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	<title>Objective Development Forums</title>
	
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	<updated>2011-07-03T13:07:47+02:00</updated>

	<author><name><![CDATA[Objective Development Forums]]></name></author>
	<id>https://forums.obdev.at/app.php/feed/topic/5611</id>

		<entry>
		<author><name><![CDATA[_Petya_]]></name></author>
		<updated>2011-07-03T13:07:47+02:00</updated>

		<published>2011-07-03T13:07:47+02:00</published>
		<id>https://forums.obdev.at/viewtopic.php?t=5611&amp;p=18866#p18866</id>
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		<title type="html"><![CDATA[Re: Uresponsive and disappears from device manager]]></title>

		
		<content type="html" xml:base="https://forums.obdev.at/viewtopic.php?t=5611&amp;p=18866#p18866"><![CDATA[
I can confirm the exactly same issue, PowerSwitch project, using tiny2313, 3.6V zeners, and 68 Ohm resistors. <br /><br />I use Linux, and the same thing happens, the device suddenly disappears (from lsusb output), and rebootong the PC doesn't help, I have to unplug the device from USB, and plug it back.<br /><br />Maybe we could set up some kind of watchdog? We need to figure out, what's happening. It is the AVR that's freezing up, or maybe the USB host?<br /><br /><br />edit: maybe something like this would help: <!-- l --><a class="postlink-local" href="http://forums.obdev.at/viewtopic.php?f=8&amp;t=5730">viewtopic.php?f=8&amp;t=5730</a><!-- l --><br /><br /><br />regards,<br />Petya<p>Statistics: Posted by <a href="https://forums.obdev.at/memberlist.php?mode=viewprofile&amp;u=5034">_Petya_</a> — Sun Jul 03, 2011 1:07 pm</p><hr />
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	</entry>
		<entry>
		<author><name><![CDATA[Shad0wca7]]></name></author>
		<updated>2011-04-16T15:26:24+02:00</updated>

		<published>2011-04-16T15:26:24+02:00</published>
		<id>https://forums.obdev.at/viewtopic.php?t=5611&amp;p=18210#p18210</id>
		<link href="https://forums.obdev.at/viewtopic.php?t=5611&amp;p=18210#p18210"/>
		<title type="html"><![CDATA[Uresponsive and disappears from device manager]]></title>

		
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Hi everyone, I built a couple of avr-usb devices. Using 3.6v zener diode and some 63 Ohm resistors. Everything works great when plugged in and they usually work great for a few days.. but every now and then they become unresponsive and disappear from the device manager. <br /><br />I have to physically unplug them then plug them back in for the device to reappear. Rebooting the PC doesn't work...<br /><br />I was sure I saw a couple of threads mentioning things like this when I first started looking into V-USB but I can't find them at all now....Does anyone have any pointers?<p>Statistics: Posted by <a href="https://forums.obdev.at/memberlist.php?mode=viewprofile&amp;u=5146">Shad0wca7</a> — Sat Apr 16, 2011 3:26 pm</p><hr />
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