Multicore on Arduino RP2040 Nano unsuccessful about arduino-pico

[earlephilhower]

What are the limitations for multicore? Can WiFi be call on either core?

First of all, I'm amazed that WiFiNINA works on this core. I would have thought it would need MBED OS stuff that only the official core supports. It's really not recommended and I have no idea if it works and no way of testing or fixing anything should it not (or, say, should it fail in interesting ways!).

For your sanity, I would really recommend sticking w/the official MBED OS core from Arduino if you're using their WiFi stack.

That said, I would bet that if it did work, that it would have the same requirements as the PicoW native WiFi included here, namely only on core 0. Anything at all doing TCP/IP comms needs to be on core 0. WiFiClient, WebServer, MQTT, etc. included since they'd use TCP/IP.

Also, I would bet that there are exactly 0 Arduino libraries which are multicore safe. So you'd need to make sure that all use of any library is on the same core you started it on.

[tech9492]

Thank you very much for the detailed explanation of your core.

I will stick to the official core then, considering that libraries might not be compatible with multicore mode.

Thank you.