[App_rpt-users] URI Problem

[Steve Schulze]

Doug.

I'm running a PC with usbradio.

This is something that just recently showed up. The system has been 
running fine at it's current location for over a year. The IBM PC that 
I'm using has a (heavy) metal chassis and I should be able to get a good 
ground on it back to the building's halo.

Unplugging the URI and plugging back in does reset it. When it's not 
working, the green LED is steady.


Thanks!

Amateur Radio - The Original Social Media

Steve Schulze - Radio Amateur, General Class - N9UDO
Administrator, Baraboo, Wisconsin D-Star System - WB9FDZ
Administrator, Baraboo, Wisconsin AllStarLink Systems - 27616, 27727
Treasurer, Badgerland Amateur Television Society - KB9SFS

http://yellowthunder.org/dstar.html

On 9/20/2014 12:54 PM, Doug Crompton wrote:
> Steve,
>
>   What computer are you using? PC or Beagle Bone Black? etc. Also 
> usbradio or simpleusb?
>
> This is a common problem on the URI with external EMI and power spikes.
>
> The problem can be fixed. You need to ground everything and eliminate 
> EMI as much as possible.
>
> The other issue is the USB not resetting when it has this problem. 
> Most of the PC's will but probably not all. The next version of the 
> BBB code coming out soon will reset fine.
>
> If you are using simpleusb there is a bug in the code that precludes a 
> reset upon USB interruption. This fix will also be in the BBB code 
> that is coming soon. If you want to fix a PC simplesusb installation 
> here is the link -
>
> http://www.crompton.com/hamradio/BeagleBoneBlackAllstar/simpleusb-howto.pdf
>
> See how to do the patch at the end of the pdf.
>
> You should be able to pull the USB cable from the URI while in use 
> (green light flashing normally) and reinstall the USB and it should 
> start flashing again. If not then your system will not recover from 
> USB EMI hits properly.
>
> It is always a good idea to try and fix or reduce the problem because 
> in severe cases it would be resetting all the time. It sounds like you 
> case is less severe.
>
> *73 Doug
> WA3DSP
> http://www.crompton.com/hamradio*
>
>
> > Date: Sat, 20 Sep 2014 12:24:15 -0500
> > From: n9udo at yellowthunder.org
> > To: app_rpt-users at ohnosec.org
> > Subject: [App_rpt-users] URI Problem
> >
> > Has anyone run across a URI that goes 'offline' every 3 to 4 days? A
> > simple warm boot command or astres.sh will bring it back on line as 
> well
> > as unplugging the URI and plugging back in.
> >
> > There is no indication that it's not working to the online user. You 
> can
> > connect to the box but no audio (either direction) or PTT passes to the
> > repeater until you reset it.
> >
> > I have installed ferrites on each end of the USB cable and on the
> > control cable on the URI side but no change.
> >
> >
> > Any thoughts?
> >
> >
> > Thanks in advance.
> >
> > --
> > Amateur Radio - The Original Social Media
> >
> > Steve Schulze - Radio Amateur, General Class - N9UDO
> > Administrator, Baraboo, Wisconsin D-Star System - WB9FDZ
> > Administrator, Baraboo, Wisconsin AllStarLink Systems - 27616, 27727
> > Treasurer, Badgerland Amateur Television Society - KB9SFS
> >
> > http://yellowthunder.org/dstar.html
> >
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