STM32G030_Dshot/Core/Src/stm32g0xx_hal_msp.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file         stm32g0xx_hal_msp.c
  * @brief        This file provides code for the MSP Initialization
  *               and de-Initialization codes.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 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.
  *
  ******************************************************************************
  */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */
extern DMA_HandleTypeDef hdma_tim3_ch1;

extern DMA_HandleTypeDef hdma_tim3_ch2;

/* 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 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==TIM3)
  {
  /* USER CODE BEGIN TIM3_MspInit 0 */

  /* USER CODE END TIM3_MspInit 0 */
    /* Peripheral clock enable */
    __HAL_RCC_TIM3_CLK_ENABLE();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**TIM3 GPIO Configuration
    PA7     ------> TIM3_CH2
    */
    GPIO_InitStruct.Pin = PWM_DSHOT_INPUT_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLDOWN;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF1_TIM3;
    HAL_GPIO_Init(PWM_DSHOT_INPUT_GPIO_Port, &GPIO_InitStruct);

    /* TIM3 DMA Init */
    /* TIM3_CH1 Init */
    hdma_tim3_ch1.Instance = DMA1_Channel1;
    hdma_tim3_ch1.Init.Request = DMA_REQUEST_TIM3_CH1;
    hdma_tim3_ch1.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_tim3_ch1.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_tim3_ch1.Init.MemInc = DMA_MINC_ENABLE;
    hdma_tim3_ch1.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
    hdma_tim3_ch1.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
    hdma_tim3_ch1.Init.Mode = DMA_CIRCULAR;
    hdma_tim3_ch1.Init.Priority = DMA_PRIORITY_LOW;
    if (HAL_DMA_Init(&hdma_tim3_ch1) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(htim_base,hdma[TIM_DMA_ID_CC1],hdma_tim3_ch1);

    /* TIM3_CH2 Init */
    hdma_tim3_ch2.Instance = DMA1_Channel2;
    hdma_tim3_ch2.Init.Request = DMA_REQUEST_TIM3_CH2;
    hdma_tim3_ch2.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_tim3_ch2.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_tim3_ch2.Init.MemInc = DMA_MINC_ENABLE;
    hdma_tim3_ch2.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
    hdma_tim3_ch2.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
    hdma_tim3_ch2.Init.Mode = DMA_CIRCULAR;
    hdma_tim3_ch2.Init.Priority = DMA_PRIORITY_LOW;
    if (HAL_DMA_Init(&hdma_tim3_ch2) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(htim_base,hdma[TIM_DMA_ID_CC2],hdma_tim3_ch2);

    /* TIM3 interrupt Init */
    HAL_NVIC_SetPriority(TIM3_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(TIM3_IRQn);
  /* USER CODE BEGIN TIM3_MspInit 1 */

  /* USER CODE END TIM3_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==TIM3)
  {
  /* USER CODE BEGIN TIM3_MspDeInit 0 */

  /* USER CODE END TIM3_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_TIM3_CLK_DISABLE();

    /**TIM3 GPIO Configuration
    PA7     ------> TIM3_CH2
    */
    HAL_GPIO_DeInit(PWM_DSHOT_INPUT_GPIO_Port, PWM_DSHOT_INPUT_Pin);

    /* TIM3 DMA DeInit */
    HAL_DMA_DeInit(htim_base->hdma[TIM_DMA_ID_CC1]);
    HAL_DMA_DeInit(htim_base->hdma[TIM_DMA_ID_CC2]);

    /* TIM3 interrupt DeInit */
    HAL_NVIC_DisableIRQ(TIM3_IRQn);
  /* USER CODE BEGIN TIM3_MspDeInit 1 */

  /* USER CODE END TIM3_MspDeInit 1 */
  }

}

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */