This is the documentation for the latest (main) development branch of mcuxpresso sdk. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Hardware requirements

  • Mini USB cable

  • LPCXpresso54628 board

  • Personal Computer

Board settings

Insert the card into the card slot

Prepare the Example

  1. Connect a mini USB cable between the PC host and the OpenSDA USB port (J2) on twrk64f120m board.

  2. Open a serial terminal on PC for OpenSDA serial device with these settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  3. Download the program to the target board.

  4. Reset the SoC and run the project.

Running the demo

When the demo runs successfully, the log would be seen on the terminal like:


FATFS example to demonstrate how to use FATFS with MMC card.

Make file system......The time may be long if the card capacity is big.

Create directory......

Create a file in that directory......

List the file in that directory......
General file : F_1.DAT.

 Write/read file until encounters error......

Write to above created file.
Read from above created file.
Compare the read/write content.
The read/write content is consistent.

Input 'q' to quit read/write.
Input other char to read/write file again.