Estoy intentando utilizar LittleSF para tener un sencillo fichero de configuración en un Nano ESP32. He empezado por el ejemplo que viene incorporado (LittleFS_test). El skecth se compila correcto pero al ejecutarlo indica el texto de que falla el montar LittleFS. Adjunto el ino, que es el original al que simplemente he añadido dos líneas para asegurar la conexión con el serial.
No sé si falta algún proceso previo para definir zona de FS. ¿Alguna idea?
#include <Arduino.h>
#include "FS.h"
#include <LittleFS.h>
/* You only need to format LittleFS the first time you run a
test or else use the LITTLEFS plugin to create a partition
https://github.com/lorol/arduino-esp32littlefs-plugin
If you test two partitions, you need to use a custom
partition.csv file, see in the sketch folder */
//#define TWOPART
#define FORMAT_LITTLEFS_IF_FAILED true
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
Serial.printf("Listing directory: %s\r\n", dirname);
File root = fs.open(dirname);
if(!root){
Serial.println("- failed to open directory");
return;
}
if(!root.isDirectory()){
Serial.println(" - not a directory");
return;
}
File file = root.openNextFile();
while(file){
if(file.isDirectory()){
Serial.print(" DIR : ");
Serial.println(file.name());
if(levels){
listDir(fs, file.path(), levels -1);
}
} else {
Serial.print(" FILE: ");
Serial.print(file.name());
Serial.print("\tSIZE: ");
Serial.println(file.size());
}
file = root.openNextFile();
}
}
void createDir(fs::FS &fs, const char * path){
Serial.printf("Creating Dir: %s\n", path);
if(fs.mkdir(path)){
Serial.println("Dir created");
} else {
Serial.println("mkdir failed");
}
}
void removeDir(fs::FS &fs, const char * path){
Serial.printf("Removing Dir: %s\n", path);
if(fs.rmdir(path)){
Serial.println("Dir removed");
} else {
Serial.println("rmdir failed");
}
}
void readFile(fs::FS &fs, const char * path){
Serial.printf("Reading file: %s\r\n", path);
File file = fs.open(path);
if(!file || file.isDirectory()){
Serial.println("- failed to open file for reading");
return;
}
Serial.println("- 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\r\n", path);
File file = fs.open(path, FILE_WRITE);
if(!file){
Serial.println("- failed to open file for writing");
return;
}
if(file.print(message)){
Serial.println("- file written");
} else {
Serial.println("- write failed");
}
file.close();
}
void appendFile(fs::FS &fs, const char * path, const char * message){
Serial.printf("Appending to file: %s\r\n", path);
File file = fs.open(path, FILE_APPEND);
if(!file){
Serial.println("- failed to open file for appending");
return;
}
if(file.print(message)){
Serial.println("- message appended");
} else {
Serial.println("- append failed");
}
file.close();
}
void renameFile(fs::FS &fs, const char * path1, const char * path2){
Serial.printf("Renaming file %s to %s\r\n", path1, path2);
if (fs.rename(path1, path2)) {
Serial.println("- file renamed");
} else {
Serial.println("- rename failed");
}
}
void deleteFile(fs::FS &fs, const char * path){
Serial.printf("Deleting file: %s\r\n", path);
if(fs.remove(path)){
Serial.println("- file deleted");
} else {
Serial.println("- delete failed");
}
}
// SPIFFS-like write and delete file, better use #define CONFIG_LITTLEFS_SPIFFS_COMPAT 1
void writeFile2(fs::FS &fs, const char * path, const char * message){
if(!fs.exists(path)){
if (strchr(path, '/')) {
Serial.printf("Create missing folders of: %s\r\n", path);
char *pathStr = strdup(path);
if (pathStr) {
char *ptr = strchr(pathStr, '/');
while (ptr) {
*ptr = 0;
fs.mkdir(pathStr);
*ptr = '/';
ptr = strchr(ptr+1, '/');
}
}
free(pathStr);
}
}
Serial.printf("Writing file to: %s\r\n", path);
File file = fs.open(path, FILE_WRITE);
if(!file){
Serial.println("- failed to open file for writing");
return;
}
if(file.print(message)){
Serial.println("- file written");
} else {
Serial.println("- write failed");
}
file.close();
}
void deleteFile2(fs::FS &fs, const char * path){
Serial.printf("Deleting file and empty folders on path: %s\r\n", path);
if(fs.remove(path)){
Serial.println("- file deleted");
} else {
Serial.println("- delete failed");
}
char *pathStr = strdup(path);
if (pathStr) {
char *ptr = strrchr(pathStr, '/');
if (ptr) {
Serial.printf("Removing all empty folders on path: %s\r\n", path);
}
while (ptr) {
*ptr = 0;
fs.rmdir(pathStr);
ptr = strrchr(pathStr, '/');
}
free(pathStr);
}
}
void testFileIO(fs::FS &fs, const char * path){
Serial.printf("Testing file I/O with %s\r\n", path);
static uint8_t buf[512];
size_t len = 0;
File file = fs.open(path, FILE_WRITE);
if(!file){
Serial.println("- failed to open file for writing");
return;
}
size_t i;
Serial.print("- writing" );
uint32_t start = millis();
for(i=0; i<2048; i++){
if ((i & 0x001F) == 0x001F){
Serial.print(".");
}
file.write(buf, 512);
}
Serial.println("");
uint32_t end = millis() - start;
Serial.printf(" - %u bytes written in %u ms\r\n", 2048 * 512, end);
file.close();
file = fs.open(path);
start = millis();
end = start;
i = 0;
if(file && !file.isDirectory()){
len = file.size();
size_t flen = len;
start = millis();
Serial.print("- reading" );
while(len){
size_t toRead = len;
if(toRead > 512){
toRead = 512;
}
file.read(buf, toRead);
if ((i++ & 0x001F) == 0x001F){
Serial.print(".");
}
len -= toRead;
}
Serial.println("");
end = millis() - start;
Serial.printf("- %u bytes read in %u ms\r\n", flen, end);
file.close();
} else {
Serial.println("- failed to open file for reading");
}
}
void setup(){
Serial.begin(115200);
while(!Serial){;}
delay(10000);
#ifdef TWOPART
if(!LittleFS.begin(FORMAT_LITTLEFS_IF_FAILED, "/lfs2", 5, "part2")){
Serial.println("part2 Mount Failed");
return;
}
appendFile(LittleFS, "/hello0.txt", "World0!\r\n");
readFile(LittleFS, "/hello0.txt");
LittleFS.end();
Serial.println( "Done with part2, work with the first lfs partition..." );
#endif
if(!LittleFS.begin(FORMAT_LITTLEFS_IF_FAILED)){
Serial.println("LittleFS Mount Failed");
return;
}
Serial.println( "SPIFFS-like write file to new path and delete it w/folders" );
writeFile2(LittleFS, "/new1/new2/new3/hello3.txt", "Hello3");
listDir(LittleFS, "/", 3);
deleteFile2(LittleFS, "/new1/new2/new3/hello3.txt");
listDir(LittleFS, "/", 3);
createDir(LittleFS, "/mydir");
writeFile(LittleFS, "/mydir/hello2.txt", "Hello2");
listDir(LittleFS, "/", 1);
deleteFile(LittleFS, "/mydir/hello2.txt");
removeDir(LittleFS, "/mydir");
listDir(LittleFS, "/", 1);
writeFile(LittleFS, "/hello.txt", "Hello ");
appendFile(LittleFS, "/hello.txt", "World!\r\n");
readFile(LittleFS, "/hello.txt");
renameFile(LittleFS, "/hello.txt", "/foo.txt");
readFile(LittleFS, "/foo.txt");
deleteFile(LittleFS, "/foo.txt");
testFileIO(LittleFS, "/test.txt");
deleteFile(LittleFS, "/test.txt");
Serial.println( "Test complete" );
}
void loop(){
}
El IDE que utilizo es el 2.3.3.
