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Old November 19th, 2020   #6
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Join Date: Apr 2009
Location: Dartmoor, Devon, England
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Default Port turn-around and timing

I concur with Eric's comments.
Irrespective of any sniffers, some form of digital scope with a trigger to capture traffic and port control timing will be an essential base level tool, to get you passed the first basics. Your controller not relinquishing the bus after a discovery response may be a reason for no additional discovery traffic being received.
Hamish Dumbreck
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