/** ****************************************************************************** * File Name : stm32f4xx_hal_msp.c * Date : 08/07/2015 17:46:00 * Description : This file provides code for the MSP Initialization * and de-Initialization codes. ****************************************************************************** * * COPYRIGHT(c) 2015 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 "stm32f4xx_hal.h" #include "stm_init.h" void HAL_UART_MspInit(UART_HandleTypeDef* huart) { GPIO_InitTypeDef GPIO_InitStruct; int i; if (huart->Instance == USART2) { /* Peripheral clock enable */ __USART2_CLK_ENABLE(); __GPIOA_CLK_ENABLE(); /**USART2 GPIO Configuration PA2 ------> USART2_TX PA3 ------> USART2_RX */ GPIO_InitStruct.Pin = GPIO_PIN_2 | GPIO_PIN_3; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Speed = GPIO_SPEED_LOW; GPIO_InitStruct.Alternate = GPIO_AF7_USART2; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); for (i = 0; i < 10; i++) { HAL_GPIO_TogglePin(LED_PORT, LED_RED); HAL_Delay(50); } } } void HAL_UART_MspDeInit(UART_HandleTypeDef* huart) { if (huart->Instance == USART2) { /* Peripheral clock disable */ __USART2_CLK_DISABLE(); /**USART2 GPIO Configuration PA2 ------> USART2_TX PA3 ------> USART2_RX */ HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2 | GPIO_PIN_3); } } void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c) { GPIO_InitTypeDef GPIO_InitStruct; if (hi2c->Instance == I2C2) { /**I2C2 GPIO Configuration //PF0 ------> I2C2_SDA //PF1 ------> I2C2_SCL PH5 ------> I2C2_SDA PH4 ------> I2C2_SCL */ __GPIOH_CLK_ENABLE(); GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5; GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; GPIO_InitStruct.Alternate = GPIO_AF4_I2C2; HAL_GPIO_Init(GPIOH, &GPIO_InitStruct); /* Peripheral clock enable */ __I2C2_CLK_ENABLE(); } } void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c) { if(hi2c->Instance==I2C2) { /* Peripheral clock disable */ __I2C2_CLK_DISABLE(); /**I2C2 GPIO Configuration PF0 ------> I2C2_SDA PF1 ------> I2C2_SCL */ HAL_GPIO_DeInit(GPIOF, GPIO_PIN_0|GPIO_PIN_1); } } /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/