[0;32mI (410) example: Reading file /sdcard/foo.txt [0m [0;32mI (420) example: Read from file: 'Hello 51U2A!' [0m [0;32mI (420) gpio: GPIO[2]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 [0m [0;32mI (420) example: Card unmounted ...
while(file.available()){ Serial.write(file.read()); } file.close(); } void writeFile(fs::FS &fs, const char * path, const char * message){ Serial.printf("Writing file: %s\n", path); File file = fs.open(path, FILE_WRITE); if(!file){ Serial.println("Failed to open file fo...
Serial.println("Failed to open file for reading"); return; } Serial.print("Read from file: "); while(file.available()){ Serial.write(file.read()); } file.close(); } void writeFile(fs::FS &fs, const char * path, const char * message){ Serial.printf("Writing file: %s\n", pa...
I (630) example: Read from file:'Hello SS16G!'I (630) example: Card unmounted 给开发板断电,取下sd卡,用读卡器在电脑上查看: 5.源代码main() staticconstchar*TAG ="example";#defineMOUNT_POINT"/sdcard"voidapp_main(void){esp_err_tret;// Options for mounting the filesystem.// If format_...
挂载成功后,我们可以使用标准的C文件操作接口对SD卡进行读写操作。 #include<stdio.h>voidwrite_file(){FILE*f=fopen("/sdcard/hello.txt","w");if(f==NULL){ESP_LOGE(TAG,"Failed to open file for writing");return;}fprintf(f,"Hello, ESP32 SD Card!");fclose(f);}voidread_file(){FILE*f...
#include "FS.h" // SD Card ESP32 #include "SD_MMC.h" // SD Card ESP32 #include "soc/soc.h" // Disable brownour problems #include "soc/rtc_cntl_reg.h" // Disable brownour problems #include "driver/rtc_io.h" #include <EEPROM.h> // read and write from flash memory ...
= 0:raise OSError("no response from SD card")csd = bytearray(16)self.readinto(csd)if csd[...
ESP_LOGI(TAG, "Read from file: '%s'", line); return ESP_OK; } void app_main(void) { esp_err_t ret; // Options for mounting the filesystem. // If format_if_mount_failed is set to true, SD card will be partitioned and ...
1,/*Copy this file as "lv_port_fs.h" and set this value to "1" to enable content*/,.c文件类似 2,然后在.h文件申明初始化函数,这个文件类容就这么多啦。 3,.c文件,设置sd卡的名字,应该算是 4,.c文件,这个结构体定义的话,直接使用ff.h里面的变量,如下一段代码所示: ...
ESP_LOGI(TAG, "Read from file: '%s'", line); return ESP_OK; } void app_main(void) { esp_err_t ret; // Options for mounting the filesystem. // If format_if_mount_failed is set to true, SD card will be partitioned and ...