The LittleFS of the new Nano_RP2040_Connect board (see picture below), using ISSI
Flash chip, is currently not working with Arduino mbed_rp2040 core 2.4.1+
. Please downgrade to Arduino mbed_rp2040 core 2.3.1
Check RP2040 Connect board has faulty components in newest purchase #318 for more information of when and how the issue will be fixed.
The old board (see picture below), using Adesto
Flash chip, is currently working with Arduino mbed_rp2040 core 2.4.1+
.
This library is just a simple LittleFS wrapper to facilitate your usage of LittleFS for the onboard flash on MBED RP2040-based boards such as Nano_RP2040_Connect, RASPBERRY_PI_PICO, using Arduino-mbed RP2040 core
The filesystem access uses normal POSIX APIs or mbed FileSystem APIs
Arduino IDE 1.8.19+
for ArduinoArduino mbed_rp2040 core 2.3.1-
for RP2040-based boards using ISSI
Flash chip, see New board, such as Arduino Nano RP2040 Connect, RASPBERRY_PI_PICO, etc.. Arduino mbed_rp2040 core 2.4.1+
for Arduino (Use Arduino Board Manager) RP2040-based boards using Adesto
Flash chip, see Old board, such as Arduino Nano RP2040 Connect, RASPBERRY_PI_PICO, etc.. Latest release is The best and easiest way is to use Arduino Library Manager
. Search for LittleFS_Mbed_RP2040, then select / install the latest version.
You can also use this link for more detailed instructions.
Another way to install is to:
LittleFS_Mbed_RP2040-main.zip
.LittleFS_Mbed_RP2040-main
directory LittleFS_Mbed_RP2040-main
folder to Arduino libraries' directory such as ~/Arduino/libraries/
.The following is the sample terminal output when running example LittleFS_Counting on MBED RaspberryPi Pico
Start LittleFS_Counting on RaspberryPi Pico
LittleFS_Mbed_RP2040 v1.1.0
[LFS] LittleFS size (KB) = 256
[LFS] LittleFS Mount OK
Deleting file: /littlefs/counts.txt => OK
Times have been run = 1
=> Open to write OK
Start LittleFS_Counting on RaspberryPi Pico
LittleFS_Mbed_RP2040 v1.1.0
[LFS] LittleFS size (KB) = 256
[LFS] LittleFS Mount OK
=> Open to read OK
Times have been run = 2
=> Open to write OK
Start LittleFS_Counting on RaspberryPi Pico
LittleFS_Mbed_RP2040 v1.1.0
[LFS] LittleFS size (KB) = 256
[LFS] LittleFS Mount OK
=> Open to read OK
Times have been run = 3
=> Open to write OK
The following is the sample terminal output when running example LittleFS_Test on MBED RaspberryPi Pico
Start LittleFS_Test on RaspberryPi Pico
LittleFS_Mbed_RP2040 v1.1.0
[LFS] LittleFS size (KB) = 256
[LFS] LittleFS Mount OK
====================================================
Writing file: /littlefs/hello1.txt => Open OK
* Writing OK
====================================================
Reading file: /littlefs/hello1.txt => Open OK
Hello from RaspberryPi Pico
====================================================
Appending file: /littlefs/hello1.txt => Open OK
* Appending OK
====================================================
Reading file: /littlefs/hello1.txt => Open OK
Hello from RaspberryPi Pico
Hello from RaspberryPi Pico
====================================================
Renaming file: /littlefs/hello1.txt to: /littlefs/hello2.txt => OK
====================================================
readCharsFromFile: /littlefs/hello2.txt => Open OK
Hello from RaspberryPi Pico
Hello from RaspberryPi Pico
====================================================
Deleting file: /littlefs/hello2.txt => OK
====================================================
Reading file: /littlefs/hello2.txt => Open Failed
====================================================
Testing file I/O with: /littlefs/hello1.txt => Open OK
- writing
64 Kbytes written in (ms) 847
====================================================
- reading
64 Kbytes read in (ms) 18
====================================================
Testing file I/O with: /littlefs/hello2.txt => Open OK
- writing
64 Kbytes written in (ms) 847
====================================================
- reading
64 Kbytes read in (ms) 18
====================================================
Deleting file: /littlefs/hello1.txt => OK
====================================================
Deleting file: /littlefs/hello2.txt => OK
====================================================
Test complete
Debug is enabled by default on Serial.
You can also change the debugging level (_LFSLOGLEVEL) from 0 to 4
#define LFS_DEBUG_OUTPUT Serial
// These define's must be placed at the beginning before #include "LittleFS_Mbed_RP2040.h"
// _LFS_LOGLEVEL_ from 0 to 4
#define _LFS_LOGLEVEL_ 0
If you get compilation errors, more often than not, you may need to install a newer version of the core for Arduino boards.
Sometimes, the library will only work if you update the board core to the latest version because I am using newly added functions.
Submit issues to: LittleFS_Mbed_RP2040 issues
allman
style. Restyle the libraryMany thanks for everyone for bug reporting, new feature suggesting, testing and contributing to the development of this library.
Maximilian Gerhardt |
If you want to contribute to this project:
Copyright (c) 2021- Khoi Hoang