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August 27, 2017 07:12
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| /** | |
| ****************************************************************************** | |
| * @file UART/UART_TwoBoards_ComIT/Src/stm32f4xx_hal_msp.c | |
| * @author MCD Application Team | |
| * @version V1.2.7 | |
| * @date 17-February-2017 | |
| * @brief HAL MSP module. | |
| ****************************************************************************** | |
| * @attention | |
| * | |
| * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> | |
| * | |
| * 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 "main.h" | |
| /** @addtogroup STM32F4xx_HAL_Examples | |
| * @{ | |
| */ | |
| /** @defgroup UART_TwoBoards_ComIT | |
| * @{ | |
| */ | |
| /* Private typedef -----------------------------------------------------------*/ | |
| /* Private define ------------------------------------------------------------*/ | |
| /* Private macro -------------------------------------------------------------*/ | |
| /* Private variables ---------------------------------------------------------*/ | |
| /* Private function prototypes -----------------------------------------------*/ | |
| /* Private functions ---------------------------------------------------------*/ | |
| /** @defgroup HAL_MSP_Private_Functions | |
| * @{ | |
| */ | |
| /** | |
| * @brief UART MSP Initialization | |
| * This function configures the hardware resources used in this example: | |
| * - Peripheral's clock enable | |
| * - Peripheral's GPIO Configuration | |
| * - NVIC configuration for UART interrupt request enable | |
| * @param huart: UART handle pointer | |
| * @retval None | |
| */ | |
| void HAL_UART_MspInit(UART_HandleTypeDef *huart) | |
| { | |
| GPIO_InitTypeDef GPIO_InitStruct; | |
| /*##-1- Enable peripherals and GPIO Clocks #################################*/ | |
| /* Enable GPIO TX/RX clock */ | |
| USARTx_TX_GPIO_CLK_ENABLE(); | |
| USARTx_RX_GPIO_CLK_ENABLE(); | |
| /* Enable USART2 clock */ | |
| USARTx_CLK_ENABLE(); | |
| /*##-2- Configure peripheral GPIO ##########################################*/ | |
| /* UART TX GPIO pin configuration */ | |
| GPIO_InitStruct.Pin = USARTx_TX_PIN; | |
| GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; | |
| GPIO_InitStruct.Pull = GPIO_NOPULL; | |
| GPIO_InitStruct.Speed = GPIO_SPEED_FAST; | |
| GPIO_InitStruct.Alternate = USARTx_TX_AF; | |
| HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct); | |
| /* UART RX GPIO pin configuration */ | |
| GPIO_InitStruct.Pin = USARTx_RX_PIN; | |
| GPIO_InitStruct.Alternate = USARTx_RX_AF; | |
| HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct); | |
| /*##-3- Configure the NVIC for UART ########################################*/ | |
| /* NVIC for USART1 */ | |
| HAL_NVIC_SetPriority(USARTx_IRQn, 0, 1); | |
| HAL_NVIC_EnableIRQ(USARTx_IRQn); | |
| } | |
| /** | |
| * @brief UART MSP De-Initialization | |
| * This function frees the hardware resources used in this example: | |
| * - Disable the Peripheral's clock | |
| * - Revert GPIO and NVIC configuration to their default state | |
| * @param huart: UART handle pointer | |
| * @retval None | |
| */ | |
| void HAL_UART_MspDeInit(UART_HandleTypeDef *huart) | |
| { | |
| /*##-1- Reset peripherals ##################################################*/ | |
| USARTx_FORCE_RESET(); | |
| USARTx_RELEASE_RESET(); | |
| /*##-2- Disable peripherals and GPIO Clocks #################################*/ | |
| /* Configure UART Tx as alternate function */ | |
| HAL_GPIO_DeInit(USARTx_TX_GPIO_PORT, USARTx_TX_PIN); | |
| /* Configure UART Rx as alternate function */ | |
| HAL_GPIO_DeInit(USARTx_RX_GPIO_PORT, USARTx_RX_PIN); | |
| /*##-3- Disable the NVIC for UART ##########################################*/ | |
| HAL_NVIC_DisableIRQ(USARTx_IRQn); | |
| } | |
| /** | |
| * @} | |
| */ | |
| /** | |
| * @} | |
| */ | |
| /** | |
| * @} | |
| */ | |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
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