mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: CC0
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "esp_vfs.h"
|
|
#include "esp_vfs_fat.h"
|
|
#include "esp_system.h"
|
|
#include "sdkconfig.h"
|
|
|
|
static const char *TAG = "example";
|
|
|
|
|
|
// Mount path for the partition
|
|
const char *base_path = "/spiflash";
|
|
|
|
void app_main(void)
|
|
{
|
|
ESP_LOGI(TAG, "Mounting FAT filesystem");
|
|
// To mount device we need name of device partition, define base_path
|
|
// and allow format partition in case if it is new one and was not formatted before
|
|
const esp_vfs_fat_mount_config_t mount_config = {
|
|
.max_files = 4,
|
|
.format_if_mount_failed = false,
|
|
.allocation_unit_size = CONFIG_WL_SECTOR_SIZE
|
|
};
|
|
esp_err_t err = esp_vfs_fat_rawflash_mount(base_path, "storage", &mount_config);
|
|
if (err != ESP_OK) {
|
|
ESP_LOGE(TAG, "Failed to mount FATFS (%s)", esp_err_to_name(err));
|
|
return;
|
|
}
|
|
// Open file for reading
|
|
ESP_LOGI(TAG, "Reading file");
|
|
FILE *f = fopen("/spiflash/sub/test.txt", "rb");
|
|
if (f == NULL) {
|
|
ESP_LOGE(TAG, "Failed to open file for reading");
|
|
return;
|
|
}
|
|
char line[128];
|
|
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);
|
|
|
|
// Unmount FATFS
|
|
ESP_LOGI(TAG, "Unmounting FAT filesystem");
|
|
ESP_ERROR_CHECK( esp_vfs_fat_rawflash_unmount(base_path, "storage"));
|
|
|
|
ESP_LOGI(TAG, "Done");
|
|
}
|