File System With RPI Pico2040 - Raspberry Pi Forums

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3 posts • Page 1 of 1 nataly Posts: 7 Joined: Fri Jan 28, 2022 6:33 pm

File system with RPI pico2040

Fri Jan 28, 2022 6:48 pm

I'm trying to read from file by using file system in RPI Pico and I follow these steps:

* Download the tool: https://github.com/earlephilhower/ardui ... n/releases * In your Arduino sketchbook directory, create `tools` directory if it doesn’t exist yet. * Unpack the tool into `tools` directory (the path will look like `<home_dir>/Arduino/tools/PicoLittleFS/tool/picolittlefs.jar`) If upgrading, overwrite the existing JAR file with the newer version. * Restart Arduino IDE. * Open a sketch (or create a new one and save it). * Go to sketch directory (choose Sketch > Show Sketch Folder). * Create a directory named `data` and any files you want in the file system there. * Make sure you have selected a board, port, and closed Serial Monitor. * Double check theSerial Monitor is closed. Uploads will fail if the Serial Monitor has control of the serial port. * Select `Tools > Pico LittleFS Data Upload`. This should start uploading the files into the flash file system

. And this is my code :

Code: Select all

#include "LittleFS.h" // LittleFS is declared void setup() { Serial.begin(115200); while (!Serial) // LittleFS.begin(); File root = LittleFS.open("/"); File file = root.openNextFile(); while(file) { for(int i=0;i<100;i++){ String str = file.readStringUntil('\n'); arr[i] = str.toFloat(); } file.close(); } void loop() { } My problem I get on this error when I run the code! why? LittleFS.h: No such file or directory I use Arduino IDE 1.8.116 RPi Pico2040 gabriel_diy Posts: 4 Joined: Thu Mar 03, 2022 11:22 am

Re: File system with RPI pico2040

Mon May 30, 2022 1:11 pm

have you been able to read and write files with this? scruss Posts: 6626 Joined: Sat Jun 09, 2012 12:25 pm

Re: File system with RPI pico2040

Mon May 30, 2022 2:57 pm

nataly wrote: ↑Fri Jan 28, 2022 6:48 pm My problem I get on this error when I run the code! why? LittleFS.h: No such file or directory

That would mean that the LittleFS library wasn't installed properly for the Arduino IDE to find it. The Earle Philhower RP2040 Arduino support was a great but early effort. It looks like Arduino themselves use and recommend Arduino Core for mbed enabled devices. You can install it from the Boards Manager inside the IDE. It has the LittleFS_Mbed_RP2040 library which you can install from the Arduino Library Manager. It'll have a different API from the one you were trying, perhaps. ‘Remember the Golden Rule of Selling: “Do not resort to violence.”’ — McGlashan. Pronouns: he/him Display posts from previous:All posts1 day7 days2 weeks1 month3 months6 months1 yearSort byAuthorPost timeSubjectAscendingDescending Locked

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