ESP32 Forum

Posted: **Fri Jun 23, 2023 6:02 pm**

Some background info:

Flash Size: 4 MB
SPIFFS Flash: 1.5MB
Uploaded SPIFF .bin size: 1.3MB
I use MKSPIFFS to generate the .bin file using the following:

-b 4096
-s 0x13D620
-p 256
i.e. 4096 block, 1.3mb, 256 page

I have been able to fetch a SPIFFS .bin file with HttpUpdate updateSPIFFS (from [here])(https://github.com/espressif/arduino-es ... HTTPUpdate). Once I receive a HTTP_UPDATE_OK response, I list all files:

Code: Select all

void listAllFiles(){
 
  File root = SPIFFS.open("/");
 
  File file = root.openNextFile();
 
  while(file){
 
      Serial.print("FILE: ");
      Serial.println(file.name());
 
      file = root.openNextFile();
  }if(!file){
    Serial.println("no files found");
  }
 
}

I have tried using different mkspiffs parameters such as changing the block size, overall size, etc but to no avail e.g. when i click upload ESP32 Sketch Data Upload, it states the size is 1408 so I have also tried generating a 1.4mb .bin but of course I get a space error.

SPIFFS mounts successfully on initial boot - but once the spiffs .bin is uploaded and the board restarts, i sometimes get a SPIFFS: mount failed, -10025 message, which requires a few more restarts for a successful mount.

I have no idea what is going on... the SPIFFS image is clearly being written successfully for the listFiles function to be able to find the new files, but once rebooted, they go.

So far, the ESP32 Sketch Upload is uploading and saving the spiff data correctly - but this is not what I need

edit: i get the file and upload to spiffs using this method from the library above:

Code: Select all

t_httpUpdate_return ret = ESPhttpUpdate.updateSpiffs(fwImageURL);

where fwImageURL is the URL where my spiffs .bin image is

EDIT: after continuing to try this... i ALWAYS get SPIFFS mount failed. I think the reason why the SPIFFS isn't saved is because the SPIFFS formats itself to be able to mount successfully and thus wiping.

Code: Select all

09:37:39.658 -> E (25) SPIFFS: mount failed, -10025
09:37:39.658 -> SPIFFS Mount Failed

ESP32 Forum

SPIFFS File Uploaded But Not Saved

SPIFFS File Uploaded But Not Saved