Hardware requirements

  • Mini/micro USB cable

  • LPCXpresso54628 board

  • Personal Computer

  • Loopback network cable RJ45 standard (optional)

Board settings

For LPCXpresso54628 V2.0:JP11 and JP12 1-2 on.

Prepare the Demo

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

Running the demo

The log below shows example output of the example in the terminal window:


 ENET example start.


Transmission start now!
The 1 frame transmitted success!
The 2 frame transmitted success!
The 3 frame transmitted success!
The 4 frame transmitted success!
The 5 frame transmitted success!
The 6 frame transmitted success!
The 7 frame transmitted success!
The 8 frame transmitted success!
The 9 frame transmitted success!
The 10 frame transmitted success!
The 11 frame transmitted success!
The 12 frame transmitted success!
The 13 frame transmitted success!
The 14 frame transmitted success!
The 15 frame transmitted success!
The 16 frame transmitted success!
The 17 frame transmitted success!
The 18 frame transmitted success!
The 19 frame transmitted success!
The 20 frame transmitted success!
1 frame has been successfuly received
2 frame has been successfuly received
3 frame has been successfuly received
4 frame has been successfuly received
5 frame has been successfuly received
6 frame has been successfuly received
8 frame has been successfuly received
9 frame has been successfuly received
10 frame has been successfuly received
12 frame has been successfuly received
13 frame has been successfuly received
14 frame has been successfuly received
15 frame has been successfuly received
17 frame has been successfuly received
18 frame has been successfuly received
20 frame has been successfuly received


...

Optionally, you may use a loop back cable

Make a loopback network cable: 568B standard Unknowed standard J1 orange+white green+white J2 orange green J3 green+white orange+white J4 blue brown+white J5 blue+white brown J6 green orange J7 brown+white blue J8 brown blue+white

Connect J1 => J3, J2 => J6, J4 => J7, J5 => J8. 10/100M transfer only requires J1, J2, J3, J6, and 1G transfer requires all 8 pins. Check your net cable color order and refer to the 568B standard or the other standard. If your cable’s color order is not showed in the list, please connect J1~J8 based on your situation.

  1. Set CONFIG_APP_USES_LOOPBACK_CABLE=y in .config (or add/change #define APP_USES_LOOPBACK_CABLE 1 in mcux_config.h if you don’t use Kconfig) and rebuild the example.

  2. Insert loopback network cable to Ethernet RJ45 port.

  3. Run the demo in the same way as described earlier.