/**
******************************************************************************
* @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
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* 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****/