STM32H5 ETH TX DMA error

[minchingho_span]

Hi,

    I'm working on enabling ETH on STM32H563. I tried to create a FW to do basic ping/ICMP in order to test the interface along with the PHY/switch chip. I found whenever I start the DMA by calling HAL_ETH_Transmit, it always returns HAL_ERROR due to timeout. I checked the status register, ETH_DMADSR and found TPS0 is set to 0x6, which indicates descriptor is not available or buffer underrun. I checked the descriptor and buffer with GDB and found nothing suspicious. Is there anything I should check? 

Thank you.

[KDJEM.1 · Accepted solution]

Hello @minchingho_span and welcome to the community :),

The issue is currently under investigation .

Internal ticket number: 166429 (This is an internal tracking number and is not accessible or usable by customers).

Thank you.

Kaouthar

[Piranha]

https://community.st.com/t5/stm32-mcus-embedded-software/how-to-make-ethernet-and-lwip-working-on-stm32/m-p/261456