60.3. SDCard FATFS demo

60.3.1. Overview

The demo provides the following features: - Format an SD card with FAT32 filesystem

  • Create hello.txt

  • Read 1st line from hello.txt

  • Directy creation/deletion

  • Large file write test

This demo can work under polling or interrupt mode, and the default mode is polling mode. Please refer to the comments in CMakeLists.txt for switching to interrupt mode.

60.3.2. Board Setting

No special settings are required

60.3.3. Running the example

When the example runs successfully, the board shows the following menu:

SD FATFS demo
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1 - Format the SD card with FATFS
2 - Create hello.txt
3 - Read 1st line from hello.txt
4 - Directory related test
s - Large file write test
Others - Show menu