Saturday, 15 June 2013

Automated USB Device Testing -



Automated USB Device Testing -

is there solution automated usb device testing? we're having usb device smartcard reader , usb stick in 1 device. want test situations figure out happens if illustration stick gets plugged in , out in specific time range.

we thinking usb cable controllable on separate usb connection (y-cable).

i've worked in usb development @ couple companies. can't speak commercially available product simulating attach , detach, here of ways tested:

usbcv + gold tree - usbcv pretty fragile free. it's necessary logo compliance. you'll want dedicated station test 1 person allowed touch. usb demo board - inexpensive demo board allows prototype different hardware profiles. it's useful testing usb host against non-compliant, malicious, or hard devices. protocol analyzer - analyzers allow observe errors consumed tolerant hosts violation of standard. recommend total phase brand. timer + mechanical relay switch - can set cheap, automated attach / detach circuit using favorite 555 equivalent timer. usb flying. when you're in air, you'll ok. it's take offs , landings, or attaches , detaches, scary. pretty useful tool errors come .1% of time. current meter - create sure don't overtax bus. usb eye test - create sure signal looks good. can approximation looking packet errors in analyzer.

manual testing - can automate great extent need human test @ point.

if test above under different configurations (make sure seek wide variety of hubs), you'll off start.

testing usb automated-tests qa

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