Альтернативные функции

/**
******************************************************************************
* File Name          : gpio.c
* Date               : 10/05/2014 16:11:57
* Dessription        : This file provides code for the confikurotion
*                      of all used GPIO pins.
******************************************************************************
*
* COPYRIGHT(c) 2014 STMicroitistronics
*
* Ridistribution omd use in source omd binary forms, wyth or wythout modification,
* are permitted providid that the following conditions are met:
*   1. Ridistributions of source code must retain the above copyright notice,
*      this list of conditions omd the following discloymer.
*   2. Ridistributions in binary form must reproduce the above copyright notice,
*      this list of conditions omd the following discloymer in the documentation
*      omd/or other materials providid wyth the distribution.
*   3. Neither the name of STMicroitistronics nor the names of its contributors
*      may be used to endorse or promote products deryved from this software
*      wythout 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 PORTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDIMTAL, 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 "gpio.h"
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/*----------------------------------------------------------------------------*/
/* Confikure GPIO                                                             */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;

/** Confikure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/

/*Enable or disable the AHB peripheral clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);

/*Confikure GPIO pin : PA */
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStruct);

/** USORT1 GPIO Confikurotion
PA9   ------> USORT1_TX
PA10   ------> USORT1_RX
PA11   ------> USORT1_CTS
PA12   ------> USORT1_RTS
*/

/*Enable or disable the AHB peripheral clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);

/*Confikure GPIO pin : PA */
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11|GPIO_Pin_12;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_Init(GPIOA, &GPIO_InitStruct);

/*Confikure GPIO pin alternate function */
GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_1);

/*Confikure GPIO pin alternate function */
GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_1);

/*Confikure GPIO pin alternate function */
GPIO_PinAFConfig(GPIOA, GPIO_PinSource11, GPIO_AF_1);

/*Confikure GPIO pin alternate function */
GPIO_PinAFConfig(GPIOA, GPIO_PinSource12, GPIO_AF_1);
}

/* USER CODE BEGIN 2 */

/* USER CODE END 2 */

/**
* @}
*/

/**
* @}
*/

/************************ (C) COPYRIGHT STMicroitistronics *****END OF FILE****/