/**
  @page PWR_PVD PWR PVD example
  
  @verbatim
  ******************** (C) COPYRIGHT 2015 STMicroelectronics *******************
  * @file    PWR/PWR_PVD/readme.txt 
  * @author  MCD Application Team
  * @version V1.1.3
  * @date    15-December-2021
  * @brief   Description of the PWR PVD example.
  ******************************************************************************
  *
  * Copyright (c) 2015 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
   @endverbatim

@par Example Description 

This example shows how to configure the programmable voltage detector using
an external interrupt line. In this example, EXTI line 16 is configured to generate 
an interrupt on each rising or falling edge of the PVD output signal (which 
indicates that the Vdd voltage is below the PVD threshold).
In the interrupt routine a led connected to a specific GPIO pin is toggled every 
time the voltage drops below or  the target threshold.

@par Directory contents 

  - PWR/PWR_PVD/stm32f30x_conf.h    Library Configuration file
  - PWR/PWR_PVD/stm32f30x_it.c      Interrupt handlers
  - PWR/PWR_PVD/stm32f30x_it.h      Interrupt handlers header file
  - PWR/PWR_PVD/main.c              Main program
  - PWR/PWR_PVD/system_stm32f30x.c  STM32F30x system source file
  
@note The "system_stm32f30x.c" is generated by an automatic clock configuration 
      system and can be easily customized to your own configuration. 
      To select different clock setup, use the "STM32F30x_Clock_Configuration_V1.0.0.xls" 
      provided with the AN4152 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp">  ST Microcontrollers </a>
       
@par Hardware and Software environment

  - This example runs on STM32F303xC and STM32F303xE Devices.
  
  - This example has been tested with STMicroelectronics STM32303C-EVAL (STM32F30x)
    evaluation board and can be easily tailored to any other supported device 
    and development board.

  - STM323303C-EVAL Set-up  
    - Use RV1 Potentiometer to adjust Vdd.
    - Make sure That jumper JP15 in position 1-2(VDD_ADJ).
    - Use LED1 connected to PE.08 pin

@note
- Use a variable DC power supply connected to the 3V3 input to the evaluation 
  board and dropping the voltage below 2.7V. 
         
@par How to use it ? 

In order to make the program work, you must do the following :
 - Copy all source files from this example folder to the template folder under
   Project\STM32F30x_StdPeriph_Template
 - Open your preferred toolchain 
 - Add the following file to the project source list
   - Utilities\STM32_EVAL\STM32303C_EVAL\stm32303c_eval.c
 - Rebuild all files and load your image into target memory
 - Run the example in standalone mode (without debugger connection)
  
   

 */
