STM32CubeF4

/**
  @page ADC_SingleConversion_TriggerSW ADC example
  
  @verbatim
  ******************** (C) COPYRIGHT 2017 STMicroelectronics *******************
  * @file    Examples_LL/ADC/ADC_SingleConversion_TriggerSW/readme.txt 
  * @author  MCD Application Team
  * @brief   Description of the ADC_SingleConversion_TriggerSW example.
  ******************************************************************************
  *
  * Copyright (c) 2017 STMicroelectronics. All rights reserved.
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                       opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
   @endverbatim

@par Example Description
This example describes how to use a ADC peripheral to perform 
a single ADC conversion of a channel, at each software start; 
Example using programming model: polling 
(for programming models interrupt or DMA transfer, refer to
other examples); 
This example is based on the STM32F4xx ADC LL API; 
peripheral initialization done using LL unitary services functions
for optimization purpose (performance and size).

Example configuration:
ADC is configured to convert a single channel, in single conversion mode,
from SW trigger.

Example execution:
At each press on User Button, the ADC performs 1 conversion of the selected channel.
Software polls for conversion completion.
When conversion is completed, main program reads conversion data
from ADC data register and stores it into a variable, LED2 is turned on.

For debug: variables to monitor with debugger watch window:
 - "uhADCxConvertedData": ADC group regular conversion data
 - "uhADCxConvertedData_Voltage_mVolt": ADC conversion data computation to physical values

Connection needed:
None.
Note: Optionally, a voltage can be supplied to the analog input pin (cf pin below),
      between 0V and Vdda=3.3V, to perform a ADC conversion on a determined
      voltage level.
      Otherwise, this pin can be let floating (in this case ADC conversion data
      will be undetermined).

Other peripherals used:
  1 GPIO for User Button
  1 GPIO for LED2
  1 GPIO for analog input: PA.04 (Arduino connector CN8 pin A2, Morpho connector CN7 pin 32)

@par Keywords

Analog, ADC, Analog to Digital, single conversion , Software trigger, Polling

@par Directory contents 

  - ADC/ADC_SingleConversion_TriggerSW/Inc/stm32f4xx_it.h          Interrupt handlers header file
  - ADC/ADC_SingleConversion_TriggerSW/Inc/main.h                  Header for main.c module
  - ADC/ADC_SingleConversion_TriggerSW/Inc/stm32_assert.h          Template file to include assert_failed function
  - ADC/ADC_SingleConversion_TriggerSW/Src/stm32f4xx_it.c          Interrupt handlers
  - ADC/ADC_SingleConversion_TriggerSW/Src/main.c                  Main program
  - ADC/ADC_SingleConversion_TriggerSW/Src/system_stm32f4xx.c      STM32F4xx system source file


@par Hardware and Software environment

  - This example runs on STM32F411xx devices.
    
  - This example has been tested with NUCLEO-F411RE board and can be
    easily tailored to any other supported device and development board.


@par How to use it ? 

In order to make the program work, you must do the following :
 - Open your preferred toolchain
 - Rebuild all files and load your image into target memory
 - Run the example

 * <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
 */