USB Testing
USB Testing
(OP)
I am looking for a basic and quick production test procedure for a USB 2.0 (with a Pass/Fail result).
I need to do a test to make sure the Host's USB function is working (i.e. signal integrity).
The host is CE embedded.
Do you have any advice or recommendations?
I need to do a test to make sure the Host's USB function is working (i.e. signal integrity).
The host is CE embedded.
Do you have any advice or recommendations?





RE: USB Testing
Beyond that, there are specialized test equipment for true signal integrity checks, but be prepared to pay through the nose.
Dan - Owner
http://www.Hi-TecDesigns.com
RE: USB Testing
"Beyond that, there are specialized test equipment for true signal integrity checks, but be prepared to pay through the nose": What specialized equipment are available to do this sort of testing? I was hoping that there is a simple tester that plugs into the USB port and gives me a Pass/Fail result...
RE: USB Testing
For production test, one can often rely upon the previous sub-assembly tests and just test what's been touched in the last assembly steps. So if the uC itself has already been tested, then your production test might perhaps only need to be a quick go/nogo check of the wiring. In other words, you're not trying to requalify the port on each unit.
If you have enough space to include some production test code, then perhaps you could simply have an external USB driven display (Arduino or similar fun project) and you program the system to print "USB PASS" on the display when that specific display is connected (handshaking with a test code required). The text "USB PASS" would only exist on the UUT, not the test kit.
RE: USB Testing
Dan - Owner
http://www.Hi-TecDesigns.com