使用SDMMC 外设,启用 4 位模式,最大频率设置为 20MHz 2.2 SDMMC_SLOT_CONFIG_DEFAULT SDMMC_SLOT_CONFIG_DEFAULT() 定义SDMMC 主机插槽默认配置的宏 以下FAT 文件系统接口位于fatfs/vfs/esp_vfs_fat.h。 2.3 esp_vfs_fat_sdmmc_mount 2.4 esp_vfs_fat_sdcard_unmount 以下SDMMC 接口位于sdmmc/include/sd...
E (518) vfs_fat_sdmmc: mount_to_vfs failed (0xffffffff).E (518) SD_EMMC: Failed to moun...
esp_vfs_fat_sdmmc_mount_config_t mount_config = { #ifdef CONFIG_EXAMPLE_FORMAT_IF_MOUNT_FAILED .format_if_mount_failed = true, #else .format_if_mount_failed = false, #endif // EXAMPLE_FORMAT_IF_MOUNT_FAILED .max_files = 5, .allocation_unit_size = 16 * 1024 }; sdmmc_card_t *...
有sdmmc和sdspi两个例程,我们使用sdmmc: 国内镜像: gitee.com/EspressifSyst 说明 此示例演示如何将SD卡与ESP设备一起使用。示例执行以下步骤: 使用“all-in-one”esp_vfs_fat_sdspi_mount函数: 初始化SDSPI外围设备 探测并初始化连接到SPI总线的卡(DMA通道1、MOSI、MISO和CLK线、芯片特定SPI主机id) 使用FATFS...
2.6 esp_vfs_fat_sdcard_unmount 以下SDMMC 接口位于 sdmmc/include/sdmmc_cmd.h。 2.7 sdmmc_card_print_info 三、编程流程 SPI总线初始化 esp_vfs_fat_sdspi_mount() 挂载文件系统 使用FATFS库安装FAT文件系统(如果无法安装文件系统,则使用格式化卡); ...
esp_vfs_fat_sdmmc_mount_config_t mount_config = { #ifdef CONFIG_EXAMPLE_FORMAT_IF_MOUNT_FAILED .format_if_mount_failed = true, #else .format_if_mount_failed = false, #endif // EXAMPLE_FORMAT_IF_MOUNT_FAILED .max_files = 5,
使用“一体式” esp_vfs_fat_sdmmc_mount()函数进行初始化: 初始化SDMMC外设; 检测并初始化连接到SD/MMC插槽1的卡(HS2_CMD、HS2_CLK、HS2_D0、HS2_D1、HS2_D2、HS2_D3线); 使用FATFS库安装FAT文件系统(如果无法安装文件系统,则使用格式化卡); ...
esp_err_t ret = esp_vfs_fat_sdmmc_mount("/SDCARD", &host, &slot_config, &mount_config, &card); if (ret == ESP_OK) { mkdir("/SDCARD/APM", 0777); printf("sdcard is mounted\n"); update_fw(); return true; } else { ...
esp_vfs_fat_sdmmc_mount_config_t mount_config = { #ifdef CONFIG_EXAMPLE_FORMAT_IF_MOUNT_FAILED .format_if_mount_failed = true, #else .format_if_mount_failed = false, #endif // EXAMPLE_FORMAT_IF_MOUNT_FAILED .max_files = 5,
esp_vfs_fat_sdmmc_mount_config_t mount_config = { .format_if_mount_failed = false, .max_files = 5, .allocation_unit_size = 4 * 1024 }; esp_err_t ret = esp_vfs_fat_sdmmc_mount("/SDCARD", &host, &slot_config, &mount_config, &card); ...