/** ****************************************************************************** * @file stm32f1xx_hal_gpio_ex.c * @author MCD Application Team * @brief GPIO Extension HAL module driver. * This file provides firmware functions to manage the following * functionalities of the General Purpose Input/Output (GPIO) extension peripheral. * + Extended features functions * @verbatim ============================================================================== ##### GPIO Peripheral extension features ##### ============================================================================== [..] GPIO module on STM32F1 family, manage also the AFIO register: (+) Possibility to use the EVENTOUT Cortex feature ##### How to use this driver ##### ============================================================================== [..] This driver provides functions to use EVENTOUT Cortex feature (#) Configure EVENTOUT Cortex feature using the function HAL_GPIOEx_ConfigEventout() (#) Activate EVENTOUT Cortex feature using the HAL_GPIOEx_EnableEventout() (#) Deactivate EVENTOUT Cortex feature using the HAL_GPIOEx_DisableEventout() @endverbatim ****************************************************************************** * @attention * *

© Copyright (c) 2016 STMicroelectronics. * All rights reserved.

* * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32f1xx_hal.h" /** @addtogroup STM32F1xx_HAL_Driver * @{ */ /** @defgroup GPIOEx GPIOEx * @brief GPIO HAL module driver * @{ */ #ifdef HAL_GPIO_MODULE_ENABLED /** @defgroup GPIOEx_Exported_Functions GPIOEx Exported Functions * @{ */ /** @defgroup GPIOEx_Exported_Functions_Group1 Extended features functions * @brief Extended features functions * @verbatim ============================================================================== ##### Extended features functions ##### ============================================================================== [..] This section provides functions allowing to: (+) Configure EVENTOUT Cortex feature using the function HAL_GPIOEx_ConfigEventout() (+) Activate EVENTOUT Cortex feature using the HAL_GPIOEx_EnableEventout() (+) Deactivate EVENTOUT Cortex feature using the HAL_GPIOEx_DisableEventout() @endverbatim * @{ */ /** * @brief Configures the port and pin on which the EVENTOUT Cortex signal will be connected. * @param GPIO_PortSource Select the port used to output the Cortex EVENTOUT signal. * This parameter can be a value of @ref GPIOEx_EVENTOUT_PORT. * @param GPIO_PinSource Select the pin used to output the Cortex EVENTOUT signal. * This parameter can be a value of @ref GPIOEx_EVENTOUT_PIN. * @retval None */ void HAL_GPIOEx_ConfigEventout(uint32_t GPIO_PortSource, uint32_t GPIO_PinSource) { /* Verify the parameters */ assert_param(IS_AFIO_EVENTOUT_PORT(GPIO_PortSource)); assert_param(IS_AFIO_EVENTOUT_PIN(GPIO_PinSource)); /* Apply the new configuration */ MODIFY_REG(AFIO->EVCR, (AFIO_EVCR_PORT) | (AFIO_EVCR_PIN), (GPIO_PortSource) | (GPIO_PinSource)); } /** * @brief Enables the Event Output. * @retval None */ void HAL_GPIOEx_EnableEventout(void) { SET_BIT(AFIO->EVCR, AFIO_EVCR_EVOE); } /** * @brief Disables the Event Output. * @retval None */ void HAL_GPIOEx_DisableEventout(void) { CLEAR_BIT(AFIO->EVCR, AFIO_EVCR_EVOE); } /** * @} */ /** * @} */ #endif /* HAL_GPIO_MODULE_ENABLED */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/