I'm currently using IDF last version.
I'm trying to run example storage/sd_card.
Sdcard example seem to be good. I want to create new folder using command "mkdir", but mkdir alway return error -1.
All line below is my program and log.
Code
Code: Select all
void app_main(void)
{
ESP_LOGI(TAG, "Initializing SD card");
#if 1
ESP_LOGI(TAG, "Using SDMMC peripheral");
sdmmc_host_t host = SDMMC_HOST_DEFAULT();
// This initializes the slot without card detect (CD) and write protect (WP) signals.
// Modify slot_config.gpio_cd and slot_config.gpio_wp if your board has these signals.
sdmmc_slot_config_t slot_config = SDMMC_SLOT_CONFIG_DEFAULT();
// To use 1-line SD mode, uncomment the following line:
// slot_config.width = 1;
// GPIOs 15, 2, 4, 12, 13 should have external 10k pull-ups.
// Internal pull-ups are not sufficient. However, enabling internal pull-ups
// does make a difference some boards, so we do that here.
gpio_set_pull_mode(15, GPIO_PULLUP_ONLY); // CMD, needed in 4- and 1- line modes
gpio_set_pull_mode(2, GPIO_PULLUP_ONLY); // D0, needed in 4- and 1-line modes
gpio_set_pull_mode(4, GPIO_PULLUP_ONLY); // D1, needed in 4-line mode only
gpio_set_pull_mode(12, GPIO_PULLUP_ONLY); // D2, needed in 4-line mode only
gpio_set_pull_mode(13, GPIO_PULLUP_ONLY); // D3, needed in 4- and 1-line modes
#else
ESP_LOGI(TAG, "Using SPI peripheral");
sdmmc_host_t host = SDSPI_HOST_DEFAULT();
sdspi_slot_config_t slot_config = SDSPI_SLOT_CONFIG_DEFAULT();
slot_config.gpio_miso = PIN_NUM_MISO;
slot_config.gpio_mosi = PIN_NUM_MOSI;
slot_config.gpio_sck = PIN_NUM_CLK;
slot_config.gpio_cs = PIN_NUM_CS;
// This initializes the slot without card detect (CD) and write protect (WP) signals.
// Modify slot_config.gpio_cd and slot_config.gpio_wp if your board has these signals.
#endif //USE_SPI_MODE
// Options for mounting the filesystem.
// If format_if_mount_failed is set to true, SD card will be partitioned and
// formatted in case when mounting fails.
esp_vfs_fat_sdmmc_mount_config_t mount_config = {
.format_if_mount_failed = false,
.max_files = 5,
.allocation_unit_size = 16 * 1024
};
// Use settings defined above to initialize SD card and mount FAT filesystem.
// Note: esp_vfs_fat_sdmmc_mount is an all-in-one convenience function.
// Please check its source code and implement error recovery when developing
// production applications.
sdmmc_card_t* card;
esp_err_t ret = esp_vfs_fat_sdmmc_mount("/sdcard", &host, &slot_config, &mount_config, &card);
if (ret != ESP_OK) {
if (ret == ESP_FAIL) {
ESP_LOGE(TAG, "Failed to mount filesystem. "
"If you want the card to be formatted, set format_if_mount_failed = true.");
} else {
ESP_LOGE(TAG, "Failed to initialize the card (%s). "
"Make sure SD card lines have pull-up resistors in place.", esp_err_to_name(ret));
}
return;
}
// Card has been initialized, print its properties
sdmmc_card_print_info(stdout, card);
// Use POSIX and C standard library functions to work with files.
// First create a file.
ESP_LOGI(TAG, "Opening file");
FILE* f = fopen("/sdcard/hello.txt", "w");
if (f == NULL) {
ESP_LOGE(TAG, "Failed to open file for writing");
return;
}
fprintf(f, "Hello %s!\n", card->cid.name);
fclose(f);
ESP_LOGI(TAG, "File written");
// Check if destination file exists before renaming
struct stat st;
if (stat("/sdcard/foo.txt", &st) == 0) {
// Delete it if it exists
unlink("/sdcard/foo.txt");
}
// Rename original file
ESP_LOGI(TAG, "Renaming file");
if (rename("/sdcard/hello.txt", "/sdcard/foo.txt") != 0) {
ESP_LOGE(TAG, "Rename failed");
return;
}
// Open renamed file for reading
ESP_LOGI(TAG, "Reading file");
f = fopen("/sdcard/foo.txt", "r");
if (f == NULL) {
ESP_LOGE(TAG, "Failed to open file for reading");
return;
}
char line[64];
fgets(line, sizeof(line), f);
fclose(f);
// strip newline
char* pos = strchr(line, '\n');
if (pos) {
*pos = '\0';
}
ESP_LOGI(TAG, "Read from file: '%s'", line);
int mk_ret = mkdir("/sdcard/new_fd_mkdir", 0775);
ESP_LOGI(TAG, "mkdir ret %d", mk_ret);
mk_ret = mkdir("/new_fd_mkdir", 0775);
ESP_LOGI(TAG, "mkdir 2 ret %d", mk_ret);
mk_ret = mkdir("new_fd_mkdir", 0775);
ESP_LOGI(TAG, "mkdir 3 ret %d", mk_ret);
mk_ret = mkdir("sdcard/new_fd_mkdir", 0775);
ESP_LOGI(TAG, "mkdir ret 4 %d", mk_ret);
// All done, unmount partition and disable SDMMC or SPI peripheral
esp_vfs_fat_sdmmc_unmount();
ESP_LOGI(TAG, "Card unmounted");
}Code: Select all
Name: SA02G
Type: SDSC
Speed: 20 MHz
Size: 1898MB
I (357) example: Opening file
I (377) example: File written
I (397) example: Renaming file
I (407) example: Reading file
I (407) example: Read from file: 'Hello SA02G!'
I (407) example: mkdir ret -1
I (407) example: mkdir 2 ret -1
I (407) example: mkdir 3 ret -1
I (417) example: mkdir ret 4 -1
I (417) example: Card unmountedPlease help me