[arm-allstar] One of two USB URIs dropping off

Justin Reed celltech161 at gmail.com
Fri Jan 11 14:56:37 EST 2019


It’s possible. The Pi 3B+ by itself is pushing the upper limit of micro USB’s continuous current handling capability. It’s going to be interesting to see how they address this in the next gen which we assume will be even more hungry.

Sent from my iPhone

> On Jan 11, 2019, at 1:48 PM, Randy Neals <randy at neals.ca> wrote:
> 
> 
> I added a USB thumb drive for backing up the Pi when I reinstalled/rebuilt.
> 
> Making a leap here, but possibly the USB Flash drive is drawing enough extra load, along with two DML URIs to exceed 5VDC capability of RPI USB power capability.
> 
> Will remove USB flash and reboot.
> 
> Randy
> 
>> On Fri, Jan 11, 2019 at 2:04 PM Randy Neals <randy at neals.ca> wrote:
>> Thanks to both..
>> 
>> Are you familiar with any Pi/Linux debug for power or  USB?
>> 
>> Something I could send to a terminal or file to provide some clues?
>> 
>>> On Fri, Jan 11, 2019 at 12:34 PM "Doug Crompton via ARM-allstar" <arm-allstar at hamvoip.org> wrote:
>>> I would agree with that but he did say he tried a different supply.
>>> 
>>> 
>>> *73 Doug*
>>> 
>>> *WA3DSP*
>>> 
>>> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>>> 
>>> On Fri, Jan 11, 2019 at 12:00 PM Justin Reed <celltech161 at gmail.com> wrote:
>>> 
>>> > I’m going to take a stab and suggest that your Pi power supply is
>>> > under-sized for two fobs. You’ll need a minimum of 3000 mAh at 5.1 VDC. Any
>>> > time I see random issues with a Pi it’s power supply related 100% of the
>>> > time, every time.
>>> >
>>> > Sent from my iPhone
>>> >
>>> > > On Jan 11, 2019, at 10:40 AM, Doug Crompton via ARM-allstar <
>>> > arm-allstar at hamvoip.org> wrote:
>>> > >
>>> > > Randy,
>>> > >
>>> > >   I run very few if any Pi's here with more than one USB FOB so I have
>>> > > never experienced that but I know many others are using multiple ports.
>>> > > Have you tried a different Pi? What error messages are you getting in the
>>> > > client when this happens?
>>> > >
>>> > >
>>> > > *73 Doug*
>>> > >
>>> > > *WA3DSP*
>>> > >
>>> > > *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>>> > >
>>> > > On Fri, Jan 11, 2019 at 10:08 AM "Randy Neals via ARM-allstar" <
>>> > > arm-allstar at hamvoip.org> wrote:
>>> > >
>>> > >> Hi All,
>>> > >>
>>> > >> I have a fresh HamVoip install on a RPi3.
>>> > >> I started with one node configured, then plugged in a second USB URI and
>>> > >> configured the second node.
>>> > >>
>>> > >> After about 15-20 minutes, one of the two USB URIs will stop working.
>>> > >> (It could be either one, not consistent) ie: Heartbeat led stops
>>> > blinking
>>> > >> on URI.
>>> > >>
>>> > >> I've tried a couple of different power supplies on the RPi.
>>> > >> Same results.
>>> > >>
>>> > >> I've verified my config files.
>>> > >> I'm using usb / usb1 as the reference names for each node.
>>> > >>
>>> > >> I've done the simpleusb-tune-menu and wrote the config.
>>> > >> Verified that the simple usb files have the USB hardware address.
>>> > >>
>>> > >> It feel like this is a USB subsystem issue in the Rpi/Linux.
>>> > >> Not really sure what I might do next to test/isolate.
>>> > >>
>>> > >> [root at VE3RTR etc]# lsusb
>>> > >>
>>> > >> Bus 001 Device 006: ID 18a5:0251 Verbatim, Ltd
>>> > >>
>>> > >> Bus 001 Device 005: ID 0d8c:013a C-Media Electronics, Inc.
>>> > >>
>>> > >> Bus 001 Device 004: ID 0d8c:013a C-Media Electronics, Inc.
>>> > >>
>>> > >> Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
>>> > SMSC9512/9514
>>> > >> Fast Ethernet Adapter
>>> > >>
>>> > >> Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub
>>> > >>
>>> > >> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>> > >>
>>> > >>
>>> > >> simpleusb_tune_usb.conf
>>> > >>
>>> > >> [usb]
>>> > >>
>>> > >> ; name=usb
>>> > >>
>>> > >> ; devicenum=1
>>> > >>
>>> > >> devstr=1-1.3:1.0
>>> > >>
>>> > >> rxmixerset=140
>>> > >>
>>> > >> txmixaset=290
>>> > >>
>>> > >> txmixbset=0
>>> > >>
>>> > >>
>>> > >> simpleusb_tune_usb1.conf
>>> > >>
>>> > >> [usb1]
>>> > >>
>>> > >> ; name=usb1
>>> > >>
>>> > >> ; devicenum=0
>>> > >>
>>> > >> devstr=1-1.2:1.0
>>> > >>
>>> > >> rxmixerset=140
>>> > >>
>>> > >> txmixaset=290
>>> > >>
>>> > >> txmixbset=0
>>> > >>
>>> > >> Thanks,
>>> > >> Randy W3RWN
>>> > >> _______________________________________________
>>> > >>
>>> > >> ARM-allstar mailing list
>>> > >> ARM-allstar at hamvoip.org
>>> > >> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>> > >>
>>> > >> Visit the BBB and RPi2/3 web page - http://hamvoip.org
>>> > >>
>>> > > _______________________________________________
>>> > >
>>> > > ARM-allstar mailing list
>>> > > ARM-allstar at hamvoip.org
>>> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>> > >
>>> > > Visit the BBB and RPi2/3 web page - http://hamvoip.org
>>> >
>>> _______________________________________________
>>> 
>>> ARM-allstar mailing list
>>> ARM-allstar at hamvoip.org
>>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>> 
>>> Visit the BBB and RPi2/3 web page - http://hamvoip.org
>> -- 
>> Sent from mobile.
> -- 
> Sent from mobile.


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