tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_adc_ex.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32l1xx_hal_adc_ex.c
   4   * @author  MCD Application Team
   5   * @version V1.0.0
   6   * @date    5-September-2014
   7   * @brief   This file provides firmware functions to manage the following
   8   *          functionalities of the Analog to Digital Convertor (ADC)
   9   *          peripheral:
  10   *           + Initialization and de-initialization functions
  11   *             ++ Initialization and Configuration of ADC
  12   *           + Operation functions
  13   *             ++ Start, stop, get result of conversions of regular
  14   *             group, using 3 possible modes: polling, interruption or DMA.
  15   *           + Control functions
  16   *             ++ Analog Watchdog configuration
  17   *             ++ Channels configuration on regular group
  18   *           + State functions
  19   *             ++ ADC state machine management
  20   *             ++ Interrupts and flags management
  21   *          Other functions (generic functions) are available in file
  22   *          "stm32l1xx_hal_adc.c".
  23   *
  24   @verbatim
  25   ==============================================================================
  26                      ##### How to use this driver #####
  27   ==============================================================================
  28     [..]
  29
  30      (#) Activate the ADC peripheral using one of the start functions:
  31          HAL_ADCEx_InjectedStart(), HAL_ADCEx_InjectedStart_IT().
  32
  33      *** Channels configuration to injected group ***
  34      ================================================
  35      [..]
  36        (+) To configure the ADC Injected channels group features, use
  37            HAL_ADCEx_InjectedConfigChannel() functions.
  38        (+) To activate the continuous mode, use the HAL_ADC_Init() function.
  39        (+) To read the ADC converted values, use the HAL_ADCEx_InjectedGetValue()
  40            function.
  41
  42     @endverbatim
  43   ******************************************************************************
  44   * @attention
  45   *
  46   * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  47   *
  48   * Redistribution and use in source and binary forms, with or without modification,
  49   * are permitted provided that the following conditions are met:
  50   *   1. Redistributions of source code must retain the above copyright notice,
  51   *      this list of conditions and the following disclaimer.
  52   *   2. Redistributions in binary form must reproduce the above copyright notice,
  53   *      this list of conditions and the following disclaimer in the documentation
  54   *      and/or other materials provided with the distribution.
  55   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  56   *      may be used to endorse or promote products derived from this software
  57   *      without specific prior written permission.
  58   *
  59   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  60   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  61   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  62   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  63   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  64   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  65   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  66   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  67   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  68   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  69   *
  70   ******************************************************************************
  71   */
  72
  73 /* Includes ------------------------------------------------------------------*/
  74 #include "stm32l1xx_hal.h"
  75
  76 /** @addtogroup STM32L1xx_HAL_Driver
  77   * @{
  78   */
  79
  80 /** @defgroup ADCEx ADCEx
  81   * @brief ADC HAL module driver
  82   * @{
  83   */
  84
  85 #ifdef HAL_ADC_MODULE_ENABLED
  86
  87 /* Private typedef -----------------------------------------------------------*/
  88 /* Private define ------------------------------------------------------------*/
  89 /** @defgroup ADCEx_Private_Constants ADCEx Private Constants
  90   * @{
  91   */
  92
  93   /* ADC conversion cycles (unit: ADC clock cycles)                           */
  94   /* (selected sampling time + conversion time of 12 ADC clock cycles, with   */
  95   /* resolution 12 bits)                                                      */
  96   #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_4CYCLE5   ((uint32_t) 16)
  97   #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_9CYCLES   ((uint32_t) 21)
  98   #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_16CYCLES  ((uint32_t) 28)
  99   #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_24CYCLES  ((uint32_t) 36)
 100   #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_48CYCLES  ((uint32_t) 60)
 101   #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_96CYCLES  ((uint32_t)108)
 102   #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_192CYCLES ((uint32_t)204)
 103   #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_384CYCLES ((uint32_t)396)
 104 /**
 105   * @}
 106   */
 107
 108 /* Private macro -------------------------------------------------------------*/
 109 /* Private variables ---------------------------------------------------------*/
 110 /* Private function prototypes -----------------------------------------------*/
 111 /* Private functions ---------------------------------------------------------*/
 112
 113 /** @defgroup ADCEx_Exported_Functions ADCEx Exported Functions
 114   * @{
 115   */
 116
 117 /** @defgroup ADCEx_Exported_Functions_Group1 Extended Initialization/de-initialization functions
 118  *  @brief    Extended Initialization and Configuration functions
 119  *
 120 @verbatim
 121  ===============================================================================
 122                       ##### IO operation functions #####
 123  ===============================================================================
 124     [..]  This section provides functions allowing to:
 125       (+) Start conversion of injected group.
 126       (+) Stop conversion of injected group.
 127       (+) Poll for conversion complete on injected group.
 128       (+) Get result of injected channel conversion.
 129       (+) Start conversion of injected group and enable interruptions.
 130       (+) Stop conversion of injected group and disable interruptions.
 131
 132 @endverbatim
 133   * @{
 134   */
 135
 136 /**
 137   * @brief  Enables ADC, starts conversion of injected group.
 138   *         Interruptions enabled in this function: None.
 139   * @param  hadc: ADC handle
 140   * @retval HAL status
 141   */
 142 HAL_StatusTypeDef HAL_ADCEx_InjectedStart(ADC_HandleTypeDef* hadc)
 143 {
 144   HAL_StatusTypeDef tmpHALStatus = HAL_OK;
 145
 146   /* Check the parameters */
 147   assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
 148
 149   /* Process locked */
 150   __HAL_LOCK(hadc);
 151
 152   /* Enable the ADC peripheral */
 153   tmpHALStatus = ADC_Enable(hadc);
 154
 155   /* Start conversion if ADC is effectively enabled */
 156   if (tmpHALStatus != HAL_ERROR)
 157   {
 158     /* Check if a regular conversion is ongoing */
 159     if(hadc->State == HAL_ADC_STATE_BUSY_REG)
 160     {
 161       /* Change ADC state */
 162       hadc->State = HAL_ADC_STATE_BUSY_INJ_REG;
 163     }
 164     else
 165     {
 166       /* Change ADC state */
 167       hadc->State = HAL_ADC_STATE_BUSY_INJ;
 168     }
 169
 170     /* Set ADC error code to none */
 171     __HAL_ADC_CLEAR_ERRORCODE(hadc);
 172
 173     /* Clear injected group conversion flag */
 174     /* (To ensure of no unknown state from potential previous ADC operations) */
 175     __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JEOC);
 176
 177     /* Start conversion of injected group if software start has been selected */
 178     /* and if automatic injected conversion is disabled.                      */
 179     /* If external trigger has been selected, conversion will start at next   */
 180     /* trigger event.                                                         */
 181     /* If automatic injected conversion is enabled, conversion will start     */
 182     /* after next regular group conversion.                                   */
 183     if (__HAL_ADC_IS_SOFTWARE_START_INJECTED(hadc)        &&
 184         HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO)  )
 185     {
 186       /* Enable ADC software conversion for injected channels */
 187       SET_BIT(hadc->Instance->CR2, ADC_CR2_JSWSTART);
 188     }
 189   }
 190
 191   /* Process unlocked */
 192   __HAL_UNLOCK(hadc);
 193
 194   /* Return function status */
 195   return tmpHALStatus;
 196 }
 197
 198 /**
 199   * @brief  Stop conversion of injected channels. Disable ADC peripheral if
 200   *         no regular conversion is on going.
 201   * @note   If ADC must be disabled with this function and if regular conversion
 202   *         is on going, function HAL_ADC_Stop must be used preliminarily.
 203   * @note   In case of auto-injection mode, HAL_ADC_Stop must be used.
 204   * @param  hadc: ADC handle
 205   * @retval None
 206   */
 207 HAL_StatusTypeDef HAL_ADCEx_InjectedStop(ADC_HandleTypeDef* hadc)
 208 {
 209   HAL_StatusTypeDef tmpHALStatus = HAL_OK;
 210
 211   /* Check the parameters */
 212   assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
 213
 214   /* Process locked */
 215   __HAL_LOCK(hadc);
 216
 217   /* Stop potential conversion and disable ADC peripheral                     */
 218   /* Conditioned to:                                                          */
 219   /* - No conversion on the other group (regular group) is intended to        */
 220   /*   continue (injected and regular groups stop conversion and ADC disable  */
 221   /*   are common)                                                            */
 222   /* - In case of auto-injection mode, HAL_ADC_Stop must be used.             */
 223     if((hadc->State != HAL_ADC_STATE_BUSY_REG)            &&
 224        (hadc->State != HAL_ADC_STATE_BUSY_INJ_REG)        &&
 225        HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO)   )
 226   {
 227     /* Stop potential conversion on going, on regular and injected groups */
 228     /* Disable ADC peripheral */
 229     tmpHALStatus = ADC_ConversionStop_Disable(hadc);
 230
 231     /* Check if ADC is effectively disabled */
 232     if (tmpHALStatus != HAL_ERROR)
 233     {
 234       /* Change ADC state */
 235       hadc->State = HAL_ADC_STATE_READY;
 236     }
 237   }
 238   else
 239   {
 240     /* Update ADC state machine to error */
 241     hadc->State = HAL_ADC_STATE_ERROR;
 242
 243     tmpHALStatus = HAL_ERROR;
 244   }
 245
 246   /* Process unlocked */
 247   __HAL_UNLOCK(hadc);
 248
 249   /* Return function status */
 250   return tmpHALStatus;
 251 }
 252
 253 /**
 254   * @brief  Wait for injected group conversion to be completed.
 255   * @param  hadc: ADC handle
 256   * @param  Timeout: Timeout value in millisecond.
 257   * @retval HAL status
 258   */
 259 HAL_StatusTypeDef HAL_ADCEx_InjectedPollForConversion(ADC_HandleTypeDef* hadc, uint32_t Timeout)
 260 {
 261   uint32_t tickstart;
 262
 263   /* Variables for polling in case of scan mode enabled and polling for each  */
 264   /* conversion.                                                              */
 265   /* Note: Variable "conversion_timeout_cpu_cycles" set to offset 28 CPU      */
 266   /* cycles to compensate number of CPU cycles for processing of variable     */
 267   /* "conversion_timeout_cpu_cycles_max"                                      */
 268   uint32_t conversion_timeout_cpu_cycles = 28;
 269   uint32_t conversion_timeout_cpu_cycles_max = 0;
 270
 271   /* Check the parameters */
 272   assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
 273
 274   /* Get timeout */
 275   tickstart = HAL_GetTick();
 276
 277   /* Polling for end of conversion: differentiation if single/sequence        */
 278   /* conversion.                                                              */
 279   /* For injected group, flag JEOC is set only at the end of the sequence,    */
 280   /* not for each conversion within the sequence.                             */
 281   /* If setting "EOCSelection" is set to poll for each single conversion,     */
 282   /* management of polling depends on setting of injected group sequencer:    */
 283   /*  - If single conversion for injected group (scan mode disabled or        */
 284   /*    InjectedNbrOfConversion ==1), flag JEOC is used to determine the      */
 285   /*    conversion completion.                                                */
 286   /*  - If sequence conversion for injected group (scan mode enabled and      */
 287   /*    InjectedNbrOfConversion >=2), flag JEOC is set only at the end of the */
 288   /*    sequence.                                                             */
 289   /*    To poll for each conversion, the maximum conversion time is computed  */
 290   /*    from ADC conversion time (selected sampling time + conversion time of */
 291   /*    12 ADC clock cycles) and APB2/ADC clock prescalers (depending on      */
 292   /*    settings, conversion time range can vary from 8 to several thousands  */
 293   /*    of CPU cycles).                                                       */
 294
 295   /* Note: On STM32L1, setting "EOCSelection" is related to regular group     */
 296   /*       only, by hardware. For compatibility with other STM32 devices,     */
 297   /*       this setting is related also to injected group by software.        */
 298   if (((hadc->Instance->JSQR & ADC_JSQR_JL) == RESET) ||
 299       (hadc->Init.EOCSelection != EOC_SINGLE_CONV)      )
 300   {
 301     /* Wait until End of Conversion flag is raised */
 302     while(HAL_IS_BIT_CLR(hadc->Instance->SR, ADC_FLAG_JEOC))
 303     {
 304       /* Check if timeout is disabled (set to infinite wait) */
 305       if(Timeout != HAL_MAX_DELAY)
 306       {
 307         if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
 308         {
 309           /* Update ADC state machine to timeout */
 310           hadc->State = HAL_ADC_STATE_TIMEOUT;
 311
 312           /* Process unlocked */
 313           __HAL_UNLOCK(hadc);
 314
 315           return HAL_ERROR;
 316         }
 317       }
 318     }
 319   }
 320   else
 321   {
 322     /* Computation of CPU cycles corresponding to ADC conversion cycles.      */
 323     /* Retrieve ADC clock prescaler and ADC maximum conversion cycles on all  */
 324     /* channels.                                                              */
 325     conversion_timeout_cpu_cycles_max = __ADC_GET_CLOCK_PRESCALER_DECIMAL(hadc);
 326     conversion_timeout_cpu_cycles_max *= __ADC_CONVCYCLES_MAX_RANGE(hadc);
 327
 328     /* Poll with maximum conversion time */
 329     while(conversion_timeout_cpu_cycles < conversion_timeout_cpu_cycles_max)
 330     {
 331       /* Check if timeout is disabled (set to infinite wait) */
 332       if(Timeout != HAL_MAX_DELAY)
 333       {
 334         if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
 335         {
 336           /* Update ADC state machine to timeout */
 337           hadc->State = HAL_ADC_STATE_TIMEOUT;
 338
 339           /* Process unlocked */
 340           __HAL_UNLOCK(hadc);
 341
 342           return HAL_ERROR;
 343         }
 344       }
 345       conversion_timeout_cpu_cycles ++;
 346     }
 347   }
 348
 349   /* Clear end of conversion flag of injected group if low power feature      */
 350   /* "Auto Wait" is disabled, to not interfere with this feature until data   */
 351   /* register is read using function HAL_ADCEx_InjectedGetValue().            */
 352   if (hadc->Init.LowPowerAutoWait == DISABLE)
 353   {
 354     /* Clear injected group conversion flag */
 355     __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JSTRT | ADC_FLAG_JEOC);
 356   }
 357
 358   /* Update state machine on conversion status if not in error state */
 359   if(hadc->State != HAL_ADC_STATE_ERROR)
 360   {
 361     /* Update ADC state machine */
 362     if(hadc->State != HAL_ADC_STATE_EOC_INJ_REG)
 363     {
 364
 365       if(hadc->State == HAL_ADC_STATE_EOC_REG)
 366       {
 367         /* Change ADC state */
 368         hadc->State = HAL_ADC_STATE_EOC_INJ_REG;
 369       }
 370       else
 371       {
 372         /* Change ADC state */
 373         hadc->State = HAL_ADC_STATE_EOC_INJ;
 374       }
 375     }
 376   }
 377
 378   /* Return ADC state */
 379   return HAL_OK;
 380 }
 381
 382 /**
 383   * @brief  Enables ADC, starts conversion of injected group with interruption.
 384   *         Interruptions enabled in this function: JEOC (end of conversion).
 385   *         Each of these interruptions has its dedicated callback function.
 386   * @param  hadc: ADC handle
 387   * @retval HAL status.
 388   */
 389 HAL_StatusTypeDef HAL_ADCEx_InjectedStart_IT(ADC_HandleTypeDef* hadc)
 390 {
 391   HAL_StatusTypeDef tmpHALStatus = HAL_OK;
 392
 393   /* Check the parameters */
 394   assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
 395
 396   /* Process locked */
 397   __HAL_LOCK(hadc);
 398
 399   /* Enable the ADC peripheral */
 400   tmpHALStatus = ADC_Enable(hadc);
 401
 402   /* Start conversion if ADC is effectively enabled */
 403   if (tmpHALStatus != HAL_ERROR)
 404   {
 405     /* Check if a regular conversion is ongoing */
 406     if(hadc->State == HAL_ADC_STATE_BUSY_REG)
 407     {
 408       /* Change ADC state */
 409       hadc->State = HAL_ADC_STATE_BUSY_INJ_REG;
 410     }
 411     else
 412     {
 413       /* Change ADC state */
 414       hadc->State = HAL_ADC_STATE_BUSY_INJ;
 415     }
 416
 417     /* Set ADC error code to none */
 418     __HAL_ADC_CLEAR_ERRORCODE(hadc);
 419
 420     /* Clear injected group conversion flag */
 421     /* (To ensure of no unknown state from potential previous ADC operations) */
 422     __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JEOC);
 423
 424     /* Enable end of conversion interrupt for injected channels */
 425     __HAL_ADC_ENABLE_IT(hadc, ADC_IT_JEOC);
 426
 427     /* Start conversion of injected group if software start has been selected */
 428     /* and if automatic injected conversion is disabled.                      */
 429     /* If external trigger has been selected, conversion will start at next   */
 430     /* trigger event.                                                         */
 431     /* If automatic injected conversion is enabled, conversion will start     */
 432     /* after next regular group conversion.                                   */
 433     if (__HAL_ADC_IS_SOFTWARE_START_INJECTED(hadc)        &&
 434         HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO)  )
 435     {
 436       /* Enable ADC software conversion for injected channels */
 437       SET_BIT(hadc->Instance->CR2, ADC_CR2_JSWSTART);
 438     }
 439   }
 440
 441   /* Process unlocked */
 442   __HAL_UNLOCK(hadc);
 443
 444   /* Return function status */
 445   return tmpHALStatus;
 446 }
 447
 448 /**
 449   * @brief  Stop conversion of injected channels, disable interruption of
 450   *         end-of-conversion. Disable ADC peripheral if no regular conversion
 451   *         is on going.
 452   * @note   If ADC must be disabled with this function and if regular conversion
 453   *         is on going, function HAL_ADC_Stop must be used preliminarily.
 454   * @param  hadc: ADC handle
 455   * @retval None
 456   */
 457 HAL_StatusTypeDef HAL_ADCEx_InjectedStop_IT(ADC_HandleTypeDef* hadc)
 458 {
 459   HAL_StatusTypeDef tmpHALStatus = HAL_OK;
 460
 461   /* Check the parameters */
 462   assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
 463
 464   /* Process locked */
 465   __HAL_LOCK(hadc);
 466
 467   /* Stop potential conversion and disable ADC peripheral                     */
 468   /* Conditioned to:                                                          */
 469   /* - No conversion on the other group (regular group) is intended to        */
 470   /*   continue (injected and regular groups stop conversion and ADC disable  */
 471   /*   are common)                                                            */
 472   /* - In case of auto-injection mode, HAL_ADC_Stop must be used.             */
 473     if((hadc->State != HAL_ADC_STATE_BUSY_REG)            &&
 474        (hadc->State != HAL_ADC_STATE_BUSY_INJ_REG)        &&
 475        HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO)   )
 476   {
 477     /* Stop potential conversion on going, on regular and injected groups */
 478     /* Disable ADC peripheral */
 479     tmpHALStatus = ADC_ConversionStop_Disable(hadc);
 480
 481     /* Check if ADC is effectively disabled */
 482     if (tmpHALStatus != HAL_ERROR)
 483     {
 484       /* Disable ADC end of conversion interrupt for injected channels */
 485       __HAL_ADC_DISABLE_IT(hadc, ADC_IT_JEOC);
 486
 487       /* Change ADC state */
 488       hadc->State = HAL_ADC_STATE_READY;
 489     }
 490   }
 491   else
 492   {
 493     /* Update ADC state machine to error */
 494     hadc->State = HAL_ADC_STATE_ERROR;
 495
 496     tmpHALStatus = HAL_ERROR;
 497   }
 498
 499   /* Process unlocked */
 500   __HAL_UNLOCK(hadc);
 501
 502   /* Return function status */
 503   return tmpHALStatus;
 504 }
 505
 506 /**
 507   * @brief  Get ADC injected group conversion result.
 508   * @param  hadc: ADC handle
 509   * @param  InjectedRank: the converted ADC injected rank.
 510   *          This parameter can be one of the following values:
 511   *            @arg ADC_INJECTED_RANK_1: Injected Channel1 selected
 512   *            @arg ADC_INJECTED_RANK_2: Injected Channel2 selected
 513   *            @arg ADC_INJECTED_RANK_3: Injected Channel3 selected
 514   *            @arg ADC_INJECTED_RANK_4: Injected Channel4 selected
 515   * @retval None
 516   */
 517 uint32_t HAL_ADCEx_InjectedGetValue(ADC_HandleTypeDef* hadc, uint32_t InjectedRank)
 518 {
 519   uint32_t tmp_jdr = 0;
 520
 521   /* Check the parameters */
 522   assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
 523   assert_param(IS_ADC_INJECTED_RANK(InjectedRank));
 524
 525   /* Clear injected group conversion flag to have similar behaviour as         */
 526   /* regular group: reading data register also clears end of conversion flag. */
 527   __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JEOC);
 528
 529   /* Get ADC converted value */
 530   switch(InjectedRank)
 531   {
 532     case ADC_INJECTED_RANK_4:
 533       tmp_jdr = hadc->Instance->JDR4;
 534       break;
 535     case ADC_INJECTED_RANK_3:
 536       tmp_jdr = hadc->Instance->JDR3;
 537       break;
 538     case ADC_INJECTED_RANK_2:
 539       tmp_jdr = hadc->Instance->JDR2;
 540       break;
 541     case ADC_INJECTED_RANK_1:
 542     default:
 543       tmp_jdr = hadc->Instance->JDR1;
 544       break;
 545   }
 546
 547   /* Return ADC converted value */
 548   return tmp_jdr;
 549 }
 550
 551 /**
 552   * @brief  Injected conversion complete callback in non blocking mode
 553   * @param  hadc: ADC handle
 554   * @retval None
 555   */
 556 __weak void HAL_ADCEx_InjectedConvCpltCallback(ADC_HandleTypeDef* hadc)
 557 {
 558   /* NOTE : This function Should not be modified, when the callback is needed,
 559             the HAL_ADCEx_InjectedConvCpltCallback could be implemented in the user file
 560   */
 561 }
 562
 563 /**
 564   * @}
 565   */
 566
 567 /** @defgroup ADCEx_Exported_Functions_Group2 Extended Peripheral Control functions
 568   * @brief    Extended Peripheral Control functions
 569   *
 570 @verbatim
 571  ===============================================================================
 572              ##### Peripheral Control functions #####
 573  ===============================================================================
 574     [..]  This section provides functions allowing to:
 575       (+) Configure channels on injected group
 576
 577 @endverbatim
 578   * @{
 579   */
 580
 581 /**
 582   * @brief  Configures the ADC injected group and the selected channel to be
 583   *         linked to the injected group.
 584   * @note   Possibility to update parameters on the fly:
 585   *         This function initializes injected group, following calls to this
 586   *         function can be used to reconfigure some parameters of structure
 587   *         "ADC_InjectionConfTypeDef" on the fly, without reseting the ADC.
 588   *         The setting of these parameters is conditioned to ADC state:
 589   *         this function must be called when ADC is not under conversion.
 590   * @param  hadc: ADC handle
 591   * @param  sConfigInjected: Structure of ADC injected group and ADC channel for
 592   *         injected group.
 593   * @retval None
 594   */
 595 HAL_StatusTypeDef HAL_ADCEx_InjectedConfigChannel(ADC_HandleTypeDef* hadc, ADC_InjectionConfTypeDef* sConfigInjected)
 596 {
 597   HAL_StatusTypeDef tmpHALStatus = HAL_OK;
 598
 599   /* Check the parameters */
 600   assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
 601   assert_param(IS_ADC_CHANNEL(sConfigInjected->InjectedChannel));
 602   assert_param(IS_ADC_SAMPLE_TIME(sConfigInjected->InjectedSamplingTime));
 603   assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->AutoInjectedConv));
 604   assert_param(IS_ADC_EXTTRIGINJEC(sConfigInjected->ExternalTrigInjecConv));
 605   assert_param(IS_ADC_RANGE(sConfigInjected->InjectedOffset));
 606
 607   if(hadc->Init.ScanConvMode != ADC_SCAN_DISABLE)
 608   {
 609     assert_param(IS_ADC_INJECTED_RANK(sConfigInjected->InjectedRank));
 610     assert_param(IS_ADC_INJECTED_NB_CONV(sConfigInjected->InjectedNbrOfConversion));
 611     assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->InjectedDiscontinuousConvMode));
 612   }
 613
 614   if(sConfigInjected->ExternalTrigInjecConvEdge != ADC_INJECTED_SOFTWARE_START)
 615   {
 616     assert_param(IS_ADC_EXTTRIGINJEC_EDGE(sConfigInjected->ExternalTrigInjecConvEdge));
 617   }
 618
 619   /* Process locked */
 620   __HAL_LOCK(hadc);
 621
 622   /* Configuration of injected group sequencer:                               */
 623   /* - if scan mode is disabled, injected channels sequence length is set to  */
 624   /*   0x00: 1 channel converted (channel on regular rank 1)                  */
 625   /*   Parameter "InjectedNbrOfConversion" is discarded.                      */
 626   /*   Note: Scan mode is present by hardware on this device and, if          */
 627   /*   disabled, discards automatically nb of conversions. Anyway, nb of      */
 628   /*   conversions is forced to 0x00 for alignment over all STM32 devices.    */
 629   /* - if scan mode is enabled, injected channels sequence length is set to   */
 630   /*   parameter ""InjectedNbrOfConversion".                                  */
 631   if (hadc->Init.ScanConvMode == ADC_SCAN_DISABLE)
 632   {
 633     if (sConfigInjected->InjectedRank == ADC_INJECTED_RANK_1)
 634     {
 635       /* Clear the old SQx bits for all injected ranks */
 636         MODIFY_REG(hadc->Instance->JSQR                           ,
 637                    ADC_JSQR_JL   |
 638                    ADC_JSQR_JSQ4 |
 639                    ADC_JSQR_JSQ3 |
 640                    ADC_JSQR_JSQ2 |
 641                    ADC_JSQR_JSQ1                                  ,
 642                    __ADC_JSQR_RK(sConfigInjected->InjectedChannel,
 643                                  ADC_INJECTED_RANK_1,
 644                                  0x01)                             );
 645     }
 646     /* If another injected rank than rank1 was intended to be set, and could  */
 647     /* not due to ScanConvMode disabled, error is reported.                   */
 648     else
 649     {
 650         /* Update ADC state machine to error */
 651         hadc->State = HAL_ADC_STATE_ERROR;
 652
 653         tmpHALStatus = HAL_ERROR;
 654     }
 655   }
 656   else
 657   {
 658     /* Since injected channels rank conv. order depends on total number of   */
 659     /* injected conversions, selected rank must be below or equal to total   */
 660     /* number of injected conversions to be updated.                         */
 661     if (sConfigInjected->InjectedRank <= sConfigInjected->InjectedNbrOfConversion)
 662     {
 663       /* Clear the old SQx bits for the selected rank */
 664       /* Set the SQx bits for the selected rank */
 665       MODIFY_REG(hadc->Instance->JSQR                                                 ,
 666
 667                  ADC_JSQR_JL                                            |
 668                  __ADC_JSQR_RK(ADC_JSQR_JSQ1,
 669                                sConfigInjected->InjectedRank,
 670                                sConfigInjected->InjectedNbrOfConversion)              ,
 671
 672                  __ADC_JSQR_JL(sConfigInjected->InjectedNbrOfConversion) |
 673                  __ADC_JSQR_RK(sConfigInjected->InjectedChannel,
 674                                              sConfigInjected->InjectedRank,
 675                                              sConfigInjected->InjectedNbrOfConversion) );
 676     }
 677     else
 678     {
 679       /* Clear the old SQx bits for the selected rank */
 680       MODIFY_REG(hadc->Instance->JSQR                                    ,
 681
 682                  ADC_JSQR_JL                                            |
 683                  __ADC_JSQR_RK(ADC_JSQR_JSQ1,
 684                                sConfigInjected->InjectedRank,
 685                                sConfigInjected->InjectedNbrOfConversion) ,
 686
 687                  0x00000000                                               );
 688     }
 689   }
 690
 691   /* Enable external trigger if trigger selection is different of software    */
 692   /* start.                                                                   */
 693   /* Note: This configuration keeps the hardware feature of parameter         */
 694   /*       ExternalTrigConvEdge "trigger edge none" equivalent to             */
 695   /*       software start.                                                    */
 696
 697   if (sConfigInjected->ExternalTrigInjecConv != ADC_INJECTED_SOFTWARE_START)
 698   {
 699     MODIFY_REG(hadc->Instance->CR2                        ,
 700                ADC_CR2_JEXTEN  |
 701                ADC_CR2_JEXTSEL                            ,
 702                sConfigInjected->ExternalTrigInjecConv    |
 703                sConfigInjected->ExternalTrigInjecConvEdge  );
 704   }
 705   else
 706   {
 707     MODIFY_REG(hadc->Instance->CR2,
 708                ADC_CR2_JEXTEN  |
 709                ADC_CR2_JEXTSEL    ,
 710                0x00000000          );
 711   }
 712
 713   /* Configuration of injected group                                          */
 714   /* Parameters update conditioned to ADC state:                              */
 715   /* Parameters that can be updated only when ADC is disabled:                */
 716   /*  - Automatic injected conversion                                         */
 717   /*  - Injected discontinuous mode                                           */
 718   if ((__HAL_ADC_IS_ENABLED(hadc) == RESET))
 719   {
 720     hadc->Instance->CR1 &= ~(ADC_CR1_JAUTO   |
 721                              ADC_CR1_JDISCEN  );
 722
 723     /* Automatic injected conversion can be enabled if injected group         */
 724     /* external triggers are disabled.                                        */
 725     if (sConfigInjected->AutoInjectedConv == ENABLE)
 726     {
 727       if (sConfigInjected->ExternalTrigInjecConv == ADC_INJECTED_SOFTWARE_START)
 728       {
 729         SET_BIT(hadc->Instance->CR1, ADC_CR1_JAUTO);
 730       }
 731       else
 732       {
 733         /* Update ADC state machine to error */
 734         hadc->State = HAL_ADC_STATE_ERROR;
 735
 736         tmpHALStatus = HAL_ERROR;
 737       }
 738     }
 739
 740     /* Injected discontinuous can be enabled only if auto-injected mode is    */
 741     /* disabled.                                                              */
 742     if (sConfigInjected->InjectedDiscontinuousConvMode == ENABLE)
 743     {
 744       if (sConfigInjected->AutoInjectedConv == DISABLE)
 745       {
 746         SET_BIT(hadc->Instance->CR1, ADC_CR1_JDISCEN);
 747       }
 748       else
 749       {
 750         /* Update ADC state machine to error */
 751         hadc->State = HAL_ADC_STATE_ERROR;
 752
 753         tmpHALStatus = HAL_ERROR;
 754       }
 755     }
 756   }
 757
 758   /* InjectedChannel sampling time configuration */
 759   /* For InjectedChannels 0 to 9 */
 760   if (sConfigInjected->InjectedChannel < ADC_CHANNEL_10)
 761   {
 762     MODIFY_REG(hadc->Instance->SMPR3,
 763                __ADC_SMPR3(ADC_SMPR3_SMP0, sConfigInjected->InjectedChannel),
 764                __ADC_SMPR3(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel) );
 765   }
 766   /* For InjectedChannels 10 to 19 */
 767   else if (sConfigInjected->InjectedChannel < ADC_CHANNEL_20)
 768   {
 769     MODIFY_REG(hadc->Instance->SMPR2,
 770                __ADC_SMPR2(ADC_SMPR2_SMP10, sConfigInjected->InjectedChannel),
 771                __ADC_SMPR2(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel) );
 772   }
 773   /* For InjectedChannels 20 to 26 for devices Cat.1, Cat.2, Cat.3 */
 774   /* For InjectedChannels 20 to 29 for devices Cat4, Cat.5 */
 775   else if (sConfigInjected->InjectedChannel <= ADC_SMPR1_CHANNEL_MAX)
 776   {
 777     MODIFY_REG(hadc->Instance->SMPR1,
 778                __ADC_SMPR1(ADC_SMPR1_SMP20, sConfigInjected->InjectedChannel),
 779                __ADC_SMPR1(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel) );
 780   }
 781   /* For InjectedChannels 30 to 31 for devices Cat4, Cat.5 */
 782   else
 783   {
 784     __ADC_SMPR0_CHANNEL_SET(hadc, sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel);
 785   }
 786
 787
 788   /* Configure the offset: offset enable/disable, InjectedChannel, offset value */
 789   switch(sConfigInjected->InjectedRank)
 790   {
 791     case 1:
 792       /* Set injected channel 1 offset */
 793       MODIFY_REG(hadc->Instance->JOFR1,
 794                  ADC_JOFR1_JOFFSET1,
 795                  sConfigInjected->InjectedOffset);
 796       break;
 797     case 2:
 798       /* Set injected channel 2 offset */
 799       MODIFY_REG(hadc->Instance->JOFR2,
 800                  ADC_JOFR2_JOFFSET2,
 801                  sConfigInjected->InjectedOffset);
 802       break;
 803     case 3:
 804       /* Set injected channel 3 offset */
 805       MODIFY_REG(hadc->Instance->JOFR3,
 806                  ADC_JOFR3_JOFFSET3,
 807                  sConfigInjected->InjectedOffset);
 808       break;
 809     case 4:
 810     default:
 811       MODIFY_REG(hadc->Instance->JOFR4,
 812                  ADC_JOFR4_JOFFSET4,
 813                  sConfigInjected->InjectedOffset);
 814       break;
 815   }
 816
 817   /* If ADC1 Channel_16 or Channel_17 is selected, enable Temperature sensor  */
 818   /* and VREFINT measurement path.                                            */
 819   if ((sConfigInjected->InjectedChannel == ADC_CHANNEL_TEMPSENSOR) ||
 820       (sConfigInjected->InjectedChannel == ADC_CHANNEL_VREFINT)      )
 821   {
 822     SET_BIT(ADC->CCR, ADC_CCR_TSVREFE);
 823   }
 824
 825   /* Process unlocked */
 826   __HAL_UNLOCK(hadc);
 827
 828   /* Return function status */
 829   return tmpHALStatus;
 830 }
 831
 832 /**
 833   * @}
 834   */
 835
 836 /**
 837   * @}
 838   */
 839
 840 #endif /* HAL_ADC_MODULE_ENABLED */
 841 /**
 842   * @}
 843   */
 844
 845 /**
 846   * @}
 847   */
 848
 849 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/