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jeremyherbert
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This pull request adds U2741A support. There is a minor issue with this device; it has a corrupted descriptor in firmware update mode, so the serial number cannot be read out. It works fine once it is put into the normal firmware operation mode.

@timurkelin
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Hi Jeremy

Could you please describe the way you found the the initialization sequence for the instrument.
I'd like to reproduce your steps for U2761A.

Thank you.

@jeremyherbert
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I used a Beagle high speed USB analyser to log the packets being sent by the Agilent drivers on a Windows PC, and then I wrote some code to send those same packets via python.

@timurkelin
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Thanks tons Jeremy. I'll be looking for a packet sniffer.

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2 participants