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
MIMXRT685-AUD-EVK board
Personal Computer
SD card

Board settings

Prepare the Demo

Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J5) on the board
Open a serial terminal with the following settings:
- 115200 baud rate
- 8 data bits
- No parity
- One stop bit
- No flow control
Download the program to the target board.
Launch the debugger in your IDE to begin running the demo. Please insert the SDCARD into card slot(J9)

Running the demo

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

SDCARD freertos example.

Card inserted.

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 card access task.
Input other char to read/write/erase data blocks again.

If sd card is not inserted before example run, then more log will generated like:

SDCARD freertos example.

Please insert a card into board.