USB decoding or other logic analyzer use?

USB decoding or other logic analyzer use?, a forum discussion on Cleverscope. Join us for more discussions on USB decoding or other logic analyzer use? on our Interface issues forum.

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7 Nov 2008
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Hi guys. I just bought your CS328A and it's a pretty good product. I'm still figuring out some of the more hidden features. One thing I found myself needing to do today is decode some USB traffic to find whether this chip is sending a NAK or status phase during a control transfer.

My current plan is to use the digital input (ground on D-, sensing D+) and write some code to parse the dump file. Do you have any examples of decoding data saved from the digital inputs? Things like timestamp format, line state, etc. It would be even better if there was a USB decoding class, but I doubt there is one.

Thanks!
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