Feature Request: LittleFS support for RP2040-based boards

[khoih-prog]

IMHO, everybody loves to have LittleFS support for Nano_RP2040_Connect as well as other Arduino RP2040-based boards.

LittleFS has been supported in other RP2040 arduino-pico core as LittleFS Library and is working OK.

The LittleFS feature is necessary for many WiFiManager-like libraries.

Best Regards,

[facchinm]

Hi @khoih-prog , LittleFS is already supported, there are just no examples showing it :slightly_smiling_face: On a Pico, for example, you can use the second half of the flash as a LittleFS partition using some code like this

#include "FlashIAPBlockDevice.h"
#include "LittleFileSystem.h"
#include "mbed.h"

// 1MB partition, starting 1MB into the flash
FlashIAPBlockDevice bd(XIP_BASE + 0x100000, 0x100000);
mbed::LittleFileSystem fs("ota");

void setup() {
   int err = fs.mount(&bd);
   if (err) {
      fs.reformat(&bd);
   }
   // access the filesystem using normal POSIX APIs (fopen, fread) or mbed FileSystem APIs (https://os.mbed.com/docs/mbed-os/v6.10/apis/file-system-apis.html)
}

void loop() {}

[khoih-prog]

Hi @facchinm

I already tested the LittleFS and everything is so far OK by using POSIX APIs, just different from other LittleFS.

I've now used LittleFS successfully in my 3 libraries DoubleResetDetector_Generic, MultiResetDetector_Generic and Ethernet_Manager. Many more to be updated.

Thanks for your great works,