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LittleFS filesystem using SST26 Media

This application shows an example of using the LittleFS File System to access SST26 flash media using SPI protocol

Description

File System Operations on the On-Board SST26 Flash Memory:

  • Performs a SYS_FS_FormatDisk
  • Opens a newfile.txt on the SST26 flash
  • Write and reads back 4KB of data on newfile.txt
  • Verifies the Data Read back

File system layer uses:

  • One instance of the Memory driver is used to communicate with the On-Board SPI Flash memory

Downloading and building the application

To clone or download this application from Github, go to the main page of this repository and then click Code button to clone this repository or download as zip file. This content can also be downloaded using content manager by following these instructions.

Path of the application within the repository is apps/fs/spi_flash_littlefs/firmware .

To build the application, refer to the following table and open the project using its IDE.

Project Name Description
pic32mz_w1_curiosity.X MPLABX project for PIC32MZ W1 Curiosity Board
   

Setting up the hardware

The following table shows the target hardware for the application projects.

Project Name Board
pic32mz_w1_curiosity.X PIC32MZ W1 Curiosity Board
   

Setting up PIC32MZ W1 Curiosity Board

  • Connect micro USB cable to the ‘USB Debug’ connector(J302) on the board to the computer

Running the Application

  1. Build and program the application using its IDE
  2. The LED is turned ON if data has successfully been written and read back from file “newfile.txt”

Refer to the following table for LED name:

Board LED Name
PIC32MZ W1 Curiosity Board RED LED (D202)
   


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