Portenta H7 UDP Multicast not working - mbed v2.4.1

[Zuroy]

UDP Multicast is still not working in this version.

[facchinm]

Hi @Zuroy,
does it fail to compile or "simply" doesn't work?
Can you provide the code you are using?
Thanks

[Zuroy]

I'm trying to use the MDNS_generic Library which uses UDP Multicast. The code il correctly compiled but it does not work.
I wrote to the arduino support team and the said that UDP multicast is not supported yet..

[facchinm]

AFAIU MDNS_generic doesn't work out of the box for the Portenta since it requires WiFiNINA_generic ; did you patch it somehow?

[Zuroy]

Nope. since I'm using the ethernet connection. Do you have any suggestion?

[khoih-prog]

@facchinm

You can test by using the latest MDNS_Generic releases v1.3.0-beta1 for Portenta_H7, either Ethernet or WiFi.

• For WiFi, please use examples in WiFi
• For Ethernet, please use examples in Ethernet

Thanks for looking at this issue,

Best Regards,

[khoih-prog]

Already try with ArduinoCore-mbed mbed_portenta core from v2.0.0 up to v2.4.1 without success, with or without the patches in Portenta_Patches.

The Patches are copied / modified from this core's PR WiFi UDP & Multicast Functionality #14

[Zuroy]

Do you have any news? I'm trying to rewrite the C code but I'm stuck on the phy configuration.

[facchinm]

We allocated some time to look for a fix in our backlog, hope it will be fixed by the next core release 🙂

[Zuroy]

We allocated some time to look for a fix in our backlog, hope it will be fixed by the next core release 🙂

Thank you very much!

[facchinm]

@Zuroy @khoih-prog I pushed #337 , tested it with Portenta, ArduinoMDNS and WiFi and it works fine 🎉
On Ethernet, these lines should be added to the sketch after Ethernet.begin() (I'll integrate them in the next core revision)

  STM32_EMAC &emac = STM32_EMAC::get_instance();

  ETH_MACFilterConfigTypeDef pFilterConfig;
  HAL_ETH_GetMACFilterConfig(&emac.EthHandle, &pFilterConfig);
  pFilterConfig.PassAllMulticast = ENABLE;
  HAL_ETH_SetMACFilterConfig(&emac.EthHandle, &pFilterConfig);

@manchoz @pennam