/**
@page WWDG_RefreshUntilUserEvent WWDG example
@verbatim
******************** (C) COPYRIGHT 2017 STMicroelectronics *******************
* @file Examples_LL/WWDG/WWDG_RefreshUntilUserEvent/readme.txt
* @author MCD Application Team
* @brief Description of the WWDG_RefreshUntilUserEvent example.
******************************************************************************
* @attention
*
* Copyright (c) 2017 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 describes how to configure the WWDG, periodically update the counter,
and generate an MCU WWDG reset when a user button is pressed. Peripheral initialization
is done using LL unitary services functions for optimization purpose (performance and size).
Example Configuration:
Configure the WWDG (Window, Prescaler & Counter) and enable it.
Refresh the WWDG downcounter in the main loop - LED2 is blinking fastly & continuously
Example Execution:
When User Button is pressed, the Downcounter automatic refresh mechanism is disable and thus, reset will occur.
After a reset when re-entering in the main, RCC WWDG Reset Flag will be checked and if we are back from a WWDG reset the LED2 will be switch ON.
Waiting a new user button pressed to re-activate the WWDG
@par Keywords
System, WWDG, Timeout, Refresh, Counter update, MCU Reset, Downcounter, Event, Window
@par Directory contents
- WWDG/WWDG_RefreshUntilUserEvent/Inc/stm32f4xx_it.h Interrupt handlers header file
- WWDG/WWDG_RefreshUntilUserEvent/Inc/main.h Header for main.c module
- WWDG/WWDG_RefreshUntilUserEvent/Inc/stm32_assert.h Template file to include assert_failed function
- WWDG/WWDG_RefreshUntilUserEvent/Src/stm32f4xx_it.c Interrupt handlers
- WWDG/WWDG_RefreshUntilUserEvent/Src/main.c Main program
- WWDG/WWDG_RefreshUntilUserEvent/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
*/
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