STM32C5 RMII configuration using STM32CubeMX2 and the ETH1_CLK pin problem

[Przemek123]

Hello,

 

In the STM32CubeMX2 v1.0.1, I've noticed an issue with the ETH1 peripheral configuration in RMII mode. The application forces the PA_10 pin to be used as ETH_CLK, even though I want to use the clock generated by the PHY and supply it to the PA_1 pin (ETH_REF_CLK). In my project, the PA_10 pin is already used.

The question is, is the ETH_CLK signal on the PA_10 pin necessary in RMII configuration and should I redesign the project, or is this the STM32CubeMX2 issue ?

 

Best regards

[bbakram]

Hello ​@Przemek123,

This is an issue with the STM32CubeMX2 Tool and the HAL2 ETH driver implementation (Config Code Generation part).

The ETH_CLK pin management by the Tool and configuration at ETH Pannel are not behaving as expected. We are working on a fix and will provide an update as soon as it is available. This is tracked internally under the number CDM0063532.

Best Regards,

Akram

[Przemek123]

Thanks for the answer.

Best regards