Hi

I started working on the porting, code is at https://github.com/CurryGuy/mbed-os/tree/test-stm32h7-emac

We're using it with MQTT, and it seems to be working. I only have a few doubts. I am not sure about the linker script and the allocation of network packets. I first attempted to use the alloc_pool function as its done in the other drivers, but it always fails and I don't know why. To fix the problem I used the alloc_heap function. Also, the code is working on the latest stable release (5.11.3), but not on master ( it gets stuck on packets reception). Could someone give a look at it?

Thanks

Hi, I have work on this topic, based on @Francesco branch. Here is my current work : https://github.com/VVESTM/mbed-os/tree/vve_eth_h7. This is on top of current master branch.

With this branch, I am able to execute tcp test suite with success : mbed test -t IAR -m NUCLEO_H743ZI -v -n tests*netsocket*tcp*

Other ones are not yet working (udp, dns, tls). Any help is welcomed.

@Vincent : I have tested your version, but with gcc it runs into a hardfault. The problem is the linker section for the lwip_sec: you have increased the number of TxDescriptors but not adjusted this in the linker section. By adding 0x200 offset it works also with gcc.

We also ran into hardfaults with gcc when running the mbed-os-tcp-server-example (https://os.mbed.com/teams/ST/code/mbed-os-tcp-server-example/). After changing the *(.RxArraySection) part from 0x30040200 to 0x30040400 in the linker script (STM32H743xI.ld) like described by Johannes it worked however. (Thanks Johannes :) )

We also tried out sending MQTT messages and ran some tests with UDP. So far we didn't notice any issues.

I was not able to execute the tests included in mbed so I don't know if they would be successful or not. I will try to get them to run if I have some time.