freertos_f407/User/board/sd.c

#include "sd.h"
#include "sdio.h"
SD_HandleTypeDef _handle;

#define NUM_OF_BLOCKS 1
#define TEST_ADDRESS 0
#define TEST_BLOCK_SIZE ((BLOCKSIZE * NUM_OF_BLOCKS) >> 2) // 定义数据大小,SD块大小为512字节，因为是32位的数组，所以这里除以4

BOOL sd_test(void)
{
    BOOL res = FALSE;
    uint32_t i = 0;
    uint32_t write_buffer[TEST_BLOCK_SIZE];
    uint32_t read_buffer[TEST_BLOCK_SIZE];
    for (i = 0; i < TEST_BLOCK_SIZE; i++) // 将要写入SD卡的数据写入数组
    {
        write_buffer[i] = i + 3;
    }

    res = sd_erase(TEST_ADDRESS, NUM_OF_BLOCKS);
    if (res == FALSE)
    {
        return FALSE;
    }
    while (sd_get_card_state() == FALSE)
        ;

    res = sd_write_blocks(write_buffer, TEST_ADDRESS, NUM_OF_BLOCKS); // 写入数据
    if (res == FALSE)
    {
        return FALSE;
    }
    while (sd_get_card_state() == FALSE)
        ;

    res = sd_read_blocks(read_buffer, TEST_ADDRESS, NUM_OF_BLOCKS); // 读取数据
    if (res == FALSE)
    {
        return FALSE;
    }
    while (sd_get_card_state() == FALSE)
        ;

    // 验证写入和读取的数据是否一致
    for (i = 0; i < TEST_BLOCK_SIZE; i++)
    {
        if (read_buffer[i] != write_buffer[i])
        {
            return FALSE;
        }
    }

    return TRUE;
}

void sd_info(void)
{
    // SD卡信息结构体变量
    HAL_SD_CardInfoTypeDef cardInfo;
    HAL_StatusTypeDef res = HAL_SD_GetCardInfo(&_handle, &cardInfo);
    if (res != HAL_OK)
    {
        return;
    }
}

void sd_init(void)
{
    // MX_SDIO_SD_Init有问题，这里重新初始化
    _handle.Instance = SDIO;
    _handle.Init.ClockEdge = SDIO_CLOCK_EDGE_RISING;
    _handle.Init.ClockBypass = SDIO_CLOCK_BYPASS_DISABLE;
    _handle.Init.ClockPowerSave = SDIO_CLOCK_POWER_SAVE_DISABLE;
    _handle.Init.BusWide = SDIO_BUS_WIDE_1B; // CUBEMX生成默认是4B，此处改为1B
    _handle.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
    _handle.Init.ClockDiv = 4;

    if (HAL_SD_Init(&_handle) != HAL_OK)
    {
        Error_Handler();
    }
    if (HAL_SD_ConfigWideBusOperation(&_handle, SDIO_BUS_WIDE_4B) != HAL_OK)
    {
        Error_Handler();
    }
    sd_info();
}

/**
 * @brief 获取SD卡的状态
 *
 * 该函数用于获取SD卡的当前状态，并返回一个布尔值表示SD卡是否处于传输状态。
 *
 * @return BOOL - 如果SD卡处于传输状态，则返回TRUE，否则返回FALSE。
 */
BOOL sd_get_card_state(void)
{
    HAL_SD_CardStateTypeDef state = HAL_SD_GetCardState(&_handle);
    return (state == HAL_SD_CARD_TRANSFER) ? TRUE : FALSE;
}

/**
 * @brief 擦除SD卡指定地址范围的数据
 *
 * 该函数用于擦除SD卡上从指定的起始地址到结束地址之间的数据。
 *
 * @param start_address - 擦除操作的起始地址
 * @param end_address - 擦除操作的结束地址
 * @return BOOL - 如果擦除操作成功，则返回TRUE，否则返回FALSE。
 */
BOOL sd_erase(uint32_t start_address, uint32_t end_address)
{
    if (HAL_SD_Erase(&_handle, start_address, end_address) != HAL_OK)
    {
        return FALSE;
    }
    else
    {
        return TRUE;
    }
}

BOOL sd_write_blocks(uint32_t *data, uint32_t write_address, uint32_t blocks)
{
    if (HAL_SD_WriteBlocks(&_handle, (uint8_t *)data, write_address, blocks, 1000) != HAL_OK)
    {
        return FALSE;
    }
    else
    {
        return TRUE;
    }
}

BOOL sd_read_blocks(uint32_t *data, uint32_t read_address, uint32_t blocks)
{
    if (HAL_SD_ReadBlocks(&_handle, (uint8_t *)data, read_address, blocks, 1000) != HAL_OK)
    {
        return FALSE;
    }
    else
    {
        return TRUE;
    }
}

/**
 * @brief 使用DMA方式从SD卡读取多个数据块
 *
 * 该函数用于通过DMA方式从SD卡的指定地址读取多个数据块，并将数据存储在指定的缓冲区中。
 *
 * @param data - 指向存储读取数据的缓冲区的指针
 * @param read_address - 读取操作的起始地址
 * @param blocks - 要读取的数据块数量
 * @return BOOL - 如果读取操作成功，则返回TRUE，否则返回FALSE。
 */
BOOL sd_read_blocks_dma(uint32_t *data, uint32_t read_address, uint32_t blocks)
{
    if (HAL_SD_ReadBlocks_DMA(&_handle, (uint8_t *)data, read_address, blocks) != HAL_OK)
    {
        return FALSE;
    }
    else
    {
        return TRUE;
    }
}

/**
 * @brief 使用DMA方式向SD卡写入多个数据块
 *
 * 该函数用于通过DMA方式向SD卡的指定地址写入多个数据块。
 *
 * @param data - 指向要写入数据的缓冲区的指针
 * @param write_address - 写入操作的起始地址
 * @param blocks - 要写入的数据块数量
 * @return BOOL - 如果写入操作成功，则返回TRUE，否则返回FALSE。
 */
BOOL sd_write_blocks_dma(uint32_t *data, uint32_t write_address, uint32_t blocks)
{
    if (HAL_SD_WriteBlocks_DMA(&_handle, (uint8_t *)data, write_address, blocks) != HAL_OK)
    {
        return FALSE;
    }
    else
    {
        return TRUE;
    }
}

/**
 * @brief BSP Tx Transfer completed callbacks
 * @retval None
 */
__weak void BSP_SD_WriteCpltCallback(void)
{
}

/**
 * @brief BSP Rx Transfer completed callbacks
 * @retval None
 */
__weak void BSP_SD_ReadCpltCallback(void)
{
}

/**
 * @brief Tx Transfer completed callbacks
 * @param _handle: SD handle
 * @retval None
 */
void HAL_SD_TxCpltCallback(SD_HandleTypeDef *_handle)
{
    BSP_SD_WriteCpltCallback();
}

/**
 * @brief Rx Transfer completed callbacks
 * @param _handle: SD handle
 * @retval None
 */
void HAL_SD_RxCpltCallback(SD_HandleTypeDef *_handle)
{
    BSP_SD_ReadCpltCallback();
}