Hardware requirements

  • Micro USB cable

  • FRDM-RW612 board

  • Personal Computer

Board settings

I2C one board:

  • Transfer data from MASTER_BOARD to SLAVE_BOARD of I2C interface, I2C2 pins of MASTER_BOARD are connected with I2C2 pins of SLAVE_BOARD

MASTER_BOARD        CONNECTS TO         SLAVE_BOARD
Pin Name   Board Location     Pin Name   Board Location
GPIO_16     J2-18              GPIO_16     J2-18
GPIO_17     J2-20              GPIO_17     J2-20
GND         J2-14              GND         J2-14

Prepare the Demo

  1. Connect a micro USB cable between the PC host and the MCU-Link USB port (J10) 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. Launch the debugger in your IDE to begin running the example.

Running the demo

The following message shows in the terminal if the example runs successfully.

CMSIS I2C board2board interrupt example -- Master transfer.
Master will send data :
0x 0  0x 1  0x 2  0x 3  0x 4  0x 5  0x 6  0x 7  
0x 8  0x 9  0x a  0x b  0x c  0x d  0x e  0x f  
0x10  0x11  0x12  0x13  0x14  0x15  0x16  0x17  
0x18  0x19  0x1a  0x1b  0x1c  0x1d  0x1e  0x1f  

Receive sent data from slave :
0x 0  0x 1  0x 2  0x 3  0x 4  0x 5  0x 6  0x 7  
0x 8  0x 9  0x a  0x b  0x c  0x d  0x e  0x f  
0x10  0x11  0x12  0x13  0x14  0x15  0x16  0x17  
0x18  0x19  0x1a  0x1b  0x1c  0x1d  0x1e  0x1f  


End of I2C example .