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Does the USB tool work at the same 128kpbs speed as your serial too?
I'm interested in a Scantool that can run at the full HS-CAN speed of my car (2002 Australian BA Falcon XR8 with CAN 11bit 500kbps - I'll post a full topic on it shortly) and it occured to me that even USB 1.1 can run above that. However, I suspect the limit would be with the actual chip used to do the OBD2/Serial conversion and not with the USB side of it. My assumption at the moment is that you're embedding a USB Serial chip in your Scantool and it will appear as a Serial port to the Host PC.
Would any of my assumptions be close to the mark?
Luke Plaizier
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