Instance->CFGR1 |= ( hadc->Init.Resolution |
mbed_official 376:cb4d9db17537 347 hadc->Init.DataAlign |
mbed_official 490:119543c9f674 348 ADC_SCANDIR(hadc->Init.ScanConvMode) |
mbed_official 376:cb4d9db17537 349 hadc->Init.ExternalTrigConvEdge |
mbed_official 490:119543c9f674 350 ADC_CONTINUOUS(hadc->Init.ContinuousConvMode) |
mbed_official 490:119543c9f674 351 ADC_DMACONTREQ(hadc->Init.DMAContinuousRequests) |
mbed_official 376:cb4d9db17537 352 hadc->Init.Overrun |
mbed_official 376:cb4d9db17537 353 __HAL_ADC_CFGR1_AutoDelay(hadc->Init.LowPowerAutoWait) |
mbed_official 490:119543c9f674 354 __HAL_ADC_CFGR1_AUTOFF(hadc->Init.LowPowerAutoPowerOff));
mbed_official 376:cb4d9db17537 355
mbed_official 376:cb4d9db17537 356 /* Configure the external trigger only if Conversion edge is not "NONE" */
mbed_official 490:119543c9f674 357 if (hadc->Init.ExternalTrigConvEdge != ADC_EXTERNALTRIGCONVEDGE_NONE)
mbed_official 376:cb4d9db17537 358 {
mbed_official 376:cb4d9db17537 359 hadc->Instance->CFGR1 |= hadc->Init.ExternalTrigConv;
mbed_official 376:cb4d9db17537 360 }
mbed_official 376:cb4d9db17537 361
mbed_official 376:cb4d9db17537 362 /* Enable discontinuous mode only if continuous mode is disabled */
mbed_official 376:cb4d9db17537 363 if ((hadc->Init.DiscontinuousConvMode == ENABLE) && (hadc->Init.ContinuousConvMode == DISABLE))
mbed_official 376:cb4d9db17537 364 {
mbed_official 376:cb4d9db17537 365 /* Enable the selected ADC discontinuous mode */
mbed_official 376:cb4d9db17537 366 hadc->Instance->CFGR1 |= ( ADC_CFGR1_DISCEN);
mbed_official 376:cb4d9db17537 367 }
mbed_official 376:cb4d9db17537 368
mbed_official 376:cb4d9db17537 369 if (hadc->Init.OversamplingMode == ENABLE)
mbed_official 376:cb4d9db17537 370 {
mbed_official 376:cb4d9db17537 371 assert_param(IS_ADC_OVERSAMPLING_RATIO(hadc->Init.Oversample.Ratio));
mbed_official 376:cb4d9db17537 372 assert_param(IS_ADC_RIGHT_BIT_SHIFT(hadc->Init.Oversample.RightBitShift));
mbed_official 376:cb4d9db17537 373 assert_param(IS_ADC_TRIGGERED_OVERSAMPLING_MODE(hadc->Init.Oversample.TriggeredMode));
mbed_official 376:cb4d9db17537 374
mbed_official 376:cb4d9db17537 375 /* Configuration of Oversampler: */
mbed_official 376:cb4d9db17537 376 /* - Oversampling Ratio */
mbed_official 376:cb4d9db17537 377 /* - Right bit shift */
mbed_official 376:cb4d9db17537 378 /* - Triggered mode */
mbed_official 376:cb4d9db17537 379
mbed_official 376:cb4d9db17537 380 hadc->Instance->CFGR2 &= ~( ADC_CFGR2_OVSR |
mbed_official 376:cb4d9db17537 381 ADC_CFGR2_OVSS |
mbed_official 376:cb4d9db17537 382 ADC_CFGR2_TOVS );
mbed_official 376:cb4d9db17537 383
mbed_official 376:cb4d9db17537 384 hadc->Instance->CFGR2 |= ( hadc->Init.Oversample.Ratio |
mbed_official 376:cb4d9db17537 385 hadc->Init.Oversample.RightBitShift |
mbed_official 376:cb4d9db17537 386 hadc->Init.Oversample.TriggeredMode );
mbed_official 376:cb4d9db17537 387
mbed_official 376:cb4d9db17537 388 /* Enable OverSampling mode */
mbed_official 376:cb4d9db17537 389 hadc->Instance->CFGR2 |= ADC_CFGR2_OVSE;
mbed_official 376:cb4d9db17537 390 }
mbed_official 376:cb4d9db17537 391 else
mbed_official 376:cb4d9db17537 392 {
mbed_official 376:cb4d9db17537 393 /* Disable OverSampling mode */
mbed_official 376:cb4d9db17537 394 hadc->Instance->CFGR2 &= ~ADC_CFGR2_OVSE;
mbed_official 376:cb4d9db17537 395 }
mbed_official 376:cb4d9db17537 396
mbed_official 376:cb4d9db17537 397 /* Clear the old sampling time */
mbed_official 376:cb4d9db17537 398 hadc->Instance->SMPR &= (uint32_t)(~ADC_SMPR_SMPR);
mbed_official 376:cb4d9db17537 399
mbed_official 376:cb4d9db17537 400 /* Set the new sample time */
mbed_official 376:cb4d9db17537 401 hadc->Instance->SMPR |= hadc->Init.SamplingTime;
mbed_official 376:cb4d9db17537 402
mbed_official 376:cb4d9db17537 403
mbed_official 376:cb4d9db17537 404 /* Set ADC error code to none */
mbed_official 376:cb4d9db17537 405 hadc->ErrorCode = HAL_ADC_ERROR_NONE;
mbed_official 376:cb4d9db17537 406
mbed_official 376:cb4d9db17537 407 /* Initialize the ADC state */
mbed_official 376:cb4d9db17537 408 hadc->State = HAL_ADC_STATE_READY;
mbed_official 376:cb4d9db17537 409
mbed_official 376:cb4d9db17537 410 /* Return function status */
mbed_official 376:cb4d9db17537 411 return HAL_OK;
mbed_official 376:cb4d9db17537 412 }
mbed_official 376:cb4d9db17537 413
mbed_official 376:cb4d9db17537 414 /**
mbed_official 376:cb4d9db17537 415 * @brief Deinitialize the ADC peripheral registers to its default reset values.
mbed_official 376:cb4d9db17537 416 * @note To not impact other ADCs, reset of common ADC registers have been
mbed_official 376:cb4d9db17537 417 * left commented below.
mbed_official 376:cb4d9db17537 418 * If needed, the example code can be copied and uncommented into
mbed_official 376:cb4d9db17537 419 * function HAL_ADC_MspDeInit().
mbed_official 376:cb4d9db17537 420 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 421 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 422 * @retval HAL status
mbed_official 376:cb4d9db17537 423 */
mbed_official 376:cb4d9db17537 424 HAL_StatusTypeDef HAL_ADC_DeInit(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 425 {
mbed_official 376:cb4d9db17537 426 uint32_t tickstart = 0;
mbed_official 376:cb4d9db17537 427
mbed_official 376:cb4d9db17537 428 /* Check ADC handle */
mbed_official 490:119543c9f674 429 if(hadc == NULL)
mbed_official 376:cb4d9db17537 430 {
mbed_official 376:cb4d9db17537 431 return HAL_ERROR;
mbed_official 376:cb4d9db17537 432 }
mbed_official 376:cb4d9db17537 433
mbed_official 376:cb4d9db17537 434 /* Check the parameters */
mbed_official 376:cb4d9db17537 435 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 376:cb4d9db17537 436
mbed_official 376:cb4d9db17537 437 /* Change ADC state */
mbed_official 376:cb4d9db17537 438 hadc->State = HAL_ADC_STATE_BUSY;
mbed_official 376:cb4d9db17537 439
mbed_official 376:cb4d9db17537 440 /* Stop potential conversion ongoing */
mbed_official 376:cb4d9db17537 441 if (HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADSTART) && HAL_IS_BIT_CLR(hadc->Instance->CR, ADC_CR_ADDIS))
mbed_official 376:cb4d9db17537 442 {
mbed_official 376:cb4d9db17537 443 /* Stop regular conversion */
mbed_official 376:cb4d9db17537 444 hadc->Instance->CR |= ADC_CR_ADSTP;
mbed_official 376:cb4d9db17537 445 }
mbed_official 376:cb4d9db17537 446
mbed_official 376:cb4d9db17537 447 /* Disable ADC: Solution to recover from an unknown ADC state (for example, */
mbed_official 376:cb4d9db17537 448 /* in case of forbidden action on register bits) */
mbed_official 376:cb4d9db17537 449 /* Procedure to disable the ADC peripheral: wait for conversions */
mbed_official 376:cb4d9db17537 450 /* effectively stopped, then disable ADC */
mbed_official 376:cb4d9db17537 451 /* 1. Wait until ADSTART = 0 */
mbed_official 376:cb4d9db17537 452
mbed_official 376:cb4d9db17537 453 /* Get timeout */
mbed_official 376:cb4d9db17537 454 tickstart = HAL_GetTick();
mbed_official 376:cb4d9db17537 455
mbed_official 376:cb4d9db17537 456 while(HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADSTART))
mbed_official 376:cb4d9db17537 457 {
mbed_official 376:cb4d9db17537 458 /* Check for the Timeout */
mbed_official 376:cb4d9db17537 459 if(ADC_STOP_CONVERSION_TIMEOUT != HAL_MAX_DELAY)
mbed_official 376:cb4d9db17537 460 {
mbed_official 376:cb4d9db17537 461 if((HAL_GetTick() - tickstart ) > ADC_STOP_CONVERSION_TIMEOUT)
mbed_official 376:cb4d9db17537 462 {
mbed_official 376:cb4d9db17537 463 hadc->State= HAL_ADC_STATE_TIMEOUT;
mbed_official 376:cb4d9db17537 464
mbed_official 376:cb4d9db17537 465 /* Process unlocked */
mbed_official 376:cb4d9db17537 466 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 467
mbed_official 376:cb4d9db17537 468 return HAL_TIMEOUT;
mbed_official 376:cb4d9db17537 469 }
mbed_official 376:cb4d9db17537 470 }
mbed_official 376:cb4d9db17537 471 }
mbed_official 376:cb4d9db17537 472
mbed_official 376:cb4d9db17537 473 /* 2. Disable the ADC peripheral */
mbed_official 376:cb4d9db17537 474 __HAL_ADC_DISABLE(hadc);
mbed_official 376:cb4d9db17537 475
mbed_official 376:cb4d9db17537 476
mbed_official 376:cb4d9db17537 477 /* Reset ADC registers****************/
mbed_official 376:cb4d9db17537 478 /* Reset register IER */
mbed_official 376:cb4d9db17537 479 __HAL_ADC_DISABLE_IT(hadc, (ADC_IT_AWD | ADC_IT_OVR | ADC_IT_EOCAL | ADC_IT_EOS | \
mbed_official 376:cb4d9db17537 480 ADC_IT_EOC | ADC_IT_RDY | ADC_IT_EOSMP ));
mbed_official 376:cb4d9db17537 481
mbed_official 376:cb4d9db17537 482 /* Reset register ISR */
mbed_official 376:cb4d9db17537 483 __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_AWD | ADC_FLAG_EOCAL | ADC_FLAG_OVR | ADC_FLAG_EOS | \
mbed_official 376:cb4d9db17537 484 ADC_FLAG_EOC | ADC_FLAG_EOSMP | ADC_FLAG_RDY));
mbed_official 376:cb4d9db17537 485
mbed_official 376:cb4d9db17537 486 /* Reset register CR */
mbed_official 376:cb4d9db17537 487 /* Disable voltage regulator */
mbed_official 376:cb4d9db17537 488 /* Note: Regulator disable useful for power saving */
mbed_official 376:cb4d9db17537 489 /* Reset ADVREGEN bit */
mbed_official 376:cb4d9db17537 490 hadc->Instance->CR &= ~ADC_CR_ADVREGEN;
mbed_official 376:cb4d9db17537 491
mbed_official 376:cb4d9db17537 492 /* Bits ADC_CR_ADSTP, ADC_CR_ADSTART are in access mode "read-set": no direct reset applicable */
mbed_official 376:cb4d9db17537 493 /* No action */
mbed_official 376:cb4d9db17537 494
mbed_official 376:cb4d9db17537 495 /* Reset register CFGR1 */
mbed_official 376:cb4d9db17537 496 hadc->Instance->CFGR1 &= ~(ADC_CFGR1_AWDCH | ADC_CFGR1_AWDEN | ADC_CFGR1_AWDSGL | \
mbed_official 376:cb4d9db17537 497 ADC_CFGR1_DISCEN | ADC_CFGR1_AUTOFF | ADC_CFGR1_AUTDLY | \
mbed_official 376:cb4d9db17537 498 ADC_CFGR1_CONT | ADC_CFGR1_OVRMOD | ADC_CFGR1_EXTEN | \
mbed_official 376:cb4d9db17537 499 ADC_CFGR1_EXTSEL | ADC_CFGR1_ALIGN | ADC_CFGR1_RES | \
mbed_official 376:cb4d9db17537 500 ADC_CFGR1_SCANDIR| ADC_CFGR1_DMACFG | ADC_CFGR1_DMAEN);
mbed_official 376:cb4d9db17537 501
mbed_official 376:cb4d9db17537 502 /* Reset register CFGR2 */
mbed_official 376:cb4d9db17537 503 hadc->Instance->CFGR2 &= ~(ADC_CFGR2_TOVS | ADC_CFGR2_OVSS | ADC_CFGR2_OVSR | \
mbed_official 376:cb4d9db17537 504 ADC_CFGR2_OVSE | ADC_CFGR2_CKMODE );
mbed_official 376:cb4d9db17537 505
mbed_official 376:cb4d9db17537 506 /* Reset register SMPR */
mbed_official 376:cb4d9db17537 507 hadc->Instance->SMPR &= ~(ADC_SMPR_SMPR);
mbed_official 376:cb4d9db17537 508
mbed_official 376:cb4d9db17537 509 /* Reset register TR */
mbed_official 376:cb4d9db17537 510 hadc->Instance->TR &= ~(ADC_TR_LT | ADC_TR_HT);
mbed_official 376:cb4d9db17537 511
mbed_official 376:cb4d9db17537 512 /* Reset register CALFACT */
mbed_official 376:cb4d9db17537 513 hadc->Instance->CALFACT &= ~(ADC_CALFACT_CALFACT);
mbed_official 376:cb4d9db17537 514
mbed_official 376:cb4d9db17537 515 /* Reset register DR */
mbed_official 376:cb4d9db17537 516 /* bits in access mode read only, no direct reset applicable*/
mbed_official 376:cb4d9db17537 517
mbed_official 376:cb4d9db17537 518 /* Reset register CALFACT */
mbed_official 376:cb4d9db17537 519 hadc->Instance->CALFACT &= ~(ADC_CALFACT_CALFACT);
mbed_official 376:cb4d9db17537 520
mbed_official 376:cb4d9db17537 521
mbed_official 376:cb4d9db17537 522 /* DeInit the low level hardware */
mbed_official 376:cb4d9db17537 523 HAL_ADC_MspDeInit(hadc);
mbed_official 376:cb4d9db17537 524
mbed_official 376:cb4d9db17537 525 /* Set ADC error code to none */
mbed_official 376:cb4d9db17537 526 hadc->ErrorCode = HAL_ADC_ERROR_NONE;
mbed_official 376:cb4d9db17537 527
mbed_official 376:cb4d9db17537 528 /* Change ADC state */
mbed_official 376:cb4d9db17537 529 hadc->State = HAL_ADC_STATE_RESET;
mbed_official 376:cb4d9db17537 530
mbed_official 376:cb4d9db17537 531 /* Return function status */
mbed_official 376:cb4d9db17537 532 return HAL_OK;
mbed_official 376:cb4d9db17537 533 }
mbed_official 376:cb4d9db17537 534
mbed_official 376:cb4d9db17537 535 /**
mbed_official 376:cb4d9db17537 536 * @brief Initializes the ADC MSP.
mbed_official 376:cb4d9db17537 537 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 538 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 539 * @retval None
mbed_official 376:cb4d9db17537 540 */
mbed_official 376:cb4d9db17537 541 __weak void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 542 {
mbed_official 376:cb4d9db17537 543 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 376:cb4d9db17537 544 the HAL_ADC_MspInit could be implemented in the user file
mbed_official 376:cb4d9db17537 545 */
mbed_official 376:cb4d9db17537 546 }
mbed_official 376:cb4d9db17537 547
mbed_official 376:cb4d9db17537 548 /**
mbed_official 376:cb4d9db17537 549 * @brief DeInitializes the ADC MSP.
mbed_official 376:cb4d9db17537 550 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 551 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 552 * @retval None
mbed_official 376:cb4d9db17537 553 */
mbed_official 376:cb4d9db17537 554 __weak void HAL_ADC_MspDeInit(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 555 {
mbed_official 376:cb4d9db17537 556 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 376:cb4d9db17537 557 the HAL_ADC_MspDeInit could be implemented in the user file
mbed_official 376:cb4d9db17537 558 */
mbed_official 376:cb4d9db17537 559 }
mbed_official 376:cb4d9db17537 560
mbed_official 376:cb4d9db17537 561 /**
mbed_official 376:cb4d9db17537 562 * @}
mbed_official 376:cb4d9db17537 563 */
mbed_official 376:cb4d9db17537 564
mbed_official 376:cb4d9db17537 565 /** @defgroup ADC_Group2 I/O operation functions
mbed_official 376:cb4d9db17537 566 * @brief I/O operation functions
mbed_official 376:cb4d9db17537 567 *
mbed_official 376:cb4d9db17537 568 @verbatim
mbed_official 376:cb4d9db17537 569 ===============================================================================
mbed_official 376:cb4d9db17537 570 ##### IO operation functions #####
mbed_official 376:cb4d9db17537 571 ===============================================================================
mbed_official 376:cb4d9db17537 572 [..] This section provides functions allowing to:
mbed_official 376:cb4d9db17537 573 (+) Start conversion.
mbed_official 376:cb4d9db17537 574 (+) Stop conversion.
mbed_official 376:cb4d9db17537 575 (+) poll for conversion complete.
mbed_official 376:cb4d9db17537 576 (+) poll for conversion event.
mbed_official 376:cb4d9db17537 577 (+) Start conversion and enable interrupt.
mbed_official 376:cb4d9db17537 578 (+) Stop conversion and disable interrupt.
mbed_official 376:cb4d9db17537 579 (+) handle ADC interrupt request.
mbed_official 376:cb4d9db17537 580 (+) Start conversion of regular channel and enable DMA transfer.
mbed_official 376:cb4d9db17537 581 (+) Stop conversion of regular channel and disable DMA transfer.
mbed_official 376:cb4d9db17537 582 (+) Get result of regular channel conversion.
mbed_official 376:cb4d9db17537 583 (+) Handle ADC interrupt request.
mbed_official 376:cb4d9db17537 584
mbed_official 376:cb4d9db17537 585 @endverbatim
mbed_official 376:cb4d9db17537 586 * @{
mbed_official 376:cb4d9db17537 587 */
mbed_official 376:cb4d9db17537 588
mbed_official 376:cb4d9db17537 589
mbed_official 376:cb4d9db17537 590 /**
mbed_official 376:cb4d9db17537 591 * @brief Enables ADC and starts conversion of the regular channels.
mbed_official 376:cb4d9db17537 592 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 593 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 594 * @retval HAL status
mbed_official 376:cb4d9db17537 595 */
mbed_official 376:cb4d9db17537 596 HAL_StatusTypeDef HAL_ADC_Start(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 597 {
mbed_official 376:cb4d9db17537 598 HAL_StatusTypeDef tmpHALStatus = HAL_OK;
mbed_official 376:cb4d9db17537 599
mbed_official 376:cb4d9db17537 600 /* Check the parameters */
mbed_official 376:cb4d9db17537 601 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 376:cb4d9db17537 602
mbed_official 490:119543c9f674 603 /* Perform ADC enable and conversion start if no conversion is on going */
mbed_official 490:119543c9f674 604 if (ADC_IS_CONVERSION_ONGOING(hadc) == RESET)
mbed_official 490:119543c9f674 605 {
mbed_official 490:119543c9f674 606 /* Process locked */
mbed_official 490:119543c9f674 607 __HAL_LOCK(hadc);
mbed_official 490:119543c9f674 608
mbed_official 490:119543c9f674 609 /* Change ADC state */
mbed_official 490:119543c9f674 610 hadc->State = HAL_ADC_STATE_BUSY_REG;
mbed_official 490:119543c9f674 611
mbed_official 490:119543c9f674 612 /* Set ADC error code to none */
mbed_official 490:119543c9f674 613 hadc->ErrorCode = HAL_ADC_ERROR_NONE;
mbed_official 376:cb4d9db17537 614
mbed_official 490:119543c9f674 615 /* Enable the ADC peripheral */
mbed_official 490:119543c9f674 616 /* If low power mode AutoPowerOff is enabled, power-on/off phases are */
mbed_official 490:119543c9f674 617 /* performed automatically by hardware. */
mbed_official 490:119543c9f674 618 if (hadc->Init.LowPowerAutoPowerOff != ENABLE)
mbed_official 490:119543c9f674 619 {
mbed_official 490:119543c9f674 620 tmpHALStatus = ADC_Enable(hadc);
mbed_official 490:119543c9f674 621 }
mbed_official 490:119543c9f674 622
mbed_official 490:119543c9f674 623 /* Start conversion if ADC is effectively enabled */
mbed_official 490:119543c9f674 624 if (tmpHALStatus != HAL_ERROR)
mbed_official 490:119543c9f674 625 {
mbed_official 490:119543c9f674 626 /* ADC start conversion command */
mbed_official 490:119543c9f674 627 hadc->Instance->CR |= ADC_CR_ADSTART;
mbed_official 490:119543c9f674 628 }
mbed_official 490:119543c9f674 629
mbed_official 490:119543c9f674 630 /* Process unlocked */
mbed_official 490:119543c9f674 631 __HAL_UNLOCK(hadc);
mbed_official 490:119543c9f674 632 }
mbed_official 490:119543c9f674 633 else
mbed_official 376:cb4d9db17537 634 {
mbed_official 490:119543c9f674 635 tmpHALStatus = HAL_BUSY;
mbed_official 376:cb4d9db17537 636 }
mbed_official 376:cb4d9db17537 637
mbed_official 376:cb4d9db17537 638 /* Return function status */
mbed_official 490:119543c9f674 639 return tmpHALStatus;
mbed_official 376:cb4d9db17537 640 }
mbed_official 376:cb4d9db17537 641
mbed_official 376:cb4d9db17537 642 /**
mbed_official 376:cb4d9db17537 643 * @brief Stop ADC conversion of regular channels, disable ADC peripheral.
mbed_official 376:cb4d9db17537 644 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 645 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 646 * @retval None
mbed_official 376:cb4d9db17537 647 */
mbed_official 376:cb4d9db17537 648 HAL_StatusTypeDef HAL_ADC_Stop(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 649 {
mbed_official 376:cb4d9db17537 650 HAL_StatusTypeDef tmpHALStatus = HAL_OK;
mbed_official 376:cb4d9db17537 651
mbed_official 376:cb4d9db17537 652 /* Process locked */
mbed_official 376:cb4d9db17537 653 __HAL_LOCK(hadc);
mbed_official 376:cb4d9db17537 654
mbed_official 376:cb4d9db17537 655 /* 1. Stop potential conversion ongoing (regular conversion) */
mbed_official 490:119543c9f674 656 tmpHALStatus = ADC_ConversionStop(hadc, ADC_REGULAR_GROUP);
mbed_official 376:cb4d9db17537 657
mbed_official 376:cb4d9db17537 658 /* 2. Disable ADC peripheral if conversions are effectively stopped */
mbed_official 376:cb4d9db17537 659 if (tmpHALStatus != HAL_ERROR)
mbed_official 376:cb4d9db17537 660 {
mbed_official 376:cb4d9db17537 661 /* Disable the ADC peripheral */
mbed_official 490:119543c9f674 662 tmpHALStatus = ADC_Disable(hadc);
mbed_official 376:cb4d9db17537 663
mbed_official 376:cb4d9db17537 664 /* Check if ADC is effectively disabled */
mbed_official 490:119543c9f674 665 if ((hadc->State != HAL_ADC_STATE_ERROR) && (tmpHALStatus != HAL_ERROR))
mbed_official 376:cb4d9db17537 666 {
mbed_official 376:cb4d9db17537 667 /* Change ADC state */
mbed_official 376:cb4d9db17537 668 hadc->State = HAL_ADC_STATE_READY;
mbed_official 376:cb4d9db17537 669 }
mbed_official 376:cb4d9db17537 670 else
mbed_official 376:cb4d9db17537 671 {
mbed_official 376:cb4d9db17537 672 return HAL_ERROR;
mbed_official 376:cb4d9db17537 673 }
mbed_official 376:cb4d9db17537 674 }
mbed_official 376:cb4d9db17537 675 else
mbed_official 376:cb4d9db17537 676 {
mbed_official 376:cb4d9db17537 677 return HAL_ERROR;
mbed_official 376:cb4d9db17537 678 }
mbed_official 376:cb4d9db17537 679
mbed_official 376:cb4d9db17537 680 /* Process unlocked */
mbed_official 376:cb4d9db17537 681 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 682
mbed_official 376:cb4d9db17537 683 /* Return function status */
mbed_official 376:cb4d9db17537 684 return HAL_OK;
mbed_official 376:cb4d9db17537 685 }
mbed_official 376:cb4d9db17537 686
mbed_official 376:cb4d9db17537 687 /**
mbed_official 490:119543c9f674 688 * @brief Wait for regular group conversion to be completed.
mbed_official 490:119543c9f674 689 * @note ADC conversion flags EOS (end of sequence) and EOC (end of
mbed_official 490:119543c9f674 690 * conversion) are cleared by this function, with an exception:
mbed_official 490:119543c9f674 691 * if low power feature "LowPowerAutoWait" is enabled, flags are
mbed_official 490:119543c9f674 692 * not cleared to not interfere with this feature until data register
mbed_official 490:119543c9f674 693 * is read using function HAL_ADC_GetValue().
mbed_official 490:119543c9f674 694 * @note This function cannot be used in a particular setup: ADC configured
mbed_official 490:119543c9f674 695 * in DMA mode and polling for end of each conversion (ADC init
mbed_official 490:119543c9f674 696 * parameter "EOCSelection" set to ADC_EOC_SINGLE_CONV).
mbed_official 490:119543c9f674 697 * In this case, DMA resets the flag EOC and polling cannot be
mbed_official 490:119543c9f674 698 * performed on each conversion. Nevertheless, polling can still
mbed_official 490:119543c9f674 699 * be performed on the complete sequence.
mbed_official 490:119543c9f674 700 * @param hadc: ADC handle
mbed_official 490:119543c9f674 701 * @param Timeout: Timeout value in millisecond.
mbed_official 376:cb4d9db17537 702 * @retval HAL status
mbed_official 376:cb4d9db17537 703 */
mbed_official 376:cb4d9db17537 704 HAL_StatusTypeDef HAL_ADC_PollForConversion(ADC_HandleTypeDef* hadc, uint32_t Timeout)
mbed_official 376:cb4d9db17537 705 {
mbed_official 376:cb4d9db17537 706 uint32_t tickstart = 0;
mbed_official 376:cb4d9db17537 707 uint32_t tmp_Flag_EOC;
mbed_official 376:cb4d9db17537 708
mbed_official 376:cb4d9db17537 709 /* Check the parameters */
mbed_official 376:cb4d9db17537 710 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 490:119543c9f674 711
mbed_official 490:119543c9f674 712 /* If end of conversion selected to end of sequence */
mbed_official 490:119543c9f674 713 if (hadc->Init.EOCSelection == ADC_EOC_SEQ_CONV)
mbed_official 376:cb4d9db17537 714 {
mbed_official 376:cb4d9db17537 715 tmp_Flag_EOC = ADC_FLAG_EOS;
mbed_official 376:cb4d9db17537 716 }
mbed_official 490:119543c9f674 717 /* If end of conversion selected to end of each conversion */
mbed_official 490:119543c9f674 718 else /* ADC_EOC_SINGLE_CONV */
mbed_official 376:cb4d9db17537 719 {
mbed_official 490:119543c9f674 720 /* Verification that ADC configuration is compliant with polling for */
mbed_official 490:119543c9f674 721 /* each conversion: */
mbed_official 490:119543c9f674 722 /* Particular case is ADC configured in DMA mode and ADC sequencer with */
mbed_official 490:119543c9f674 723 /* several ranks and polling for end of each conversion. */
mbed_official 490:119543c9f674 724 /* For code simplicity sake, this particular case is generalized to */
mbed_official 490:119543c9f674 725 /* ADC configured in DMA mode and and polling for end of each conversion. */
mbed_official 490:119543c9f674 726 if (HAL_IS_BIT_SET(hadc->Instance->CFGR1, ADC_CFGR1_DMAEN))
mbed_official 490:119543c9f674 727 {
mbed_official 490:119543c9f674 728 /* Update ADC state machine to error */
mbed_official 490:119543c9f674 729 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 490:119543c9f674 730
mbed_official 490:119543c9f674 731 /* Process unlocked */
mbed_official 490:119543c9f674 732 __HAL_UNLOCK(hadc);
mbed_official 490:119543c9f674 733
mbed_official 490:119543c9f674 734 return HAL_ERROR;
mbed_official 490:119543c9f674 735 }
mbed_official 490:119543c9f674 736 else
mbed_official 490:119543c9f674 737 {
mbed_official 490:119543c9f674 738 tmp_Flag_EOC = (ADC_FLAG_EOC | ADC_FLAG_EOS);
mbed_official 490:119543c9f674 739 }
mbed_official 376:cb4d9db17537 740 }
mbed_official 490:119543c9f674 741
mbed_official 490:119543c9f674 742 /* Get tick */
mbed_official 376:cb4d9db17537 743 tickstart = HAL_GetTick();
mbed_official 490:119543c9f674 744
mbed_official 376:cb4d9db17537 745 /* Wait until End of Conversion flag is raised */
mbed_official 376:cb4d9db17537 746 while(HAL_IS_BIT_CLR(hadc->Instance->ISR, tmp_Flag_EOC))
mbed_official 376:cb4d9db17537 747 {
mbed_official 490:119543c9f674 748 /* Check if timeout is disabled (set to infinite wait) */
mbed_official 376:cb4d9db17537 749 if(Timeout != HAL_MAX_DELAY)
mbed_official 376:cb4d9db17537 750 {
mbed_official 490:119543c9f674 751 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
mbed_official 376:cb4d9db17537 752 {
mbed_official 490:119543c9f674 753 /* Update ADC state machine to timeout */
mbed_official 490:119543c9f674 754 hadc->State = HAL_ADC_STATE_TIMEOUT;
mbed_official 376:cb4d9db17537 755
mbed_official 376:cb4d9db17537 756 /* Process unlocked */
mbed_official 376:cb4d9db17537 757 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 758
mbed_official 376:cb4d9db17537 759 return HAL_TIMEOUT;
mbed_official 376:cb4d9db17537 760 }
mbed_official 376:cb4d9db17537 761 }
mbed_official 376:cb4d9db17537 762 }
mbed_official 376:cb4d9db17537 763
mbed_official 376:cb4d9db17537 764 /* Clear end of conversion flag of regular group if low power feature */
mbed_official 376:cb4d9db17537 765 /* "LowPowerAutoWait " is disabled, to not interfere with this feature */
mbed_official 376:cb4d9db17537 766 /* until data register is read using function HAL_ADC_GetValue(). */
mbed_official 376:cb4d9db17537 767 if (hadc->Init.LowPowerAutoWait == DISABLE)
mbed_official 376:cb4d9db17537 768 {
mbed_official 376:cb4d9db17537 769 /* Clear regular group conversion flag */
mbed_official 376:cb4d9db17537 770 __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS));
mbed_official 376:cb4d9db17537 771 }
mbed_official 490:119543c9f674 772
mbed_official 490:119543c9f674 773 /* Update state machine on conversion status if not in error state */
mbed_official 490:119543c9f674 774 if(hadc->State != HAL_ADC_STATE_ERROR)
mbed_official 490:119543c9f674 775 {
mbed_official 490:119543c9f674 776 /* Change ADC state */
mbed_official 490:119543c9f674 777 hadc->State = HAL_ADC_STATE_EOC;
mbed_official 490:119543c9f674 778 }
mbed_official 376:cb4d9db17537 779
mbed_official 376:cb4d9db17537 780 /* Return ADC state */
mbed_official 376:cb4d9db17537 781 return HAL_OK;
mbed_official 376:cb4d9db17537 782 }
mbed_official 376:cb4d9db17537 783
mbed_official 376:cb4d9db17537 784 /**
mbed_official 376:cb4d9db17537 785 * @brief Poll for conversion event.
mbed_official 376:cb4d9db17537 786 * @param hadc: ADC handle.
mbed_official 376:cb4d9db17537 787 * @param EventType: the ADC event type.
mbed_official 376:cb4d9db17537 788 * This parameter can be one of the following values:
mbed_official 490:119543c9f674 789 * @arg ADC_AWD_EVENT: ADC Analog watchdog event.
mbed_official 490:119543c9f674 790 * @arg ADC_OVR_EVENT: ADC Overrun event.
mbed_official 376:cb4d9db17537 791 * @param Timeout: Timeout value in millisecond.
mbed_official 376:cb4d9db17537 792 * @retval HAL status
mbed_official 376:cb4d9db17537 793 */
mbed_official 376:cb4d9db17537 794 HAL_StatusTypeDef HAL_ADC_PollForEvent(ADC_HandleTypeDef* hadc, uint32_t EventType, uint32_t Timeout)
mbed_official 376:cb4d9db17537 795 {
mbed_official 376:cb4d9db17537 796 uint32_t tickstart = 0;
mbed_official 376:cb4d9db17537 797
mbed_official 376:cb4d9db17537 798 /* Check the parameters */
mbed_official 376:cb4d9db17537 799 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 376:cb4d9db17537 800 assert_param(IS_ADC_EVENT_TYPE(EventType));
mbed_official 376:cb4d9db17537 801
mbed_official 376:cb4d9db17537 802 /* Get timeout */
mbed_official 376:cb4d9db17537 803 tickstart = HAL_GetTick();
mbed_official 376:cb4d9db17537 804
mbed_official 376:cb4d9db17537 805 /* Check selected event flag */
mbed_official 376:cb4d9db17537 806 while(!(__HAL_ADC_GET_FLAG(hadc,EventType)))
mbed_official 376:cb4d9db17537 807 {
mbed_official 376:cb4d9db17537 808 /* Check if timeout is disabled (set to infinite wait) */
mbed_official 376:cb4d9db17537 809 if(Timeout != HAL_MAX_DELAY)
mbed_official 376:cb4d9db17537 810 {
mbed_official 376:cb4d9db17537 811 if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
mbed_official 376:cb4d9db17537 812 {
mbed_official 376:cb4d9db17537 813 /* Update ADC state machine to timeout */
mbed_official 376:cb4d9db17537 814 hadc->State = HAL_ADC_STATE_TIMEOUT;
mbed_official 376:cb4d9db17537 815
mbed_official 376:cb4d9db17537 816 /* Process unlocked */
mbed_official 376:cb4d9db17537 817 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 818
mbed_official 376:cb4d9db17537 819 return HAL_TIMEOUT;
mbed_official 376:cb4d9db17537 820 }
mbed_official 376:cb4d9db17537 821 }
mbed_official 376:cb4d9db17537 822 }
mbed_official 376:cb4d9db17537 823
mbed_official 376:cb4d9db17537 824 switch(EventType)
mbed_official 376:cb4d9db17537 825 {
mbed_official 376:cb4d9db17537 826 /* Check analog watchdog flag */
mbed_official 490:119543c9f674 827 case ADC_AWD_EVENT:
mbed_official 376:cb4d9db17537 828 /* Change ADC state */
mbed_official 376:cb4d9db17537 829 hadc->State = HAL_ADC_STATE_AWD;
mbed_official 376:cb4d9db17537 830
mbed_official 376:cb4d9db17537 831 /* Clear ADC analog watchdog flag */
mbed_official 376:cb4d9db17537 832 __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD);
mbed_official 376:cb4d9db17537 833 break;
mbed_official 376:cb4d9db17537 834
mbed_official 490:119543c9f674 835 /* Case ADC_OVR_EVENT */
mbed_official 376:cb4d9db17537 836 default:
mbed_official 376:cb4d9db17537 837 /* Change ADC state */
mbed_official 376:cb4d9db17537 838 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 839
mbed_official 376:cb4d9db17537 840 /* Clear ADC Overrun flag */
mbed_official 376:cb4d9db17537 841 __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_OVR);
mbed_official 376:cb4d9db17537 842 break;
mbed_official 376:cb4d9db17537 843 }
mbed_official 376:cb4d9db17537 844
mbed_official 376:cb4d9db17537 845 /* Return ADC state */
mbed_official 376:cb4d9db17537 846 return HAL_OK;
mbed_official 376:cb4d9db17537 847 }
mbed_official 376:cb4d9db17537 848
mbed_official 376:cb4d9db17537 849 /**
mbed_official 376:cb4d9db17537 850 * @brief Enables the interrupt and starts ADC conversion of regular channels.
mbed_official 376:cb4d9db17537 851 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 852 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 853 * @retval HAL status.
mbed_official 376:cb4d9db17537 854 */
mbed_official 376:cb4d9db17537 855 HAL_StatusTypeDef HAL_ADC_Start_IT(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 856 {
mbed_official 376:cb4d9db17537 857 HAL_StatusTypeDef tmpHALStatus = HAL_OK;
mbed_official 376:cb4d9db17537 858
mbed_official 376:cb4d9db17537 859 /* Check the parameters */
mbed_official 376:cb4d9db17537 860 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 376:cb4d9db17537 861
mbed_official 490:119543c9f674 862 /* Perform ADC enable and conversion start if no conversion is on going */
mbed_official 490:119543c9f674 863 if (ADC_IS_CONVERSION_ONGOING(hadc) == RESET)
mbed_official 376:cb4d9db17537 864 {
mbed_official 490:119543c9f674 865 /* Process locked */
mbed_official 490:119543c9f674 866 __HAL_LOCK(hadc);
mbed_official 490:119543c9f674 867
mbed_official 490:119543c9f674 868 /* State machine update: Change ADC state */
mbed_official 490:119543c9f674 869 hadc->State = HAL_ADC_STATE_BUSY_REG;
mbed_official 376:cb4d9db17537 870
mbed_official 490:119543c9f674 871 /* Set ADC error code to none */
mbed_official 490:119543c9f674 872 hadc->ErrorCode = HAL_ADC_ERROR_NONE;
mbed_official 490:119543c9f674 873
mbed_official 490:119543c9f674 874 /* Enable the ADC peripheral */
mbed_official 490:119543c9f674 875 /* If low power mode AutoPowerOff is enabled, power-on/off phases are */
mbed_official 490:119543c9f674 876 /* performed automatically by hardware. */
mbed_official 490:119543c9f674 877 if (hadc->Init.LowPowerAutoPowerOff != ENABLE)
mbed_official 376:cb4d9db17537 878 {
mbed_official 490:119543c9f674 879 tmpHALStatus = ADC_Enable(hadc);
mbed_official 376:cb4d9db17537 880 }
mbed_official 376:cb4d9db17537 881
mbed_official 490:119543c9f674 882 /* Start conversion if ADC is effectively enabled */
mbed_official 490:119543c9f674 883 if (tmpHALStatus != HAL_ERROR)
mbed_official 490:119543c9f674 884 {
mbed_official 490:119543c9f674 885 /* Enable ADC overrun interrupt */
mbed_official 490:119543c9f674 886 __HAL_ADC_ENABLE_IT(hadc, ADC_IT_OVR);
mbed_official 490:119543c9f674 887
mbed_official 490:119543c9f674 888 /* Enable ADC end of conversion interrupt */
mbed_official 490:119543c9f674 889 switch(hadc->Init.EOCSelection)
mbed_official 490:119543c9f674 890 {
mbed_official 490:119543c9f674 891 case ADC_EOC_SEQ_CONV:
mbed_official 490:119543c9f674 892 __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC);
mbed_official 490:119543c9f674 893 __HAL_ADC_ENABLE_IT(hadc, ADC_IT_EOS);
mbed_official 490:119543c9f674 894 break;
mbed_official 490:119543c9f674 895 /* case ADC_EOC_SINGLE_CONV */
mbed_official 490:119543c9f674 896 default:
mbed_official 490:119543c9f674 897 __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOS);
mbed_official 490:119543c9f674 898 __HAL_ADC_ENABLE_IT(hadc, ADC_IT_EOC);
mbed_official 490:119543c9f674 899 break;
mbed_official 490:119543c9f674 900 }
mbed_official 490:119543c9f674 901
mbed_official 490:119543c9f674 902 /* ADC start conversion command */
mbed_official 490:119543c9f674 903 hadc->Instance->CR |= ADC_CR_ADSTART;
mbed_official 490:119543c9f674 904 }
mbed_official 490:119543c9f674 905
mbed_official 490:119543c9f674 906 else
mbed_official 490:119543c9f674 907 {
mbed_official 490:119543c9f674 908 tmpHALStatus = HAL_ERROR;
mbed_official 490:119543c9f674 909 }
mbed_official 490:119543c9f674 910
mbed_official 490:119543c9f674 911 /* Process unlocked */
mbed_official 490:119543c9f674 912 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 913 }
mbed_official 376:cb4d9db17537 914 else
mbed_official 376:cb4d9db17537 915 {
mbed_official 490:119543c9f674 916 tmpHALStatus = HAL_BUSY;
mbed_official 376:cb4d9db17537 917 }
mbed_official 490:119543c9f674 918
mbed_official 376:cb4d9db17537 919 /* Return function status */
mbed_official 490:119543c9f674 920 return tmpHALStatus;
mbed_official 376:cb4d9db17537 921 }
mbed_official 376:cb4d9db17537 922
mbed_official 376:cb4d9db17537 923 /**
mbed_official 376:cb4d9db17537 924 * @brief Stop ADC conversion of regular channels, disable interruptions
mbed_official 376:cb4d9db17537 925 * EOC/EOS/OVR, disable ADC peripheral.
mbed_official 376:cb4d9db17537 926 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 927 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 928 * @retval None
mbed_official 376:cb4d9db17537 929 */
mbed_official 376:cb4d9db17537 930 HAL_StatusTypeDef HAL_ADC_Stop_IT(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 931 {
mbed_official 376:cb4d9db17537 932 HAL_StatusTypeDef tmpHALStatus = HAL_OK;
mbed_official 376:cb4d9db17537 933
mbed_official 376:cb4d9db17537 934 /* Process locked */
mbed_official 376:cb4d9db17537 935 __HAL_LOCK(hadc);
mbed_official 376:cb4d9db17537 936
mbed_official 376:cb4d9db17537 937 /* 1. Stop potential conversion ongoing (regular conversion) */
mbed_official 490:119543c9f674 938 tmpHALStatus = ADC_ConversionStop(hadc, ADC_REGULAR_GROUP);
mbed_official 376:cb4d9db17537 939
mbed_official 376:cb4d9db17537 940 /* 2. Disable ADC peripheral if conversions are effectively stopped */
mbed_official 376:cb4d9db17537 941 if (tmpHALStatus != HAL_ERROR)
mbed_official 376:cb4d9db17537 942 {
mbed_official 376:cb4d9db17537 943 /* Disable ADC interrupts */
mbed_official 376:cb4d9db17537 944 __HAL_ADC_DISABLE_IT(hadc, (ADC_IT_EOC | ADC_IT_EOS | ADC_IT_OVR));
mbed_official 376:cb4d9db17537 945
mbed_official 376:cb4d9db17537 946 /* Disable the ADC peripheral */
mbed_official 490:119543c9f674 947 tmpHALStatus = ADC_Disable(hadc);
mbed_official 376:cb4d9db17537 948
mbed_official 376:cb4d9db17537 949 /* Check if ADC is effectively disabled */
mbed_official 490:119543c9f674 950 if ((hadc->State != HAL_ADC_STATE_ERROR) && (tmpHALStatus != HAL_ERROR))
mbed_official 376:cb4d9db17537 951 {
mbed_official 376:cb4d9db17537 952 /* Change ADC state */
mbed_official 376:cb4d9db17537 953 hadc->State = HAL_ADC_STATE_READY;
mbed_official 376:cb4d9db17537 954 }
mbed_official 376:cb4d9db17537 955 else
mbed_official 376:cb4d9db17537 956 {
mbed_official 376:cb4d9db17537 957 return HAL_ERROR;
mbed_official 376:cb4d9db17537 958 }
mbed_official 376:cb4d9db17537 959 }
mbed_official 376:cb4d9db17537 960 else
mbed_official 376:cb4d9db17537 961 {
mbed_official 376:cb4d9db17537 962 return HAL_ERROR;
mbed_official 376:cb4d9db17537 963 }
mbed_official 376:cb4d9db17537 964
mbed_official 376:cb4d9db17537 965
mbed_official 376:cb4d9db17537 966 /* Process unlocked */
mbed_official 376:cb4d9db17537 967 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 968
mbed_official 376:cb4d9db17537 969 /* Return function status */
mbed_official 376:cb4d9db17537 970 return HAL_OK;
mbed_official 376:cb4d9db17537 971 }
mbed_official 376:cb4d9db17537 972
mbed_official 376:cb4d9db17537 973 /**
mbed_official 376:cb4d9db17537 974 * @brief Handles ADC interrupt request
mbed_official 376:cb4d9db17537 975 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 976 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 977 * @retval None
mbed_official 376:cb4d9db17537 978 */
mbed_official 376:cb4d9db17537 979 void HAL_ADC_IRQHandler(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 980 {
mbed_official 376:cb4d9db17537 981 /* Check the parameters */
mbed_official 376:cb4d9db17537 982 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 376:cb4d9db17537 983 assert_param(IS_ADC_EOC_SELECTION(hadc->Init.EOCSelection));
mbed_official 376:cb4d9db17537 984
mbed_official 376:cb4d9db17537 985
mbed_official 376:cb4d9db17537 986 /* Check End of Conversion flag for regular channels */
mbed_official 376:cb4d9db17537 987 if( (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOC) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_EOC)) || \
mbed_official 376:cb4d9db17537 988 (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOS) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_EOS)) )
mbed_official 376:cb4d9db17537 989 {
mbed_official 376:cb4d9db17537 990 /* Change ADC state */
mbed_official 376:cb4d9db17537 991 hadc->State = HAL_ADC_STATE_EOC;
mbed_official 376:cb4d9db17537 992
mbed_official 376:cb4d9db17537 993
mbed_official 376:cb4d9db17537 994 /* Disable interruption if no further conversion upcoming by continuous mode or external trigger */
mbed_official 376:cb4d9db17537 995 if((hadc->Init.ContinuousConvMode == DISABLE) && \
mbed_official 490:119543c9f674 996 (hadc->Init.ExternalTrigConvEdge == ADC_EXTERNALTRIGCONVEDGE_NONE)
mbed_official 376:cb4d9db17537 997 )
mbed_official 376:cb4d9db17537 998 {
mbed_official 376:cb4d9db17537 999 /* Allowed to modify bits ADC_IT_EOC/ADC_IT_EOS only if bit ADSTART==0 (no conversion on going) */
mbed_official 376:cb4d9db17537 1000 if (HAL_IS_BIT_CLR(hadc->Instance->CR, ADC_CR_ADSTART))
mbed_official 376:cb4d9db17537 1001 {
mbed_official 376:cb4d9db17537 1002 /* Cases of interruption after each conversion or after each sequence */
mbed_official 376:cb4d9db17537 1003 /* If interruption after each sequence */
mbed_official 490:119543c9f674 1004 if (hadc->Init.EOCSelection == ADC_EOC_SEQ_CONV)
mbed_official 376:cb4d9db17537 1005 {
mbed_official 490:119543c9f674 1006 /* Allowed to modify bits ADC_IT_EOC/ADC_IT_EOS/ADC_IT_OVR only if bit*/
mbed_official 490:119543c9f674 1007 /* ADSTART==0 (no conversion on going) */
mbed_official 490:119543c9f674 1008 if (ADC_IS_CONVERSION_ONGOING(hadc) == RESET)
mbed_official 376:cb4d9db17537 1009 {
mbed_official 490:119543c9f674 1010 /* If End of Sequence is reached, disable interrupts */
mbed_official 490:119543c9f674 1011 if( __HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOS) )
mbed_official 490:119543c9f674 1012 {
mbed_official 490:119543c9f674 1013 /* DISABLE ADC end of sequence conversion interrupt */
mbed_official 490:119543c9f674 1014 /* DISABLE ADC overrun interrupt */
mbed_official 490:119543c9f674 1015 __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC | ADC_IT_EOS | ADC_IT_OVR);
mbed_official 490:119543c9f674 1016 }
mbed_official 490:119543c9f674 1017 }
mbed_official 490:119543c9f674 1018 else
mbed_official 490:119543c9f674 1019 {
mbed_official 490:119543c9f674 1020 /* Change ADC state to error state */
mbed_official 490:119543c9f674 1021 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 490:119543c9f674 1022 /* Set ADC error code to ADC IP internal error */
mbed_official 490:119543c9f674 1023 hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
mbed_official 376:cb4d9db17537 1024 }
mbed_official 376:cb4d9db17537 1025 }
mbed_official 376:cb4d9db17537 1026 /* If interruption after each conversion */
mbed_official 376:cb4d9db17537 1027 else
mbed_official 376:cb4d9db17537 1028 {
mbed_official 376:cb4d9db17537 1029 /* DISABLE ADC end of single conversion interrupt */
mbed_official 376:cb4d9db17537 1030 /* DISABLE ADC overrun interrupt */
mbed_official 376:cb4d9db17537 1031 __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC | ADC_IT_OVR);
mbed_official 376:cb4d9db17537 1032 }
mbed_official 376:cb4d9db17537 1033 }
mbed_official 376:cb4d9db17537 1034 else
mbed_official 376:cb4d9db17537 1035 {
mbed_official 376:cb4d9db17537 1036 /* Change ADC state to error state */
mbed_official 376:cb4d9db17537 1037 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 1038 }
mbed_official 376:cb4d9db17537 1039 }
mbed_official 376:cb4d9db17537 1040
mbed_official 376:cb4d9db17537 1041 /* Conversion complete callback */
mbed_official 376:cb4d9db17537 1042 /* Note: into callback, to determine if callback has been triggered from EOC or EOS, */
mbed_official 376:cb4d9db17537 1043 /* it is possible to use: if( __HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOS)) */
mbed_official 376:cb4d9db17537 1044 HAL_ADC_ConvCpltCallback(hadc);
mbed_official 376:cb4d9db17537 1045
mbed_official 376:cb4d9db17537 1046 /* Clear regular channels conversion flag */
mbed_official 376:cb4d9db17537 1047 if (hadc->Init.LowPowerAutoWait != ENABLE)
mbed_official 376:cb4d9db17537 1048 {
mbed_official 376:cb4d9db17537 1049 __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS) );
mbed_official 376:cb4d9db17537 1050 }
mbed_official 376:cb4d9db17537 1051 }
mbed_official 376:cb4d9db17537 1052
mbed_official 376:cb4d9db17537 1053
mbed_official 376:cb4d9db17537 1054 /* Check Analog watchdog flags */
mbed_official 376:cb4d9db17537 1055 if( (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_AWD) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_AWD)))
mbed_official 376:cb4d9db17537 1056 {
mbed_official 376:cb4d9db17537 1057 /* Change ADC state */
mbed_official 376:cb4d9db17537 1058 hadc->State = HAL_ADC_STATE_AWD;
mbed_official 376:cb4d9db17537 1059
mbed_official 376:cb4d9db17537 1060 /* Level out of window callback */
mbed_official 376:cb4d9db17537 1061 HAL_ADC_LevelOutOfWindowCallback(hadc);
mbed_official 376:cb4d9db17537 1062
mbed_official 376:cb4d9db17537 1063 /* Clear ADC Analog watchdog flag */
mbed_official 376:cb4d9db17537 1064 __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD);
mbed_official 376:cb4d9db17537 1065 }
mbed_official 376:cb4d9db17537 1066
mbed_official 376:cb4d9db17537 1067 /* Check Overrun flag */
mbed_official 376:cb4d9db17537 1068 if(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_OVR) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_OVR))
mbed_official 376:cb4d9db17537 1069 {
mbed_official 376:cb4d9db17537 1070 /* Change ADC state to overrun state */
mbed_official 376:cb4d9db17537 1071 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 1072
mbed_official 376:cb4d9db17537 1073 /* Set ADC error code to overrun */
mbed_official 376:cb4d9db17537 1074 hadc->ErrorCode |= HAL_ADC_ERROR_OVR;
mbed_official 376:cb4d9db17537 1075
mbed_official 376:cb4d9db17537 1076 /* Clear the Overrun flag */
mbed_official 376:cb4d9db17537 1077 __HAL_ADC_CLEAR_FLAG(hadc,ADC_FLAG_OVR);
mbed_official 376:cb4d9db17537 1078
mbed_official 376:cb4d9db17537 1079 /* Error callback */
mbed_official 376:cb4d9db17537 1080 HAL_ADC_ErrorCallback(hadc);
mbed_official 376:cb4d9db17537 1081 }
mbed_official 376:cb4d9db17537 1082 }
mbed_official 376:cb4d9db17537 1083
mbed_official 376:cb4d9db17537 1084 /**
mbed_official 376:cb4d9db17537 1085 * @brief Enables ADC DMA request after last transfer (Single-ADC mode) and enables ADC peripheral
mbed_official 376:cb4d9db17537 1086 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1087 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1088 * @param pData: The destination Buffer address.
mbed_official 376:cb4d9db17537 1089 * @param Length: The length of data to be transferred from ADC peripheral to memory.
mbed_official 376:cb4d9db17537 1090 * @retval None
mbed_official 376:cb4d9db17537 1091 */
mbed_official 376:cb4d9db17537 1092 HAL_StatusTypeDef HAL_ADC_Start_DMA(ADC_HandleTypeDef* hadc, uint32_t* pData, uint32_t Length)
mbed_official 376:cb4d9db17537 1093 {
mbed_official 376:cb4d9db17537 1094 HAL_StatusTypeDef tmpHALStatus = HAL_OK;
mbed_official 376:cb4d9db17537 1095
mbed_official 376:cb4d9db17537 1096 /* Check the parameters */
mbed_official 376:cb4d9db17537 1097 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 376:cb4d9db17537 1098
mbed_official 490:119543c9f674 1099 /* Perform ADC enable and conversion start if no conversion is on going */
mbed_official 490:119543c9f674 1100 if (ADC_IS_CONVERSION_ONGOING(hadc) == RESET)
mbed_official 490:119543c9f674 1101 {
mbed_official 490:119543c9f674 1102 /* Process locked */
mbed_official 490:119543c9f674 1103 __HAL_LOCK(hadc);
mbed_official 490:119543c9f674 1104
mbed_official 490:119543c9f674 1105 /* Change ADC state */
mbed_official 490:119543c9f674 1106 hadc->State = HAL_ADC_STATE_BUSY_REG;
mbed_official 490:119543c9f674 1107
mbed_official 490:119543c9f674 1108 /* Set ADC error code to none */
mbed_official 490:119543c9f674 1109 hadc->ErrorCode = HAL_ADC_ERROR_NONE;
mbed_official 376:cb4d9db17537 1110
mbed_official 490:119543c9f674 1111 /* Enable the ADC peripheral */
mbed_official 490:119543c9f674 1112 /* If low power mode AutoPowerOff is enabled, power-on/off phases are */
mbed_official 490:119543c9f674 1113 /* performed automatically by hardware. */
mbed_official 490:119543c9f674 1114 if (hadc->Init.LowPowerAutoPowerOff != ENABLE)
mbed_official 490:119543c9f674 1115 {
mbed_official 490:119543c9f674 1116 tmpHALStatus = ADC_Enable(hadc);
mbed_official 490:119543c9f674 1117 }
mbed_official 376:cb4d9db17537 1118
mbed_official 490:119543c9f674 1119 /* Start conversion if ADC is effectively enabled */
mbed_official 490:119543c9f674 1120 if (tmpHALStatus != HAL_ERROR)
mbed_official 490:119543c9f674 1121 {
mbed_official 490:119543c9f674 1122 /* Enable ADC DMA mode */
mbed_official 490:119543c9f674 1123 hadc->Instance->CFGR1 |= ADC_CFGR1_DMAEN;
mbed_official 490:119543c9f674 1124
mbed_official 490:119543c9f674 1125 /* Set the DMA transfer complete callback */
mbed_official 490:119543c9f674 1126 hadc->DMA_Handle->XferCpltCallback = ADC_DMAConvCplt;
mbed_official 490:119543c9f674 1127
mbed_official 490:119543c9f674 1128 /* Set the DMA half transfer complete callback */
mbed_official 490:119543c9f674 1129 hadc->DMA_Handle->XferHalfCpltCallback = ADC_DMAHalfConvCplt;
mbed_official 490:119543c9f674 1130
mbed_official 490:119543c9f674 1131 /* Set the DMA error callback */
mbed_official 490:119543c9f674 1132 hadc->DMA_Handle->XferErrorCallback = ADC_DMAError;
mbed_official 490:119543c9f674 1133
mbed_official 490:119543c9f674 1134 /* Manage ADC and DMA start: ADC overrun interruption, DMA start,
mbed_official 490:119543c9f674 1135 ADC start (in case of SW start) */
mbed_official 490:119543c9f674 1136
mbed_official 490:119543c9f674 1137 /* Enable ADC overrun interrupt */
mbed_official 490:119543c9f674 1138 __HAL_ADC_ENABLE_IT(hadc, ADC_IT_OVR);
mbed_official 490:119543c9f674 1139
mbed_official 490:119543c9f674 1140 /* Enable the DMA Stream */
mbed_official 490:119543c9f674 1141 HAL_DMA_Start_IT(hadc->DMA_Handle, (uint32_t)&hadc->Instance->DR, (uint32_t)pData, Length);
mbed_official 490:119543c9f674 1142
mbed_official 490:119543c9f674 1143 /* ADC start conversion command */
mbed_official 490:119543c9f674 1144 hadc->Instance->CR |= ADC_CR_ADSTART;
mbed_official 490:119543c9f674 1145 }
mbed_official 490:119543c9f674 1146
mbed_official 490:119543c9f674 1147 /* Process unlocked */
mbed_official 490:119543c9f674 1148 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 1149 }
mbed_official 490:119543c9f674 1150 else
mbed_official 490:119543c9f674 1151 {
mbed_official 490:119543c9f674 1152 tmpHALStatus = HAL_BUSY;
mbed_official 490:119543c9f674 1153 }
mbed_official 376:cb4d9db17537 1154
mbed_official 376:cb4d9db17537 1155 /* Return function status */
mbed_official 490:119543c9f674 1156 return tmpHALStatus;
mbed_official 376:cb4d9db17537 1157 }
mbed_official 376:cb4d9db17537 1158
mbed_official 376:cb4d9db17537 1159 /**
mbed_official 376:cb4d9db17537 1160 * @brief Disable ADC DMA (Single-ADC mode), disable ADC peripheral
mbed_official 376:cb4d9db17537 1161 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1162 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1163 * @retval None
mbed_official 376:cb4d9db17537 1164 */
mbed_official 376:cb4d9db17537 1165 HAL_StatusTypeDef HAL_ADC_Stop_DMA(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 1166 {
mbed_official 376:cb4d9db17537 1167 HAL_StatusTypeDef tmpHALStatus = HAL_OK;
mbed_official 376:cb4d9db17537 1168
mbed_official 376:cb4d9db17537 1169 /* Process locked */
mbed_official 376:cb4d9db17537 1170 __HAL_LOCK(hadc);
mbed_official 376:cb4d9db17537 1171
mbed_official 376:cb4d9db17537 1172 /* 1. Stop potential conversion ongoing (regular conversion) */
mbed_official 490:119543c9f674 1173 tmpHALStatus = ADC_ConversionStop(hadc, ADC_REGULAR_GROUP);
mbed_official 376:cb4d9db17537 1174
mbed_official 376:cb4d9db17537 1175 /* 2. Disable ADC peripheral if conversions are effectively stopped */
mbed_official 376:cb4d9db17537 1176 if (tmpHALStatus != HAL_ERROR)
mbed_official 376:cb4d9db17537 1177 {
mbed_official 376:cb4d9db17537 1178 /* Disable ADC DMA (ADC DMA configuration ADC_CFGR_DMACFG is kept) */
mbed_official 376:cb4d9db17537 1179 hadc->Instance->CFGR1 &= ~ADC_CFGR1_DMAEN;
mbed_official 376:cb4d9db17537 1180
mbed_official 376:cb4d9db17537 1181 /* Disable the DMA Stream */
mbed_official 376:cb4d9db17537 1182 if (HAL_DMA_Abort(hadc->DMA_Handle) != HAL_OK)
mbed_official 376:cb4d9db17537 1183 {
mbed_official 376:cb4d9db17537 1184 /* Update ADC state machine to error */
mbed_official 376:cb4d9db17537 1185 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 1186
mbed_official 376:cb4d9db17537 1187 /* Process unlocked */
mbed_official 376:cb4d9db17537 1188 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 1189
mbed_official 376:cb4d9db17537 1190 return HAL_ERROR;
mbed_official 376:cb4d9db17537 1191 }
mbed_official 376:cb4d9db17537 1192
mbed_official 376:cb4d9db17537 1193 /* Disable ADC overrun interrupt */
mbed_official 376:cb4d9db17537 1194 __HAL_ADC_DISABLE_IT(hadc, ADC_IT_OVR);
mbed_official 376:cb4d9db17537 1195
mbed_official 376:cb4d9db17537 1196 /* Disable the ADC peripheral */
mbed_official 490:119543c9f674 1197 tmpHALStatus = ADC_Disable(hadc);
mbed_official 376:cb4d9db17537 1198
mbed_official 376:cb4d9db17537 1199 /* Check if ADC is effectively disabled */
mbed_official 490:119543c9f674 1200 if ((hadc->State != HAL_ADC_STATE_ERROR) && (tmpHALStatus != HAL_ERROR))
mbed_official 376:cb4d9db17537 1201 {
mbed_official 376:cb4d9db17537 1202 /* Change ADC state */
mbed_official 376:cb4d9db17537 1203 hadc->State = HAL_ADC_STATE_READY;
mbed_official 376:cb4d9db17537 1204 }
mbed_official 376:cb4d9db17537 1205 else
mbed_official 376:cb4d9db17537 1206 {
mbed_official 376:cb4d9db17537 1207 return HAL_ERROR;
mbed_official 376:cb4d9db17537 1208 }
mbed_official 376:cb4d9db17537 1209 }
mbed_official 376:cb4d9db17537 1210 else
mbed_official 376:cb4d9db17537 1211 {
mbed_official 376:cb4d9db17537 1212 return HAL_ERROR;
mbed_official 376:cb4d9db17537 1213 }
mbed_official 376:cb4d9db17537 1214
mbed_official 376:cb4d9db17537 1215 /* Process unlocked */
mbed_official 376:cb4d9db17537 1216 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 1217
mbed_official 376:cb4d9db17537 1218 /* Return function status */
mbed_official 376:cb4d9db17537 1219 return HAL_OK;
mbed_official 376:cb4d9db17537 1220 }
mbed_official 376:cb4d9db17537 1221
mbed_official 376:cb4d9db17537 1222 /**
mbed_official 376:cb4d9db17537 1223 * @brief Gets the converted value from data register of regular channel.
mbed_official 376:cb4d9db17537 1224 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1225 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1226 * @retval Converted value
mbed_official 376:cb4d9db17537 1227 */
mbed_official 376:cb4d9db17537 1228 uint32_t HAL_ADC_GetValue(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 1229 {
mbed_official 376:cb4d9db17537 1230 /* Return the selected ADC converted value */
mbed_official 376:cb4d9db17537 1231 return hadc->Instance->DR;
mbed_official 376:cb4d9db17537 1232 }
mbed_official 376:cb4d9db17537 1233
mbed_official 376:cb4d9db17537 1234 /**
mbed_official 376:cb4d9db17537 1235 * @brief Regular conversion complete callback in non blocking mode
mbed_official 376:cb4d9db17537 1236 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1237 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1238 * @retval None
mbed_official 376:cb4d9db17537 1239 */
mbed_official 376:cb4d9db17537 1240 __weak void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 1241 {
mbed_official 376:cb4d9db17537 1242 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 376:cb4d9db17537 1243 the HAL_ADC_ConvCpltCallback could be implemented in the user file
mbed_official 376:cb4d9db17537 1244 */
mbed_official 376:cb4d9db17537 1245 }
mbed_official 376:cb4d9db17537 1246
mbed_official 376:cb4d9db17537 1247 /**
mbed_official 376:cb4d9db17537 1248 * @brief Regular conversion half DMA transfer callback in non blocking mode
mbed_official 376:cb4d9db17537 1249 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1250 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1251 * @retval None
mbed_official 376:cb4d9db17537 1252 */
mbed_official 376:cb4d9db17537 1253 __weak void HAL_ADC_ConvHalfCpltCallback(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 1254 {
mbed_official 376:cb4d9db17537 1255 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 376:cb4d9db17537 1256 the HAL_ADC_ConvHalfCpltCallback could be implemented in the user file
mbed_official 376:cb4d9db17537 1257 */
mbed_official 376:cb4d9db17537 1258 }
mbed_official 376:cb4d9db17537 1259
mbed_official 376:cb4d9db17537 1260 /**
mbed_official 376:cb4d9db17537 1261 * @brief Analog watchdog callback in non blocking mode
mbed_official 376:cb4d9db17537 1262 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1263 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1264 * @retval None
mbed_official 376:cb4d9db17537 1265 */
mbed_official 376:cb4d9db17537 1266 __weak void HAL_ADC_LevelOutOfWindowCallback(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 1267 {
mbed_official 376:cb4d9db17537 1268 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 376:cb4d9db17537 1269 the HAL_ADC_LevelOoutOfWindowCallback could be implemented in the user file
mbed_official 376:cb4d9db17537 1270 */
mbed_official 376:cb4d9db17537 1271 }
mbed_official 376:cb4d9db17537 1272
mbed_official 376:cb4d9db17537 1273 /**
mbed_official 376:cb4d9db17537 1274 * @brief Error ADC callback.
mbed_official 376:cb4d9db17537 1275 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1276 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1277 * @retval None
mbed_official 376:cb4d9db17537 1278 */
mbed_official 376:cb4d9db17537 1279 __weak void HAL_ADC_ErrorCallback(ADC_HandleTypeDef *hadc)
mbed_official 376:cb4d9db17537 1280 {
mbed_official 376:cb4d9db17537 1281 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 376:cb4d9db17537 1282 the HAL_ADC_ErrorCallback could be implemented in the user file
mbed_official 376:cb4d9db17537 1283 */
mbed_official 376:cb4d9db17537 1284 }
mbed_official 376:cb4d9db17537 1285
mbed_official 376:cb4d9db17537 1286 /**
mbed_official 376:cb4d9db17537 1287 * @}
mbed_official 376:cb4d9db17537 1288 */
mbed_official 376:cb4d9db17537 1289
mbed_official 376:cb4d9db17537 1290 /** @defgroup ADC_Group3 Peripheral Control functions
mbed_official 376:cb4d9db17537 1291 * @brief Peripheral Control functions
mbed_official 376:cb4d9db17537 1292 *
mbed_official 376:cb4d9db17537 1293 @verbatim
mbed_official 376:cb4d9db17537 1294 ===============================================================================
mbed_official 376:cb4d9db17537 1295 ##### Peripheral Control functions #####
mbed_official 376:cb4d9db17537 1296 ===============================================================================
mbed_official 376:cb4d9db17537 1297 [..] This section provides functions allowing to:
mbed_official 376:cb4d9db17537 1298 (+) Configure channels.
mbed_official 376:cb4d9db17537 1299 (+) Configure the analog watch dog.
mbed_official 376:cb4d9db17537 1300
mbed_official 376:cb4d9db17537 1301 @endverbatim
mbed_official 376:cb4d9db17537 1302 * @{
mbed_official 376:cb4d9db17537 1303 */
mbed_official 376:cb4d9db17537 1304
mbed_official 376:cb4d9db17537 1305
mbed_official 376:cb4d9db17537 1306 /**
mbed_official 376:cb4d9db17537 1307 * @brief Configures the selected ADC regular channel: sampling time,
mbed_official 376:cb4d9db17537 1308 * offset,.
mbed_official 376:cb4d9db17537 1309 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1310 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1311 * @param sConfig: ADC regular channel configuration structure.
mbed_official 376:cb4d9db17537 1312 * @retval HAL status
mbed_official 376:cb4d9db17537 1313 */
mbed_official 376:cb4d9db17537 1314 HAL_StatusTypeDef HAL_ADC_ConfigChannel(ADC_HandleTypeDef* hadc, ADC_ChannelConfTypeDef* sConfig)
mbed_official 376:cb4d9db17537 1315 {
mbed_official 376:cb4d9db17537 1316 /* Check the parameters */
mbed_official 376:cb4d9db17537 1317 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 376:cb4d9db17537 1318 assert_param(IS_ADC_CHANNEL(sConfig->Channel));
mbed_official 376:cb4d9db17537 1319
mbed_official 376:cb4d9db17537 1320 /* Process locked */
mbed_official 376:cb4d9db17537 1321 __HAL_LOCK(hadc);
mbed_official 376:cb4d9db17537 1322
mbed_official 490:119543c9f674 1323 /* Parameters update conditioned to ADC state: */
mbed_official 490:119543c9f674 1324 /* Parameters that can be updated when ADC is disabled or enabled without */
mbed_official 490:119543c9f674 1325 /* conversion on going : */
mbed_official 490:119543c9f674 1326 /* - Channel number */
mbed_official 490:119543c9f674 1327 /* - Management of internal measurement channels: Vbat/VrefInt/TempSensor */
mbed_official 490:119543c9f674 1328 if (ADC_IS_CONVERSION_ONGOING(hadc) != RESET)
mbed_official 490:119543c9f674 1329 {
mbed_official 490:119543c9f674 1330 /* Update ADC state machine to error */
mbed_official 490:119543c9f674 1331 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 490:119543c9f674 1332 /* Process unlocked */
mbed_official 490:119543c9f674 1333 __HAL_UNLOCK(hadc);
mbed_official 490:119543c9f674 1334 return HAL_ERROR;
mbed_official 490:119543c9f674 1335 }
mbed_official 490:119543c9f674 1336
mbed_official 376:cb4d9db17537 1337 /* Enable selected channels */
mbed_official 376:cb4d9db17537 1338 hadc->Instance->CHSELR |= (uint32_t)(sConfig->Channel & ADC_CHANNEL_MASK);
mbed_official 376:cb4d9db17537 1339
mbed_official 376:cb4d9db17537 1340 /* Management of internal measurement channels: Vlcd/VrefInt/TempSensor */
mbed_official 376:cb4d9db17537 1341 /* internal measurement paths enable: If internal channel selected, enable */
mbed_official 376:cb4d9db17537 1342 /* dedicated internal buffers and path. */
mbed_official 376:cb4d9db17537 1343
mbed_official 376:cb4d9db17537 1344 /* If Temperature sensor channel is selected, then enable the internal */
mbed_official 376:cb4d9db17537 1345 /* buffers and path */
mbed_official 376:cb4d9db17537 1346 if (((sConfig->Channel & ADC_CHANNEL_MASK) & ADC_CHANNEL_TEMPSENSOR ) == (ADC_CHANNEL_TEMPSENSOR & ADC_CHANNEL_MASK))
mbed_official 376:cb4d9db17537 1347 {
mbed_official 376:cb4d9db17537 1348 ADC->CCR |= ADC_CCR_TSEN;
mbed_official 490:119543c9f674 1349
mbed_official 490:119543c9f674 1350 /* Delay for temperature sensor stabilization time */
mbed_official 490:119543c9f674 1351 ADC_DelayMicroSecond(ADC_TEMPSENSOR_DELAY_US);
mbed_official 376:cb4d9db17537 1352 }
mbed_official 376:cb4d9db17537 1353
mbed_official 376:cb4d9db17537 1354 /* If VRefInt channel is selected, then enable the internal buffers and path */
mbed_official 376:cb4d9db17537 1355 if (((sConfig->Channel & ADC_CHANNEL_MASK) & ADC_CHANNEL_VREFINT) == (ADC_CHANNEL_VREFINT & ADC_CHANNEL_MASK))
mbed_official 376:cb4d9db17537 1356 {
mbed_official 376:cb4d9db17537 1357 ADC->CCR |= ADC_CCR_VREFEN;
mbed_official 376:cb4d9db17537 1358 }
mbed_official 376:cb4d9db17537 1359
mbed_official 376:cb4d9db17537 1360 /* If Vlcd channel is selected, then enable the internal buffers and path */
mbed_official 376:cb4d9db17537 1361 if (((sConfig->Channel & ADC_CHANNEL_MASK) & ADC_CHANNEL_VLCD) == (ADC_CHANNEL_VLCD & ADC_CHANNEL_MASK))
mbed_official 376:cb4d9db17537 1362 {
mbed_official 376:cb4d9db17537 1363 ADC->CCR |= ADC_CCR_VLCDEN;
mbed_official 376:cb4d9db17537 1364 }
mbed_official 376:cb4d9db17537 1365
mbed_official 376:cb4d9db17537 1366 /* Process unlocked */
mbed_official 376:cb4d9db17537 1367 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 1368
mbed_official 376:cb4d9db17537 1369 /* Return function status */
mbed_official 376:cb4d9db17537 1370 return HAL_OK;
mbed_official 376:cb4d9db17537 1371 }
mbed_official 376:cb4d9db17537 1372
mbed_official 376:cb4d9db17537 1373 /**
mbed_official 376:cb4d9db17537 1374 * @brief Configures the analog watchdog.
mbed_official 376:cb4d9db17537 1375 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1376 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1377 * @param AnalogWDGConfig : pointer to an ADC_AnalogWDGConfTypeDef structure
mbed_official 376:cb4d9db17537 1378 * that contains the configuration information of ADC analog watchdog.
mbed_official 376:cb4d9db17537 1379 * @retval HAL status
mbed_official 376:cb4d9db17537 1380 */
mbed_official 376:cb4d9db17537 1381 HAL_StatusTypeDef HAL_ADC_AnalogWDGConfig(ADC_HandleTypeDef* hadc, ADC_AnalogWDGConfTypeDef* AnalogWDGConfig)
mbed_official 376:cb4d9db17537 1382 {
mbed_official 376:cb4d9db17537 1383 uint32_t tmpAWDHighThresholdShifted;
mbed_official 376:cb4d9db17537 1384 uint32_t tmpAWDLowThresholdShifted;
mbed_official 376:cb4d9db17537 1385
mbed_official 376:cb4d9db17537 1386 /* Check the parameters */
mbed_official 376:cb4d9db17537 1387 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 376:cb4d9db17537 1388 assert_param(IS_ADC_ANALOG_WATCHDOG_MODE(AnalogWDGConfig->WatchdogMode));
mbed_official 376:cb4d9db17537 1389 assert_param(IS_ADC_CHANNEL(AnalogWDGConfig->Channel));
mbed_official 376:cb4d9db17537 1390 assert_param(IS_FUNCTIONAL_STATE(AnalogWDGConfig->ITMode));
mbed_official 376:cb4d9db17537 1391
mbed_official 490:119543c9f674 1392 assert_param(IS_ADC_RANGE(ADC_GET_RESOLUTION(hadc), AnalogWDGConfig->HighThreshold));
mbed_official 490:119543c9f674 1393 assert_param(IS_ADC_RANGE(ADC_GET_RESOLUTION(hadc), AnalogWDGConfig->LowThreshold));
mbed_official 376:cb4d9db17537 1394
mbed_official 376:cb4d9db17537 1395 /* Process locked */
mbed_official 376:cb4d9db17537 1396 __HAL_LOCK(hadc);
mbed_official 376:cb4d9db17537 1397
mbed_official 490:119543c9f674 1398 /* Parameters update conditioned to ADC state: */
mbed_official 490:119543c9f674 1399 /* Parameters that can be updated when ADC is disabled or enabled without */
mbed_official 490:119543c9f674 1400 /* conversion on going : */
mbed_official 490:119543c9f674 1401 /* - Analog watchdog channels */
mbed_official 490:119543c9f674 1402 /* - Analog watchdog thresholds */
mbed_official 490:119543c9f674 1403 if (ADC_IS_CONVERSION_ONGOING(hadc) != RESET)
mbed_official 490:119543c9f674 1404 {
mbed_official 490:119543c9f674 1405 /* Update ADC state machine to error */
mbed_official 490:119543c9f674 1406 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 490:119543c9f674 1407 /* Process unlocked */
mbed_official 490:119543c9f674 1408 __HAL_UNLOCK(hadc);
mbed_official 490:119543c9f674 1409 return HAL_ERROR;
mbed_official 490:119543c9f674 1410 }
mbed_official 490:119543c9f674 1411
mbed_official 376:cb4d9db17537 1412 /* Configure ADC Analog watchdog interrupt */
mbed_official 376:cb4d9db17537 1413 if(AnalogWDGConfig->ITMode == ENABLE)
mbed_official 376:cb4d9db17537 1414 {
mbed_official 376:cb4d9db17537 1415 /* Enable the ADC Analog watchdog interrupt */
mbed_official 376:cb4d9db17537 1416 __HAL_ADC_ENABLE_IT(hadc, ADC_IT_AWD);
mbed_official 376:cb4d9db17537 1417 }
mbed_official 376:cb4d9db17537 1418 else
mbed_official 376:cb4d9db17537 1419 {
mbed_official 376:cb4d9db17537 1420 /* Disable the ADC Analog watchdog interrupt */
mbed_official 376:cb4d9db17537 1421 __HAL_ADC_DISABLE_IT(hadc, ADC_IT_AWD);
mbed_official 376:cb4d9db17537 1422 }
mbed_official 376:cb4d9db17537 1423
mbed_official 376:cb4d9db17537 1424 /* Configuration of analog watchdog: */
mbed_official 376:cb4d9db17537 1425 /* - Set the analog watchdog mode */
mbed_official 376:cb4d9db17537 1426 /* - Set the Analog watchdog channel (is not used if watchdog */
mbed_official 376:cb4d9db17537 1427 /* mode "all channels": ADC_CFGR1_AWD1SGL=0) */
mbed_official 376:cb4d9db17537 1428 hadc->Instance->CFGR1 &= ~( ADC_CFGR1_AWDSGL |
mbed_official 376:cb4d9db17537 1429 ADC_CFGR1_AWDEN |
mbed_official 490:119543c9f674 1430 ADC_CFGR1_AWDCH);
mbed_official 376:cb4d9db17537 1431
mbed_official 376:cb4d9db17537 1432 hadc->Instance->CFGR1 |= ( AnalogWDGConfig->WatchdogMode |
mbed_official 376:cb4d9db17537 1433 (AnalogWDGConfig->Channel & ADC_CHANNEL_AWD_MASK));
mbed_official 376:cb4d9db17537 1434
mbed_official 376:cb4d9db17537 1435
mbed_official 376:cb4d9db17537 1436 /* Shift the offset in function of the selected ADC resolution: Thresholds */
mbed_official 376:cb4d9db17537 1437 /* have to be left-aligned on bit 11, the LSB (right bits) are set to 0 */
mbed_official 490:119543c9f674 1438 tmpAWDHighThresholdShifted = ADC_AWD1THRESHOLD_SHIFT_RESOLUTION(hadc, AnalogWDGConfig->HighThreshold);
mbed_official 490:119543c9f674 1439 tmpAWDLowThresholdShifted = ADC_AWD1THRESHOLD_SHIFT_RESOLUTION(hadc, AnalogWDGConfig->LowThreshold);
mbed_official 376:cb4d9db17537 1440
mbed_official 376:cb4d9db17537 1441 /* Clear High & Low high thresholds */
mbed_official 376:cb4d9db17537 1442 hadc->Instance->TR &= (uint32_t) ~ (ADC_TR_HT | ADC_TR_LT);
mbed_official 376:cb4d9db17537 1443
mbed_official 376:cb4d9db17537 1444 /* Set the high threshold */
mbed_official 490:119543c9f674 1445 hadc->Instance->TR = ADC_TRX_HIGHTHRESHOLD (tmpAWDHighThresholdShifted);
mbed_official 376:cb4d9db17537 1446 /* Set the low threshold */
mbed_official 376:cb4d9db17537 1447 hadc->Instance->TR |= tmpAWDLowThresholdShifted;
mbed_official 376:cb4d9db17537 1448
mbed_official 376:cb4d9db17537 1449 /* Process unlocked */
mbed_official 376:cb4d9db17537 1450 __HAL_UNLOCK(hadc);
mbed_official 376:cb4d9db17537 1451
mbed_official 376:cb4d9db17537 1452 /* Return function status */
mbed_official 376:cb4d9db17537 1453 return HAL_OK;
mbed_official 376:cb4d9db17537 1454 }
mbed_official 376:cb4d9db17537 1455
mbed_official 376:cb4d9db17537 1456 /**
mbed_official 376:cb4d9db17537 1457 * @}
mbed_official 376:cb4d9db17537 1458 */
mbed_official 376:cb4d9db17537 1459
mbed_official 376:cb4d9db17537 1460 /** @defgroup ADC_Group4 ADC Peripheral State functions
mbed_official 376:cb4d9db17537 1461 * @brief ADC Peripheral State functions
mbed_official 376:cb4d9db17537 1462 *
mbed_official 376:cb4d9db17537 1463 @verbatim
mbed_official 376:cb4d9db17537 1464 ===============================================================================
mbed_official 376:cb4d9db17537 1465 ##### ADC Peripheral State functions #####
mbed_official 376:cb4d9db17537 1466 ===============================================================================
mbed_official 376:cb4d9db17537 1467 [..]
mbed_official 376:cb4d9db17537 1468 This subsection provides functions allowing to
mbed_official 376:cb4d9db17537 1469 (+) Check the ADC state.
mbed_official 376:cb4d9db17537 1470 (+) handle ADC interrupt request.
mbed_official 376:cb4d9db17537 1471
mbed_official 376:cb4d9db17537 1472 @endverbatim
mbed_official 376:cb4d9db17537 1473 * @{
mbed_official 376:cb4d9db17537 1474 */
mbed_official 376:cb4d9db17537 1475
mbed_official 376:cb4d9db17537 1476 /**
mbed_official 376:cb4d9db17537 1477 * @brief return the ADC state
mbed_official 376:cb4d9db17537 1478 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1479 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1480 * @retval HAL state
mbed_official 376:cb4d9db17537 1481 */
mbed_official 376:cb4d9db17537 1482 HAL_ADC_StateTypeDef HAL_ADC_GetState(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 1483 {
mbed_official 376:cb4d9db17537 1484 /* Return ADC state */
mbed_official 376:cb4d9db17537 1485 return hadc->State;
mbed_official 376:cb4d9db17537 1486 }
mbed_official 376:cb4d9db17537 1487
mbed_official 376:cb4d9db17537 1488 /**
mbed_official 376:cb4d9db17537 1489 * @brief Return the ADC error code
mbed_official 376:cb4d9db17537 1490 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
mbed_official 376:cb4d9db17537 1491 * the configuration information for the specified ADC.
mbed_official 376:cb4d9db17537 1492 * @retval ADC Error Code
mbed_official 376:cb4d9db17537 1493 */
mbed_official 376:cb4d9db17537 1494 uint32_t HAL_ADC_GetError(ADC_HandleTypeDef *hadc)
mbed_official 376:cb4d9db17537 1495 {
mbed_official 376:cb4d9db17537 1496 return hadc->ErrorCode;
mbed_official 376:cb4d9db17537 1497 }
mbed_official 376:cb4d9db17537 1498
mbed_official 376:cb4d9db17537 1499
mbed_official 376:cb4d9db17537 1500 /**
mbed_official 376:cb4d9db17537 1501 * @}
mbed_official 376:cb4d9db17537 1502 */
mbed_official 376:cb4d9db17537 1503
mbed_official 376:cb4d9db17537 1504 /**
mbed_official 376:cb4d9db17537 1505 * @brief Enable the selected ADC.
mbed_official 376:cb4d9db17537 1506 * @note Prerequisite condition to use this function: ADC must be disabled
mbed_official 376:cb4d9db17537 1507 * and voltage regulator must be enabled (done into HAL_ADC_Init()).
mbed_official 490:119543c9f674 1508 * @note If low power mode AutoPowerOff is enabled, power-on/off phases are
mbed_official 490:119543c9f674 1509 * performed automatically by hardware.
mbed_official 490:119543c9f674 1510 * In this mode, this function is useless and must not be called because
mbed_official 490:119543c9f674 1511 * flag ADC_FLAG_RDY is not usable.
mbed_official 490:119543c9f674 1512 * Therefore, this function must be called under condition of
mbed_official 490:119543c9f674 1513 * "if (hadc->Init.LowPowerAutoPowerOff != ENABLE)".
mbed_official 376:cb4d9db17537 1514 * @param hadc: ADC handle
mbed_official 376:cb4d9db17537 1515 * @retval HAL status.
mbed_official 376:cb4d9db17537 1516 */
mbed_official 376:cb4d9db17537 1517 static HAL_StatusTypeDef ADC_Enable(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 1518 {
mbed_official 376:cb4d9db17537 1519 uint32_t tickstart = 0;
mbed_official 490:119543c9f674 1520
mbed_official 376:cb4d9db17537 1521 /* ADC enable and wait for ADC ready (in case of ADC is disabled or */
mbed_official 376:cb4d9db17537 1522 /* enabling phase not yet completed: flag ADC ready not yet set). */
mbed_official 376:cb4d9db17537 1523 /* Timeout implemented to not be stuck if ADC cannot be enabled (possible */
mbed_official 376:cb4d9db17537 1524 /* causes: ADC clock not running, ...). */
mbed_official 490:119543c9f674 1525 if (ADC_IS_ENABLE(hadc) == RESET)
mbed_official 376:cb4d9db17537 1526 {
mbed_official 376:cb4d9db17537 1527 /* Check if conditions to enable the ADC are fulfilled */
mbed_official 490:119543c9f674 1528 if (ADC_ENABLING_CONDITIONS(hadc) == RESET)
mbed_official 376:cb4d9db17537 1529 {
mbed_official 376:cb4d9db17537 1530 /* Update ADC state machine to error */
mbed_official 376:cb4d9db17537 1531 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 1532
mbed_official 376:cb4d9db17537 1533 /* Set ADC error code to ADC IP internal error */
mbed_official 376:cb4d9db17537 1534 hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
mbed_official 376:cb4d9db17537 1535
mbed_official 376:cb4d9db17537 1536 return HAL_ERROR;
mbed_official 376:cb4d9db17537 1537 }
mbed_official 376:cb4d9db17537 1538
mbed_official 376:cb4d9db17537 1539 /* Enable the ADC peripheral */
mbed_official 376:cb4d9db17537 1540 __HAL_ADC_ENABLE(hadc);
mbed_official 376:cb4d9db17537 1541
mbed_official 490:119543c9f674 1542 /* Delay for ADC stabilization time. */
mbed_official 490:119543c9f674 1543 ADC_DelayMicroSecond(ADC_STAB_DELAY_US);
mbed_official 490:119543c9f674 1544
mbed_official 376:cb4d9db17537 1545 /* Wait for ADC effectively enabled */
mbed_official 376:cb4d9db17537 1546 /* Get timeout */
mbed_official 376:cb4d9db17537 1547 tickstart = HAL_GetTick();
mbed_official 376:cb4d9db17537 1548
mbed_official 376:cb4d9db17537 1549 /* Skip polling for RDY ADRDY when AutoOFF is enabled */
mbed_official 490:119543c9f674 1550 if (hadc->Init.LowPowerAutoPowerOff != ENABLE)
mbed_official 376:cb4d9db17537 1551 {
mbed_official 376:cb4d9db17537 1552 while(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_RDY) == RESET)
mbed_official 376:cb4d9db17537 1553 {
mbed_official 376:cb4d9db17537 1554 /* Check for the Timeout */
mbed_official 376:cb4d9db17537 1555 if(ADC_ENABLE_TIMEOUT != HAL_MAX_DELAY)
mbed_official 376:cb4d9db17537 1556 {
mbed_official 376:cb4d9db17537 1557 if((HAL_GetTick() - tickstart ) > ADC_ENABLE_TIMEOUT)
mbed_official 376:cb4d9db17537 1558 {
mbed_official 376:cb4d9db17537 1559 /* Update ADC state machine to error */
mbed_official 376:cb4d9db17537 1560 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 1561
mbed_official 376:cb4d9db17537 1562 /* Set ADC error code to ADC IP internal error */
mbed_official 376:cb4d9db17537 1563 hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
mbed_official 376:cb4d9db17537 1564
mbed_official 376:cb4d9db17537 1565 return HAL_ERROR;
mbed_official 376:cb4d9db17537 1566 }
mbed_official 376:cb4d9db17537 1567 }
mbed_official 376:cb4d9db17537 1568 }
mbed_official 376:cb4d9db17537 1569 }
mbed_official 376:cb4d9db17537 1570 }
mbed_official 376:cb4d9db17537 1571
mbed_official 376:cb4d9db17537 1572 /* Return HAL status */
mbed_official 376:cb4d9db17537 1573 return HAL_OK;
mbed_official 376:cb4d9db17537 1574 }
mbed_official 376:cb4d9db17537 1575
mbed_official 376:cb4d9db17537 1576 /**
mbed_official 376:cb4d9db17537 1577 * @brief Disable the selected ADC.
mbed_official 376:cb4d9db17537 1578 * @note Prerequisite condition to use this function: ADC conversions must be
mbed_official 376:cb4d9db17537 1579 * stopped to disable the ADC.
mbed_official 376:cb4d9db17537 1580 * @param hadc: ADC handle
mbed_official 376:cb4d9db17537 1581 * @retval HAL status.
mbed_official 376:cb4d9db17537 1582 */
mbed_official 376:cb4d9db17537 1583 static HAL_StatusTypeDef ADC_Disable(ADC_HandleTypeDef* hadc)
mbed_official 376:cb4d9db17537 1584 {
mbed_official 376:cb4d9db17537 1585 uint32_t tickstart = 0;
mbed_official 376:cb4d9db17537 1586
mbed_official 376:cb4d9db17537 1587 /* Verification if ADC is not already disabled: */
mbed_official 376:cb4d9db17537 1588 /* forbidden to disable ADC (set bit ADC_CR_ADDIS) if ADC is already */
mbed_official 376:cb4d9db17537 1589 /* disabled. */
mbed_official 490:119543c9f674 1590 if (ADC_IS_ENABLE(hadc) != RESET )
mbed_official 376:cb4d9db17537 1591 {
mbed_official 376:cb4d9db17537 1592 /* Check if conditions to disable the ADC are fulfilled */
mbed_official 490:119543c9f674 1593 if (ADC_DISABLING_CONDITIONS(hadc) != RESET)
mbed_official 376:cb4d9db17537 1594 {
mbed_official 376:cb4d9db17537 1595 /* Disable the ADC peripheral */
mbed_official 376:cb4d9db17537 1596 __HAL_ADC_DISABLE(hadc);
mbed_official 376:cb4d9db17537 1597 }
mbed_official 376:cb4d9db17537 1598 else
mbed_official 376:cb4d9db17537 1599 {
mbed_official 376:cb4d9db17537 1600 /* Update ADC state machine to error */
mbed_official 376:cb4d9db17537 1601 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 1602
mbed_official 376:cb4d9db17537 1603 /* Set ADC error code to ADC internal error */
mbed_official 376:cb4d9db17537 1604 hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
mbed_official 376:cb4d9db17537 1605
mbed_official 376:cb4d9db17537 1606 return HAL_ERROR;
mbed_official 376:cb4d9db17537 1607 }
mbed_official 376:cb4d9db17537 1608
mbed_official 376:cb4d9db17537 1609 /* Wait for ADC effectively disabled */
mbed_official 376:cb4d9db17537 1610 /* Get timeout */
mbed_official 376:cb4d9db17537 1611 tickstart = HAL_GetTick();
mbed_official 376:cb4d9db17537 1612
mbed_official 376:cb4d9db17537 1613 while(HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADEN))
mbed_official 376:cb4d9db17537 1614 {
mbed_official 376:cb4d9db17537 1615 /* Check for the Timeout */
mbed_official 376:cb4d9db17537 1616 if(ADC_ENABLE_TIMEOUT != HAL_MAX_DELAY)
mbed_official 376:cb4d9db17537 1617 {
mbed_official 376:cb4d9db17537 1618 if((HAL_GetTick() - tickstart ) > ADC_DISABLE_TIMEOUT)
mbed_official 376:cb4d9db17537 1619 {
mbed_official 376:cb4d9db17537 1620 /* Update ADC state machine to error */
mbed_official 376:cb4d9db17537 1621 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 1622
mbed_official 376:cb4d9db17537 1623 /* Set ADC error code to ADC internal error */
mbed_official 376:cb4d9db17537 1624 hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
mbed_official 376:cb4d9db17537 1625
mbed_official 376:cb4d9db17537 1626 return HAL_ERROR;
mbed_official 376:cb4d9db17537 1627 }
mbed_official 376:cb4d9db17537 1628 }
mbed_official 376:cb4d9db17537 1629 }
mbed_official 376:cb4d9db17537 1630 }
mbed_official 376:cb4d9db17537 1631
mbed_official 376:cb4d9db17537 1632 /* Return HAL status */
mbed_official 376:cb4d9db17537 1633 return HAL_OK;
mbed_official 376:cb4d9db17537 1634 }
mbed_official 376:cb4d9db17537 1635
mbed_official 376:cb4d9db17537 1636 /**
mbed_official 376:cb4d9db17537 1637 * @brief Stop ADC conversion.
mbed_official 376:cb4d9db17537 1638 * @note Prerequisite condition to use this function: ADC conversions must be
mbed_official 376:cb4d9db17537 1639 * stopped to disable the ADC.
mbed_official 376:cb4d9db17537 1640 * @param hadc: ADC handle
mbed_official 376:cb4d9db17537 1641 * @param ConversionGroup: Only ADC group regular.
mbed_official 376:cb4d9db17537 1642 * This parameter can be one of the following values:
mbed_official 490:119543c9f674 1643 * @arg ADC_REGULAR_GROUP: ADC regular conversion type.
mbed_official 376:cb4d9db17537 1644 * @retval HAL status.
mbed_official 376:cb4d9db17537 1645 */
mbed_official 376:cb4d9db17537 1646 static HAL_StatusTypeDef ADC_ConversionStop(ADC_HandleTypeDef* hadc, uint32_t ConversionGroup)
mbed_official 376:cb4d9db17537 1647 {
mbed_official 376:cb4d9db17537 1648 uint32_t tickstart = 0 ;
mbed_official 376:cb4d9db17537 1649
mbed_official 376:cb4d9db17537 1650 /* Check the parameters */
mbed_official 376:cb4d9db17537 1651 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
mbed_official 376:cb4d9db17537 1652 assert_param(IS_ADC_CONVERSION_GROUP(ConversionGroup));
mbed_official 490:119543c9f674 1653
mbed_official 490:119543c9f674 1654 /* Parameters update conditioned to ADC state: */
mbed_official 490:119543c9f674 1655 /* Parameters that can be updated when ADC is disabled or enabled without */
mbed_official 490:119543c9f674 1656 /* conversion on going : */
mbed_official 490:119543c9f674 1657 if (ADC_IS_CONVERSION_ONGOING(hadc) != RESET)
mbed_official 490:119543c9f674 1658 {
mbed_official 490:119543c9f674 1659 /* Update ADC state machine to error */
mbed_official 490:119543c9f674 1660 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 490:119543c9f674 1661 /* Process unlocked */
mbed_official 490:119543c9f674 1662 return HAL_ERROR;
mbed_official 490:119543c9f674 1663 }
mbed_official 490:119543c9f674 1664
mbed_official 376:cb4d9db17537 1665 /* Verification: if ADC is not already stopped, bypass this function */
mbed_official 376:cb4d9db17537 1666 if (HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADSTART))
mbed_official 376:cb4d9db17537 1667 {
mbed_official 376:cb4d9db17537 1668 /* Stop potential conversion on regular group */
mbed_official 490:119543c9f674 1669 if (ConversionGroup == ADC_REGULAR_GROUP)
mbed_official 376:cb4d9db17537 1670 {
mbed_official 376:cb4d9db17537 1671 /* Software is allowed to set ADSTP only when ADSTART=1 and ADDIS=0 */
mbed_official 376:cb4d9db17537 1672 if (HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADSTART) && \
mbed_official 376:cb4d9db17537 1673 HAL_IS_BIT_CLR(hadc->Instance->CR, ADC_CR_ADDIS) )
mbed_official 376:cb4d9db17537 1674 {
mbed_official 376:cb4d9db17537 1675 /* Stop conversions on regular group */
mbed_official 376:cb4d9db17537 1676 hadc->Instance->CR |= ADC_CR_ADSTP;
mbed_official 376:cb4d9db17537 1677 }
mbed_official 376:cb4d9db17537 1678 }
mbed_official 376:cb4d9db17537 1679
mbed_official 376:cb4d9db17537 1680 /* Wait for conversion effectively stopped */
mbed_official 376:cb4d9db17537 1681 /* Get timeout */
mbed_official 376:cb4d9db17537 1682 tickstart = HAL_GetTick();
mbed_official 376:cb4d9db17537 1683
mbed_official 376:cb4d9db17537 1684 while((hadc->Instance->CR & ADC_CR_ADSTART) != RESET)
mbed_official 376:cb4d9db17537 1685 {
mbed_official 376:cb4d9db17537 1686 /* Check for the Timeout */
mbed_official 376:cb4d9db17537 1687 if(ADC_STOP_CONVERSION_TIMEOUT != HAL_MAX_DELAY)
mbed_official 376:cb4d9db17537 1688 {
mbed_official 376:cb4d9db17537 1689 if((HAL_GetTick() - tickstart ) > ADC_STOP_CONVERSION_TIMEOUT)
mbed_official 376:cb4d9db17537 1690 {
mbed_official 376:cb4d9db17537 1691 /* Update ADC state machine to error */
mbed_official 376:cb4d9db17537 1692 hadc->State = HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 1693
mbed_official 376:cb4d9db17537 1694 /* Set ADC error code to ADC IP internal error */
mbed_official 376:cb4d9db17537 1695 hadc->ErrorCode |= HAL_ADC_ERROR_INTERNAL;
mbed_official 376:cb4d9db17537 1696
mbed_official 376:cb4d9db17537 1697 return HAL_ERROR;
mbed_official 376:cb4d9db17537 1698 }
mbed_official 376:cb4d9db17537 1699 }
mbed_official 376:cb4d9db17537 1700 }
mbed_official 376:cb4d9db17537 1701 }
mbed_official 376:cb4d9db17537 1702
mbed_official 376:cb4d9db17537 1703 /* Return HAL status */
mbed_official 376:cb4d9db17537 1704 return HAL_OK;
mbed_official 376:cb4d9db17537 1705 }
mbed_official 376:cb4d9db17537 1706
mbed_official 376:cb4d9db17537 1707 /**
mbed_official 376:cb4d9db17537 1708 * @brief DMA transfer complete callback.
mbed_official 376:cb4d9db17537 1709 * @param hdma: pointer to DMA handle.
mbed_official 376:cb4d9db17537 1710 * @retval None
mbed_official 376:cb4d9db17537 1711 */
mbed_official 376:cb4d9db17537 1712 static void ADC_DMAConvCplt(DMA_HandleTypeDef *hdma)
mbed_official 376:cb4d9db17537 1713 {
mbed_official 376:cb4d9db17537 1714 ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 376:cb4d9db17537 1715
mbed_official 376:cb4d9db17537 1716 /* Change ADC state */
mbed_official 376:cb4d9db17537 1717 hadc->State = HAL_ADC_STATE_EOC;
mbed_official 376:cb4d9db17537 1718
mbed_official 376:cb4d9db17537 1719 HAL_ADC_ConvCpltCallback(hadc);
mbed_official 376:cb4d9db17537 1720 }
mbed_official 376:cb4d9db17537 1721
mbed_official 376:cb4d9db17537 1722 /**
mbed_official 376:cb4d9db17537 1723 * @brief DMA half transfer complete callback.
mbed_official 376:cb4d9db17537 1724 * @param hdma: pointer to DMA handle.
mbed_official 376:cb4d9db17537 1725 * @retval None
mbed_official 376:cb4d9db17537 1726 */
mbed_official 376:cb4d9db17537 1727 static void ADC_DMAHalfConvCplt(DMA_HandleTypeDef *hdma)
mbed_official 376:cb4d9db17537 1728 {
mbed_official 376:cb4d9db17537 1729 ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 376:cb4d9db17537 1730
mbed_official 376:cb4d9db17537 1731 /* Conversion complete callback */
mbed_official 376:cb4d9db17537 1732 HAL_ADC_ConvHalfCpltCallback(hadc);
mbed_official 376:cb4d9db17537 1733 }
mbed_official 376:cb4d9db17537 1734
mbed_official 376:cb4d9db17537 1735 /**
mbed_official 376:cb4d9db17537 1736 * @brief DMA error callback
mbed_official 376:cb4d9db17537 1737 * @param hdma: pointer to DMA handle.
mbed_official 376:cb4d9db17537 1738 * @retval None
mbed_official 376:cb4d9db17537 1739 */
mbed_official 376:cb4d9db17537 1740 static void ADC_DMAError(DMA_HandleTypeDef *hdma)
mbed_official 376:cb4d9db17537 1741 {
mbed_official 376:cb4d9db17537 1742 ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 376:cb4d9db17537 1743 hadc->State= HAL_ADC_STATE_ERROR;
mbed_official 376:cb4d9db17537 1744 /* Set ADC error code to DMA error */
mbed_official 376:cb4d9db17537 1745 hadc->ErrorCode |= HAL_ADC_ERROR_DMA;
mbed_official 376:cb4d9db17537 1746 HAL_ADC_ErrorCallback(hadc);
mbed_official 376:cb4d9db17537 1747 }
mbed_official 376:cb4d9db17537 1748
mbed_official 376:cb4d9db17537 1749 /**
mbed_official 490:119543c9f674 1750 * @brief Delay micro seconds
mbed_official 490:119543c9f674 1751 * @param microSecond : delay
mbed_official 490:119543c9f674 1752 * @retval None
mbed_official 490:119543c9f674 1753 */
mbed_official 490:119543c9f674 1754 static void ADC_DelayMicroSecond(uint32_t microSecond)
mbed_official 490:119543c9f674 1755 {
mbed_official 490:119543c9f674 1756 /* Compute number of CPU cycles to wait for */
mbed_official 490:119543c9f674 1757 __IO uint32_t waitLoopIndex = (microSecond * (SystemCoreClock / 1000000));
mbed_official 490:119543c9f674 1758
mbed_official 490:119543c9f674 1759 while(waitLoopIndex != 0)
mbed_official 490:119543c9f674 1760 {
mbed_official 490:119543c9f674 1761 waitLoopIndex--;
mbed_official 490:119543c9f674 1762 }
mbed_official 490:119543c9f674 1763 }
mbed_official 490:119543c9f674 1764
mbed_official 490:119543c9f674 1765 /**
mbed_official 376:cb4d9db17537 1766 * @}
mbed_official 376:cb4d9db17537 1767 */
mbed_official 376:cb4d9db17537 1768
mbed_official 376:cb4d9db17537 1769 #endif /* HAL_ADC_MODULE_ENABLED */
mbed_official 376:cb4d9db17537 1770 /**
mbed_official 376:cb4d9db17537 1771 * @}
mbed_official 376:cb4d9db17537 1772 */
mbed_official 376:cb4d9db17537 1773
mbed_official 376:cb4d9db17537 1774 /**
mbed_official 376:cb4d9db17537 1775 * @}
mbed_official 376:cb4d9db17537 1776 */
mbed_official 376:cb4d9db17537 1777
mbed_official 376:cb4d9db17537 1778 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/