Hardware requirements#
Micro USB cable
EVK-MIMX8M Plus board
J-Link Debug Probe
12V power supply
Loopback network cable RJ45 standard
Personal Computer
Board settings#
No special settings are required. J9 connected with network switch through RJ45 network cable.
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. If using the U-Boot bootaux to boot the Mcore, the U-Boot from Linux release 5.15.52_2.1.0 or later should be used.
Prepare the Demo#
Connect 12V power supply and J-Link Debug Probe to the board, switch SW3 to power on the board
Connect a USB cable between the host PC and the J23 USB port on the target board.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Insert loopback network cable into network switch device(support loopback frames) and connect switch to board’s Ethernet RJ45 port.
Download the program to the target board.
Launch the debugger in your IDE to begin running the demo.
Make loopback network cable: Standard 1 Standard 2 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 sheet above. If your cable’s color order is not showed in the list, please connect J1~J8 based on your situation.
Running the demo#
When the demo runs, the log would be seen on the terminal like:
ENET example start. The 1 frame transmitted success! The 1 frame has been successfully received! The 2 frame transmitted success! The 2 frame has been successfully received! The 3 frame transmitted success! The 3 frame has been successfully received!
……
The 18 frame transmitted success! The 18 frame has been successfully received! The 19 frame transmitted success! The 19 frame has been successfully received! The 20 frame transmitted success! The 20 frame has been successfully received!