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64 lines
2.4 KiB
Plaintext
64 lines
2.4 KiB
Plaintext
/**
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@page GPIO_InfiniteLedToggling GPIO example
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@verbatim
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******************** (C) COPYRIGHT 2017 STMicroelectronics *******************
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* @file Examples_LL/GPIO/GPIO_InfiniteLedToggling/readme.txt
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* @author MCD Application Team
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* @brief Description of the GPIO example.
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******************************************************************************
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*
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* Copyright (c) 2017 STMicroelectronics. All rights reserved.
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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@endverbatim
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@par Example Description
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This example describes how to configure and use GPIOs to toggle every 250 ms
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the user LEDs available on the board. This example is based on the STM32F4xx
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LL API. Peripheral initialization is done using LL unitary services functions
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for optimization purpose (performance and size).
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PA.05 IO (configured in output pushpull mode) toggles in a forever loop.
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On NUCLEO-F411RE board this IO is connected to LED2.
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In this example, HCLK is configured at 100 MHz.
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@par Keywords
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System, GPIO, Output, Alternate function, Push-pull, Toggle
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@par Directory contents
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- GPIO/GPIO_InfiniteLedToggling/Inc/stm32f4xx_it.h Interrupt handlers header file
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- GPIO/GPIO_InfiniteLedToggling/Inc/main.h Header for main.c module
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- GPIO/GPIO_InfiniteLedToggling/Inc/stm32_assert.h Template file to include assert_failed function
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- GPIO/GPIO_InfiniteLedToggling/Src/stm32f4xx_it.c Interrupt handlers
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- GPIO/GPIO_InfiniteLedToggling/Src/main.c Main program
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- GPIO/GPIO_InfiniteLedToggling/Src/system_stm32f4xx.c STM32F4xx system source file
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@par Hardware and Software environment
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- This example runs on STM32F411xE devices.
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- This example has been tested with NUCLEO-F411RE 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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* <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
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*/
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