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...
void readFile(fs::FS &fs, const char * path){ Serial.printf("Reading file: %s\n", path); File file = fs.open(path,FILE_READ);//FILE_READ 只读模式 if(!file){ Serial.println("Failed to open file for reading"); return; } Serial.print("Read from file: "); while(file.available...
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_...
SD.cardType(); mkdir 创建文件夹 fs.mkdir(path) rmdir 删除文件 fs.rmdir(path) read 读取文件 File file = fs.open(path); ... while(file.available()){ Serial.write(file.read()); } file.close(); write 写文件 File file = fs.open(path, FILE_WRITE); if(!file){ Serial.println("Fai...
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); } void card_unmount(void) { // All done, unmount partition and disable SDMMC peripheral esp_vfs_fat_sdcard_unmount(mount_point, card); // All done, unmount partition and disable SDMMC or SPI peripheral ...
根据examples\storage\sd_card中的例程修改 默认是4-wire 模式,1-wire 模式修改slot_config.width = 1; /* SD card and FAT filesystem example. This example code is in the Public Domain (or CC0 licensed, at your option.) Unless required by applicable law or agreed to in writing, this ...
Serial.print("Read from file: ");while(file.available()){ //这里就是读取出来的内容通过串口打印...
Name:SD Type:SDSC Speed:20MHz Size:121MB I(1436)example:Opening file/sdcard/hello.txt I(1446)example:File written I(1450)example:Renaming file/sdcard/hello.txtto/sdcard/foo.txt I(1452)example:Reading file/sdcard/foo.txt I(1456)example:Read from file:'Hello SD !' ...
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 ...