Hardware requirements
Micro USB cable
Two LPCXpresso54628 boards
Personal Computer
Board settings
I2C one board:
Transfer data from MASTER_BOARD to SLAVE_BOARD of I2C interface, I2C8 pins of MASTER_BOARD are connected with I2C8 pins of SLAVE_BOARD
MASTER_BOARD CONNECTS TO SLAVE_BOARD
Pin Name Board Location Pin Name Board Location
I2C_SCL J9-2 I2C_SCL J9-2
I2C_SDA J9-4 I2C_SDA J9-4
GND J9-7 GND J9-7
Prepare the Demo
Connect a micro USB cable between the PC host and the LPC-Link USB port (J8) on the board.
Open a serial terminal on PC for JLink serial device with these settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
The following message shows in the terminal if the example runs successfully.
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 .