[arm-allstar] Time out timer and watchdog functions

Mon Feb 16 18:33:24 EST 2015

Thx Doug,
All part of the learning curve we are learning.  Sure impressed with the audio which
transverses the system.

...73 Tom

On Mon, 16 Feb 2015 16:51:54 -0500
Doug Crompton <doug at crompton.com> wrote:

> Tom,
> 
>  COS can be asserted with either an active high or low depending on the radio. If
> it is active high then you would set carrierfrom=usb  if low then you would set
> carrierfrom=usbinvert   in simpleusb.conf
> 
> All radios are different so you need to set it for your radio. It is best if it is
> active low -  stays at 5V without signal. There is a weak pullup on the cm1xx chip
> but even in this configuration noise can pull it down sometimes. 
> 
> There is no easy answer to this especially if it is active high. In that case
> disconnecting a radio will most certainly cause a keyup as the line will float up
> high.
> 
> This usually happens to first time users who aren't aware of the problem. Usually
> you put a node on and leave it 24/7 with the radio and node active. If you have a
> need to turn off or disconnect the radio and your are leaving the BBB on just make
> sure you are disconnected from any other nodes. 73 Doug WA3DSP
> http://www.crompton.com/hamradio
> 
> 
> > Date: Mon, 16 Feb 2015 10:39:25 -0800
> > From: ve7did at dccnet.com
> > To: arm-allstar at hamvoip.org
> > Subject: Re: [arm-allstar] Time out timer and watchdog functions
> > 
> > We tested this morning and found out indeed it was my radio which I turned off
> > was the culprit.  I was turning OFF only the radio which was asserting COS
> > (active low) which was causing Daveś radio to go into constant transmit.
> > 
> > Not a good situation... if a radio somehow gets turned off because of a power
> > fail condition.  I think this could be fixed by having the COS be an active high.
> > Hopefully the simpleusb can operate on an active high.
> > 
> > As we are new to this stuff, it looks like it is good to play with the radios on
> > the bench for a while... 
> > 
> > 
> > ...73 Tom ve7did 
> > 
> > 
> > Dave:
> > > Perhaps it is me who is causing the problem.  Did you leave us connected up
> > >  together? If so like Doug said if the COS is asserted it could keep your tx
> > > on. Hereś the key, I turned my radio OFF probably around 23:00 last night and
> > > just did the same tonight.   When my radio is OFF, COS will be asserted as it
> > > goes to ground when COS is asserted with no power on.
> > 
> > 
> > 
> > On Sun, 15 Feb 2015 16:22:40 -0800
> > Dave Miller <ve7pke at gmail.com> wrote:
> > 
> > > Doug and Dave,
> > > Thanks for the information.
> > > If it ever happens again I shall do some more digging.
> > > My first concern was that I was locking up a high profile local repeater so
> > > I just cycled the power first. I will be more methodical next time.
> > > 
> > > I will try to answer what I can below.
> > > 
> > > 
> > > 
> > > On Sun, Feb 15, 2015 at 4:00 PM, Doug Crompton <doug at crompton.com> wrote:
> > > 
> > > > Dave,
> > > >
> > > >  I concur with Dave's response but it would be good to have more info.
> > > > What happened to you is rare assuming it wasn't a locked up channel - you
> > > > were connected to someone else that had there COS asserted indefinitely. I
> > > > have not seen a 1.2.1 version BBB lockup like that.
> > > >
> > > > Ok that is good to know.
> > > 
> > > > Were you connected to anyone else at the time?
> > > >
> > > Not that I know of. I guess its possible someone was connected to me.
> > > Since its a simplex node could a connection from a duplex node cause an
> > > issue?
> > > 
> > > > If so the first thing to do is disconnect everyone else if it goes away
> > > > you know it was not your system.
> > > >
> > > Good suggestion , Next time ;-)
> > > 
> > > >
> > > > Is the green light on the USB FOB blinking? If you pull the USB out and
> > > > reinserted does it clear?
> > > >
> > > Don't know
> > > 
> > > >
> > > > Did you transmit on HF or any other band with high power in the vicinity?
> > > >
> > > > No that I recall. All I was doing yesterday was playing on RX with my
> > > Hermes light. I have an Igate running 20 Watts in another building on
> > > property but its on 2M this was on 220. I have had it running for  a few
> > > days and had not noticed the issue.
> > > 
> > > > If this should happen again log into the system and  enter the client -
> > > > asterisk -rvvv
> > > >
> > > OK Will do
> > > 
> > > >
> > > > See if any errors are coming across the screen.  There are key and unkey
> > > > command for simpleusb. At the clinet prompt type:
> > > >
> > > > susb key (or unkey)
> > > >
> > > > and see if you have control of the PTT. Of course leave it unkey.
> > > >
> > > > Remember if you are connected to a bunch of nodes and one of them hangs up
> > > > you will also. The TX timeout is always a good idea. I set mine in the
> > > > Alincos to 5 minutes but you could go shorter, just not so short you cut
> > > > off normal transmissions.
> > > >
> > > > I have it set even shorter for now. I will lengthen once I get more
> > > confidence in system
> > > 
> > > > Also unrelated but the best way to run the Alinco's is in medium power
> > > > with a small muffin fan over the heatsink. They will run all day like that.
> > > > I would never use high power especially on a busy channel. You will
> > > > eventually lose the final.
> > > >
> > > OK I was running low power. A fan will be a good thing eventually.
> > > 
> > > Thanks
> > > Dave
> > > VE7PKE
> > > 
> > > >
> > > >
> > > >
> > > > *73 DougWA3DSPhttp://www.crompton.com/hamradio
> > > > <http://www.crompton.com/hamradio>*
> > > >
> > > >
> > > > ------------------------------
> > > > Date: Sun, 15 Feb 2015 10:57:53 -0800
> > > > From: ve7pke at gmail.com
> > > > To: arm-allstar at hamvoip.org
> > > > Subject: [arm-allstar] Time out timer and watchdog functions
> > > >
> > > >
> > > > The node I am testing out went rogue last night.
> > > > When I went into the shack the radio was stuck in TX and warm ;-)
> > > > I have since enable the built in time out time in the alinco ;-)
> > > > lsnodes show the time out time is enabled.
> > > > How to do troubleshoot this.
> > > > Thanks
> > > > Dave
> > > > VE7PKE
> > > >
> > > >
> > > > _______________________________________________ arm-allstar mailing list
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> > > >
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> > > >
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> > 
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> > 
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