USB-IF: Hub compliance, Power measurement and more

Aloha from Honolulu, Hawaii.
We're in town for the USB-IF annual meeting and a compliance workshop.

Total Phase USB-IF test suite in action Great view and enjoyable work

As you see from the picture, Tom and I drew a pretty nice assignment this week.  In this particular case (inset photo), we were using two Beagle USB 5000 v2 Protocol Analyzers - Ultimate Edition to measure performance for a customer with two new products - A new high performance USB 3.0 hub and  high performance USB 3.0 mass storage device.  The hub had performance that was easily within spec for hub re-transmission (wHub delay), and it handled a blistering 110MB/sec read/write to the mass storage device.  After those initial tests it was easy to use our Data Center Software to disable re-transmission and force the devices into a USB 2.0 only state and repeat the tests.  Once again, great performance.  Next, we switched to the Beagle USB 480 Power Protocol Analyzer - Ultimate Edition to measure power consumption when the hub and memory device were powered by the USB's VBUS.  Our one click correlation feature helps customers identify operations that are consuming higher power and enables them to optimize their design for power efficiency.

We've testing a variety of new hosts, other hubs, and new advanced automotive media systems (the 2015 models will be fun), as our customers gear up for their USB-IF certifications.

The annual meeting was very informative, as we learned more about the USB Power Delivery specification, Media Agnostic USB, and new new USB C connector that's coming soon.  We also saw a demonstration of a USB 3.1 mass storage device and controller.

See you at DesignCon2014 in Santa Clara, California next week.

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