thanks !
I will look at it

New results : Initializing ... Initializing SD card Initializing SPIFF Initializations done ---- Running tests with a non existing file on : SD card : r a w r+ a+ w+ SPIFFS : r a w r+ a+ w+ Running tests with a existing empty file on : SD card : r a w r+ a+ w+ SPIFFS : r a w r+ a+ w+ Running tests w...

summary Initializing SPIFF Initializing SD card Initializations done Support Mode Open Size Position Available Size Position Available SD card r OK SD card a OK NOK OK NOK OK OK OK SD card w OK NOK OK NOK OK OK OK SPIFFS r NOK SPIFFS a OK NOK OK NOK NOK OK NOK SPIFFS w OK NOK OK NOK NOK OK NOK Resul...

Hi, can somebody explain me the reasons for such different types when manipulating Files and not only one : size_t below, we have : size_t (unsigned int), uint32_t , int :?: FS.h extract size_t write(uint8_t) override; size_t write(const uint8_t *buf, size_t size) override; int available() override;...

I extended the previous program to also tests SPIFFS and various file modes, the results are badly impressive ... :o :shock: To me there are clearly bugs, for example on SPIFFS, opening a non existing file in read mode will return a File object, when it clearly should not ! If a specialist of this c...

Hello, this is the rework of my previous post "Incorrect File object information after file creation on a SD card and on SPIFFS" I extended the investigation and modified the test program that lead me to conclude that the implementation of the Arduino ESP32 file manipulation do not comply with Posix...

thanks @ESp_iggr

I switched to from FILE_WRITE to "a+" , and no more error ...

in the file <FS.h> the only possible options for open are : namespace fs { #define FILE_READ "r" #define FILE_WRITE "w" #define FILE_APPEND "a" class File; Here is the output of the above program : initialization done Openning file : /f1.txt Writing to file : /f1.txt Current Position : 32 New Positi...

Hello the following code end up with a read returning -1 I don't see what I am missing here ... :( if you have ideas, thanks much ! #include <Arduino.h> #include <SPI.h> #include <SD.h> #include <errno.h> #include <WiFi.h> #include <time.h> #include <sys/time.h> #include <Wire.h> #include <EEPROM.h>...