How to retrieve a file written in the flash memory of a Seeed nfr52840 Sense card?

cassailly · November 21, 2022, 3:44am

I’m trying to save a file on the flash memory of a XIAO nrf52840 Sense.

I tried to execute this code :

adafruit/Adafruit_nRF52_Arduino/blob/master/libraries/InternalFileSytem/examples/Internal_ReadWrite/Internal_ReadWrite.ino

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#include <Adafruit_LittleFS.h>
#include <InternalFileSystem.h>
#include <Adafruit_TinyUSB.h> // for Serial

using namespace Adafruit_LittleFS_Namespace;

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It works right but I can’t retrieve the file stored in the memory. I can see the card which appears as a drive in windows explorer, but there are only 3 files (always the same) : CURRENT.UF2, INDEX.HTM and INFO_UF2.TXT. I’m not a expert of programming and maybe there is something I didn’t understand! Please can someone enlighten me? Thanks a lot

PJ_Glasso · November 23, 2022, 2:59am

those 3 files are the boot loader , not what you are thinking. Look for the SDfat or flash specs for more info.
GL
HTH