This file provides firmware functions to manage the following functionalities of the ADC extension peripheral: More...

#include "stm32f4xx_hal.h"

Detailed Description

This file provides firmware functions to manage the following functionalities of the ADC extension peripheral:

Author

MCD Application Team

Extended features functions

==============================================================================
                  ##### How to use this driver #####
==============================================================================
  [..]
  (#)Initialize the ADC low level resources by implementing the HAL_ADC_MspInit():
     (##) Enable the ADC interface clock using __HAL_RCC_ADC_CLK_ENABLE()
     (##) ADC pins configuration
           (+++) Enable the clock for the ADC GPIOs using the following function:
                 __HAL_RCC_GPIOx_CLK_ENABLE()
           (+++) Configure these ADC pins in analog mode using HAL_GPIO_Init()
     (##) In case of using interrupts (e.g. HAL_ADC_Start_IT())
           (+++) Configure the ADC interrupt priority using HAL_NVIC_SetPriority()
           (+++) Enable the ADC IRQ handler using HAL_NVIC_EnableIRQ()
           (+++) In ADC IRQ handler, call HAL_ADC_IRQHandler()
    (##) In case of using DMA to control data transfer (e.g. HAL_ADC_Start_DMA())
           (+++) Enable the DMAx interface clock using __HAL_RCC_DMAx_CLK_ENABLE()
           (+++) Configure and enable two DMA streams stream for managing data
               transfer from peripheral to memory (output stream)
           (+++) Associate the initialized DMA handle to the ADC DMA handle
               using  __HAL_LINKDMA()
           (+++) Configure the priority and enable the NVIC for the transfer complete
               interrupt on the two DMA Streams. The output stream should have higher
               priority than the input stream.
   (#) Configure the ADC Prescaler, conversion resolution and data alignment
       using the HAL_ADC_Init() function.

   (#) Configure the ADC Injected channels group features, use HAL_ADC_Init()
       and HAL_ADC_ConfigChannel() functions.

   (#) Three operation modes are available within this driver :

   *** Polling mode IO operation ***
   =================================
   [..]
     (+) Start the ADC peripheral using HAL_ADCEx_InjectedStart()
     (+) Wait for end of conversion using HAL_ADC_PollForConversion(), at this stage
         user can specify the value of timeout according to his end application
     (+) To read the ADC converted values, use the HAL_ADCEx_InjectedGetValue() function.
     (+) Stop the ADC peripheral using HAL_ADCEx_InjectedStop()

   *** Interrupt mode IO operation ***
   ===================================
   [..]
     (+) Start the ADC peripheral using HAL_ADCEx_InjectedStart_IT()
     (+) Use HAL_ADC_IRQHandler() called under ADC_IRQHandler() Interrupt subroutine
     (+) At ADC end of conversion HAL_ADCEx_InjectedConvCpltCallback() function is executed and user can
          add his own code by customization of function pointer HAL_ADCEx_InjectedConvCpltCallback
     (+) In case of ADC Error, HAL_ADCEx_InjectedErrorCallback() function is executed and user can
          add his own code by customization of function pointer HAL_ADCEx_InjectedErrorCallback
     (+) Stop the ADC peripheral using HAL_ADCEx_InjectedStop_IT()


   *** DMA mode IO operation ***
   ==============================
   [..]
     (+) Start the ADC peripheral using HAL_ADCEx_InjectedStart_DMA(), at this stage the user specify the length
         of data to be transferred at each end of conversion
     (+) At The end of data transfer ba HAL_ADCEx_InjectedConvCpltCallback() function is executed and user can
          add his own code by customization of function pointer HAL_ADCEx_InjectedConvCpltCallback
     (+) In case of transfer Error, HAL_ADCEx_InjectedErrorCallback() function is executed and user can
          add his own code by customization of function pointer HAL_ADCEx_InjectedErrorCallback
      (+) Stop the ADC peripheral using HAL_ADCEx_InjectedStop_DMA()

   *** Multi mode ADCs Regular channels configuration ***
   ======================================================
   [..]
     (+) Select the Multi mode ADC regular channels features (dual or triple mode)
        and configure the DMA mode using HAL_ADCEx_MultiModeConfigChannel() functions.
     (+) Start the ADC peripheral using HAL_ADCEx_MultiModeStart_DMA(), at this stage the user specify the length
         of data to be transferred at each end of conversion
     (+) Read the ADCs converted values using the HAL_ADCEx_MultiModeGetValue() function.

Attention

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of STMicroelectronics nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Detailed Description

© COPYRIGHT(c) 2017 STMicroelectronics