Ethernet broken since core 2.5.0 for STM32F746G-DISCOVERY

stm32duino / STM32Ethernet

Arduino library to support Ethernet for STM32 based board

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Ethernet broken since core 2.5.0 for STM32F746G-DISCOVERY #71

Closed patricklaf closed 1 year ago

patricklaf commented 1 year ago

Since core 2.5.0, Ethernet is broken for STM32F746G-DISCOVERY.

Symptoms:

Ping loss is high, 75-100%.
NDPClient.begin() never returns.

Core version:

2.4.0 is OK.
2.5.0 doesn't work.
2.6.0 doesn't work.

Libraries:

STM32Ethernet version 1.3.0.
LwIP version 2.1.2.
NTPClient version 3.2.1.

patricklaf commented 1 year ago

I have done more tests today and the problem is not in the Ethernet library. If I enable only Ethernet and NTPClient, it works well with core 2.6.0.

I have to track down what in my application causes this bug since core 2.5.0. Pretty complicated with lots of libraries and lots of peripherals.

Sorry for the inconvenience.

fpistm commented 1 year ago

Hi @patricklaf No worry. Thanks for the feedback.

patricklaf commented 1 year ago

Hi @fpistm Just to add some clue, it seems to be linked to -Og settings. The whole application compiled with -O0 works perfectly. If I enable debug, the problem appears.

I don't know if something changed since 2.5.0 regarding debug settings? BTW it seems to be core related, no Ethernet.