Facing Ethernet Ping Issue using FreeRTOS for STM32F767.

[Vinayak_B_H]

I am using STM32F767 with LWIP and LAN8742 PHY.
Ethernet initializes but I am facing Ping does not work reliably.

This is the Schematic.

[mbarg.1]

There is an error in your code.

Please fix it before complaining.

[Vinayak_B_H]

Using the same firmware and LWIP configuration, Ethernet ping works correctly on the Nucleo-F767ZI and another custom STM32F767-based board. On this custom PCB, however, the device does not respond to ping.

This is my code snippet used to ping the IP address. I am using only the libraries provided by STM32CubeIDE, and no additional custom code has been added.

[Imen.D]

Hello @Vinayak_B_H ,

Verify your hardware and PHY initialization, and try debug and check the registers to confirm whether the issue is software or hardware.

These articles may help you:

• Implementing a LwIP and FreeRTOS™ v1 UDP echo server on the STM32F7 series
• How to create a project for STM32H7 with Ethernet and LwIP stack working
• Debugging tips when working with an Ethernet peripheral 
• Using the ITM console for printf redirects and LWIP Debug

[sergey23]

@Vinayak_B_H  the PHY and Ethernet pins wiring is crucial, and it is not really visible from your schematic snippet. If you could provide a complete Ethernet schematic snippet in adequate quality, that might help a lot.