STM32H743 and KSZ8794 switch

[QNguy.9]

We connect the STM32 MCU to this ethernet switch through RMII clock mode with SPI to access the switch management. However, the MCU does not seem to have ethernet. The port 4 status indicates good link but auto-negotiation is not done.

Has anyone done this before? Can you please point me to a direction in debugging this issue?

Thank you

[KDJEM.1]

Hello @Community member​ and welcome to Community :) ;

Please follow this article "Ethernet not working on STM32H7x3", it may resolve your problem.

Also, I advise you to take a look at this FAQ: How to create project for STM32H7 with Ethernet and LwIP stack working. This FAQ may help you to configure your project in STM32CubeMX .

I hope this help you!

Kaouthar