Ticket #217 (defect)

Opened 1 year ago

FX2 should monitor VBUS for USB compliance

Status: new

Reported by: eb Assigned to: matt
Priority: normal Milestone: to-be-decided
Component: usrp-hardware Version: 3.1svn
Keywords: Cc:

See app note AN15813

Date: Fri, 21 Dec 2007 15:12:10 +0100
From: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Subject: [Discuss-gnuradio] Does USRP monitor VBUS
To: discuss-gnuradio@gnu.org
Sender: discuss-gnuradio-bounces+eb=comsec.com@gnu.org

Hallo,

at least how I decipher usrp-hw/usrp/interface.pdf, the USRP doesn't monitor
VBUS. As the Cypress application note AN15813 states, this may be an endless
source of problems when  booting the PC host, hotplugging the USB cables etc.

Just as a note and please forgive if I missinterpret the schematic.

Seasons greetings

--
Uwe Bonnes                bon@elektron.ikp.physik.tu-darmstadt.de