STCH-Board/Core/Src/sdmmc.c
2025-02-09 23:00:30 +08:00

142 lines
3.8 KiB
C

/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file sdmmc.c
* @brief This file provides code for the configuration
* of the SDMMC instances.
******************************************************************************
* @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 "sdmmc.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
MMC_HandleTypeDef hmmc2;
/* SDMMC2 init function */
void MX_SDMMC2_MMC_Init(void)
{
/* USER CODE BEGIN SDMMC2_Init 0 */
/* USER CODE END SDMMC2_Init 0 */
/* USER CODE BEGIN SDMMC2_Init 1 */
/* USER CODE END SDMMC2_Init 1 */
hmmc2.Instance = SDMMC2;
hmmc2.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING;
hmmc2.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
hmmc2.Init.BusWide = SDMMC_BUS_WIDE_4B;
hmmc2.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_DISABLE;
hmmc2.Init.ClockDiv = 0;
if (HAL_MMC_Init(&hmmc2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SDMMC2_Init 2 */
/* USER CODE END SDMMC2_Init 2 */
}
void HAL_MMC_MspInit(MMC_HandleTypeDef* mmcHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
if(mmcHandle->Instance==SDMMC2)
{
/* USER CODE BEGIN SDMMC2_MspInit 0 */
/* USER CODE END SDMMC2_MspInit 0 */
/** Initializes the peripherals clock
*/
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_SDMMC;
PeriphClkInitStruct.SdmmcClockSelection = RCC_SDMMCCLKSOURCE_PLL;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/* SDMMC2 clock enable */
__HAL_RCC_SDMMC2_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/**SDMMC2 GPIO Configuration
PB4 (NJTRST) ------> SDMMC2_D3
PB3 (JTDO/TRACESWO) ------> SDMMC2_D2
PD7 ------> SDMMC2_CMD
PD6 ------> SDMMC2_CK
PB14 ------> SDMMC2_D0
PB15 ------> SDMMC2_D1
*/
GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_3|GPIO_PIN_14|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF9_SDIO2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF11_SDIO2;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/* USER CODE BEGIN SDMMC2_MspInit 1 */
/* USER CODE END SDMMC2_MspInit 1 */
}
}
void HAL_MMC_MspDeInit(MMC_HandleTypeDef* mmcHandle)
{
if(mmcHandle->Instance==SDMMC2)
{
/* USER CODE BEGIN SDMMC2_MspDeInit 0 */
/* USER CODE END SDMMC2_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_SDMMC2_CLK_DISABLE();
/**SDMMC2 GPIO Configuration
PB4 (NJTRST) ------> SDMMC2_D3
PB3 (JTDO/TRACESWO) ------> SDMMC2_D2
PD7 ------> SDMMC2_CMD
PD6 ------> SDMMC2_CK
PB14 ------> SDMMC2_D0
PB15 ------> SDMMC2_D1
*/
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_4|GPIO_PIN_3|GPIO_PIN_14|GPIO_PIN_15);
HAL_GPIO_DeInit(GPIOD, GPIO_PIN_7|GPIO_PIN_6);
/* USER CODE BEGIN SDMMC2_MspDeInit 1 */
/* USER CODE END SDMMC2_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */