text: /* USER CODE BEGIN Header */
  /**
    ******************************************************************************
    * @file         stm32l4xx_hal_msp.c
    * @brief        This file provides code for the MSP Initialization
    *               and de-Initialization codes.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
    * All rights reserved.</center></h2>
    *
    * This software component is licensed by ST under BSD 3-Clause license,
    * the "License"; You may not use this file except in compliance with the
    * License. You may obtain a copy of the License at:
    *                        opensource.org/licenses/BSD-3-Clause
    *
    ******************************************************************************
    */
  /* USER CODE END Header */
  
  /* Includes ------------------------------------------------------------------*/
  #include "main.h"
  /* USER CODE BEGIN Includes */
  
  /* USER CODE END Includes */
  
  /* Private typedef -----------------------------------------------------------*/
  /* USER CODE BEGIN TD */
  
  /* USER CODE END TD */
  
  /* Private define ------------------------------------------------------------*/
  /* USER CODE BEGIN Define */
  
  /* USER CODE END Define */
  
  /* Private macro -------------------------------------------------------------*/
  /* USER CODE BEGIN Macro */
  
  /* USER CODE END Macro */
  
  /* Private variables ---------------------------------------------------------*/
  /* USER CODE BEGIN PV */
  
  /* USER CODE END PV */
  
  /* Private function prototypes -----------------------------------------------*/
  /* USER CODE BEGIN PFP */
  
  /* USER CODE END PFP */
  
  /* External functions --------------------------------------------------------*/
  /* USER CODE BEGIN ExternalFunctions */
  
  /* USER CODE END ExternalFunctions */
  
  /* USER CODE BEGIN 0 */
  
  /* USER CODE END 0 */
  /**
    * Initializes the Global MSP.
    */
  void HAL_MspInit(void)
  {
    /* USER CODE BEGIN MspInit 0 */
  
    /* USER CODE END MspInit 0 */
  
    __HAL_RCC_SYSCFG_CLK_ENABLE();
    __HAL_RCC_PWR_CLK_ENABLE();
  
    /* System interrupt init*/
  
    /* USER CODE BEGIN MspInit 1 */
  
    /* USER CODE END MspInit 1 */
  }
  
  /**
  * @brief I2C MSP Initialization
  * This function configures the hardware resources used in this example
  * @param hi2c: I2C handle pointer
  * @retval None
  */
  void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
  {
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
    if(hi2c->Instance==I2C1)
    {
    /* USER CODE BEGIN I2C1_MspInit 0 */
  
    /* USER CODE END I2C1_MspInit 0 */
    /** Initializes the peripherals clock
    */
      PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_I2C1;
      PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_PCLK1;
      if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
      {
        Error_Handler();
      }
  
      __HAL_RCC_GPIOB_CLK_ENABLE();
      /**I2C1 GPIO Configuration
      PB8     ------> I2C1_SCL
      PB9     ------> I2C1_SDA
      */
      GPIO_InitStruct.Pin = ARD_D15_Pin|ARD_D14_Pin;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  
      /* Peripheral clock enable */
      __HAL_RCC_I2C1_CLK_ENABLE();
    /* USER CODE BEGIN I2C1_MspInit 1 */
  
    /* USER CODE END I2C1_MspInit 1 */
    }
    else if(hi2c->Instance==I2C2)
    {
    /* USER CODE BEGIN I2C2_MspInit 0 */
  
    /* USER CODE END I2C2_MspInit 0 */
  
    /** Initializes the peripherals clock
    */
      PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_I2C2;
      PeriphClkInit.I2c2ClockSelection = RCC_I2C2CLKSOURCE_PCLK1;
      if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
      {
        Error_Handler();
      }
  
      __HAL_RCC_GPIOB_CLK_ENABLE();
      /**I2C2 GPIO Configuration
      PB10     ------> I2C2_SCL
      PB11     ------> I2C2_SDA
      */
      GPIO_InitStruct.Pin = INTERNAL_I2C2_SCL_Pin|INTERNAL_I2C2_SDA_Pin;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
      GPIO_InitStruct.Pull = GPIO_PULLUP;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF4_I2C2;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  
      /* Peripheral clock enable */
      __HAL_RCC_I2C2_CLK_ENABLE();
    /* USER CODE BEGIN I2C2_MspInit 1 */
  
    /* USER CODE END I2C2_MspInit 1 */
    }
  
  }
  
  /**
  * @brief I2C MSP De-Initialization
  * This function freeze the hardware resources used in this example
  * @param hi2c: I2C handle pointer
  * @retval None
  */
  void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
  {
    if(hi2c->Instance==I2C1)
    {
    /* USER CODE BEGIN I2C1_MspDeInit 0 */
  
    /* USER CODE END I2C1_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_I2C1_CLK_DISABLE();
  
      /**I2C1 GPIO Configuration
      PB8     ------> I2C1_SCL
      PB9     ------> I2C1_SDA
      */
      HAL_GPIO_DeInit(ARD_D15_GPIO_Port, ARD_D15_Pin);
  
      HAL_GPIO_DeInit(ARD_D14_GPIO_Port, ARD_D14_Pin);
  
    /* USER CODE BEGIN I2C1_MspDeInit 1 */
  
    /* USER CODE END I2C1_MspDeInit 1 */
    }
    else if(hi2c->Instance==I2C2)
    {
    /* USER CODE BEGIN I2C2_MspDeInit 0 */
  
    /* USER CODE END I2C2_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_I2C2_CLK_DISABLE();
  
      /**I2C2 GPIO Configuration
      PB10     ------> I2C2_SCL
      PB11     ------> I2C2_SDA
      */
      HAL_GPIO_DeInit(INTERNAL_I2C2_SCL_GPIO_Port, INTERNAL_I2C2_SCL_Pin);
  
      HAL_GPIO_DeInit(INTERNAL_I2C2_SDA_GPIO_Port, INTERNAL_I2C2_SDA_Pin);
  
    /* USER CODE BEGIN I2C2_MspDeInit 1 */
  
    /* USER CODE END I2C2_MspDeInit 1 */
    }
  
  }
  
  /**
  * @brief TIM_Base MSP Initialization
  * This function configures the hardware resources used in this example
  * @param htim_base: TIM_Base handle pointer
  * @retval None
  */
  void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base)
  {
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    if(htim_base->Instance==TIM2)
    {
    /* USER CODE BEGIN TIM2_MspInit 0 */
  
    /* USER CODE END TIM2_MspInit 0 */
      /* Peripheral clock enable */
      __HAL_RCC_TIM2_CLK_ENABLE();
  
      __HAL_RCC_GPIOA_CLK_ENABLE();
      /**TIM2 GPIO Configuration
      PA3     ------> TIM2_CH4
      */
      GPIO_InitStruct.Pin = ARD_D4_Pin;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
      GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
      HAL_GPIO_Init(ARD_D4_GPIO_Port, &GPIO_InitStruct);
  
      /* TIM2 interrupt Init */
      HAL_NVIC_SetPriority(TIM2_IRQn, 0, 0);
      HAL_NVIC_EnableIRQ(TIM2_IRQn);
    /* USER CODE BEGIN TIM2_MspInit 1 */
  
    /* USER CODE END TIM2_MspInit 1 */
    }
  
  }
  
  /**
  * @brief TIM_Base MSP De-Initialization
  * This function freeze the hardware resources used in this example
  * @param htim_base: TIM_Base handle pointer
  * @retval None
  */
  void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base)
  {
    if(htim_base->Instance==TIM2)
    {
    /* USER CODE BEGIN TIM2_MspDeInit 0 */
  
    /* USER CODE END TIM2_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_TIM2_CLK_DISABLE();
  
      /**TIM2 GPIO Configuration
      PA3     ------> TIM2_CH4
      */
      HAL_GPIO_DeInit(ARD_D4_GPIO_Port, ARD_D4_Pin);
  
      /* TIM2 interrupt DeInit */
      HAL_NVIC_DisableIRQ(TIM2_IRQn);
    /* USER CODE BEGIN TIM2_MspDeInit 1 */
  
    /* USER CODE END TIM2_MspDeInit 1 */
    }
  
  }
  
  /**
  * @brief UART MSP Initialization
  * This function configures the hardware resources used in this example
  * @param huart: UART handle pointer
  * @retval None
  */
  void HAL_UART_MspInit(UART_HandleTypeDef* huart)
  {
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
    if(huart->Instance==USART1)
    {
    /* USER CODE BEGIN USART1_MspInit 0 */
  
    /* USER CODE END USART1_MspInit 0 */
    /** Initializes the peripherals clock
    */
      PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
      PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
      if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
      {
        Error_Handler();
      }
  
      /* Peripheral clock enable */
      __HAL_RCC_USART1_CLK_ENABLE();
  
      __HAL_RCC_GPIOB_CLK_ENABLE();
      /**USART1 GPIO Configuration
      PB6     ------> USART1_TX
      PB7     ------> USART1_RX
      */
      GPIO_InitStruct.Pin = ST_LINK_UART1_TX_Pin|ST_LINK_UART1_RX_Pin;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  
    /* USER CODE BEGIN USART1_MspInit 1 */
  
    /* USER CODE END USART1_MspInit 1 */
    }
    else if(huart->Instance==USART3)
    {
    /* USER CODE BEGIN USART3_MspInit 0 */
  
    /* USER CODE END USART3_MspInit 0 */
  
    /** Initializes the peripherals clock
    */
      PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART3;
      PeriphClkInit.Usart3ClockSelection = RCC_USART3CLKSOURCE_PCLK1;
      if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
      {
        Error_Handler();
      }
  
      /* Peripheral clock enable */
      __HAL_RCC_USART3_CLK_ENABLE();
  
      __HAL_RCC_GPIOD_CLK_ENABLE();
      /**USART3 GPIO Configuration
      PD8     ------> USART3_TX
      PD9     ------> USART3_RX
      */
      GPIO_InitStruct.Pin = INTERNAL_UART3_TX_Pin|INTERNAL_UART3_RX_Pin;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
      HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
  
    /* USER CODE BEGIN USART3_MspInit 1 */
  
    /* USER CODE END USART3_MspInit 1 */
    }
  
  }
  
  /**
  * @brief UART MSP De-Initialization
  * This function freeze the hardware resources used in this example
  * @param huart: UART handle pointer
  * @retval None
  */
  void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
  {
    if(huart->Instance==USART1)
    {
    /* USER CODE BEGIN USART1_MspDeInit 0 */
  
    /* USER CODE END USART1_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_USART1_CLK_DISABLE();
  
      /**USART1 GPIO Configuration
      PB6     ------> USART1_TX
      PB7     ------> USART1_RX
      */
      HAL_GPIO_DeInit(GPIOB, ST_LINK_UART1_TX_Pin|ST_LINK_UART1_RX_Pin);
  
    /* USER CODE BEGIN USART1_MspDeInit 1 */
  
    /* USER CODE END USART1_MspDeInit 1 */
    }
    else if(huart->Instance==USART3)
    {
    /* USER CODE BEGIN USART3_MspDeInit 0 */
  
    /* USER CODE END USART3_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_USART3_CLK_DISABLE();
  
      /**USART3 GPIO Configuration
      PD8     ------> USART3_TX
      PD9     ------> USART3_RX
      */
      HAL_GPIO_DeInit(GPIOD, INTERNAL_UART3_TX_Pin|INTERNAL_UART3_RX_Pin);
  
    /* USER CODE BEGIN USART3_MspDeInit 1 */
  
    /* USER CODE END USART3_MspDeInit 1 */
    }
  
  }
  
  /* USER CODE BEGIN 1 */
  
  /* USER CODE END 1 */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  