Hardware requirements

  • Micro USB cable

  • FRDM-K32L3A6 board

  • Personal Computer

  • micro SD card

Board settings

1.Please insert the SDCARD into card slot(J9) 2.Make sure R153. R154, R156, R157 is switch to 1-2. Note: Due to FRDM board do not provide 1.8V IO voltage for SD part, so cannot switch to DDR50 mode. And the CARD detect PIN level is high when card is inserted.

Prepare the Demo

  1. Connect a USB cable between the PC host and the OpenSDA USB port on the board.

  2. Open a serial terminal 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. Either press the reset button on your board or launch the debugger in your IDE to begin running the example.

Running the demo

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


Card size xxxxx bytes

Working condition:

  Voltage : xxxV

  Timing mode: xxx

  Freq : xxx HZ

Read/Write/Erase the card 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 multiple data blocks......

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