Allowing quick and reliable analysis of USB data transfers, the USB Agent is hooked into the data bus at any point and operates as a protocol analyzer while logging the complete data flow into a buffer as large as 8 MB. A host PC connects the USB Agent via an LPT interface (SPP or EPP) and controls the recording and analysis of the data flow. The HiTOP/win user interface runs on any 32-bit Windows operating system. A real-time capable trigger system controls the recording, where pre- and post-triggers can be established. Trigger conditions include: data patterns; events such as user-definable PIDs; and PID combinations with address and end-point or error conditions. Unit can be used to search for these events within the recorded data flow or to filter the display.
About the Author
Staff
Articles, galleries, and recent work by members of Electronic Design's editorial staff.