JTAGICE2 + psu + usb still needs powered hub?

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#1
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If you connect a JTAGICEmk2 to a laptop via USB, but power it directly with its own 12v 2A supply, does it still need a powered hub to run reliably over USB (a-la-Dragon)? Or will it happily take advantage of the external power supply to satisfy its power needs, and draw minimal power from the host PC's (grossly underpowered) USB port?

There's no place like ~/

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Total votes: 0

I would say that it should be happy with a separate power supply. From the help file

Quote:
An internal switch will default select the power from the external power supply. However if this is not connected, or the external power supply drops below a usable level the power will be taken from the USB (if connected).

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly