Nucleo-H723ZG + FreeRTOS + LWIP

rzingler · ‎2026-01-08

Hello everybody.

I'm trying to make LWIP work on NUCLEO-H723ZG board, but I can't even get a ping response so far, even with static (DHCP disabled) network configuration. The project uses FreeRTOS (CMSIS API v2) and is created with MX tool. It seems to be an ARP problem, since there is no ICMP request from my PC when I execute the ping command (checked with Wireshark).

Did anyone face similar issues using an environment like this?

Attached is the output generated by LWIP, as well as the project configuration file and linker script.

Any help will be greatly appreciated.

Thank you!

Andrew Neil · ‎2026-01-08

@rzingler wrote:
Did anyone face similar issues using an environment like this?

Yes, there seem to be quite a lot of threads on that - try a forum search.

Have you seen these Knowledge Base articles:

How to create a project for STM32H7 with Ethernet and LwIP stack

Ethernet not working on STM32H7x3?

Debugging tips when working with an Ethernet peripheral

etc, ...

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.