128 lines
4.1 KiB
C
128 lines
4.1 KiB
C
/**
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******************************************************************************
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* @file stm32f1xx_hal_gpio_ex.c
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* @author MCD Application Team
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* @brief GPIO Extension HAL module driver.
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* This file provides firmware functions to manage the following
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* functionalities of the General Purpose Input/Output (GPIO) extension peripheral.
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* + Extended features functions
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*
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@verbatim
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==============================================================================
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##### GPIO Peripheral extension features #####
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==============================================================================
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[..] GPIO module on STM32F1 family, manage also the AFIO register:
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(+) Possibility to use the EVENTOUT Cortex feature
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##### How to use this driver #####
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==============================================================================
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[..] This driver provides functions to use EVENTOUT Cortex feature
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(#) Configure EVENTOUT Cortex feature using the function HAL_GPIOEx_ConfigEventout()
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(#) Activate EVENTOUT Cortex feature using the HAL_GPIOEx_EnableEventout()
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(#) Deactivate EVENTOUT Cortex feature using the HAL_GPIOEx_DisableEventout()
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@endverbatim
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.</center></h2>
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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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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f1xx_hal.h"
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/** @addtogroup STM32F1xx_HAL_Driver
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* @{
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*/
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/** @defgroup GPIOEx GPIOEx
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* @brief GPIO HAL module driver
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* @{
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*/
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#ifdef HAL_GPIO_MODULE_ENABLED
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/** @defgroup GPIOEx_Exported_Functions GPIOEx Exported Functions
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* @{
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*/
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/** @defgroup GPIOEx_Exported_Functions_Group1 Extended features functions
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* @brief Extended features functions
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*
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@verbatim
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==============================================================================
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##### Extended features functions #####
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==============================================================================
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[..] This section provides functions allowing to:
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(+) Configure EVENTOUT Cortex feature using the function HAL_GPIOEx_ConfigEventout()
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(+) Activate EVENTOUT Cortex feature using the HAL_GPIOEx_EnableEventout()
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(+) Deactivate EVENTOUT Cortex feature using the HAL_GPIOEx_DisableEventout()
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@endverbatim
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* @{
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*/
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/**
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* @brief Configures the port and pin on which the EVENTOUT Cortex signal will be connected.
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* @param GPIO_PortSource Select the port used to output the Cortex EVENTOUT signal.
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* This parameter can be a value of @ref GPIOEx_EVENTOUT_PORT.
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* @param GPIO_PinSource Select the pin used to output the Cortex EVENTOUT signal.
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* This parameter can be a value of @ref GPIOEx_EVENTOUT_PIN.
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* @retval None
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*/
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void HAL_GPIOEx_ConfigEventout(uint32_t GPIO_PortSource, uint32_t GPIO_PinSource)
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{
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/* Verify the parameters */
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assert_param(IS_AFIO_EVENTOUT_PORT(GPIO_PortSource));
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assert_param(IS_AFIO_EVENTOUT_PIN(GPIO_PinSource));
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/* Apply the new configuration */
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MODIFY_REG(AFIO->EVCR, (AFIO_EVCR_PORT) | (AFIO_EVCR_PIN), (GPIO_PortSource) | (GPIO_PinSource));
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}
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/**
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* @brief Enables the Event Output.
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* @retval None
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*/
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void HAL_GPIOEx_EnableEventout(void)
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{
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SET_BIT(AFIO->EVCR, AFIO_EVCR_EVOE);
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}
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/**
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* @brief Disables the Event Output.
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* @retval None
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*/
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void HAL_GPIOEx_DisableEventout(void)
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{
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CLEAR_BIT(AFIO->EVCR, AFIO_EVCR_EVOE);
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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#endif /* HAL_GPIO_MODULE_ENABLED */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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