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Associate II
June 12, 2026
Question

EVB-LAN9252-SPI with STM32H7

  • June 12, 2026
  • 2 replies
  • 73 views

Hi,

I am working with an STM32H7 microcontroller and the EVB-LAN9252-SPI board from Microchip Technology.

I would like to establish communication between the STM32H7 MCU and the LAN9252 over the SPI interface. Could you please provide guidance on the hardware interfacing, software setup, and initialization procedure required to bring up the communication?

Additionally, please let me know the software packages, drivers, middleware, or example projects that would be needed for this implementation.

2 replies

Andrew Neil
Super User
June 12, 2026

 

NetX Duo - alternative to LwIP: https://wiki.st.com/stm32mcu/wiki/Introduction_to_NETXDUO 

 

Previous community posts with LAN9252: https://community.st.com/search?q=LAN9252

 

 

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.
SrivatsanAuthor
Associate II
June 15, 2026

Could anyone provide a sample code or a reference project demonstrating how to interface the STM32H7 microcontroller with the LAN9252 EtherCAT Slave Controller over SPI and establish EtherCAT communication?

If there are any example projects, reference designs, drivers or application notes available, please share them. They would be very helpful for getting started.

mƎALLEm
ST Technical Moderator
June 15, 2026

Unfortunately ST don’t provide any reference example with the described configuration.

Meanwhile have a look at this post: EtherCAT on STM32

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