en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_adc_ex.c@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
113:b3775bf36a83 
PWM Fix:Duty 0%??H???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32l0xx_hal_adc_ex.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
mbed_official 113:b3775bf36a83 5 * @version V1.5.0
mbed_official 113:b3775bf36a83 6 * @date 8-January-2016
bogdanm 0:9b334a45a8ff 7 * @brief This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 8 * functionalities of the Analog to Digital Convertor (ADC)
bogdanm 0:9b334a45a8ff 9 * peripheral:
bogdanm 0:9b334a45a8ff 10 * + Start calibration.
bogdanm 0:9b334a45a8ff 11 * + Read the calibration factor.
bogdanm 0:9b334a45a8ff 12 * + Set a calibration factor.
bogdanm 0:9b334a45a8ff 13 *
bogdanm 0:9b334a45a8ff 14 @verbatim
bogdanm 0:9b334a45a8ff 15 ==============================================================================
bogdanm 0:9b334a45a8ff 16 ##### ADC specific features #####
bogdanm 0:9b334a45a8ff 17 ==============================================================================
bogdanm 0:9b334a45a8ff 18 [..]
bogdanm 0:9b334a45a8ff 19 (#) Self calibration.
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21
bogdanm 0:9b334a45a8ff 22 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 23 ==============================================================================
bogdanm 0:9b334a45a8ff 24 [..]
bogdanm 0:9b334a45a8ff 25
bogdanm 0:9b334a45a8ff 26 (#) Call HAL_ADCEx_Calibration_Start() to start calibration
bogdanm 0:9b334a45a8ff 27
bogdanm 0:9b334a45a8ff 28 (#) Read the calibration factor using HAL_ADCEx_Calibration_GetValue()
bogdanm 0:9b334a45a8ff 29
bogdanm 0:9b334a45a8ff 30 (#) User can set a his calibration factor using HAL_ADCEx_Calibration_SetValue()
bogdanm 0:9b334a45a8ff 31
bogdanm 0:9b334a45a8ff 32 @endverbatim
bogdanm 0:9b334a45a8ff 33 ******************************************************************************
bogdanm 0:9b334a45a8ff 34 * @attention
bogdanm 0:9b334a45a8ff 35 *
mbed_official 113:b3775bf36a83 36 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 37 *
bogdanm 0:9b334a45a8ff 38 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 39 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 40 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 41 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 42 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 43 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 44 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 45 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 46 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 47 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 48 *
bogdanm 0:9b334a45a8ff 49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 50 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 52 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 55 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 56 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 57 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 58 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 59 *
bogdanm 0:9b334a45a8ff 60 ******************************************************************************
bogdanm 0:9b334a45a8ff 61 */
bogdanm 0:9b334a45a8ff 62
bogdanm 0:9b334a45a8ff 63 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 64 #include "stm32l0xx_hal.h"
bogdanm 0:9b334a45a8ff 65
bogdanm 0:9b334a45a8ff 66 /** @addtogroup STM32L0xx_HAL_Driver
bogdanm 0:9b334a45a8ff 67 * @{
bogdanm 0:9b334a45a8ff 68 */
bogdanm 0:9b334a45a8ff 69
mbed_official 113:b3775bf36a83 70 #ifdef HAL_ADC_MODULE_ENABLED
mbed_official 113:b3775bf36a83 71
bogdanm 0:9b334a45a8ff 72 /** @addtogroup ADCEx
bogdanm 0:9b334a45a8ff 73 * @brief ADC driver modules
bogdanm 0:9b334a45a8ff 74 * @{
bogdanm 0:9b334a45a8ff 75 */
bogdanm 0:9b334a45a8ff 76
bogdanm 0:9b334a45a8ff 77 /* Private typedef -----------------------------------------------------------*/
mbed_official 113:b3775bf36a83 78
bogdanm 0:9b334a45a8ff 79 /* Private define ------------------------------------------------------------*/
mbed_official 113:b3775bf36a83 80
mbed_official 113:b3775bf36a83 81 /* Fixed timeout values for ADC calibration, enable settling time, disable */
mbed_official 113:b3775bf36a83 82 /* settling time. */
mbed_official 113:b3775bf36a83 83 /* Values defined to be higher than worst cases: low clock frequency, */
mbed_official 113:b3775bf36a83 84 /* maximum prescaler. */
mbed_official 113:b3775bf36a83 85 /* Unit: ms */
mbed_official 113:b3775bf36a83 86 #define ADC_CALIBRATION_TIMEOUT 10
mbed_official 113:b3775bf36a83 87
mbed_official 113:b3775bf36a83 88 /* Delay for VREFINT stabilization time. */
mbed_official 113:b3775bf36a83 89 /* Internal reference startup time max value is 3ms (refer to device datasheet, parameter TVREFINT). */
mbed_official 113:b3775bf36a83 90 /* Unit: ms */
mbed_official 113:b3775bf36a83 91 #define SYSCFG_BUF_VREFINT_ENABLE_TIMEOUT ((uint32_t) 3)
mbed_official 113:b3775bf36a83 92
mbed_official 113:b3775bf36a83 93 /* Delay for TEMPSENSOR stabilization time. */
mbed_official 113:b3775bf36a83 94 /* Temperature sensor startup time max value is 10µs (refer to device datasheet, parameter tSTART). */
mbed_official 113:b3775bf36a83 95 /* Unit: ms */
mbed_official 113:b3775bf36a83 96 #define SYSCFG_BUF_TEMPSENSOR_ENABLE_TIMEOUT ((uint32_t) 1)
mbed_official 113:b3775bf36a83 97
bogdanm 0:9b334a45a8ff 98 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 99 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 100 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 101 /* Private functions ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 102
bogdanm 0:9b334a45a8ff 103
mbed_official 113:b3775bf36a83 104 /** @addtogroup ADCEx_Exported_Functions
bogdanm 0:9b334a45a8ff 105 * @brief ADC Extended features functions
bogdanm 0:9b334a45a8ff 106 *
bogdanm 0:9b334a45a8ff 107 @verbatim
bogdanm 0:9b334a45a8ff 108 ===============================================================================
bogdanm 0:9b334a45a8ff 109 ##### ADC Extended features functions #####
bogdanm 0:9b334a45a8ff 110 ===============================================================================
bogdanm 0:9b334a45a8ff 111 [..]
bogdanm 0:9b334a45a8ff 112 This subsection provides functions allowing to:
bogdanm 0:9b334a45a8ff 113 (+) Start calibration.
bogdanm 0:9b334a45a8ff 114 (+) Get calibration factor.
bogdanm 0:9b334a45a8ff 115 (+) Set calibration factor.
mbed_official 113:b3775bf36a83 116 (+) Enable VREFInt.
mbed_official 113:b3775bf36a83 117 (+) Disable VREFInt.
mbed_official 113:b3775bf36a83 118 (+) Enable VREFInt TempSensor.
mbed_official 113:b3775bf36a83 119 (+) Disable VREFInt TempSensor.
bogdanm 0:9b334a45a8ff 120
bogdanm 0:9b334a45a8ff 121 @endverbatim
bogdanm 0:9b334a45a8ff 122 * @{
bogdanm 0:9b334a45a8ff 123 */
bogdanm 0:9b334a45a8ff 124
mbed_official 113:b3775bf36a83 125 /** @addtogroup ADCEx_Exported_Functions_Group3
mbed_official 113:b3775bf36a83 126 * @{
mbed_official 113:b3775bf36a83 127 */
bogdanm 0:9b334a45a8ff 128
bogdanm 0:9b334a45a8ff 129 /**
bogdanm 0:9b334a45a8ff 130 * @brief Start an automatic calibration
bogdanm 0:9b334a45a8ff 131 * @param hadc: pointer to a ADC_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 132 * the configuration information for the specified ADC.
bogdanm 0:9b334a45a8ff 133 * @param SingleDiff: Selection of single-ended or differential input
bogdanm 0:9b334a45a8ff 134 * This parameter can be only of the following values:
bogdanm 0:9b334a45a8ff 135 * @arg ADC_SINGLE_ENDED: Channel in mode input single ended
bogdanm 0:9b334a45a8ff 136 * @retval HAL status
bogdanm 0:9b334a45a8ff 137 */
bogdanm 0:9b334a45a8ff 138 HAL_StatusTypeDef HAL_ADCEx_Calibration_Start(ADC_HandleTypeDef* hadc, uint32_t SingleDiff)
bogdanm 0:9b334a45a8ff 139 {
mbed_official 113:b3775bf36a83 140 HAL_StatusTypeDef tmp_hal_status = HAL_OK;
mbed_official 113:b3775bf36a83 141 uint32_t tickstart=0;
bogdanm 0:9b334a45a8ff 142
bogdanm 0:9b334a45a8ff 143 /* Check the parameters */
bogdanm 0:9b334a45a8ff 144 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
bogdanm 0:9b334a45a8ff 145
bogdanm 0:9b334a45a8ff 146 /* Process locked */
bogdanm 0:9b334a45a8ff 147 __HAL_LOCK(hadc);
mbed_official 113:b3775bf36a83 148
mbed_official 113:b3775bf36a83 149 /* Calibration prerequisite: ADC must be disabled. */
mbed_official 113:b3775bf36a83 150 if (ADC_IS_ENABLE(hadc) == RESET)
bogdanm 0:9b334a45a8ff 151 {
mbed_official 113:b3775bf36a83 152 /* Set ADC state */
mbed_official 113:b3775bf36a83 153 ADC_STATE_CLR_SET(hadc->State,
mbed_official 113:b3775bf36a83 154 HAL_ADC_STATE_REG_BUSY,
mbed_official 113:b3775bf36a83 155 HAL_ADC_STATE_BUSY_INTERNAL);
bogdanm 0:9b334a45a8ff 156
mbed_official 113:b3775bf36a83 157 /* Start ADC calibration */
mbed_official 113:b3775bf36a83 158 hadc->Instance->CR |= ADC_CR_ADCAL;
mbed_official 113:b3775bf36a83 159
bogdanm 0:9b334a45a8ff 160 tickstart = HAL_GetTick();
bogdanm 0:9b334a45a8ff 161
mbed_official 113:b3775bf36a83 162 /* Wait for calibration completion */
mbed_official 113:b3775bf36a83 163 while(HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADCAL))
bogdanm 0:9b334a45a8ff 164 {
mbed_official 113:b3775bf36a83 165 if((HAL_GetTick() - tickstart) > ADC_CALIBRATION_TIMEOUT)
bogdanm 0:9b334a45a8ff 166 {
mbed_official 113:b3775bf36a83 167 /* Update ADC state machine to error */
mbed_official 113:b3775bf36a83 168 ADC_STATE_CLR_SET(hadc->State,
mbed_official 113:b3775bf36a83 169 HAL_ADC_STATE_BUSY_INTERNAL,
mbed_official 113:b3775bf36a83 170 HAL_ADC_STATE_ERROR_INTERNAL);
bogdanm 0:9b334a45a8ff 171
bogdanm 0:9b334a45a8ff 172 /* Process unlocked */
bogdanm 0:9b334a45a8ff 173 __HAL_UNLOCK(hadc);
bogdanm 0:9b334a45a8ff 174
mbed_official 113:b3775bf36a83 175 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 176 }
bogdanm 0:9b334a45a8ff 177 }
mbed_official 113:b3775bf36a83 178
mbed_official 113:b3775bf36a83 179 /* Set ADC state */
mbed_official 113:b3775bf36a83 180 ADC_STATE_CLR_SET(hadc->State,
mbed_official 113:b3775bf36a83 181 HAL_ADC_STATE_BUSY_INTERNAL,
mbed_official 113:b3775bf36a83 182 HAL_ADC_STATE_READY);
mbed_official 113:b3775bf36a83 183 }
mbed_official 113:b3775bf36a83 184 else
mbed_official 113:b3775bf36a83 185 {
mbed_official 113:b3775bf36a83 186 /* Update ADC state machine to error */
mbed_official 113:b3775bf36a83 187 SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
mbed_official 113:b3775bf36a83 188
mbed_official 113:b3775bf36a83 189 tmp_hal_status = HAL_ERROR;
mbed_official 113:b3775bf36a83 190 }
bogdanm 0:9b334a45a8ff 191
bogdanm 0:9b334a45a8ff 192 /* Process unlocked */
bogdanm 0:9b334a45a8ff 193 __HAL_UNLOCK(hadc);
bogdanm 0:9b334a45a8ff 194
bogdanm 0:9b334a45a8ff 195 /* Return function status */
mbed_official 113:b3775bf36a83 196 return tmp_hal_status;
bogdanm 0:9b334a45a8ff 197 }
bogdanm 0:9b334a45a8ff 198
mbed_official 113:b3775bf36a83 199
bogdanm 0:9b334a45a8ff 200 /**
bogdanm 0:9b334a45a8ff 201 * @brief Get the calibration factor.
bogdanm 0:9b334a45a8ff 202 * @param hadc: ADC handle.
bogdanm 0:9b334a45a8ff 203 * @param SingleDiff: This parameter can be only:
bogdanm 0:9b334a45a8ff 204 * @arg ADC_SINGLE_ENDED: Channel in mode input single ended.
bogdanm 0:9b334a45a8ff 205 * @retval Calibration value.
bogdanm 0:9b334a45a8ff 206 */
bogdanm 0:9b334a45a8ff 207 uint32_t HAL_ADCEx_Calibration_GetValue(ADC_HandleTypeDef* hadc, uint32_t SingleDiff)
bogdanm 0:9b334a45a8ff 208 {
bogdanm 0:9b334a45a8ff 209 /* Check the parameters */
bogdanm 0:9b334a45a8ff 210 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
bogdanm 0:9b334a45a8ff 211 assert_param(IS_ADC_SINGLE_DIFFERENTIAL(SingleDiff));
bogdanm 0:9b334a45a8ff 212
bogdanm 0:9b334a45a8ff 213 /* Return the ADC calibration value */
bogdanm 0:9b334a45a8ff 214 return ((hadc->Instance->CALFACT) & 0x0000007F);
bogdanm 0:9b334a45a8ff 215 }
bogdanm 0:9b334a45a8ff 216
bogdanm 0:9b334a45a8ff 217 /**
bogdanm 0:9b334a45a8ff 218 * @brief Set the calibration factor to overwrite automatic conversion result.
bogdanm 0:9b334a45a8ff 219 * ADC must be enabled and no conversion is ongoing.
bogdanm 0:9b334a45a8ff 220 * @param hadc: ADC handle
bogdanm 0:9b334a45a8ff 221 * @param SingleDiff: This parameter can be only:
bogdanm 0:9b334a45a8ff 222 * @arg ADC_SINGLE_ENDED: Channel in mode input single ended.
bogdanm 0:9b334a45a8ff 223 * @param CalibrationFactor: Calibration factor (coded on 7 bits maximum)
bogdanm 0:9b334a45a8ff 224 * @retval HAL state
bogdanm 0:9b334a45a8ff 225 */
bogdanm 0:9b334a45a8ff 226 HAL_StatusTypeDef HAL_ADCEx_Calibration_SetValue(ADC_HandleTypeDef* hadc, uint32_t SingleDiff, uint32_t CalibrationFactor)
bogdanm 0:9b334a45a8ff 227 {
mbed_official 113:b3775bf36a83 228 HAL_StatusTypeDef tmp_hal_status = HAL_OK;
bogdanm 0:9b334a45a8ff 229
bogdanm 0:9b334a45a8ff 230 /* Check the parameters */
bogdanm 0:9b334a45a8ff 231 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
bogdanm 0:9b334a45a8ff 232 assert_param(IS_ADC_SINGLE_DIFFERENTIAL(SingleDiff));
bogdanm 0:9b334a45a8ff 233 assert_param(IS_ADC_CALFACT(CalibrationFactor));
bogdanm 0:9b334a45a8ff 234
bogdanm 0:9b334a45a8ff 235 /* Process locked */
bogdanm 0:9b334a45a8ff 236 __HAL_LOCK(hadc);
bogdanm 0:9b334a45a8ff 237
bogdanm 0:9b334a45a8ff 238 /* Verification of hardware constraints before modifying the calibration */
bogdanm 0:9b334a45a8ff 239 /* factors register: ADC must be enabled, no conversion on going. */
bogdanm 0:9b334a45a8ff 240 if ( (ADC_IS_ENABLE(hadc) != RESET) &&
mbed_official 113:b3775bf36a83 241 (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET) )
bogdanm 0:9b334a45a8ff 242 {
bogdanm 0:9b334a45a8ff 243 /* Set the selected ADC calibration value */
bogdanm 0:9b334a45a8ff 244 hadc->Instance->CALFACT &= ~ADC_CALFACT_CALFACT;
bogdanm 0:9b334a45a8ff 245 hadc->Instance->CALFACT |= CalibrationFactor;
bogdanm 0:9b334a45a8ff 246 }
bogdanm 0:9b334a45a8ff 247 else
bogdanm 0:9b334a45a8ff 248 {
bogdanm 0:9b334a45a8ff 249 /* Update ADC state machine to error */
mbed_official 113:b3775bf36a83 250 SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_INTERNAL);
mbed_official 113:b3775bf36a83 251 /* Update ADC state machine to error */
mbed_official 113:b3775bf36a83 252 SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
bogdanm 0:9b334a45a8ff 253
bogdanm 0:9b334a45a8ff 254 /* Update ADC state machine to error */
mbed_official 113:b3775bf36a83 255 tmp_hal_status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 256 }
bogdanm 0:9b334a45a8ff 257
bogdanm 0:9b334a45a8ff 258 /* Process unlocked */
bogdanm 0:9b334a45a8ff 259 __HAL_UNLOCK(hadc);
bogdanm 0:9b334a45a8ff 260
bogdanm 0:9b334a45a8ff 261 /* Return function status */
mbed_official 113:b3775bf36a83 262 return tmp_hal_status;
bogdanm 0:9b334a45a8ff 263 }
bogdanm 0:9b334a45a8ff 264
bogdanm 0:9b334a45a8ff 265 /**
mbed_official 113:b3775bf36a83 266 * @brief Enables the buffer of Vrefint for the ADC, required when device is in mode low-power (low-power run, low-power sleep or stop mode)
mbed_official 113:b3775bf36a83 267 * This function must be called before function HAL_ADC_Init()
mbed_official 113:b3775bf36a83 268 * (in case of previous ADC operations: function HAL_ADC_DeInit() must be called first)
mbed_official 113:b3775bf36a83 269 * For more details on procedure and buffer current consumption, refer to device reference manual.
mbed_official 113:b3775bf36a83 270 * @note This is functional only if the LOCK is not set.
bogdanm 0:9b334a45a8ff 271 * @retval None
mbed_official 113:b3775bf36a83 272 */
mbed_official 113:b3775bf36a83 273 HAL_StatusTypeDef HAL_ADCEx_EnableVREFINT(void)
bogdanm 0:9b334a45a8ff 274 {
mbed_official 113:b3775bf36a83 275 uint32_t tickstart = 0;
mbed_official 113:b3775bf36a83 276
mbed_official 113:b3775bf36a83 277 /* Enable the Buffer for the ADC by setting EN_VREFINT bit and the ENBUF_SENSOR_ADC in the CFGR3 register */
mbed_official 113:b3775bf36a83 278 SET_BIT(SYSCFG->CFGR3, (SYSCFG_CFGR3_ENBUF_VREFINT_ADC | SYSCFG_CFGR3_EN_VREFINT));
mbed_official 113:b3775bf36a83 279
mbed_official 113:b3775bf36a83 280 /* Wait for Vrefint buffer effectively enabled */
mbed_official 113:b3775bf36a83 281 /* Get tick count */
mbed_official 113:b3775bf36a83 282 tickstart = HAL_GetTick();
mbed_official 113:b3775bf36a83 283
mbed_official 113:b3775bf36a83 284 while(HAL_IS_BIT_CLR(SYSCFG->CFGR3, SYSCFG_CFGR3_VREFINT_ADC_RDYF))
mbed_official 113:b3775bf36a83 285 {
mbed_official 113:b3775bf36a83 286 if((HAL_GetTick() - tickstart) > SYSCFG_BUF_VREFINT_ENABLE_TIMEOUT)
mbed_official 113:b3775bf36a83 287 {
mbed_official 113:b3775bf36a83 288 return HAL_ERROR;
mbed_official 113:b3775bf36a83 289 }
mbed_official 113:b3775bf36a83 290 }
mbed_official 113:b3775bf36a83 291
mbed_official 113:b3775bf36a83 292 return HAL_OK;
bogdanm 0:9b334a45a8ff 293 }
bogdanm 0:9b334a45a8ff 294
bogdanm 0:9b334a45a8ff 295 /**
bogdanm 0:9b334a45a8ff 296 * @brief Disables the Buffer Vrefint for the ADC.
bogdanm 0:9b334a45a8ff 297 * @note This is functional only if the LOCK is not set.
bogdanm 0:9b334a45a8ff 298 * @retval None
bogdanm 0:9b334a45a8ff 299 */
bogdanm 0:9b334a45a8ff 300 void HAL_ADCEx_DisableVREFINT(void)
bogdanm 0:9b334a45a8ff 301 {
bogdanm 0:9b334a45a8ff 302 /* Disable the Vrefint by resetting EN_VREFINT bit and the ENBUF_SENSOR_ADC in the CFGR3 register */
bogdanm 0:9b334a45a8ff 303 CLEAR_BIT(SYSCFG->CFGR3, (SYSCFG_CFGR3_ENBUF_VREFINT_ADC | SYSCFG_CFGR3_EN_VREFINT));
bogdanm 0:9b334a45a8ff 304 }
bogdanm 0:9b334a45a8ff 305
bogdanm 0:9b334a45a8ff 306 /**
mbed_official 113:b3775bf36a83 307 * @brief Enables the buffer of temperature sensor for the ADC, required when device is in mode low-power (low-power run, low-power sleep or stop mode)
mbed_official 113:b3775bf36a83 308 * This function must be called before function HAL_ADC_Init()
mbed_official 113:b3775bf36a83 309 * (in case of previous ADC operations: function HAL_ADC_DeInit() must be called first)
mbed_official 113:b3775bf36a83 310 * For more details on procedure and buffer current consumption, refer to device reference manual.
mbed_official 113:b3775bf36a83 311 * @note This is functional only if the LOCK is not set.
mbed_official 113:b3775bf36a83 312 * @retval None
mbed_official 113:b3775bf36a83 313 */
mbed_official 113:b3775bf36a83 314 HAL_StatusTypeDef HAL_ADCEx_EnableVREFINTTempSensor(void)
bogdanm 0:9b334a45a8ff 315 {
mbed_official 113:b3775bf36a83 316 uint32_t tickstart = 0;
mbed_official 113:b3775bf36a83 317
mbed_official 113:b3775bf36a83 318 /* Enable the Buffer for the ADC by setting EN_VREFINT bit and the ENBUF_SENSOR_ADC in the CFGR3 register */
mbed_official 113:b3775bf36a83 319 SET_BIT(SYSCFG->CFGR3, (SYSCFG_CFGR3_ENBUF_SENSOR_ADC | SYSCFG_CFGR3_EN_VREFINT));
mbed_official 113:b3775bf36a83 320
mbed_official 113:b3775bf36a83 321 /* Wait for Vrefint buffer effectively enabled */
mbed_official 113:b3775bf36a83 322 /* Get tick count */
mbed_official 113:b3775bf36a83 323 tickstart = HAL_GetTick();
mbed_official 113:b3775bf36a83 324
mbed_official 113:b3775bf36a83 325 while(HAL_IS_BIT_CLR(SYSCFG->CFGR3, SYSCFG_CFGR3_VREFINT_ADC_RDYF))
mbed_official 113:b3775bf36a83 326 {
mbed_official 113:b3775bf36a83 327 if((HAL_GetTick() - tickstart) > SYSCFG_BUF_TEMPSENSOR_ENABLE_TIMEOUT)
mbed_official 113:b3775bf36a83 328 {
mbed_official 113:b3775bf36a83 329 return HAL_ERROR;
mbed_official 113:b3775bf36a83 330 }
mbed_official 113:b3775bf36a83 331 }
mbed_official 113:b3775bf36a83 332
mbed_official 113:b3775bf36a83 333 return HAL_OK;
bogdanm 0:9b334a45a8ff 334 }
bogdanm 0:9b334a45a8ff 335
bogdanm 0:9b334a45a8ff 336 /**
bogdanm 0:9b334a45a8ff 337 * @brief Disables the VEREFINT and Sensor for the ADC.
bogdanm 0:9b334a45a8ff 338 * @note This is functional only if the LOCK is not set.
bogdanm 0:9b334a45a8ff 339 * @retval None
bogdanm 0:9b334a45a8ff 340 */
bogdanm 0:9b334a45a8ff 341 void HAL_ADCEx_DisableVREFINTTempSensor(void)
bogdanm 0:9b334a45a8ff 342 {
bogdanm 0:9b334a45a8ff 343 /* Disable the Vrefint by resetting EN_VREFINT bit and the ENBUF_SENSOR_ADC in the CFGR3 register */
bogdanm 0:9b334a45a8ff 344 CLEAR_BIT(SYSCFG->CFGR3, (SYSCFG_CFGR3_ENBUF_SENSOR_ADC | SYSCFG_CFGR3_EN_VREFINT));
bogdanm 0:9b334a45a8ff 345 }
bogdanm 0:9b334a45a8ff 346
bogdanm 0:9b334a45a8ff 347 /**
bogdanm 0:9b334a45a8ff 348 * @}
bogdanm 0:9b334a45a8ff 349 */
bogdanm 0:9b334a45a8ff 350
bogdanm 0:9b334a45a8ff 351 /**
bogdanm 0:9b334a45a8ff 352 * @}
bogdanm 0:9b334a45a8ff 353 */
bogdanm 0:9b334a45a8ff 354
bogdanm 0:9b334a45a8ff 355 /**
bogdanm 0:9b334a45a8ff 356 * @}
mbed_official 113:b3775bf36a83 357 */
mbed_official 113:b3775bf36a83 358
mbed_official 113:b3775bf36a83 359 #endif /* HAL_ADC_MODULE_ENABLED */
mbed_official 113:b3775bf36a83 360 /**
mbed_official 113:b3775bf36a83 361 * @}
bogdanm 0:9b334a45a8ff 362 */
bogdanm 0:9b334a45a8ff 363
bogdanm 0:9b334a45a8ff 364 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/