64 lines
2.5 KiB
Plaintext
64 lines
2.5 KiB
Plaintext
/**
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@page WWDG_RefreshUntilUserEvent WWDG example
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@verbatim
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******************** (C) COPYRIGHT 2016 STMicroelectronics *******************
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* @file Examples_LL/WWDG/WWDG_RefreshUntilUserEvent/readme.txt
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* @author MCD Application Team
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* @brief Description of the WWDG_RefreshUntilUserEvent example.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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@endverbatim
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@par Example Description
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Configuration of the WWDG to periodically update the counter and
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generate an MCU WWDG reset when a user button is pressed. The peripheral initialization
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uses the LL unitary service functions for optimization purposes (performance and size).
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Example Configuration:
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Configure the WWDG (Window, Prescaler & Counter) and enable it.
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Refresh the WWDG downcounter in the main loop - LED2 is blinking fastly & continuously
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Example Execution:
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When User Button is pressed, the Downcounter automatic refresh mechanism is disable and thus, reset will occur.
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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.
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Waiting a new user button pressed to re-activate the WWDG
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@par Directory contents
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- WWDG/WWDG_RefreshUntilUserEvent/Inc/stm32f1xx_it.h Interrupt handlers header file
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- WWDG/WWDG_RefreshUntilUserEvent/Inc/main.h Header for main.c module
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- WWDG/WWDG_RefreshUntilUserEvent/Inc/stm32_assert.h Template file to include assert_failed function
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- WWDG/WWDG_RefreshUntilUserEvent/Src/stm32f1xx_it.c Interrupt handlers
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- WWDG/WWDG_RefreshUntilUserEvent/Src/main.c Main program
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- WWDG/WWDG_RefreshUntilUserEvent/Src/system_stm32f1xx.c STM32F1xx system source file
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@par Hardware and Software environment
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- This example runs on STM32F103xB devices.
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- This example has been tested with STM32F103RB-Nucleo board and can be
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easily tailored to any other supported device and development board.
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@par How to use it ?
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In order to make the program work, you must do the following :
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- Open your preferred toolchain
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- Rebuild all files and load your image into target memory
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- Run the example
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*/
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