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Old March 30th, 2010   #11
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Join Date: Apr 2009
Location: Dartmoor, Devon, England
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Default You never know!


I'm working from the perspective of a generic controller and therefore have to cater for all eventualities. I'd recommend the exercise to anyone who likes a challenge, its like a box of chocolates, you never know what you're going to get till you open it!

If it doesn't, then all you can do is let the user enter a number between 1 and 254, start the self test, and return an error if the responder NACKs the request.
Eric's approach (Poke & Hope) remains the only option at present.
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