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vaun
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April 24, 2026
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RMII configuration for STM32H745BIT6

  • April 24, 2026
  • 1 reply
  • 159 views

New question split from this post.

OK THANK  YOU @mƎALLEm , CAN U SHARE THE RMII CONFIGURATION FOR STM32H745BIT6?

 

Best answer by mƎALLEm

Hello,

We don't have CubeMx RMII configuration for that specific part number but you can inspire from what it was implemented in NUCLEO-H743 as it uses RMII mode.

From its schematic: 

mALLEm_0-1777025669871.png

The LWIP example (unfortunately no ioc file available) where the Ethernet PHY is configured: 

https://github.com/STMicroelectronics/STM32CubeH7/tree/master/Projects/NUCLEO-H743ZI/Applications/LwIP/LwIP_HTTP_Server_Netconn_RTOS

You need to reflect the configuration in your CubeMx configuration.

 

1 reply

mƎALLEm
mƎALLEmBest answer
ST Technical Moderator
April 24, 2026

Hello,

We don't have CubeMx RMII configuration for that specific part number but you can inspire from what it was implemented in NUCLEO-H743 as it uses RMII mode.

From its schematic: 

mALLEm_0-1777025669871.png

The LWIP example (unfortunately no ioc file available) where the Ethernet PHY is configured: 

https://github.com/STMicroelectronics/STM32CubeH7/tree/master/Projects/NUCLEO-H743ZI/Applications/LwIP/LwIP_HTTP_Server_Netconn_RTOS

You need to reflect the configuration in your CubeMx configuration.

 

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