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

  • Micro USB cable

  • LPCXpresso54628 board

  • Personal Computer

Board settings

Insert the card into the card slot

Prepare the Demo

  1. Connect a micro USB cable between the PC host and the LPC-Link USB port (J8) on the board.

  2. Open a serial terminal with the following 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:


MMCCARD interrupt example.

Card user partition size xxxx bytes

Working condition:

  Voltage: VCC - xxxx  VCCQ - xxxx

  Timing mode: xxxx

  Bus width: xxxx

  Freq : xxxx HZ

Read/write the user partition continuously until encounter error......

Write/read one data block......
Compare the read/write content......
The read/write content is consistent.
Write/read multiple data blocks......
Compare the read/write content......
The read/write content is consistent.
Erase data groups......

Input 'q' to quit read/write/erase process.                
Input other char to read/write/erase data blocks again.