Hardware requirements

  • Micro USB cable

  • evkbimxrt1050 board

  • Personal Computer

  • SDIO card(such as wifi card, we use ATHEROS AR6233X to test)

Board settings

Insert the sdio card into card slot. Note that sdcard connector is for micro sd,but sdio connector is normal one, so you need a connector converter to connect.

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:


SDIO freertos example.

Card inserted.

Read function CIS, in direct way

Read function CIS, in extended way, non-block mode, non-word aligned size

Read function CIS, in extended way, block mode, non-word aligned size

The read content is consistent.

Input 'q' to quit card access task.

Input other char to access again.

If sdio card interrupt is generated, then more log will be generated like:


SDIO interrupt is received

SDIO Pending interrupt 0