Paul,
I've already gotten versions of code that do polling, as you're doing starting in Program.cs at line 220:
// Loop forever
while (true)
I'll have to go back to my code, BUT... allowing for six+ months of not working on this, my recollection is that I wanted to do this in INTERRUPTS, not a loop/polling. The idea is, why have a thread that's constantly spinning, doing nothing, while other threads could be delayed.
I'm looking more for something in which, during initialization in Main, I would do something on the order of the following pseudo-code:
InterruptPort ethernetListener = new InterruptPort(EthernetPin);
ethernetListener+= EthernetDataReceivedHandler;
And the method EthernetDataReceivedHander would process the data coming in across the wire.
Honestly, right now, I can't remember if I had some PARTICULAR reasoning for wanting to do it in Interrupts, or just aesthetic. :-) I DID get code working that used polling, and had my UDP broadcasts going out (as well as a Windows-based test harness that listened for the packets and could send its own arbitrary UDP packets.)
I KNOW that I've read a number of comments on Arduino forums regarding the W5100 that it "can be more efficient to use Interrupts". You have to bridge one set of solder connections on most of the W5100-based shields I've seen, but it's do-able. You then initialize your Arduino equivalent of InterruptPort, using the pins of the shield which it communicates back to the board (varies by manufacturer, IIRC). Does the built-in Ethernet on the Netduino Plus have equivalent capabilities?
