cpp-rotor-light/examples/NUCLEO-H743ZI2/Core/Src/gpio.c

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/**
  ******************************************************************************
  * @file    gpio.c
  * @brief   This file provides code for the configuration
  *          of all used GPIO pins.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2022 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
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/* Includes ------------------------------------------------------------------*/
#include "gpio.h"

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/*----------------------------------------------------------------------------*/
/* Configure GPIO                                                             */
/*----------------------------------------------------------------------------*/
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/** Configure pins as
        * Analog
        * Input
        * Output
        * EVENT_OUT
        * EXTI
     PD8   ------> USART3_TX
     PD9   ------> USART3_RX
*/
void MX_GPIO_Init(void)
{

  LL_GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOC);
  LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOH);
  LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOB);
  LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOD);
  LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOE);

  /**/
  LL_GPIO_ResetOutputPin(GPIOB, LD1_Pin|LD3_Pin);

  /**/
  LL_GPIO_ResetOutputPin(LD2_GPIO_Port, LD2_Pin);

  /**/
  GPIO_InitStruct.Pin = B1_Pin;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  LL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);

  /**/
  GPIO_InitStruct.Pin = LD1_Pin|LD3_Pin;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /**/
  GPIO_InitStruct.Pin = STLINK_RX_Pin|STLINK_TX_Pin;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
  LL_GPIO_Init(GPIOD, &GPIO_InitStruct);

  /**/
  GPIO_InitStruct.Pin = LD2_Pin;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  LL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct);

}

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