TH_DMABMR_SR bit never goes to zero and then exits for TIMEOUT

[infoinfo983]

Hi

On my board the ETH_DMABMR_SR bit never goes to zero and then exits for TIMEOUT.

Where did I make the mistake?

What exactly should I check?

Best Regards

Albert

[Imen.D]

Hello @infoinfo983​ ,

In order to more understand the issue you are facing, we need more details on the case:

Which Hardware board used?

Are you using MII or RMII ? Is MII/RMII clock available from external source?

Do you have configured correctly the pins and enabled the clocks in RCC?

Kind Regards

Imen

[infoinfo983]

Hi

The project was created with STM32cubeMX 4.27.0 and STlib 1.21.0. ... does not work. The microcontroller is STM32F429ZIT6. The interface is RMII. The ETH_REF_CLK is 50Mhz.

I tried to introduce a very old LwIP and oddly it works. In any case, I had to enter the following line of code in the HAL_ETH_Init (..) function on line 384

phyreg = heth-> Instance-> MACMIIAR; // FIXME

I'm looking for differences to understand where the problem is

Thank you