microSD Card Example¶
The microSD Card Example demonstrates the use of a microSD memory card using the SD Card library and the FatFs file system library.
The example initializes the card and performs basic operations like mounting the FAT volume, listing the files, and writing the example file.
Before you start building, remember to set up the nRF5 SDK development environment first. See Setup the nRF5 SDK for details.
Building the example¶
The source code and the project file of the example are located in the following folder: examples/nrf5-sdk/fatfs.
Open terminal and navigate to the directory with the example Makefile:
make to build the example:
Programming the firmware¶
If compiled successfully, the firmware is located in
fatfs/armgcc/_build with the name
Connect the debugger USB port to your PC using the provided USB-C Cable. A disk drive called M2-DOCK will be automatically detected by the computer.
Run the following command in
fatfs/armgcc to program the board:
See Programming section for details about how to program the nRF52840 M.2 Module.
Test the microSD Card Example application by performing the following steps:
Power down the board
Insert a FAT formatted microSD card into the microSD slot
Connect the debugger USB port to your PC
screen /dev/cu.usbmodem14102 115200
Observe the output of the terminal:
Create an Issue¶
Interested in contributing to this project? Want to report a bug? Feel free to click here: