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

[khoih-prog]

Hi @facchinm , @Zuroy , @pennam , @manchoz

I've just tested and confirmed the PR SocketWrapper: UDP: send packet on endPacket(), not on write() #337 fixes the UDP Multicast issue.

Many thanks for the beautiful fix

BR,

---

Test Results

1. Using Portenta_H7 WiFi

1.1 Terminal output

Start WiFiRegisteringServices on PORTENTA_H7_M7
MDNS_Generic v1.3.0-b1
Attempting to connect to SSID: HueNet1
SSID: HueNet1
Local IP address: 192.168.2.94
Signal strength (RSSI):-35 dBm
Registering mDNS hostname: portenta-h7-m7
To access, using portenta-h7-m7.local
[MDNS] ::begin: UDP beginMulticast statusCode= OK
[MDNS] ::_sendMDNSMessage: xid= 0
[MDNS] ::_sendMDNSMessage: queryCount= 0
[MDNS] ::_sendMDNSMessage: answerCount= 1024
[MDNS] ::_sendMDNSMessage: authorityCount= 0
[MDNS] ::_sendMDNSMessage: additionalCount= 256
[MDNS] ::_sendMDNSMessage: statusCode = 1

1.2 Ping using mDNS hostname => OK

kh@kh-Inspiron-3593:~$ ping portenta-h7-m7.local
PING portenta-h7-m7.local (192.168.2.94) 56(84) bytes of data.
64 bytes from 192.168.2.94 (192.168.2.94): icmp_seq=1 ttl=255 time=49.4 ms
64 bytes from 192.168.2.94 (192.168.2.94): icmp_seq=2 ttl=255 time=153 ms
64 bytes from 192.168.2.94 (192.168.2.94): icmp_seq=3 ttl=255 time=73.4 ms
64 bytes from 192.168.2.94 (192.168.2.94): icmp_seq=4 ttl=255 time=95.7 ms
64 bytes from 192.168.2.94 (192.168.2.94): icmp_seq=5 ttl=255 time=119 ms
64 bytes from 192.168.2.94 (192.168.2.94): icmp_seq=6 ttl=255 time=22.0 ms
64 bytes from 192.168.2.94 (192.168.2.94): icmp_seq=7 ttl=255 time=30.4 ms
64 bytes from 192.168.2.94 (192.168.2.94): icmp_seq=8 ttl=255 time=47.7 m

2. Using Portenta_H7 Ethernet

2.1 Terminal output

Start RegisteringServices on PORTENTA_H7_M7 using Ethernet using Portenta_Ethernet Library
MDNS_Generic v1.3.0-b1
=========================
Default SPI pinout:
MOSI:8
MISO:10
SCK:9
SS:7
=========================
[MDNS] Board : PORTENTA_H7_M7 , setCsPin: 10
=========================
Currently Used SPI pinout:
MOSI:8
MISO:10
SCK:9
SS:7
=========================
Using mac index = 11
Connected! IP address: 192.168.2.87
Registering mDNS hostname: portenta-h7-m7-15
To access, using portenta-h7-m7-11.local
[MDNS] ::begin: UDP beginMulticast statusCode= OK
AddService : PORTENTA_H7_M7_mDNS_Webserver._http
[MDNS] ::_sendMDNSMessage: xid= 0
[MDNS] ::_sendMDNSMessage: queryCount= 0
[MDNS] ::_sendMDNSMessage: answerCount= 1024
[MDNS] ::_sendMDNSMessage: authorityCount= 0
[MDNS] ::_sendMDNSMessage: additionalCount= 256
[MDNS] ::_sendMDNSMessage: statusCode = 1

2.2 Ping using mDNS hostname => OK

kh@kh-Inspiron-3593:~$ ping portenta-h7-m7-15.local
PING portenta-h7-m7-15.local (192.168.2.87) 56(84) bytes of data.
64 bytes from 192.168.2.87 (192.168.2.87): icmp_seq=1 ttl=255 time=0.964 ms
64 bytes from 192.168.2.87 (192.168.2.87): icmp_seq=2 ttl=255 time=0.216 ms
64 bytes from 192.168.2.87 (192.168.2.87): icmp_seq=3 ttl=255 time=1.07 ms
64 bytes from 192.168.2.87 (192.168.2.87): icmp_seq=4 ttl=255 time=4.40 ms
64 bytes from 192.168.2.87 (192.168.2.87): icmp_seq=5 ttl=255 time=0.314 ms
64 bytes from 192.168.2.87 (192.168.2.87): icmp_seq=6 ttl=255 time=0.635 ms
64 bytes from 192.168.2.87 (192.168.2.87): icmp_seq=7 ttl=255 time=0.996 ms
64 bytes from 192.168.2.87 (192.168.2.87): icmp_seq=8 ttl=255 time=4.47 ms