Hardware requirements

  • Mini/Micro USB cable

  • FRDM-K22F board

  • Personal Computer

Board settings

No special is needed.

Prepare the Demo

  1. Connect a mini USB cable between the PC host and the OpenSDA USB port on the 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. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo

When the example runs successfully, you can see the similar information from the terminal as below.

I2C example – Read Accelerometer Value Found an FXOS8700 on board , the device address is 0x1d . The accel values: status_reg = 0xff , x = -10 , y = 31 , z = 2025 status_reg = 0xff , x = -6 , y = 32 , z = 2022 status_reg = 0xff , x = -9 , y = 35 , z = 2023 status_reg = 0xff , x = -4 , y = 32 , z = 2034 status_reg = 0xff , x = -12 , y = 32 , z = 2020 status_reg = 0xff , x = -8 , y = 33 , z = 2022 status_reg = 0xff , x = -8 , y = 33 , z = 2017 status_reg = 0xff , x = -9 , y = 35 , z = 2024 status_reg = 0xff , x = -7 , y = 35 , z = 2018 status_reg = 0xff , x = -5 , y = 33 , z = 2019

End of I2C example .