128 lines
4.4 KiB
C
128 lines
4.4 KiB
C
#include "sdcard.h"
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void writeFile(FILE *f, const void *data, size_t size)
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{
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if (f != NULL)
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{
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fwrite(data, size, 1, f);
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fflush(f);
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fsync(fileno(f)); // Critical: this ensures actual write to disk
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}
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}
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FILE *csvFile = NULL;
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FILE *sensFile = NULL;
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void initSD(void)
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{
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esp_err_t ret;
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// Options for mounting the filesystem.
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// If format_if_mount_failed is set to true, SD card will be partitioned and
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// formatted in case when mounting fails.
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esp_vfs_fat_sdmmc_mount_config_t mount_config = {
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.format_if_mount_failed = true,
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.max_files = 100,
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.allocation_unit_size = 16 * 1024};
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sdmmc_card_t *card;
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const char mount_point[] = MOUNT_POINT;
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ESP_LOGI(TAGSD, "Initializing SD card");
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// Use settings defined above to initialize SD card and mount FAT filesystem.
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// Note: esp_vfs_fat_sdmmc/sdspi_mount is all-in-one convenience functions.
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// Please check its source code and implement error recovery when developing
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// production applications.
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ESP_LOGI(TAGSD, "Using SPI peripheral");
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// By default, SD card frequency is initialized to SDMMC_FREQ_DEFAULT (20MHz)
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// For setting a specific frequency, use host.max_freq_khz (range 400kHz - 20MHz for SDSPI)
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// Example: for fixed frequency of 10MHz, use host.max_freq_khz = 10000;
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sdmmc_host_t host = SDSPI_HOST_DEFAULT();
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host.slot = SPI3_HOST;
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// This initializes the slot without card detect (CD) and write protect (WP) signals.
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// Modify slot_config.gpio_cd and slot_config.gpio_wp if your board has these signals.
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sdspi_device_config_t slot_config = SDSPI_DEVICE_CONFIG_DEFAULT();
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slot_config.gpio_cs = HSPI_SD_CS;
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slot_config.host_id = host.slot;
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ESP_LOGI(TAGSD, "Mounting filesystem");
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ret = esp_vfs_fat_sdspi_mount(mount_point, &host, &slot_config, &mount_config, &card);
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if (ret != ESP_OK)
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{
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if (ret == ESP_FAIL)
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{
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ESP_LOGE(TAGSD, "Failed to mount filesystem. "
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"If you want the card to be formatted, set the CONFIG_EXAMPLE_FORMAT_IF_MOUNT_FAILED menuconfig option.");
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}
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else
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{
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ESP_LOGE(TAGSD, "Failed to initialize the card (%s). "
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"Make sure SD card lines have pull-up resistors in place.",
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esp_err_to_name(ret));
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}
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return;
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}
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ESP_LOGI(TAGSD, "Filesystem mounted");
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// Card has been initialized, print its properties
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sdmmc_card_print_info(stdout, card);
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int index = 0;
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FILE *f = fopen(COUNTER_FILE, "r");
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if (f)
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{
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fscanf(f, "%d", &index);
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fclose(f);
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}
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// === 2. Increment and write back ===
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f = fopen(COUNTER_FILE, "w");
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if (!f)
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{
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ESP_LOGE(TAGSD, "Failed to open counter file");
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return;
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}
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index++;
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if (f != NULL)
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{
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fprintf(f, "%d", index);
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fflush(f);
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fsync(fileno(f)); // Critical: this ensures actual write to disk
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fclose(f);
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ESP_LOGI(TAGSD, "Index is now %d", index);
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}
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// === 3. Make folder ===
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char folder_path[MAX_PATH - 20];
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snprintf(folder_path, MAX_PATH, MOUNT_POINT "/%d", index);
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mkdir(folder_path, 0777); // safe if exists already
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// === 4. Create CSV and BIN ===
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char csv_path[MAX_PATH], bin_path[MAX_PATH];
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snprintf(csv_path, MAX_PATH, "%s/data.csv", folder_path);
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snprintf(bin_path, MAX_PATH, "%s/data.bin", folder_path);
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csvFile = fopen(csv_path, "w");
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sensFile = fopen(bin_path, "wb");
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if (csvFile != NULL)
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{
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fprintf(csvFile,
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"missionTimer,packetIndex,telemetryIndex,packetType,"
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"accX,accY,accZ,gyroX,gyroY,gyroZ,magX,magY,magZ,accTemp,"
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"eCO2,tVOC,currentCCS,rawCCS,"
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"volts,current,power,rawtemperature,rawhumidity,rawpressure,rawgas,"
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"gasValid,heaterStable,gasRange,gasIndex,"
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"airTemp,relHumidity,baroPressure,gasResistance,"
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"iaqScore,tempScore,humidityScore,gasScore,"
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"gpsTime,latitude,longitude,altitude,fixQuality,numSatellites,date,speed,"
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"predLatitude,predLongitude,predAltitude,"
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"NH3,CO,NO2,UVC,"
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"currentServoA,targetServoA,currentServoB,targetServoB,"
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"presentDevices\n");
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fflush(csvFile);
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fsync(fileno(csvFile)); // Critical: this ensures actual write to disk
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}
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} |