Generating STM32F429ZITx - Nucleo-F429ZI with ETH + LwIP using STM32CubeMX Version 6.7.0

[Stian.Skjelstad]

I found some minor issues when generating a new skeleton project for STM32F429ZITx - Nucleo-F429ZI + LwIP

1: If you enable multicast + IPv6 protocol:

heth.Instance->MACPFR |= ETH_MACPFR_PM;

instead of

heth.Instance->MACFFR |= ETH_MACFFR_PM; /* notice the double F inside MACFFR */

2: The entire interface is taken up/down together with linkup/linkdown. In LwIP 2.x this is wrong. The interface should always be up, else DHCP will assert during init and never recover.

ethernet_link_check_state() should NOT contain netif_set_down(netif); and netif_set_up(netif);. Instead there should be a single netif_set_up(&gnetif); in MX_LWIP_Init() after netif_add(&gnetif, &ipaddr, &netmask, &gw, NULL, &ethernetif_init, &ethernet_input);

3: The configuration causes some few printf() calls to be generated, but the skeleton Keil project does not assign printf/stdout/stderr, so execution halts due to hardcoded breakpoints during systeminit before main() due to the stub libc being "missconfigured". Either ensure that debug printf from assertions are not generated or stub printf/stdout/stderr code needs to be generated (most common will probably be to use ITM/EventRecorder built into Keil)

[KDJEM.1 · Accepted solution]

Hello @Community member​ and welcome to the Community 🙂,

I confirm the first issue and I reported internally.

The second and the third points will be checked by our team an we will contact you as soon as possible.

Internal ticket number: 145708 (This is an internal tracking number and is not accessible or usable by customers).

Kaouthar

[KDJEM.1]

Hi @Stian.Skjelstad ,

The STM32CubeMX issue is fixed with 6.10.0 version.

Thank you.

Kaouthar