Hardware requirements

  • Micro USB cable

  • EVK-MIMX8M Plus board

  • J-Link Debug Probe

  • 12V power supply

  • Personal Computer

Board settings

Example uses phy looback. No need to connect any network cable on port.

Please note this application can’t support running with Linux BSP! This example aims to show the basic usage of the IP’s function, some of the used Pads/Resources are also used by Cortex-A core.

Prepare the Demo

  1. Connect 12V power supply and J-Link Debug Probe to the board.

  2. Connect a micro USB cable between the host PC and the J19 USB Debug Port on the CPU board.

  3. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  4. Download the program to the target board.

  5. Launch the debugger in your IDE to begin running the example.

Running the demo

When the demo runs, the log would be seen on the terminal like:

ENET example start. Get the 1-th time 0 second, 1864 nanosecond Get the 2-th time 0 second, 7275192 nanosecond Get the 3-th time 0 second, 14804820 nanosecond Get the 4-th time 0 second, 22420658 nanosecond Get the 5-th time 0 second, 30036030 nanosecond Get the 6-th time 0 second, 37651402 nanosecond Get the 7-th time 0 second, 45267240 nanosecond Get the 8-th time 0 second, 52882612 nanosecond Get the 9-th time 0 second, 60498450 nanosecond Get the 10-th time 0 second, 68113822 nanosecond

Transmission start now! The 1 frame transmitted success! the timestamp is 0 second, 167770756 nanosecond One frame received. the length 1014 the timestamp is 0 second, 167973396 nanosecond The 2 frame transmitted success! the timestamp is 0 second, 200548167 nanosecond One frame received. the length 1014 the timestamp is 0 second, 200750756 nanosecond The 3 frame transmitted success! the timestamp is 0 second, 233324728 nanosecond One frame received. the length 1014 the timestamp is 0 second, 233527436 nanosecond The 4 frame transmitted success! the timestamp is 0 second, 266102139 nanosecond One frame received. the length 1014 the timestamp is 0 second, 266305136 nanosecond The 5 frame transmitted success! the timestamp is 0 second, 298878785 nanosecond

…… The 20 frame transmitted success! the timestamp is 0 second, 792377480 nanosecond One frame received. the length 1014 the timestamp is 0 second, 792580698 nanosecond