liuguo09/littlefsPublic forked fromlittlefs-project/littlefs Notifications Fork1 Star0 Files master bd scripts tests .gitignore .travis.yml DESIGN.md LICENSE.md Makefile README.md SPEC.md lfs.c lfs.h lfs_util.c lfs_util.h
data to log: String dataString = ""; // read three sensors and append to the string: for (int analogPin = 0; analogPin < 3; analogPin++) { int sensor = analogRead(analogPin); dataString += String(sensor); if (analogPin < 2) { dataString += ","; } } // open the file....
// Name of the file stored as a null-terminated string. Limited to // LFS_NAME_MAX+1, which can be changed by redefining LFS_NAME_MAX to // reduce RAM. LFS_NAME_MAX is stored in superblock and must be // respected by other littlefs drivers. char name[LFS_NAME_MAX+1]; }; 1.2 ...
// File info structurestructlfs_info{// Type of the file, either LFS_TYPE_REG or LFS_TYPE_DIRuint8_ttype;// Size of the file, only valid for REG files. Limited to 32-bits.lfs_size_tsize;// Name of the file stored as a null-terminated string. Limited to// LFS_NAME_MAX+1, w...
(file.available()){lcd.write(file.read());}//resetcursor poisitionlcd.setCursor(0,0);//Close thefilefile.close();}void writeData(String data){//Open thefileFilefile= LittleFS.open("/SavedFile.txt","w");//Write to thefilefile.print(data);delay(1);//Close thefilefile.close();...
String data = Serial.readString(); Serial.println(data); Go to the “loop function” and create an “if statement” which triggers when the Serial receives some data from the serial monitor. Then read the data and store it in a string “data”, and to read the string we’ll use the...
only valid for REG files. Limited to 32-bits.lfs_size_tsize;// Name of the file stored as a null-terminated string. Limited to// LFS_NAME_MAX+1, which can be changed by redefining LFS_NAME_MAX to// reduce RAM. LFS_NAME_MAX is stored in superblock and must be// respected by oth...
only valid for REG files. Limited to 32-bits. lfs_size_t size; // Name of the file stored as a null-terminated string. Limited to // LFS_NAME_MAX+1, which can be changed by redefining LFS_NAME_MAX to // reduce RAM. LFS_NAME_MAX is stored in superblock and must be // respecte...
// info struct. Limited to <= 1022. Stored in superblock and must be // respected by other littlefs drivers.#ifndef LFS_NAME_MAX #define LFS_NAME_MAX 255 #endif // Maximum size of a file in bytes, may be redefined to limit to support other ...
} lfs_file_t; 结构体lfs_config用于提供初始化littlefs文件系统的一些配置。其中.read,.prog,.erase,.sync分别对应该硬件平台上的底层的读写\擦除\同步等接口。 read_size 每次读取的字节数,可以比物理读单元大以改善性能,这个数值决定了读缓存的大小,但值太大会带来更多的内存消耗。