Portenta H7 MDNS Library compatibility

[Zuroy]

Discussed in #3

^{Originally posted by Zuroy August 31, 2021}
Good morning everyone,
I wonder if this library is compatible with Portenta H7 board. I tryed to use it with that board to add (register) a new service on my net but when I lunch the discovery routine using python zeroconf it returns this error:

Can you help me?
Thank you very much,

Amedeo

[khoih-prog]

Hi @Zuroy

Thanks for your interest in this library.
As you know, this library is written in C/C++, for Arduino / PIO platform and has nothing to do with the Python zeroconf code you're testing.

It's currently not supporting Portenta H7. As I have no Portenta H7 board now to test, I don't know when I can add the support in the future.

I'm closing the issue now and will re-open when the time comes.

Good Luck,

[Zuroy]

The problem is not the Zeroconf implementation in Python.
Using Wireshark the packets coming from the board in which is implemented the MDNS library are malformed and cannot be interpreted.

[khoih-prog]

This library is currently not supporting Portenta H7. I'm surprised that it can run or do anything for you.

[Zuroy]

Thank you for the reply. I'm trying to solve the compatibility problems.

[khoih-prog]

As I have no Portenta H7 board now to test, I don't know when I can add the support in the future.

Certainly if you're patient and willing to help in testing, I'll port the library to Portenta H7, then you do all the testing, bug reporting and final approving.

[Zuroy]

Sure! Thank you very much.

[khoih-prog]

Great. But out of my curiosity, I already ordered a Portenta H7 to test and write / port many of my libraries to support it.

You will see soon a topic similar to this Libraries updated to support new RP2040-based boards (RASPBERRY_PI_PICO, etc.)

[khoih-prog]

I'm sorry to let you know somehow the mbed_portenta core doesn't fully support UDP multicast, because of some bugs, designs, etc. deep down in the core. I already wasted nearly several hrs trying to isolate the issue, but still haven't found out the culprit and/or the fix.

I have to move on to continue with other more important and interesting project for Portenta_H7 and don't know when I will spend time again with this MDNS Portenta_H7 support.

FYI, possibly you already knew that I started the new topic Libraries updated to support new Portenta H7 boards. Follow up there to have an update of which of my libraries supporting this new, beautiful and powerful Portenta_H7

[Zuroy]

I appriciate very much your efforts to solve these bugs. Thank you.
I'm following your new post and let me know if you need some help for testing or other.

[Zuroy]

I'm sorry to let you know somehow the mbed_portenta core doesn't fully support UDP multicast, because of some bugs, designs, etc. deep down in the core. I already wasted nearly several hrs trying to isolate the issue, but still haven't found out the culprit and/or the fix.

I have to move on to continue with other more important and interesting project for Portenta_H7 and don't know when I will spend time again with this MDNS Portenta_H7 support.

FYI, possibly you already knew that I started the new topic Libraries updated to support new Portenta H7 boards. Follow up there to have an update of which of my libraries supporting this new, beautiful and powerful Portenta_H7

Arduino support team confirms that UDP multicast is not supported while plain UDP should work correctly.

[khoih-prog]

Arduino support team confirms that UDP multicast is not supported while plain UDP should work correctly.

This is what I tested and found, then tried to fix, but without success yet. Thanks for the info.

I'm now working to port all of my libs to Portenta (for fun), and currently have not prioritize which one, possibly WebSockets, TimerInterrupt, FlashStorage/LittleFS, DRD/MRD, WiFi/Ethernet Manager, MySQL, MQTT-Broker, etc.
If you think which one is urgent for you, I can help prioritize it.

Certainly if you can test and find bugs in the currently supporting list, I'd appreciate it.

[khoih-prog]

Hi @Zuroy

As Portenta is not well supported yet, it's time-consuming to find libraries, examples, sample codes for many basic features.

I many times have to spend time to search around, and look deep into the core to learn and figure out.

If you're willing to help here, in researching, locating, posting your experience, I'd really appreciate. I can invite you into my private tech discussion repo., so that we can share / post lengthy topics unrelated to this MDNS library. Just let me know.

[Zuroy]

Hi @Zuroy

As Portenta is not well supported yet, it's time-consuming to find libraries, examples, sample codes for many basic features.

I many times have to spend time to search around, and look deep into the core to learn and figure out.

If you're willing to help here, in researching, locating, posting your experience, I'd really appreciate. I can invite you into my private tech discussion repo., so that we can share / post lengthy topics unrelated to this MDNS library. Just let me know.

Hi khoih-prog,
currently I'm trying to solve the problem with the UDP multiicast and the MDNS since it is mandatory for the project I'm working on. I saw this discussion arduino/ArduinoCore-mbed#14 maybe it can help us to identify the problem (even if the issue in the previous link was releated to WiFi multicast).
I'll be very happy to participate to your tech discussion repo.